private void CheckPaletteState(ViewContext context)
{
// Should control be enabled or disabled
bool enabled = IsFixed || context.Control.Enabled;
// Ensure we and child and in correct enabled state
Enabled = enabled;
// Better check we have a child!
if (Count > 0)
this[0].Enabled = enabled;
// If disabled...
if (!enabled)
{
//...must always be using the normal overrides
_paletteContextCurrent.SetInherit(_overrideStateNormal);
}
else
{
// Default to using this element calculated state
PaletteState buttonState = State;
// Update the checked state
Checked = (_ribbon.SelectedTab == RibbonTab);
// Is this tab a context tab?
bool contextTab = !string.IsNullOrEmpty(RibbonTab.ContextName);
// Apply the checked state if not fixed
if (!IsFixed)
{
if (Checked)
{
switch (buttonState)
{
case PaletteState.Normal:
case PaletteState.CheckedNormal:
case PaletteState.ContextCheckedNormal:
if (contextTab)
buttonState = PaletteState.ContextCheckedNormal;
else
buttonState = PaletteState.CheckedNormal;
break;
case PaletteState.Tracking:
case PaletteState.CheckedTracking:
case PaletteState.ContextCheckedTracking:
if (contextTab)
buttonState = PaletteState.ContextCheckedTracking;
else
buttonState = PaletteState.CheckedTracking;
break;
}
}
else
{
switch (buttonState)
{
case PaletteState.CheckedNormal:
case PaletteState.ContextCheckedNormal:
buttonState = PaletteState.Normal;
break;
case PaletteState.Tracking:
case PaletteState.CheckedTracking:
case PaletteState.ContextCheckedTracking:
if (contextTab)
buttonState = PaletteState.ContextTracking;
else
buttonState = PaletteState.Tracking;
break;
}
}
}
// Set the correct palette based on state
switch (buttonState)
{
case PaletteState.Disabled:
case PaletteState.Normal:
_overrideCurrent = _overrideStateNormal;
break;
case PaletteState.Tracking:
_overrideCurrent = _overrideStateTracking;
break;
case PaletteState.CheckedNormal:
_overrideCurrent = _overrideStateCheckedNormal;
break;
case PaletteState.CheckedTracking:
_overrideCurrent = _overrideStateCheckedTracking;
break;
case PaletteState.ContextTracking:
_overrideCurrent = _overrideStateContextTracking;
break;
case PaletteState.ContextCheckedNormal:
_overrideCurrent = _overrideStateContextCheckedNormal;
break;
case PaletteState.ContextCheckedTracking:
_overrideCurrent = _overrideStateContextCheckedTracking;
break;
default:
// Should never happen!
Debug.Assert(false);
break;
}
// Switch the child elements over to correct state
ElementState = buttonState;
// Better check we have a child!
if (Count > 0)
this[0].ElementState = buttonState;
// Update the actual source palette
_paletteContextCurrent.SetInherit(_overrideCurrent);
}
}
/// <summary>
/// Initialize a new instance of the ViewDrawRibbonTab class.
/// </summary>
/// <param name="ribbon">Reference to owning ribbon control.</param>
/// <param name="layoutTabs">Reference to view used for layout out tabs.</param>
/// <param name="needPaint">Delegate for notifying paint requests.</param>
public ViewDrawRibbonTab(KryptonRibbon ribbon,
ViewLayoutRibbonTabs layoutTabs,
NeedPaintHandler needPaint)
{
Debug.Assert(ribbon != null);
Debug.Assert(layoutTabs != null);
Debug.Assert(needPaint != null);
// Cache incoming values
_ribbon = ribbon;
_layoutTabs = layoutTabs;
_needPaint = needPaint;
// Create overrides for handling a focus state
_paletteGeneral = ribbon.StateCommon.RibbonGeneral;
_overrideStateNormal = new PaletteRibbonDoubleInheritOverride(_ribbon.OverrideFocus.RibbonTab, _ribbon.OverrideFocus.RibbonTab, _ribbon.StateNormal.RibbonTab, _ribbon.StateNormal.RibbonTab, PaletteState.FocusOverride);
_overrideStateTracking = new PaletteRibbonDoubleInheritOverride(_ribbon.OverrideFocus.RibbonTab, _ribbon.OverrideFocus.RibbonTab, _ribbon.StateTracking.RibbonTab, _ribbon.StateTracking.RibbonTab, PaletteState.FocusOverride);
_overrideStateCheckedNormal = new PaletteRibbonDoubleInheritOverride(_ribbon.OverrideFocus.RibbonTab, _ribbon.OverrideFocus.RibbonTab, _ribbon.StateCheckedNormal.RibbonTab, _ribbon.StateCheckedNormal.RibbonTab, PaletteState.FocusOverride);
_overrideStateCheckedTracking = new PaletteRibbonDoubleInheritOverride(_ribbon.OverrideFocus.RibbonTab, _ribbon.OverrideFocus.RibbonTab, _ribbon.StateCheckedTracking.RibbonTab, _ribbon.StateCheckedTracking.RibbonTab, PaletteState.FocusOverride);
_overrideStateContextTracking = new PaletteRibbonDoubleInheritOverride(_ribbon.OverrideFocus.RibbonTab, _ribbon.OverrideFocus.RibbonTab, _ribbon.StateContextTracking.RibbonTab, _ribbon.StateContextTracking.RibbonTab, PaletteState.FocusOverride);
_overrideStateContextCheckedNormal = new PaletteRibbonDoubleInheritOverride(_ribbon.OverrideFocus.RibbonTab, _ribbon.OverrideFocus.RibbonTab, _ribbon.StateContextCheckedNormal.RibbonTab, _ribbon.StateContextCheckedNormal.RibbonTab, PaletteState.FocusOverride);
_overrideStateContextCheckedTracking = new PaletteRibbonDoubleInheritOverride(_ribbon.OverrideFocus.RibbonTab, _ribbon.OverrideFocus.RibbonTab, _ribbon.StateContextCheckedTracking.RibbonTab, _ribbon.StateContextCheckedTracking.RibbonTab, PaletteState.FocusOverride);
_overrideCurrent = _overrideStateNormal;
// Create and default the setup of the context colors provider
_paletteContextCurrent = new PaletteRibbonContextDouble(_ribbon);
_paletteContextCurrent.SetInherit(_overrideCurrent);
// Use a class to convert from ribbon tab to content interface
_contentProvider = new RibbonTabToContent(_paletteGeneral, _paletteContextCurrent);
// Use a controller to change state because of mouse movement
RibbonTabController controller = new RibbonTabController(_ribbon, this, _needPaint);
controller.Click += new MouseEventHandler(OnTabClicked);
controller.ContextClick += new MouseEventHandler(OnTabContextClicked);
MouseController = controller;
SourceController = controller;
KeyController = controller;
// Associate this view with the source component (required for design time selection)
Component = _ribbonTab;
// Create and add the draw content for display inside the tab
Add(new ViewDrawContent(_contentProvider, this, VisualOrientation.Top, true, false));
// Create the state specific memento array
_mementos = new IDisposable[Enum.GetValues(typeof(PaletteState)).Length];
}
/// <summary>
/// Sets the inheritence parent.
/// </summary>
public void SetInherit(PaletteRibbonDoubleInheritOverride inherit)
{
_inherit = inherit;
}