属性标题栏点击变色效果

designer_base/src/com/fr/design/foldablepane/HeaderPane.java

@@ -22,10 +22,15 @@ public class HeaderPane extends JPanel {
     private int headHeight;
     private Color bgColor;
     private boolean isShow;
+    private boolean isPressed = false;
     private String title;
     private Image image;
     private int fontSize;
 
+    public void setPressed(boolean pressed) {
+        this.isPressed = pressed;
+    }
+
     public void setShow(boolean isShow) {
         this.isShow = isShow;
     }
@@ -60,7 +65,8 @@ public class HeaderPane extends JPanel {
     private BufferedImage createPanelImage() {
         BufferedImage panelImage = new BufferedImage(getWidth(), headHeight, BufferedImage.TYPE_INT_ARGB);
         Graphics2D g2d = panelImage.createGraphics();
-        g2d.setColor(UIConstants.COMPONENT_BACKGROUND_COLOR);
+
+        g2d.setColor(isPressed ? UIConstants.POPUP_TITLE_BACKGROUND : UIConstants.COMPONENT_BACKGROUND_COLOR);
         headWidth = this.getWidth();
         g2d.fillRect(0, 0, headWidth, headHeight);
         g2d.setFont(new Font("SimSun", 0, fontSize));

designer_base/src/com/fr/design/foldablepane/UIExpandablePane.java

@@ -58,7 +58,8 @@ public class UIExpandablePane extends JPanel {
     }
 
     class PanelAction extends MouseAdapter {
-        public void mousePressed(MouseEvent e) {
+        @Override
+        public void mouseClicked(MouseEvent e) {
             HeaderPane hp = (HeaderPane) e.getSource();
             if (contentPanel.isShowing()) {
                 contentPanel.setVisible(false);
@@ -67,9 +68,23 @@ public class UIExpandablePane extends JPanel {
                 contentPanel.setVisible(true);
                 hp.setShow(true);
             }
+            hp.setPressed(false);
             hp.getParent().validate();
             hp.getParent().repaint();
         }
+
+        public void mousePressed(MouseEvent e) {
+            HeaderPane hp = (HeaderPane) e.getSource();
+            hp.setPressed(true);
+            hp.getParent().repaint();
+        }
+
+        @Override
+        public void mouseExited(MouseEvent e) {
+            HeaderPane hp = (HeaderPane) e.getSource();
+            hp.setPressed(false);
+            hp.getParent().repaint();
+        }
     }