SWTGraphics.java 文件源码

/**
 * @see Graphics#setBackgroundPattern(Pattern)
 */
public void setBackgroundPattern(Pattern pattern) {
    currentState.graphicHints |= ADVANCED_GRAPHICS_MASK;
    if (currentState.bgPattern == pattern) {
        return;
    }
    currentState.bgPattern = pattern;

    if (pattern != null) {
        initTransform(true);
    }
    gc.setBackgroundPattern(pattern);
}