JPanel绘图BufferedImage

Question

我在绘制BufferedImage时遇到了问题，很难描述，所以你可以在视频中看到它：https://www.youtube.com/watch?v=9K-QTKHcOYA

这是我的密码：

JPanel中的

@Override
public void mouseMoved(MouseEvent e) {
    if(Tool.selectedTool != null)
        Tool.selectedTool.onPaintingAreaMouseMoved(e.getX(),e.getY(),z);
}

@Override
public void onPaintingAreaMouseMoved(int x, int y, int z) {
    if(clicks == 1){
        curve.controlPoints[1] = new Point(x, y, z);
        PaintingArea.paintingArea.refresh();
    }
}

由于一个错误，我决定不在这里张贴我的曲线类的代码，但我检查了它，没有错误。

JPanel 类中的

public void refresh(){
    axis = new int[width * height];
    for (int i = 0; i < axis.length; i++)
        axis[i] = background;
    for(int i = 0; i < Line.lines.size(); i++) {
        Point[] points = Line.lines.get(i).getPoints();
        for(int m = 0; m < points.length; m++)
            axis[points[m].x + width*points[m].y] = 0;
    }
    repaint();
}

@Override
protected void paintComponent(Graphics g) {
    super.paintComponent(g);
    setSize(width,height);
    BufferedImage image = new BufferedImage( width, height, BufferedImage.TYPE_INT_RGB);
    image.setRGB(0,0, width, height, axis,0, 1);
    g.drawImage(image,0,0,image.getWidth(),image.getHeight(),null);
}

有人能告诉我我做错了什么吗？

Answer 1

    JPanel panel = new JPanel();
    panel.setLayout(new BorderLayout());
    panel.add(menubar, BorderLayout.NORTH);
    panel.add(toolbar, BorderLayout.WEST);
    panel.add(new PaintingArea(), BorderLayout.CENTER);

    add(panel);
    pack();
    setSize(800,700);
    setVisible(true);