Changeset 6517 for trunk/sources/HeuristicLab.Optimization.Views/3.3/ExperimentTreeView.cs

Timestamp:

07/06/11 17:01:30 (13 years ago)

Author:

mkommend

Message:

#1555: Implemented context menu to collapse & expand nodes.

File:

• trunk/sources/HeuristicLab.Optimization.Views/3.3/ExperimentTreeView.cs (modified) (5 diffs)

trunk/sources/HeuristicLab.Optimization.Views/3.3/ExperimentTreeView.cs

@@ -498 +498 @@
     #region control events
     private void optimizerTreeView_NodeMouseDoubleClick(object sender, TreeNodeMouseClickEventArgs e) {
+      if (rightClickOccured) return;
       if (e.X < e.Node.Bounds.Left || e.X > e.Node.Bounds.Right) return;
-      optimizerTreeView.SelectedNode.Toggle();
+      e.Node.Toggle();
       IOptimizer optimizer = (IOptimizer)e.Node.Tag;
       MainFormManager.MainForm.ShowContent(optimizer);
@@ -511 +512 @@
     private void optimizerTreeView_MouseDown(object sender, MouseEventArgs e) {
       // enables deselection of treeNodes
-      if (e.Button != System.Windows.Forms.MouseButtons.Left) return;
+      if (e.Button != MouseButtons.Right) rightClickOccured = false;
       if (optimizerTreeView.SelectedNode == null) return;
       Point coordinates = new Point(e.X, e.Y);
@@ -522 +523 @@
     }
 
+
     private void optimizerTreeView_KeyDown(object sender, KeyEventArgs e) {
       if (ReadOnly) return;
@@ -542 +544 @@
       UpdateDetailsViewHost();
       RebuildImageList();
+    }
+
+    private bool rightClickOccured = true;
+    private TreeNode toolStripMenuNode = null;
+    private void optimizerTreeView_RightClick(object sender, EventArgs e) {
+      rightClickOccured = true;
+      Point coordinates = optimizerTreeView.PointToClient(Cursor.Position);
+      toolStripMenuNode = optimizerTreeView.GetNodeAt(coordinates);
+
+      if (toolStripMenuNode != null && coordinates.X >= toolStripMenuNode.Bounds.Left && coordinates.X <= toolStripMenuNode.Bounds.Right) {
+        optimizerTreeView.SelectedNode = toolStripMenuNode;
+        detailsViewHost.Content = (IContent)toolStripMenuNode.Tag;
+        SetEnabledStateOfControls();
+
+        ExpandToolStripMenuItem.Enabled = !toolStripMenuNode.IsExpanded && toolStripMenuNode.Nodes.Count > 0;
+        ExpandToolStripMenuItem.Visible = !toolStripMenuNode.IsExpanded && toolStripMenuNode.Nodes.Count > 0;
+        CollapseToolStripMenuItem.Enabled = toolStripMenuNode.IsExpanded;
+        CollapseToolStripMenuItem.Visible = toolStripMenuNode.IsExpanded;
+        if (contextMenuStrip.Items.Cast<ToolStripMenuItem>().Any(item => item.Enabled))
+          contextMenuStrip.Show(Cursor.Position);
+      }
+    }
+
+    private void ExpandToolStripMenuItem_Click(object sender, EventArgs e) {
+      if (toolStripMenuNode != null) toolStripMenuNode.ExpandAll();
+    }
+    private void CollapseToolStripMenuItem_Click(object sender, EventArgs e) {
+      if (toolStripMenuNode != null) toolStripMenuNode.Collapse();
     }
 
@@ -689 +719 @@
     }
     #endregion
+
+
+    public sealed class CustomTreeView : System.Windows.Forms.TreeView {
+      protected override void WndProc(ref System.Windows.Forms.Message m) {
+        const int WM_RBUTTONDOWN = 0x204;
+        if (m.Msg == WM_RBUTTONDOWN) {
+          //Raise your custom event right click event to prevent node highlighting
+          OnRightClick();
+          return;
+        }
+        base.WndProc(ref m);
+      }
+
+      public event EventHandler RightClick;
+      private void OnRightClick() {
+        var handler = RightClick;
+        if (handler != null) RightClick(this, EventArgs.Empty);
+      }
+    }
   }
 }