/*
PseudoCode Interpreted Language (PCIL):  Part of the algoviz@vt collection of algorithm visualizations.
Copyright (C) 2008  Brandon Malone, Frank Hadlock

This file is part of the PseudoCode Interpreted Language.

PseudoCode Interpreted Language is free software: you can redistribute
it and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of the License,
or (at your option) any later version.

PseudoCode Interpreted Language is distributed in the hope that it will
be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
Public License for more details.

You should have received a copy of the GNU General Public License along with
PseudoCode Interpreted Language.  If not, see
<http://www.gnu.org/licenses/>.
*/

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package dynamicmvc;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import javax.swing.BorderFactory;
import javax.swing.JPanel;

/**
 *
 * @author bm542
 */
public class ResizablePanel extends JPanel {
    public boolean mouseClicked;
    public int lastX;
    public int lastY;
    
    PrimitivePointer pp;
    
    public ResizablePanel(PrimitivePointer pp) {
        super();
        mouseClicked = false;
        lastX = -1;
        lastY = -1;
	
	this.pp = pp;
        
        addMouseListener(new java.awt.event.MouseAdapter() {
            public void mousePressed(java.awt.event.MouseEvent evt) {
                mousePressedHandler(evt);
            }
            public void mouseReleased(java.awt.event.MouseEvent evt) {
                mouseReleasedHandler(evt);
            }
        });
        addMouseMotionListener(new java.awt.event.MouseMotionAdapter() {
            public void mouseDragged(java.awt.event.MouseEvent evt) {
                mouseDraggedHandler(evt);
            }
        });
    }
    
    public void paint(Graphics g) {
        super.paint(g);
        
        // draw a white square in the bottom 10 x 10
        int width = getWidth();
        int height = getHeight();
        
        g.setColor(Color.white);
        g.fillRect(width - 10, height - 10, 10, 10);
    }
    
    public void mousePressedHandler(java.awt.event.MouseEvent evt) {
        int width = this.getWidth();
        int height = this.getHeight();

        if (width - evt.getX() < 10 && height - evt.getY() < 10) {
            mouseClicked = true;
            lastX = -1;
            lastY = -1;
        }    
    }
    
    public void mouseReleasedHandler(java.awt.event.MouseEvent evt) {
        mouseClicked = false;
	View.updateView();
    }
    
    public void mouseDraggedHandler(java.awt.event.MouseEvent evt) {
        if (mouseClicked) {
            if (lastX != -1) {
                int thisX = evt.getX();
                int thisY = evt.getY();

                int deltaWidth = thisX - lastX;
                int deltaHeight = thisY - lastY;

                int width = this.getWidth();
                int height = this.getHeight();

                width += deltaWidth;
                height += deltaHeight;
		
		PrimitivePointer pWidth = PrimitiveFactory.create(PrimitiveInteger.pseudocodeTypeName(), "__width");
		PrimitivePointer pHeight = PrimitiveFactory.create(PrimitiveInteger.pseudocodeTypeName(), "__height");
		
		PrimitiveInteger pw = (PrimitiveInteger)pWidth.dereference();
		PrimitiveInteger ph = (PrimitiveInteger)pHeight.dereference();
		
		pw.setValue(width);
		ph.setValue(height);
		
		pp.set("__width", pWidth);
		pp.set("__height", pHeight);

                setSize(new Dimension(width, height));

                this.invalidate();
            }

            lastX = evt.getX();
            lastY = evt.getY();
        }
    }
}