/// <summary>
/// Ensure the correct state palettes are being used.
/// </summary>
public override void UpdateStatePalettes()
{
IPaletteBack back;
// If whole navigator is disabled then all of view is disabled
bool enabled = Navigator.Enabled;
// If there is no selected page
if (Navigator.SelectedPage == null)
{
// Then use the state defined in the navigator itself
if (Navigator.Enabled)
{
back = Navigator.StateNormal.Back;
}
else
{
back = Navigator.StateDisabled.Back;
}
}
else
{
// Use state defined in the selected page
if (Navigator.SelectedPage.Enabled)
{
back = Navigator.SelectedPage.StateNormal.Back;
}
else
{
back = Navigator.SelectedPage.StateDisabled.Back;
// If page is disabled then all of view should look disabled
enabled = false;
}
}
// Update the view canvas with correct palette source
_drawPanel.SetPalettes(back);
_drawPanel.Enabled = enabled;
// Let base class perform common actions
base.UpdateStatePalettes();
}
/// <summary>
/// Initialize a new instance of the KryptonGroupPanel class.
/// </summary>
/// <param name="alignControl">Container control for alignment.</param>
/// <param name="stateCommon">Common appearance state to inherit from.</param>
/// <param name="stateDisabled">Disabled appearance state.</param>
/// <param name="stateNormal">Normal appearance state.</param>
/// <param name="layoutHandler">Callback delegate for layout processing.</param>
public KryptonGroupPanel(Control alignControl,
PaletteDoubleRedirect stateCommon,
PaletteDouble stateDisabled,
PaletteDouble stateNormal,
NeedPaintHandler layoutHandler)
: base(stateCommon, stateDisabled, stateNormal)
{
// Remember the delegate used to notify layouts
_layoutHandler = layoutHandler;
// Create the forced overrides to enforce the graphics option we want
_forcedDisabled = new PaletteBackInheritForced(stateDisabled.Back);
_forcedNormal = new PaletteBackInheritForced(stateNormal.Back);
// We never allow the anti alias option as it prevent transparent background working
_forcedDisabled.ForceGraphicsHint = PaletteGraphicsHint.None;
_forcedNormal.ForceGraphicsHint = PaletteGraphicsHint.None;
// Set the correct initial palettes
ViewDrawPanel.SetPalettes(Enabled ? _forcedNormal : _forcedDisabled);
// Make sure the alignment of the group panel is as that of the parent
ViewManager.AlignControl = alignControl;
}