DotNet 4.8.1 build of DotNetBar
This commit is contained in:
521
PROMS/DotNetBar Source Code/TreeGX/TreeGXDesigner.cs
Normal file
521
PROMS/DotNetBar Source Code/TreeGX/TreeGXDesigner.cs
Normal file
@@ -0,0 +1,521 @@
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using System;
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using System.Collections;
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using System.ComponentModel;
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using System.ComponentModel.Design;
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using System.Drawing;
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using System.Windows.Forms;
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using System.Windows.Forms.Design;
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namespace DevComponents.Tree
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{
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/// <summary>
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/// Represents windows forms designer for the control.
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/// </summary>
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public class TreeGXDesigner:ParentControlDesigner
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{
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#region Private Variables
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// private Point m_MouseDownPosition=Point.Empty;
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// private bool m_IgnoreMouseUp=false;
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// private bool m_Capture=false;
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private bool m_DragDropStarted=false;
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const int WM_RBUTTONDOWN=0x0204;
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const int WM_LBUTTONDOWN=0x0201;
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const int WM_LBUTTONUP=0x0202;
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const int WM_RBUTTONUP=0x0205;
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const int WM_MOUSEMOVE=0x0200;
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const int WM_LBUTTONDBLCLK=0x0203;
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#endregion
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public override void Initialize(IComponent component)
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{
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base.Initialize(component);
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if(!component.Site.DesignMode)
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return;
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ISelectionService ss =(ISelectionService)GetService(typeof(ISelectionService));
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if(ss!=null)
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ss.SelectionChanged+=new EventHandler(OnSelectionChanged);
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// If our component is removed we need to clean-up
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IComponentChangeService cc=(IComponentChangeService)GetService(typeof(IComponentChangeService));
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if(cc!=null)
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cc.ComponentRemoving+=new ComponentEventHandler(this.OnComponentRemoving);
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}
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// public override DesignerVerbCollection Verbs
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// {
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// get
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// {
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// DesignerVerb[] verbs = new DesignerVerb[]
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// {
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// new DesignerVerb("Create Node", new EventHandler(CreateNode))};
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// return new DesignerVerbCollection(verbs);
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// }
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// }
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public override void OnSetComponentDefaults()
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{
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base.OnSetComponentDefaults();
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CreateNode(null);
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IDesignerHost dh=(IDesignerHost)GetService(typeof(IDesignerHost));
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if(dh==null)
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return;
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TreeUtilites.InitializeTree(this.Control as TreeGX,new ComponentFactory(dh));
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}
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private Node CreateNode(Node parentNode)
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{
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TreeGX tree=this.Control as TreeGX;
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IDesignerHost dh=(IDesignerHost)GetService(typeof(IDesignerHost));
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if(dh==null)
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return null;
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Node node=null;
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tree.BeginUpdate();
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try
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{
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IComponentChangeService change=this.GetService(typeof(IComponentChangeService)) as IComponentChangeService;
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if(change!=null)
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{
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if(parentNode!=null)
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change.OnComponentChanging(this.Component,TypeDescriptor.GetProperties(parentNode).Find("Nodes",true));
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else
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change.OnComponentChanging(this.Component,TypeDescriptor.GetProperties(tree).Find("Nodes",true));
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}
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node=dh.CreateComponent(typeof(Node)) as Node;
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if(node!=null)
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{
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node.Text=node.Name;
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node.Expanded = true;
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if(parentNode==null)
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tree.Nodes.Add(node);
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else
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parentNode.Nodes.Add(node);
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if(change!=null)
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{
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if(parentNode!=null)
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change.OnComponentChanged(this.Component,TypeDescriptor.GetProperties(parentNode).Find("Nodes",true),null,null);
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else
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change.OnComponentChanged(this.Component,TypeDescriptor.GetProperties(tree).Find("Nodes",true),null,null);
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}
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}
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}
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finally
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{
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tree.EndUpdate();
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}
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return node;
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}
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#region Drag & Drop support
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/// <summary>
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/// Called after node has been selected by designer as response to mouse action
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/// </summary>
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/// <param name="node">Node that is selected</param>
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protected virtual void OnNodeSelected(Node node)
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{
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}
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/// <summary>
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/// Returns whether specified node can be dragged and dropped
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/// </summary>
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/// <param name="node">Node to verify</param>
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/// <returns>true if node can be dragged and dropped</returns>
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protected virtual bool CanDragNode(Node node)
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{
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return true;
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}
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protected override void OnMouseDragBegin(int x, int y)
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{
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TreeGX tree=this.Control as TreeGX;
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if(tree==null)
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{
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base.OnMouseDragBegin(x,y);
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return;
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}
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Point pos=tree.PointToClient(new Point(x,y));
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Node node = tree.GetNodeAt(pos);
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if(node!=null)
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{
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ISelectionService selection = (ISelectionService) this.GetService(typeof(ISelectionService));
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if(selection!=null)
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{
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ArrayList arr=new ArrayList(1);
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arr.Add(node);
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selection.SetSelectedComponents(arr,SelectionTypes.MouseDown);
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OnNodeSelected(node);
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}
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tree.SelectedNode = node;
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}
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else
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tree.SelectedNode = null;
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if(node==null || !CanDragNode(node))
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{
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if(node==null)
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base.OnMouseDragBegin(x,y);
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else
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this.Control.Capture = true; // Does same as base implementation
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return;
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}
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if(tree.StartDragDrop(node))
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{
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m_DragDropStarted=true;
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// DevComponents.Tree.Interop.WinA.RECT rect = new NativeFunctions.RECT(0,0,0,0);
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// NativeFunctions.GetWindowRect(bar.Handle, ref rect);
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// Rectangle r=Rectangle.FromLTRB(rect.Left, rect.Top, rect.Right, rect.Bottom);
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// Cursor.Clip=r;
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this.Control.Capture = true;
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}
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else
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base.OnMouseDragBegin(x,y);
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}
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protected override void OnMouseDragMove(int x, int y)
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{
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if(m_DragDropStarted)
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{
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TreeGX tree=this.Control as TreeGX;
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DragEventArgs de=new DragEventArgs(null,(int)Control.ModifierKeys,x,y,DragDropEffects.All,DragDropEffects.Move);
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tree.InternalDragOver(de);
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}
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}
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protected override void OnMouseDragEnd(bool cancel)
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{
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this.Control.Capture = false;
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Cursor.Clip = Rectangle.Empty;
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TreeGX tree=this.Control as TreeGX;
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if(m_DragDropStarted)
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{
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if(tree!=null && tree.IsDragDropInProgress)
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{
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if(cancel)
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tree.InternalDragLeave();
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else
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{
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IComponentChangeService change=this.GetService(typeof(IComponentChangeService)) as IComponentChangeService;
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Node dragNode=tree.GetDragNode().Tag as Node;
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Node newParent=tree.GetDragNode().Parent;
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Node parent=dragNode.Parent;
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if(change!=null)
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{
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if(parent!=null)
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change.OnComponentChanging(this.Component,TypeDescriptor.GetProperties(parent).Find("Nodes",true));
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else
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change.OnComponentChanging(this.Component,TypeDescriptor.GetProperties(tree).Find("Nodes",true));
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if(newParent!=null)
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change.OnComponentChanging(this.Component,TypeDescriptor.GetProperties(newParent).Find("Nodes",true));
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else
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change.OnComponentChanging(this.Component,TypeDescriptor.GetProperties(tree).Find("Nodes",true));
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}
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tree.InternalDragDrop(new DragEventArgs(null,0,0,0,DragDropEffects.None,DragDropEffects.None));
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if(change!=null)
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{
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if(parent!=null)
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change.OnComponentChanged(this.Component,TypeDescriptor.GetProperties(parent).Find("Nodes",true),null,null);
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else
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change.OnComponentChanged(this.Component,TypeDescriptor.GetProperties(tree).Find("Nodes",true),null,null);
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if(newParent!=null)
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change.OnComponentChanged(this.Component,TypeDescriptor.GetProperties(newParent).Find("Nodes",true),null,null);
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else
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change.OnComponentChanged(this.Component,TypeDescriptor.GetProperties(tree).Find("Nodes",true),null,null);
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}
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}
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}
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cancel=true;
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}
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else
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{
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if(tree.SelectedNode!=null)
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cancel=true;
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}
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m_DragDropStarted = false;
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base.OnMouseDragEnd(cancel);
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}
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#endregion
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private void OnSelectionChanged(object sender,EventArgs e)
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{
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ISelectionService ss = (ISelectionService)sender;
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if(ss.PrimarySelection==this.Component)
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{
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TreeGX tree=this.Control as TreeGX;
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tree.SelectedNode=null;
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}
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}
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public void OnComponentRemoving(object sender,ComponentEventArgs e)
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{
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if(e.Component==this.Component)
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{
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IDesignerHost dh=(IDesignerHost)GetService(typeof(IDesignerHost));
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if(dh==null)
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return;
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ArrayList list = new ArrayList(this.AssociatedComponents);
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foreach(IComponent c in list)
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dh.DestroyComponent(c);
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}
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}
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/// <summary>
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/// Returns all components associated with this control
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/// </summary>
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public override ICollection AssociatedComponents
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{
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get
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{
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ArrayList c=new ArrayList(base.AssociatedComponents);
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TreeGX tree=this.Control as TreeGX;
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if(tree!=null)
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{
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foreach(Node node in tree.Nodes)
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GetNodesRecursive(node,c);
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foreach(ElementStyle style in tree.Styles)
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c.Add(style);
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if(tree.NodesConnector!=null)
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c.Add(tree.NodesConnector);
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if(tree.RootConnector!=null)
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c.Add(tree.RootConnector);
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if(tree.LinkConnector!=null)
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c.Add(tree.LinkConnector);
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}
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return c;
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}
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}
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private void GetNodesRecursive(Node parent,ArrayList c)
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{
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c.Add(parent);
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if(parent.ParentConnector!=null)
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c.Add(parent.ParentConnector);
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foreach(Node node in parent.Nodes)
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{
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c.Add(node);
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GetNodesRecursive(node,c);
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}
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}
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/// <summary>
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/// Selection support for items on container.
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/// </summary>
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protected override void WndProc(ref Message m)
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{
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switch(m.Msg)
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{
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case WM_LBUTTONDOWN:
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{
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if(OnMouseDown(ref m,MouseButtons.Left))
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return;
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break;
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}
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case WM_RBUTTONDOWN:
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{
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if(OnMouseDown(ref m,MouseButtons.Right))
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return;
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break;
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}
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case WM_LBUTTONUP:
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{
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if(OnMouseUp(ref m,MouseButtons.Left))
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return;
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break;
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}
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case WM_RBUTTONUP:
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{
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if(OnMouseUp(ref m,MouseButtons.Right))
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return;
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break;
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}
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case WM_MOUSEMOVE:
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{
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if(OnMouseMove(ref m))
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return;
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break;
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}
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case WM_LBUTTONDBLCLK:
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{
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if(OnMouseDoubleClick())
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return;
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break;
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}
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}
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base.WndProc(ref m);
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}
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private bool OnMouseDoubleClick()
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{
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bool processed=false;
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ISelectionService selection = (ISelectionService) this.GetService(typeof(ISelectionService));
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if(selection.PrimarySelection is Node && ((Node)selection.PrimarySelection).TreeControl==this.Control)
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{
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IDesignerHost host=(IDesignerHost) this.GetService(typeof(IDesignerHost));
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if(host!=null)
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{
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IDesigner designer=host.GetDesigner(selection.PrimarySelection as IComponent);
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if(designer!=null)
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{
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designer.DoDefaultAction();
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processed=true;
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||||
}
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||||
}
|
||||
}
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return processed;
|
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}
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protected virtual bool OnMouseDown(ref Message m, MouseButtons button)
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{
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TreeGX tree=this.Control as TreeGX;
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if(tree==null)
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return false;
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Point pos=tree.PointToClient(System.Windows.Forms.Control.MousePosition);
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//m_MouseDownPosition=pos;
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Node node=tree.GetNodeAt(pos);
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if(node!=null && button==MouseButtons.Right)
|
||||
{
|
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ISelectionService selection = (ISelectionService) this.GetService(typeof(ISelectionService));
|
||||
ArrayList arr=new ArrayList(1);
|
||||
arr.Add(node);
|
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selection.SetSelectedComponents(arr,SelectionTypes.MouseDown);
|
||||
|
||||
this.OnContextMenu(System.Windows.Forms.Control.MousePosition.X,System.Windows.Forms.Control.MousePosition.Y);
|
||||
tree.SelectedNode=node;
|
||||
return true;
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
|
||||
protected virtual bool OnMouseMove(ref Message m)
|
||||
{
|
||||
// TreeGX tree=this.Control as TreeGX;
|
||||
// Point posScreen=System.Windows.Forms.Control.MousePosition;
|
||||
// Point pos=tree.PointToClient(posScreen);
|
||||
//
|
||||
// if(Control.MouseButtons==MouseButtons.Left)
|
||||
// {
|
||||
// if(m_DragDropStarted)
|
||||
// {
|
||||
// DragEventArgs de=new DragEventArgs(null,(int)Control.ModifierKeys,posScreen.X,posScreen.Y,DragDropEffects.All,DragDropEffects.Move);
|
||||
// tree.InternalDragOver(de);
|
||||
// return true;
|
||||
// }
|
||||
// if(Control.MouseButtons==MouseButtons.Left && !tree.IsCellEditing && tree.SelectedNode!=null &&
|
||||
// (Math.Abs(m_MouseDownPosition.X-pos.X)>=SystemInformation.DragSize.Width || Math.Abs(m_MouseDownPosition.Y-pos.Y)>=SystemInformation.DragSize.Height))
|
||||
// {
|
||||
// if(tree.StartDragDrop(tree.SelectedNode))
|
||||
// {
|
||||
// m_DragDropStarted=true;
|
||||
// System.Windows.Forms.Control c=System.Windows.Forms.Control.FromHandle(m.HWnd);
|
||||
// if(c!=null)
|
||||
// {
|
||||
// m_Capture=true;
|
||||
// c.Capture=true;
|
||||
// }
|
||||
// return true;
|
||||
// }
|
||||
// m_MouseDownPosition=Point.Empty;
|
||||
// }
|
||||
//
|
||||
// }
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
private bool OnMouseUp(ref Message m, MouseButtons button)
|
||||
{
|
||||
// if(m_Capture)
|
||||
// {
|
||||
// System.Windows.Forms.Control c=System.Windows.Forms.Control.FromHandle(m.HWnd);
|
||||
// if(c!=null)
|
||||
// c.Capture=false;
|
||||
// m_Capture=false;
|
||||
// }
|
||||
// m_DragDropStarted=false;
|
||||
//
|
||||
// TreeGX tree=this.Control as TreeGX;
|
||||
// if(tree!=null && tree.IsDragDropInProgress)
|
||||
// {
|
||||
// IComponentChangeService change=this.GetService(typeof(IComponentChangeService)) as IComponentChangeService;
|
||||
//
|
||||
// Node dragNode=tree.GetDragNode().Tag as Node;
|
||||
// Node newParent=tree.GetDragNode().Parent;
|
||||
// Node parent=dragNode.Parent;
|
||||
//
|
||||
// if(change!=null)
|
||||
// {
|
||||
// if(parent!=null)
|
||||
// change.OnComponentChanging(this.Component,TypeDescriptor.GetProperties(parent).Find("Nodes",true));
|
||||
// else
|
||||
// change.OnComponentChanging(this.Component,TypeDescriptor.GetProperties(tree).Find("Nodes",true));
|
||||
//
|
||||
// if(newParent!=null)
|
||||
// change.OnComponentChanging(this.Component,TypeDescriptor.GetProperties(newParent).Find("Nodes",true));
|
||||
// else
|
||||
// change.OnComponentChanging(this.Component,TypeDescriptor.GetProperties(tree).Find("Nodes",true));
|
||||
// }
|
||||
//
|
||||
// tree.InternalDragDrop(new DragEventArgs(null,0,0,0,DragDropEffects.None,DragDropEffects.None));
|
||||
//
|
||||
// if(change!=null)
|
||||
// {
|
||||
// if(parent!=null)
|
||||
// change.OnComponentChanged(this.Component,TypeDescriptor.GetProperties(parent).Find("Nodes",true),null,null);
|
||||
// else
|
||||
// change.OnComponentChanged(this.Component,TypeDescriptor.GetProperties(tree).Find("Nodes",true),null,null);
|
||||
// if(newParent!=null)
|
||||
// change.OnComponentChanged(this.Component,TypeDescriptor.GetProperties(newParent).Find("Nodes",true),null,null);
|
||||
// else
|
||||
// change.OnComponentChanged(this.Component,TypeDescriptor.GetProperties(tree).Find("Nodes",true),null,null);
|
||||
// }
|
||||
//
|
||||
// }
|
||||
//
|
||||
// if(m_IgnoreMouseUp)
|
||||
// {
|
||||
// m_IgnoreMouseUp=false;
|
||||
// return true;
|
||||
// }
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
public override SelectionRules SelectionRules
|
||||
{
|
||||
get
|
||||
{
|
||||
return (SelectionRules.AllSizeable | SelectionRules.Moveable | SelectionRules.Visible);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user