我有一个JEditorPane,在JScrollPane中(两者都是透明的)。这些都在具有半透明背景的JPanel中。当我选择JEditorPane内的文本时,我得到了这个奇怪的错误:
所以其他元素不在同一个JPanel中,“鬼”围绕选择,更多见于此截图:
Java GUI对我来说是第一次,我只做了没有gui的服务器端应用程序。
小组代码:
@SuppressWarnings("serial")
public class NewsPanel extends JPanel {
private JEditorPane newsArea;
public NewsPanel() {
setLayout(new BorderLayout());
setBackground(new Color(226, 0, 0, 179));
loadContent();
setSize(500,400);
}
private void loadContent() {
newsArea = new JEditorPane();
newsArea.setEditable(false);
newsArea.setBorder(BorderFactory.createEmptyBorder());
newsArea.setSelectionColor(Color.GRAY);
newsArea.setOpaque(false);
newsArea.setBackground(new Color(0, 0, 0, 0));
HTMLEditorKit kit = new HTMLEditorKit();
StyleSheet styleSheet = kit.getStyleSheet();
styleSheet.addRule("A {color:#0088CC}");
styleSheet.addRule("#newsHeader {font-weight:bold;font-size:14px;color:#339933;}");
styleSheet.addRule("#newsBody {font-size:10px;padding-left:20px;}");
newsArea.setEditorKit(kit);
JScrollPane scrollPane = new JScrollPane(newsArea, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,
JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
add(scrollPane, BorderLayout.CENTER);
scrollPane.getViewport().setBackground(new Color(0, 0, 0, 0));
scrollPane.getViewport().setOpaque(false);
scrollPane.setViewportBorder(BorderFactory.createEmptyBorder());
scrollPane.setOpaque(false);
scrollPane.setBackground(new Color(0, 0, 0, 0));
scrollPane.setBorder(BorderFactory.createEmptyBorder());
}
@Override
public void paint(Graphics g) {
super.paint(g);
}
@Override
public boolean isOptimizedDrawingEnabled() {
return false;
}
public void reload() {
removeAll();
loadContent();
validate();
repaint();
}
}
任何想法如何解决?我确信这很简单,但就像我说的,我是UI的新手
答案 0 :(得分:0)
这些是在具有半透明背景的JPanel中。当我选择JEditorPane中的文本时,我得到了这个奇怪的错误:
查看Backgrounds With Transparency可能出现的问题以及几个解决方案。