Rectangle.st
author Claus Gittinger <cg@exept.de>
Wed, 06 Oct 1999 22:22:28 +0200
changeset 4859 592f07591ca2
parent 3488 6e1feb9ead68
child 4860 ac3a625492b2
permissions -rw-r--r--
added #quickMerge:; added comment to #merge:.
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 COPYRIGHT (c) 1989 by Claus Gittinger
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	      All Rights Reserved
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 This software is furnished under a license and may be used
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 only in accordance with the terms of that license and with the
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 inclusion of the above copyright notice.   This software may not
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 be provided or otherwise made available to, or used by, any
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 other person.  No title to or ownership of the software is
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 hereby transferred.
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Geometric subclass:#Rectangle
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	instanceVariableNames:'left top width height'
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	classVariableNames:''
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	poolDictionaries:''
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	category:'Graphics-Geometry'
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!Rectangle class methodsFor:'documentation'!
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copyright
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"
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 COPYRIGHT (c) 1989 by Claus Gittinger
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	      All Rights Reserved
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 This software is furnished under a license and may be used
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 only in accordance with the terms of that license and with the
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 inclusion of the above copyright notice.   This software may not
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 be provided or otherwise made available to, or used by, any
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 other person.  No title to or ownership of the software is
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 hereby transferred.
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!
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documentation
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    Rectangles represent a rectangular area in 2D space.
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    notice, my implementation does not use origin/corner as instance objects
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    but left/top/width/height to save space and allocations. This means, that my
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    Rectangles cannot be used to represent Rectangles in a higher than 2D
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    space. (i.e. only valid if origin/corner are 2D Points)
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    (aside from that, you will not see any difference from the outside)
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    Instance variables:
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        left           <Number>        the left coordinate (i.e origin x)
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        top            <Number>        the top coordinate (i.e origin y)
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        width          <Number>        the width of the rectangle
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        height         <Number>        the height of the rectangle
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    I am not certain, if implementing Rectangle different was a good idea - 
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    subclasses may expect things to be different ...
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    Therefore, this may change.
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    [author:]
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        Claus Gittinger
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    [see also:]
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        Point Polygon Circle EllipticalArc Spline
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        LayoutOrigin LayoutFrame AlignmentOrigin Layout 
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        View GraphicsContext StrokingWrapper FillingWrapper
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! !
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!Rectangle class methodsFor:'instance creation'!
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decodeFromLiteralArray:anArray
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    "create & return a new instance from information encoded in anArray.
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     Redefined for faster creation."
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    |l t w h|
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    l := anArray at:2.
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    t := anArray at:3.
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    w := (anArray at:4) - l.
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    h := (anArray at:5) - t.
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    ^ self left:l top:t width:w height:h
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    "
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     Rectangle decodeFromLiteralArray:#(Rectangle 100 200 300 500) 
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    "
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    "Created: / 28.1.1998 / 17:46:52 / cg"
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!
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fromUser
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    "let user specify a rectangle on the screen, return it"
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    ^ Screen current rectangleFromUser
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    "
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     Rectangle fromUser     
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    "
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!
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left:left right:right top:top bottom:bottom
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    "create and return a new Rectangle giving left, top, right and bottom coordinates"
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    ^ (self basicNew) left:left right:right top:top bottom:bottom
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!
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left:left top:top extent:extent
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    "create and return a new Rectangle giving left, top, and
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     an extent point."
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    ^ (self basicNew) left:left top:top extent:extent
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    "Created: 8.5.1996 / 20:56:29 / cg"
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!
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left:left top:top right:right bottom:bottom
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    "create and return a new Rectangle giving left, top, right and bottom coordinates"
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    ^ (self basicNew) left:left top:top right:right bottom:bottom
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!
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left:left top:top width:w height:h
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    "create and return a new Rectangle giving left and top coordinates
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     and width, height"
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%{  /* NOCONTEXT */
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    REGISTER OBJ newRect;
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    OBJ t;
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    int spc;
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    if (__CanDoQuickNew(OHDR_SIZE + 4*sizeof(OBJ))) {	/* OBJECT ALLOCATION */
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	if (self == Rectangle) {
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	    /*
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	     * short cut - rectangles are created so often ...
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	     */
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	    __qCheckedAlignedNew(newRect, OHDR_SIZE + 4*sizeof(OBJ));
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	    __InstPtr(newRect)->o_class = Rectangle;
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	    __InstPtr(newRect)->i_instvars[0] = left;
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	    __InstPtr(newRect)->i_instvars[1] = top;
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	    __InstPtr(newRect)->i_instvars[2] = w;
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	    __InstPtr(newRect)->i_instvars[3] = h;
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	    if (! (__bothSmallInteger(left, top) && 
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		   __bothSmallInteger(w, h))) {
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		spc = __qSpace(newRect);
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		__STORE_SPC(newRect, left, spc);
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		__STORE_SPC(newRect, top, spc);
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		__STORE_SPC(newRect, w, spc);
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		__STORE_SPC(newRect, h, spc);
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	    }
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	    RETURN ( newRect );
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	}
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    }
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%}.
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    ^ (self basicNew) left:left top:top width:w height:h
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!
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origin:origin corner:corner
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    "create and return a new Rectangle giving top-left and bottom-right points"
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    ^ (self basicNew) origin:origin corner:corner
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!
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origin:origin extent:extent
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    "create and return a new Rectangle giving top-left point and extent point"
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%{  /* NOCONTEXT */
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    REGISTER OBJ newRect;
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    OBJ t;
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    int spc;
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    if (__CanDoQuickNew(OHDR_SIZE + 4*sizeof(OBJ))) {	/* OBJECT ALLOCATION */
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        /*
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	 * short cut - rectangles are created so often ...
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	 */
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	if (self == Rectangle) {
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	    if (__isPoint(origin) && __isPoint(extent)) {
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		__qCheckedAlignedNew(newRect, OHDR_SIZE + 4*sizeof(OBJ));
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		__InstPtr(newRect)->o_class = Rectangle;
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		spc = __qSpace(newRect);
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		t = __PointInstPtr(origin)->p_x;
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		__InstPtr(newRect)->i_instvars[0] = t;
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		__STORE_SPC(newRect, t, spc);
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		t = __PointInstPtr(origin)->p_y;
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		__InstPtr(newRect)->i_instvars[1] = t;
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		__STORE_SPC(newRect, t, spc);
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		t = __PointInstPtr(extent)->p_x;
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		__InstPtr(newRect)->i_instvars[2] = t;
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		__STORE_SPC(newRect, t, spc);
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		t = __PointInstPtr(extent)->p_y;
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		__InstPtr(newRect)->i_instvars[3] = t;
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		__STORE_SPC(newRect, t, spc);
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		RETURN ( newRect );
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	    }
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	}
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    }
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%}.
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    ^ (self basicNew) origin:origin extent:extent
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!
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origin:origin width:w height:h
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    "create and return a new Rectangle giving top-left and extent
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     as individual width/height"
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    ^ (self basicNew) origin:origin width:w height:h
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    "Created: 8.5.1996 / 20:55:53 / cg"
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!
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vertex:vertex1Point vertex:vertex2Point 
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    "create and return a new instance of the receiver,
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     given two diagonally opposite vertices."
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    ^ self
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        origin: (vertex1Point min: vertex2Point)
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        corner: (vertex1Point max: vertex2Point)
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    "Created: 10.2.1997 / 12:14:32 / cg"
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! !
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!Rectangle methodsFor:'accessing'!
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637
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area
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    "return the area 
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     - for screen Rectangles this is the number of pixels"
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    ^ width * height
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!
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bottom
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    "return the y coordinate of the bottom"
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    ^ (top + height)
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!
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bottom:aNumber
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    "set the bottom edge"
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    height := aNumber - top
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!
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bottomCenter
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    "return the bottom center point"
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    ^ (left + (width / 2)) @ (top + height)
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    "Modified: 4.6.1996 / 16:04:08 / cg"
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!
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bottomLeft
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    "return the bottom-left point"
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    ^ left @ (top + height)
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!
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bottomRight
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    "return the bottom-right point"
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    ^ (left + width) @ (top + height)
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!
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center
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    "return the point in the center of the receiver"
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    ^ (left + (width / 2)) @ (top + (height / 2))
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    "Modified: 4.6.1996 / 16:03:53 / cg"
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!
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corner
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    "return the corner"
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    ^ (left + width) @ (top + height)
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!
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corner:aPoint
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    "set the bottom-right corner"
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    width := aPoint x - left.
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    height := aPoint y - top
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!
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extent
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    "return the extent"
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    ^ width @ height
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!
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extent:aPoint
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   294
    "set the extent from the argument, aPoint with width taken from aPoint x
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     and height taken from aPoint y"
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    width := aPoint x.
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    height := aPoint y
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!
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height
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    "return the height of the rectangle"
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    ^ height
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   305
!
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2441
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height:aNumber
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    "change the height of the rectangle.
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     logically, this changes the corner to get the given height."
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9ca4dbc0dc64 added #width: and #height:
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    height := aNumber
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9ca4dbc0dc64 added #width: and #height:
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   313
    "Created: 3.3.1997 / 16:33:22 / cg"
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!
9ca4dbc0dc64 added #width: and #height:
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   315
637
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left
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    "return the x-coordinate of the top-left origin"
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    ^ left
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   320
!
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f71df465819c version at the end
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left:aNumber
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   323
    "set the left edge"
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   324
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    width := width + (left - aNumber).
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   326
    left := aNumber
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diff changeset
   327
!
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diff changeset
   328
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left:newLeft right:right top:newTop bottom:bottom
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6c38ca59927f *** empty log message ***
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diff changeset
   330
    "set the rectangle given left, top, right and bottom coordinates."
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    left := newLeft.
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    top := newTop.
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    width := right - left.
a27a279701f8 Initial revision
claus
parents:
diff changeset
   335
    height := bottom - top
a27a279701f8 Initial revision
claus
parents:
diff changeset
   336
!
a27a279701f8 Initial revision
claus
parents:
diff changeset
   337
1356
a37a6ac34caf checkin from browser
Claus Gittinger <cg@exept.de>
parents: 1355
diff changeset
   338
left:newLeft top:newTop extent:extent
a37a6ac34caf checkin from browser
Claus Gittinger <cg@exept.de>
parents: 1355
diff changeset
   339
    "set the rectangle given left, top, coordinates and an extent"
a37a6ac34caf checkin from browser
Claus Gittinger <cg@exept.de>
parents: 1355
diff changeset
   340
a37a6ac34caf checkin from browser
Claus Gittinger <cg@exept.de>
parents: 1355
diff changeset
   341
    left := newLeft.
a37a6ac34caf checkin from browser
Claus Gittinger <cg@exept.de>
parents: 1355
diff changeset
   342
    top := newTop.
a37a6ac34caf checkin from browser
Claus Gittinger <cg@exept.de>
parents: 1355
diff changeset
   343
    width := extent x.
a37a6ac34caf checkin from browser
Claus Gittinger <cg@exept.de>
parents: 1355
diff changeset
   344
    height := extent y
a37a6ac34caf checkin from browser
Claus Gittinger <cg@exept.de>
parents: 1355
diff changeset
   345
a37a6ac34caf checkin from browser
Claus Gittinger <cg@exept.de>
parents: 1355
diff changeset
   346
    "Created: 8.5.1996 / 20:55:10 / cg"
a37a6ac34caf checkin from browser
Claus Gittinger <cg@exept.de>
parents: 1355
diff changeset
   347
!
a37a6ac34caf checkin from browser
Claus Gittinger <cg@exept.de>
parents: 1355
diff changeset
   348
1
a27a279701f8 Initial revision
claus
parents:
diff changeset
   349
left:newLeft top:newTop right:right bottom:bottom
a27a279701f8 Initial revision
claus
parents:
diff changeset
   350
    "set the rectangle given left, top, right and bottom coordinates"
a27a279701f8 Initial revision
claus
parents:
diff changeset
   351
a27a279701f8 Initial revision
claus
parents:
diff changeset
   352
    left := newLeft.
a27a279701f8 Initial revision
claus
parents:
diff changeset
   353
    top := newTop.
a27a279701f8 Initial revision
claus
parents:
diff changeset
   354
    width := right - left.
a27a279701f8 Initial revision
claus
parents:
diff changeset
   355
    height := bottom - top
a27a279701f8 Initial revision
claus
parents:
diff changeset
   356
!
a27a279701f8 Initial revision
claus
parents:
diff changeset
   357
a27a279701f8 Initial revision
claus
parents:
diff changeset
   358
left:newLeft top:newTop width:newWidth height:newHeight
a27a279701f8 Initial revision
claus
parents:
diff changeset
   359
    "set the rectangle given left, top coordinates and width, height"
a27a279701f8 Initial revision
claus
parents:
diff changeset
   360
a27a279701f8 Initial revision
claus
parents:
diff changeset
   361
    left := newLeft.
a27a279701f8 Initial revision
claus
parents:
diff changeset
   362
    top := newTop.
a27a279701f8 Initial revision
claus
parents:
diff changeset
   363
    width := newWidth.
a27a279701f8 Initial revision
claus
parents:
diff changeset
   364
    height := newHeight
a27a279701f8 Initial revision
claus
parents:
diff changeset
   365
!
a27a279701f8 Initial revision
claus
parents:
diff changeset
   366
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   367
leftCenter
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   368
    "return the left center point"
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   369
1453
eb73ecdb25ab center methods should not use //
Claus Gittinger <cg@exept.de>
parents: 1443
diff changeset
   370
    ^ left @ (top + (height / 2))
eb73ecdb25ab center methods should not use //
Claus Gittinger <cg@exept.de>
parents: 1443
diff changeset
   371
eb73ecdb25ab center methods should not use //
Claus Gittinger <cg@exept.de>
parents: 1443
diff changeset
   372
    "Modified: 4.6.1996 / 16:04:01 / cg"
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   373
!
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   374
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   375
origin
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   376
    "return the origin"
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   377
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   378
    ^ left @ top
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   379
!
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   380
1
a27a279701f8 Initial revision
claus
parents:
diff changeset
   381
origin:aPoint
77
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   382
    "set the top-left origin. The corner remains unchanged."
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   383
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   384
    |newTop newLeft|
1
a27a279701f8 Initial revision
claus
parents:
diff changeset
   385
77
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   386
    newTop := aPoint y.
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   387
    newLeft := aPoint x.
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   388
    height := height + (top - newTop).
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   389
    width := width + (left - newLeft).
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   390
    left := newLeft.
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   391
    top := newTop
1
a27a279701f8 Initial revision
claus
parents:
diff changeset
   392
!
a27a279701f8 Initial revision
claus
parents:
diff changeset
   393
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   394
origin:origin corner:corner
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   395
    "set both origin and corner"
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   396
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   397
    left := origin x.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   398
    top := origin y.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   399
    width := corner x - left.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   400
    height := corner y - top
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   401
!
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   402
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   403
origin:origin extent:extent
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   404
    "set both origin and extent"
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   405
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   406
    left := origin x.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   407
    top := origin y.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   408
    width := extent x.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   409
    height := extent y
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   410
!
1
a27a279701f8 Initial revision
claus
parents:
diff changeset
   411
1356
a37a6ac34caf checkin from browser
Claus Gittinger <cg@exept.de>
parents: 1355
diff changeset
   412
origin:origin width:w height:h
a37a6ac34caf checkin from browser
Claus Gittinger <cg@exept.de>
parents: 1355
diff changeset
   413
    "set both origin and extent; 
a37a6ac34caf checkin from browser
Claus Gittinger <cg@exept.de>
parents: 1355
diff changeset
   414
     the extent is given as individual width and height"
a37a6ac34caf checkin from browser
Claus Gittinger <cg@exept.de>
parents: 1355
diff changeset
   415
a37a6ac34caf checkin from browser
Claus Gittinger <cg@exept.de>
parents: 1355
diff changeset
   416
    left := origin x.
a37a6ac34caf checkin from browser
Claus Gittinger <cg@exept.de>
parents: 1355
diff changeset
   417
    top := origin y.
a37a6ac34caf checkin from browser
Claus Gittinger <cg@exept.de>
parents: 1355
diff changeset
   418
    width := w.
a37a6ac34caf checkin from browser
Claus Gittinger <cg@exept.de>
parents: 1355
diff changeset
   419
    height := h
a37a6ac34caf checkin from browser
Claus Gittinger <cg@exept.de>
parents: 1355
diff changeset
   420
a37a6ac34caf checkin from browser
Claus Gittinger <cg@exept.de>
parents: 1355
diff changeset
   421
    "Created: 8.5.1996 / 20:53:53 / cg"
a37a6ac34caf checkin from browser
Claus Gittinger <cg@exept.de>
parents: 1355
diff changeset
   422
!
a37a6ac34caf checkin from browser
Claus Gittinger <cg@exept.de>
parents: 1355
diff changeset
   423
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   424
right
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   425
    "return the x coordinate of the right"
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   426
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   427
    ^ (left + width)
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   428
!
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   429
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   430
right:aNumber
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   431
    "set the right edge"
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   432
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   433
    width := aNumber - left
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   434
!
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   435
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   436
rightCenter
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   437
    "return the right center point"
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   438
1453
eb73ecdb25ab center methods should not use //
Claus Gittinger <cg@exept.de>
parents: 1443
diff changeset
   439
    ^ (left + width) @ (top + (height / 2))
eb73ecdb25ab center methods should not use //
Claus Gittinger <cg@exept.de>
parents: 1443
diff changeset
   440
eb73ecdb25ab center methods should not use //
Claus Gittinger <cg@exept.de>
parents: 1443
diff changeset
   441
    "Modified: 4.6.1996 / 16:09:05 / cg"
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   442
!
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   443
3269
6e3c86ce2a51 added #setTop: & #setLeft:
Claus Gittinger <cg@exept.de>
parents: 3239
diff changeset
   444
setLeft:newLeft
6e3c86ce2a51 added #setTop: & #setLeft:
Claus Gittinger <cg@exept.de>
parents: 3239
diff changeset
   445
    "set left without adjusting width"
6e3c86ce2a51 added #setTop: & #setLeft:
Claus Gittinger <cg@exept.de>
parents: 3239
diff changeset
   446
6e3c86ce2a51 added #setTop: & #setLeft:
Claus Gittinger <cg@exept.de>
parents: 3239
diff changeset
   447
    left := newLeft.
6e3c86ce2a51 added #setTop: & #setLeft:
Claus Gittinger <cg@exept.de>
parents: 3239
diff changeset
   448
6e3c86ce2a51 added #setTop: & #setLeft:
Claus Gittinger <cg@exept.de>
parents: 3239
diff changeset
   449
    "Modified: / 22.1.1998 / 09:40:35 / av"
6e3c86ce2a51 added #setTop: & #setLeft:
Claus Gittinger <cg@exept.de>
parents: 3239
diff changeset
   450
    "Created: / 3.2.1998 / 19:01:06 / cg"
6e3c86ce2a51 added #setTop: & #setLeft:
Claus Gittinger <cg@exept.de>
parents: 3239
diff changeset
   451
!
6e3c86ce2a51 added #setTop: & #setLeft:
Claus Gittinger <cg@exept.de>
parents: 3239
diff changeset
   452
6e3c86ce2a51 added #setTop: & #setLeft:
Claus Gittinger <cg@exept.de>
parents: 3239
diff changeset
   453
setTop:newTop
6e3c86ce2a51 added #setTop: & #setLeft:
Claus Gittinger <cg@exept.de>
parents: 3239
diff changeset
   454
    "set top without adjusting height"
6e3c86ce2a51 added #setTop: & #setLeft:
Claus Gittinger <cg@exept.de>
parents: 3239
diff changeset
   455
6e3c86ce2a51 added #setTop: & #setLeft:
Claus Gittinger <cg@exept.de>
parents: 3239
diff changeset
   456
    top := newTop.
6e3c86ce2a51 added #setTop: & #setLeft:
Claus Gittinger <cg@exept.de>
parents: 3239
diff changeset
   457
6e3c86ce2a51 added #setTop: & #setLeft:
Claus Gittinger <cg@exept.de>
parents: 3239
diff changeset
   458
    "Modified: / 20.1.1998 / 18:25:35 / av"
6e3c86ce2a51 added #setTop: & #setLeft:
Claus Gittinger <cg@exept.de>
parents: 3239
diff changeset
   459
    "Created: / 3.2.1998 / 19:01:01 / cg"
6e3c86ce2a51 added #setTop: & #setLeft:
Claus Gittinger <cg@exept.de>
parents: 3239
diff changeset
   460
!
6e3c86ce2a51 added #setTop: & #setLeft:
Claus Gittinger <cg@exept.de>
parents: 3239
diff changeset
   461
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   462
top
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   463
    "return the y-coordinate of the top-left"
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   464
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   465
    ^ top
1
a27a279701f8 Initial revision
claus
parents:
diff changeset
   466
!
a27a279701f8 Initial revision
claus
parents:
diff changeset
   467
a27a279701f8 Initial revision
claus
parents:
diff changeset
   468
top:aNumber
a27a279701f8 Initial revision
claus
parents:
diff changeset
   469
    "set the top edge"
a27a279701f8 Initial revision
claus
parents:
diff changeset
   470
a27a279701f8 Initial revision
claus
parents:
diff changeset
   471
    height := height + (top - aNumber).
a27a279701f8 Initial revision
claus
parents:
diff changeset
   472
    top := aNumber
a27a279701f8 Initial revision
claus
parents:
diff changeset
   473
!
a27a279701f8 Initial revision
claus
parents:
diff changeset
   474
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   475
topCenter
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   476
    "return the top center point"
1
a27a279701f8 Initial revision
claus
parents:
diff changeset
   477
1453
eb73ecdb25ab center methods should not use //
Claus Gittinger <cg@exept.de>
parents: 1443
diff changeset
   478
    ^ (left + (width / 2)) @ top
eb73ecdb25ab center methods should not use //
Claus Gittinger <cg@exept.de>
parents: 1443
diff changeset
   479
eb73ecdb25ab center methods should not use //
Claus Gittinger <cg@exept.de>
parents: 1443
diff changeset
   480
    "Modified: 4.6.1996 / 16:09:09 / cg"
1
a27a279701f8 Initial revision
claus
parents:
diff changeset
   481
!
a27a279701f8 Initial revision
claus
parents:
diff changeset
   482
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   483
topLeft
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   484
    "return the top-left point - the same as origin"
77
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   485
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   486
    ^ left @ top
77
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   487
!
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   488
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   489
topLeft:aPoint
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   490
    "Set the top and left edges.
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   491
     The bottom right remains unchanged."
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   492
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   493
    |newTop|
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   494
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   495
    newTop := aPoint y.
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   496
    height := height + (top - newTop).
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   497
    top := newTop.
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   498
    width := aPoint x - left
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   499
!
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   500
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   501
topRight
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   502
    "return the top-right point"
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   503
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   504
    ^ (left + width) @ top
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   505
!
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   506
77
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   507
topRight:aPoint
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   508
    "Set the top and right edges. 
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   509
     The bottom left remains unchanged."
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   510
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   511
    |newTop|
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   512
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   513
    newTop := aPoint y.
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   514
    height := height + (top - newTop).
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   515
    top := newTop.
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   516
    width := aPoint x - left
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   517
!
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   518
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   519
width
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   520
    "return the width of the rectangle"
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   521
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
   522
    ^ width
2441
9ca4dbc0dc64 added #width: and #height:
Claus Gittinger <cg@exept.de>
parents: 2426
diff changeset
   523
!
9ca4dbc0dc64 added #width: and #height:
Claus Gittinger <cg@exept.de>
parents: 2426
diff changeset
   524
9ca4dbc0dc64 added #width: and #height:
Claus Gittinger <cg@exept.de>
parents: 2426
diff changeset
   525
width:aNumber
9ca4dbc0dc64 added #width: and #height:
Claus Gittinger <cg@exept.de>
parents: 2426
diff changeset
   526
    "change the width of the rectangle.
9ca4dbc0dc64 added #width: and #height:
Claus Gittinger <cg@exept.de>
parents: 2426
diff changeset
   527
     logically, this changes the corner to get the given width."
9ca4dbc0dc64 added #width: and #height:
Claus Gittinger <cg@exept.de>
parents: 2426
diff changeset
   528
9ca4dbc0dc64 added #width: and #height:
Claus Gittinger <cg@exept.de>
parents: 2426
diff changeset
   529
    width := aNumber
9ca4dbc0dc64 added #width: and #height:
Claus Gittinger <cg@exept.de>
parents: 2426
diff changeset
   530
9ca4dbc0dc64 added #width: and #height:
Claus Gittinger <cg@exept.de>
parents: 2426
diff changeset
   531
    "Created: 3.3.1997 / 16:33:48 / cg"
1
a27a279701f8 Initial revision
claus
parents:
diff changeset
   532
! !
a27a279701f8 Initial revision
claus
parents:
diff changeset
   533
a27a279701f8 Initial revision
claus
parents:
diff changeset
   534
!Rectangle methodsFor:'comparing'!
a27a279701f8 Initial revision
claus
parents:
diff changeset
   535
a27a279701f8 Initial revision
claus
parents:
diff changeset
   536
= aRectangle
a27a279701f8 Initial revision
claus
parents:
diff changeset
   537
    "return true, if the argument aRectangle represents the same
a27a279701f8 Initial revision
claus
parents:
diff changeset
   538
     rectangle as the receiver"
a27a279701f8 Initial revision
claus
parents:
diff changeset
   539
a27a279701f8 Initial revision
claus
parents:
diff changeset
   540
%{  /* NOCONTEXT */
59
4a86aad06603 *** empty log message ***
claus
parents: 32
diff changeset
   541
    /*
1151
7991d983b17d *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1149
diff changeset
   542
     * because rectangles are often compared in the graphics code,
59
4a86aad06603 *** empty log message ***
claus
parents: 32
diff changeset
   543
     * handle the common case quickly
4a86aad06603 *** empty log message ***
claus
parents: 32
diff changeset
   544
     */
329
claus
parents: 326
diff changeset
   545
    if (__isNonNilObject(aRectangle) 
claus
parents: 326
diff changeset
   546
     && __qClass(aRectangle) == Rectangle) {
1133
961f2b095c22 underline cleanup
Claus Gittinger <cg@exept.de>
parents: 1124
diff changeset
   547
	if ((__InstPtr(self)->i_instvars[0] == __InstPtr(aRectangle)->i_instvars[0])
961f2b095c22 underline cleanup
Claus Gittinger <cg@exept.de>
parents: 1124
diff changeset
   548
	 && (__InstPtr(self)->i_instvars[1] == __InstPtr(aRectangle)->i_instvars[1])
961f2b095c22 underline cleanup
Claus Gittinger <cg@exept.de>
parents: 1124
diff changeset
   549
	 && (__InstPtr(self)->i_instvars[2] == __InstPtr(aRectangle)->i_instvars[2])
961f2b095c22 underline cleanup
Claus Gittinger <cg@exept.de>
parents: 1124
diff changeset
   550
	 && (__InstPtr(self)->i_instvars[3] == __InstPtr(aRectangle)->i_instvars[3])) {
186
a4c3032fc825 *** empty log message ***
claus
parents: 93
diff changeset
   551
	    RETURN ( true );
a4c3032fc825 *** empty log message ***
claus
parents: 93
diff changeset
   552
	}
1133
961f2b095c22 underline cleanup
Claus Gittinger <cg@exept.de>
parents: 1124
diff changeset
   553
	if (__bothSmallInteger(__InstPtr(self)->i_instvars[0], __InstPtr(aRectangle)->i_instvars[0])
961f2b095c22 underline cleanup
Claus Gittinger <cg@exept.de>
parents: 1124
diff changeset
   554
	 && __bothSmallInteger(__InstPtr(self)->i_instvars[1], __InstPtr(aRectangle)->i_instvars[1])
961f2b095c22 underline cleanup
Claus Gittinger <cg@exept.de>
parents: 1124
diff changeset
   555
	 && __bothSmallInteger(__InstPtr(self)->i_instvars[2], __InstPtr(aRectangle)->i_instvars[2])
961f2b095c22 underline cleanup
Claus Gittinger <cg@exept.de>
parents: 1124
diff changeset
   556
	 && __bothSmallInteger(__InstPtr(self)->i_instvars[3], __InstPtr(aRectangle)->i_instvars[3])) {
325
claus
parents: 308
diff changeset
   557
	    RETURN ( false );
claus
parents: 308
diff changeset
   558
	}
1
a27a279701f8 Initial revision
claus
parents:
diff changeset
   559
    }
1151
7991d983b17d *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1149
diff changeset
   560
%}.
259
   561
    (aRectangle species ~~ self species) ifTrue:[^ false].
1
a27a279701f8 Initial revision
claus
parents:
diff changeset
   562
a27a279701f8 Initial revision
claus
parents:
diff changeset
   563
    left = aRectangle left ifFalse:[^ false].
a27a279701f8 Initial revision
claus
parents:
diff changeset
   564
    top = aRectangle top ifFalse:[^ false].
a27a279701f8 Initial revision
claus
parents:
diff changeset
   565
    width = aRectangle width ifFalse:[^ false].
a27a279701f8 Initial revision
claus
parents:
diff changeset
   566
    height = aRectangle height ifFalse:[^ false].
a27a279701f8 Initial revision
claus
parents:
diff changeset
   567
    ^ true
59
4a86aad06603 *** empty log message ***
claus
parents: 32
diff changeset
   568
!
4a86aad06603 *** empty log message ***
claus
parents: 32
diff changeset
   569
4a86aad06603 *** empty log message ***
claus
parents: 32
diff changeset
   570
hash
4a86aad06603 *** empty log message ***
claus
parents: 32
diff changeset
   571
    "return an integer useful for hashing -
4a86aad06603 *** empty log message ***
claus
parents: 32
diff changeset
   572
     redefined since = is redefined here"
4a86aad06603 *** empty log message ***
claus
parents: 32
diff changeset
   573
4a86aad06603 *** empty log message ***
claus
parents: 32
diff changeset
   574
    ^ ((left hash bitShift:16) bitXor:(top hash bitShift:16))
4a86aad06603 *** empty log message ***
claus
parents: 32
diff changeset
   575
      + ((width hash) bitXor:(height hash))
1
a27a279701f8 Initial revision
claus
parents:
diff changeset
   576
! !
a27a279701f8 Initial revision
claus
parents:
diff changeset
   577
356
claus
parents: 329
diff changeset
   578
!Rectangle methodsFor:'converting'!
claus
parents: 329
diff changeset
   579
claus
parents: 329
diff changeset
   580
asFractionalLayout
claus
parents: 329
diff changeset
   581
    "return a layoutFrame in which fractions (top, left, bottom, right)
claus
parents: 329
diff changeset
   582
     are taken from corresponding edges of the receiver.
claus
parents: 329
diff changeset
   583
     You have to make certain that those are in 0..1."
claus
parents: 329
diff changeset
   584
claus
parents: 329
diff changeset
   585
    |l|
claus
parents: 329
diff changeset
   586
claus
parents: 329
diff changeset
   587
    l := LayoutFrame new.
claus
parents: 329
diff changeset
   588
    l
claus
parents: 329
diff changeset
   589
	leftFraction:(self left);
claus
parents: 329
diff changeset
   590
	rightFraction:(self right);
claus
parents: 329
diff changeset
   591
	topFraction:(self top);
claus
parents: 329
diff changeset
   592
	bottomFraction:(self bottom).
claus
parents: 329
diff changeset
   593
    ^ l
claus
parents: 329
diff changeset
   594
claus
parents: 329
diff changeset
   595
    "
claus
parents: 329
diff changeset
   596
     (0.5@0.5 corner:0.75@0.75) asFractionalLayout 
claus
parents: 329
diff changeset
   597
     (0.5@0.5 corner:0.75@0.75) asOffsetLayout      
claus
parents: 329
diff changeset
   598
     (0.5@0.5 corner:0.75@0.75) asLayout        
claus
parents: 329
diff changeset
   599
    "
claus
parents: 329
diff changeset
   600
!
claus
parents: 329
diff changeset
   601
claus
parents: 329
diff changeset
   602
asLayout
claus
parents: 329
diff changeset
   603
    "return a layoutFrame in which offsets (top, left, bottom, right)
claus
parents: 329
diff changeset
   604
     are taken from corresponding edges of the receiver.
1151
7991d983b17d *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1149
diff changeset
   605
     If all values are between 0.0 .. 1.0, a fractionalLayout is created,
356
claus
parents: 329
diff changeset
   606
     otherwise, an offsetLayout"
claus
parents: 329
diff changeset
   607
1454
17ff61f7f34e layout stuff & comment
Claus Gittinger <cg@exept.de>
parents: 1453
diff changeset
   608
    |newLayout l r t b|
356
claus
parents: 329
diff changeset
   609
1151
7991d983b17d *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1149
diff changeset
   610
    newLayout := LayoutFrame new.
1454
17ff61f7f34e layout stuff & comment
Claus Gittinger <cg@exept.de>
parents: 1453
diff changeset
   611
    l := left.
17ff61f7f34e layout stuff & comment
Claus Gittinger <cg@exept.de>
parents: 1453
diff changeset
   612
    r := (self right).
17ff61f7f34e layout stuff & comment
Claus Gittinger <cg@exept.de>
parents: 1453
diff changeset
   613
    t := top.
17ff61f7f34e layout stuff & comment
Claus Gittinger <cg@exept.de>
parents: 1453
diff changeset
   614
    b := (self bottom).
17ff61f7f34e layout stuff & comment
Claus Gittinger <cg@exept.de>
parents: 1453
diff changeset
   615
    ((l between:0.0 and:1.0)
17ff61f7f34e layout stuff & comment
Claus Gittinger <cg@exept.de>
parents: 1453
diff changeset
   616
    and:[(r between:0.0 and:1.0)
17ff61f7f34e layout stuff & comment
Claus Gittinger <cg@exept.de>
parents: 1453
diff changeset
   617
    and:[(t between:0.0 and:1.0)
17ff61f7f34e layout stuff & comment
Claus Gittinger <cg@exept.de>
parents: 1453
diff changeset
   618
    and:[(b between:0.0 and:1.0)]]]) ifTrue:[
17ff61f7f34e layout stuff & comment
Claus Gittinger <cg@exept.de>
parents: 1453
diff changeset
   619
        newLayout
17ff61f7f34e layout stuff & comment
Claus Gittinger <cg@exept.de>
parents: 1453
diff changeset
   620
            leftFraction:l;
17ff61f7f34e layout stuff & comment
Claus Gittinger <cg@exept.de>
parents: 1453
diff changeset
   621
            rightFraction:r;
17ff61f7f34e layout stuff & comment
Claus Gittinger <cg@exept.de>
parents: 1453
diff changeset
   622
            topFraction:t;
17ff61f7f34e layout stuff & comment
Claus Gittinger <cg@exept.de>
parents: 1453
diff changeset
   623
            bottomFraction:b.
356
claus
parents: 329
diff changeset
   624
    ] ifFalse:[
1454
17ff61f7f34e layout stuff & comment
Claus Gittinger <cg@exept.de>
parents: 1453
diff changeset
   625
        newLayout
17ff61f7f34e layout stuff & comment
Claus Gittinger <cg@exept.de>
parents: 1453
diff changeset
   626
            leftOffset:l;
17ff61f7f34e layout stuff & comment
Claus Gittinger <cg@exept.de>
parents: 1453
diff changeset
   627
            rightFraction:0 offset:r;
17ff61f7f34e layout stuff & comment
Claus Gittinger <cg@exept.de>
parents: 1453
diff changeset
   628
            topOffset:t;
17ff61f7f34e layout stuff & comment
Claus Gittinger <cg@exept.de>
parents: 1453
diff changeset
   629
            bottomFraction:0 offset:b.
356
claus
parents: 329
diff changeset
   630
    ].
1151
7991d983b17d *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1149
diff changeset
   631
    ^ newLayout
356
claus
parents: 329
diff changeset
   632
claus
parents: 329
diff changeset
   633
    "
claus
parents: 329
diff changeset
   634
     (0.5@0.5 corner:0.75@0.75) asFractionalLayout  
claus
parents: 329
diff changeset
   635
     (0.5@0.5 corner:0.75@0.75) asOffsetLayout       
claus
parents: 329
diff changeset
   636
     (0.5@0.5 corner:0.75@0.75) asLayout              
claus
parents: 329
diff changeset
   637
     (0@0 corner:1@1) asLayout                      
claus
parents: 329
diff changeset
   638
     (0@0 corner:1@1) asFractionalLayout             
claus
parents: 329
diff changeset
   639
     (0@0 corner:1@1) asOffsetLayout                 
claus
parents: 329
diff changeset
   640
    "
1454
17ff61f7f34e layout stuff & comment
Claus Gittinger <cg@exept.de>
parents: 1453
diff changeset
   641
17ff61f7f34e layout stuff & comment
Claus Gittinger <cg@exept.de>
parents: 1453
diff changeset
   642
    "Modified: 5.6.1996 / 00:45:46 / cg"
356
claus
parents: 329
diff changeset
   643
!
claus
parents: 329
diff changeset
   644
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   645
asOffsetLayout
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   646
    "return a layoutFrame in which offsets (top, left, bottom, right)
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   647
     are taken from corresponding edges of the receiver.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   648
     You have to make certain that those are in 0..1."
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   649
1151
7991d983b17d *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1149
diff changeset
   650
    |newLayout|
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   651
1151
7991d983b17d *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1149
diff changeset
   652
    newLayout := LayoutFrame new.
7991d983b17d *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1149
diff changeset
   653
    newLayout
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   654
	leftOffset:(self left);
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   655
	rightFraction:0 offset:(self right);
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   656
	topOffset:(self top);
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   657
	bottomFraction:0 offset:(self bottom).
1151
7991d983b17d *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1149
diff changeset
   658
    ^ newLayout
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   659
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   660
    "
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   661
     (0.5@0.5 corner:0.75@0.75) asFractionalLayout 
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   662
     (0.5@0.5 corner:0.75@0.75) asOffsetLayout      
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   663
     (0.5@0.5 corner:0.75@0.75) asLayout        
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   664
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   665
     (10@10 corner:20@20) asFractionalLayout 
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   666
     (10@10 corner:20@20) asOffsetLayout     
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   667
     (10@10 corner:20@20) asLayout             
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   668
    "
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   669
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   670
!
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   671
356
claus
parents: 329
diff changeset
   672
asPointArray
claus
parents: 329
diff changeset
   673
    "return an array containing my corners (clockwise) and
claus
parents: 329
diff changeset
   674
     the origin again as 5th element. Can be used to convert
claus
parents: 329
diff changeset
   675
     a rectangle into a polygon."
claus
parents: 329
diff changeset
   676
claus
parents: 329
diff changeset
   677
    |org|
claus
parents: 329
diff changeset
   678
claus
parents: 329
diff changeset
   679
    ^ Array with:(org := self origin)
claus
parents: 329
diff changeset
   680
	    with:self topRight
claus
parents: 329
diff changeset
   681
	    with:self corner
claus
parents: 329
diff changeset
   682
	    with:self bottomLeft
claus
parents: 329
diff changeset
   683
	    with:org 
claus
parents: 329
diff changeset
   684
claus
parents: 329
diff changeset
   685
    "
claus
parents: 329
diff changeset
   686
     (10@10 corner:100@100) asPointArray 
claus
parents: 329
diff changeset
   687
    "
claus
parents: 329
diff changeset
   688
!
claus
parents: 329
diff changeset
   689
1354
Claus Gittinger <cg@exept.de>
parents: 1349
diff changeset
   690
asPolygon
Claus Gittinger <cg@exept.de>
parents: 1349
diff changeset
   691
    "return a polygon from the receiver"
Claus Gittinger <cg@exept.de>
parents: 1349
diff changeset
   692
Claus Gittinger <cg@exept.de>
parents: 1349
diff changeset
   693
    ^ Polygon vertices:self asPointArray
Claus Gittinger <cg@exept.de>
parents: 1349
diff changeset
   694
Claus Gittinger <cg@exept.de>
parents: 1349
diff changeset
   695
    "
Claus Gittinger <cg@exept.de>
parents: 1349
diff changeset
   696
     (10@10 corner:100@100) asPolygon
Claus Gittinger <cg@exept.de>
parents: 1349
diff changeset
   697
    "
Claus Gittinger <cg@exept.de>
parents: 1349
diff changeset
   698
Claus Gittinger <cg@exept.de>
parents: 1349
diff changeset
   699
    "Modified: 8.5.1996 / 20:14:44 / cg"
Claus Gittinger <cg@exept.de>
parents: 1349
diff changeset
   700
!
Claus Gittinger <cg@exept.de>
parents: 1349
diff changeset
   701
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   702
fromLiteralArrayEncoding:encoding
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   703
    "read my values from an encoding.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   704
     The encoding is supposed to be of the form: (Rectangle orgX orgY cornX cornY)"
356
claus
parents: 329
diff changeset
   705
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   706
    left := encoding at:2.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   707
    top := encoding at:3.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   708
    width := (encoding at:4) - left.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   709
    height := (encoding at:5) - top
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   710
356
claus
parents: 329
diff changeset
   711
claus
parents: 329
diff changeset
   712
    "
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   713
     Rectangle new fromLiteralArrayEncoding:#(Rectangle 100 200 300 500) 
356
claus
parents: 329
diff changeset
   714
    "
379
5b5a130ccd09 revision added
claus
parents: 362
diff changeset
   715
!
5b5a130ccd09 revision added
claus
parents: 362
diff changeset
   716
421
claus
parents: 384
diff changeset
   717
literalArrayEncoding
1245
c8afea3d5af0 commentary
Claus Gittinger <cg@exept.de>
parents: 1151
diff changeset
   718
    "encode myself as an array, from which a copy of the receiver
c8afea3d5af0 commentary
Claus Gittinger <cg@exept.de>
parents: 1151
diff changeset
   719
     can be reconstructed with #decodeAsLiteralArray.
421
claus
parents: 384
diff changeset
   720
     The encoding is: (Rectangle orgX orgY cornX cornY)"
claus
parents: 384
diff changeset
   721
claus
parents: 384
diff changeset
   722
    ^ Array
1245
c8afea3d5af0 commentary
Claus Gittinger <cg@exept.de>
parents: 1151
diff changeset
   723
        with:#Rectangle
c8afea3d5af0 commentary
Claus Gittinger <cg@exept.de>
parents: 1151
diff changeset
   724
        with:left
c8afea3d5af0 commentary
Claus Gittinger <cg@exept.de>
parents: 1151
diff changeset
   725
        with:top
2426
3b04313af90e literalEncoding
ca
parents: 2381
diff changeset
   726
        with:(left + width)
3b04313af90e literalEncoding
ca
parents: 2381
diff changeset
   727
        with:(top + height)
421
claus
parents: 384
diff changeset
   728
claus
parents: 384
diff changeset
   729
claus
parents: 384
diff changeset
   730
    "
claus
parents: 384
diff changeset
   731
     Rectangle new fromLiteralArrayEncoding:#(Rectangle 100 200 300 500) 
claus
parents: 384
diff changeset
   732
     (100@200 corner:300@500) literalArrayEncoding 
claus
parents: 384
diff changeset
   733
    "
claus
parents: 384
diff changeset
   734
claus
parents: 384
diff changeset
   735
    "Modified: 1.9.1995 / 02:16:54 / claus"
1245
c8afea3d5af0 commentary
Claus Gittinger <cg@exept.de>
parents: 1151
diff changeset
   736
    "Modified: 22.4.1996 / 13:00:36 / cg"
421
claus
parents: 384
diff changeset
   737
!
claus
parents: 384
diff changeset
   738
3488
6e1feb9ead68 prefRect may now be a valueHolder or block
Claus Gittinger <cg@exept.de>
parents: 3269
diff changeset
   739
rectangleRelativeTo:aRectangle preferred:prefRectHolder
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   740
    "compute a displayRectangle, treating the receiver like a
1454
17ff61f7f34e layout stuff & comment
Claus Gittinger <cg@exept.de>
parents: 1453
diff changeset
   741
     layoutFrame. 
17ff61f7f34e layout stuff & comment
Claus Gittinger <cg@exept.de>
parents: 1453
diff changeset
   742
     This allows rectangles to be used interchangable with Layouts."
379
5b5a130ccd09 revision added
claus
parents: 362
diff changeset
   743
3488
6e1feb9ead68 prefRect may now be a valueHolder or block
Claus Gittinger <cg@exept.de>
parents: 3269
diff changeset
   744
    ^ (self asLayout) rectangleRelativeTo:aRectangle preferred:prefRectHolder
379
5b5a130ccd09 revision added
claus
parents: 362
diff changeset
   745
5b5a130ccd09 revision added
claus
parents: 362
diff changeset
   746
    "
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   747
     (10@20 corner:20@30) rectangleRelativeTo:(0@0 corner:100@100) preferred:(0@0 corner:50@50) 
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   748
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   749
     (0.5@0.5) rectangleRelativeTo:(0@0 corner:100@100) preferred:(0@0 corner:50@50) 
379
5b5a130ccd09 revision added
claus
parents: 362
diff changeset
   750
    "
1454
17ff61f7f34e layout stuff & comment
Claus Gittinger <cg@exept.de>
parents: 1453
diff changeset
   751
3488
6e1feb9ead68 prefRect may now be a valueHolder or block
Claus Gittinger <cg@exept.de>
parents: 3269
diff changeset
   752
    "Modified: / 27.5.1998 / 10:20:20 / cg"
356
claus
parents: 329
diff changeset
   753
! !
claus
parents: 329
diff changeset
   754
186
a4c3032fc825 *** empty log message ***
claus
parents: 93
diff changeset
   755
!Rectangle methodsFor:'destructive rectangle operations'!
a4c3032fc825 *** empty log message ***
claus
parents: 93
diff changeset
   756
356
claus
parents: 329
diff changeset
   757
expandBy:delta
claus
parents: 329
diff changeset
   758
    "destructively expanded the receiver in all directions
claus
parents: 329
diff changeset
   759
     by amount, a Point, Rectangle or Number.
claus
parents: 329
diff changeset
   760
     Warning: this is a destructive operation, modifying the receiver
claus
parents: 329
diff changeset
   761
     NOT returning a copy. You have to be certain to be the exclusive
claus
parents: 329
diff changeset
   762
     owner of the receiver to avoid side effects. See also: #expandedBy:"
claus
parents: 329
diff changeset
   763
claus
parents: 329
diff changeset
   764
    |amountPoint deltaLeft deltaTop deltaWidth deltaHeight|
claus
parents: 329
diff changeset
   765
claus
parents: 329
diff changeset
   766
    delta isNumber ifTrue:[
claus
parents: 329
diff changeset
   767
	deltaLeft := deltaTop := delta.
claus
parents: 329
diff changeset
   768
	deltaWidth := deltaHeight := delta * 2.
claus
parents: 329
diff changeset
   769
    ] ifFalse:[
claus
parents: 329
diff changeset
   770
	delta isRectangle ifTrue:[
claus
parents: 329
diff changeset
   771
	    deltaLeft := delta left.
claus
parents: 329
diff changeset
   772
	    deltaTop := delta top.
claus
parents: 329
diff changeset
   773
	    deltaWidth := deltaLeft + delta right.
claus
parents: 329
diff changeset
   774
	    deltaHeight := deltaTop + delta bottom
claus
parents: 329
diff changeset
   775
	] ifFalse:[
claus
parents: 329
diff changeset
   776
	    amountPoint := delta asPoint.
claus
parents: 329
diff changeset
   777
	    deltaLeft := amountPoint x.
claus
parents: 329
diff changeset
   778
	    deltaTop := amountPoint y.
claus
parents: 329
diff changeset
   779
	    deltaWidth := deltaLeft * 2.
claus
parents: 329
diff changeset
   780
	    deltaHeight := deltaTop * 2.
claus
parents: 329
diff changeset
   781
	]
claus
parents: 329
diff changeset
   782
    ].
claus
parents: 329
diff changeset
   783
claus
parents: 329
diff changeset
   784
    left := (left - deltaLeft).
claus
parents: 329
diff changeset
   785
    top := (top - deltaTop).
claus
parents: 329
diff changeset
   786
    width := (width + deltaWidth).
claus
parents: 329
diff changeset
   787
    height := (height + deltaHeight).
claus
parents: 329
diff changeset
   788
claus
parents: 329
diff changeset
   789
    "
claus
parents: 329
diff changeset
   790
     |r|
claus
parents: 329
diff changeset
   791
     r := Rectangle origin:10@10 corner:100@100.
claus
parents: 329
diff changeset
   792
     r expandBy:5.
claus
parents: 329
diff changeset
   793
claus
parents: 329
diff changeset
   794
     r := Rectangle origin:10@10 corner:100@100.
claus
parents: 329
diff changeset
   795
     r expandBy:(5 @ 0).
claus
parents: 329
diff changeset
   796
claus
parents: 329
diff changeset
   797
     r := Rectangle origin:10@10 corner:100@100.
claus
parents: 329
diff changeset
   798
     r expandBy:(10 @ 10).
claus
parents: 329
diff changeset
   799
claus
parents: 329
diff changeset
   800
     r := Rectangle origin:10@10 corner:100@100.
claus
parents: 329
diff changeset
   801
     r expandBy:( 10@10 corner:20@20 )
claus
parents: 329
diff changeset
   802
    "
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   803
!
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   804
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   805
moveBy:aPoint
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   806
    "destructively translate the rectangle by some distance.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   807
     sorry for the name inconsistency - but GNU-ST named it that way"
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   808
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   809
    left := left + aPoint x.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   810
    top := top + aPoint y
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   811
!
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   812
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   813
moveTo:aPoint
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   814
    "destructively translate the rectangle to have its origin at aPoint."
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   815
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   816
    |diff|
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   817
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   818
    diff := aPoint - self origin.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   819
    self origin:aPoint corner:self corner + diff
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   820
!
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   821
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   822
scaleBy:scale
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   823
    "scale the receiver rectangle by scale (a Number or Point).
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   824
     This is destructive (modifies the receiver, not a copy) and 
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   825
     should only be used if you know, that you are the exclusive owner 
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   826
     of the receiver. (use scaledBy if in doubt)"
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   827
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   828
    |scalePoint sx sy|
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   829
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   830
    (scale isMemberOf:Point) ifTrue:[  "type hint to stc"
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   831
	sx := scale x.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   832
	sy := scale y
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   833
    ] ifFalse:[
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   834
	scalePoint := scale asPoint.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   835
	sx := scalePoint x.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   836
	sy := scalePoint y
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   837
    ].
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   838
    width := width * sx.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   839
    height := height * sy.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   840
    left := left * sx.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   841
    top := top * sy
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   842
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   843
    "
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   844
     (Rectangle origin:10@10 corner:50@50) scaleBy:2 
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   845
    "
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   846
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   847
    "its destructive:"
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   848
    "
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   849
     |r1 r2|
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   850
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   851
     r1 := Rectangle origin:10@10 corner:50@50.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   852
     r2 := r1 scaleBy:2.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   853
     r1 
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   854
    "
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   855
!
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   856
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   857
translateBy:amount
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   858
    "translate (i.e. move) the receiver rectangle 
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   859
     by amount, a Point or Number.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   860
     This is destructive (modifies the receiver, not a copy) and 
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   861
     should only be used if you know, that you are the exclusive owner 
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   862
     of the receiver. (use translatedBy if in doubt)"
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   863
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   864
    |amountPoint|
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   865
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   866
    (amount isMemberOf:Point) ifTrue:[  "type hint to stc"
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   867
	left := left + amount x.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   868
	top := top + amount y
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   869
    ] ifFalse:[
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   870
	amountPoint := amount asPoint.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   871
	left := left + amountPoint x.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   872
	top := top + amountPoint y
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   873
    ]
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   874
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   875
    "
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   876
     (Rectangle origin:10@10 corner:50@50) translateBy:10
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   877
    "
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   878
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   879
    "its destructive:"
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   880
    "
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   881
     |r1 r2|
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   882
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   883
     r1 := Rectangle origin:10@10 corner:50@50.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   884
     r2 := r1 translateBy:10.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   885
     r1 
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   886
    "
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   887
! !
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   888
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   889
!Rectangle methodsFor:'displaying'!
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   890
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   891
displayFilledOn:aGC
1314
18fabbc0e0a6 examples
Claus Gittinger <cg@exept.de>
parents: 1290
diff changeset
   892
    "display a filled rectangle as represented by the receiver in 
18fabbc0e0a6 examples
Claus Gittinger <cg@exept.de>
parents: 1290
diff changeset
   893
     the graphicsContext, aGC"
18fabbc0e0a6 examples
Claus Gittinger <cg@exept.de>
parents: 1290
diff changeset
   894
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   895
    aGC fillRectangleX:left y:top width:width height:height
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   896
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   897
    "
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   898
     |v|
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   899
1349
275388fd5271 comments & more Geometric functionality
Claus Gittinger <cg@exept.de>
parents: 1314
diff changeset
   900
     v := View new openAndWait.
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   901
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   902
     (Rectangle origin:10@10 corner:50@50) displayFilledOn:v
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   903
    "
1314
18fabbc0e0a6 examples
Claus Gittinger <cg@exept.de>
parents: 1290
diff changeset
   904
1349
275388fd5271 comments & more Geometric functionality
Claus Gittinger <cg@exept.de>
parents: 1314
diff changeset
   905
    "Modified: 8.5.1996 / 14:40:42 / cg"
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   906
!
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   907
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   908
displayStrokedOn:aGC
1314
18fabbc0e0a6 examples
Claus Gittinger <cg@exept.de>
parents: 1290
diff changeset
   909
    "display an unfilled rectangle as represented by the receiver in 
18fabbc0e0a6 examples
Claus Gittinger <cg@exept.de>
parents: 1290
diff changeset
   910
     the graphicsContext, aGC"
18fabbc0e0a6 examples
Claus Gittinger <cg@exept.de>
parents: 1290
diff changeset
   911
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   912
    aGC displayRectangleX:left y:top width:width height:height
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   913
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   914
    "
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   915
     |v|
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   916
1349
275388fd5271 comments & more Geometric functionality
Claus Gittinger <cg@exept.de>
parents: 1314
diff changeset
   917
     v := View new openAndWait.
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   918
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   919
     (Rectangle origin:10@10 corner:50@50) displayStrokedOn:v
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   920
    "
1314
18fabbc0e0a6 examples
Claus Gittinger <cg@exept.de>
parents: 1290
diff changeset
   921
1349
275388fd5271 comments & more Geometric functionality
Claus Gittinger <cg@exept.de>
parents: 1314
diff changeset
   922
    "Modified: 8.5.1996 / 14:40:53 / cg"
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   923
! !
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   924
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   925
!Rectangle methodsFor:'printing & storing'!
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   926
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   927
printOn:aStream
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   928
    "print the receiver on aStream"
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   929
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   930
    aStream nextPutAll:(self class name).
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   931
    aStream nextPutAll:' origin:'.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   932
    (self origin) printOn:aStream.
1443
d747d574e26d checkin from browser
Claus Gittinger <cg@exept.de>
parents: 1390
diff changeset
   933
    aStream nextPutAll:' extent:'.
d747d574e26d checkin from browser
Claus Gittinger <cg@exept.de>
parents: 1390
diff changeset
   934
    (self extent) printOn:aStream
d747d574e26d checkin from browser
Claus Gittinger <cg@exept.de>
parents: 1390
diff changeset
   935
d747d574e26d checkin from browser
Claus Gittinger <cg@exept.de>
parents: 1390
diff changeset
   936
    "Modified: 29.5.1996 / 00:17:39 / cg"
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   937
!
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   938
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   939
storeOn:aStream
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   940
    "store the receiver on aStream; i.e. print an expression which will
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   941
     reconstruct the receiver"
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   942
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   943
    aStream nextPut:$(.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   944
    aStream nextPutAll:(self class name).
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   945
    aStream nextPutAll:' origin:'.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   946
    (self origin) storeOn:aStream.
1443
d747d574e26d checkin from browser
Claus Gittinger <cg@exept.de>
parents: 1390
diff changeset
   947
    aStream nextPutAll:' extent:'.
d747d574e26d checkin from browser
Claus Gittinger <cg@exept.de>
parents: 1390
diff changeset
   948
    (self extent) storeOn:aStream.
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   949
    aStream nextPut:$)
1443
d747d574e26d checkin from browser
Claus Gittinger <cg@exept.de>
parents: 1390
diff changeset
   950
d747d574e26d checkin from browser
Claus Gittinger <cg@exept.de>
parents: 1390
diff changeset
   951
    "Modified: 29.5.1996 / 00:17:42 / cg"
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   952
! !
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   953
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   954
!Rectangle methodsFor:'queries'!
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   955
1349
275388fd5271 comments & more Geometric functionality
Claus Gittinger <cg@exept.de>
parents: 1314
diff changeset
   956
bounds
275388fd5271 comments & more Geometric functionality
Claus Gittinger <cg@exept.de>
parents: 1314
diff changeset
   957
    "return the smallest enclosing rectangle"
275388fd5271 comments & more Geometric functionality
Claus Gittinger <cg@exept.de>
parents: 1314
diff changeset
   958
275388fd5271 comments & more Geometric functionality
Claus Gittinger <cg@exept.de>
parents: 1314
diff changeset
   959
    ^ self
275388fd5271 comments & more Geometric functionality
Claus Gittinger <cg@exept.de>
parents: 1314
diff changeset
   960
275388fd5271 comments & more Geometric functionality
Claus Gittinger <cg@exept.de>
parents: 1314
diff changeset
   961
    "Created: 8.5.1996 / 13:56:24 / cg"
275388fd5271 comments & more Geometric functionality
Claus Gittinger <cg@exept.de>
parents: 1314
diff changeset
   962
    "Modified: 8.5.1996 / 14:06:38 / cg"
275388fd5271 comments & more Geometric functionality
Claus Gittinger <cg@exept.de>
parents: 1314
diff changeset
   963
!
275388fd5271 comments & more Geometric functionality
Claus Gittinger <cg@exept.de>
parents: 1314
diff changeset
   964
275388fd5271 comments & more Geometric functionality
Claus Gittinger <cg@exept.de>
parents: 1314
diff changeset
   965
canBeFilled
275388fd5271 comments & more Geometric functionality
Claus Gittinger <cg@exept.de>
parents: 1314
diff changeset
   966
    "return true, if the receiver can be drawn as a filled geometric.
275388fd5271 comments & more Geometric functionality
Claus Gittinger <cg@exept.de>
parents: 1314
diff changeset
   967
     Always true here."
275388fd5271 comments & more Geometric functionality
Claus Gittinger <cg@exept.de>
parents: 1314
diff changeset
   968
275388fd5271 comments & more Geometric functionality
Claus Gittinger <cg@exept.de>
parents: 1314
diff changeset
   969
    ^ true
275388fd5271 comments & more Geometric functionality
Claus Gittinger <cg@exept.de>
parents: 1314
diff changeset
   970
275388fd5271 comments & more Geometric functionality
Claus Gittinger <cg@exept.de>
parents: 1314
diff changeset
   971
    "Created: 8.5.1996 / 08:16:47 / cg"
275388fd5271 comments & more Geometric functionality
Claus Gittinger <cg@exept.de>
parents: 1314
diff changeset
   972
!
275388fd5271 comments & more Geometric functionality
Claus Gittinger <cg@exept.de>
parents: 1314
diff changeset
   973
2381
10af98758a49 added dummy Scale & InverseScale classVars.
Claus Gittinger <cg@exept.de>
parents: 2373
diff changeset
   974
computeBounds
10af98758a49 added dummy Scale & InverseScale classVars.
Claus Gittinger <cg@exept.de>
parents: 2373
diff changeset
   975
    "return the smallest enclosing rectangle"
10af98758a49 added dummy Scale & InverseScale classVars.
Claus Gittinger <cg@exept.de>
parents: 2373
diff changeset
   976
10af98758a49 added dummy Scale & InverseScale classVars.
Claus Gittinger <cg@exept.de>
parents: 2373
diff changeset
   977
    ^ self
10af98758a49 added dummy Scale & InverseScale classVars.
Claus Gittinger <cg@exept.de>
parents: 2373
diff changeset
   978
10af98758a49 added dummy Scale & InverseScale classVars.
Claus Gittinger <cg@exept.de>
parents: 2373
diff changeset
   979
    "Modified: 8.5.1996 / 14:06:38 / cg"
10af98758a49 added dummy Scale & InverseScale classVars.
Claus Gittinger <cg@exept.de>
parents: 2373
diff changeset
   980
    "Created: 12.2.1997 / 11:44:45 / cg"
10af98758a49 added dummy Scale & InverseScale classVars.
Claus Gittinger <cg@exept.de>
parents: 2373
diff changeset
   981
!
10af98758a49 added dummy Scale & InverseScale classVars.
Claus Gittinger <cg@exept.de>
parents: 2373
diff changeset
   982
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   983
isRectangle
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   984
    "return true, if the receiver is some kind of rectangle"
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   985
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
   986
    ^ true
186
a4c3032fc825 *** empty log message ***
claus
parents: 93
diff changeset
   987
! !
a4c3032fc825 *** empty log message ***
claus
parents: 93
diff changeset
   988
1
a27a279701f8 Initial revision
claus
parents:
diff changeset
   989
!Rectangle methodsFor:'rectangle operations'!
a27a279701f8 Initial revision
claus
parents:
diff changeset
   990
a27a279701f8 Initial revision
claus
parents:
diff changeset
   991
+ aPoint
356
claus
parents: 329
diff changeset
   992
    "return a new rectangle with same extent as receiver but
1
a27a279701f8 Initial revision
claus
parents:
diff changeset
   993
     origin translated by the argument, aPoint"
a27a279701f8 Initial revision
claus
parents:
diff changeset
   994
217
a0400fdbc933 *** empty log message ***
claus
parents: 208
diff changeset
   995
    |amountPoint|
a0400fdbc933 *** empty log message ***
claus
parents: 208
diff changeset
   996
2274
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
   997
    (aPoint isMemberOf:SmallInteger) ifTrue:[
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
   998
        "/ this is an stc optimization
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
   999
        ^ Rectangle 
2373
e5bc707209cd oops - +/- were wrong
Claus Gittinger <cg@exept.de>
parents: 2372
diff changeset
  1000
            left:(left + aPoint)
e5bc707209cd oops - +/- were wrong
Claus Gittinger <cg@exept.de>
parents: 2372
diff changeset
  1001
            top:(top + aPoint)
2274
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
  1002
            width:width
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
  1003
            height:height
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
  1004
    ].
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
  1005
217
a0400fdbc933 *** empty log message ***
claus
parents: 208
diff changeset
  1006
    amountPoint := aPoint asPoint.
a0400fdbc933 *** empty log message ***
claus
parents: 208
diff changeset
  1007
    ^ Rectangle left:(left + amountPoint x)
2274
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
  1008
                 top:(top + amountPoint y)
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
  1009
               width:width
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
  1010
              height:height
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
  1011
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
  1012
    "Modified: 25.1.1997 / 17:29:53 / cg"
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
  1013
!
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
  1014
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
  1015
- aPoint
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
  1016
    "return a new rectangle with same extent as receiver but
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
  1017
     origin translated by the argument, aPoint"
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
  1018
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
  1019
    |amountPoint|
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
  1020
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
  1021
    (aPoint isMemberOf:SmallInteger) ifTrue:[
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
  1022
        "/ this is an stc optimization
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
  1023
        ^ Rectangle 
2373
e5bc707209cd oops - +/- were wrong
Claus Gittinger <cg@exept.de>
parents: 2372
diff changeset
  1024
            left:(left - aPoint)
e5bc707209cd oops - +/- were wrong
Claus Gittinger <cg@exept.de>
parents: 2372
diff changeset
  1025
            top:(top - aPoint)
2274
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
  1026
            width:width
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
  1027
            height:height
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
  1028
    ].
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
  1029
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
  1030
    amountPoint := aPoint asPoint.
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
  1031
    ^ Rectangle left:(left - amountPoint x)
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
  1032
                 top:(top - amountPoint y)
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
  1033
               width:width
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
  1034
              height:height
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
  1035
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
  1036
    "Modified: 25.1.1997 / 17:29:53 / cg"
891194fa4b17 *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 1507
diff changeset
  1037
    "Created: 25.1.1997 / 17:30:21 / cg"
1
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1038
!
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1039
326
d2902942491d *** empty log message ***
claus
parents: 325
diff changeset
  1040
align:offset with:someCoordinate
d2902942491d *** empty log message ***
claus
parents: 325
diff changeset
  1041
    "return a new rectangle which is translated (i.e. moved)
d2902942491d *** empty log message ***
claus
parents: 325
diff changeset
  1042
     such that the point offset in mySelf is placed on someCoordinate."
d2902942491d *** empty log message ***
claus
parents: 325
diff changeset
  1043
d2902942491d *** empty log message ***
claus
parents: 325
diff changeset
  1044
    ^ Rectangle origin:(someCoordinate - offset + self origin)
d2902942491d *** empty log message ***
claus
parents: 325
diff changeset
  1045
		extent:(self extent)
d2902942491d *** empty log message ***
claus
parents: 325
diff changeset
  1046
    "
d2902942491d *** empty log message ***
claus
parents: 325
diff changeset
  1047
     |r|
d2902942491d *** empty log message ***
claus
parents: 325
diff changeset
  1048
d2902942491d *** empty log message ***
claus
parents: 325
diff changeset
  1049
     r := Rectangle origin:10@10 corner:50@50.
d2902942491d *** empty log message ***
claus
parents: 325
diff changeset
  1050
     r align:(r center) with:100@100.
d2902942491d *** empty log message ***
claus
parents: 325
diff changeset
  1051
    "
d2902942491d *** empty log message ***
claus
parents: 325
diff changeset
  1052
!
d2902942491d *** empty log message ***
claus
parents: 325
diff changeset
  1053
1
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1054
amountToTranslateWithin: aRectangle
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1055
    "for GNU-ST compatibility"
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1056
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1057
    ^(aRectangle origin) - self origin
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1058
!
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1059
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1060
areasOutside: aRectangle
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1061
    "----------------------------------------------------------------
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1062
    | added for GNU-ST compatibility
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1063
    |
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1064
    | author: Doug McCallum <uunet!!ico.isc.com!!dougm>
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1065
    |
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1066
    |areasOutside: aRectangle
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1067
    | most complicated of the Rectangle primitives
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1068
    | The basic methodology is to first determine that there is an 
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1069
    | intersection by finding the overlapping rectangle.  From the
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1070
    | overlapping rectangle, first determine if it runs along an edge.
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1071
    | If it doesn't, extend the rectangle up to the top edge and add
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1072
    | the new rectangle to the collection and start the rest of the
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1073
    | process.  If the left edge does not touch the left edge of self,
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1074
    | extend it to the edge saving the new rectangle.  Then do the 
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1075
    | same to the right edge.  Then check top and bottom edges.  Most
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1076
    | of the time only 2 or 3 rectangles get formed, occasionally 4.
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1077
    | It should be possible to never get more than 3 but requires more
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1078
    | work.
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1079
     ----------------------------------------------------------------"
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1080
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1081
    | collect iRect tmp |
1124
53f6970d9d7d *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 867
diff changeset
  1082
360
claus
parents: 359
diff changeset
  1083
    iRect := self intersect: aRectangle.
1124
53f6970d9d7d *** empty log message ***
Claus Gittinger <cg@exept.de>
parents: 867
diff changeset
  1084
    iRect isNil ifTrue: [^nil]. "case of no intersection"
186
a4c3032fc825 *** empty log message ***
claus
parents: 93
diff changeset
  1085
				"the collect collection gathers Rectangles"
360
claus
parents: 359
diff changeset
  1086
    collect := OrderedCollection new: 4.
186
a4c3032fc825 *** empty log message ***
claus
parents: 93
diff changeset
  1087
				"is it floating or on the edge?"
1
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1088
    (((((iRect top) ~= self top) 
186
a4c3032fc825 *** empty log message ***
claus
parents: 93
diff changeset
  1089
	 and: [ (iRect bottom) ~= self bottom ])
a4c3032fc825 *** empty log message ***
claus
parents: 93
diff changeset
  1090
	 and: [ (iRect left) ~= self left ])
a4c3032fc825 *** empty log message ***
claus
parents: 93
diff changeset
  1091
	 and: [ (iRect right) ~= self right ] )
a4c3032fc825 *** empty log message ***
claus
parents: 93
diff changeset
  1092
	ifTrue: "entirely in the center."
360
claus
parents: 359
diff changeset
  1093
	    [tmp := Rectangle origin: (Point x: iRect left y: self top)
claus
parents: 359
diff changeset
  1094
			      corner: iRect bottomRight.
186
a4c3032fc825 *** empty log message ***
claus
parents: 93
diff changeset
  1095
	     collect add: tmp.
360
claus
parents: 359
diff changeset
  1096
	     iRect := iRect merge: tmp].
1
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1097
    ((iRect left) ~= self left)
186
a4c3032fc825 *** empty log message ***
claus
parents: 93
diff changeset
  1098
	ifTrue:                 "doesn't touch left edge so make it touch"
360
claus
parents: 359
diff changeset
  1099
	    [tmp := Rectangle origin: (Point x: self left y: iRect top)
claus
parents: 359
diff changeset
  1100
			      corner: iRect bottomLeft.
186
a4c3032fc825 *** empty log message ***
claus
parents: 93
diff changeset
  1101
		 collect add: tmp.
a4c3032fc825 *** empty log message ***
claus
parents: 93
diff changeset
  1102
				"merge new (tmp) with overlap to keep track"
360
claus
parents: 359
diff changeset
  1103
		 iRect := iRect merge: tmp].
1
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1104
    ((iRect right) ~= self right)
186
a4c3032fc825 *** empty log message ***
claus
parents: 93
diff changeset
  1105
	ifTrue:                 "doesn't touch right edge so extend it"
360
claus
parents: 359
diff changeset
  1106
	    [tmp := Rectangle origin: iRect topRight
claus
parents: 359
diff changeset
  1107
			      corner: (Point x: self right y: iRect bottom).
186
a4c3032fc825 *** empty log message ***
claus
parents: 93
diff changeset
  1108
		 collect add: tmp.
360
claus
parents: 359
diff changeset
  1109
		 iRect := iRect merge: tmp].
77
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
  1110
    (((iRect left) ~= self left) or: [(iRect top) ~= self top])
186
a4c3032fc825 *** empty log message ***
claus
parents: 93
diff changeset
  1111
	ifTrue:                 "whole top part can be taken now"
360
claus
parents: 359
diff changeset
  1112
	    [tmp := Rectangle origin: self origin corner: iRect topRight.
186
a4c3032fc825 *** empty log message ***
claus
parents: 93
diff changeset
  1113
		 collect add: tmp].
77
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
  1114
    (((iRect right) ~= self right) or: [(iRect bottom) ~= self bottom])
186
a4c3032fc825 *** empty log message ***
claus
parents: 93
diff changeset
  1115
	ifTrue:                 "whole bottom open and can be taken"
360
claus
parents: 359
diff changeset
  1116
	    [tmp := Rectangle origin: iRect bottomLeft corner: self corner.
186
a4c3032fc825 *** empty log message ***
claus
parents: 93
diff changeset
  1117
		 collect add: tmp].
1
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1118
    ^collect
77
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
  1119
!
1
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1120
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1121
expandedBy:delta
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1122
    "return a new rectangle which is expanded in all directions
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1123
     by amount, a Point, Rectangle or Number"
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1124
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1125
    ^ self copy expandBy:delta
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1126
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1127
    "
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1128
     |r|
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1129
     r := Rectangle origin:10@10 corner:100@100.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1130
     r expandedBy:5.   
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1131
     r expandedBy:(5 @ 0).  
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1132
     r expandedBy:(10 @ 10).  
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1133
     r expandedBy:( 10@10 corner:20@20 )  
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1134
    "
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1135
!
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1136
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1137
insetBy: delta
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1138
    "return a new rectangle which is inset in all directions
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1139
     by delta, a Point, Rectangle or Number"
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1140
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1141
    |amountPoint deltaLeft deltaTop deltaWidth deltaHeight|
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1142
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1143
    delta isNumber ifTrue:[
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1144
	deltaLeft := deltaTop := delta.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1145
	deltaWidth := deltaHeight := delta * 2.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1146
    ] ifFalse:[
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1147
	delta isRectangle ifTrue:[
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1148
	    deltaLeft := delta left.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1149
	    deltaTop := delta top.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1150
	    deltaWidth := deltaLeft + delta right.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1151
	    deltaHeight := deltaTop + delta bottom
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1152
	] ifFalse:[
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1153
	    amountPoint := delta asPoint.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1154
	    deltaLeft := amountPoint x.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1155
	    deltaTop := amountPoint y.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1156
	    deltaWidth := deltaLeft * 2.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1157
	    deltaHeight := deltaTop * 2.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1158
	]
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1159
    ].
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1160
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1161
    ^ Rectangle left:(left + deltaLeft)
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1162
		 top:(top + deltaTop)
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1163
	       width:(width - deltaWidth)
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1164
	      height:(height - deltaHeight)
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1165
    "
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1166
     |r|
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1167
     r := Rectangle origin:10@10 corner:100@100.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1168
     r insetBy:5.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1169
     r insetBy:(5 @ 0).
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1170
     r insetBy:(10 @ 10).
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1171
     r insetBy:( 10@10 corner:20@20 )
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1172
    "
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1173
!
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1174
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1175
insetOriginBy:originDelta cornerBy:cornerDelta
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1176
    "return a new rectangle which is inset by originDelta 
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1177
     and cornerDelta; both may be instances of Point or Number"
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1178
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1179
    ^ Rectangle
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1180
	origin:(left @ top) + originDelta asPoint
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1181
	corner:(self corner - cornerDelta asPoint)
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1182
    "
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1183
     |r|
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1184
     r := Rectangle origin:10@10 corner:100@100.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1185
     r insetOriginBy:5 cornerBy:10. 
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1186
     r insetOriginBy:10@5 cornerBy:10.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1187
     r insetOriginBy:10 cornerBy:10@5. 
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1188
     r insetOriginBy:10@10 cornerBy:20@20.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1189
    "
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1190
!
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1191
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1192
intersect:aRectangle
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1193
    "return a new rectangle covering the intersection of the receiver
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1194
     and the argument, aRectangle.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1195
     the rectangles must intersect for a valid return"
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1196
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1197
    ^ Rectangle left:(left max:(aRectangle left))
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1198
	       right:((left + width) min:(aRectangle right))
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1199
		 top:(top max:(aRectangle top))
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1200
	      bottom:((top + height) min:(aRectangle bottom))
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1201
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1202
    "
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1203
     |r1 r2|
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1204
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1205
     r1 := Rectangle origin:10@10 corner:100@100.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1206
     r2 := Rectangle origin:50@50 corner:150@75.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1207
     r1 intersect:r2
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1208
    "
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1209
!
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1210
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1211
merge:aRectangle
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1212
    "return a new rectangle covering both the receiver 
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1213
     and the argument, aRectangle"
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1214
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1215
    ^ Rectangle left:(left min:(aRectangle left))
4859
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1216
               right:((left + width) max:(aRectangle right))
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1217
                 top:(top min:(aRectangle top))
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1218
              bottom:((top + height) max:(aRectangle bottom))
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1219
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1220
    "
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1221
     (Rectangle origin:10@10 corner:100@100)
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1222
         merge:(Rectangle origin:20@20 corner:110@110)
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1223
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1224
     (Rectangle origin:10@10 corner:100@100)
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1225
         merge:(Rectangle origin:20@20 corner:100@100)
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1226
    "
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1227
!
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1228
77
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
  1229
nonIntersections:aRectangle
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
  1230
    "this is the same as areasOutside: - for ST/V compatibility only"
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
  1231
6c38ca59927f *** empty log message ***
claus
parents: 59
diff changeset
  1232
    ^ self areasOutside:aRectangle
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1233
!
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1234
4859
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1235
quickMerge: aRectangle 
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1236
    "return the receiver if it encloses the given rectangle,
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1237
     or the merge of the two rectangles if it doesn't. 
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1238
     This method is an optimization to reduce extra rectangle creations."
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1239
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1240
    | useRcvr rLeft rTop rRight rBottom Origin rCorner minX maxX minY maxY |
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1241
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1242
    useRcvr := true.
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1243
    rLeft := aRectangle left.
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1244
    rTop := aRectangle top.
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1245
    rRight := aRectangle right.
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1246
    rBottom := aRectangle bottom.
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1247
    minX := rLeft < left ifTrue: [useRcvr := false. rLeft] ifFalse: [left].
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1248
    maxX := rRight > self right ifTrue: [useRcvr := false. rRight] ifFalse: [self right].
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1249
    minY := rTop < top ifTrue: [useRcvr := false. rTop] ifFalse: [top].
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1250
    maxY := rBottom > self bottom ifTrue: [useRcvr := false. rBottom] ifFalse: [self bottom].
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1251
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1252
    useRcvr ifTrue: [^ self].
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1253
    ^ Rectangle left:minX top:minY right:maxX bottom:maxY.
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1254
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1255
    "
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1256
     (Rectangle origin:10@10 corner:100@100)
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1257
         quickMerge:(Rectangle origin:20@20 corner:110@110)
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1258
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1259
     (Rectangle origin:10@10 corner:100@100)
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1260
         quickMerge:(Rectangle origin:20@20 corner:100@100)
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1261
    "
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1262
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1263
!
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1264
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1265
rounded
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1266
    "return a copy of the receiver with rounded coordinates"
1
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1267
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1268
    ^ Rectangle left:(left rounded) 
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1269
		 top:(top rounded)
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1270
	       width:(width rounded) 
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1271
	      height:(height rounded)
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1272
!
356
claus
parents: 329
diff changeset
  1273
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1274
scaledBy:scale
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1275
    "return a new rectangle which is the receiver
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1276
     scaled by scale"
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1277
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1278
    |scalePoint sx sy|
356
claus
parents: 329
diff changeset
  1279
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1280
    scalePoint := scale asPoint.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1281
    sx := scalePoint x.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1282
    sy := scalePoint y.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1283
    ^ Rectangle left:left * sx
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1284
		 top:top * sy
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1285
	       width:(width * sx)
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1286
	      height:(height * sy)
356
claus
parents: 329
diff changeset
  1287
    "
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1288
     (Rectangle origin:10@10 corner:50@50) scaledBy:2   
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1289
    "
356
claus
parents: 329
diff changeset
  1290
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1291
    "its NOT destructive:"
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1292
    "
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1293
     |r1 r2|
356
claus
parents: 329
diff changeset
  1294
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1295
     r1 := Rectangle origin:10@10 corner:50@50.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1296
     r2 := r1 scaledBy:2.    
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1297
     r1  
356
claus
parents: 329
diff changeset
  1298
    "
claus
parents: 329
diff changeset
  1299
!
claus
parents: 329
diff changeset
  1300
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1301
translatedBy:amount
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1302
    "return a new rectangle which is translated (i.e. moved)
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1303
     by amount, aPoint or Number"
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1304
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1305
    |amountPoint|
356
claus
parents: 329
diff changeset
  1306
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1307
    amountPoint := amount asPoint.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1308
    ^ Rectangle left:(left + amountPoint x) 
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1309
		 top:(top + amountPoint y)
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1310
	       width:width
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1311
	      height:height
356
claus
parents: 329
diff changeset
  1312
    "
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1313
     (Rectangle origin:10@10 corner:50@50) translatedBy:10
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1314
    "
356
claus
parents: 329
diff changeset
  1315
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1316
    "its NOT destructive:"
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1317
    "
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1318
     |r1 r2|
356
claus
parents: 329
diff changeset
  1319
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1320
     r1 := Rectangle origin:10@10 corner:50@50.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1321
     r2 := r1 translatedBy:10.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1322
     r1 
356
claus
parents: 329
diff changeset
  1323
    "
claus
parents: 329
diff changeset
  1324
! !
claus
parents: 329
diff changeset
  1325
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1326
!Rectangle methodsFor:'testing'!
1
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1327
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1328
contains:aRectangle
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1329
    "return true, if the argument, aRectangle is equal to or
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1330
     is contained fully within the receiver"
1
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1331
1149
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1332
%{  /* NOCONTEXT */
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1333
    /*
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1334
     * claus: this may be often called by objectView
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1335
     * the primitive code below (although lookung ugly)
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1336
     * speeds that up by almost a factor of 2 ...
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1337
     */
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1338
    OBJ slf = self;
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1339
    OBJ rct = aRectangle;
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1340
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1341
    if (__isNonNilObject(rct) 
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1342
     && __qClass(rct) == Rectangle) {
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1343
        OBJ r_l, r_w, r_t, r_h, l, w, t, h;
2770
7c4ab842329f alpha changes
Claus Gittinger <cg@exept.de>
parents: 2441
diff changeset
  1344
        INT r_ir, r_il, r_ib, r_it;
7c4ab842329f alpha changes
Claus Gittinger <cg@exept.de>
parents: 2441
diff changeset
  1345
        INT il, it, ir, ib, iw, ih;
1149
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1346
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1347
        r_l = __OINST(rct, left);
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1348
        l = __OINST(slf, left);
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1349
        if (__bothSmallInteger(r_l, l)) {
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1350
#ifndef POSITIVE_ADDRESSES      /* tag in low-bit */
2770
7c4ab842329f alpha changes
Claus Gittinger <cg@exept.de>
parents: 2441
diff changeset
  1351
            il = (INT)(l);
7c4ab842329f alpha changes
Claus Gittinger <cg@exept.de>
parents: 2441
diff changeset
  1352
            r_il = (INT)(r_l);
1149
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1353
#else
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1354
            il = __intVal(l);
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1355
            r_il = __intVal(r_l);
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1356
#endif
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1357
            if (il > r_il) { RETURN (false); }   /* left > aRectangle left */
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1358
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1359
            r_t = __OINST(rct, top);
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1360
            t = __OINST(slf, top);
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1361
            if (__bothSmallInteger(r_t, t)) {
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1362
#ifndef POSITIVE_ADDRESSES      /* tag in low-bit */
2770
7c4ab842329f alpha changes
Claus Gittinger <cg@exept.de>
parents: 2441
diff changeset
  1363
                it = (INT)(t);
7c4ab842329f alpha changes
Claus Gittinger <cg@exept.de>
parents: 2441
diff changeset
  1364
                r_it = (INT)(r_t);
1149
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1365
#else
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1366
                it = __intVal(t);
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1367
                r_it = __intVal(r_t);
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1368
#endif
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1369
                if (it > r_it) { RETURN (false); }   /* top > aRectangle top */
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1370
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1371
                r_w = __OINST(rct, width);
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1372
                w = __OINST(slf, width);
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1373
                if (__bothSmallInteger(r_w, w)) {
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1374
#ifndef POSITIVE_ADDRESSES      /* tag in low-bit */
2770
7c4ab842329f alpha changes
Claus Gittinger <cg@exept.de>
parents: 2441
diff changeset
  1375
                    ir = il + (INT)(w);
7c4ab842329f alpha changes
Claus Gittinger <cg@exept.de>
parents: 2441
diff changeset
  1376
                    r_ir = r_il + (INT)(r_w);
1149
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1377
#else
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1378
                    ir = il + __intVal(w);
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1379
                    r_ir = r_il + __intVal(r_w);
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1380
#endif
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1381
                    if (ir < r_ir) { RETURN (false); }   /* (left + width) < aRectangle right */
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1382
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1383
                    r_h = __OINST(rct, height);
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1384
                    h = __OINST(slf, height);
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1385
                    if (__bothSmallInteger(r_h, h)) {
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1386
#ifndef POSITIVE_ADDRESSES      /* tag in low-bit */
2770
7c4ab842329f alpha changes
Claus Gittinger <cg@exept.de>
parents: 2441
diff changeset
  1387
                        ib = it + (INT)(h);
7c4ab842329f alpha changes
Claus Gittinger <cg@exept.de>
parents: 2441
diff changeset
  1388
                        r_ib = r_it + (INT)(r_h);
1149
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1389
#else
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1390
                        ib = it + __intVal(h);
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1391
                        r_ib = r_it + __intVal(r_h);
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1392
#endif
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1393
                        if (ib < r_ib) { RETURN (false); }   /* (top + height) < aRectangle bottom */
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1394
                        RETURN (true);
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1395
                    }
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1396
                }
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1397
            }
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1398
        }
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1399
    }
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1400
%}.
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1401
    (left <= aRectangle left) ifTrue:[
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1402
      ((left + width) >= aRectangle right) ifTrue:[
1149
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1403
        (top <= aRectangle top) ifTrue:[
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1404
          ((top + height) >= aRectangle bottom) ifTrue:[
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1405
            ^ true
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1406
          ]
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1407
        ]
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1408
      ]
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1409
    ].
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1410
    ^ false
1149
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1411
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1412
    "
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1413
     (0@0 corner:100@100) contains:(10@10 corner:90@90) 
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1414
     (0@0 corner:100@100) contains:(10@10 corner:100@100)  
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1415
     (0@0 corner:100@100) contains:(10@10 corner:110@100) 
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1416
     (0@0 corner:100@100) contains:(10@10 corner:100@110) 
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1417
     (10@10 corner:100@100) contains:(0@10 corner:100@100) 
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1418
    "
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1419
!
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1420
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1421
containsPoint:aPoint
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1422
    "return true, if the argument, aPoint is contained in the receiver"
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1423
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1424
    |px py|
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1425
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1426
    px := aPoint x.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1427
    (px < left)           ifTrue:[^ false].
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1428
    (px > (left + width)) ifTrue:[^ false].
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1429
    py := aPoint y.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1430
    (py < top)            ifTrue:[^ false].
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1431
    (py > (top + height)) ifTrue:[^ false].
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1432
    ^ true
1
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1433
!
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1434
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1435
containsPointX:x y:y
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1436
    "return true, if the point defined by x@y is contained in the receiver.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1437
     This is the same as containsPoint:, but can be used if the coordinates
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1438
     are already available as separate numbers to avoid useless creation of a
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1439
     temporary point."
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1440
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1441
    (x < left)           ifTrue:[^ false].
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1442
    (x > (left + width)) ifTrue:[^ false].
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1443
    (y < top)            ifTrue:[^ false].
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1444
    (y > (top + height)) ifTrue:[^ false].
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1445
    ^ true
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1446
!
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1447
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1448
intersects:aRectangle
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1449
    "return true, if the intersection between the argument, aRectangle
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1450
     and the receiver is not empty"
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1451
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1452
    |b r|
1
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1453
1149
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1454
%{  /* NOCONTEXT */
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1455
    /*
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1456
     * claus: this is one of the mostly called methods in
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1457
     * the objectView - the primitive code below (although lookung ugly)
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1458
     * speeds up drawing by almost a factor of 2 ...
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1459
     */
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1460
    OBJ slf = self;
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1461
    OBJ rct = aRectangle;
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1462
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1463
    if (__isNonNilObject(rct) 
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1464
     && __qClass(rct) == Rectangle) {
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1465
        OBJ r_l, r_w, r_t, r_h, l, w, t, h;
2770
7c4ab842329f alpha changes
Claus Gittinger <cg@exept.de>
parents: 2441
diff changeset
  1466
        INT r_ir, r_il, r_ib, r_it;
7c4ab842329f alpha changes
Claus Gittinger <cg@exept.de>
parents: 2441
diff changeset
  1467
        INT il, it, ir, ib, iw, ih;
1149
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1468
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1469
        r_l = __OINST(rct, left);
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1470
        r_w = __OINST(rct, width);
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1471
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1472
        if (__bothSmallInteger(r_l, r_w)) {
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1473
            r_t = __OINST(rct, top);
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1474
            r_h = __OINST(rct, height);
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1475
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1476
            l = __OINST(slf, left);
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1477
            w = __OINST(slf, width);
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1478
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1479
            if (__bothSmallInteger(l, w)) {
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1480
                t = __OINST(slf, top);
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1481
                h = __OINST(slf, height);
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1482
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1483
#ifndef POSITIVE_ADDRESSES      /* tag in low-bit */
2770
7c4ab842329f alpha changes
Claus Gittinger <cg@exept.de>
parents: 2441
diff changeset
  1484
                r_il = (INT)(r_l);
7c4ab842329f alpha changes
Claus Gittinger <cg@exept.de>
parents: 2441
diff changeset
  1485
                r_ir = r_il + (INT)(r_w) - 1;
7c4ab842329f alpha changes
Claus Gittinger <cg@exept.de>
parents: 2441
diff changeset
  1486
                il = (INT)(l);
1149
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1487
                if (r_ir < il) { RETURN (false); }
2770
7c4ab842329f alpha changes
Claus Gittinger <cg@exept.de>
parents: 2441
diff changeset
  1488
                ir = il + (INT)(w) - 1;
1149
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1489
                if (r_il > ir) { RETURN (false); }
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1490
#else                           /* tag in hi-bit */
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1491
                r_il = __intVal(r_l);
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1492
                r_ir = r_il + __intVal(r_w);        /* aRectangle right */
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1493
                il = __intVal(l);
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1494
                if (r_ir < il) { RETURN (false); }  /* (aRectangle right) < left */
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1495
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1496
                ir = il + __intVal(w);
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1497
                if (r_il > ir) { RETURN (false); }   /* (aRectangle left) > r */
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1498
#endif
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1499
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1500
                if (__bothSmallInteger(r_t, r_h)) {
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1501
                    if (__bothSmallInteger(t, h)) {
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1502
#ifndef POSITIVE_ADDRESSES
2770
7c4ab842329f alpha changes
Claus Gittinger <cg@exept.de>
parents: 2441
diff changeset
  1503
                        r_it = (INT)(r_t);
7c4ab842329f alpha changes
Claus Gittinger <cg@exept.de>
parents: 2441
diff changeset
  1504
                        r_ib = r_it + (INT)(r_h) - 1; /* aRectangle bottom */
7c4ab842329f alpha changes
Claus Gittinger <cg@exept.de>
parents: 2441
diff changeset
  1505
                        it = (INT)(t);
1149
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1506
                        if (r_ib < it) { RETURN (false); } /* (aRectangle bottom) < top */
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1507
2770
7c4ab842329f alpha changes
Claus Gittinger <cg@exept.de>
parents: 2441
diff changeset
  1508
                        ib = it + (INT)(h) - 1;
1149
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1509
                        if (r_it > ib) { RETURN (false); } /* (aRectangle top) > b */
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1510
#else
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1511
                        r_it = __intVal(r_t);
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1512
                        r_ib = r_it + __intVal(r_h); /* aRectangle bottom */
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1513
                        it = __intVal(t);
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1514
                        if (r_ib < it) { RETURN (false); } /* (aRectangle bottom) < top */
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1515
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1516
                        ib = it + __intVal(h);
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1517
                        if (r_it > ib) { RETURN (false); } /* (aRectangle top) > b */
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1518
#endif
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1519
                        RETURN (true);
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1520
                    }
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1521
                }
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1522
            }
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1523
        }
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1524
    }
69b30e3494fa added specially tuned code for #intersects: & #contains: (for objectView performance)
Claus Gittinger <cg@exept.de>
parents: 1133
diff changeset
  1525
%}.
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1526
    (aRectangle right)  < left ifTrue:[^ false].
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1527
    (aRectangle bottom) < top  ifTrue:[^ false].
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1528
    r := left + width.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1529
    (aRectangle left)   > r    ifTrue:[^ false].
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1530
    b := top + height.
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1531
    (aRectangle top)    > b    ifTrue:[^ false].
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1532
    ^ true
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1533
!
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1534
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1535
isContainedIn:aRectangle
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1536
    "return true, if the receiver is fully contained within 
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1537
     the argument, aRectangle"
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1538
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1539
    (aRectangle left <= left) ifTrue:[
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1540
      (aRectangle right >= (left + width)) ifTrue:[
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1541
	(aRectangle top <= top) ifTrue:[
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1542
	  (aRectangle bottom >= (top + height)) ifTrue:[
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1543
	    ^ true
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1544
	  ]
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1545
	]
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1546
      ]
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1547
    ].
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1548
    ^ false
1
a27a279701f8 Initial revision
claus
parents:
diff changeset
  1549
! !
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1550
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1551
!Rectangle class methodsFor:'documentation'!
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1552
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1553
version
4859
592f07591ca2 added #quickMerge:;
Claus Gittinger <cg@exept.de>
parents: 3488
diff changeset
  1554
    ^ '$Header: /cvs/stx/stx/libbasic/Rectangle.st,v 1.59 1999-10-06 20:22:28 cg Exp $'
637
f71df465819c version at the end
Claus Gittinger <cg@exept.de>
parents: 530
diff changeset
  1555
! !