fix grey bg

platform/lang-impl/src/com/intellij/ide/projectView/impl/ProjectViewTree.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2009 JetBrains s.r.o.
+ * Copyright 2000-2012 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -45,6 +45,7 @@ public abstract class ProjectViewTree extends DnDAwareTree {
     cellRenderer.setOpaque(false);
     cellRenderer.setIconOpaque(false);
     setCellRenderer(cellRenderer);
+    cellRenderer.setTransparentIconBackground(true);
     setOpaque(false);
   }
 
@@ -66,6 +67,8 @@ public abstract class ProjectViewTree extends DnDAwareTree {
 
   @Override
   protected void paintComponent(Graphics g) {
+    g.setColor(getBackground());
+    g.fillRect(0, 0, getWidth(), getHeight());
     if (isFileColorsEnabled()) {
       paintFileColorGutter(g);
     }
@@ -74,7 +77,7 @@ public abstract class ProjectViewTree extends DnDAwareTree {
   }
 
   @Override
-  protected boolean isFileColorsEnabled() {
+  public boolean isFileColorsEnabled() {
     return FileColorManagerImpl._isEnabled() && FileColorManagerImpl._isEnabledForProjectView();
   }
 

platform/platform-api/src/com/intellij/ui/ComponentWithFileColors.java

@@ -0,0 +1,23 @@
+/*
+ * Copyright 2000-2012 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.intellij.ui;
+
+/**
+ * @author Konstantin Bulenkov
+ */
+public interface ComponentWithFileColors {
+  boolean isFileColorsEnabled();
+}

platform/platform-api/src/com/intellij/ui/SimpleColoredComponent.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2009 JetBrains s.r.o.
+ * Copyright 2000-2012 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -636,6 +636,10 @@ public class SimpleColoredComponent extends JComponent implements Accessible {
     return myTransparentIconBackground;
   }
 
+  public void setTransparentIconBackground(boolean transparentIconBackground) {
+    myTransparentIconBackground = transparentIconBackground;
+  }
+
   private static int getTextBaseLine(FontMetrics metrics, final int height) {
     return (height - metrics.getHeight()) / 2 + metrics.getAscent();
   }

platform/platform-api/src/com/intellij/ui/treeStructure/Tree.java

@@ -21,10 +21,7 @@ import com.intellij.openapi.ui.Queryable;
 import com.intellij.openapi.util.Disposer;
 import com.intellij.openapi.util.SystemInfo;
 import com.intellij.openapi.wm.impl.content.GraphicsConfig;
-import com.intellij.ui.ComponentWithExpandableItems;
-import com.intellij.ui.ExpandableItemsHandler;
-import com.intellij.ui.ExpandableItemsHandlerFactory;
-import com.intellij.ui.LoadingNode;
+import com.intellij.ui.*;
 import com.intellij.util.ReflectionUtil;
 import com.intellij.util.ui.AsyncProcessIcon;
 import com.intellij.util.ui.ComponentWithEmptyText;
@@ -48,7 +45,8 @@ import java.lang.reflect.Method;
 import java.util.ArrayList;
 import java.util.Map;
 
-public class Tree extends JTree implements ComponentWithEmptyText, ComponentWithExpandableItems<Integer>, Autoscroll, Queryable {
+public class Tree extends JTree implements ComponentWithEmptyText, ComponentWithExpandableItems<Integer>, Autoscroll, Queryable,
+                                           ComponentWithFileColors {
   private StatusText myEmptyText;
   private ExpandableItemsHandler<Integer> myExpandableItemsHandler;
 
@@ -132,7 +130,7 @@ public class Tree extends JTree implements ComponentWithEmptyText, ComponentWith
     return true;
   }
 
-  protected boolean isFileColorsEnabled() {
+  public boolean isFileColorsEnabled() {
     return false;
   }