From cb071c4f2020b7733f5dd87fa75a7f2e447c5444 Mon Sep 17 00:00:00 2001
From: Camil Staps
Date: Wed, 29 Apr 2015 10:29:04 +0200
Subject: This seems to work

---
 .../src/com/camilstaps/mandelbrot/ZoomFrame.java   | 135 +++++++++++++++++++++
 1 file changed, 135 insertions(+)
 create mode 100644 Week11 Mandelbrot/src/com/camilstaps/mandelbrot/ZoomFrame.java

(limited to 'Week11 Mandelbrot/src/com/camilstaps/mandelbrot/ZoomFrame.java')

diff --git a/Week11 Mandelbrot/src/com/camilstaps/mandelbrot/ZoomFrame.java b/Week11 Mandelbrot/src/com/camilstaps/mandelbrot/ZoomFrame.java
new file mode 100644
index 0000000..1a48926
--- /dev/null
+++ b/Week11 Mandelbrot/src/com/camilstaps/mandelbrot/ZoomFrame.java	
@@ -0,0 +1,135 @@
+/*
+ * 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 MandelbrotController mandelbrotController;
+    private MandelbrotTextFields mandelbrotTextFields;
+    
+    private Graphics graphics;
+    
+    private int start_x, start_y, old_x, old_y;
+    
+    public ZoomFrame(String s) {
+        super(s);
+        addMouseListener(this);
+        addMouseMotionListener(this);
+    }
+    
+    public void setMandelbrotController(MandelbrotController mc) {
+        mandelbrotController = mc;
+    }
+    
+    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 (mandelbrotController == null || mandelbrotTextFields == null)
+                return;
+
+            mandelbrotTextFields.setCenterX(mandelbrotController.getX(me.getX()));
+            mandelbrotTextFields.setCenterY(mandelbrotController.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 = (mandelbrotController.getX(me.getX())
+                    - mandelbrotController.getX(start_x)) / 2
+                    + mandelbrotController.getX(start_x);
+            double center_y = (mandelbrotController.getY(me.getY())
+                    - mandelbrotController.getY(start_y)) / 2
+                    + mandelbrotController.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);
+        }
+            
+        mandelbrotController.redraw();
+    }
+
+    @Override
+    public void mouseEntered(MouseEvent me) {
+    }
+
+    @Override
+    public void mouseExited(MouseEvent me) {
+    }
+
+    @Override
+    public void mouseDragged(MouseEvent me) {
+        Graphics g = getSafeGraphics();
+        if (g != null) {
+            eraseZoombox();
+            g.drawRect(start_x, start_y, me.getX() - start_x, me.getX() - start_x);
+            old_y = old_x = me.getX();
+        }
+    }
+    
+    private Graphics getSafeGraphics() {
+        if (graphics == null) {
+            graphics = getGraphics();
+            graphics.setXORMode(Color.white);
+        }
+        return graphics;
+    }
+    
+    private void eraseZoombox() {
+        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(double repetitions);
+    }
+    
+}
-- 
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