menuitemdoozer.cs

SharpDevelop2.0.0 c#开发免费工具

// <file>
//     <copyright see="prj:///doc/copyright.txt"/>
//     <license see="prj:///doc/license.txt"/>
//     <owner name="Mike Krüger" email="[e-mail]"/>
//     <version>$Revision: 915 $</version>
// </file>

using System;
using System.Windows.Forms;
using System.Collections;

namespace ICSharpCode.Core
{
	/// <summary>
	/// Creates menu items from a location in the addin tree.
	/// </summary>
	/// <attribute name="label" use="required">
	/// Label of the menu item.
	/// </attribute>
	/// <attribute name="type" use="optional" enum="Separator;CheckBox;Item;Command;Menu;Builder">
	/// This attribute must be one of these values:
	/// Separator, CheckBox, Item=Command, Menu (=with subitems),
	/// Builder (=class implementing ISubmenuBuilder).
	/// Default: Command.
	/// </attribute>
	/// <attribute name="loadclasslazy" use="optional">
	/// Only for the type "Item"/"Command".
	/// When set to false, the command class is loaded
	/// immediately instead of the usual lazy-loading.
	/// </attribute>
	/// <attribute name="icon" use="optional">
	/// Icon of the menu item.
	/// </attribute>
	/// <attribute name="class" use="optional">
	/// Command class that is run when item is clicked.
	/// </attribute>
	/// <attribute name="link" use="optional">
	/// Only for the type "Item"/"Command". Opens a webpage instead of running a command when
	/// clicking the item.
	/// </attribute>
	/// <attribute name="shortcut" use="optional">
	/// Shortcut that activates the command (e.g. "Control|S").
	/// </attribute>
	/// <children childTypes="MenuItem">
	/// If "type" is "Menu", the item can have sub-menuitems.
	/// </children>
	/// <usage>Any menu strip paths or context menu paths, e.g. /SharpDevelop/Workbench/MainMenu</usage>
	/// <returns>
	/// Any ToolStrip* object, depending on the type attribute.
	/// </returns>
	/// <conditions>Conditions are handled by the item, "Exclude" maps to "Visible = false", "Disable" to "Enabled = false"</conditions>
	public class MenuItemDoozer : IDoozer
	{
		/// <summary>
		/// Gets if the doozer handles codon conditions on its own.
		/// If this property return false, the item is excluded when the condition is not met.
		/// </summary>
		public bool HandleConditions {
			get {
				return true;
			}
		}
		
		public object BuildItem(object caller, Codon codon, ArrayList subItems)
		{
			string type = codon.Properties.Contains("type") ? codon.Properties["type"] : "Command";
			
			bool createCommand = codon.Properties["loadclasslazy"] == "false";
			
			switch (type) {
				case "Separator":
					return new MenuSeparator(codon, caller);
				case "CheckBox":
					return new MenuCheckBox(codon, caller);
				case "Item":
				case "Command":
					return new MenuCommand(codon, caller, createCommand);
				case "Menu":
					return new Menu(codon, caller, subItems);
				case "Builder":
					return codon.AddIn.CreateObject(codon.Properties["class"]);
				default:
					throw new System.NotSupportedException("unsupported menu item type : " + type);
			}
		}
	}
}