panel with image bg

platform/platform-api/src/com/intellij/ui/components/JBPanel.java

@@ -0,0 +1,74 @@
+/*
+ * 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.components;
+
+import org.jetbrains.annotations.Nullable;
+
+import javax.swing.*;
+import java.awt.*;
+
+/**
+ * @author Konstantin Bulenkov
+ */
+public class JBPanel extends JPanel {
+  @Nullable
+  private Icon myBackgroundImage;
+
+  public JBPanel(LayoutManager layout, boolean isDoubleBuffered) {
+    super(layout, isDoubleBuffered);
+  }
+
+  public JBPanel(LayoutManager layout) {
+    super(layout);
+  }
+
+  public JBPanel(boolean isDoubleBuffered) {
+    super(isDoubleBuffered);
+  }
+
+  public JBPanel() {
+    super();
+  }
+
+  @Nullable
+  public Icon getBackgroundImage() {
+    return myBackgroundImage;
+  }
+
+  public void setBackgroundImage(@Nullable Icon backgroundImage) {
+    myBackgroundImage = backgroundImage;
+  }
+
+  @Override
+  protected void paintComponent(Graphics g) {
+    super.paintComponent(g);
+
+    if (myBackgroundImage != null) {
+      final int w = myBackgroundImage.getIconWidth();
+      final int h = myBackgroundImage.getIconHeight();
+      int x = 0;
+      int y = 0;
+      while (x < getWidth()) {
+        while (y < getHeight()) {
+          myBackgroundImage.paintIcon(this, g, x, y);
+          y+=h;
+        }
+        y=0;
+        x+=w;
+      }
+    }
+  }
+}