private void TemplateTree_DragEnter(object sender, System.Windows.Forms.DragEventArgs e)
{
Point point = TemplateTree.PointToClient(new Point(e.X, e.Y));
DragHelper.ImageList_DragEnter(TemplateTree.Handle, point.X, point.Y);
e.Effect = DragDropEffects.Move;
}
void TemplateTree_DragOver(object sender, DragEventArgs e)
{
Point point = TemplateTree.PointToClient(new Point(e.X, e.Y));
DragHelper.ImageList_DragMove(point.X, point.Y);
e.Effect = DragDropEffects.Move;
}
private void TemplateTree_MouseUp(object sender, MouseEventArgs e)
{
if (Yqun.Common.ContextCache.ApplicationContext.Current.IsAdministrator)
{
if (e.Button == MouseButtons.Right)
{
Point pt = TemplateTree.PointToClient(Cursor.Position);
TreeNode Node = TemplateTree.HitTest(pt).Node;
TemplateTree.SelectedNode = Node;
ModelContextMenu.Show(TemplateTree, pt);
}
}
}
void TemplateTree_ItemDrag(object sender, ItemDragEventArgs e)
{
TreeNode Node = e.Item as TreeNode;
Boolean IsModule = Convert.ToBoolean(Node.Tag);
if (IsModule)
{
dragNode = e.Item as TreeNode;
TemplateTree.SelectedNode = dragNode;
int imageWidth = dragNode.Bounds.Size.Width + TemplateTree.Indent;
imageListDrag.Images.Clear();
imageListDrag.ImageSize = new Size(imageWidth > 255 ? 255 : imageWidth, dragNode.Bounds.Height);
Bitmap bmp = new Bitmap(dragNode.Bounds.Width + TemplateTree.Indent, dragNode.Bounds.Height);
Graphics gfx = Graphics.FromImage(bmp);
gfx.DrawImage(imageList1.Images[dragNode.ImageIndex], 0, 0);
gfx.DrawString(dragNode.Text, TemplateTree.Font,
new SolidBrush(TemplateTree.ForeColor),
(float)TemplateTree.Indent, 1.0f);
imageListDrag.Images.Add(bmp);
Point p = TemplateTree.PointToClient(Control.MousePosition);
int dx = p.X + TemplateTree.Indent - dragNode.Bounds.Left;
int dy = p.Y - dragNode.Bounds.Top;
if (DragHelper.ImageList_BeginDrag(imageListDrag.Handle, 0, dx, dy))
{
TemplateTree.DoDragDrop(bmp, DragDropEffects.Move);
DragHelper.ImageList_EndDrag();
}
}
else
{
return;
}
}