"
COPYRIGHT (c) 1991 by Claus Gittinger
All Rights Reserved
This software is furnished under a license and may be used
only in accordance with the terms of that license and with the
inclusion of the above copyright notice. This software may not
be provided or otherwise made available to, or used by, any
other person. No title to or ownership of the software is
hereby transferred.
"
SimpleView subclass:#VariablePanel
instanceVariableNames:'barHeight barWidth separatingLine shadowForm lightForm showHandle
handlePosition handleColor handleStyle handleLevel noColor
trackLine redrawLocked orientation handleLabels knobHeight'
classVariableNames:'DefaultShowHandle DefaultHandleStyle DefaultHandlePosition
DefaultTrackingLine DefaultSeparatingLine DefaultHandleColor
DefaultHandleLevel DefaultVCursor DefaultHCursor'
poolDictionaries:''
category:'Views-Layout'
!
!VariablePanel class methodsFor:'documentation'!
copyright
"
COPYRIGHT (c) 1991 by Claus Gittinger
All Rights Reserved
This software is furnished under a license and may be used
only in accordance with the terms of that license and with the
inclusion of the above copyright notice. This software may not
be provided or otherwise made available to, or used by, any
other person. No title to or ownership of the software is
hereby transferred.
"
!
documentation
"
a View to separate its subviews vertically by a movable bar;
the size-ratios of the subviews can be changed by moving this bar.
In order to correctly setup this kind of view, the subviews must
be created with a relative origin & relative corner.
The panel does not verify the relative subview bounds;
therefore, it is your responsibility to set those relative sizes to fit
according the orientation (see bad example below).
The bar-handle is either an exposed knob (style == #motif)
or the form defined in Scroller (style ~~ #motif)
or nothing.
Typically creation is done as:
p := VariablePanel in:superView.
p orientation:#vertical.
v1 := <someViewClass> origin:0.0 @ 0.0
corner:1.0 @ 0.5
in:p.
v2 := <someViewClass> origin:0.0 @ 0.5
corner:1.0 @ 0.8
in:p.
v3 := <someViewClass> origin:0.0 @ 0.8
corner:1.0 @ 1.0
in:p.
The two subclasses VariableHorizontalPanel and VariableVerticalPanel
preset the orientation. They are a kept for backward compatibility
(in previous versions, there used to be no common VariablePanel (super-) class).
Notice: if it is required to insert a fixed-size view in the panel,
use an extra view & insets, and place the subview into that extra view.
see examples.
[instance Variables:]
barHeight <Integer> the height of the bar (for verticalPanels)
barWidth <Integer> the width of the bar (for horizontalPanels)
separatingLine <Boolean> show a separating line (as in motif style)
shadowForm <Image/Form> form (shadow part) drawn as handle - if nonNil
lightForm <Image/Form> form (light part) drawn as handle - if nonNil
showHandle <Boolean> if false, no handle is drawn
handlePosition <Symbol> where is the handle - one of #left, #center, #right
handleColor <Color> inside color of handle - defaults to viewBackground
handleStyle <Symbol> type of handle; one of #next, #motif or nil
handleLevel <Integer> 3D level of handle (only valid if no form is given)
trackLine <Boolean> if true, an inverted line is drawn for tracking;
otherwise, the whole bar is inverted.
redrawLocked internal - locks redraws while tracking
orientation <Symbol> one of #horizontal / #vertical
[styleSheet values:]
variablePanelShowHandle true/false - should a handle be shown (default:true)
variablePanelHandleStyle #next / #motif / nil (special handles)
variablePanelHandlePosition #left / #center / #right (default:#right)
variablePanelHandleLevel 3D level of heandle (default:2)
variablePanelTrackingLine when moved, track an inverted line (as in motif)
as opposed to tracking the whole bar (default:false)
variablePanelSeparatingLine draw a separating line in the bar as in motif (default:false)
variablePanelHandleColor color of the handle. (default:Black)
variablePanelHandleEnteredColor color of the handle when the pointer is in the bar (default:nil)
[see also:]
PanelView
[author:]
Claus Gittinger
"
!
examples
"
example (notice that the subviews MUST have relative bounds):
[exBegin]
|top p v1 v2 v3|
top := StandardSystemView new.
top extent:300@300.
p := VariablePanel
origin:0.0 @ 0.0
corner:1.0 @ 1.0
in:top.
p orientation:#vertical.
v1 := View origin:0.0@0.0 corner:1.0@(1/2) in:p.
v2 := View origin:0.0@(1/2) corner:1.0@(2/3) in:p.
v3 := View origin:0.0@(2/3) corner:1.0@1.0 in:p.
v1 viewBackground:(Color red).
v2 viewBackground:(Color green).
v3 viewBackground:(Color yellow).
top open
[exEnd]
change the handles level:
[exBegin]
|top p v1 v2 v3|
top := StandardSystemView new.
top extent:300@300.
p := VariablePanel
origin:0.0 @ 0.0
corner:1.0 @ 1.0
in:top.
p orientation:#vertical.
p handleLevel:-1.
v1 := View origin:0.0@0.0 corner:1.0@(1/3) in:p.
v2 := View origin:0.0@(1/3) corner:1.0@(2/3) in:p.
v3 := View origin:0.0@(2/3) corner:1.0@1.0 in:p.
v1 viewBackground:(Color red).
v2 viewBackground:(Color green).
v3 viewBackground:(Color yellow).
top open
[exEnd]
change the handles style to nil makes it invisible:
[exBegin]
|top p v1 v2 v3|
top := StandardSystemView new.
top extent:300@300.
p := VariablePanel
origin:0.0 @ 0.0
corner:1.0 @ 1.0
in:top.
p orientation:#vertical.
p handleStyle:nil.
v1 := View origin:0.0@0.0 corner:1.0@(1/3) in:p.
v2 := View origin:0.0@(1/3) corner:1.0@(2/3) in:p.
v3 := View origin:0.0@(2/3) corner:1.0@1.0 in:p.
v1 viewBackground:(Color red).
v2 viewBackground:(Color green).
v3 viewBackground:(Color yellow).
top open
[exEnd]
define your own handle (-bitmap):
[exBegin]
|top p v1 v2 v3|
top := StandardSystemView new.
top extent:300@300.
p := VariablePanel
origin:0.0 @ 0.0
corner:1.0 @ 1.0
in:top.
p orientation:#vertical.
p handleImage:(Image fromFile:'bitmaps/ScrollLt.8.xbm').
v1 := View origin:0.0@0.0 corner:1.0@(1/3) in:p.
v2 := View origin:0.0@(1/3) corner:1.0@(2/3) in:p.
v3 := View origin:0.0@(2/3) corner:1.0@1.0 in:p.
v1 viewBackground:(Color red).
v2 viewBackground:(Color green).
v3 viewBackground:(Color yellow).
top open
[exEnd]
another handle-bitmap:
[exBegin]
|top p v1 v2 v3|
top := StandardSystemView new.
top extent:300@300.
p := VariablePanel
origin:0.0 @ 0.0
corner:1.0 @ 1.0
in:top.
p orientation:#vertical.
p handleImage:(Form width:9
height:11
fromArray:#(
2r00000000 2r00000000
2r00001000 2r00000000
2r00011100 2r00000000
2r00111110 2r00000000
2r01111111 2r00000000
2r00000000 2r00000000
2r01111111 2r00000000
2r00111110 2r00000000
2r00011100 2r00000000
2r00001000 2r00000000
2r00000000 2r00000000
)
).
v1 := View origin:0.0@0.0 corner:1.0@(1/3) in:p.
v2 := View origin:0.0@(1/3) corner:1.0@(2/3) in:p.
v3 := View origin:0.0@(2/3) corner:1.0@1.0 in:p.
v1 viewBackground:(Color red).
v2 viewBackground:(Color green).
v3 viewBackground:(Color yellow).
top open
[exEnd]
placing scrolled and unscrolled views into a variablePanel:
[exBegin]
|top p v1 v2 v3|
top := StandardSystemView new.
top extent:300@300.
p := VariablePanel
origin:0.0 @ 0.0
corner:1.0 @ 1.0
in:top.
p orientation:#vertical.
v1 := ScrollableView for:SelectionInListView in:p.
v1 origin:0.0 @ 0.0 corner:1.0 @ 0.5.
v1 list:(FileDirectory directoryNamed:'/etc') contents.
v1 action:[:selNr |
|fullName stream text|
fullName := '/etc/' , v1 selectionValue.
stream := fullName asFilename readStream.
stream notNil ifTrue:[
text := stream contents.
v2 contents:text.
v3 contents:text
]
].
v2 := TextView origin:0.0 @ 0.5 corner:1.0 @ 0.8 in:p.
v3 := ScrollableView for:TextView in:p.
v3 origin:0.0 @ 0.8 corner:1.0 @ 1.0.
top open
[exEnd]
dynamically adding/removing views:
[exBegin]
|top p v1 v2 b|
top := StandardSystemView new.
top extent:300@300.
b := Toggle label:'show' in:top.
b showLamp:false.
b origin:0.0 @ 0.0 corner:(1.0 @ 40).
b action:[:state |
state ifTrue:[
b label:'hide'.
v1 origin:0.0 @ 0.0 corner:1.0 @ 0.5.
v2 := ScrollableView for:EditTextView.
v2 origin:0.0 @ 0.5 corner:1.0 @ 1.0.
v2 contents:'another text'.
p addSubView:v2.
v2 realize.
] ifFalse:[
b label:'show'.
v2 destroy.
v1 origin:0.0 @ 0.0 corner:1.0 @ 1.0
]
].
p := VariablePanel
origin:0.0 @ 0.0
corner:1.0 @ 1.0
in:top.
p orientation:#vertical.
p topInset:50.
v1 := ScrollableView for:EditTextView in:p.
v1 origin:0.0 @ 0.0 corner:1.0 @ 1.0.
v1 contents:'some text'.
top open
[exEnd]
dynamically flipping orientation:
Notice: you have to change the relative bounds of the subviews first.
[exBegin]
|top p v1 v2 b|
top := StandardSystemView new.
top extent:300@300.
b := Toggle label:'flip' in:top.
b showLamp:false.
b origin:0.0 @ 0.0 corner:(1.0 @ 40).
b action:[:state |
state ifTrue:[
v1 origin:0.0 @ 0.0 corner:0.5 @ 1.0.
v2 origin:0.5 @ 0.0 corner:1.0 @ 1.0.
p orientation:#horizontal.
] ifFalse:[
v1 origin:0.0 @ 0.0 corner:1.0 @ 0.5.
v2 origin:0.0 @ 0.5 corner:1.0 @ 1.0.
p orientation:#vertical.
].
].
p := VariablePanel
origin:0.0 @ 0.0
corner:1.0 @ 1.0
in:top.
p orientation:#vertical.
p topInset:50.
v1 := ScrollableView for:EditTextView in:p.
v1 origin:0.0 @ 0.0 corner:1.0 @ 0.5.
v1 contents:'some text'.
v2 := ScrollableView for:EditTextView in:p.
v2 origin:0.0 @ 0.5 corner:1.0 @ 1.0.
v2 contents:'another text'.
top open
[exEnd]
combining fix-size with variable size:
(need 3 extra frame-views to place the extra labels into)
[exBegin]
|top p v1 l1 v2 l2 v3 l3 f1 f2 f3|
top := StandardSystemView new.
top extent:300@300.
p := VariablePanel
origin:0.0 @ 0.0
corner:1.0 @ 1.0
in:top.
p orientation:#vertical.
f1 := View origin:0.0@0.0 corner:1.0@0.3 in:p.
f2 := View origin:0.0@0.3 corner:1.0@0.6 in:p.
f3 := View origin:0.0@0.6 corner:1.0@1.0 in:p.
v1 := View origin:0.0 @ 0.0 corner:1.0 @ 1.0 in:f1.
v2 := View origin:0.0 @ 0.0 corner:1.0 @ 1.0 in:f2.
v3 := View origin:0.0 @ 0.0 corner:1.0 @ 1.0 in:f3.
l1 := Label label:'sub1' in:f1.
l2 := Label label:'sub2' in:f2.
l3 := Label label:'sub3' in:f3.
l1 origin:0.0 @ 0.0 corner:1.0 @ 0.0 ;
bottomInset:(l1 preferredExtent y negated).
l2 origin:0.0 @ 0.0 corner:1.0 @ 0.0 ;
bottomInset:(l2 preferredExtent y negated).
l3 origin:0.0 @ 0.0 corner:1.0 @ 0.0 ;
bottomInset:(l3 preferredExtent y negated).
v1 topInset:(l1 preferredExtent y); level:-1.
v2 topInset:(l2 preferredExtent y); level:-1.
v3 topInset:(l3 preferredExtent y); level:-1.
v1 viewBackground:(Color red).
v2 viewBackground:(Color green).
v3 viewBackground:(Color yellow).
top open
[exEnd]
VerticalPansels allow a label to be associated with the
handles; this looks much like the above, but is slightly
more compact. Notice, no label can be placed above the first
view - it has no handle.
[exBegin]
|top p v1 v2 v3|
top := StandardSystemView new.
top extent:300@300.
p := VariablePanel
origin:0.0 @ 0.0
corner:1.0 @ 1.0
in:top.
p orientation:#vertical.
p handleLabels:#('ignored' 'sub2' 'sub3').
v1 := View origin:0.0@0.0 corner:1.0@0.3 in:p.
v2 := View origin:0.0@0.3 corner:1.0@0.6 in:p.
v3 := View origin:0.0@0.6 corner:1.0@1.0 in:p.
v1 viewBackground:(Color red).
v2 viewBackground:(Color green).
v3 viewBackground:(Color yellow).
top open
[exEnd]
handle labels can be more than strings ....
(however, they should have about the same height, since
the largest defines heights of all bars;
retry the example below with a larger bitmap image ...)
[exBegin]
|top e p v1 v2 v3|
top := StandardSystemView new.
top extent:300@300.
p := VariablePanel
origin:0.0 @ 0.0
corner:1.0 @ 1.0
in:top.
p orientation:#vertical.
e := Array with:#bold
with:#color->Color red.
p handleLabels:(Array with:nil
with:('bold and red' asText emphasizeAllWith:e)
with:(Image fromFile:'ScrollRt.xbm')).
v1 := View origin:0.0@0.0 corner:1.0@0.3 in:p.
v2 := View origin:0.0@0.3 corner:1.0@0.6 in:p.
v3 := View origin:0.0@0.6 corner:1.0@1.0 in:p.
v1 viewBackground:(Color red).
v2 viewBackground:(Color green).
v3 viewBackground:(Color yellow).
top open
[exEnd]
BAD EXAMPLE (wrong relative sizes - repaired on handle move):
[exBegin]
|top p v1 v2 v3|
top := StandardSystemView new.
top extent:300@300.
p := VariablePanel
origin:0.0 @ 0.0
corner:1.0 @ 1.0
in:top.
p orientation:#vertical.
v1 := View origin:0.0 @ 0.0 corner:1.0 @ (1/4) in:p.
v2 := View origin:0.0 @ (1/2) corner:1.0 @ (3/4) in:p.
v3 := View origin:0.0 @ (3/4) corner:1.0 @ 1.0 in:p.
v1 viewBackground:(Color red).
v2 viewBackground:(Color green).
v3 viewBackground:(Color yellow).
top open
[exEnd]
"
! !
!VariablePanel class methodsFor:'defaults'!
lightFormOn:aDisplay
"use same handle as Scroller"
^ Scroller handleLightFormOn:aDisplay
!
shadowFormOn:aDisplay
"use same handle as Scroller"
^ Scroller handleShadowFormOn:aDisplay
!
updateStyleCache
"extract values from the styleSheet and cache them in class variables"
<resource: #style (#variablePanelShowHandle #variablePanelHandleStyle
#variablePanelHandlePosition #variablePanelHandleLevel
#variablePanelTrackingLine
#variablePanelSeparatingLine #variablePanelHandleColor)>
DefaultShowHandle := StyleSheet at:'variablePanelShowHandle' default:true.
DefaultHandleStyle := StyleSheet at:'variablePanelHandleStyle'.
DefaultHandlePosition := StyleSheet at:'variablePanelHandlePosition' default:#right.
DefaultHandleLevel := StyleSheet at:'variablePanelHandleLevel' default:2.
DefaultTrackingLine := StyleSheet at:'variablePanelTrackingLine' default:false.
DefaultSeparatingLine := StyleSheet at:'variablePanelSeparatingLine' default:false.
DefaultHandleColor := StyleSheet colorAt:'variablePanelHandleColor' default:Black.
"Modified: 1.3.1996 / 13:51:24 / cg"
! !
!VariablePanel methodsFor:'accessing'!
addSubView:aView
"a view is added; adjust other subviews sizes"
super addSubView:aView.
realized ifTrue:[
self resizeSubviews.
]
"Created: 17.1.1996 / 22:41:00 / cg"
"Modified: 24.2.1996 / 19:05:05 / cg"
!
orientation
"return my orientation; either #horizontal or #vertical"
^ orientation
"Modified: 6.3.1996 / 18:08:45 / cg"
!
orientation:aSymbol
"change my orientation; aSymbol must be one of #horizontal or #vertical.
Changing implies a resize of my subViews."
aSymbol ~~ orientation ifTrue:[
orientation := aSymbol.
self initCursor.
self anyNonRelativeSubviews ifTrue:[
self setupSubviews
].
shown ifTrue:[
self cursor:cursor.
self sizeChanged:nil.
self invalidate.
]
]
"Modified: 29.5.1996 / 16:22:35 / cg"
!
removeSubView:aView
"a view is removed; adjust other subviews sizes"
super removeSubView:aView.
shown ifTrue:[
(superView isNil or:[superView shown]) ifTrue:[
self setupSubviews
]
]
! !
!VariablePanel methodsFor:'accessing-look'!
barHeight
"return the height of the separating bar"
^ barHeight
!
barHeight:nPixel
"set the height of the separating bar"
barHeight := nPixel.
"if screen is very low-res, make certain bar is visible and catchable"
(barHeight < 4) ifTrue:[
barHeight := 4
].
"make it even, so spacing is equally spreadable among subviews"
barHeight odd ifTrue:[
barHeight := barHeight + 1
]
"Modified: 7.11.1996 / 20:07:11 / cg"
!
handleImage:aBitmapOrImage
"define the handles image"
shadowForm := aBitmapOrImage.
lightForm := nil.
self computeBarHeight.
"Created: 7.11.1996 / 20:21:10 / cg"
"Modified: 7.11.1996 / 20:27:22 / cg"
!
handleLabels:aCollectionOfLabels
orientation == #horizontal ifTrue:[
self error:'not allowed for horizontal panels'
].
handleLabels := aCollectionOfLabels.
self computeBarHeight.
self resizeSubviews.
!
handleLevel:aNumber
"define the 3D level of the handle (only with some styles).
Normally, this is defined via styleSheet files, but this entry allows
individual views to be manipulated."
handleLevel := aNumber
!
handlePosition
"return the position of the handle"
^ handlePosition
!
handlePosition:aSymbol
"define the position of the handle; the argument aSymbol
may be one of #left, #right or #center"
handlePosition := aSymbol
!
handleShadowImage:shadowImage lightImage:lightImage
"define the handles image; both shadow and light parts"
shadowForm := shadowImage.
lightForm := lightImage.
self computeBarHeight.
"Created: 7.11.1996 / 20:21:51 / cg"
"Modified: 7.11.1996 / 20:27:26 / cg"
!
handleStyle:styleSymbol
"define the style of the handle;
styleSymbol may be #motif to draw a little knob or
anything else to draw scrollBars handleForm.
Normally, this is defined via styleSheet files, but this entry allows
individual views to be manipulated."
(styleSymbol ~~ handleStyle) ifTrue:[
handleStyle := styleSymbol.
handleStyle == #next ifTrue:[
shadowForm := self class shadowFormOn:device.
lightForm := self class lightFormOn:device.
] ifFalse:[
shadowForm := lightForm := nil
].
shadowForm notNil ifTrue:[
(self is3D and:[handleStyle ~~ #motif]) ifTrue:[
self barHeight:(shadowForm height + 2).
barWidth := shadowForm width
]
].
shown ifTrue:[
self resizeSubviews.
self invalidate
]
]
"Created: 24.2.1996 / 19:04:07 / cg"
"Modified: 29.5.1996 / 16:22:24 / cg"
!
style:styleSymbol
"define the style of the handle;
styleSymbol may be #motif to draw a little knob or
anything else to draw scrollBars handleForm.
Normally, this is defined via styleSheet files, but this entry allows
individual views to be manipulated."
self handleStyle:styleSymbol
"Modified: 24.2.1996 / 19:04:19 / cg"
! !
!VariablePanel methodsFor:'drawing'!
drawHandle:hIndex atX:hx y:hy
"draw a single handle at hx/hy"
|h w x y m lbl maxKnob|
handleStyle isNil ifTrue:[^ self].
shadowForm notNil ifTrue:[
h := shadowForm height.
w := shadowForm width .
maxKnob := h min:barHeight.
] ifFalse:[
maxKnob := knobHeight min: barHeight.
maxKnob := maxKnob max:4.
w := h := maxKnob - 4.
].
self paint:viewBackground.
orientation == #vertical ifTrue:[
self fillRectangleX:margin y:hy
width:(width - margin - margin)
height:barHeight.
(handleStyle ~~ #normal and:[handleStyle ~~ #mswindows]) ifTrue:[
m := (maxKnob - h) // 2.
shadowForm isNil ifTrue:[
y := hy + (barHeight // 2). "/ center of the bar
separatingLine ifTrue:[
self paint:shadowColor.
self displayLineFromX:margin y:y toX:(width - margin) y:y.
y := y + 1.
self paint:lightColor.
self displayLineFromX:margin y:y toX:(width - margin) y:y.
].
self paint:viewBackground.
self fillRectangleX:(hx - barWidth) y:hy
width:(barWidth + barWidth)
height:h.
handleStyle == #line ifTrue:[
self paint:handleColor.
self displayLineFromX:hx - barWidth y:y toX:hx + barWidth y:y
] ifFalse:[
y := hy.
handleStyle == #st80 ifTrue:[
y := y - 1
].
self drawEdgesForX:(hx - barWidth)
y:(y + m)
width:(barWidth + barWidth)
height:h
level:handleLevel.
handleStyle == #iris ifTrue:[
self paint:handleColor.
self fillDeviceRectangleX:(hx - barWidth + 2)
y:(y + m + 2)
width:(barWidth + barWidth - 4)
height:h - 4
]
].
] ifFalse:[
y := hy.
self drawHandleFormAtX:hx y:(y + m)
].
handleStyle == #st80 ifTrue:[
y := hy - 1.
self paint:lightColor.
self displayLineFromX:margin y:y toX:(width - margin - margin - 1) y:y.
self displayLineFromX:0 y:hy toX:0 y:(hy + knobHeight - 1).
y := hy + knobHeight - 2.
self paint:shadowColor.
self displayLineFromX:margin y:y toX:(width - margin) y:y.
"uncomment the -1 if you dont like the notch at the right end"
" VVV"
self displayLineFromX:width-1 y:hy" "-1" " toX:width-1 y:(hy + knobHeight - 1).
].
] ifFalse:[
y := hy + barHeight - 1.
self paint:handleColor.
separatingLine ifTrue:[
self displayLineFromX:0 y:hy+1 toX:width y:hy+1.
self displayLineFromX:0 y:y toX:width y:y.
].
self fillRectangleX:hx y:hy width:barWidth height:barHeight
].
lbl := self handleLabelAt:hIndex.
lbl notNil ifTrue:[
hIndex ~~ 1 ifTrue:[
self paint:Color black.
lbl isImageOrForm ifTrue:[
lbl displayOn:self x:margin y:hy
] ifFalse:[
lbl displayOn:self x:margin y:hy + font ascent + 1
]
]
].
] ifFalse:[
self fillRectangleX:hx y:margin
width:barHeight
height:(height - margin - margin).
(handleStyle ~~ #normal and:[handleStyle ~~ #mswindows]) ifTrue:[
m := (barHeight - w) // 2.
shadowForm isNil ifTrue:[
x := hx + (barHeight // 2).
separatingLine ifTrue:[
self paint:shadowColor.
self displayLineFromX:x y:margin toX:x y:(height - margin).
x := x + 1.
self paint:lightColor.
self displayLineFromX:x y:margin toX:x y:(height - margin).
].
self paint:viewBackground.
self fillRectangleX:hx y:(hy - barWidth)
width:w
height:(barWidth + barWidth).
handleStyle == #line ifTrue:[
self paint:handleColor.
self displayLineFromX:x y:hy - barWidth toX:x y:hy + barWidth.
] ifFalse:[
x := hx.
handleStyle == #st80 ifTrue:[
x := x - 1.
].
self drawEdgesForX:(x + m)
y:(hy - barWidth)
width:w
height:(barWidth + barWidth)
level:handleLevel.
handleStyle == #iris ifTrue:[
self paint:handleColor.
self fillDeviceRectangleX:(x + m + 2)
y:(hy - barWidth + 2)
width:w - 4
height:(barWidth + barWidth - 4)
].
]
] ifFalse:[
x := hx.
self drawHandleFormAtX:(x + m) y:hy
].
handleStyle == #st80 ifTrue:[
x := hx - 1.
self paint:lightColor.
self displayLineFromX:x y:margin toX:x y:(height - margin).
self displayLineFromX:hx y:0 toX:(hx + barHeight - 1) y:0.
x := hx + barHeight - 2.
self paint:shadowColor.
self displayLineFromX:x y:margin toX:x y:(height - margin).
"uncomment the -1 if you dont like the notch at the bottom end"
" VVV"
self displayLineFromX:hx" "-1" " y:height-1 toX:(hx + barHeight - 1) y:height-1.
].
] ifFalse:[
x := hx + barHeight - 1.
self paint:handleColor.
separatingLine ifTrue:[
self displayLineFromX:hx+1 y:0 toX:hx+1 y:height.
self displayLineFromX:x y:0 toX:x y:height.
].
self fillRectangleX:hx y:hy width:barHeight height:barWidth
]
].
"Modified: 7.11.1996 / 20:26:31 / cg"
!
drawHandleFormAtX:hx y:hy
"draw a handles bitmap at hx/hy"
shadowForm notNil ifTrue:[
self paint:shadowColor.
self displayForm:shadowForm x:hx y:hy.
].
lightForm notNil ifTrue:[
self paint:lightColor.
self displayForm:lightForm x:hx y:hy.
].
self paint:viewBackground
"Modified: 7.11.1996 / 20:25:33 / cg"
!
invertHandleBarAtX:hx y:hy
self noClipByChildren.
self xoring:[
|y x|
orientation == #vertical ifTrue:[
trackLine ifTrue:[
y := hy + (barHeight // 2).
self displayLineFromX:0 y:y toX:width y:y.
] ifFalse:[
self fillRectangleX:0 y:hy width:width height:barHeight
]
] ifFalse:[
trackLine ifTrue:[
x := hx + (barHeight // 2).
self displayLineFromX:x y:0 toX:x y:height.
] ifFalse:[
self fillRectangleX:hx y:0 width:barHeight height:height
]
]
].
self clipByChildren.
!
lockRedraw
redrawLocked := true
!
redraw
"redraw all of the handles"
redrawLocked ~~ true ifTrue:[
self redrawHandlesFrom:1 to:(subViews size)
]
!
redrawHandlesFrom:start to:stop
"redraw some handles"
subViews notNil ifTrue:[
showHandle ifTrue:[
self handleOriginsWithIndexFrom:start to:stop do:[:hPoint :hIndex |
self drawHandle:hIndex atX:(hPoint x) y:(hPoint y)
].
]
]
!
unlockRedraw
redrawLocked := false
! !
!VariablePanel methodsFor:'event handling'!
sizeChanged:how
"my size has changed; resize my subviews"
shown ifTrue:[
(how == #smaller) ifTrue:[
self resizeSubviews
] ifFalse:[
"/
"/ do it in reverse order, to avoid some redraws
"/
self resizeSubviewsFrom:(subViews size) to:1
]
].
self changed:#sizeOfView with:how.
! !
!VariablePanel methodsFor:'initializing'!
computeBarHeight
|bH h|
shadowForm notNil ifTrue:[
bH := shadowForm height + 2.
] ifFalse:[
self is3D ifTrue:[
h := 3
] ifFalse:[
h := 2
].
bH := (h * device verticalPixelPerMillimeter) rounded.
].
self barHeight:bH.
knobHeight := bH.
handleLabels notNil ifTrue:[
font := font on:device.
bH := handleLabels inject:bH into:[:maxSoFar :thisLabel |
thisLabel isNil ifTrue:[
maxSoFar
] ifFalse:[
maxSoFar max:(thisLabel heightOn:self)
]
].
bH := bH + font descent - 1
].
self barHeight:bH.
"Modified: 7.11.1996 / 20:27:13 / cg"
!
defaultControllerClass
^ VariablePanelController
!
fixSize
extentChanged ifTrue:[
super fixSize.
self resizeSubviews
] ifFalse:[
super fixSize
]
!
initCursor
"set the cursor - a double arrow"
orientation == #vertical ifTrue:[
DefaultVCursor notNil ifTrue:[
cursor := DefaultVCursor
] ifFalse:[
cursor := Cursor sourceForm:(Form fromFile:'VVPanel.xbm')
maskForm:(Form fromFile:'VVPanel_m.xbm')
hotX:8
hotY:8.
"
if bitmaps are not available, use a standard cursor
"
cursor isNil ifTrue:[
"which one looks better ?"
cursor := Cursor upDownArrow
"cursor := Cursor upLimitArrow"
].
DefaultVCursor := cursor
]
] ifFalse:[
DefaultHCursor notNil ifTrue:[
cursor := DefaultHCursor
] ifFalse:[
cursor := Cursor sourceForm:(Form fromFile:'VHPanel.xbm')
maskForm:(Form fromFile:'VHPanel_m.xbm')
hotX:8
hotY:8.
"
if bitmaps are not available, use a standard cursor
"
cursor isNil ifTrue:[
"which one looks better ?"
cursor := Cursor leftRightArrow
"cursor := Cursor leftLimitArrow"
].
DefaultHCursor := cursor
]
]
!
initStyle
|mm|
super initStyle.
handleColor := DefaultHandleColor on:device.
DefaultHandleStyle isNil ifTrue:[
handleStyle := styleSheet name
] ifFalse:[
handleStyle := DefaultHandleStyle
].
handleLevel := DefaultHandleLevel.
showHandle := DefaultShowHandle.
handlePosition := DefaultHandlePosition.
trackLine := DefaultTrackingLine.
separatingLine := DefaultSeparatingLine.
handleStyle == #next ifTrue:[
shadowForm := self class shadowFormOn:device.
lightForm := self class lightFormOn:device.
barWidth := shadowForm width.
] ifFalse:[
shadowForm := lightForm := nil.
mm := device verticalPixelPerMillimeter.
barWidth := (2 * mm) rounded. "motif style width"
].
self computeBarHeight.
handleStyle == #mswindows ifTrue:[
barWidth := (ArrowButton new direction:#up) width + 1
].
"Modified: 8.3.1996 / 11:51:59 / cg"
!
initialize
orientation isNil ifTrue:[orientation := #vertical].
super initialize.
"Modified: 7.3.1996 / 14:08:25 / cg"
! !
!VariablePanel methodsFor:'private'!
anyNonRelativeSubviews
"return true, if any of my subviews has no relative origin/extent"
1 to:(subViews size) do:[:index |
|view|
view := subViews at:index.
view relativeCorner isNil ifTrue:[^ true].
view relativeOrigin isNil ifTrue:[^ true]
].
^ false
!
handleLabelAt:hIndex
handleLabels notNil ifTrue:[
^ handleLabels at:hIndex ifAbsent:nil
].
^ nil
!
handleOriginsWithIndexDo:aBlock
"evaluate the argument block for every handle-origin"
self handleOriginsWithIndexFrom:1 to:(subViews size) do:aBlock
!
handleOriginsWithIndexFrom:start to:stop do:aBlock
"evaluate the argument block for some handle-origins"
|x y hw hh hDelta vDelta
first "{ Class: SmallInteger }"
last "{ Class: SmallInteger }"|
subViews notNil ifTrue:[
shadowForm notNil ifTrue:[
hw := shadowForm width.
hh := shadowForm height.
] ifFalse:[
hw := hh := barWidth
].
(handleStyle ~~ #normal and:[handleStyle ~~ #mswindows]) ifTrue:[
hDelta := barWidth // 2.
vDelta := barWidth // 2.
] ifFalse:[
hDelta := vDelta := 0
].
(handlePosition == #left) ifTrue:[
x := hDelta.
y := vDelta
] ifFalse:[
(handlePosition == #right) ifTrue:[
x := width - hw - margin - hDelta.
y := height - hh - margin - vDelta.
] ifFalse:[
x := width - barWidth // 2.
y := height - barWidth // 2
]
].
first := start + 1.
last := stop.
first to:last do:[:index |
|view|
view := subViews at:index.
orientation == #vertical ifTrue:[
y := view top "origin y" - barHeight + 1.
] ifFalse:[
x := view left "origin x" - barHeight + 1.
].
aBlock value:(x @ y) value:index
]
]
!
resizeSubviews
"readjust size of some subviews"
self resizeSubviewsFrom:1 to:(subViews size)
!
resizeSubviewsFrom:start to:stop
"readjust size of some subviews"
|step nSubviews|
subViews notNil ifTrue:[
(start <= stop) ifTrue:[
step := 1
] ifFalse:[
step := -1
].
nSubviews := subViews size.
start to:stop by:step do:[:index |
|bw view o1 o2 relOrg relCorner newOrg newCorner newExt|
view := subViews at:index.
bw := view borderWidth.
index == 1 ifTrue:[
o1 := 0.
] ifFalse:[
o1 := barHeight // 2 - bw
].
index == nSubviews ifTrue:[
o2 := 0.
] ifFalse:[
o2 := barHeight // 2 - bw
].
"
relCorner := view relativeCorner.
relCorner isNil ifTrue:[
self error:'subview must have relative corner'
].
newCorner := view cornerFromRelativeCorner.
newCorner notNil ifTrue:[
newCorner y:(newCorner y - o2)
].
relOrg := view relativeOrigin.
relOrg isNil ifTrue:[
self error:'subview must have relative origin'
].
newOrg := view originFromRelativeOrigin.
newOrg notNil ifTrue:[
(index ~~ 1) ifTrue:[
newOrg y:(newOrg y + o1)
].
].
view pixelOrigin:newOrg corner:newCorner
"
newOrg := view computeOrigin.
newOrg notNil ifTrue:[
(index ~~ 1) ifTrue:[
orientation == #vertical ifTrue:[
newOrg y:(newOrg y + o1)
] ifFalse:[
newOrg x:(newOrg x + o1)
]
].
].
newExt := view computeExtent.
newExt notNil ifTrue:[
orientation == #vertical ifTrue:[
newExt y:(newExt y - o2 - o1)
] ifFalse:[
newExt x:(newExt x - o2 - o1)
]
].
view pixelOrigin:newOrg extent:newExt.
]
]
"Modified: 7.11.1996 / 17:10:26 / cg"
!
setupSubviews
"setup subviews sizes (in case of non-relative sizes)"
|pos delta|
"/ setup all subviews to spread evenly ...
pos := 0.0.
delta := 1.0 / (subViews size).
1 to:(subViews size) do:[:index |
|view|
view := subViews at:index.
orientation == #vertical ifTrue:[
index == subViews size ifTrue:[
view origin:(0.0 @ pos) corner:(1.0 @ 1.0)
] ifFalse:[
view origin:(0.0 @ pos) corner:(1.0 @ (pos + delta))
].
] ifFalse:[
index == subViews size ifTrue:[
view origin:(pos @ 0.0) corner:(1.0 @ 1.0)
] ifFalse:[
view origin:(pos @ 0.0) corner:((pos + delta) @ 1.0)
].
].
pos := pos + delta
]
! !
!VariablePanel methodsFor:'private tableView protocol'!
setupSubviewOrigins
"setup subviews origins
if we only have relative extents
(Variable Panels need relative origins and corners!!) (SV 16.1.95)"
|x y e eX eY n "{ Class: SmallInteger }"|
x := y := 0.0.
n := subViews size.
1 to:n do:[:index |
|view|
view := subViews at:index.
e := view relativeExtent.
e notNil ifTrue:[
view relativeExtent:nil.
eX := e x.
eY := e y.
index == n ifTrue:[
view origin:(x @ y) corner:(1.0 @ 1.0)
] ifFalse:[
orientation == #vertical ifTrue:[
view origin:(x @ y) corner:(1.0 @ (y+eY))
] ifFalse:[
view origin:(x @ y) corner:((x+eX) @ 1.0)
].
].
orientation == #vertical ifTrue:[
y := y + eY.
] ifFalse:[
x := x + eX.
]
] ifFalse: [
view origin:(x @ y).
orientation == #vertical ifTrue:[
y := view relativeCorner y.
] ifFalse:[
x := view relativeCorner x.
]
].
]
"Modified: 21.8.1996 / 10:01:29 / stefan"
! !
!VariablePanel class methodsFor:'documentation'!
version
^ '$Header: /cvs/stx/stx/libwidg/VariablePanel.st,v 1.17 1996-11-07 19:40:19 cg Exp $'
! !