Java 从按钮网格绘制特定按钮
以下按钮网格定义为：Java 从按钮网格绘制特定按钮,java,swing,repaint,paintcomponent,Java,Swing,Repaint,Paintcomponent,以下按钮网格定义为： JButton button_x = new RoundButton(); public class RoundButton extends JButton { public RoundButton(String label) { super(label); this.setContentAreaFilled(false); Dimension size = this.getPreferredSize();
JButton button_x = new RoundButton();
public class RoundButton extends JButton {
public RoundButton(String label) {
super(label);
this.setContentAreaFilled(false);
Dimension size = this.getPreferredSize();
size.height = size.width = Math.max(size.height, size.width);
this.setPreferredSize(size);
}
@Override
protected void paintComponent(Graphics g) {
if(!GameState.getIfComplete()) { // If the game is not complete or has just started
this.setBorder(null);
g.setColor(Color.BLACK);
g.fillRect(0, 0, this.getSize().width, this.getSize().height);
if(this.getModel().isArmed()) {
g.setColor(Color.RED);
}else {
g.setColor(Color.GREEN);
}
g.fillOval(0,0,this.getSize().width-1,this.getSize().height-1);
super.paintComponent(g);
}else {
this.setBorder(null);
g.setColor(Color.BLACK);
g.fillRect(0, 0, this.getSize().width, this.getSize().height);
g.setColor(Color.WHITE);
g.fillOval(0,0,this.getSize().width-1,this.getSize().height-1);
super.paintComponent(g);
}
}
JButton button_x = new RoundButton();
public class RoundButton extends JButton {
public RoundButton(String label) {
super(label);
this.setContentAreaFilled(false);
Dimension size = this.getPreferredSize();
size.height = size.width = Math.max(size.height, size.width);
this.setPreferredSize(size);
}
@Override
protected void paintComponent(Graphics g) {
if(!GameState.getIfComplete()) { // If the game is not complete or has just started
this.setBorder(null);
g.setColor(Color.BLACK);
g.fillRect(0, 0, this.getSize().width, this.getSize().height);
if(this.getModel().isArmed()) {
g.setColor(Color.RED);
}else {
g.setColor(Color.GREEN);
}
g.fillOval(0,0,this.getSize().width-1,this.getSize().height-1);
super.paintComponent(g);
}else {
this.setBorder(null);
g.setColor(Color.BLACK);
g.fillRect(0, 0, this.getSize().width, this.getSize().height);
g.setColor(Color.WHITE);
g.fillOval(0,0,this.getSize().width-1,this.getSize().height-1);
super.paintComponent(g);
}
}
这个电话怎么了？如何绘制一个特定的按钮？问题在于对游戏状态的依赖，所有圆形按钮都使用相同的逻辑绘制它们自己，也就是说，当游戏完成时，它们都将被绘制为白色 相反，您应该依赖按钮的属性。对其进行设置，使颜色实际上源自按钮本身
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Graphics;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
public class BadButton01 {
public static void main(String[] args) {
new BadButton01();
}
public BadButton01() {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
}
JFrame frame = new JFrame("Testing");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLayout(new BorderLayout());
frame.add(new TestPane());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
public static class GameState {
private static boolean isComplete;
public static boolean getIfComplete() {
return isComplete;
}
public static void setComplete(boolean value) {
isComplete = value;
}
}
public class TestPane extends JPanel {
private RoundButton[] btns = new RoundButton[]
{
new RoundButton("1"),
new RoundButton("2"),
new RoundButton("3"),
new RoundButton("4"),
new RoundButton("5"),
new RoundButton("6"),
new RoundButton("7"),
new RoundButton("8"),
new RoundButton("9")
};
public TestPane() {
setLayout(new GridLayout(3, 3));
for (RoundButton btn : btns) {
add(btn);
}
btns[0].addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
GameState.setComplete(true);
btns[0].setBackground(Color.WHITE);
btns[1].setBackground(Color.WHITE);
btns[2].setBackground(Color.WHITE);
repaint();
}
});
}
}
public class RoundButton extends JButton {
public RoundButton(String label) {
super(label);
this.setContentAreaFilled(false);
setBorderPainted(false);
setFocusPainted(false);
setOpaque(false);
Dimension size = this.getPreferredSize();
size.height = size.width = Math.max(size.height, size.width);
this.setPreferredSize(size);
setBackground(Color.GREEN);
}
@Override
protected void paintComponent(Graphics g) {
// if (!GameState.getIfComplete()) { // If the game is not complete or has just started
// this.setBorder(null);
// g.setColor(Color.BLACK);
// g.fillRect(0, 0, this.getSize().width, this.getSize().height);
if (this.getModel().isArmed()) {
g.setColor(Color.RED);
} else {
// g.setColor(Color.GREEN);
g.setColor(getBackground());
}
// } else {
// this.setBorder(null);
// g.setColor(Color.BLACK);
// g.fillRect(0, 0, this.getSize().width, this.getSize().height);
// g.setColor(Color.WHITE);
// g.fillOval(0, 0, this.getSize().width - 1, this.getSize().height - 1);
// g.setColor(getBackground());
// }
g.fillOval(0, 0, this.getSize().width - 1, this.getSize().height - 1);
super.paintComponent(g);
}
}
}
问题在于对游戏状态的依赖，所有圆形按钮都使用相同的逻辑来绘制它们自己，也就是说，当游戏完成时，它们都将被绘制为白色 相反，您应该依赖按钮的属性。对其进行设置，使颜色实际上源自按钮本身
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Graphics;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
public class BadButton01 {
public static void main(String[] args) {
new BadButton01();
}
public BadButton01() {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
}
JFrame frame = new JFrame("Testing");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLayout(new BorderLayout());
frame.add(new TestPane());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
public static class GameState {
private static boolean isComplete;
public static boolean getIfComplete() {
return isComplete;
}
public static void setComplete(boolean value) {
isComplete = value;
}
}
public class TestPane extends JPanel {
private RoundButton[] btns = new RoundButton[]
{
new RoundButton("1"),
new RoundButton("2"),
new RoundButton("3"),
new RoundButton("4"),
new RoundButton("5"),
new RoundButton("6"),
new RoundButton("7"),
new RoundButton("8"),
new RoundButton("9")
};
public TestPane() {
setLayout(new GridLayout(3, 3));
for (RoundButton btn : btns) {
add(btn);
}
btns[0].addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
GameState.setComplete(true);
btns[0].setBackground(Color.WHITE);
btns[1].setBackground(Color.WHITE);
btns[2].setBackground(Color.WHITE);
repaint();
}
});
}
}
public class RoundButton extends JButton {
public RoundButton(String label) {
super(label);
this.setContentAreaFilled(false);
setBorderPainted(false);
setFocusPainted(false);
setOpaque(false);
Dimension size = this.getPreferredSize();
size.height = size.width = Math.max(size.height, size.width);
this.setPreferredSize(size);
setBackground(Color.GREEN);
}
@Override
protected void paintComponent(Graphics g) {
// if (!GameState.getIfComplete()) { // If the game is not complete or has just started
// this.setBorder(null);
// g.setColor(Color.BLACK);
// g.fillRect(0, 0, this.getSize().width, this.getSize().height);
if (this.getModel().isArmed()) {
g.setColor(Color.RED);
} else {
// g.setColor(Color.GREEN);
g.setColor(getBackground());
}
// } else {
// this.setBorder(null);
// g.setColor(Color.BLACK);
// g.fillRect(0, 0, this.getSize().width, this.getSize().height);
// g.setColor(Color.WHITE);
// g.fillOval(0, 0, this.getSize().width - 1, this.getSize().height - 1);
// g.setColor(getBackground());
// }
g.fillOval(0, 0, this.getSize().width - 1, this.getSize().height - 1);
super.paintComponent(g);
}
}
}
您可能只需要创建彩色图标并将其设置为标准按钮。为了更快地获得更好的帮助，请发布一个。我相信我已经通过调用this.setboordnull解决了这个问题；这是一个可怕的坏主意。如果不希望设置边框，请尝试重写getBorder方法并从返回nullit@MadProgrammer是 啊我也解决了这个问题。这在这里得到了反映。@saplingPro没问题，我还添加了一些额外的想法；您可能只需要创建彩色图标并将其设置为标准按钮。为了更快地获得更好的帮助，请发布一个。我相信我已经通过调用this.setboordnull解决了这个问题；这是一个可怕的坏主意。如果不希望设置边框，请尝试重写getBorder方法并从返回nullit@MadProgrammer是 啊我也解决了这个问题。这在这里得到了反映。@saplingPro没问题，我还添加了一些额外的想法；为什么调用按钮[btn_number]不显示呢？重新绘制不会只绘制特定的按钮，因为这不是绘制的方式。重绘管理器接受所有重绘请求，并可以将它们组合成单个请求，其中可能包括其他组件。克服你控制绘画过程的错觉，你不控制，重新绘画！是的。查看更深入的解释，以及为什么呼叫按钮[btn_number]没有。重新绘制不会只绘制特定的按钮，因为这不是绘制的方式。重绘管理器接受所有重绘请求，并可以将它们组合成单个请求，其中可能包括其他组件。克服你控制绘画过程的错觉，你不控制，重新绘画！是的。查看更不深入的解释