franta-hg@15: package cz.frantovo.obrazkovyApplet;
franta-hg@15: 
franta-hg@16: import java.awt.BorderLayout;
franta-hg@15: import java.awt.Color;
franta-hg@15: import java.awt.Graphics;
franta-hg@15: import java.awt.event.MouseEvent;
franta-hg@15: import java.awt.event.MouseListener;
franta-hg@15: import java.awt.event.MouseMotionListener;
franta-hg@15: import java.io.BufferedReader;
franta-hg@15: import java.io.InputStreamReader;
franta-hg@15: import java.io.OutputStream;
franta-hg@15: import java.net.URL;
franta-hg@15: import java.net.URLConnection;
franta-hg@15: import java.util.logging.Level;
franta-hg@15: import java.util.logging.Logger;
franta-hg@15: import javax.imageio.ImageIO;
franta-hg@15: import javax.swing.UIManager;
franta-hg@15: import javax.swing.UIManager.LookAndFeelInfo;
franta-hg@15: 
franta-hg@16: /**
franta-hg@16:  * @author František Kučera, podnik.frantovo.cz
franta-hg@16:  */
franta-hg@15: public class ObrazkovyApplet extends javax.swing.JApplet implements MouseMotionListener, MouseListener {
franta-hg@15: 
franta-hg@15: 	private static final Logger log = Logger.getLogger(ObrazkovyApplet.class.getSimpleName());
franta-hg@15: 	private static final String CILOVE_URL = "http://vm.frantovo.cz/temp/applet/";
franta-hg@15: 	private int stareX;
franta-hg@15: 	private int stareY;
franta-hg@15: 	private boolean kresli;
franta-hg@16: 	private Platno platno;
franta-hg@15: 
franta-hg@15: 	private void odesliData() {
franta-hg@15: 		try {
franta-hg@15: 			URL url = new URL(CILOVE_URL);
franta-hg@15: 			URLConnection spojeni = url.openConnection();
franta-hg@15: 			spojeni.setDoOutput(true);
franta-hg@15: 			spojeni.connect();
franta-hg@15: 			OutputStream os = spojeni.getOutputStream();
franta-hg@16: 			ImageIO.write(platno.getObrazek(), "png", os);
franta-hg@15: 			os.flush();
franta-hg@15: 			os.close();
franta-hg@15: 
franta-hg@15: 			BufferedReader r = new BufferedReader(new InputStreamReader(spojeni.getInputStream()));
franta-hg@15: 			vypisStav(r.readLine());
franta-hg@15: 			r.close();
franta-hg@15: 
franta-hg@15: 			smazGrafiku();
franta-hg@15: 		} catch (Exception e) {
franta-hg@15: 			vypisStav("odeslání selhalo: " + e.getMessage());
franta-hg@15: 			log.log(Level.SEVERE, "Nepodařilo se odeslat data", e);
franta-hg@15: 		}
franta-hg@15: 	}
franta-hg@15: 
franta-hg@15: 	private void smazGrafiku() {
franta-hg@16: 		platno.getObrazek().getGraphics().fillRect(0, 0, panel.getWidth(), panel.getHeight());
franta-hg@16: 		platno.repaint();
franta-hg@15: 	}
franta-hg@15: 
franta-hg@15: 	public void mouseDragged(MouseEvent e) {
franta-hg@15: 		int x = e.getX();
franta-hg@15: 		int y = e.getY();
franta-hg@15: 
franta-hg@15: 		if (kresli) {
franta-hg@15: 			vypisStav("kreslím: " + stareX + "x" + stareY + "→" + x + "x" + y);
franta-hg@16: 
franta-hg@16: 			Graphics g = platno.getObrazek().getGraphics();
franta-hg@15: 			g.setColor(Color.BLUE);
franta-hg@15: 			g.drawLine(stareX, stareY, x, y);
franta-hg@15: 
franta-hg@16: 			platno.repaint();
franta-hg@15: 		}
franta-hg@15: 
franta-hg@15: 		stareX = x;
franta-hg@15: 		stareY = y;
franta-hg@15: 	}
franta-hg@15: 
franta-hg@15: 	public void mousePressed(MouseEvent e) {
franta-hg@15: 		stareX = e.getX();
franta-hg@15: 		stareY = e.getY();
franta-hg@15: 		kresli = true;
franta-hg@15: 	}
franta-hg@15: 
franta-hg@15: 	public void mouseReleased(MouseEvent e) {
franta-hg@15: 		kresli = false;
franta-hg@15: 	}
franta-hg@15: 
franta-hg@15: 	public void mouseMoved(MouseEvent e) {
franta-hg@15: 	}
franta-hg@15: 
franta-hg@15: 	public void mouseClicked(MouseEvent e) {
franta-hg@15: 	}
franta-hg@15: 
franta-hg@15: 	public void mouseEntered(MouseEvent e) {
franta-hg@15: 	}
franta-hg@15: 
franta-hg@15: 	public void mouseExited(MouseEvent e) {
franta-hg@15: 		kresli = false;
franta-hg@15: 	}
franta-hg@15: 
franta-hg@15: 	@Override
franta-hg@15: 	public void init() {
franta-hg@15: 
franta-hg@15: 		/** Lepší vzhled – LaF */
franta-hg@15: 		try {
franta-hg@15: 			for (LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) {
franta-hg@15: 				if ("Nimbus".equals(info.getName())) {
franta-hg@15: 					UIManager.setLookAndFeel(info.getClassName());
franta-hg@15: 					break;
franta-hg@15: 				}
franta-hg@15: 			}
franta-hg@15: 		} catch (Exception e) {
franta-hg@15: 		}
franta-hg@15: 
franta-hg@15: 		/** Spuštění appletu */
franta-hg@15: 		try {
franta-hg@15: 			java.awt.EventQueue.invokeAndWait(new Runnable() {
franta-hg@15: 
franta-hg@15: 				public void run() {
franta-hg@16: 					platno = new Platno();
franta-hg@16: 					platno.repaint();
franta-hg@15: 					initComponents();
franta-hg@16: 					panel.setLayout(new BorderLayout());
franta-hg@16: 					panel.add(platno, BorderLayout.CENTER);
franta-hg@15: 				}
franta-hg@15: 			});
franta-hg@15: 		} catch (Exception e) {
franta-hg@15: 			log.log(Level.SEVERE, "Chyba appletu:", e);
franta-hg@15: 		}
franta-hg@15: 
franta-hg@15: 		/** Nastavení plátna */
franta-hg@16: 		panel.addMouseMotionListener(ObrazkovyApplet.this);
franta-hg@16: 		panel.addMouseListener(ObrazkovyApplet.this);
franta-hg@15: 		log.log(Level.INFO, "plátno nastaveno");
franta-hg@15: 	}
franta-hg@15: 
franta-hg@15: 	@SuppressWarnings("unchecked")
franta-hg@15:     // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
franta-hg@15:     private void initComponents() {
franta-hg@15: 
franta-hg@15:         odeslat = new javax.swing.JButton();
franta-hg@15:         stavovyRadek = new javax.swing.JLabel();
franta-hg@16:         panel = new javax.swing.JPanel();
franta-hg@15: 
franta-hg@15:         odeslat.setText("Odeslat na server");
franta-hg@15:         odeslat.addActionListener(new java.awt.event.ActionListener() {
franta-hg@15:             public void actionPerformed(java.awt.event.ActionEvent evt) {
franta-hg@15:                 odeslatActionPerformed(evt);
franta-hg@15:             }
franta-hg@15:         });
franta-hg@15: 
franta-hg@15:         stavovyRadek.setText(" ");
franta-hg@15: 
franta-hg@16:         javax.swing.GroupLayout panelLayout = new javax.swing.GroupLayout(panel);
franta-hg@16:         panel.setLayout(panelLayout);
franta-hg@16:         panelLayout.setHorizontalGroup(
franta-hg@16:             panelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
franta-hg@15:             .addGap(0, 388, Short.MAX_VALUE)
franta-hg@15:         );
franta-hg@16:         panelLayout.setVerticalGroup(
franta-hg@16:             panelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
franta-hg@15:             .addGap(0, 255, Short.MAX_VALUE)
franta-hg@15:         );
franta-hg@15: 
franta-hg@15:         javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
franta-hg@15:         getContentPane().setLayout(layout);
franta-hg@15:         layout.setHorizontalGroup(
franta-hg@15:             layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
franta-hg@15:             .addGroup(layout.createSequentialGroup()
franta-hg@15:                 .addContainerGap()
franta-hg@15:                 .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
franta-hg@16:                     .addComponent(panel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
franta-hg@15:                     .addGroup(layout.createSequentialGroup()
franta-hg@15:                         .addComponent(stavovyRadek, javax.swing.GroupLayout.DEFAULT_SIZE, 243, Short.MAX_VALUE)
franta-hg@15:                         .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
franta-hg@15:                         .addComponent(odeslat)))
franta-hg@15:                 .addContainerGap())
franta-hg@15:         );
franta-hg@15:         layout.setVerticalGroup(
franta-hg@15:             layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
franta-hg@15:             .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
franta-hg@15:                 .addContainerGap()
franta-hg@16:                 .addComponent(panel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
franta-hg@15:                 .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
franta-hg@15:                 .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
franta-hg@15:                     .addComponent(odeslat)
franta-hg@15:                     .addComponent(stavovyRadek))
franta-hg@15:                 .addContainerGap())
franta-hg@15:         );
franta-hg@15:     }// </editor-fold>//GEN-END:initComponents
franta-hg@15: 
franta-hg@15: 	private void odeslatActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_odeslatActionPerformed
franta-hg@15: 		odesliData();
franta-hg@15: 	}//GEN-LAST:event_odeslatActionPerformed
franta-hg@15: 
franta-hg@15: 	private void vypisStav(String text) {
franta-hg@15: 		stavovyRadek.setText(text);
franta-hg@15: 	}
franta-hg@15:     // Variables declaration - do not modify//GEN-BEGIN:variables
franta-hg@15:     private javax.swing.JButton odeslat;
franta-hg@16:     private javax.swing.JPanel panel;
franta-hg@15:     private javax.swing.JLabel stavovyRadek;
franta-hg@15:     // End of variables declaration//GEN-END:variables
franta-hg@15: }