我只想使用GridBagLayout布局组件,如图所示
我尝试了几个约束,但最终都没有得到预期的结果,所以我想知道,仅使用GridBagLayout是否真的可行。困难在于C1、C2和C3部件
C1和C2是一个组件,它将容纳其他组件,如JPanel。我已经设置了它们的最小尺寸和首选尺寸。C3是一个按钮
这个布局管理器我已经用了好几次了,但还是不太熟练,谢谢你的帮助。
>
只需填写第一行(仅)中所有所需的列数,即可创建矩阵,您可以定义GBC weightx、weighty、gridx、gridy和/或锚定
示例讨论
import java.awt.Color;
import java.awt.ComponentOrientation;
import java.awt.Font;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import javax.swing.BorderFactory;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.SwingConstants;
import javax.swing.SwingUtilities;
public class GbcLayout {
private JFrame frame = new JFrame("GbcLayoutGbcLayout");
private JPanel panel = new JPanel();
private JLabel hidelLabel;
private JLabel firstLabel;
private JTextField firstText;
public GbcLayout() {
panel.setLayout(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
panel.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
for (int k = 0; k < 50; k++) {
hidelLabel = new JLabel(" ");
hidelLabel.setOpaque(true);
hidelLabel.setBackground(Color.orange);
hidelLabel.setBorder(BorderFactory.createLineBorder(Color.BLACK, 1));
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.weightx = 0.5;
gbc.weighty = 0.5;
gbc.gridx = k;
gbc.gridy = 0;
panel.add(hidelLabel, gbc);
}
for (int k = 0; k < 5; k++) {
firstLabel = new JLabel("Testing Label : ", SwingConstants.RIGHT);
firstLabel.setFont(new Font("Serif", Font.BOLD, 20));
firstLabel.setBorder(BorderFactory.createLineBorder(Color.BLACK, 1));
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.insets = new Insets(0, 0, 5, 0);
gbc.gridx = 0;
gbc.gridwidth = 8;
gbc.gridy = k + 1;
panel.add(firstLabel, gbc);
}
for (int k = 0; k < 5; k++) {
firstText = new JTextField("Testing TextField");
firstText.setFont(new Font("Serif", Font.BOLD, 20));
firstText.setBorder(BorderFactory.createLineBorder(Color.BLACK, 1));
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.insets = new Insets(0, 0, 5, 0);
gbc.gridx = 9;
gbc.gridwidth = k + 8;
gbc.gridy = k + 1;
panel.add(firstText, gbc);
}
for (int k = 0; k < 5; k++) {
firstLabel = new JLabel("Testing Label : ", SwingConstants.RIGHT);
firstLabel.setFont(new Font("Serif", Font.BOLD, 20));
firstLabel.setBorder(BorderFactory.createLineBorder(Color.BLACK, 1));
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.insets = new Insets(0, 0, 5, 0);
gbc.gridx = 20 + k;
gbc.gridwidth = 8;
gbc.gridy = k + 1;
panel.add(firstLabel, gbc);
}
for (int k = 0; k < 5; k++) {
firstText = new JTextField("Testing TextField");
firstText.setFont(new Font("Serif", Font.BOLD, 20));
firstText.setBorder(BorderFactory.createLineBorder(Color.BLACK, 1));
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.insets = new Insets(0, 0, 5, 0);
gbc.gridx = 29 + k;
gbc.gridwidth = 21 - k;
gbc.gridy = k + 1;
panel.add(firstText, gbc);
}
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(panel);
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
GbcLayout gbcl = new GbcLayout();
}
});
}
}
恐怕这是不可能的。GridBagLayout
无法计算出C1开始和C3开始之间的适当距离。