Code:
/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / Designer / WinForms / System / WinForms / Design / TreeViewDesigner.cs / 1 / TreeViewDesigner.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* */ [assembly: System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode", Scope="member", Target="System.Windows.Forms.Design.TreeViewDesigner..ctor()")] namespace System.Windows.Forms.Design { using System.Diagnostics; using System; using System.Design; using System.Drawing; using System.Windows.Forms; using Microsoft.Win32; using System.ComponentModel.Design; using System.ComponentModel; ////// /// This is the designer for tree view controls. It inherits /// from the base control designer and adds live hit testing /// capabilites for the tree view control. /// internal class TreeViewDesigner : ControlDesigner { private NativeMethods.TV_HITTESTINFO tvhit = new NativeMethods.TV_HITTESTINFO(); private DesignerActionListCollection _actionLists; private TreeView treeView = null; public TreeViewDesigner() { AutoResizeHandles = true; } ////// Disposes of this object. /// protected override void Dispose(bool disposing) { if (disposing) { if (treeView != null) { treeView.AfterExpand -= new System.Windows.Forms.TreeViewEventHandler(TreeViewInvalidate); treeView.AfterCollapse -= new System.Windows.Forms.TreeViewEventHandler(TreeViewInvalidate); treeView = null; } } base.Dispose(disposing); } ////// /// protected override bool GetHitTest(Point point) { point = Control.PointToClient(point); tvhit.pt_x = point.X; tvhit.pt_y = point.Y; NativeMethods.SendMessage(Control.Handle, NativeMethods.TVM_HITTEST, 0, tvhit); if (tvhit.flags == NativeMethods.TVHT_ONITEMBUTTON) return true; return false; } public override void Initialize(IComponent component) { base.Initialize(component); treeView = component as TreeView; Debug.Assert(treeView != null, "TreeView is null in TreeViewDesigner"); if (treeView != null) { treeView.AfterExpand += new System.Windows.Forms.TreeViewEventHandler(TreeViewInvalidate); treeView.AfterCollapse += new System.Windows.Forms.TreeViewEventHandler(TreeViewInvalidate); } } private void TreeViewInvalidate(object sender, TreeViewEventArgs e) { if (treeView != null) { treeView.Invalidate(); } } public override DesignerActionListCollection ActionLists { get { if (_actionLists == null) { _actionLists = new DesignerActionListCollection(); _actionLists.Add(new TreeViewActionList(this)); } return _actionLists; } } } internal class TreeViewActionList : DesignerActionList { private TreeViewDesigner _designer; public TreeViewActionList(TreeViewDesigner designer) : base(designer.Component) { _designer = designer; } public void InvokeNodesDialog() { EditorServiceContext.EditValue(_designer, Component, "Nodes"); } public ImageList ImageList { get { return ((TreeView)Component).ImageList; } set { TypeDescriptor.GetProperties(Component)["ImageList"].SetValue(Component, value); } } public override DesignerActionItemCollection GetSortedActionItems() { DesignerActionItemCollection items = new DesignerActionItemCollection(); items.Add(new DesignerActionMethodItem(this, "InvokeNodesDialog", SR.GetString(SR.InvokeNodesDialogDisplayName), SR.GetString(SR.PropertiesCategoryName), SR.GetString(SR.InvokeNodesDialogDescription), true)); items.Add(new DesignerActionPropertyItem("ImageList", SR.GetString(SR.ImageListDisplayName), SR.GetString(SR.PropertiesCategoryName), SR.GetString(SR.ImageListDescription))); return items; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.Allows your component to support a design time user interface. A TabStrip /// control, for example, has a design time user interface that allows the user /// to click the tabs to change tabs. To implement this, TabStrip returns /// true whenever the given point is within its tabs. ///
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