[WPF] fix immediate tab label expanding

Invalidate measure of each TabItem, when the ExpandTabLabels property changes, forcing Wpf to reeavluate the tab sizes.
mono · Jan 23, 2015 · 30c4627 · 30c4627
1 parent 40501c7
commit 30c4627
Showing 1 changed file with 11 additions and 1 deletion.
diff --git a/Xwt.WPF/Xwt.WPFBackend/NotebookBackend.cs b/Xwt.WPF/Xwt.WPFBackend/NotebookBackend.cs
@@ -193,7 +193,17 @@ class WpfNotebook : SWC.TabControl, IWpfWidget
 	{
 		public WidgetBackend Backend { get; set; }
 
-		public bool ExpandTabLabels { get; set; }
+		bool expandTabLabels;
+		public bool ExpandTabLabels {
+			get {
+				return expandTabLabels;
+			}
+			set {
+				expandTabLabels = value;
+				foreach (var tab in Items.Cast<TabItem> ())
+					tab.InvalidateMeasure ();
+			}
+		}
 
 		protected override System.Windows.Size MeasureOverride (System.Windows.Size constraint)
 		{