platform/util/src/com/intellij/ui/awt/RelativeRectangle.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.ui.awt;

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

public class RelativeRectangle {

  private RelativePoint myPoint;
  private Dimension myDimension;

  public RelativeRectangle() {
    this(new RelativePoint(new JLabel(), new Point()), new Dimension());
  }

  public RelativeRectangle(MouseEvent event, Dimension size) {
    this(event.getComponent(), new Rectangle(event.getPoint(), size));
  }

  public RelativeRectangle(JComponent component) {
    this(new RelativePoint(component.getParent(), component.getBounds().getLocation()), component.getBounds().getSize());
  }

  public RelativeRectangle(Component component, Rectangle rectangle) {
    this(new RelativePoint(component, rectangle.getLocation()), rectangle.getSize());
  }

  public RelativeRectangle(RelativePoint point, Dimension dimension) {
    myDimension = dimension;
    myPoint = point;
  }

  public Dimension getDimension() {
    return myDimension;
  }

  public RelativePoint getPoint() {
    return myPoint;
  }

  public RelativePoint getMaxPoint() {
    return new RelativePoint(myPoint.getComponent(),
        new Point(myPoint.getPoint().x + myDimension.width, myPoint.getPoint().y + myDimension.height));
  }

  public Rectangle getRectangleOn(Component target) {
    return new Rectangle(getPoint().getPoint(target), getDimension());
  }

  public Rectangle getScreenRectangle() {
    return new Rectangle(getPoint().getScreenPoint(), getDimension());
  }

  public static RelativeRectangle fromScreen(JComponent target, Rectangle screenRectangle) {
    Point relativePoint = screenRectangle.getLocation();
    SwingUtilities.convertPointFromScreen(relativePoint, target);
    return new RelativeRectangle(new RelativePoint(target, relativePoint), screenRectangle.getSize());
  }

  public Component getComponent() {
    return getPoint().getComponent();
  }

  public boolean contains(final RelativePoint relativePoint) {
    return getScreenRectangle().contains(relativePoint.getScreenPoint());
  }
}