Question

我遇到了Mig布局的问题。我已经开始重新创建JFrame的主要JPanel，我过去使用过绝对布局。最初一切顺利（cfr第二张图片）。控制台面板（带有标签面板的Box的一部分）具有良好的对齐方式，但仍然是绝对布局。当我开始将各个JPanels的布局转换为Mig布局时，它看起来像第一个图像（没有左对齐）。同样的结果也适用于我已经将绝对布局更改为Mig布局的其他JPanel。

http://i.stack.imgur.com/97Yop.png [BAD] http://i.stack.imgur.com/KTLGK.png [好]

http://i.stack.imgur.com/p3qWZ.png [debug 1000 alignments]

这是我的帧类的简化版本。结构看起来很奇怪，因为我试图尽可能地减少它。我也删除了ControlConsolePanel，因为我的问题甚至会出现带有MigLayout的默认JPanel。

import java.awt.Color;
import java.awt.EventQueue;
import java.awt.Font;

import javax.swing.BorderFactory;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTabbedPane;
import javax.swing.JTextArea;
import javax.swing.border.Border;
import javax.swing.border.TitledBorder;
import net.miginfocom.swing.MigLayout;

public class MainControll extends JFrame{

    private static final long serialVersionUID = 14L;
private JPanel configurationPane;
private JPanel feedbackPane;
private JTextArea feedback;
private JTabbedPane plotTabPane;
private JPanel consolePane;

public static void main(String[] args) {
    EventQueue.invokeLater(new Runnable() {
        public void run(){
            try {
                MainControll frame = new MainControll();
                frame.setVisible(true);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    });
}

public MainControll(){
    setTitle("test");
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setBounds(100, 100, 860, 660);
    initiateComponents();
}

private Box rightPanel;

private void initiateComponents() {
        JPanel mainPanel = new JPanel();
        mainPanel.setLayout(new MigLayout("insets 0, debug 1000", "", ""));

            this.configurationPane = new JPanel();
            this.configurationPane.setBorder(getTitleBorder("Configuration"));
            this.configurationPane.setLayout(new MigLayout());

        this.plotTabPane = new JTabbedPane();
            this.plotTabPane.add("Tab1", new JPanel());
            this.consolePane = new JPanel(new MigLayout("","",""));
            // --> The MigLayout ruins the frame.
            // --> change it to this and look at the difference:
            //                  this.consolePane = new JPanel();
            this.consolePane.setBorder(getTitleBorder("Console"));

            this.feedback = new JTextArea();
        this.feedbackPane = new JPanel();
        this.feedbackPane.setBorder(getTitleBorder("Status"));
        this.feedbackPane.setLayout(new MigLayout());
        JScrollPane sbrText = new JScrollPane(this.feedback);
        this.feedbackPane.add(sbrText, "push, grow");

        this.rightPanel = new Box(BoxLayout.Y_AXIS);
        this.rightPanel.add(this.plotTabPane);
            this.rightPanel.add(this.consolePane);

        mainPanel.add(this.configurationPane, "shrinky, top, w 450!");
        mainPanel.add(this.rightPanel, "spany 5, wrap, grow, pushx, wmin 400");
        mainPanel.add(this.feedbackPane, "pushy, growy, w 450!");

        JScrollPane contentScrollPane = new JScrollPane(mainPanel);
        contentScrollPane.setBorder(BorderFactory.createEmptyBorder());
        setContentPane(contentScrollPane);
}

private Border getTitleBorder(String title){
    return BorderFactory.createTitledBorder(null, title, TitledBorder.LEFT,       TitledBorder.TOP, new Font("null", Font.BOLD, 12), Color.BLUE);
}
 }

目标：关键是我希望控制台面板和绘图面板适合右面板而没有间隙（完美的边框对齐），根据右面板的增长和收缩行为进行扩展和缩小。

编辑：我最近发现了一个。如果我将Mig布局面板放在JTabbedPane中，它就可以工作。如果我将Mig布局面板放在单独的JPanel中，它就无法工作。但是如何以及为什么，我不是一个线索。 enter image description here

Answer 1

我认为问题是你仍然使用BoxLayout。我添加了一些更多的MigLayout，现在它看起来像你想要的。

import java.awt.Color;
import java.awt.EventQueue;
import java.awt.Font;
import javax.swing.BorderFactory;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTabbedPane;
import javax.swing.JTextArea;
import javax.swing.border.Border;
import javax.swing.border.TitledBorder;
import net.miginfocom.swing.MigLayout;

public class MainControl extends JFrame {

    private static final long serialVersionUID = 14L;
    private JPanel configurationPane;
    private JPanel feedbackPane;
    private JTextArea feedback;
    private JTabbedPane plotTabPane;
    private JPanel consolePane;
    private JPanel rightPanel;

    public MainControl() {
        setTitle("test");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setBounds(100, 100, 860, 660);
        initiateComponents();
    }

    private void initiateComponents() {
        JPanel mainPanel = new JPanel();

        configurationPane = new JPanel();
        configurationPane.setBorder(getTitleBorder("Configuration"));
        configurationPane.setLayout(new MigLayout());

        plotTabPane = new JTabbedPane();
        plotTabPane.add("Tab1", new JPanel());

        consolePane = new JPanel(new MigLayout("", "", ""));
        consolePane.setBorder(getTitleBorder("Console"));

        feedback = new JTextArea();
        feedbackPane = new JPanel();
        feedbackPane.setBorder(getTitleBorder("Status"));
        feedbackPane.setLayout(new MigLayout());
        JScrollPane sbrText = new JScrollPane(feedback);
        feedbackPane.add(sbrText, "push, grow");

        rightPanel = new JPanel(new MigLayout("fill"));
        rightPanel.add(plotTabPane, "grow, wrap");
        rightPanel.add(consolePane, "grow");

        mainPanel.setLayout(new MigLayout("insets 0, debug 1000", "", ""));
        mainPanel.add(configurationPane, "shrinky, top, w 450!");
        mainPanel.add(rightPanel, "spany 5, wrap, grow, pushx, wmin 380");
        mainPanel.add(feedbackPane, "pushy, growy, w 450!");

        JScrollPane contentScrollPane = new JScrollPane(mainPanel);
        contentScrollPane.setBorder(BorderFactory.createEmptyBorder());
        setContentPane(contentScrollPane);
    }

   private static Border getTitleBorder(String title) {
        return BorderFactory.createTitledBorder(null, title, TitledBorder.LEFT, TitledBorder.TOP, new Font("null", Font.BOLD, 12), Color.BLUE);
    }

    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            @Override
            public void run() {
                try {
                    MainControl frame = new MainControl();
                    frame.setVisible(true);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }
}

Mig布局：错误对齐

1 个答案: