/*
 * The MIT License (MIT)
 * 
 * Copyright (c) 2015 Camil Staps <info@camilstaps.nl>
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package com.camilstaps.mandelbrot;

import java.awt.Color;
import java.awt.Graphics;
import javax.swing.JFrame;

/**
 * A frame in which zooming is possible
 * @author Camil Staps, s4498062
 */
public class ZoomFrame extends JFrame {
    
    private Graphics graphics;
    
    private final DrawView drawView;
    
    public ZoomFrame(String s, DrawView drawView) {
        super(s);
        
        this.drawView = drawView;
        
        setSize(drawView.getWidth(), drawView.getHeight());
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setResizable(false);
        setLocationRelativeTo(null);
        setVisible(true);
        
        add(drawView);
    }
    
    /**
     * Semi-singleton construction for graphics
     * @return 
     */
    private Graphics getSafeGraphics() {
        if (graphics == null) {
            graphics = getGraphics();
            graphics.setXORMode(Color.white);
        }
        
        return graphics;
    }
    
}