Java JPanel.getGraphics示例

示例#1

文件： SwimmingPool.java 项目： Chartle/javabook

 public void drawPool(int deepEnd, int shallEnd, int length) {
   Graphics paper = panel.getGraphics();
   paper.setColor(Color.WHITE);
   paper.fillRect(0, 0, 200, 175);
   paper.setColor(Color.BLACK);
   paper.drawLine(50, 50, 50 + length * 15, 50);
   paper.drawLine(50, 50 + deepEnd * 15, 50, 50);
   paper.drawLine(50 + length * 15, 50, 50 + length * 15, 50 + shallEnd * 15);
   paper.drawLine(50, 50 + deepEnd * 15, 50 + length * 15, 50 + shallEnd * 15);
 }