/// <summary>
/// Change the RibbonSize for every IRibbonControl inside this group.
/// </summary>
private void ChangeControlSizes()
{
int level = ReductionLevel;
int maxLevels = GetMaxLevel();
bool minimized = level >= maxLevels;
IsMinimized = minimized;
if (minimized)
{
level = 0;
}
for (int i = 0; i < Controls.Count; i++)
{
UIElement e = Controls[i];
IRibbonGallery gallery = e as IRibbonGallery;
if (gallery != null)
{
int columns = GetGalleryColumns(e, level, maxLevels);
gallery.Columns = columns;
gallery.IsCollapsed = columns == 0;
gallery.SetDropDownColumns(GetGalleryColumns(e, 0, maxLevels));
}
else
{
if (e is IRibbonControl)
{
RibbonSize size = GetControlSize(e, level, i);
RibbonBar.SetSize(e, size);
}
}
}
InvalidateMeasure();
UpdateLayout();
}
protected override void PrepareContainerForItemOverride(DependencyObject element, object item)
{
base.PrepareContainerForItemOverride(element, item);
IRibbonButton b = element as IRibbonButton;
if (b != null)
{
RibbonBar.SetSize(element, RibbonSize.Small);
}
}
protected override System.Windows.Size MeasureOverride(System.Windows.Size constraint)
{
itemsHost.Children.Clear();
if (overflowHost != null)
{
overflowHost.Children.Clear();
}
CreateMenuItems();
foreach (UIElement e in GetToolbarItems())
{
RibbonBar.SetSize(e, RibbonSize.Small);
itemsHost.Children.Add(e);
}
HasOverflowItems = false;
Size maxSize = base.MeasureOverride(new Size(double.PositiveInfinity, constraint.Height));
while (maxSize.Width > constraint.Width)
{
int n = itemsHost.Children.Count;
if (n == 0)
{
break;
}
UIElement e = itemsHost.Children[n - 1];
InvalidateAncestorMeasure(e);
itemsHost.Children.RemoveAt(n - 1);
if (overflowHost != null)
{
overflowHost.Children.Insert(0, e);
HasOverflowItems = true;
}
maxSize = base.MeasureOverride(new Size(double.PositiveInfinity, constraint.Height));
}
Size size = base.MeasureOverride(constraint);
return(size);
}