REPORT-66306 组件包下载面板无遮罩阴影

【问题原因】
swing中两个组件上下层叠时，重绘底层组件，会将其内容会知道上方，遮挡上层组件，
因此也需要手动重新绘制上层组件。

【改动思路】
主动调用下阴影层的重绘方法

designer-form/src/main/java/com/fr/design/mainframe/share/ui/online/OnlineDownloadPackagePane.java

@@ -72,22 +72,6 @@ public class OnlineDownloadPackagePane extends OnlineWidgetSelectPane {
         return false;
     }
 
-    protected JPanel createWidgetPane() {
-        return new JPanel() {
-            @Override
-            public void paint(Graphics g) {
-                super.paint(g);
-                Graphics2D g2d = (Graphics2D) g;
-                Composite oldComposite = g2d.getComposite();
-                AlphaComposite composite = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.65f);
-                g2d.setComposite(composite);
-                g2d.setColor(Color.DARK_GRAY);
-                g2d.fillRect(0, 0, getWidth(), getHeight());
-                g2d.setComposite(oldComposite);
-            }
-        };
-    }
-
     protected JPanel createContentPane(JPanel widgetPane) {
         JPanel panel = new JPanel() {
             @Override
@@ -114,7 +98,20 @@ public class OnlineDownloadPackagePane extends OnlineWidgetSelectPane {
                     parentPane.resetWidgetDetailPane(packageId, getSharableWidgetProviders());
                 }
             }
-        });
+        }) {
+            @Override
+            public void paint(Graphics g) {
+                Graphics2D g2d = (Graphics2D) g;
+                Composite oldComposite = g2d.getComposite();
+                AlphaComposite composite = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.65f);
+                g2d.setComposite(composite);
+                g2d.setColor(Color.DARK_GRAY);
+                g2d.fillRect(0, 0, getWidth(), getHeight());
+                g2d.setComposite(oldComposite);
+
+                super.paint(g);
+            }
+        };
         panel.add(downloadProgressPane);
         panel.add(widgetPane, BorderLayout.CENTER);
         return panel;
@@ -125,10 +122,16 @@ public class OnlineDownloadPackagePane extends OnlineWidgetSelectPane {
         final com.fr.design.extra.Process<Double> downloadProcess = aDouble -> {
             OnlineDownloadPackagePane.this.process = 0.8 * aDouble;
             downloadProgressPane.updateProgress(process);
+            if (downloadProgressPane != null) {
+                downloadProgressPane.repaint();
+            }
         };
         final com.fr.design.extra.Process<Double> installProcess = aDouble -> {
             OnlineDownloadPackagePane.this.process = 0.8 + 0.2 * aDouble;
             downloadProgressPane.updateProgress(process);
+            if (downloadProgressPane != null) {
+                downloadProgressPane.repaint();
+            }
         };
 
         downloadProcess.process(0.0D);
@@ -220,6 +223,9 @@ public class OnlineDownloadPackagePane extends OnlineWidgetSelectPane {
             File file = new File(filePath);
             installProcess.process(0.0D);
             downloadProgressPane.changeState();
+            if (downloadProgressPane != null) {
+                downloadProgressPane.repaint();
+            }
             InstallUtils.InstallResult result = null;
             try {
                 if (file.exists()) {