Add OnEnter to Swatch and ColorPicker

labelswatch.go

@@ -49,11 +49,17 @@ func (this *LabelSwatch) RGBA () (r, g, b, a uint32) {
 }
 
 // OnValueChange specifies a function to be called when the swatch's color
-// changes.
+// is changed by the user.
 func (this *LabelSwatch) OnValueChange (callback func ()) event.Cookie {
 	return this.swatch.OnValueChange(callback)
 }
 
+// OnEnter specifies a function to be called when the user selects "OK" in the
+// color picker.
+func (this *LabelSwatch) OnEnter (callback func ()) event.Cookie {
+	return this.swatch.OnEnter(callback)
+}
+
 func (this *LabelSwatch) handleMouseUp (button input.Button) {
 	if button != input.ButtonLeft { return }
 	if this.MousePosition().In(this.Bounds()) {

swatch.go

@@ -17,6 +17,7 @@ type Swatch struct {
 	label string
 	on struct {
 		valueChange event.FuncBroadcaster
+		enter       event.FuncBroadcaster
 	}
 }
 
@@ -49,15 +50,22 @@ func (this *Swatch) Value () color.Color {
 
 // RGBA satisfies the color.Color interface
 func (this *Swatch) RGBA () (r, g, b, a uint32) {
+	if this.value == nil { return }
 	return this.value.RGBA()
 }
 
 // OnValueChange specifies a function to be called when the swatch's color
-// changes.
+// is changed by the user.
 func (this *Swatch) OnValueChange (callback func ()) event.Cookie {
 	return this.on.valueChange.Connect(callback)
 }
 
+// OnEnter specifies a function to be called when the user selects "OK" in the
+// color picker.
+func (this *Swatch) OnEnter (callback func ()) event.Cookie {
+	return this.on.enter.Connect(callback)
+}
+
 // Choose creates a modal that allows the user to edit the color of the swatch.
 func (this *Swatch) Choose () {
 	if this.editing { return }
@@ -65,7 +73,7 @@ func (this *Swatch) Choose () {
 	var err    error
 	var window tomo.Window
 	if parent := this.Window(); parent != nil {
-		window, err = parent.NewModal(image.Rectangle { })
+		window, err = parent.NewChild(image.Rectangle { })
 	} else {
 		window, err = tomo.NewWindow(image.Rectangle { })
 	}
@@ -79,22 +87,26 @@ func (this *Swatch) Choose () {
 		window.SetTitle(this.label)
 	}
 	
+	committed := false
+	
 	colorPicker := NewColorPicker(this.Value())
 	colorPicker.OnValueChange(func () {
 		this.userSetValue(colorPicker.Value())
 	})
 	
+	hexInput := NewTextInput("TODO")
+	
 	colorMemory  := this.value
 	cancelButton := NewButton("Cancel")
 	cancelButton.SetIcon(tomo.IconDialogCancel)
 	cancelButton.OnClick(func () {
-		this.userSetValue(colorMemory)
 		window.Close()
 	})
 	okButton := NewButton("OK")
 	okButton.SetFocused(true)
 	okButton.SetIcon(tomo.IconDialogOkay)
 	okButton.OnClick(func () {
+		committed = true
 		window.Close()
 	})
 	
@@ -106,8 +118,16 @@ func (this *Swatch) Choose () {
 	window.SetRoot(NewOuterContainer (
 		layouts.Column { true, false },
 		colorPicker,
+		NewInnerContainer(layouts.Row { false, true },
+			NewLabel("Hex"),
+			hexInput),
 		controlRow))
 	window.OnClose(func () {
+		if committed {
+			this.on.enter.Broadcast()
+		} else {
+			this.userSetValue(colorMemory)
+		}
 		this.editing = false
 	})
 	this.editing = true