[英]Building a GUI using GridBagLayout (Java)
I am trying to build a GUI for a little Java game using a GridBagLayout. 我正在尝试使用GridBagLayout构建一个Java游戏的GUI。 Finally it should look like this: 最后,它应该看起来像这样:
This is my code: 这是我的代码:
private GridBagConstraints c;
...
c.gridx = 1;
c.gridy = 0;
c.weightx = 0;
add(playButton, c);
c.gridx = 1;
c.gridy = 1;
c.weightx = 0;
add(optionsButton, c);
c.gridx = 1;
c.gridy = 2;
c.weightx = 0;
add(manualButton, c);
c.gridx = 1;
c.gridy = 3;
c.weightx = 0;
add(exitButton, c);
c.gridx = 0;
c.gridy = 4;
c.weightx = 1;
c.anchor = GridBagConstraints.SOUTHWEST;
add(creditsButton, c);
c.gridx = 2;
c.gridy = 4;
c.weightx = 1;
c.anchor = GridBagConstraints.SOUTHEAST;
add(legalNoticeButton, c);
At the moment it looks like this: 现在看起来像这样:
My question is who I can set the two buttons to the bottom without setting the four other bottoms to the top? 我的问题是谁可以将两个按钮设置到底部而又不将其他四个底部设置在顶部?
Something like this is more or less @Gilbert Le Blanc explained (with minor differences): @Gilbert Le Blanc解释了这样的事(略有不同):
Basically use another panel to move your two buttons to the south and spread them to WEST and EAST: 基本上,使用另一个面板将您的两个按钮移到南方,然后将它们分布到WEST和EAST:
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
public class TestGridBagLayout {
protected void initUI() {
JFrame frame = new JFrame("test");
final JPanel centerPanel = new JPanel();
centerPanel.setLayout(new GridBagLayout());
JButton playButton = new JButton("Play");
JButton optionsButton = new JButton("Options");
JButton manualButton = new JButton("Manual");
JButton exitButton = new JButton("Exit");
JButton creditsButton = new JButton("Credits");
JButton legalNoticeButton = new JButton("Legal");
GridBagConstraints c = new GridBagConstraints();
c.gridwidth = GridBagConstraints.REMAINDER;
centerPanel.add(playButton, c);
centerPanel.add(optionsButton, c);
centerPanel.add(manualButton, c);
centerPanel.add(exitButton, c);
JPanel bottomPanel = new JPanel(new BorderLayout());
bottomPanel.add(creditsButton, BorderLayout.WEST);
// Filler component that avoids having the bottom panel too small
bottomPanel.add(new JComponent() {
@Override
public Dimension getPreferredSize() {
return new Dimension(centerPanel.getPreferredSize().width, 0);
}
});
bottomPanel.add(legalNoticeButton, BorderLayout.EAST);
frame.add(centerPanel);
frame.add(bottomPanel, BorderLayout.SOUTH);
frame.pack();
frame.setMinimumSize(frame.getPreferredSize());
frame.setVisible(true);
}
public static void main(String[] args) throws ClassNotFoundException, InstantiationException, IllegalAccessException,
UnsupportedLookAndFeelException {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
new TestGridBagLayout().initUI();
}
});
}
}
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