Eclipse的OverviewRuler没有显示注释

Question

我创建了一个SourceViewer的在这个环节https://wiki.eclipse.org/Platform_Text

我不能让编辑器的右侧标注适应症描述。

我试图在视图中而不是编辑器。

我试过打电话overViewRuler.addAnnotationType("My annotation type");，也叫overViewRuler.update();似乎没什么可行的。有什么方法在视图中的源查看器的右侧概览标尺上显示标记？

Answer 1

我找到了答案。

问题是

overviewRulerPreferenceValue = “真”

在plugin.xml中失踪。如果有人想尝试，我会给出完整的代码。

 package sourceviewsample; 

    import org.eclipse.core.runtime.IProgressMonitor; 
    import org.eclipse.jface.text.BadLocationException; 
    import org.eclipse.jface.text.Document; 
    import org.eclipse.jface.text.IDocument; 
    import org.eclipse.jface.text.Position; 
    import org.eclipse.jface.text.source.Annotation; 
    import org.eclipse.jface.text.source.AnnotationModel; 
    import org.eclipse.jface.text.source.CompositeRuler; 
    import org.eclipse.jface.text.source.IAnnotationAccess; 
    import org.eclipse.jface.text.source.IOverviewRuler; 
    import org.eclipse.jface.text.source.ISharedTextColors; 
    import org.eclipse.jface.text.source.LineNumberRulerColumn; 
    import org.eclipse.jface.text.source.OverviewRuler; 
    import org.eclipse.jface.text.source.SourceViewer; 
    import org.eclipse.jface.text.source.SourceViewerConfiguration; 
    import org.eclipse.swt.SWT; 
    import org.eclipse.swt.graphics.RGB; 
    import org.eclipse.swt.layout.GridData; 
    import org.eclipse.swt.widgets.Composite; 
    import org.eclipse.swt.widgets.Display; 
    import org.eclipse.ui.internal.editors.text.EditorsPlugin; 
    import org.eclipse.ui.part.ViewPart; 
    import org.eclipse.ui.texteditor.AnnotationPreference; 
    import org.eclipse.ui.texteditor.SourceViewerDecorationSupport; 

    /** 
    * An example of using a SourceViewer with Annotation support outside of the 
    * TextEditor class. This annotations can be configured in the preferences if 
    * the markerAnnotationSpecification is setup in the plugin.xml. 
    * 
    * To execute this, run as an Eclipse Application and then open a file using 
    * Open with.. -> Other, and select Sample Editor. You will see the text that 
    * comes in this example and the highlight. 
    */ 
    public class SampleEditor extends ViewPart 
    { 
     public static final String    ANNO_TYPE   = "com.mycompany.element"; 
     public static final String    ANNO_KEY_HIGHLIGHT = "annotateElemHighlight"; 
     public static final String    ANNO_KEY_OVERVIEW = "annotateElemOverviewRuler"; 
     public static final String    ANNO_KEY_VERTICAL = "annotateElemVertialRuler"; 
     public static final String    ANNO_KEY_TEXT  = "annotateElemText"; 
     public static final String    ANNO_KEY_COLOR  = "annotateElemColor"; 

     protected SourceViewer     _sourceViewer; 
     protected SourceViewerDecorationSupport _sds; 
     protected IDocument      _document; 
     protected AnnotationModel    _annotationModel; 

     protected String      _docString   = "this\nis\na\ntest\ndocument"; 

     public SampleEditor() 
     { 
      super(); 
     } 

     public void createPartControl(Composite parent) 
     { 
      int VERTICAL_RULER_WIDTH = 12; 

      int styles = SWT.V_SCROLL 
       | SWT.H_SCROLL 
       | SWT.MULTI 
       | SWT.BORDER 
       | SWT.FULL_SELECTION; 
      ISharedTextColors sharedColors = EditorsPlugin.getDefault() 
        .getSharedTextColors(); 


      IAnnotationAccess iaccess = new IAnnotationAccess() { 

       @Override 
       public boolean isTemporary(Annotation annotation) { 
        // TODO Auto-generated method stub 
        return true; 
       } 

       @Override 
       public boolean isMultiLine(Annotation annotation) { 
        // TODO Auto-generated method stub 
        return false; 
       } 

       @Override 
       public Object getType(Annotation annotation) { 
        // TODO Auto-generated method stub 
        return ANNO_TYPE; 
       } 
      }; 


      IOverviewRuler overviewRuler = new OverviewRuler(iaccess, 
                  VERTICAL_RULER_WIDTH, 
                  sharedColors); 
      CompositeRuler ruler = new CompositeRuler(VERTICAL_RULER_WIDTH); 

      _document = new Document(); 
      _document.set(_docString); 

      _annotationModel = new AnnotationModel(); 
      _annotationModel.connect(_document); 

      _sourceViewer = new SourceViewer(parent, 
              ruler, 
              overviewRuler, 
              true, 
              styles); 
      _sourceViewer.configure(new SourceViewerConfiguration()); 

      _sds = new SourceViewerDecorationSupport(_sourceViewer, 
                overviewRuler, 
                null, 
                sharedColors); 

      AnnotationPreference ap = new AnnotationPreference(); 
      ap.setColorPreferenceKey(ANNO_KEY_COLOR); 
      ap.setColorPreferenceValue(new RGB(150, 200, 250)); 
      ap.setHighlightPreferenceKey(ANNO_KEY_HIGHLIGHT); 
      ap.setVerticalRulerPreferenceKey(ANNO_KEY_VERTICAL); 
      ap.setOverviewRulerPreferenceKey(ANNO_KEY_OVERVIEW); 
      ap.setOverviewRulerPreferenceValue(true); 
      ap.setTextPreferenceKey(ANNO_KEY_TEXT); 
      ap.setAnnotationType(ANNO_TYPE); 
      _sds.setAnnotationPreference(ap); 

      _sds.install(EditorsPlugin.getDefault().getPreferenceStore()); 

      _sourceViewer.setDocument(_document, _annotationModel); 

      _sourceViewer.getControl().setLayoutData(new GridData(SWT.FILL, 
                    SWT.FILL, 
                    true, 
                    true)); 

      ruler.addDecorator(0, new LineNumberRulerColumn()); 

      overviewRuler.addAnnotationType(ANNO_TYPE); 

      overviewRuler.getControl().setBackground(Display.getDefault().getSystemColor(SWT.COLOR_BLACK)); 

      Annotation annotation = new Annotation(false); 
      annotation.setType(ANNO_TYPE); 
      Position position = new Position(0, 4); 
      _annotationModel.addAnnotation(annotation, position); 
      try { 
       _document.addPosition(position); 
      } catch (BadLocationException e) { 
       e.printStackTrace(); 
      } 

      overviewRuler.setModel(_annotationModel); 
     } 

     public void dispose() 
     { 
      // The _sourceViewer goes away automatically when the editor goes 
      // away because it's hooked to the controls 
      _sds.dispose(); 
     } 

     // 
     // This stuff below is just needed to make the EditorPart happy 
     // 

     public void doSave(IProgressMonitor monitor) 
     { 
     } 

     public void doSaveAs() 
     { 
     } 

    // public void init(IEditorSite site, IEditorInput input) 
    //  throws PartInitException 
    // { 
    //  setSite(site); 
    //  setInput(input); 
    // } 
    // 
    // public boolean isDirty() 
    // { 
    //  return false; 
    // } 

     public boolean isSaveAsAllowed() 
     { 
      return false; 
     } 

     public void setFocus() 
     { 

     } 

    } 

这里是plugin.xml中以及

<?xml version="1.0" encoding="UTF-8"?> 
<?eclipse version="3.2"?> 
<plugin> 

    <extension 
     point="org.eclipse.ui.editors.annotationTypes"> 
     <type 
      markerSeverity="0" 
      name="com.mycompany.element"> 
     </type> 
    </extension> 
    <extension 
     point="org.eclipse.ui.editors.markerAnnotationSpecification"> 
     <specification 
      annotationType="com.mycompany.element" 
      colorPreferenceKey="annotateElemColor" 
      colorPreferenceValue="255,255,0" 
      highlightPreferenceKey="annotateElemHighlight" 
      highlightPreferenceValue="true" 
      includeOnPreferencePage="true" 
      label="Sample Annotation" 
      overviewRulerPreferenceKey="annotateElemOverviewRuler" 
      overviewRulerPreferenceValue="true" 
      textPreferenceKey="annotateElemText" 
      verticalRulerPreferenceKey="annotateElemVerticalRuler" 
      verticalRulerPreferenceValue="true"> 
     </specification> 
    </extension> 
    <extension 
     point="org.eclipse.ui.views"> 
     <view id="sourceviewsample.SampleEditor" 
     name="Source Viewer" 
     class="sourceviewsample.SampleEditor"/> 
    </extension> 
</plugin>