revert: no background progress is visible

platform/platform-api/src/com/intellij/util/ui/AnimatedIcon.java

@@ -150,16 +150,33 @@ public abstract class AnimatedIcon extends JComponent implements Disposable {
   protected void paintComponent(Graphics g) {
     if (myPaintingBgNow) return;
 
-    if (isOpaque()) {
-      final Container parent = getParent();
-      JComponent opaque = null;
-      if (parent instanceof JComponent) {
-        opaque = (JComponent)UIUtil.findNearestOpaque((JComponent)parent);
+    if ((myAnimator.isRunning() || myPaintPassive || (myLastPaintWasRunning && !myAnimator.isRunning()))) {
+      Rectangle b = getBounds();
+
+      if (!isOpaque()) {
+        try {
+          myPaintingBgNow = true;
+          Container p = getParent();
+          if (p instanceof JComponent) {
+            JComponent parentComponent = (JComponent)p;
+            RepaintManager.currentManager(p).addDirtyRegion(parentComponent, b.x, b.y, b.width, b.height);
+          }
+        }
+        finally {
+          myPaintingBgNow = false;
+        }
+      } else {
+        Container parent = getParent();
+        if (parent instanceof JComponent) {
+          final Component opaque = UIUtil.findNearestOpaque((JComponent)parent);
+          if (opaque != null) {
+            g.setColor(opaque.getBackground());
+            g.fillRect(b.x, b.y, b.width, b.height);
+          }
+        }
       }
-      Color bg = opaque != null ? opaque.getBackground() : UIManager.getColor("Panel.background");
-      g.setColor(bg);
-      g.fillRect(0, 0, getWidth(), getHeight());
-    } 
+
+    }
 
     Icon icon;
 
@@ -190,9 +207,4 @@ public abstract class AnimatedIcon extends JComponent implements Disposable {
   public boolean isAnimated() {
     return true;
   }
-
-  @Override
-  public String toString() {
-    return myName + " isRunning=" + myRunning + " isOpaque=" + isOpaque() + " paintPassive=" + myPaintPassive;
-  }
 }