Quando tento colocar uma imagem no plano de fundo da minha a aplicação, a imagem simplesmente não aparece!
Codigo das classes:
Classe que inicializa a imagem:
package Classes;
import java.awt.Graphics2D;
import java.awt.Paint;
import java.awt.TexturePaint;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.JPanel;
/**
* A panel that contains a background image. The background image is
* automatically sized to fit in the panel.
*/
public class JImagePanel extends JPanel
{
private BufferedImage image = null;
private FillType fillType = FillType.RESIZE;
/**
* Creates a new panel with the given background image.
*
* @param img The background image.
*/
public JImagePanel(BufferedImage img)
{
setImage(img);
}
/**
* Creates a new panel with the given background image.
*
* @param img The background image.
* @throws IOException, if the image file is not found.
*/
public JImagePanel(File imgSrc) throws IOException
{
this(ImageIO.read(imgSrc));
}
/**
* Creates a new panel with the given background image.
*
* @param img The background image.
* @throws IOException, if the image file is not found.
*/
public JImagePanel(String fileName) throws IOException
{
this(new File(fileName));
}
/**
* Changes the image panel image.
*
* @param img The new image to set.
*/
public final void setImage(BufferedImage img)
{
if (img == null)
throw new NullPointerException("Buffered image cannot be null!");
this.image = img;
invalidate();
}
/**
* Changes the image panel image.
*
* @param img The new image to set.
* @throws IOException If the file does not exist or is invalid.
*/
public void setImage(File img) throws IOException
{
setImage(ImageIO.read(img));
}
/**
* Changes the image panel image.
*
* @param img The new image to set.
* @throws IOException If the file does not exist or is invalid.
*/
public void setImage(String fileName) throws IOException
{
setImage(new File(fileName));
}
/**
* Returns the image associated with this image panel.
*
* @return The associated image.
*/
public BufferedImage getImage()
{
return image;
}
/**
* Changes the fill type.
*
* @param fillType The new fill type
* @throws IllegalArgumentException If the fill type is null.
*/
public void setFillType(FillType fillType)
{
if (fillType == null)
throw new IllegalArgumentException("Invalid fill type!");
this.fillType = fillType;
invalidate();
}
public static enum FillType
{
/**
* Make the image size equal to the panel size, by resizing it.
*/
RESIZE
{
@Override
public void drawImage(JPanel panel, Graphics2D g2d,
BufferedImage image)
{
g2d.drawImage(image, 0, 0, panel.getWidth(), panel.getHeight(),
null);
}
},
/**
* Centers the image on the panel.
*/
CENTER
{
@Override
public void drawImage(JPanel panel, Graphics2D g2d,
BufferedImage image)
{
int left = (panel.getHeight() - image.getHeight()) / 2;
int top = (panel.getWidth() - image.getWidth()) / 2;
g2d.drawImage(image, top, left, null);
}
},
/**
* Makes several copies of the image in the panel, putting them side by
* side.
*/
SIDE_BY_SIDE
{
@Override
public void drawImage(JPanel panel, Graphics2D g2d,
BufferedImage image)
{
Paint p = new TexturePaint(image, new Rectangle2D.Float(0, 0,
image.getWidth(), image.getHeight()));
g2d.setPaint(p);
g2d.fillRect(0, 0, panel.getWidth(), panel.getHeight());
}
};
public abstract void drawImage(JPanel panel, Graphics2D g2d,
BufferedImage image);
}
}
trecho do codigo da interface!
try{
jPanel1 = new JImagePanel("D:\Pisom\JAVA - projetos\GRÁFICA\Projeto\Grafica\TelaFundo.jpg"); // <-- AKI
jLabel1 = new javax.swing.JLabel();
btnEstoque = new javax.swing.JButton();
lblEstoque = new javax.swing.JLabel();
// Iniciação dos outros componetes da frame!
}
catch(IOException e){
}