如何在资源上删除以前添加的装饰器？ [英] How to remove a previously added decorator on a resource?

问题描述

这里有人知道如何删除资源上的特定装饰器？我将 org.eclipse.ui.decorators 扩展到我的项目，并创建了一个实现 ILightweightLabelDecorator 的类。在装饰器类中，我测试了条目是否是项目，并在调用 decorator.addOverlay（）之前进行其他测试。我没有实现其他功能，例如 removeListener ， isLabelProperty ， dispose ， addListener ，因为我目前看不到使用。
任何想法，资源，关于如何进行的评论将大有帮助。

Does anyone here knows how to remove a particular decorator on a resource? I extended org.eclipse.ui.decorators to my project and created a class that implements ILightweightLabelDecorator. In the decorator class I tested if the entry was a project and other test before calling decorator.addOverlay(). I did not implemented the other functions such as removeListener, isLabelProperty, dispose, addListener since I currently do not see the use. Any idea, resources, comment on how to proceed would greatly help.

代码：装饰功能

    QualifiedName decorator = new QualifiedName("decorator", "value");

    if (element instanceof IProject) {
        IProject res = (IProject) element;

        if (!res.isOpen()) {
            return;
        }

        String val = null;
        try {
            val = res.getPersistentProperty(decorator);

        } catch (CoreException e) {
            e.printStackTrace();
        }

        if (val != null && val.equals(DecoratorState.ACTIVE)) {

            decoration.addOverlay(ImageDescriptor.createFromFile(MyDecorator.class, 
                    "/icons/sample.gif"), IDecoration.BOTTOM_RIGHT);
            decoration.addSuffix(" [Using Enhancement]");

        }
    }

推荐答案

对于有同样问题的人，可以使用 LabelProviderChangedEvent

For anyone who is having that same issue, it can be fixed with LabelProviderChangedEvent

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