在JPopupmenu中对齐图标和JCheckbox
我在JPopupMenu中遇到了一些图标和复选框的问题。 复选框和图标未对齐
项目创建如下：
JMenuItem deleteAttributeMenuItem = new JMenuItem(locale.getString("TREE_AttrDelete"), iconDelete); JMenuItem primaryKeyAttributeMenuItem = new JCheckBoxMenuItem(locale.getString("TREE_AttrChkBoxPK"));
请看看图片：
有小费吗？
看看这个，为了实现你想要的，我做到了，
JCheckBoxMenuItem cbmi = new JCheckBoxMenuItem("Check Me", null, true); cbmi.setMargin(new java.awt.Insets(5, 25, 5, 5)); cbmi.setIconTextGap(15); cbmi.setHorizontalTextPosition(javax.swing.SwingConstants.LEFT); helpMenu.add(cbmi);
这是所述东西的输出：
现在我找不到如何重新布局JCheckBoxMenuItem的正确方法，
但你是否赞同使用（默认）Metal Look and Feel ???来摆脱Swing的标准输出，只是为了通过使用另一种外观来避免任何误解，因为在Swing的标准外观之间的API有一些不同之处和感觉也一样
来自教程代码（修改和删除的balasts和噪音）
import java.awt.*; import java.awt.event.*; import javax.swing.*; public class MenuLookDemo { private Icon errorIcon = UIManager.getIcon("OptionPane.errorIcon"); private Icon infoIcon = UIManager.getIcon("OptionPane.informationIcon"); private Icon warnIcon = UIManager.getIcon("OptionPane.warningIcon"); private JTextArea output; private JScrollPane scrollPane; private JMenuBar menuBar; private JMenu menu; private JMenuItem menuItem; private JRadioButtonMenuItem rbMenuItem; private JCheckBoxMenuItem cbMenuItem; public JMenuBar createMenuBar() { menuBar = new JMenuBar(); menu = new JMenu("A Menu"); menu.getAccessibleContext().setAccessibleDescription("The only menu in this program that has menu items"); menuBar.add(menu); menuItem = new JMenuItem("A text-only menu item", KeyEvent.VK_T); menuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_1, ActionEvent.ALT_MASK)); menuItem.getAccessibleContext().setAccessibleDescription("This doesn't really do anything"); menu.add(menuItem); menuItem = new JMenuItem("Both text and icon", errorIcon); menu.add(menuItem); menu.addSeparator(); ButtonGroup group = new ButtonGroup(); rbMenuItem = new JRadioButtonMenuItem("A radio button menu item"); rbMenuItem.setSelected(true); group.add(rbMenuItem); menu.add(rbMenuItem); rbMenuItem = new JRadioButtonMenuItem("Another one", infoIcon); group.add(rbMenuItem); menu.add(rbMenuItem); menu.addSeparator(); cbMenuItem = new JCheckBoxMenuItem("A check box menu item", warnIcon); menu.add(cbMenuItem); cbMenuItem = new JCheckBoxMenuItem("Another one"); menu.add(cbMenuItem); menu.addSeparator(); return menuBar; } public Container createContentPane() { JPanel contentPane = new JPanel(new BorderLayout()); contentPane.setOpaque(true); output = new JTextArea(5, 30); output.setEditable(false); scrollPane = new JScrollPane(output); contentPane.add(scrollPane, BorderLayout.CENTER); return contentPane; } private static void createAndShowGUI() { JFrame frame = new JFrame("MenuLookDemo"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); MenuLookDemo demo = new MenuLookDemo(); frame.setJMenuBar(demo.createMenuBar()); frame.setContentPane(demo.createContentPane()); frame.setSize(450, 260); frame.setVisible(true); } public static void main(String[] args) { javax.swing.SwingUtilities.invokeLater(new Runnable() { public void run() { createAndShowGUI(); } }); } }
这些方法以像素为主题讨论
