Pessoal,
Meu código pega uma imagem e coloca na tela. Depois disso tenho que capturar o ponto do pixel da imagem quando clico com o mouse mas quando clico na borda na ultima linha ou coluna da imagem dá o seguinte erro:
Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: Coordinate out of bounds!
at sun.awt.image.ByteInterleavedRaster.getDataElements(Unknown Source)
at java.awt.image.BufferedImage.getRGB(Unknown Source)
at TrabalhaImagem$3.mousePressed(TrabalhaImagem.java:146)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$200(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
Clicando em qualquer outro ponto funciona normalmente.
o código que estou usando é esse:
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.BorderFactory;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.SwingConstants;
public class TrabalhaImagem extends JFrame {
private JPanel painelNorte = new JPanel();
private JPanel Central = new JPanel();
private JPanel painelImagem = new JPanel();
private Container container;
private FlowLayout layout;
private JButton botaoCarregar;
private JButton botaoMatriz;
private JButton botaoIniciar;
private BufferedImage imagemOriginal = null;
private BufferedImage imagemResultado = null;
private int larguraImagem;
private int alturaImagem;
private int imagem[][];
private int limiar;
private int pixelLinha;
private final int BORDER = 10;
public int getPixelLinha() {
return pixelLinha;
}
public TrabalhaImagem() throws IOException {
super("Inicio");
container = getContentPane();
setLayout(layout);
botaoCarregar = new JButton("Buscar Imagem Local");
painelImagem = new JPanel();
botaoMatriz = new JButton("Gerar Matriz");
botaoIniciar = new JButton("Iniciar Varredura");
painelNorte.setLayout(new GridLayout(2, 5));
painelNorte.setBackground(Color.white);
painelNorte.add(botaoCarregar);
painelNorte.add(botaoMatriz);
painelNorte.add(botaoIniciar);
Central.add(painelImagem);
Central.setBackground(Color.gray);
this.setLayout(new BorderLayout());
this.add("North", painelNorte);
this.add("Center", Central);
botaoCarregar.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
BufferedImage image = null;
JFileChooser arquivo = new JFileChooser();
arquivo.setDialogTitle("Escolha uma imagem");
arquivo.setFileFilter(new javax.swing.filechooser.FileFilter() {
public boolean accept(File f) {
return f.getName().toLowerCase().endsWith(".jpg")
|| f.isDirectory()
|| f.getName().toLowerCase().endsWith(".png")
|| f.getName().toLowerCase().endsWith(".gif")
|| f.getName().toLowerCase().endsWith(".jpeg");
}
public String getDescription() {
return "Arquivos de imagem (.jpg, .png, .gif, .jpeg)";
}
});
int res = arquivo.showOpenDialog(null);
if (res == JFileChooser.APPROVE_OPTION) {
File arquivos = arquivo.getSelectedFile();
{
try {
image = ImageIO.read(arquivos);
imagemOriginal = image;
} catch (IOException ex) {
JOptionPane.showMessageDialog(null,
"Erro ao processar imagem.");
}
}
ImageIcon im = new ImageIcon(image);
JLabel label1 = new JLabel();
label1.setPreferredSize(new Dimension(image.getWidth()
+ BORDER, image.getHeight() + BORDER));
label1.setVerticalAlignment(SwingConstants.CENTER);
label1.setHorizontalAlignment(SwingConstants.CENTER);
label1.setIcon(im);
painelImagem.setBorder(BorderFactory.createEmptyBorder());
painelImagem.setPreferredSize(new Dimension(image
.getWidth() + 2 * BORDER, image.getHeight() + 2
* BORDER));
painelImagem.add(label1, null);
painelImagem.setVisible(true);
} else
JOptionPane.showMessageDialog(null,
"Voce nao selecionou nenhum arquivo.");
}
});
});
// captura a posição da tela
painelImagem.addMouseListener(new MouseListener() {
public void mousePressed(MouseEvent e) {
int c = imagemOriginal.getRGB(e.getX(), e.getY());
int red = (c & 0x00ff0000) >> 16;
int green = (c & 0x0000ff00) >> 8;
int blue = c & 0x000000ff;
System.out.println("Cores: Vermelho = " + red + ", Verde = "
+ green + ", Azul = " + blue);
System.out.println("RGB da imagem: " + c);
System.out.println("Posição marcada: " + red + " " + e.getX()
+ " / " + e.getY());
System.out.println("Largura da imagem: "
+ imagemOriginal.getWidth());
System.out.println("Altura da imagem: "
+ imagemOriginal.getHeight());
}
public void mouseClicked(MouseEvent e) {
}
public void mouseEntered(MouseEvent e) {
}
public void mouseExited(MouseEvent e) {
}
public void mouseReleased(MouseEvent e) {
}
});
}
}
