Aufgabe9_GrafikMVC/src/mvcgrafik/view/GrafikView.java

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 */

package mvcgrafik.view;

import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.geom.Rectangle2D;
import java.awt.geom.Line2D;
import java.awt.print.PageFormat;
import java.awt.print.Printable;
import java.awt.print.PrinterException;
import java.awt.print.PrinterJob;
import java.util.ArrayList;
import javax.print.attribute.HashPrintRequestAttributeSet;
import javax.print.attribute.standard.DialogTypeSelection;
import javax.swing.JComponent;
import javax.swing.JOptionPane;
import mvcgrafik.model.GrafikModel;


/**
 *
 * @author le
 */
public class GrafikView extends JComponent implements Printable
{
  private static Dimension EINS = new Dimension(1, 1); // Dimension ist eine Klasse die width udn height hält
  private Rectangle2D.Float pixel;
  private Line2D.Float line;
  private GrafikModel model;
  
  public GrafikView()
  {
    pixel = new Rectangle2D.Float();
  }

  public void setModel(GrafikModel model)
  {
    this.model = model;
  }
  
  

  public void drawPoint(Point p)
  {
      
    Graphics2D g2 = (Graphics2D)this.getGraphics(); // gefährlich!
    paintComponent(g2);
//    pixel.setFrame(p, EINS);
//    g2.draw(pixel);


    //Um die aktuelle Figur zu zeichnen
    int pathSize = model.getPunkte().size();
    
    for(int i=0; i < pathSize-1; i++)
    {
        Point from = model.getPunkte().get(i);
        Point to = model.getPunkte().get(i+1);
        
        line = new Line2D.Float(from.x,from.y,to.x,to.y) {};
        g2.draw(line);
    }
    
    //Um die fertigen Figuren zu zeichnen 
    model.getFiguren().forEach(figure->
    {
        ArrayList<Point> currentPath = new ArrayList<>(figure);
        int figurePath = currentPath.size();
    
        for(int i=0; i < figurePath-1; i++)
        {
            Point from = currentPath.get(i);
            Point to = model.getPunkte().get(i+1);

            line = new Line2D.Float(from.x,from.y,to.x,to.y) {};
            g2.draw(line);
        }
        
    });
  
    g2.dispose();  //SEEEEHHHHRRRR WICHTIG!!!!!!!
  }
  
  public void paintComponent(Graphics g)
  {
    if (model == null) return;
    super.paintComponent(g);
    Graphics2D g2 = (Graphics2D)g;
    
    
//    int pathSize = model.getPunkte().size();
//    
//    for(int i=0; i < pathSize-1; i++)
//    {
//        Point from = model.getPunkte().get(i);
//        Point to = model.getPunkte().get(i+1);
//        
//        line = new Line2D.Float(from.x,from.y,to.x,to.y) {};
//        g2.draw(line);
//    }
    
    model.getFiguren().forEach(figure->
    {
        ArrayList<Point> currentPath = new ArrayList<>(figure);
        int figurePath = currentPath.size();
    
    for(int i=0; i < figurePath-1; i++)
    {
        Point from = currentPath.get(i);
        Point to = model.getPunkte().get(i+1);
        
        line = new Line2D.Float(from.x,from.y,to.x,to.y) {};
        g2.draw(line);
    }
        
    });
    
    
    
//    model.getPunkte().forEach(p ->
//    {
//      pixel.setFrame(p, EINS);
//      g2.draw(pixel);
//    });

    
  }
  
//  public void drawPath(ArrayList<Point> path){
//    Graphics2D g2 = (Graphics2D)this.getGraphics();
//      
//    int pathSize = path.size();
//    
//    for(int i=0; i < pathSize-1; i++)
//    {
//        Point from = model.getPunkte().get(i);
//        Point to = model.getPunkte().get(i+1);
//        
//        line = new Line2D.Float(from.x,from.y,to.x,to.y) {};
//        g2.draw(line);
//    }
//    
//    g2.dispose();
//  
//  }
  
  public void doPrint()
  {
    HashPrintRequestAttributeSet printSet =
     new HashPrintRequestAttributeSet();
    printSet.add(DialogTypeSelection.NATIVE);
    PrinterJob pj = PrinterJob.getPrinterJob();
    pj.setPrintable(this);
    //Dialog
    if (pj.printDialog(printSet))
    {
      try
      {
        pj.print(printSet);
      }
      catch (Exception ex)
      {
        JOptionPane.showMessageDialog(this, ex.toString());
      }
    }
  }

  @Override
  public int print(Graphics gp, PageFormat pf, int pageIndex) throws PrinterException
  {
    Graphics2D g2p = (Graphics2D)gp;
    if (pageIndex == 0)
    {
      g2p.translate(pf.getImageableX(), pf.getImageableY());
      g2p.scale(pf.getImageableWidth() / this.getWidth(),
                pf.getImageableHeight() / this.getHeight());
      super.print(g2p);
      return Printable.PAGE_EXISTS;
    }
    else
    {
      return Printable.NO_SUCH_PAGE; // wichtig sonst Papiervernichtung
    }
  }
}