int GetGalleryColumns(DependencyObject control, int level, int maxLevels)
{
RibbonGalleryColumns columns = RibbonGallery.GetReductionColumns(control);
if (columns != null && columns.Count > 0)
{
level = Math.Max(0, Math.Min(level, columns.Count - 1));
return(columns[level]);
}
if (level == maxLevels)
{
return(0);
}
if (maxLevels > 4)
{
level = Math.Max(level, 8);
return(3 + (4 - level / 2));
}
else
{
return(3 + (2 - level) * 2);
}
}
static void ReductionColumnsPropertyChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
{
RibbonGallery g = o as RibbonGallery;
if (g != null)
{
RibbonGalleryColumns columns = e.NewValue as RibbonGalleryColumns;
if (columns != null && columns.Count > 0)
{
g.Columns = columns[0];
}
}
}
public override object ConvertFrom(ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value)
{
string str = value as string;
if (str == null)
{
return base.ConvertFrom(context, culture, value);
}
str = str.Trim();
if (str.Length == 0) return null;
string[] names = str.Split(',');
RibbonGalleryColumns collection = new RibbonGalleryColumns();
foreach (string name in names)
{
collection.Add(int.Parse(name));
}
return collection;
}
//Gets the maximum possible ReductionLevel that would change any of the controls.
private int GetMaxLevel()
{
int max = 1;
foreach (UIElement e in Controls)
{
if (e is IRibbonControl)
{
RibbonSizeCollection reduction = RibbonBar.GetReduction(e);
int m = reduction != null ? reduction.Count : 3;
max = Math.Max(max, m);
}
if (e is IRibbonGallery)
{
RibbonGalleryColumns columns = RibbonGallery.GetReductionColumns(e);
int m = columns != null ? columns.Count : 3;
max = Math.Max(max, m);
}
}
return(max);
}
public override object ConvertFrom(ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value)
{
string str = value as string;
if (str == null)
{
return(base.ConvertFrom(context, culture, value));
}
str = str.Trim();
if (str.Length == 0)
{
return(null);
}
string[] names = str.Split(',');
RibbonGalleryColumns collection = new RibbonGalleryColumns();
foreach (string name in names)
{
collection.Add(int.Parse(name));
}
return(collection);
}
public static void SetReductionColumns(DependencyObject obj, RibbonGalleryColumns value)
{
obj.SetValue(ReductionColumnsProperty, value);
}
public static void SetReductionColumns(DependencyObject obj, RibbonGalleryColumns value)
{
obj.SetValue(ReductionColumnsProperty, value);
}
