西门子 Teamcenter13 Eclipse RCP 开发 1.3 工具栏 单选按钮

1 配置文件

<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.4"?>
<plugin><extension point="org.eclipse.ui.menus"><menuContribution locationURI="toolbar:org.eclipse.ui.main.toolbar"><toolbar id="com.example.toolbar"><command commandId="com.xu.work.tool.bar" icon="icons/sample.png" label="单选按钮1" style="radio"><parameter name="option" value="1"/></command><command commandId="com.xu.work.tool.bar" icon="icons/sample.png" label="单选按钮2" style="radio"><parameter name="option" value="2"/></command><command commandId="com.xu.work.tool.bar" icon="icons/sample.png" label="单选按钮3" style="radio"><parameter name="option" value="3"/></command></toolbar></menuContribution></extension><extension point="org.eclipse.ui.commands"><command id="com.xu.work.tool.bar" name="工具栏:单选按钮" defaultHandler="com.xu.work.tool3.handlers.SampleHandler"><commandParameter id="option" name="选项" optional="false"/></command></extension></plugin>

2 插件控制

package com.xu.work.tool2;import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.osgi.framework.BundleContext;/*** 插件激活器类，控制插件的生命周期*/
public class Activator extends AbstractUIPlugin {/*** 插件ID常量，通常与MANIFEST.MF中的Bundle-SymbolicName一致*/public static final String PLUGIN_ID = "com.xu.work.tool2"; //$NON-NLS-1$/*** 单例实例引用*/private static Activator plugin;/*** 构造函数*/public Activator() {}/*** 插件启动时调用*/@Overridepublic void start(BundleContext context) throws Exception {super.start(context);plugin = this;// 在这里注册监听器、服务、加载配置等}/*** 插件停止时调用*/@Overridepublic void stop(BundleContext context) throws Exception {plugin = null;super.stop(context);}/*** 返回此插件的共享实例** @return 共享实例*/public static Activator getDefault() {return plugin;}}

3 命令框架

package com.xu.work.tool3.handlers;import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.commands.State;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.commands.ICommandService;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.handlers.RadioState;public class SampleHandler extends AbstractHandler {// 按钮idprivate static final String RADIO_COMMEND_ID = "com.xu.work.tool.bar";@Overridepublic Object execute(ExecutionEvent event) throws ExecutionException {// 获取选项参数String option = event.getParameter("option");// 获取命令服务和RadioStateICommandService service = PlatformUI.getWorkbench().getService(ICommandService.class);State state = service.getCommand(RADIO_COMMEND_ID).getState(RadioState.STATE_ID);// 获取当前状态值String currentValue = state != null ? (String)state.getValue() : null;// 只在真正选择新选项时显示对话框（避免取消选择时的对话框）// 如果当前值与新选项不同，说明这是一个真正的选择操作if (option != null && !option.equals(currentValue)) {// 显示消息对话框Shell shell = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell();MessageDialog.openInformation(shell, "单选按钮", "您点击了单选按钮 " + option);}// 更新按钮状态if (state != null) {state.setValue(option);}return null;}
}