java/idea-ui/src/com/intellij/openapi/roots/ui/configuration/artifacts/SimpleDnDAwareTree.java

/*
 * Copyright 2000-2009 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.openapi.roots.ui.configuration.artifacts;

import com.intellij.ide.dnd.DnDAware;
import com.intellij.ui.treeStructure.SimpleTree;
import com.intellij.util.ui.tree.TreeUtil;
import org.jetbrains.annotations.NotNull;

import javax.swing.*;
import java.awt.*;
import java.awt.event.MouseEvent;

/**
 * @author nik
 */
public class SimpleDnDAwareTree extends SimpleTree implements DnDAware {
  @Override
  public void processMouseEvent(MouseEvent e) {
    if (getToolTipText() == null && e.getID() == MouseEvent.MOUSE_ENTERED) return;
    super.processMouseEvent(e);
  }

  @Override
  public boolean isOverSelection(Point point) {
    return TreeUtil.isOverSelection(this, point);
  }

  @Override
  public void dropSelectionButUnderPoint(Point point) {
    TreeUtil.dropSelectionButUnderPoint(this, point);
  }

  @Override
  @NotNull
  public JComponent getComponent() {
    return this;
  }
}