我有一个扩展类JPanel
,我想嵌入到JFrame
. L&F 设置为 Nimbus,我用于面板的布局是GridBagLayout
.
当我将 JAR 给朋友时,JTextArea
我打算用作日志控制台的一个开始起作用并且不会保持我设置的大小。
textAreaLog.setMinimumSize(new Dimension(295, 48));
我使用的是 WinXP SP2,而我的朋友使用的是 Win7 64 位。这是它在我的电脑(左)和他的电脑(右)上的样子:
显然,我打算让它成为我在我的机器上的方式。
这是相关代码(几乎是面板使用的整个类):
package com.sassilization.mapfix.gui;
// Imports the package with the inner-workings of the application
import com.sassilization.mapfix.MapFixGenerator;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class LogPanel extends JPanel {
private static final long serialVersionUID = 8324191587703173738L;
/*
* Constructor
*/
public LogPanel() {
setPreferredSize(new Dimension(350, 70));
// Creates a default Nimbus border
setBorder(BorderFactory.createTitledBorder((String) null));
setOpaque(false);
setLayout(new GridBagLayout());
// Calls the method which initializes all the components
initComponents();
}
/*
* Component declarations
*/
private JButton buttonFgd;
private JButton buttonHelp;
private JButton buttonLogCopy;
private JButton buttonLogDown;
private JButton buttonLogUp;
private JTextArea textAreaLog;
private JToggleButton toggleButtonAppend;
/*
* Initializes and adds all the components to the panel
*/
private void initComponents() {
// The constraints used to lay out the components in a GBL
GridBagConstraints gbc = new GridBagConstraints();
// The brick button
toggleButtonAppend = new JToggleButton(appendIcons[0]);
toggleButtonAppend.setBorder(BorderFactory.createEmptyBorder());
toggleButtonAppend.setToolTipText("Turn append mode on");
toggleButtonAppend.addItemListener(new ItemListener() {
public void itemStateChanged(ItemEvent event) {
buttonAppendItemStateChanged(event);
}
});
add(toggleButtonAppend, gbc);
// The question mark button
buttonHelp = new JButton(new ImageIcon(getClass().getResource("resources/help.png")));
buttonHelp.setBorder(BorderFactory.createEmptyBorder());
buttonHelp.setToolTipText("Open help");
buttonHelp.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent event) {
// buttonHelpActionPerformed(event);
}
});
gbc.gridy = 1;
add(buttonHelp, gbc);
// The white page button
buttonFgd = new JButton(new ImageIcon(getClass().getResource("resources/page_white_put.png")));
buttonFgd.setBorder(BorderFactory.createEmptyBorder());
buttonFgd.setToolTipText("Extract FGD file");
buttonFgd.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent event) {
// buttonFgdActionPerformed(event);
}
});
gbc.gridy = 2;
add(buttonFgd, gbc);
// The problematic JTextArea
textAreaLog = new JTextArea();
textAreaLog.setMinimumSize(new Dimension(295, 48));
textAreaLog.setBorder(BorderFactory.createMatteBorder(0, 12, 0, 0,
new ImageIcon(getClass().getResource("resources/border.png"))));
textAreaLog.setBackground(new Color(0, 0, 0, 0));
textAreaLog.setForeground(new Color(171, 193, 207));
textAreaLog.setFont(new Font(null, Font.PLAIN, 9));
textAreaLog.setLineWrap(true);
textAreaLog.setWrapStyleWord(true);
textAreaLog.setEditable(false);
gbc.gridx = 1;
gbc.gridy = 0;
gbc.gridheight = 3;
add(textAreaLog, gbc);
// The up arrow button
buttonLogUp = new JButton(new ImageIcon(getClass().getResource("resources/bullet_arrow_up.png")));
buttonLogUp.setBorder(BorderFactory.createEmptyBorder());
buttonLogUp.setContentAreaFilled(false);
buttonLogUp.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent event) {
// buttonLogUpActionPerformed(event);
}
});
gbc.gridx = 2;
gbc.gridheight = 1;
add(buttonLogUp, gbc);
// The floppy disk button
buttonLogCopy = new JButton(new ImageIcon(getClass().getResource("resources/bullet_disk.png")));
buttonLogCopy.setBorder(BorderFactory.createEmptyBorder());
buttonLogCopy.setContentAreaFilled(false);
buttonLogCopy.setToolTipText("Copy log to clipboard");
buttonLogCopy.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent event) {
// buttonLogCopyActionPerformed(event);
}
});
gbc.gridy = 1;
add(buttonLogCopy, gbc);
// The down arrow button
buttonLogDown = new JButton(new ImageIcon(getClass().getResource("resources/bullet_arrow_down.png")));
buttonLogDown.setBorder(BorderFactory.createEmptyBorder());
buttonLogDown.setContentAreaFilled(false);
buttonLogDown.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent event) {
// buttonLogDownActionPerformed(event);
}
});
gbc.gridy = 2;
add(buttonLogDown, gbc);
}
private ImageIcon appendIcons[] = { new ImageIcon(getClass().getResource("resources/brick.png")),
new ImageIcon(getClass().getResource("resources/brick_add.png")) };
/*
* Event listener methods for the components go here.
*/
}
此外,这是实例化 的主JFrame
类LogPanel
,尽管没有注释。还包括 JAR 的下载链接。
我正在使用JPanel.setMinimumSize()
,所以我可以在JTextArea
不使用JScrollPane
. 我认为显示不一致与此有关。如果我确实使用 a JScrollPane
,它会完全弄乱面板布局,所以我宁愿远离。
提前致谢。
编辑1:
如果我将 L&F 更改为默认值或系统 L&F,我会遇到与朋友相同的问题;因此,这很可能与 Nimbus 本身有关。
编辑2:
事实证明,我使用的 JDK6 和 JDK7 之间的 Nimbus 代码存在差异。从那以后,我已经更新并替换了错误的代码
setPreferredSize()
——它现在很好用。