/**
* 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);
}