在JPanel中处理生成的形状

JPanel panel = new JPanel();

@Override
protected void paintComponent(Graphics g) {
    super.paintComponent(g);
    // 在这里绘制形状的逻辑
}

@Override
protected void paintComponent(Graphics g) {
    super.paintComponent(g);
    
    // 绘制矩形
    g.drawRect(x, y, width, height);
    
    // 绘制圆形
    g.drawOval(x, y, width, height);
    
    // 绘制其他形状...
}

// 鼠标点击事件
panel.addMouseListener(new MouseAdapter() {
    @Override
    public void mouseClicked(MouseEvent e) {
        // 在点击位置生成形状的逻辑
    }
});

List<Shape> shapes = new ArrayList<>();

// 鼠标点击事件
panel.addMouseListener(new MouseAdapter() {
    @Override
    public void mouseClicked(MouseEvent e) {
        int x = e.getX();
        int y = e.getY();
        int width = 50;
        int height = 50;
        
        Shape shape = new Shape(x, y, width, height);
        shapes.add(shape);
        
        // 其他处理逻辑...
    }
});

// 遍历所有形状
for (Shape shape : shapes) {
    // 处理形状的逻辑，例如移动、删除、变换等
}