/** * Creates a new painter for the given text viewer. * * @param textViewer the text viewer the painter should be attached to */ public WhitespaceCharacterPainter(ITextViewer textViewer) { super(); fTextViewer = textViewer; fTextWidget = textViewer.getTextWidget(); GC gc = new GC(fTextWidget); gc.setAdvanced(true); fIsAdvancedGraphicsPresent = gc.getAdvanced(); gc.dispose(); }
void paint(PaintEvent e) { GC gc = e.gc; Point size = comp.getSize(); if (curveColor == null) curveColor = e.display.getSystemColor(SWT.COLOR_BLACK); int h = size.y; int[] simpleCurve = new int[] {0, h - 1, 1, h - 1, 2, h - 2, 2, 1, 3, 0}; // draw border gc.setForeground(curveColor); gc.setAdvanced(true); if (gc.getAdvanced()) { gc.setAntialias(SWT.ON); } gc.drawPolyline(simpleCurve); Rectangle bounds = ((Control) e.widget).getBounds(); bounds.x = bounds.y = 0; Region r = new Region(); r.add(bounds); int[] simpleCurveClose = new int[simpleCurve.length + 4]; System.arraycopy(simpleCurve, 0, simpleCurveClose, 0, simpleCurve.length); int index = simpleCurve.length; simpleCurveClose[index++] = bounds.width; simpleCurveClose[index++] = 0; simpleCurveClose[index++] = bounds.width; simpleCurveClose[index++] = bounds.height; r.subtract(simpleCurveClose); Region clipping = new Region(); gc.getClipping(clipping); r.intersect(clipping); gc.setClipping(r); Image b = toolParent.getBackgroundImage(); if (b != null && !b.isDisposed()) gc.drawImage(b, 0, 0); r.dispose(); clipping.dispose(); // // gc.fillRectangle(bounds); // Rectangle mappedBounds = e.display.map(comp, comp.getParent(), // bounds); // ((Composite) toolParent).drawBackground(gc, bounds.x, bounds.y, // bounds.width, // bounds.height, mappedBounds.x, mappedBounds.y); }