GridBagLayout遇到困难

Question

我想使用GridBagLayout布局如图所示的组件 我已经尝试了几个约束，但它永远不会得到预期的结果，所以我开始怀疑它是否真的只有GridBagLayout。困难在于C1，C2和C3组件 C1和C2是JComponent，其中包含其他组件，如JPanel。我已经设定了他们的最小和首选尺寸。 C3是JButton C1不应占用额外的空间，所以我将它的权重x设置为0，将网格宽度设置为1（同时尝试使用2，因为它跨越C2和C3）。
C2占用了所有额外的空间，我将它的权重x设置为1，网格宽度设置为3 GUI不可调整大小 我已多次使用此LayoutManager但仍未掌握它，谢谢你的帮助。

Answer 1

• 我只会谈论GridBagLayout，即使这可能完全适用于MigLayout（MigLayout还有其他参数用于填充列和行数，调整大小，ei），以及/或TableLayout(???)

• GridBagLayout只需填充第一行中所有所需数量的列（仅限），然后创建矩阵，您可以定义GBC weightx, weighty, gridx, gridy和/或Anchor太

• 谈论

的例子

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();
            }
        });
    }
}

Answer 2

我担心这是不可能的。 GridBagLayout无法弄清楚C1的开始和C3的开始之间的适当距离。