Eclipse RCP关闭按钮的屏蔽方法

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  • Post category:其他


通过设断点跟踪Eclipse RCP的代码, 发现编辑器上的关闭按钮其实并不属于Editor控件的一部分,而是editor所属容器的,具体层次结构没有深入去研究,总之按钮是加在AbstractTabFolder这样一个控件上的。RCP在启动时,会通过默认的WorkbenchPresentationFactory在生成GUI上的DefaultTabFolder,并且默认具有关闭按钮。因此屏蔽关闭按钮就从此入手。

首先,在ApplicationWorkbenchWindowAdvisor类的preWindowOpen()方法中注册我们自己定制的PresentationFactory.



Java


代码:

configurer.setPresentationFactory(new UnCloseableEditorPresentationFactory());

UnCloseableEditorPresentationFactory类继承WorkbenchPresentationFactory类,为了不影响别的GUI功能,我们只需要重写public StackPresentation createEditorPresentation(Composite parent, IStackPresentationSite site)方法中的关于设置TableFolder的部分,具体如下:



Java


代码:

DefaultTabFolder folder = new UnCloseableEditorFolder(parent, editorTabPosition | SWT.BORDER,

site.supportsState(IStackPresentationSite.STATE_MINIMIZED),

site.supportsState(IStackPresentationSite.STATE_MAXIMIZED));

该方法中其余部分代码,把父类的复制过来即可。

最后就是定义我们自己的UnCloseableEditorFolder了

Java代码:

public UnCloseableEditorFolder(Composite parent, int flags,boolean allowMin, boolean allowMax){

super(parent, flags, allowMin, allowMax);

}

@SuppressWarnings(“restriction”) public AbstractTabItem add(int index, int flags) {

return super.add(index, flags ^ SWT.CLOSE);

}

以上就是需要定制的代码,另外,UnCloseableEditorPresentationFactory类中,我们还可以public StackPresentation createEditorPresentation(Composite parent, IStackPresentationSite site)中定制StandardViewSystemMenu,从而去掉RCP中编辑器folder上的菜单中的close,closeall,new editor等菜单

Java代码:

class StandardEditorSystemMenu extends StandardViewSystemMenu {

/**

* @param site

*/

public StandardEditorSystemMenu(IStackPresentationSite site) {

super(site);

}

String getMoveMenuText() {

return WorkbenchMessages.EditorPane_moveEditor;

}

/* (non-Javadoc)

* @see org.eclipse.ui.internal.presentations.util.ISystemMenu#show(org.eclipse.swt.widgets.Control, org.eclipse.swt.graphics.Point, org.eclipse.ui.presentations.IPresentablePart) */

public void show(Control parent, Point displayCoordinates, IPresentablePart currentSelection) {

super.show(parent, displayCoordinates, currentSelection);

} }

以上就是个人从事RCP几年来一点小小的心得体会。