هنا كنت أحاول أن أثظهر line على Panel
و لكنه لا يظهر
حاولت فيه كثيراً ولكن دون جدوى
هذا الكود الذى عملته :
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import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainPainter {
private static final Dimension App_Dimension = new Dimension(600, 300);
private JPanel mainPanel, mainComponentPanel, componentPanel, drawPanel;
private String[] buttonNames = {"line", "rect", "oval", "polygon", "eraser"};
private JButton[] buttons;
private String[] imageNames = {"line.png", "rect.png", "oval.png", "connected.png", "erase.png"};
private ImageIcon[] imageIcons;
public MainPainter() {
intializePanels();
intializeButtons();
intializationIcons();
ShapetTest shapetTest = new ShapetTest();
}
public static void main(String[] args) {
JFrame frame = new JFrame();
frame.getContentPane().add(new MainPainter().getComponent());
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(App_Dimension);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
frame.setExtendedState(JFrame.MAXIMIZED_BOTH);
}
private void intializePanels() {
mainPanel = new JPanel(new BorderLayout());
mainComponentPanel = new JPanel();
mainComponentPanel.setBackground(Color.BLUE);
mainComponentPanel.setPreferredSize(new Dimension(200, 100));
componentPanel = new JPanel(new GridLayout(3, 2, 5, 5));
componentPanel.setBackground(Color.GREEN);
//drawPanel = new JPanel();
}
private void intializationIcons() {
imageIcons = new ImageIcon[imageNames.length];
for (int i = 0; i < imageNames.length; ++i) {
imageIcons = new ImageIcon(getClass().getResource(imageNames));
}
}
private void intializeButtons() {
intializationIcons();
MyActionListener myActionListener = new MyActionListener();
buttons = new JButton[buttonNames.length];
for (int i = 0; i < buttonNames.length; ++i) {
buttons = new JButton(buttonNames);
buttons.setToolTipText(buttonNames);
buttons.addActionListener(myActionListener);
componentPanel.add(buttons);
mainComponentPanel.add(componentPanel);
}
mainPanel.add(mainComponentPanel, BorderLayout.WEST);
}
public JComponent getComponent() {
return mainPanel;
}
class ShapetTest {
private int xStart, yStart, xEnd, yEnd;
public ShapetTest() {
MyMouse mouse = new MyMouse();
drawLine();
drawPanel.addMouseListener(mouse);
drawPanel.addMouseMotionListener(mouse);
}
public void drawLine() {
// new MainPainter().intializePanels();
drawPanel = new JPanel() {
@Override
public void paintComponent(Graphics g) {
super.paintComponent(g);
g.setColor(Color.BLACK);
g.drawLine(xStart, yStart, xEnd, yEnd);
}
};
drawPanel.setBackground(Color.WHITE);
mainPanel.add(drawPanel, BorderLayout.CENTER);
}
class MyMouse extends MouseAdapter {
@Override
public void mousePressed(MouseEvent e) {
xStart = e.getX();
yStart = e.getY();
}
@Override
public void mouseReleased(MouseEvent e) {
xEnd = e.getX();
yEnd = e.getY();
new ShapetTest().drawLine();
}
}
}
class MyActionListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
if (e.getSource() == buttons[0]) {
new ShapetTest().drawLine();
}
}
}
}و أيضاً الكود مرفق هنا :
