"

 COPYRIGHT (c) 1997 by eXept Software AG

	      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.

"

"{ Package: 'stx:libwidg2' }"

"{ NameSpace: Smalltalk }"

ImageView subclass:#ImageEditView

	instanceVariableNames:'readOnly magnification imageReaderClass resourceClass

		resourceSelector mouseKeyColorMode undoImages modifiedHolder

		editMode lastPastePoint imageInfoHolder activityInfoHolder

		pickedColorHolder drawingColors drawingPixels drawingColorHolders

		drawingPixelHolders clickInfoCallBack penWidth sprayProcess

		sprayPosition spraySpot drawingAlpha'

	classVariableNames:'Clipboard ClipboardMagnified LastMagnification

		GridMagnificationLimit MaxUndos LastSaveDirectory LastSaveClass

		EditModePoint EditModeBox EditModeFilledBox EditModeFill

		EditModeCopy EditModePasteUnder EditModePaste

		EditModePasteWithMask EditModeSpecialOperation EditModeSpray

		EditModeCircle EditModeSmooth'

	poolDictionaries:''

	category:'Views-Misc'

!

!ImageEditView class methodsFor:'documentation'!

copyright

"

 COPYRIGHT (c) 1997 by eXept Software AG

	      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

"

    An ImageEditView is a view which can be used by applications

    like the Image Editor for editing or inspecting (bitmap-) images.

    [see also:]

        ImageEditor Image

    [author:]

        Thomas Zwick

"

! !

!ImageEditView class methodsFor:'initialization'!

initialize

    MaxUndos := 10.

    GridMagnificationLimit := 6 @ 6.

    EditModePoint := #point.

    EditModeBox := #box.

    EditModeCircle := #circle.

    EditModePaste := #paste.

    EditModePasteUnder := #pasteUnder.

    EditModePasteWithMask := #pasteWithMask.

    EditModeFilledBox := #filledBox.

    EditModeFill := #fill.

    EditModeCopy := #copy.

    EditModeSpecialOperation := #specialOperation.

    EditModeSpray := #spray.

    EditModeSmooth := #smooth.

    "

     self initialize

    "

! !

!ImageEditView class methodsFor:'accessing'!

editModeBox

    ^ EditModeBox

!

editModeCopy

    ^ EditModeCopy

!

editModeFill

    ^ EditModeFill

!

editModeFilledBox

    ^ EditModeFilledBox

!

editModePaste

    ^ EditModePaste

!

editModePasteUnder

    ^ EditModePasteUnder

!

editModePasteWithMask

    ^ EditModePasteWithMask

!

editModePoint

    ^ EditModePoint

!

editModeSmooth

    ^ EditModeSmooth

!

editModeSpecialOperation

    ^ EditModeSpecialOperation

!

gridMagnificationLimit

    ^ GridMagnificationLimit

!

gridMagnificationLimit:anInteger

    GridMagnificationLimit := anInteger

!

lastSaveDirectory

    ^ LastSaveDirectory

    "Created: / 14-12-2010 / 14:49:01 / cg"

!

lastSaveDirectory:aStringOrFilename

    LastSaveDirectory := aStringOrFilename

    "Created: / 14-12-2010 / 14:49:18 / cg"

! !

!ImageEditView class methodsFor:'helpers'!

copyImageToClipboard:copiedImage

    ClipboardMagnified := nil.

    Clipboard := copiedImage.

! !

!ImageEditView class methodsFor:'resources'!

classResources

    ^ ImageEditor classResources

! !

!ImageEditView methodsFor:'accessing'!

activityInfoHolder

    "return the value of the instance variable 'activityInfoHolder' (automatically generated)"

    ^ activityInfoHolder

    "Created: / 29.7.1998 / 18:49:39 / cg"

!

activityInfoHolder:something

    "set the value of the instance variable 'activityInfoHolder' (automatically generated)"

    activityInfoHolder := something.

    "Created: / 29.7.1998 / 18:49:39 / cg"

!

clearModified

    self modified:false

!

clickInfoCallBack:aTwoArgBlock

     clickInfoCallBack := aTwoArgBlock

    "Created: / 10.2.2000 / 23:07:14 / cg"

!

clipBoard

    |clipboardObject|

    clipboardObject := self getClipboardObject.

    clipboardObject isImage ifTrue:[

        ^ clipboardObject

    ].

    ^ Clipboard.

!

drawingColorHolders

    ^ drawingColorHolders

!

drawingColors

    ^ drawingColorHolders collect:[:each | each value].

!

drawingColors:anArrayTwoColors

    (drawingColorHolders at:1) value:(anArrayTwoColors at:1).

    (drawingColorHolders at:2) value:(anArrayTwoColors at:2).

!

image:anImage scroll:doScroll

    self image:anImage scroll:doScroll invalidate:true

!

image:anImage scroll:doScroll invalidate:doInvalidate

    |retVal fileName|

    anImage isImage ifTrue:[           

        true "(image isNil or: [self checkModified])" ifTrue: [

            image notNil ifTrue: [

                fileName := image fileName.

                anImage fileName isNil ifTrue: [anImage fileName: fileName].

            ].

            super image:anImage scroll:doScroll invalidate:doInvalidate.

            retVal := self.

        ].

    ] ifFalse: [

        super image:nil scroll:true invalidate:doInvalidate.

    ].

    "/ self changed:#image.

    image isNil ifTrue:[

        self clearModified.

    ] ifFalse:[

        self setModified.

    ].

    self updateImageInfo: self imageInfoString. 

    ^ retVal

    "Modified: / 10.2.2000 / 23:33:12 / cg"

!

imageInfoHolder

    ^ imageInfoHolder

    "Created: / 29.7.1998 / 18:29:50 / cg"

!

imageInfoHolder:something

    imageInfoHolder := something.

    "Created: / 29.7.1998 / 18:29:50 / cg"

!

magnification

    ^magnification

!

magnification: aPoint

    |oldOrg|

    magnification ~= aPoint

    ifTrue:

    [

	oldOrg := self viewOrigin / magnification.

	magnification := aPoint asPoint.

	self scrollTo:(oldOrg * magnification) rounded redraw:false.        

"/        self scrollToTopLeft.

	self contentsChanged.

	self invalidate.

	ClipboardMagnified := nil.

    ]

    "Modified: / 31.7.1998 / 02:38:47 / cg"

!

modified

    ^ modifiedHolder value

!

modified:aBoolean

    modifiedHolder value:aBoolean

!

modifiedHolder

    ^ modifiedHolder

!

penWidth

    ^ penWidth ? 1

    "Created: / 01-11-2007 / 23:34:49 / cg"

!

penWidth:anInteger

    penWidth := anInteger

    "Created: / 01-11-2007 / 23:34:56 / cg"

!

readOnly

    ^ readOnly

!

readOnly:aBoolean

    readOnly := aBoolean.

!

removelastUndo

    undoImages removeLast

!

resourceClass

    ^ resourceClass

!

resourceClass: aClassOrClassNameString

    "support for names will vanish - obsolete left over from tz"

    resourceClass := aClassOrClassNameString.

    resourceClass notNil ifTrue:[

        resourceClass isBehavior ifFalse: [ 

            resourceClass := Smalltalk classNamed:aClassOrClassNameString 

        ]

    ]

!

resourceClassName

    resourceClass isNil ifTrue:[^ ''].

    ^ resourceClass name

!

resourceMessage

    (resourceClass isNil or:[resourceSelector isNil]) ifTrue:[^ ''].

    ^ resourceClass name, ' ', resourceSelector

!

resourceSelector

    ^ resourceSelector

!

resourceSelector: aStringOrSymbol

    aStringOrSymbol isNil ifTrue:[

        resourceSelector := nil

    ] ifFalse:[

        resourceSelector := aStringOrSymbol asSymbol

    ]

!

selectedColor

    |clr|

    clr := (drawingColorHolders at:mouseKeyColorMode) value.

    clr isNil ifTrue:[ clr := Color black ].

    image hasAlphaChannel ifTrue:[

        ^ (TranslucentColor 

                scaledRed:clr scaledRed

                scaledGreen:clr scaledGreen

                scaledBlue:clr scaledBlue)

                alpha:(drawingAlpha ? 1.0)

    ].

    ^ clr

    "Modified: / 20-09-2010 / 11:34:07 / cg"

!

selectedColor: aColor

    (drawingColorHolders at:(mouseKeyColorMode min:drawingColorHolders size)) value:aColor

!

selectedColorIndex

    ^ (drawingPixelHolders at:mouseKeyColorMode) value

!

selectedColorIndex: aPixelIndex

    (drawingPixelHolders at:(mouseKeyColorMode min:drawingPixelHolders size)) value: aPixelIndex

!

setModified

    self modified:true

!

spraySpot

    ^ spraySpot

    "Created: / 15-02-2012 / 22:38:04 / cg"

!

spraySpot:something

    spraySpot := something.

!

undoImages

    ^ undoImages

! !

!ImageEditView methodsFor:'drawing'!

drawFrame

    "draws a black frame around the image's bounds"

    gc paint:self blackColor.

    gc lineWidth: (magnification x//3 min: 3).

    gc displayRectangle: ((0@0) extent:(image extent * magnification) + margin).

    gc lineWidth:1.

!

drawFramesIn: aRectangle

    "draws the pixel frame grid"

    |origin lineStartingPoint lineEndingPoint oldColor mX mY|

    magnification >= GridMagnificationLimit ifTrue: [

        mX := magnification x.

        mY := magnification y.

        origin := aRectangle origin - 1.

        lineStartingPoint := origin + (0 @ mY).

        lineEndingPoint   := lineStartingPoint + (aRectangle width@0).

        oldColor := gc paint.

        gc xoring:[

            gc displayLineFrom: lineStartingPoint to: lineEndingPoint.

            lineStartingPoint x to: lineStartingPoint x + aRectangle width - mX by: mX 

            do:[:x|   

                gc displayLineFrom: x@(origin y) to: x@(origin y + mY)

            ].

        ].

        gc paint: oldColor.

    ]

!

drawPasteRectangleAt: aPoint

    |currentPoint gridCorrection extent|

    magnification >= GridMagnificationLimit ifFalse: [gridCorrection := 0] ifTrue: [gridCorrection := 1].

    currentPoint := aPoint // magnification*magnification + margin. 

    self repairDamage.

    currentPoint ~= lastPastePoint ifTrue:[              

        ClipboardMagnified isNil ifTrue:[

            ClipboardMagnified := (Clipboard magnifiedBy: magnification) onDevice:device

        ].   

        extent := ClipboardMagnified extent.

        "/ currentPoint := currentPoint - self viewOrigin.

        self redraw: (((lastPastePoint ? currentPoint)"-self viewOrigin") extent: extent).

        "/ self repairDamage.

false "        (extent x > 400 or: [extent y > 400])" ifTrue:[

            self xoring: [

                self fillRectangle: (currentPoint extent: extent)

            ]   

        ] ifFalse:[

            ClipboardMagnified notNil ifTrue:[

                self displayDeviceForm: ClipboardMagnified 

                                     x: currentPoint x - self viewOrigin x 

                                     y: currentPoint y - self viewOrigin y.

            ].

            editMode == EditModePastUnder ifTrue:[

                self redrawImageX:currentPoint x y:currentPoint y width:extent x height:extent y unmaskedOnly:true

            ]

        ]  

    ]. 

    lastPastePoint := currentPoint.

    "Modified: / 20-11-2007 / 17:17:14 / cg"

!

fillFramedRectangle: aRectangle

    self fillRectangle: aRectangle.

    self drawFramesIn: aRectangle

!

redraw:aRectangle

    self 

        invalidate:(aRectangle origin "+ self viewOrigin" extent:aRectangle extent)

        repairNow:true.