// ColorSelector adds a color selector widget.
//
func ColorSelector(key *cftype.Key) {
values := key.Value().ListFloat()
if len(values) == 3 {
values = append(values, 1) // no transparency.
}
gdkColor := gdk.NewRGBA(values...)
widget := newgtk.ColorButtonWithRGBA(gdkColor)
var getValue func() interface{}
switch key.Type {
case cftype.KeyColorSelectorRGB:
key.NbElements = 3
getValue = func() interface{} { return widget.GetRGBA().Floats()[:3] } // Need to trunk ?
case cftype.KeyColorSelectorRGBA:
key.NbElements = 4
getValue = func() interface{} { return widget.GetRGBA().Floats() }
}
widget.Set("use-alpha", key.IsType(cftype.KeyColorSelectorRGBA))
key.PackKeyWidget(key,
getValue,
func(uncast interface{}) { widget.SetRGBA(gdk.NewRGBA(uncast.([]float64)...)) },
widget,
)
oldval, e := key.Storage().Default(key.Group, key.Name)
if e == nil {
PackReset(key, oldval.ListFloat())
}
}
// LookupColor is a wrapper around gtk_style_context_lookup_color().
func (v *StyleContext) LookupColor(colorName string) (*gdk.RGBA, bool) {
cstr := (*C.gchar)(C.CString(colorName))
defer C.free(unsafe.Pointer(cstr))
gdkColor := gdk.NewRGBA()
ret := C.gtk_style_context_lookup_color(v.native(), cstr, (*C.GdkRGBA)(unsafe.Pointer(gdkColor.Native())))
return gdkColor, gobool(ret)
}
// GetRGBA() is a wrapper around gtk_color_chooser_get_rgba().
func (v *ColorChooser) GetRGBA() *gdk.RGBA {
gdkColor := gdk.NewRGBA()
C.gtk_color_chooser_get_rgba(v.native(), (*C.GdkRGBA)(unsafe.Pointer(gdkColor.Native())))
return gdkColor
}
// GetColor is a wrapper around gtk_style_context_get_color().
func (v *StyleContext) GetColor(state StateFlags) *gdk.RGBA {
gdkColor := gdk.NewRGBA()
C.gtk_style_context_get_color(v.native(), C.GtkStateFlags(state), (*C.GdkRGBA)(unsafe.Pointer(gdkColor.Native())))
return gdkColor
}