JTabbedPane:选项卡左侧的图标

Question

你好,我正在使用灵气的外观,并有一个带有图标和文字的tabbedpane.现在图标出现在文本的右侧,而我希望它在左侧.

我还想在图标和文字之间添加一些间距.

谢谢!

Answer 1

您需要自己设置标签组件; 它控制标签标题的呈现方式.

// Create tabbed pane and add tabs.
JTabbedPane tabbedPane = ...

// Create bespoke component for rendering the tab.
JLabel lbl = new JLabel("Hello, World");
Icon icon = new ImageIcon(getClass().getResource("/foo/bar/hello.jpg"));
lbl.setIcon(icon);

// Add some spacing between text and icon, and position text to the RHS.
lbl.setIconTextGap(5);
lbl.setHorizontalTextPosition(SwingConstants.RIGHT);

// Assign bespoke tab component for first tab.
tabbedPane.setTabComponentAt(0, lbl);

显然你可以在实用程序方法中封装它:

private void addTab(JTabbedPane tabbedPane, Component tab, String title, Icon icon) {
  tabbedPane.add(tab);

  JLabel lbl = ... // Create bespoke label for rendering tab title.

  tabbedPane.setTabComponentAt(tabbedPane.getTabCount() - 1, lbl);
}