图形工件出现在 JPanel 中
Graphics artifacts appear here in JPanel
在我的自定义 JPanel 中出现图形伪影。我不知道为什么，因为我在我所有的定制画中都使用了 super.paintComponent() 。
- 这是创建时的样子。
2. 这是我点击升级按钮时的样子。
这是代码。
菜单
import java.awt.Color;
import java.awt.EventQueue;
import java.awt.FontFormatException;
import java.awt.Graphics;
import javax.imageio.ImageIO;
import javax.swing.JFrame;
import java.awt.GridBagLayout;
import javax.swing.JPanel;
import java.awt.GridBagConstraints;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.SwingConstants;
import java.awt.BorderLayout;
import java.awt.Font;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
public class Menu {
static JFrame frame;
public static double scale = 1.5;
private static int WIDTH = 300, HEIGHT = 400;
public static Font fontTerminal;
private JPanel menuPanel;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
Menu window = new Menu();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the application.
* @throws IOException
*/
public Menu() throws IOException {
initialize();
}
/**
* Initialize the contents of the frame.
* @throws IOException
*/
private void initialize() throws IOException {
fontTerminal = new Font("Consolas", 1, 1);
try {
fontTerminal = Font.createFont(Font.TRUETYPE_FONT, new File("res/terminal.ttf"));
} catch (FontFormatException e1) {
e1.printStackTrace();
}
frame = new JFrame();
frame.setResizable(false);
frame.setBounds(100, 100, WIDTH, HEIGHT);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
GridBagLayout gridBagLayout = new GridBagLayout();
gridBagLayout.columnWidths = new int[]{0, 0};
gridBagLayout.rowHeights = new int[]{0, 0};
gridBagLayout.columnWeights = new double[]{1.0, Double.MIN_VALUE};
gridBagLayout.rowWeights = new double[]{1.0, Double.MIN_VALUE};
frame.getContentPane().setLayout(gridBagLayout);
menuPanel = new BackgroundPanel();
menuPanel.setLayout(null);
GridBagConstraints gbc_menuPanel = new GridBagConstraints();
gbc_menuPanel.fill = GridBagConstraints.BOTH;
gbc_menuPanel.gridx = 0;
gbc_menuPanel.gridy = 0;
frame.getContentPane().add(menuPanel, gbc_menuPanel);
GameButton newgameButton = new GameButton();
int ngButtWidth = 194, ngButtHeight = 71;
newgameButton.setBounds((frame.getWidth()/2) - (ngButtWidth/2), (frame.getHeight()/2) - (ngButtHeight/2), ngButtWidth, ngButtHeight);
newgameButton.setBackground( new Color(0,0,0,0));
menuPanel.add(newgameButton);
newgameButton.setLayout(new BorderLayout(0, 0));
JLabel newgameLbl = new GLabel("New Game", newgameButton, SwingConstants.CENTER);
newgameLbl.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
GameWindow gp = new GameWindow();
frame.setVisible(false);
}
});
newgameLbl.setFont(fontTerminal.deriveFont(19f));
newgameLbl.setForeground(new Color(0,0,0));
newgameButton.add(newgameLbl, BorderLayout.CENTER);
GameButton creditsButton = new GameButton();
creditsButton.setBackground(new Color(0, 0, 0, 0));
creditsButton.setBounds(56, 262, 194, 71);
menuPanel.add(creditsButton);
creditsButton.setLayout(new BorderLayout(0, 0));
JLabel creditsLabel = new GLabel("Credits", creditsButton, SwingConstants.CENTER);
creditsLabel.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
Credits credits = new Credits();
credits.setVisible(true);
}
});
creditsLabel.setForeground(Color.BLACK);
creditsLabel.setFont(null);
creditsLabel.setBackground(new Color(0, 0, 0, 0));
creditsLabel.setFont(fontTerminal.deriveFont(19f));
creditsButton.add(creditsLabel);
}
}
游戏窗口
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.EventQueue;
import java.awt.Font;
import java.awt.FontFormatException;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.event.ActionEvent;
import java.awt.event.KeyEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.UIManager.*;
import javax.swing.table.DefaultTableModel;
import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.JFrame;
import javax.swing.SwingConstants;
import javax.swing.UIManager;
import javax.swing.JPanel;
import java.awt.Insets;
import java.io.File;
import javax.swing.JButton;
import javax.swing.JLabel;
import java.awt.GridLayout;
import javax.swing.GroupLayout;
import javax.swing.GroupLayout.Alignment;
import javax.swing.LayoutStyle.ComponentPlacement;
import javax.swing.JTabbedPane;
import net.miginfocom.swing.MigLayout;
import java.awt.FlowLayout;
import javax.swing.JTable;
public class GameWindow {
private JFrame frame;
private Font fontTerminal;
private JPanel workerPanel1;
private GProgressbar Bar1;
private GameButton upgradeWorker1;
private JLabel upgradeWorker1_1;
private JPanel workerPanel2;
private GProgressbar Bar2;
private GameButton upgradeWorker2;
private JPanel workerPanel3;
private GProgressbar Bar3;
private GameButton upgradeWorker3;
private JPanel workerPanel4;
private GProgressbar Bar4;
private GameButton upgradeWorker4;
private JPanel upgradesPanel;
private JLabel upgradeWorker2_1;
private JLabel upgradeWorker3_1;
private JLabel upgradeWorker4_1;
private JPanel specialPanel;
private JPanel upgradesButton;
private JTable table, table2;
/**
* Create the application.
*/
public GameWindow() {
initialize();
this.frame.setVisible(true);
}
/**
* Initialize the contents of the frame.
*/
private void initialize() {
try {
for (LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (Exception e) {
// If Nimbus is not available, you can set the GUI to another look and feel.
}
fontTerminal = Menu.fontTerminal;
frame = new JFrame();
frame.setResizable(false);
frame.setBounds(100, 100, 306, 430);
//frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
GridBagLayout gridBagLayout = new GridBagLayout();
gridBagLayout.columnWidths = new int[]{0, 0};
gridBagLayout.rowHeights = new int[]{0, 0};
gridBagLayout.columnWeights = new double[]{1.0, Double.MIN_VALUE};
gridBagLayout.rowWeights = new double[]{1.0, Double.MIN_VALUE};
frame.getContentPane().setLayout(gridBagLayout);
frame.addWindowListener( new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
frame.setVisible(false);
frame.dispose();
Menu.frame.setVisible(true);
}});
GamePanel gamePanel = new GamePanel();
gamePanel.setLayout(null);
GridBagConstraints gbc_menuPanel = new GridBagConstraints();
gbc_menuPanel.fill = GridBagConstraints.BOTH;
gbc_menuPanel.gridx = 0;
gbc_menuPanel.gridy = 0;
frame.getContentPane().add(gamePanel, gbc_menuPanel);
upgradesPanel = new JPanel();
upgradesPanel.setBounds(23, 221, 253, 174);
upgradesPanel.setBackground(new Color(0,0,0,0));
gamePanel.add(upgradesPanel);
workerPanel1 = new JPanel();
workerPanel1.setBackground(new Color(0,0,0,0));
GridBagLayout gbl_workerPanel1 = new GridBagLayout();
gbl_workerPanel1.columnWidths = new int[]{119, 118, 0};
gbl_workerPanel1.rowHeights = new int[]{36, 0};
gbl_workerPanel1.columnWeights = new double[]{0.0, 0.0, Double.MIN_VALUE};
gbl_workerPanel1.rowWeights = new double[]{0.0, Double.MIN_VALUE};
workerPanel1.setLayout(gbl_workerPanel1);
Bar1 = new GProgressbar();
Bar1.setStringPainted(true);
GridBagConstraints gbc_Bar1 = new GridBagConstraints();
gbc_Bar1.fill = GridBagConstraints.BOTH;
gbc_Bar1.insets = new Insets(0, 0, 0, 5);
gbc_Bar1.gridx = 0;
gbc_Bar1.gridy = 0;
workerPanel1.add(Bar1, gbc_Bar1);
upgradeWorker1 = new GameButton();
GridBagConstraints gbc_upgradeWorker1 = new GridBagConstraints();
gbc_upgradeWorker1.fill = GridBagConstraints.BOTH;
gbc_upgradeWorker1.gridx = 1;
gbc_upgradeWorker1.gridy = 0;
workerPanel1.add(upgradeWorker1, gbc_upgradeWorker1);
upgradeWorker1_1 = new GLabel("Upgrade", upgradeWorker1, SwingConstants.CENTER);
upgradeWorker1_1.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
//upgrade worker 1
}
});
upgradeWorker1.setLayout(new BorderLayout(0, 0));
upgradeWorker1_1.setForeground(new Color(0,0,0));
upgradeWorker1.add(upgradeWorker1_1);
workerPanel2 = new JPanel();
workerPanel2.setBackground(new Color(0, 0, 0, 0));
GridBagLayout gbl_panel = new GridBagLayout();
gbl_panel.columnWidths = new int[]{119, 118, 0};
gbl_panel.rowHeights = new int[]{36, 0};
gbl_panel.columnWeights = new double[]{0.0, 0.0, Double.MIN_VALUE};
gbl_panel.rowWeights = new double[]{0.0, Double.MIN_VALUE};
workerPanel2.setLayout(gbl_panel);
Bar2 = new GProgressbar();
Bar2.setStringPainted(true);
GridBagConstraints gbc_Bar2 = new GridBagConstraints();
gbc_Bar2.fill = GridBagConstraints.BOTH;
gbc_Bar2.insets = new Insets(0, 0, 0, 5);
gbc_Bar2.gridx = 0;
gbc_Bar2.gridy = 0;
workerPanel2.add(Bar2, gbc_Bar2);
upgradeWorker2 = new GameButton();
GridBagConstraints gbc_upgradeWorker2 = new GridBagConstraints();
gbc_upgradeWorker2.fill = GridBagConstraints.BOTH;
gbc_upgradeWorker2.gridx = 1;
gbc_upgradeWorker2.gridy = 0;
workerPanel2.add(upgradeWorker2, gbc_upgradeWorker2);
upgradeWorker2.setLayout(new BorderLayout(0, 0));
upgradeWorker2_1 = new GLabel("Upgrade", upgradeWorker2, SwingConstants.CENTER);
upgradeWorker2_1.setForeground(Color.BLACK);
upgradeWorker2_1.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
//upgrade worker 2
}
});
upgradeWorker2.setLayout(new BorderLayout(0, 0));
upgradeWorker2_1.setFont(fontTerminal.deriveFont(15f));
upgradeWorker2.add(upgradeWorker2_1);
workerPanel3 = new JPanel();
workerPanel3.setBackground(new Color(0, 0, 0, 0));
GridBagLayout gbl_workerPanel3 = new GridBagLayout();
gbl_workerPanel3.columnWidths = new int[]{119, 118, 0};
gbl_workerPanel3.rowHeights = new int[]{36, 0};
gbl_workerPanel3.columnWeights = new double[]{0.0, 0.0, Double.MIN_VALUE};
gbl_workerPanel3.rowWeights = new double[]{0.0, Double.MIN_VALUE};
workerPanel3.setLayout(gbl_workerPanel3);
Bar3 = new GProgressbar();
Bar3.setStringPainted(true);
GridBagConstraints gbc_Bar3 = new GridBagConstraints();
gbc_Bar3.fill = GridBagConstraints.BOTH;
gbc_Bar3.insets = new Insets(0, 0, 0, 5);
gbc_Bar3.gridx = 0;
gbc_Bar3.gridy = 0;
workerPanel3.add(Bar3, gbc_Bar3);
upgradeWorker3 = new GameButton();
GridBagConstraints gbc_upgradeWorker3 = new GridBagConstraints();
gbc_upgradeWorker3.fill = GridBagConstraints.BOTH;
gbc_upgradeWorker3.gridx = 1;
gbc_upgradeWorker3.gridy = 0;
workerPanel3.add(upgradeWorker3, gbc_upgradeWorker3);
upgradeWorker3.setLayout(new BorderLayout(0, 0));
upgradeWorker3_1 = new GLabel("Upgrade", upgradeWorker3, SwingConstants.CENTER);
upgradeWorker3.add(upgradeWorker3_1);
workerPanel4 = new JPanel();
workerPanel4.setBackground(new Color(0, 0, 0, 0));
GridBagLayout gbl_workerPanel4 = new GridBagLayout();
gbl_workerPanel4.columnWidths = new int[]{119, 118, 0};
gbl_workerPanel4.rowHeights = new int[]{36, 0};
gbl_workerPanel4.columnWeights = new double[]{0.0, 0.0, Double.MIN_VALUE};
gbl_workerPanel4.rowWeights = new double[]{0.0, Double.MIN_VALUE};
workerPanel4.setLayout(gbl_workerPanel4);
Bar4 = new GProgressbar();
Bar4.setStringPainted(true);
GridBagConstraints gbc_Bar4 = new GridBagConstraints();
gbc_Bar4.fill = GridBagConstraints.BOTH;
gbc_Bar4.insets = new Insets(0, 0, 0, 5);
gbc_Bar4.gridx = 0;
gbc_Bar4.gridy = 0;
workerPanel4.add(Bar4, gbc_Bar4);
upgradeWorker4 = new GameButton();
GridBagConstraints gbc_upgradeWorker4 = new GridBagConstraints();
gbc_upgradeWorker4.fill = GridBagConstraints.BOTH;
gbc_upgradeWorker4.gridx = 1;
gbc_upgradeWorker4.gridy = 0;
workerPanel4.add(upgradeWorker4, gbc_upgradeWorker4);
upgradeWorker4.setLayout(new BorderLayout(0, 0));
upgradeWorker4_1 = new GLabel("Upgrade", upgradeWorker4, SwingConstants.CENTER);
upgradeWorker4.add(upgradeWorker4_1);
GroupLayout gl_upgradesPanel = new GroupLayout(upgradesPanel);
gl_upgradesPanel.setHorizontalGroup(
gl_upgradesPanel.createParallelGroup(Alignment.LEADING)
.addGroup(gl_upgradesPanel.createSequentialGroup()
.addContainerGap()
.addGroup(gl_upgradesPanel.createParallelGroup(Alignment.LEADING)
.addComponent(workerPanel1, GroupLayout.PREFERRED_SIZE, 238, GroupLayout.PREFERRED_SIZE)
.addComponent(workerPanel2, GroupLayout.PREFERRED_SIZE, 238, GroupLayout.PREFERRED_SIZE)
.addComponent(workerPanel3, GroupLayout.PREFERRED_SIZE, 238, GroupLayout.PREFERRED_SIZE)
.addComponent(workerPanel4, GroupLayout.PREFERRED_SIZE, 238, GroupLayout.PREFERRED_SIZE))
.addContainerGap(15, Short.MAX_VALUE))
);
gl_upgradesPanel.setVerticalGroup(
gl_upgradesPanel.createParallelGroup(Alignment.LEADING)
.addGroup(gl_upgradesPanel.createSequentialGroup()
.addContainerGap()
.addComponent(workerPanel1, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(workerPanel2, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(workerPanel3, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(workerPanel4, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addContainerGap(20, Short.MAX_VALUE))
);
upgradesPanel.setLayout(gl_upgradesPanel);
specialPanel = new JPanel();
specialPanel.setBackground(new Color(0,0,0,0.2f));
specialPanel.setBounds(6, 6, 288, 203);
gamePanel.add(specialPanel);
specialPanel.setLayout(null);
String[] columnNames = {"Upgrades", ""};
Object[][] data =
{
{"Vozík +2", "2000$"},
{"Kalhoty +3", "15000$"},
{"Šperháky +4", "50000$"},
{"Auto *2", "200000$"},
};
DefaultTableModel model = new DefaultTableModel(data, columnNames){
@Override
public boolean isCellEditable(int row, int column) {
if(column != 1) return false;
else return true;
}
};
table = new JTable( model );
Action upgradeMultiplier = new AbstractAction()
{
int count = 0;
public void actionPerformed(ActionEvent e)
{
/*
*
JTable table = (JTable)e.getSource();
int modelRow = Integer.valueOf( e.getActionCommand() );
String sPrice = (String) table.getModel().getValueAt(modelRow, 1);
int price = Integer.parseInt(sPrice.substring(0,sPrice.length()-1));
String sMultip = (String) table.getModel().getValueAt(modelRow, 0);
if(sMultip.lastIndexOf("*") != -1) {
int multip = Integer.parseInt(sMultip.substring(sMultip.lastIndexOf("*")+1,sMultip.length()));
if(player.money.getMoney() >= price) {
player.money.deduct(price);
worker.multiplyMultiplier(multip);
((DefaultTableModel)table.getModel()).removeRow(modelRow);
}
} else if(sMultip.lastIndexOf("+") != -1) {
int multip = Integer.parseInt(sMultip.substring(sMultip.lastIndexOf("+")+1,sMultip.length()));
if(player.money.getMoney() >= price) {
player.money.deduct(price);
worker.plusMultiplier(multip);
((DefaultTableModel)table.getModel()).removeRow(modelRow);
}
}
progressBar1.setString(worker.getProfit()+"$");
lblMultiplier.setText(worker.multiplier+"x");
*
*/
}
};
ButtonColumn buttonColumn = new ButtonColumn(table, upgradeMultiplier , 1);
buttonColumn.setMnemonic(KeyEvent.VK_D);
table.setBounds(8, 55, 272, 142);
specialPanel.add(table);
String[] columnNames2 = {"Upgrades", ""};
Object[][] data2 =
{
{"Special +1", "2000$"},
{"Special +3", "15000$"},
{"Special +4", "50000$"},
{"SPecial *2", "200000$"},
};
DefaultTableModel model2 = new DefaultTableModel(data2, columnNames2){
@Override
public boolean isCellEditable(int row, int column) {
if(column != 1) return false;
else return true;
}
};
table2 = new JTable( model2 );
Action specialUpgrade = new AbstractAction()
{
int count = 0;
public void actionPerformed(ActionEvent e)
{
/*
*
JTable table = (JTable)e.getSource();
int modelRow = Integer.valueOf( e.getActionCommand() );
String sPrice = (String) table.getModel().getValueAt(modelRow, 1);
int price = Integer.parseInt(sPrice.substring(0,sPrice.length()-1));
String sMultip = (String) table.getModel().getValueAt(modelRow, 0);
if(sMultip.lastIndexOf("*") != -1) {
int multip = Integer.parseInt(sMultip.substring(sMultip.lastIndexOf("*")+1,sMultip.length()));
if(player.money.getMoney() >= price) {
player.money.deduct(price);
worker.multiplyMultiplier(multip);
((DefaultTableModel)table.getModel()).removeRow(modelRow);
}
} else if(sMultip.lastIndexOf("+") != -1) {
int multip = Integer.parseInt(sMultip.substring(sMultip.lastIndexOf("+")+1,sMultip.length()));
if(player.money.getMoney() >= price) {
player.money.deduct(price);
worker.plusMultiplier(multip);
((DefaultTableModel)table.getModel()).removeRow(modelRow);
}
}
progressBar1.setString(worker.getProfit()+"$");
lblMultiplier.setText(worker.multiplier+"x");
*
*/
}
};
ButtonColumn buttonColumn2 = new ButtonColumn(table, specialUpgrade , 1);
buttonColumn2.setMnemonic(KeyEvent.VK_D);
table2.setBounds(8, 55, 272, 142);
table2.setVisible(false);
specialPanel.add(table2);
upgradesButton = new GameButton();
upgradesButton.setBounds(8, 6, 121, 43);
specialPanel.add(upgradesButton);
upgradesButton.setBackground(new Color(0,0,0,0));
upgradesButton.setLayout(new BorderLayout(0, 0));
GLabel label4 = new GLabel("Upgrades", (GameButton) upgradesButton, SwingConstants.CENTER);
label4.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent arg0) {
table.setVisible(true);
table2.setVisible(false);
}
});
upgradesButton.add(label4);
JPanel specialsButton = new GameButton();
specialsButton.setBounds(159, 6, 121, 43);
specialPanel.add(specialsButton);
specialsButton.setBackground(new Color(0,0,0,0));
specialsButton.setLayout(new BorderLayout(0, 0));
GLabel lblSpecials = new GLabel("Specials", (GameButton) specialsButton, SwingConstants.CENTER);
lblSpecials.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
table.setVisible(false);
table2.setVisible(true);
}
});
specialsButton.add(lblSpecials);
}
}
GamePanel 扩展了 JPanel
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.JPanel;
public class GamePanel extends JPanel {
@Override
public void paintComponent(Graphics g) {
super.paintComponent(g);
try {
final BufferedImage image = ImageIO.read(new File("./res/gameBackground.jpg"));
g.drawImage(image, 0, 0, 300, 400, this);
} catch (IOException e) {
e.printStackTrace();
}
}
}
import java.awt.Color;
import java.awt.Graphics;
import javax.swing.JProgressBar;
public class GProgressbar extends JProgressBar {
private static final long serialVersionUID = 1L;
@Override
public void paintComponent(Graphics g) {
super.paintComponent(g);
}
}
GameButton 扩展 JPanel
import java.awt.Color;
import java.awt.Graphics;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.JPanel;
public class GameButton extends JPanel {
private static final long serialVersionUID = 1L;
boolean entered = false;
boolean pressed = false;
GameButton that = this;
public GameButton() {
this.setOpaque(true);
this.addMouseListener(new MouseAdapter() {
@Override
public void mouseEntered(MouseEvent e) {
that.entered = true;
that.repaint();
}
@Override
public void mouseExited(MouseEvent e) {
that.entered = false;
that.repaint();
}
@Override
public void mouseClicked(MouseEvent e) {
}
@Override
public void mousePressed(MouseEvent e) {
that.pressed = true;
that.repaint();
}
@Override
public void mouseReleased(MouseEvent e) {
that.pressed = false;
that.repaint();
}
});
}
public void paintComponent(Graphics g) {
super.paintComponent(g);
g.setColor(new Color(0,0,0,0));
g.fillRect(0, 0, WIDTH, HEIGHT);
if(!entered) {
try {
final BufferedImage image = ImageIO.read(new File("./res/button.gif"));
g.drawImage( image, 0, 0, this.getWidth(), this.getHeight(), this);
} catch(IOException e) {
e.printStackTrace();
}
} else if(pressed){
try {
final BufferedImage image = ImageIO.read(new File("./res/buttonpressed.gif"));
g.drawImage( image, 0, 0, this.getWidth(), this.getHeight(), this);
} catch(IOException e) {
e.printStackTrace();
}
} else {
try {
final BufferedImage image = ImageIO.read(new File("./res/buttonactive.gif"));
g.drawImage( image, 0, 0, this.getWidth(), this.getHeight(), this);
} catch(IOException e) {
e.printStackTrace();
}
}
}
}
GLabel 扩展了 JLabel
import java.awt.Color;
import java.awt.Graphics;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.JLabel;
public class GLabel extends JLabel{
GameButton that;
public void paintComponent(Graphics g) {
super.paintComponent(g);
g.setColor(new Color(0,0,0,0));
g.fillRect(0, 0, WIDTH, HEIGHT);
}
public GLabel(String s, GameButton that, int center) {
this.setText(s);
this.that = that;
this.setHorizontalAlignment(center);
setForeground(Color.BLACK);
setFont(Menu.fontTerminal.deriveFont(15f));
setBackground(new Color(0,0,0,0));
this.addMouseListener(new MouseAdapter() {
@Override
public void mouseEntered(MouseEvent e) {
that.entered = true;
that.repaint();
}
@Override
public void mouseExited(MouseEvent e) {
that.entered = false;
that.repaint();
}
@Override
public void mouseClicked(MouseEvent e) {
}
@Override
public void mousePressed(MouseEvent e) {
that.pressed = true;
that.repaint();
}
@Override
public void mouseReleased(MouseEvent e) {
that.pressed = false;
that.repaint();
}
});
}
}
您似乎为“workerPanel1”设置了完全透明的 JPanel。
因此，背景显示在 JPanel 后面。
而不是：
workerPanel1.setBackground(new Color(0,0,0,0))
使用：
workerPanel1.setBackground(new Color(0,0,0))
（等同于：new Color(0,0,0,255)）
编辑：
如果您希望保持透明面板，可以使用 JPanel#setOpaque(false) 来实现。
当 opaque 为 false 时，面板根本不绘制其背景，您必须记住面板后面显示的内容。
目前，你有两个按钮显示在它后面，所以你可以设置 Visible(false) 它们或在这个面板处于活动状态时删除它们。
I want to make the background fully transparent.
那么你只需要：
component.setOpaque( false );
如果您需要背景的部分透明度，那么您将得到伪像，因为您将打破与 Swing 组件和不透明的绘画契约 属性。查看
Backgrounds With Transparency 了解更多信息和此问题的解决方案。
在我的自定义 JPanel 中出现图形伪影。我不知道为什么，因为我在我所有的定制画中都使用了 super.paintComponent() 。
- 这是创建时的样子。
2. 这是我点击升级按钮时的样子。
这是代码。
菜单
import java.awt.Color;
import java.awt.EventQueue;
import java.awt.FontFormatException;
import java.awt.Graphics;
import javax.imageio.ImageIO;
import javax.swing.JFrame;
import java.awt.GridBagLayout;
import javax.swing.JPanel;
import java.awt.GridBagConstraints;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.SwingConstants;
import java.awt.BorderLayout;
import java.awt.Font;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
public class Menu {
static JFrame frame;
public static double scale = 1.5;
private static int WIDTH = 300, HEIGHT = 400;
public static Font fontTerminal;
private JPanel menuPanel;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
Menu window = new Menu();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the application.
* @throws IOException
*/
public Menu() throws IOException {
initialize();
}
/**
* Initialize the contents of the frame.
* @throws IOException
*/
private void initialize() throws IOException {
fontTerminal = new Font("Consolas", 1, 1);
try {
fontTerminal = Font.createFont(Font.TRUETYPE_FONT, new File("res/terminal.ttf"));
} catch (FontFormatException e1) {
e1.printStackTrace();
}
frame = new JFrame();
frame.setResizable(false);
frame.setBounds(100, 100, WIDTH, HEIGHT);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
GridBagLayout gridBagLayout = new GridBagLayout();
gridBagLayout.columnWidths = new int[]{0, 0};
gridBagLayout.rowHeights = new int[]{0, 0};
gridBagLayout.columnWeights = new double[]{1.0, Double.MIN_VALUE};
gridBagLayout.rowWeights = new double[]{1.0, Double.MIN_VALUE};
frame.getContentPane().setLayout(gridBagLayout);
menuPanel = new BackgroundPanel();
menuPanel.setLayout(null);
GridBagConstraints gbc_menuPanel = new GridBagConstraints();
gbc_menuPanel.fill = GridBagConstraints.BOTH;
gbc_menuPanel.gridx = 0;
gbc_menuPanel.gridy = 0;
frame.getContentPane().add(menuPanel, gbc_menuPanel);
GameButton newgameButton = new GameButton();
int ngButtWidth = 194, ngButtHeight = 71;
newgameButton.setBounds((frame.getWidth()/2) - (ngButtWidth/2), (frame.getHeight()/2) - (ngButtHeight/2), ngButtWidth, ngButtHeight);
newgameButton.setBackground( new Color(0,0,0,0));
menuPanel.add(newgameButton);
newgameButton.setLayout(new BorderLayout(0, 0));
JLabel newgameLbl = new GLabel("New Game", newgameButton, SwingConstants.CENTER);
newgameLbl.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
GameWindow gp = new GameWindow();
frame.setVisible(false);
}
});
newgameLbl.setFont(fontTerminal.deriveFont(19f));
newgameLbl.setForeground(new Color(0,0,0));
newgameButton.add(newgameLbl, BorderLayout.CENTER);
GameButton creditsButton = new GameButton();
creditsButton.setBackground(new Color(0, 0, 0, 0));
creditsButton.setBounds(56, 262, 194, 71);
menuPanel.add(creditsButton);
creditsButton.setLayout(new BorderLayout(0, 0));
JLabel creditsLabel = new GLabel("Credits", creditsButton, SwingConstants.CENTER);
creditsLabel.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
Credits credits = new Credits();
credits.setVisible(true);
}
});
creditsLabel.setForeground(Color.BLACK);
creditsLabel.setFont(null);
creditsLabel.setBackground(new Color(0, 0, 0, 0));
creditsLabel.setFont(fontTerminal.deriveFont(19f));
creditsButton.add(creditsLabel);
}
}
游戏窗口
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.EventQueue;
import java.awt.Font;
import java.awt.FontFormatException;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.event.ActionEvent;
import java.awt.event.KeyEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.UIManager.*;
import javax.swing.table.DefaultTableModel;
import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.JFrame;
import javax.swing.SwingConstants;
import javax.swing.UIManager;
import javax.swing.JPanel;
import java.awt.Insets;
import java.io.File;
import javax.swing.JButton;
import javax.swing.JLabel;
import java.awt.GridLayout;
import javax.swing.GroupLayout;
import javax.swing.GroupLayout.Alignment;
import javax.swing.LayoutStyle.ComponentPlacement;
import javax.swing.JTabbedPane;
import net.miginfocom.swing.MigLayout;
import java.awt.FlowLayout;
import javax.swing.JTable;
public class GameWindow {
private JFrame frame;
private Font fontTerminal;
private JPanel workerPanel1;
private GProgressbar Bar1;
private GameButton upgradeWorker1;
private JLabel upgradeWorker1_1;
private JPanel workerPanel2;
private GProgressbar Bar2;
private GameButton upgradeWorker2;
private JPanel workerPanel3;
private GProgressbar Bar3;
private GameButton upgradeWorker3;
private JPanel workerPanel4;
private GProgressbar Bar4;
private GameButton upgradeWorker4;
private JPanel upgradesPanel;
private JLabel upgradeWorker2_1;
private JLabel upgradeWorker3_1;
private JLabel upgradeWorker4_1;
private JPanel specialPanel;
private JPanel upgradesButton;
private JTable table, table2;
/**
* Create the application.
*/
public GameWindow() {
initialize();
this.frame.setVisible(true);
}
/**
* Initialize the contents of the frame.
*/
private void initialize() {
try {
for (LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (Exception e) {
// If Nimbus is not available, you can set the GUI to another look and feel.
}
fontTerminal = Menu.fontTerminal;
frame = new JFrame();
frame.setResizable(false);
frame.setBounds(100, 100, 306, 430);
//frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
GridBagLayout gridBagLayout = new GridBagLayout();
gridBagLayout.columnWidths = new int[]{0, 0};
gridBagLayout.rowHeights = new int[]{0, 0};
gridBagLayout.columnWeights = new double[]{1.0, Double.MIN_VALUE};
gridBagLayout.rowWeights = new double[]{1.0, Double.MIN_VALUE};
frame.getContentPane().setLayout(gridBagLayout);
frame.addWindowListener( new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
frame.setVisible(false);
frame.dispose();
Menu.frame.setVisible(true);
}});
GamePanel gamePanel = new GamePanel();
gamePanel.setLayout(null);
GridBagConstraints gbc_menuPanel = new GridBagConstraints();
gbc_menuPanel.fill = GridBagConstraints.BOTH;
gbc_menuPanel.gridx = 0;
gbc_menuPanel.gridy = 0;
frame.getContentPane().add(gamePanel, gbc_menuPanel);
upgradesPanel = new JPanel();
upgradesPanel.setBounds(23, 221, 253, 174);
upgradesPanel.setBackground(new Color(0,0,0,0));
gamePanel.add(upgradesPanel);
workerPanel1 = new JPanel();
workerPanel1.setBackground(new Color(0,0,0,0));
GridBagLayout gbl_workerPanel1 = new GridBagLayout();
gbl_workerPanel1.columnWidths = new int[]{119, 118, 0};
gbl_workerPanel1.rowHeights = new int[]{36, 0};
gbl_workerPanel1.columnWeights = new double[]{0.0, 0.0, Double.MIN_VALUE};
gbl_workerPanel1.rowWeights = new double[]{0.0, Double.MIN_VALUE};
workerPanel1.setLayout(gbl_workerPanel1);
Bar1 = new GProgressbar();
Bar1.setStringPainted(true);
GridBagConstraints gbc_Bar1 = new GridBagConstraints();
gbc_Bar1.fill = GridBagConstraints.BOTH;
gbc_Bar1.insets = new Insets(0, 0, 0, 5);
gbc_Bar1.gridx = 0;
gbc_Bar1.gridy = 0;
workerPanel1.add(Bar1, gbc_Bar1);
upgradeWorker1 = new GameButton();
GridBagConstraints gbc_upgradeWorker1 = new GridBagConstraints();
gbc_upgradeWorker1.fill = GridBagConstraints.BOTH;
gbc_upgradeWorker1.gridx = 1;
gbc_upgradeWorker1.gridy = 0;
workerPanel1.add(upgradeWorker1, gbc_upgradeWorker1);
upgradeWorker1_1 = new GLabel("Upgrade", upgradeWorker1, SwingConstants.CENTER);
upgradeWorker1_1.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
//upgrade worker 1
}
});
upgradeWorker1.setLayout(new BorderLayout(0, 0));
upgradeWorker1_1.setForeground(new Color(0,0,0));
upgradeWorker1.add(upgradeWorker1_1);
workerPanel2 = new JPanel();
workerPanel2.setBackground(new Color(0, 0, 0, 0));
GridBagLayout gbl_panel = new GridBagLayout();
gbl_panel.columnWidths = new int[]{119, 118, 0};
gbl_panel.rowHeights = new int[]{36, 0};
gbl_panel.columnWeights = new double[]{0.0, 0.0, Double.MIN_VALUE};
gbl_panel.rowWeights = new double[]{0.0, Double.MIN_VALUE};
workerPanel2.setLayout(gbl_panel);
Bar2 = new GProgressbar();
Bar2.setStringPainted(true);
GridBagConstraints gbc_Bar2 = new GridBagConstraints();
gbc_Bar2.fill = GridBagConstraints.BOTH;
gbc_Bar2.insets = new Insets(0, 0, 0, 5);
gbc_Bar2.gridx = 0;
gbc_Bar2.gridy = 0;
workerPanel2.add(Bar2, gbc_Bar2);
upgradeWorker2 = new GameButton();
GridBagConstraints gbc_upgradeWorker2 = new GridBagConstraints();
gbc_upgradeWorker2.fill = GridBagConstraints.BOTH;
gbc_upgradeWorker2.gridx = 1;
gbc_upgradeWorker2.gridy = 0;
workerPanel2.add(upgradeWorker2, gbc_upgradeWorker2);
upgradeWorker2.setLayout(new BorderLayout(0, 0));
upgradeWorker2_1 = new GLabel("Upgrade", upgradeWorker2, SwingConstants.CENTER);
upgradeWorker2_1.setForeground(Color.BLACK);
upgradeWorker2_1.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
//upgrade worker 2
}
});
upgradeWorker2.setLayout(new BorderLayout(0, 0));
upgradeWorker2_1.setFont(fontTerminal.deriveFont(15f));
upgradeWorker2.add(upgradeWorker2_1);
workerPanel3 = new JPanel();
workerPanel3.setBackground(new Color(0, 0, 0, 0));
GridBagLayout gbl_workerPanel3 = new GridBagLayout();
gbl_workerPanel3.columnWidths = new int[]{119, 118, 0};
gbl_workerPanel3.rowHeights = new int[]{36, 0};
gbl_workerPanel3.columnWeights = new double[]{0.0, 0.0, Double.MIN_VALUE};
gbl_workerPanel3.rowWeights = new double[]{0.0, Double.MIN_VALUE};
workerPanel3.setLayout(gbl_workerPanel3);
Bar3 = new GProgressbar();
Bar3.setStringPainted(true);
GridBagConstraints gbc_Bar3 = new GridBagConstraints();
gbc_Bar3.fill = GridBagConstraints.BOTH;
gbc_Bar3.insets = new Insets(0, 0, 0, 5);
gbc_Bar3.gridx = 0;
gbc_Bar3.gridy = 0;
workerPanel3.add(Bar3, gbc_Bar3);
upgradeWorker3 = new GameButton();
GridBagConstraints gbc_upgradeWorker3 = new GridBagConstraints();
gbc_upgradeWorker3.fill = GridBagConstraints.BOTH;
gbc_upgradeWorker3.gridx = 1;
gbc_upgradeWorker3.gridy = 0;
workerPanel3.add(upgradeWorker3, gbc_upgradeWorker3);
upgradeWorker3.setLayout(new BorderLayout(0, 0));
upgradeWorker3_1 = new GLabel("Upgrade", upgradeWorker3, SwingConstants.CENTER);
upgradeWorker3.add(upgradeWorker3_1);
workerPanel4 = new JPanel();
workerPanel4.setBackground(new Color(0, 0, 0, 0));
GridBagLayout gbl_workerPanel4 = new GridBagLayout();
gbl_workerPanel4.columnWidths = new int[]{119, 118, 0};
gbl_workerPanel4.rowHeights = new int[]{36, 0};
gbl_workerPanel4.columnWeights = new double[]{0.0, 0.0, Double.MIN_VALUE};
gbl_workerPanel4.rowWeights = new double[]{0.0, Double.MIN_VALUE};
workerPanel4.setLayout(gbl_workerPanel4);
Bar4 = new GProgressbar();
Bar4.setStringPainted(true);
GridBagConstraints gbc_Bar4 = new GridBagConstraints();
gbc_Bar4.fill = GridBagConstraints.BOTH;
gbc_Bar4.insets = new Insets(0, 0, 0, 5);
gbc_Bar4.gridx = 0;
gbc_Bar4.gridy = 0;
workerPanel4.add(Bar4, gbc_Bar4);
upgradeWorker4 = new GameButton();
GridBagConstraints gbc_upgradeWorker4 = new GridBagConstraints();
gbc_upgradeWorker4.fill = GridBagConstraints.BOTH;
gbc_upgradeWorker4.gridx = 1;
gbc_upgradeWorker4.gridy = 0;
workerPanel4.add(upgradeWorker4, gbc_upgradeWorker4);
upgradeWorker4.setLayout(new BorderLayout(0, 0));
upgradeWorker4_1 = new GLabel("Upgrade", upgradeWorker4, SwingConstants.CENTER);
upgradeWorker4.add(upgradeWorker4_1);
GroupLayout gl_upgradesPanel = new GroupLayout(upgradesPanel);
gl_upgradesPanel.setHorizontalGroup(
gl_upgradesPanel.createParallelGroup(Alignment.LEADING)
.addGroup(gl_upgradesPanel.createSequentialGroup()
.addContainerGap()
.addGroup(gl_upgradesPanel.createParallelGroup(Alignment.LEADING)
.addComponent(workerPanel1, GroupLayout.PREFERRED_SIZE, 238, GroupLayout.PREFERRED_SIZE)
.addComponent(workerPanel2, GroupLayout.PREFERRED_SIZE, 238, GroupLayout.PREFERRED_SIZE)
.addComponent(workerPanel3, GroupLayout.PREFERRED_SIZE, 238, GroupLayout.PREFERRED_SIZE)
.addComponent(workerPanel4, GroupLayout.PREFERRED_SIZE, 238, GroupLayout.PREFERRED_SIZE))
.addContainerGap(15, Short.MAX_VALUE))
);
gl_upgradesPanel.setVerticalGroup(
gl_upgradesPanel.createParallelGroup(Alignment.LEADING)
.addGroup(gl_upgradesPanel.createSequentialGroup()
.addContainerGap()
.addComponent(workerPanel1, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(workerPanel2, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(workerPanel3, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(workerPanel4, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addContainerGap(20, Short.MAX_VALUE))
);
upgradesPanel.setLayout(gl_upgradesPanel);
specialPanel = new JPanel();
specialPanel.setBackground(new Color(0,0,0,0.2f));
specialPanel.setBounds(6, 6, 288, 203);
gamePanel.add(specialPanel);
specialPanel.setLayout(null);
String[] columnNames = {"Upgrades", ""};
Object[][] data =
{
{"Vozík +2", "2000$"},
{"Kalhoty +3", "15000$"},
{"Šperháky +4", "50000$"},
{"Auto *2", "200000$"},
};
DefaultTableModel model = new DefaultTableModel(data, columnNames){
@Override
public boolean isCellEditable(int row, int column) {
if(column != 1) return false;
else return true;
}
};
table = new JTable( model );
Action upgradeMultiplier = new AbstractAction()
{
int count = 0;
public void actionPerformed(ActionEvent e)
{
/*
*
JTable table = (JTable)e.getSource();
int modelRow = Integer.valueOf( e.getActionCommand() );
String sPrice = (String) table.getModel().getValueAt(modelRow, 1);
int price = Integer.parseInt(sPrice.substring(0,sPrice.length()-1));
String sMultip = (String) table.getModel().getValueAt(modelRow, 0);
if(sMultip.lastIndexOf("*") != -1) {
int multip = Integer.parseInt(sMultip.substring(sMultip.lastIndexOf("*")+1,sMultip.length()));
if(player.money.getMoney() >= price) {
player.money.deduct(price);
worker.multiplyMultiplier(multip);
((DefaultTableModel)table.getModel()).removeRow(modelRow);
}
} else if(sMultip.lastIndexOf("+") != -1) {
int multip = Integer.parseInt(sMultip.substring(sMultip.lastIndexOf("+")+1,sMultip.length()));
if(player.money.getMoney() >= price) {
player.money.deduct(price);
worker.plusMultiplier(multip);
((DefaultTableModel)table.getModel()).removeRow(modelRow);
}
}
progressBar1.setString(worker.getProfit()+"$");
lblMultiplier.setText(worker.multiplier+"x");
*
*/
}
};
ButtonColumn buttonColumn = new ButtonColumn(table, upgradeMultiplier , 1);
buttonColumn.setMnemonic(KeyEvent.VK_D);
table.setBounds(8, 55, 272, 142);
specialPanel.add(table);
String[] columnNames2 = {"Upgrades", ""};
Object[][] data2 =
{
{"Special +1", "2000$"},
{"Special +3", "15000$"},
{"Special +4", "50000$"},
{"SPecial *2", "200000$"},
};
DefaultTableModel model2 = new DefaultTableModel(data2, columnNames2){
@Override
public boolean isCellEditable(int row, int column) {
if(column != 1) return false;
else return true;
}
};
table2 = new JTable( model2 );
Action specialUpgrade = new AbstractAction()
{
int count = 0;
public void actionPerformed(ActionEvent e)
{
/*
*
JTable table = (JTable)e.getSource();
int modelRow = Integer.valueOf( e.getActionCommand() );
String sPrice = (String) table.getModel().getValueAt(modelRow, 1);
int price = Integer.parseInt(sPrice.substring(0,sPrice.length()-1));
String sMultip = (String) table.getModel().getValueAt(modelRow, 0);
if(sMultip.lastIndexOf("*") != -1) {
int multip = Integer.parseInt(sMultip.substring(sMultip.lastIndexOf("*")+1,sMultip.length()));
if(player.money.getMoney() >= price) {
player.money.deduct(price);
worker.multiplyMultiplier(multip);
((DefaultTableModel)table.getModel()).removeRow(modelRow);
}
} else if(sMultip.lastIndexOf("+") != -1) {
int multip = Integer.parseInt(sMultip.substring(sMultip.lastIndexOf("+")+1,sMultip.length()));
if(player.money.getMoney() >= price) {
player.money.deduct(price);
worker.plusMultiplier(multip);
((DefaultTableModel)table.getModel()).removeRow(modelRow);
}
}
progressBar1.setString(worker.getProfit()+"$");
lblMultiplier.setText(worker.multiplier+"x");
*
*/
}
};
ButtonColumn buttonColumn2 = new ButtonColumn(table, specialUpgrade , 1);
buttonColumn2.setMnemonic(KeyEvent.VK_D);
table2.setBounds(8, 55, 272, 142);
table2.setVisible(false);
specialPanel.add(table2);
upgradesButton = new GameButton();
upgradesButton.setBounds(8, 6, 121, 43);
specialPanel.add(upgradesButton);
upgradesButton.setBackground(new Color(0,0,0,0));
upgradesButton.setLayout(new BorderLayout(0, 0));
GLabel label4 = new GLabel("Upgrades", (GameButton) upgradesButton, SwingConstants.CENTER);
label4.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent arg0) {
table.setVisible(true);
table2.setVisible(false);
}
});
upgradesButton.add(label4);
JPanel specialsButton = new GameButton();
specialsButton.setBounds(159, 6, 121, 43);
specialPanel.add(specialsButton);
specialsButton.setBackground(new Color(0,0,0,0));
specialsButton.setLayout(new BorderLayout(0, 0));
GLabel lblSpecials = new GLabel("Specials", (GameButton) specialsButton, SwingConstants.CENTER);
lblSpecials.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
table.setVisible(false);
table2.setVisible(true);
}
});
specialsButton.add(lblSpecials);
}
}
GamePanel 扩展了 JPanel
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.JPanel;
public class GamePanel extends JPanel {
@Override
public void paintComponent(Graphics g) {
super.paintComponent(g);
try {
final BufferedImage image = ImageIO.read(new File("./res/gameBackground.jpg"));
g.drawImage(image, 0, 0, 300, 400, this);
} catch (IOException e) {
e.printStackTrace();
}
}
}
import java.awt.Color;
import java.awt.Graphics;
import javax.swing.JProgressBar;
public class GProgressbar extends JProgressBar {
private static final long serialVersionUID = 1L;
@Override
public void paintComponent(Graphics g) {
super.paintComponent(g);
}
}
GameButton 扩展 JPanel
import java.awt.Color;
import java.awt.Graphics;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.JPanel;
public class GameButton extends JPanel {
private static final long serialVersionUID = 1L;
boolean entered = false;
boolean pressed = false;
GameButton that = this;
public GameButton() {
this.setOpaque(true);
this.addMouseListener(new MouseAdapter() {
@Override
public void mouseEntered(MouseEvent e) {
that.entered = true;
that.repaint();
}
@Override
public void mouseExited(MouseEvent e) {
that.entered = false;
that.repaint();
}
@Override
public void mouseClicked(MouseEvent e) {
}
@Override
public void mousePressed(MouseEvent e) {
that.pressed = true;
that.repaint();
}
@Override
public void mouseReleased(MouseEvent e) {
that.pressed = false;
that.repaint();
}
});
}
public void paintComponent(Graphics g) {
super.paintComponent(g);
g.setColor(new Color(0,0,0,0));
g.fillRect(0, 0, WIDTH, HEIGHT);
if(!entered) {
try {
final BufferedImage image = ImageIO.read(new File("./res/button.gif"));
g.drawImage( image, 0, 0, this.getWidth(), this.getHeight(), this);
} catch(IOException e) {
e.printStackTrace();
}
} else if(pressed){
try {
final BufferedImage image = ImageIO.read(new File("./res/buttonpressed.gif"));
g.drawImage( image, 0, 0, this.getWidth(), this.getHeight(), this);
} catch(IOException e) {
e.printStackTrace();
}
} else {
try {
final BufferedImage image = ImageIO.read(new File("./res/buttonactive.gif"));
g.drawImage( image, 0, 0, this.getWidth(), this.getHeight(), this);
} catch(IOException e) {
e.printStackTrace();
}
}
}
}
GLabel 扩展了 JLabel
import java.awt.Color;
import java.awt.Graphics;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.JLabel;
public class GLabel extends JLabel{
GameButton that;
public void paintComponent(Graphics g) {
super.paintComponent(g);
g.setColor(new Color(0,0,0,0));
g.fillRect(0, 0, WIDTH, HEIGHT);
}
public GLabel(String s, GameButton that, int center) {
this.setText(s);
this.that = that;
this.setHorizontalAlignment(center);
setForeground(Color.BLACK);
setFont(Menu.fontTerminal.deriveFont(15f));
setBackground(new Color(0,0,0,0));
this.addMouseListener(new MouseAdapter() {
@Override
public void mouseEntered(MouseEvent e) {
that.entered = true;
that.repaint();
}
@Override
public void mouseExited(MouseEvent e) {
that.entered = false;
that.repaint();
}
@Override
public void mouseClicked(MouseEvent e) {
}
@Override
public void mousePressed(MouseEvent e) {
that.pressed = true;
that.repaint();
}
@Override
public void mouseReleased(MouseEvent e) {
that.pressed = false;
that.repaint();
}
});
}
}
您似乎为“workerPanel1”设置了完全透明的 JPanel。
因此，背景显示在 JPanel 后面。
而不是：
workerPanel1.setBackground(new Color(0,0,0,0))
使用：
workerPanel1.setBackground(new Color(0,0,0))
（等同于：new Color(0,0,0,255)）
编辑：
如果您希望保持透明面板，可以使用 JPanel#setOpaque(false) 来实现。
当 opaque 为 false 时，面板根本不绘制其背景，您必须记住面板后面显示的内容。
目前，你有两个按钮显示在它后面，所以你可以设置 Visible(false) 它们或在这个面板处于活动状态时删除它们。
I want to make the background fully transparent.
那么你只需要：
component.setOpaque( false );
如果您需要背景的部分透明度，那么您将得到伪像，因为您将打破与 Swing 组件和不透明的绘画契约 属性。查看 Backgrounds With Transparency 了解更多信息和此问题的解决方案。