How to use

modelLine2WidgetLine

method

in

org.eclipse.jface.text.TextViewer

@Override
public void setTopIndex(int index) {
  if (fTextWidget != null) {
    int widgetLine= modelLine2WidgetLine(index);
    if (widgetLine == -1)
      widgetLine= getClosestWidgetLineForModelLine(index);
    if (widgetLine > -1) {
      fTextWidget.setTopIndex(widgetLine);
        updateViewportListeners(INTERNAL);
    }
  }
}

@Override
public void setTopIndex(int index) {
  if (fTextWidget != null) {
    int widgetLine= modelLine2WidgetLine(index);
    if (widgetLine == -1)
      widgetLine= getClosestWidgetLineForModelLine(index);
    if (widgetLine > -1) {
      fTextWidget.setTopIndex(widgetLine);
        updateViewportListeners(INTERNAL);
    }
  }
}

protected void setLastRulerMouseLocation(ISourceViewer viewer, int line) {
  // set last mouse activity in order to get the correct context menu
  if (fCompositeRuler != null) {
    StyledText st= viewer.getTextWidget();
    if (st != null && !st.isDisposed()) {
      if (viewer instanceof ITextViewerExtension5) {
        int widgetLine= ((ITextViewerExtension5)viewer).modelLine2WidgetLine(line);
        Point loc= st.getLocationAtOffset(st.getOffsetAtLine(widgetLine));
        fCompositeRuler.setLocationOfLastMouseButtonActivity(0, loc.y);
      } else if (viewer instanceof TextViewer) {
        // TODO remove once TextViewer implements the extension
        int widgetLine= ((TextViewer)viewer).modelLine2WidgetLine(line);
        Point loc= st.getLocationAtOffset(st.getOffsetAtLine(widgetLine));
        fCompositeRuler.setLocationOfLastMouseButtonActivity(0, loc.y);
      }
    }
  }
}

protected void setLastRulerMouseLocation(ISourceViewer viewer, int line) {
  // set last mouse activity in order to get the correct context menu
  if (fCompositeRuler != null) {
    StyledText st= viewer.getTextWidget();
    if (st != null && !st.isDisposed()) {
      if (viewer instanceof ITextViewerExtension5) {
        int widgetLine= ((ITextViewerExtension5)viewer).modelLine2WidgetLine(line);
        Point loc= st.getLocationAtOffset(st.getOffsetAtLine(widgetLine));
        fCompositeRuler.setLocationOfLastMouseButtonActivity(0, loc.y);
      } else if (viewer instanceof TextViewer) {
        // TODO remove once TextViewer implements the extension
        int widgetLine= ((TextViewer)viewer).modelLine2WidgetLine(line);
        Point loc= st.getLocationAtOffset(st.getOffsetAtLine(widgetLine));
        fCompositeRuler.setLocationOfLastMouseButtonActivity(0, loc.y);
      }
    }
  }
}

protected void setLastRulerMouseLocation(ISourceViewer viewer, int line) {
  // set last mouse activity in order to get the correct context menu
  if (fCompositeRuler != null) {
    StyledText st= viewer.getTextWidget();
    if (st != null && !st.isDisposed()) {
      if (viewer instanceof ITextViewerExtension5) {
        int widgetLine= ((ITextViewerExtension5)viewer).modelLine2WidgetLine(line);
        Point loc= st.getLocationAtOffset(st.getOffsetAtLine(widgetLine));
        fCompositeRuler.setLocationOfLastMouseButtonActivity(0, loc.y);
      } else if (viewer instanceof TextViewer) {
        // TODO remove once TextViewer implements the extension
        int widgetLine= ((TextViewer)viewer).modelLine2WidgetLine(line);
        Point loc= st.getLocationAtOffset(st.getOffsetAtLine(widgetLine));
        fCompositeRuler.setLocationOfLastMouseButtonActivity(0, loc.y);
      }
    }
  }
}

int stableWidgetLine= modelLine2WidgetLine(stableLine);
fStablePixel= getTextWidget().getLinePixel(stableWidgetLine);
IRegion stableLineInfo= fUpdaterDocument.getLineInformation(stableLine);

int stableWidgetLine= modelLine2WidgetLine(stableLine);
fStablePixel= getTextWidget().getLinePixel(stableWidgetLine);
IRegion stableLineInfo= fUpdaterDocument.getLineInformation(stableLine);