Bug 17365 Text Editor: icons in vert. ruler disappear for partial top line
- open Java text editor on file that is larger as view (so that you can scroll) - generate any kind of icon in vertical ruler (e.g. a breakpoint) - use the thumb to carefully scroll pixel wise so that a top line is half visible - now scroll with the scrollbar buttons (not the thumb!) until a line with an icon is at the top (half visible) Observe: as soon as a line is only partially visible its icon is no longer drawn.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/ProblemPainter.java
private boolean fIsActive= false;
	private boolean fIsPainting= false;
	private boolean fIsSettingModel= false;
	
	private Color fColor;
	private ITextEditor fTextEditor;
	private ISourceViewer fSourceViewer;
	private StyledText fTextWidget;
	private IAnnotationModel fModel;
	private List fProblemPositions= new ArrayList();