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/*
* Copyright (c) 2015 Camil Staps
*/
package com.camilstaps.mandelbrot;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.event.InputEvent;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import javax.swing.JFrame;
/**
*
* @author camilstaps
*/
public class ZoomFrame extends JFrame implements MouseListener, MouseMotionListener {
private MandelbrotView mandelbrotView;
private MandelbrotTextFields mandelbrotTextFields;
private Graphics graphics;
private int start_x, start_y, old_x, old_y;
private boolean dragging = false;
public ZoomFrame(String s) {
super(s);
addMouseListener(this);
addMouseMotionListener(this);
}
public void setMandelbrotView(MandelbrotView mv) {
mandelbrotView = mv;
}
public void setMandelbrotTextFields(MandelbrotTextFields mtf) {
mandelbrotTextFields = mtf;
}
@Override
public void mouseClicked(MouseEvent me) {
}
@Override
public void mousePressed(MouseEvent me) {
old_x = start_x = me.getX();
old_y = start_y = me.getY();
}
@Override
public void mouseReleased(MouseEvent me) {
if (me.getX() == start_x && me.getY() == start_y) {
if (mandelbrotView == null || mandelbrotTextFields == null)
return;
mandelbrotTextFields.setCenterX(mandelbrotView.getX(me.getX()));
mandelbrotTextFields.setCenterY(mandelbrotView.getY(me.getY()));
if ((me.getModifiers() & InputEvent.SHIFT_MASK) != 0) {
mandelbrotTextFields.setScale(mandelbrotTextFields.getScale() / 2);
} else {
mandelbrotTextFields.setScale(mandelbrotTextFields.getScale() * 2);
}
} else {
double center_x = (mandelbrotView.getX(me.getX())
- mandelbrotView.getX(start_x)) / 2
+ mandelbrotView.getX(start_x);
double center_y = (mandelbrotView.getY(me.getY())
- mandelbrotView.getY(start_y)) / 2
+ mandelbrotView.getY(start_y);
mandelbrotTextFields.setCenterX(center_x);
mandelbrotTextFields.setCenterY(center_y);
double scale = mandelbrotTextFields.getScale()
/ (me.getX() - start_x)
* getWidth();
System.err.println(mandelbrotTextFields.getScale());
System.err.println(me.getX() - start_x);
System.err.println(getWidth());
mandelbrotTextFields.setScale(scale);
}
mandelbrotView.redraw();
dragging = false;
}
@Override
public void mouseEntered(MouseEvent me) {
}
@Override
public void mouseExited(MouseEvent me) {
}
@Override
public void mouseDragged(MouseEvent me) {
Graphics g = getSafeGraphics();
if (g != null) {
if (dragging) {
eraseZoombox();
}
g.drawRect(start_x, start_y, me.getX() - start_x, me.getX() - start_x);
old_y = old_x = me.getX();
dragging = true;
}
}
private Graphics getSafeGraphics() {
if (graphics == null) {
graphics = getGraphics();
graphics.setXORMode(Color.white);
}
return graphics;
}
private void eraseZoombox() {
if (start_x < 0 || start_y < 0 || old_x < 0 || old_y < 0)
return;
Graphics g = getSafeGraphics();
if (g != null)
g.drawRect(start_x, start_y, old_x - start_x, old_y - start_x);
}
@Override
public void mouseMoved(MouseEvent me) {
//System.err.println(me.toString());
}
public interface MandelbrotTextFields {
public void setCenterX(double x);
public void setCenterY(double y);
public double getScale();
public void setScale(double scale);
public void setRepetitions(int repetitions);
}
}
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