长话短说，我JPanel中有两个JFrame个对象，其中一个是调整面板，另一个是图形面板。当我调整窗口大小时，图形面板不会相应地调整大小。
我有两个类，其中一个是GUImodel类，另一个是ModelSim（模型模拟）类，其中GUImodel类可视化{{1}中的模拟部分}}
其中i，我的图形ModelSim中绘制方法的j个索引覆盖（770,460）像素。根据我在上面代码中的定义，JPanel为770x460像素的每个像素着色。如何通过展开窗口来调整图形fillRect的大小。从逻辑上讲，通过调整图形面板的大小，彩色像素不再具有方形形状，这在我的情况下很好。
请帮帮我怎么办？ 请告诉我，如果您需要任何其他信息
这是可运行的代码;第一类是GUICA，另一类是ModelSim。
GUICA：
JPanelModelSim代码：
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ComponentEvent;
import java.awt.event.ComponentListener;
import javax.swing.*;
/**
* Cellular Automata Graphical User Interface
* @author Mahdi
* @version 1.0
*/
// This code provide a simple GUI for Cellular Automata
// Notice that we are going to extend our super class JFrame which is the main window of our simulation
// Inside this JFrame, we are going to add two subframes, which are called JPanels.
public class GUICA extends JFrame {
// We need to make to Jpanels inside the main Jframe
// First Jpanel is adjustPanel
private JPanel adjustPanel;
// Second Jpanel is graphicPanel
private JPanel graphicPanel;
// Now it is the time to create buttons
private JButton startButton;
private JButton resetButton;
private JButton stopButton;
// We need to make an object from our model to implement that one in GUI part
private ModelSim model;
// We need also timer to re-implement (update) our simulation
private Timer timer;
// Detrmining the initial values of Windows panel main size
static int widthPixel = 766;
static int heightPixel = 468;
Rectangle bounds;
// Now, that's the time to create our constructor
public GUICA(){
// Here super is our JFrame and the string defines the name of our Frame.
super("Cellular Automata Evacuation");
// The below code will close the window(JFrame), once we have click on window exit
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//lets define the default size of our window page(main JFrame), where the first value is the x and second one is y;
setSize(widthPixel,heightPixel);
// First let's define the role of our timer in our future simulation. We first have to initialize our object in
// the constructor, then with an actionlistener, we will define the role of timerlistener with a nested class.
timer = new Timer(1,new TimerListener());
// We need to initialize our buttons right now.
// The important factor here is the actionlistener, we need to addactionlistener to each button to define their duties.
// Their duties can be defined by a nested class (which is defined inside our main class)
startButton = new JButton("Start");
startButton.addActionListener(new StartListener());
resetButton = new JButton("Reset");
resetButton.addActionListener(new ResetListener());
stopButton = new JButton("Stop");
stopButton.addActionListener(new StopListener());
// There are many options to put the buttons in different part of the JPanel, I am going to use not the easiest one
// but the handiest one. We want to accommodate our buttons inside adjustPanel
adjustPanel = new JPanel(new GridBagLayout());
// The below code is for determining the position of our buttons
GridBagConstraints grid = new GridBagConstraints();
grid.insets = new Insets(10,10,10,10);
// For start button
grid.gridx = 0;
grid.gridy = 1;
adjustPanel.add(startButton, grid);
// For stop button
grid.gridx = 0;
grid.gridy = 2;
adjustPanel.add(resetButton,grid);
//Let's Separate the buttons from each other with the below tricky method
grid.insets = new Insets(20,20,20,20);
JLabel white = new JLabel();
grid.gridx = 0;
grid.gridy = 3;
adjustPanel.add(white,grid);
// For stop button
grid.gridx = 0;
grid.gridy = 4;
adjustPanel.add(stopButton,grid);
// We can determine that how much of the space is going to be belonged to adjustPanel
adjustPanel.setPreferredSize(new Dimension(100,heightPixel));
// We need to add this panel to our main JFrame panel; also we can determine where we want to place this panel
// I won't use grid method to place this panel. However,instead, I use the simplest way to determine the position of panels
setLayout(new BorderLayout());
add(adjustPanel,BorderLayout.WEST);
// What about the other panel (graphicPanel) we need to initialize again, but we do not need to determine the exact position
// of this panle, because it will cover the whole remainder JFrame as its own property
graphicPanel = new JPanel();
graphicPanel = new GraphicPanel();
graphicPanel.setPreferredSize(new Dimension(widthPixel-100,heightPixel));
//graphicPanel.setBackground(Color.white);
add(graphicPanel,BorderLayout.CENTER);
bounds = new Rectangle(widthPixel-100,heightPixel);
model = new ModelSim(bounds);
}
// Start button action listener
private class StartListener implements ActionListener{
public void actionPerformed(ActionEvent e) {
timer.start();
}
}
// Reset button action listener
private class ResetListener implements ActionListener{
public void actionPerformed(ActionEvent e) {
model = new ModelSim(bounds);
}
}
// Stop button action listener
private class StopListener implements ActionListener{
public void actionPerformed(ActionEvent e) {
timer.stop();
}
}
// Stop button action listener
private class TimerListener implements ActionListener{
public void actionPerformed(ActionEvent e) {
model.update();
}
}
private class GraphicPanel extends JPanel{
public GraphicPanel(){
setPreferredSize(new Dimension(widthPixel-100,heightPixel));
//super.revalidate();
//super.repaint();
//System.out.println(widthPixel);
}
public void paintComponent(Graphics g){
super.paintComponent(g);
g.setColor(Color.WHITE);
g.fillRect(0, 0, widthPixel-100,heightPixel);
model.draw(g);
}
}
// To make the code runnable, we need provide static main class
public static void main(String[] args){
JFrame gui = new GUICA();
gui.pack();
gui.setVisible(true);
}
}
答案 0 :(得分：1)
修改
我认为您的面板正在调整大小，但由于您具有硬编码的背景颜色，因此您无法看到它。为避免这种情况，我建议您使用类似
的内容g.fillRect(0, 0, this.getWidth(), this.getHeight());
此外，将Graphics对象g转换为Graphics2D类。然后你可以在其中使用scale方法。对于x轴和y轴，缩放因子是双精度和分离的。
在您的情况下，缩放因子应为
double scaleX = this.getWidth() / 770.0;
double scaleY = this.getHeight() / 460.0;
// Now simply call scale
((Graphics2D) g).scale(scaleX, scaleY);
在绘制任何内容之前先放置它。
希望这有帮助。
您需要使用适当的布局管理器将面板放在JFrame中。
如果你只有两个面板，我建议使用BorderLayout。它使用起来非常简单，可能会达到您的目的。
这样，当您调整窗口大小时，面板会调整大小。
祝你好运。