/** * Fills the interior of the rectangle specified by the arguments, with the receiver's background. * * @param gc the gc where the rectangle is to be filled * @param x the x coordinate of the rectangle to be filled * @param y the y coordinate of the rectangle to be filled * @param width the width of the rectangle to be filled * @param height the height of the rectangle to be filled * @exception IllegalArgumentException * <ul> * <li>ERROR_NULL_ARGUMENT - if the gc is null * <li>ERROR_INVALID_ARGUMENT - if the gc has been disposed * </ul> * * @exception SWTException * <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver * </ul> * * @since 3.2 */ public void drawBackground(GC gc, int x, int y, int width, int height) { x = DPIUtil.autoScaleUp(x); y = DPIUtil.autoScaleUp(y); width = DPIUtil.autoScaleUp(width); height = DPIUtil.autoScaleUp(height); drawBackgroundInPixels(gc, x, y, width, height, 0, 0); }
/** * Scrolls a rectangular area of the receiver by first copying the source area to the destination * and then causing the area of the source which is not covered by the destination to be * repainted. Children that intersect the rectangle are optionally moved during the operation. In * addition, all outstanding paint events are flushed before the source area is copied to ensure * that the contents of the canvas are drawn correctly. * * @param destX the x coordinate of the destination * @param destY the y coordinate of the destination * @param x the x coordinate of the source * @param y the y coordinate of the source * @param width the width of the area * @param height the height of the area * @param all <code>true</code>if children should be scrolled, and <code>false</code> otherwise * @exception SWTException * <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver * </ul> */ public void scroll(int destX, int destY, int x, int y, int width, int height, boolean all) { checkWidget(); destX = DPIUtil.autoScaleUp(destX); destY = DPIUtil.autoScaleUp(destY); x = DPIUtil.autoScaleUp(x); y = DPIUtil.autoScaleUp(y); width = DPIUtil.autoScaleUp(width); height = DPIUtil.autoScaleUp(height); scrollInPixels(destX, destY, x, y, width, height, all); }