public WpfTreeNode AddWPFTreeNode(string text)
{
WpfTreeNode node = new WpfTreeNode(text);
this.Nodes.Add(node);
return(node);
}
public WpfTreeNode AddWPFTreeNode(string text, ButtonMenu buttons)
{
WpfTreeNode node = new WpfTreeNode(text, buttons);
this.Nodes.Add(node);
return(node);
}
public Form1()
{
InitializeComponent();
ButtonMenu bm1 = new ButtonMenu(this.wpfTreeView1);
ButtonMenu bm2 = new ButtonMenu(this.wpfTreeView1);
bm1.AddButtonItems(new ButtonItem(newImage, "New File", new ButtonItemClickEventHandler(newFileClick)));
bm1.AddButtonItems(new ButtonItem(openImage, "Open File", new ButtonItemClickEventHandler(openFileClick)));
bm2.AddButtonItems(new ButtonItem(saveImage, "Save File", new ButtonItemClickEventHandler(saveFileClick)));
bm2.AddButtonItems(new ButtonItem(deleteImage, "Delete File", new ButtonItemClickEventHandler(deleteFileClick)));
bm2.AddButtonItems(new ButtonItem(copyImage, "Save File", new ButtonItemClickEventHandler(copyFileClick)));
WpfTreeNode root = this.wpfTreeView1.AddWPFTreeNode("WpfTreeView Demo");
WpfTreeNode child1 = root.AddWPFTreeNode("节点1", bm1);
WpfTreeNode child1_1 = child1.AddWPFTreeNode("节点1-1", bm2);
child1_1.AddWPFTreeNode("1");
child1_1.AddWPFTreeNode("2");
child1_1.AddWPFTreeNode("3");
child1.AddWPFTreeNode("节点1-2", bm2);
WpfTreeNode child2 = root.AddWPFTreeNode("节点2", bm1);
child2.AddWPFTreeNode("节点2-1", bm2);
WpfTreeNode child3 = root.AddWPFTreeNode("节点3", bm1);
child3.AddWPFTreeNode("节点2-1", bm2);
this.wpfTreeView1.ExpandAll();
}
protected override void OnDrawNode(DrawTreeNodeEventArgs e)
{
Font nodeFont = e.Node.NodeFont == null ? this.Font : e.Node.NodeFont;
int fontHeight = nodeFont.Height;
e.Graphics.DrawString(e.Node.Text, nodeFont, new SolidBrush(this.ForeColor), new Point(e.Node.Bounds.Location.X, e.Node.Bounds.Location.Y + e.Node.Bounds.Height / 2 - fontHeight / 2));
WpfTreeNode customNode = e.Node as WpfTreeNode;
if (customNode != null && customNode.ButtonRight == true)
{
Graphics graphics = e.Graphics;
for (int i = 0; i < customNode.buttonMenu.buttonItems.Count; i++)
{
Rectangle btnBounds = getBtnBoundsOfNode(customNode, i);
Image image = getBtnImageOfNode(customNode, i);
graphics.DrawImage(image, btnBounds);
//Draw tip
if (customNode.buttonMenu.buttonItems[i]._mouseHover)
{
string tipStr = customNode.buttonMenu.buttonItems[i].tip;
if (tipStr != null && tipStr != "")
{
Brush brush1 = new SolidBrush(Color.White);
Brush brush2 = new SolidBrush(Color.Gray);
Pen pen = new Pen(Color.FromArgb(197, 197, 197));
Font font = new Font("微软雅黑", 10);
Rectangle lastBtnBounds = getBtnBoundsOfNode(customNode, customNode.buttonMenu.buttonItems.Count - 1);
Point textLocation = new Point(lastBtnBounds.Location.X + lastBtnBounds.Width, lastBtnBounds.Location.Y - 30);
SizeF textSize = graphics.MeasureString(tipStr, font);
PointF location = new PointF(textLocation.X - 3, textLocation.Y - 2);
RectangleF rect = new RectangleF(location, new SizeF(textSize.Width + 6, textSize.Height + 4));
graphics.FillRectangle(brush1, rect);
graphics.DrawRectangle(pen, rect.Location.X, rect.Location.Y, rect.Width, rect.Height);
graphics.DrawString(tipStr, font, brush2, textLocation);
}
}
}
}
}
protected override void OnMouseDown(MouseEventArgs e)
{
WpfTreeNode tnode = GetNodeAt(e.Location) as WpfTreeNode;
if (tnode == null)
{
return;
}
for (int i = 0; i < tnode.buttonMenu.buttonItems.Count; i++)
{
Rectangle btnBounds = getBtnBoundsOfNode(tnode, i);
if (btnBounds.Contains(e.Location))
{
tnode.BtnClick(i);
break;
}
}
}
private void MouseMoveListener(object sender, MouseEventArgs e)
{
List <TreeNode> nodes = this.GetAllNodes();
foreach (TreeNode node in nodes)
{
WpfTreeNode customTreeNode = node as WpfTreeNode;
if (customTreeNode != null)
{
Rectangle nodeBounds = getNodeBounds(customTreeNode);
if (e.Location.X >= nodeBounds.X && e.Location.X <= nodeBounds.X + nodeBounds.Width && e.Location.Y >= nodeBounds.Y && e.Location.Y <= nodeBounds.Y + nodeBounds.Height)
{
//Whether mouse is hover on the button
foreach (ButtonItem item in customTreeNode.buttonMenu.buttonItems)
{
item._mouseHover = false;
}
for (int i = 0; i < customTreeNode.buttonMenu.buttonItems.Count; i++)
{
Rectangle btnBounds = getBtnBoundsOfNode(customTreeNode, i);
if (btnBounds.Contains(e.Location))
{
customTreeNode.buttonMenu.buttonItems[i]._mouseHover = true;
}
}
if (customTreeNode.mouseHover == false)
{
customTreeNode.mouseEnter();
}
}
else
{
if (customTreeNode.mouseHover == true)
{
customTreeNode.mouseLeave();
}
}
this.Invalidate();
}
}
}
private Image getBtnImageOfNode(WpfTreeNode node, int btnIndex)
{
Image image = node.buttonMenu.buttonItems[btnIndex].image;
return(image);
}