private void RasterizeAcceleratorOverlay(ref UIOperationContext context, ref ImperativeRenderer renderer)
{
var activeModal = ActiveModal;
Control shiftTab = ResolveProxies(PickRotateFocusTarget(false, -1)),
tab = ResolveProxies(PickRotateFocusTarget(false, 1)),
ctrlShiftTab = (activeModal?.RetainFocus == true) ? null : ResolveProxies(PickRotateFocusTarget(true, -1)),
ctrlTab = (activeModal?.RetainFocus == true) ? null : ResolveProxies(PickRotateFocusTarget(true, 1));
var targetGroup = renderer.MakeSubgroup();
var labelGroup = renderer.MakeSubgroup();
RasterizedOverlayBoxes.Clear();
if (Focused != null)
{
RasterizedOverlayBoxes.Add(new RasterizedOverlayBox {
Control = Focused,
ControlBox = Focused.GetRect(contentRect: true)
});
}
// FIXME: This looks confusing
// RasterizeAcceleratorOverlay(context, ref labelGroup, ref targetGroup, Focused, null);
var topLevelSource = TopLevelFocused as IAcceleratorSource;
if (topLevelSource != null)
{
labelGroup = renderer.MakeSubgroup();
foreach (var accel in topLevelSource.Accelerators)
{
RasterizeAcceleratorOverlay(context, ref labelGroup, ref targetGroup, accel, true);
}
}
RasterizeAcceleratorOverlay(context, ref labelGroup, ref targetGroup, tab, FocusForward);
if (shiftTab != tab)
{
RasterizeAcceleratorOverlay(context, ref labelGroup, ref targetGroup, shiftTab, FocusBackward);
}
if ((ctrlTab != TopLevelFocused) || (ctrlShiftTab != TopLevelFocused))
{
if (ctrlTab != tab)
{
RasterizeAcceleratorOverlay(context, ref labelGroup, ref targetGroup, ctrlTab, WindowFocusForward);
}
if (ctrlTab != ctrlShiftTab)
{
RasterizeAcceleratorOverlay(context, ref labelGroup, ref targetGroup, ctrlShiftTab, WindowFocusBackward);
}
}
var focusedSource = Focused as IAcceleratorSource;
if ((focusedSource != null) && (focusedSource != topLevelSource))
{
labelGroup = renderer.MakeSubgroup();
foreach (var accel in focusedSource.Accelerators)
{
RasterizeAcceleratorOverlay(context, ref labelGroup, ref targetGroup, accel, true);
}
}
}