GMF的Logic照猫画虎之一：在工具箱palette中添加新的工具

在help里面，Logic的例子提到，添加palette中的控件可以是以下几步：

1.添加扩展点：

org.eclipse.gmf.runtime.diagram.ui.paletteProviders

2.我们在plugin.xml中添加下面的代码（在最后的entry中，我加入了Test这个控件）：

View Code 
 1   <!-- Palette Provider -->
 2          <extension
 3          id="logicPaletteProvider"
 4          name="%ext.logicPaletteProvider"
 5          point="org.eclipse.gmf.runtime.diagram.ui.paletteProviders">
 6        <paletteProvider class="org.eclipse.gmf.runtime.diagram.ui.providers.DefaultPaletteProvider">
 7          <Priority name="Highest">
 8          </Priority>
 9          <editor id="LogicEditor">
10          </editor>
11          <!--   class=&quot;org.eclipse.gmf.runtime.diagram.ui.parts.IDiagramWorkbenchPart&quot;-->
12          <contribution factoryClass="org.eclipse.gmf.examples.runtime.diagram.logic.internal.providers.LogicPaletteFactory">
13             <entry label="%LogicDrawer.Label" kind="drawer" description="%LogicDrawer.Description" path="/" small_icon="icons/comp.gif" id="logicDrawer">
14                <expand>
15                   <content>
16                       <!-- expand by default for LogicEditors -->
17                   </content>
18                </expand>
19             </entry>
20             <entry label="%LogicFlowTool.Label" kind="tool" description="%LogicFlowTool.Description" large_icon="icons/logicflow24.gif" path="/logicDrawer/" small_icon="icons/logicflow16.gif" id="FlowContainer">
21             </entry>
22             <entry label="%CircuitTool.Label" kind="tool" description="%CircuitTool.Description" large_icon="icons/circuit24.gif" path="/logicDrawer/" small_icon="icons/circuit16.gif" id="circuit">
23             </entry>
24             <entry label="%LEDTool.Label" kind="tool" description="%LEDTool.Description" large_icon="icons/ledicon24.gif" path="/logicDrawer/" small_icon="icons/ledicon16.gif" id="LED">
25             </entry>
26             <entry label="%GateStack.Label" kind="stack" description="%GateStack.Description" small_icon="icons/or24.gif" path="/logicDrawer/" id="noteStack">
27             </entry>
28             <entry label="%OrGateTool.Label" kind="tool" description="%OrGateTool.Description" large_icon="icons/or24.gif" path="/logicDrawer/noteStack/" small_icon="icons/or16.gif" id="OrGate">
29             </entry>
30             <entry label="%AndGateTool.Label" kind="tool" description="%AndGateTool.Description" large_icon="icons/and24.gif" path="/logicDrawer/noteStack/" small_icon="icons/and16.gif" id="AndGate">
31             </entry>
32             <entry label="%XORGateTool.Label" kind="tool" description="%XORGateTool.Description" large_icon="icons/xor24.gif" path="/logicDrawer/noteStack/" small_icon="icons/xor16.gif" id="XORGate">
33             </entry>
34             <entry label="%ConnectionTool.Label" kind="tool" description="%ConnectionTool.Description" path="/logicDrawer/" small_icon="icons/connection16.gif" large_icon="icons/connection24.gif" id="wire">
35             </entry>
36             <entry label="%LogicTestTool.Label" kind="tool" description="%LogicTestTool.Desrciption" path="/logicDrawer/" small_icon="icons/connection16.gif" large_icon="icons/xor24.gif" id="Test">
37             </entry>
38          </contribution>
39          <contribution>
40             <predefinedEntry
41                   id="geoshapeDrawer"
42                   path="/">
43                <expand force="true"/>
44             </predefinedEntry>
45          </contribution>
46       </paletteProvider>
47    </extension>

即可发现，在编辑器中出现了我实验的结果

3.工厂模式生成控件，PaletteFactory方法是GMF的service infrastructure中所提供一个方法

工厂方法LogicPaletteFactory是在plugin.xml中的 <contribution factoryClass="org.eclipse.gmf.examples.runtime.diagram.logic.internal.providers.LogicPaletteFactory">指定的


View Code 
 1 package org.eclipse.gmf.examples.runtime.diagram.logic.internal.providers;
 2 
 3 import org.eclipse.gef.Tool;
 4 import org.eclipse.gmf.examples.runtime.diagram.logic.semantic.util.LogicSemanticType;
 5 import org.eclipse.gmf.runtime.diagram.ui.services.palette.PaletteFactory;
 6 import org.eclipse.gmf.runtime.diagram.ui.tools.ConnectionCreationTool;
 7 import org.eclipse.gmf.runtime.diagram.ui.tools.CreationTool;
 8 
 9 
10 public class LogicPaletteFactory extends PaletteFactory.Adapter
11 {
12 
13     /*
14      * Create the tool according to type
15 */
16     public Tool createTool(String toolId)
17     {
18         if (toolId.equals(LogicConstants.TOOL_LED))
19         {
20             return new CreationTool(LogicSemanticType.LED);
21         } else if (toolId.equals(LogicConstants.TOOL_CIRCUIT))
22         {
23             return new CreationTool(LogicSemanticType.CIRCUIT);
24         } else if (toolId.equals(LogicConstants.TOOL_ORGATE))
25         {
26             return new CreationTool(LogicSemanticType.ORGATE);
27         } else if (toolId.equals(LogicConstants.TOOL_ANDGATE))
28         {
29             return new CreationTool(LogicSemanticType.ANDGATE);
30         } else if (toolId.equals(LogicConstants.TOOL_XORGATE))
31         {
32             return new CreationTool(LogicSemanticType.XORGATE);
33         } else if (toolId.equals(LogicConstants.TOOL_FLOWCONTAINER))
34         {
35             return new CreationTool(LogicSemanticType.FLOWCONTAINER);
36 
37         } else if (toolId.equals(LogicConstants.TOOL_CONNECTION))
38         {
39             return new ConnectionCreationTool(LogicSemanticType.WIRE);
40         } else if (toolId.equals(LogicConstants.LOGIC_TEST))
41         {
42             return new CreationTool(LogicSemanticType.LogicTest); 
43         }
44         return null;
45     }
46 }

 

在添加完以后，可以看到鼠标点击Test后在画布上已经是一个创建工具的标志了，但是并无法创建工具，这是因为我们仍没有为Test添加MVC的三个部分：model、view、part。

 

posted @ 2011-11-15 14:48  Sonald  阅读(430)  评论(0)  编辑  收藏  举报