"
 COPYRIGHT (c) 1995 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:libtool2' }"

SimpleDialog subclass:#ColorEditDialog
	instanceVariableNames:'red green blue hue light saturation colorNameHolder'
	classVariableNames:''
	poolDictionaries:''
	category:'Interface-UIPainter'
!

!ColorEditDialog class methodsFor:'documentation'!

copyright
"
 COPYRIGHT (c) 1995 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 edit-dialog for colors.
"
!

examples
"
                                                                                [exBegin]                                      
    |editor color|

    editor := ColorEditDialog new.
    editor color:(Color green).
    editor open.
    editor accepted ifTrue:[
        editor color inspect.
    ]
                                                                                [exEnd]
"
! !

!ColorEditDialog class methodsFor:'interface specs'!

windowSpec
    "This resource specification was automatically generated
     by the UIPainter of ST/X."

    "Do not manually edit this!! If it is corrupted,
     the UIPainter may not be able to read the specification."

    "
     UIPainter new openOnClass:ColorEditor andSelector:#windowSpec
     ColorEditor new openInterface:#windowSpec
     ColorEditor open
    "

    <resource: #canvas>

    ^ 
     #(FullSpec
        name: windowSpec
        window: 
       (WindowSpec
          label: 'Define Color'
          name: 'Define Color'
          min: (Point 340 260)
          max: (Point nil 260)
          bounds: (Rectangle 0 0 453 260)
        )
        component: 
       (SpecCollection
          collection: (
           (VerticalPanelViewSpec
              name: 'RGBLabelPanel'
              layout: (LayoutFrame 0 0 0 0 58 0 76 0)
              horizontalLayout: fit
              verticalLayout: spreadSpace
              horizontalSpace: 3
              verticalSpace: 3
              component: 
             (SpecCollection
                collection: (
                 (LabelSpec
                    label: 'Red:'
                    name: 'RedLabel'
                    translateLabel: true
                    adjust: right
                    useDefaultExtent: true
                  )
                 (LabelSpec
                    label: 'Green:'
                    name: 'GreenLabel'
                    translateLabel: true
                    adjust: right
                    useDefaultExtent: true
                  )
                 (LabelSpec
                    label: 'Blue:'
                    name: 'BlueLabel'
                    translateLabel: true
                    adjust: right
                    useDefaultExtent: true
                  )
                 )
               
              )
            )
           (VerticalPanelViewSpec
              name: 'RGBSliderPanel'
              layout: (LayoutFrame 62 0 0 0 -166 1 76 0)
              horizontalLayout: fit
              verticalLayout: spreadSpace
              horizontalSpace: 3
              verticalSpace: 3
              component: 
             (SpecCollection
                collection: (
                 (SliderSpec
                    name: 'RedSlider'
                    tabable: false
                    model: red
                    orientation: horizontal
                    stop: 255
                    step: 1
                    backgroundColor: (Color 100.0 0.0 0.0)
                    extent: (Point 225 16)
                  )
                 (SliderSpec
                    name: 'GreenSlider'
                    tabable: false
                    model: green
                    orientation: horizontal
                    stop: 255
                    step: 1
                    backgroundColor: (Color 0.0 100.0 0.0)
                    extent: (Point 225 16)
                  )
                 (SliderSpec
                    name: 'BlueSlider'
                    tabable: false
                    model: blue
                    orientation: horizontal
                    stop: 255
                    step: 1
                    backgroundColor: (Color 0.0 0.0 100.0)
                    extent: (Point 225 16)
                  )
                 )
               
              )
            )
           (VerticalPanelViewSpec
              name: 'RGBFieldPanel'
              layout: (LayoutFrame -161 1 0 0 -123 1 76 0)
              horizontalLayout: fit
              verticalLayout: spreadSpace
              horizontalSpace: 3
              verticalSpace: 3
              component: 
             (SpecCollection
                collection: (
                 (InputFieldSpec
                    name: 'RedField'
                    model: red
                    type: numberInRange
                    numChars: 3
                    minValue: 0
                    maxValue: 255
                    acceptOnPointerLeave: false
                    extent: (Point 38 20)
                  )
                 (InputFieldSpec
                    name: 'GreenField'
                    model: green
                    type: numberInRange
                    numChars: 3
                    minValue: 0
                    maxValue: 255
                    acceptOnPointerLeave: false
                    extent: (Point 38 20)
                  )
                 (InputFieldSpec
                    name: 'BlueField'
                    model: blue
                    type: numberInRange
                    numChars: 3
                    minValue: 0
                    maxValue: 255
                    acceptOnPointerLeave: false
                    extent: (Point 38 20)
                  )
                 )
               
              )
            )
           (VerticalPanelViewSpec
              name: 'HLSLabelPanel'
              layout: (LayoutFrame 0 0 86 0 58 0 163 0)
              horizontalLayout: fit
              verticalLayout: spreadSpace
              horizontalSpace: 3
              verticalSpace: 3
              component: 
             (SpecCollection
                collection: (
                 (LabelSpec
                    label: 'Hue:'
                    name: 'Label1'
                    translateLabel: true
                    adjust: right
                    useDefaultExtent: true
                  )
                 (LabelSpec
                    label: 'Light:'
                    name: 'Label2'
                    translateLabel: true
                    adjust: right
                    useDefaultExtent: true
                  )
                 (LabelSpec
                    label: 'Sat:'
                    name: 'Label3'
                    translateLabel: true
                    adjust: right
                    useDefaultExtent: true
                  )
                 )
               
              )
            )
           (VerticalPanelViewSpec
              name: 'HLSSliderPanel'
              layout: (LayoutFrame 62 0 86 0 -166 1 163 0)
              horizontalLayout: fit
              verticalLayout: spreadSpace
              horizontalSpace: 3
              verticalSpace: 3
              component: 
             (SpecCollection
                collection: (
                 (SliderSpec
                    name: 'Slider1'
                    tabable: false
                    model: hue
                    orientation: horizontal
                    stop: 359
                    step: 1
                    keyboardStep: 1
                    extent: (Point 225 16)
                  )
                 (SliderSpec
                    name: 'Slider2'
                    tabable: false
                    model: light
                    orientation: horizontal
                    step: 1
                    backgroundColor: (Color 66.9993 66.9993 66.9993)
                    keyboardStep: 1
                    extent: (Point 225 16)
                  )
                 (SliderSpec
                    name: 'Slider3'
                    tabable: false
                    model: saturation
                    orientation: horizontal
                    step: 1
                    backgroundColor: (Color 66.9993 66.9993 66.9993)
                    keyboardStep: 1
                    extent: (Point 225 16)
                  )
                 )
               
              )
            )
           (VerticalPanelViewSpec
              name: 'HLSFieldPanel'
              layout: (LayoutFrame -161 1 86 0 -123 1 163 0)
              horizontalLayout: fit
              verticalLayout: spreadSpace
              horizontalSpace: 3
              verticalSpace: 3
              component: 
             (SpecCollection
                collection: (
                 (InputFieldSpec
                    name: 'EntryField1'
                    model: hue
                    type: numberInRange
                    numChars: 3
                    minValue: 0
                    maxValue: 359
                    acceptOnPointerLeave: false
                    extent: (Point 38 20)
                  )
                 (InputFieldSpec
                    name: 'EntryField2'
                    model: light
                    type: numberInRange
                    numChars: 3
                    minValue: 0
                    maxValue: 100
                    acceptOnPointerLeave: false
                    extent: (Point 38 20)
                  )
                 (InputFieldSpec
                    name: 'EntryField3'
                    model: saturation
                    type: numberInRange
                    numChars: 3
                    minValue: 0
                    maxValue: 100
                    acceptOnPointerLeave: false
                    extent: (Point 38 20)
                  )
                 )
               
              )
            )
           (ViewSpec
              name: 'Box1'
              layout: (LayoutFrame -117 1 4 0.0 -3 1.0 -39 1.0)
              level: 1
              component: 
             (SpecCollection
                collection: (
                 (LabelSpec
                    label: 'Preview'
                    name: 'PreviewBox'
                    layout: (LayoutFrame 2 0.0 2 0.0 -2 1.0 -2 1.0)
                    level: -1
                    translateLabel: true
                  )
                 )
               
              )
            )
           (LabelSpec
              label: 'Color Name:'
              name: 'ColorNameLabel'
              layout: (LayoutFrame 0 0 190 0 106 0 212 0)
              translateLabel: true
              adjust: right
            )
           (InputFieldSpec
              name: 'ColorNameField'
              layout: (LayoutFrame 110 0 190 0 -123 1 212 0)
              model: colorNameHolder
              immediateAccept: true
              acceptOnReturn: true
              acceptOnTab: true
              acceptOnLostFocus: true
              acceptOnPointerLeave: false
            )
           (HorizontalPanelViewSpec
              name: 'HorizontalPanel1'
              layout: (LayoutFrame 0 0.0 -32 1 0 1.0 0 1.0)
              horizontalLayout: fitSpace
              verticalLayout: centerMax
              horizontalSpace: 3
              verticalSpace: 3
              reverseOrderIfOKAtLeft: true
              component: 
             (SpecCollection
                collection: (
                 (ActionButtonSpec
                    label: 'Cancel'
                    name: 'CancelButton'
                    translateLabel: true
                    resizeForLabel: false
                    tabable: true
                    model: cancel
                    useDefaultExtent: true
                  )
                 (ActionButtonSpec
                    label: 'OK'
                    name: 'OKButton'
                    translateLabel: true
                    resizeForLabel: false
                    tabable: true
                    model: accept
                    isDefault: true
                    defaultable: true
                    useDefaultExtent: true
                  )
                 )
               
              )
            )
           )
         
        )
      )
! !

!ColorEditDialog methodsFor:'accessing'!

color
    ^Color redByte:(red value) greenByte:(green value) blueByte:(blue value)
!

color:aColor 
    aColor notNil ifTrue:[
        self red value:aColor redByte.
        self green value:aColor greenByte.
        self blue value:aColor blueByte.
    ]
!

colorName
    ^ colorNameHolder value
! !

!ColorEditDialog methodsFor:'actions'!

colorChanged
    |box clr|

    box := self componentAt: #PreviewBox.
    box isNil ifTrue:[^ self "called before setup"].

    clr := self color.
    box backgroundColor:clr.
    box foregroundColor:(clr brightness < 0.5 
                            ifTrue:[Color white] 
                            ifFalse:[Color black]).
!

colorNameChanged
    "compute rgb and hls (if possible)"

    |clr h|

    clr := Color name:colorNameHolder value ifIllegal:nil.
    clr isNil ifTrue:[
        ^ self
    ].

    red   value:clr redByte withoutNotifying:self.
    green value:clr greenByte withoutNotifying:self.
    blue  value:clr blueByte withoutNotifying:self.

    h := clr hue.
    h notNil ifTrue:[
        hue        value:(h rounded) withoutNotifying:self.
    ].
    light      value:(clr light rounded) withoutNotifying:self.
    saturation value:(clr saturation rounded) withoutNotifying:self.

    self colorChanged
!

hlsSliderChanged
    "compute rgb"

    Color withRGBFromHue:hue value light:light value saturation:saturation value do:[:r :g :b |
        red    value:(r * 255 / 100) rounded withoutNotifying:self.
        green  value:(g * 255 / 100) rounded withoutNotifying:self.
        blue   value:(b * 255 / 100) rounded withoutNotifying:self.
    ].
    colorNameHolder value:'' withoutNotifying:self.
    self colorChanged
!

rgbSliderChanged
    "compute hls"

    |r g b|

    r := self red value.
    g := self green value.
    b := self blue value.

    Color withHLSFromRed:(r * 100 / 255) green:(g * 100 / 255) blue:(b * 100 / 255) do:[:h :l :s |
        h isNil ifTrue:[
            "/ achromatic
        ] ifFalse:[
            self hue    value:(h rounded) withoutNotifying:self.
        ].
        self light      value:(l rounded) withoutNotifying:self.
        self saturation value:(s rounded) withoutNotifying:self.
    ].
    self colorNameHolder value:'' withoutNotifying:self.
    self colorChanged
! !

!ColorEditDialog methodsFor:'aspects'!

blue
    blue isNil ifTrue:[
        blue := 0 asValue.
        blue addDependent:self.
    ].
    ^blue
!

colorNameHolder
    colorNameHolder isNil ifTrue:[
        colorNameHolder := '' asValue.
        colorNameHolder addDependent:self.
    ].
    ^colorNameHolder
!

green
    green isNil ifTrue:[
        green := 0 asValue.
        green addDependent:self.
    ].
    ^green
!

hue
    hue isNil ifTrue:[
        hue := 0 asValue.
        hue addDependent:self.
    ].
    ^hue
!

light
    light isNil ifTrue:[
        light := 0 asValue.
        light addDependent:self.
    ].
    ^light
!

red
    red isNil ifTrue:[
        red := 0 asValue.
        red addDependent:self.
    ].
    ^red
!

saturation
    saturation isNil ifTrue:[
        saturation := 0 asValue.
        saturation addDependent:self.
    ].
    ^saturation
! !

!ColorEditDialog methodsFor:'change & update'!

update:something with:aParameter from:changedObject
    (changedObject == red
    or:[changedObject == green
    or:[changedObject == blue]]) ifTrue:[
        ^ self rgbSliderChanged
    ].

    (changedObject == hue
    or:[changedObject == light
    or:[changedObject == saturation]]) ifTrue:[
        ^ self hlsSliderChanged
    ].

    (changedObject == colorNameHolder) ifTrue:[
        ^ self colorNameChanged
    ].

    ^ super update:something with:aParameter from:changedObject
! !

!ColorEditDialog methodsFor:'startup & release'!

postBuildWith:aBuilder
    super postBuildWith:aBuilder.
    self colorChanged.

    "Modified: / 6.9.1998 / 22:55:25 / cg"
! !

!ColorEditDialog class methodsFor:'documentation'!

version
    ^ '$Header$'
! !