【问题标题】：remove blue color from JTabbedPane从 JTabbedPane 中删除蓝色
【发布时间】：2011-03-04 00:40:59
【问题描述】：

这是我第一次使用 JTabbedPane。似乎默认外观在选项卡上和组件本身周围显示蓝色边框。如何禁用该效果？

【问题讨论】：

【解决方案1】：

嗯，通过将 LookAndFeel 设置为 SystemLookAndFeel（或任何其他外观）来消除这种“效果”的一种简单快捷的方法：

    UIManager.setLookAndFeel(
        UIManager.getSystemLookAndFeelClassName());

请阅读这篇文章，以便您了解有关该主题的更多信息：http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html

【讨论】：

【解决方案2】：

使用“UIManager”改变外观

            UIManager.getLookAndFeelDefaults().put("TabbedPane:TabbedPaneTab[Enabled].backgroundPainter", new BackgroundPainter(Color.white));
            UIManager.getLookAndFeelDefaults().put("TabbedPane:TabbedPaneTab[Enabled+MouseOver].backgroundPainter", new BackgroundPainter(Color.white));
            UIManager.getLookAndFeelDefaults().put("TabbedPane:TabbedPaneTab[Enabled+Pressed].backgroundPainter", new BackgroundPainter(Color.white));
            UIManager.getLookAndFeelDefaults().put("TabbedPane:TabbedPaneTab[Focused+MouseOver+Selected].backgroundPainter", new BackgroundPainter(Color.white));
            UIManager.getLookAndFeelDefaults().put("TabbedPane:TabbedPaneTab[Focused+Pressed+Selected].backgroundPainter", new BackgroundPainter(Color.white));
            UIManager.getLookAndFeelDefaults().put("TabbedPane:TabbedPaneTab[Focused+Selected].backgroundPainter", new BackgroundPainter(Color.GRAY));
            UIManager.getLookAndFeelDefaults().put("TabbedPane:TabbedPaneTab[MouseOver+Selected].backgroundPainter", new BackgroundPainter(Color.white));
            UIManager.getLookAndFeelDefaults().put("TabbedPane:TabbedPaneTab[Pressed+Selected].backgroundPainter", new BackgroundPainter(Color.white));
            UIManager.getLookAndFeelDefaults().put("TabbedPane:TabbedPaneTab[Selected].backgroundPainter", new BackgroundPainter(Color.white));

BackgroundPainter 类

public class BackgroundPainter implements Painter<JComponent> {

private Color color = null;

BackgroundPainter(Color c) {
    color = c;
}

@Override
public void paint(Graphics2D g, JComponent object, int width, int height) {
    if (color != null) {
        g.setColor(color);
        g.fillRect(0, 0, width - 1, height - 1);
    }
}

}

【讨论】：