plugins/ui-designer-core/src/com/intellij/designer/designSurface/ComponentDecorator.java

/*
 * 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.designer.designSurface;

import com.intellij.designer.designSurface.tools.InputTool;
import com.intellij.designer.model.RadComponent;
import org.jetbrains.annotations.Nullable;

import java.awt.*;

/**
 * @author Alexander Lobas
 */
public abstract class ComponentDecorator {
  @Nullable
  public abstract InputTool findTargetTool(DecorationLayer layer, RadComponent component, int x, int y);

  public void decorate(DecorationLayer layer, Graphics2D host, RadComponent component) {
    Graphics2D child = (Graphics2D)host.create();
    try {
      paint(layer, child, component);
    }
    finally {
      child.dispose();
    }
  }

  protected abstract void paint(DecorationLayer layer, Graphics2D g, RadComponent component);
}