PieUtils.java 文件源码

public static void drawPie(GC gc,int x, int y,int width,int height,int percent) {
    Color background = gc.getBackground();
    gc.setForeground(Colors.blue);
    int angle = (percent * 360) / 100;
    if(angle<4)
        angle = 0; // workaround fillArc rendering bug
    gc.setBackground(Colors.white);
    gc.fillArc(x,y,width,height,0,360);
    gc.setBackground(background);
    gc.fillArc(x,y,width,height,90,angle*-1);
    gc.drawOval(x , y , width-1, height-1);
}