submenueditorcontrol.cs

全功能c#编译器

// <file>
//     <copyright see="prj:///doc/copyright.txt"/>
//     <license see="prj:///doc/license.txt"/>
//     <owner name="Mike Krüger" email="[e-mail]"/>
//     <version value="$version"/>
// </file>

using System;
using System.Diagnostics;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Windows.Forms;
using System.Windows.Forms.Design;
using ICSharpCode.SharpDevelop.FormDesigner.Hosts;

using System.Drawing.Design;

namespace ICSharpCode.SharpDevelop.FormDesigner {
	
	public class SubMenuEditorControl : AbstractMenuEditorControl
	{
		AbstractMenuEditorControl owner;
		
		public SubMenuEditorControl(IDesignerHost host, AbstractMenuEditorControl owner, Menu menu) : base(host, menu)
		{
			isHorizontal   = false;
			drawMenuGlyphs = true;
			borderSize     = SystemInformation.FrameBorderSize;
			SetSize(null, null);
			this.owner = owner;
		}
		
		public override void SetSize(object sender, EventArgs e)
		{
			try {
				MeasureMenuItems();
				int maxWidth = (int)base.typeArea.Width + base.borderSize.Width * 2;
				foreach (RectangleF rect in menuItemAreas) {
					maxWidth = (int)Math.Max(maxWidth, rect.Width + base.borderSize.Width * 2);
				}
				
				Size = new Size(maxWidth, base.borderSize.Height * 2 + SystemInformation.MenuHeight * (menu.MenuItems.Count + 1));
				
				if (subMenuEditor != null) {
					subMenuEditor.Location = GetSubmenuLocation(this.selectedItem);
				}
			} catch (Exception ex)  {
				Console.WriteLine(ex);
				if (Parent != null) {
					Parent.Controls.Remove(this);
				}
			}
		}
		
		protected override void OnPaintBackground(System.Windows.Forms.PaintEventArgs pevent)
		{
			base.OnPaintBackground(pevent);
			ControlPaint.DrawBorder3D(pevent.Graphics, new Rectangle(0, 0, Width, Height), Border3DStyle.Raised);
		}
		
		protected override Point GetSubmenuLocation(int menuIndex)
		{
			RectangleF r;
			if (menuItemAreas == null || menuIndex >= menu.MenuItems.Count || menuIndex < 0) {
				r = base.typeArea;
			} else {
				r = base.menuItemAreas[menuIndex];
			}
			return new Point((int)(Right - 2),
			                 (int)(Top  + r.Y));
		}
		
		
		protected override bool ProcessDialogKey(System.Windows.Forms.Keys keyData)
		{
			switch (keyData) {
				case Keys.Up:
					if (SelectedItem == 0) {
						if (!(owner is SubMenuEditorControl)) {
							owner.Focus();
						} else {
							SelectedItem = menu.MenuItems.Count;
						}
					} else {
						SelectItem(ItemSelection.Prev);
					}
					Refresh();
					return true;
				case Keys.Down:
					if (SelectedItem >= menu.MenuItems.Count) {
						if (!(owner is SubMenuEditorControl)) {
							owner.Focus();
						} else {
							SelectedItem = 0;
						}
					} else {
						SelectItem(ItemSelection.Next);
					}
					Refresh();
					return true;
				case Keys.Escape:
					owner.CloseSubMenuEditor();
					owner.Focus();
					return true;
				case Keys.Left: {
					AbstractMenuEditorControl topLevel = GetTopLevelMenuControl();
					if (topLevel == owner) {
						topLevel.Focus();
						topLevel.SelectItem(ItemSelection.Prev);
					} else {
						goto case Keys.Escape;
					}
					return true;
				}
				case Keys.Right:
					if (base.subMenuEditor != null) {
						subMenuEditor.Focus();
						subMenuEditor.SelectItem(ItemSelection.First);
					} else {
						AbstractMenuEditorControl topLevel = GetTopLevelMenuControl();
						topLevel.Focus();
						topLevel.SelectItem(ItemSelection.Next);
					}
					return true;
			}
			return base.ProcessDialogKey(keyData);
		}
		
		AbstractMenuEditorControl GetTopLevelMenuControl()
		{
			AbstractMenuEditorControl  curControl = owner;
			while (curControl is SubMenuEditorControl) {
				curControl = ((SubMenuEditorControl)curControl).owner;
			}
			return curControl;
		}
	}
}