Updated to new Johan version
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package Applicatie;
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import java.awt.Graphics;
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import java.awt.Graphics2D;
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import java.awt.Point;
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import java.awt.TexturePaint;
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import java.awt.event.MouseWheelEvent;
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import java.awt.event.MouseWheelListener;
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import java.awt.geom.AffineTransform;
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import java.awt.geom.Ellipse2D;
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import java.awt.geom.NoninvertibleTransformException;
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import java.awt.geom.Point2D;
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import java.awt.geom.Rectangle2D;
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import java.awt.image.BufferedImage;
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import java.io.File;
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import java.io.IOException;
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import java.util.ArrayList;
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import javax.imageio.ImageIO;
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import javax.swing.JPanel;
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import Listneners.Mouse;
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import Listneners.MouseMotion;
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import Objects.Podium;
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public class Panel extends JPanel {
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BufferedImage background;
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ArrayList<DrawObject> objects = new ArrayList<>();
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DrawObject dragObject = null;
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Point2D cameraPoint = new Point2D.Double(getWidth()/2,getHeight()/2);
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float cameraScale = 1;
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Point2D lastClickPosition;
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Point lastMousePosition;
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Panel()
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{
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try {
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background = ImageIO.read(new File("images/grass.jpg"));
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} catch (IOException e) {
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e.printStackTrace();
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}
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objects.add(new Podium(new Point2D.Double(100, 100)));
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objects.add(new Podium(new Point2D.Double(500, 100)));
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objects.add(new Podium(new Point2D.Double(300, 400)));
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addMouseListener(new Mouse());
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addMouseMotionListener(new MouseMotion());
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addMouseWheelListener(new MouseWheelListener() {
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public void mouseWheelMoved(MouseWheelEvent e) {
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Point2D clickPoint = getClickPoint(e.getPoint());
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for(DrawObject o : objects)
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{
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if(o.contains(clickPoint))
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{
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o.scale *= 1 + (e.getPreciseWheelRotation()/10.0);
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repaint();
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return;
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}
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}
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// cameraPoint
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cameraScale *= 1 - (e.getPreciseWheelRotation()/10.0);
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repaint();
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}
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});
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}
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public void paintComponent(Graphics g)
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{
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super.paintComponent(g);
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Graphics2D g2 = (Graphics2D)g;
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g2.setClip(new Rectangle2D.Double(0,0, 200, getHeight()));
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g2.fill(new Ellipse2D.Double(0,0,300,300));
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g2.setClip(new Rectangle2D.Double(200,0, getWidth()-200, getHeight()));
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AffineTransform oldTransform = g2.getTransform();
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g2.setTransform(getCamera());
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TexturePaint p = new TexturePaint(background, new Rectangle2D.Double(0, 0, 100, 100));
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g2.setPaint(p);
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g2.fill(new Rectangle2D.Double(0,0,1920,1080));
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for(DrawObject o : objects)
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o.draw(g2);
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g2.setClip(null);
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g2.setTransform(oldTransform);
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}
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private AffineTransform getCamera() {
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AffineTransform tx = new AffineTransform();
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tx.translate(-cameraPoint.getX() + getWidth()/2, -cameraPoint.getY() + getHeight()/2);
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tx.scale(cameraScale, cameraScale);
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return tx;
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}
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private Point2D getClickPoint(Point point) {
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try {
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return getCamera().inverseTransform(point, null);
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} catch (NoninvertibleTransformException e1) {
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e1.printStackTrace();
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}
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return null;
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}
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}
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