I am trying to retrieve a Blob(Image) file from database and want to show it in a JLabel . But it doesnt show up in JLabel . Why ? one More query if there any to know if my Byte array Contains valid data ? Here is my code
import java.awt.EventQueue;
import java.awt.Image;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.ImageObserver;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.border.EmptyBorder;
public class Show extends JFrame {
private JPanel contentPane;
private JTextField id;
//BufferedImage bufImg = null;
JLabel img=null;
// InputStream in=null;
ImageIcon imgs=null;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
Show frame = new Show();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the frame.
*/
Connection con=null;
public Show() {
con=dB.Connect();
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 664, 499);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
id = new JTextField();
id.setBounds(158, 23, 86, 20);
contentPane.add(id);
id.setColumns(10);
JButton show = new JButton("New button");
show.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
try{
String q="select * from showme where id='"+id.getText()+"'";
PreparedStatement ps=con.prepareStatement(q);
ResultSet rs=ps.executeQuery();
InputStream in = rs.getBinaryStream("image");
ByteArrayOutputStream out = new ByteArrayOutputStream();
while(rs.next()){
byte[] buffer = new byte[1024];
int bytesRead = in.read(buffer);
while (bytesRead > -1)
{
out.write(buffer);
bytesRead = in.read(buffer);
}
byte[] picture = out.toByteArray();
ImageIcon mage = new ImageIcon(picture);
Image im = mage.getImage();
ImageIcon newImage = new ImageIcon(im);
//Image myImg = im.getScaledInstance(img.getWidth(),img.getWidth(),ImageObserver.WIDTH);
//ImageIcon newImage = new ImageIcon(myImg);
img.setIcon(newImage);
JOptionPane.showMessageDialog(null, "Done");
/*//I Also used this method . Still No Result in Jlabel
while(rs.next()){
byte[] imgss = rs.getBytes("image");
//Resize The ImageIcon
ImageIcon mage = new ImageIcon(imgss);
Image im = mage.getImage();
//Image myImg = im.getScaledInstance(imgss.length, imgss.length,imgss.length);
//ImageIcon newImage = new ImageIcon(im);
img.setIcon(new ImageIcon(im));
JOptionPane.showMessageDialog(null, "Done");
}
*/
in.close();
rs.close();
ps.close();
}
}catch(Exception c)
{
c.printStackTrace();
}
}
});
show.setBounds(302, 22, 89, 23);
contentPane.add(show);
img = new JLabel("");
img.setBounds(114, 54, 269, 171);
contentPane.add(img);
}
}
This is the code for inserting the image
import java.awt.EventQueue;
public class ImgC1 {
private JFrame frame;
private JLabel image;
private File images;
DataBufferByte data;
String s;
WritableRaster raster;
ImageIcon photo;
private static final int IMG_WIDTH = 120;
private static final int IMG_HEIGHT = 120;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
ImgC1 window = new ImgC1();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the application.
*/
public ImgC1() {
initialize();
}
/**
* Initialize the contents of the frame.
*/
Connection con=null;
private JTextField id;
public ImageIcon ResizeImage(String imgPath){
ImageIcon MyImage = new ImageIcon(imgPath);
Image img = MyImage.getImage();
Image newImage = img.getScaledInstance(image.getWidth(), image.getHeight(),Image.SCALE_SMOOTH);
ImageIcon image = new ImageIcon(newImage);
return image;
}
private static BufferedImage resizeImage(BufferedImage originalImage, int type) {
BufferedImage resizedImage = new BufferedImage(IMG_WIDTH, IMG_HEIGHT, type);
Graphics2D g = resizedImage.createGraphics();
g.drawImage(originalImage, 0, 0, IMG_WIDTH, IMG_HEIGHT, null);
g.dispose();
return resizedImage;
}
public Image toImage(BufferedImage bufferedImage) {
return Toolkit.getDefaultToolkit().createImage(bufferedImage.getSource());
}
private void initialize() {
con=dB.Connect();
frame = new JFrame();
frame.setBounds(100, 100, 643, 444);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().setLayout(null);
JButton browse = new JButton("Browse");
browse.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
JFileChooser chooser;
FileNameExtensionFilter filter;
chooser = new JFileChooser();
chooser.setCurrentDirectory(images);
filter = new FileNameExtensionFilter("jpeg, gif and png files", "jpg", "gif", "png");
chooser.addChoosableFileFilter(filter);
int i = chooser.showSaveDialog(null);
if (i == JFileChooser.APPROVE_OPTION) {
images = chooser.getSelectedFile();
image.setText(images.getAbsolutePath());
try {
BufferedImage originalImage = ImageIO.read(images);
int type = originalImage.getType() == 0 ? BufferedImage.TYPE_INT_ARGB : originalImage.getType();
photo=new ImageIcon();
BufferedImage resizeImageJpg = resizeImage(originalImage, type);
photo = new ImageIcon(toImage(resizeImageJpg));
raster = resizeImageJpg.getRaster();
data = (DataBufferByte) raster.getDataBuffer();
} catch (IOException e) {
System.out.println(e.getMessage());
}
}
}
});
browse.setBounds(270, 282, 89, 23);
frame.getContentPane().add(browse);
JButton save = new JButton("Save");
save.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
try{
PreparedStatement ps = con.prepareStatement("insert into showme(id,image) values (?,?)");
//InputStream is = new FileInputStream(new File(s));
byte[] bt=data.getData();
ps.setString(1, id.getText());
ps.setBytes(2,bt);
ps.executeUpdate();
JOptionPane.showMessageDialog(null, "Data Inserted");
ps.close();
}catch(Exception c)
{
c.printStackTrace();
}
}
});
save.setBounds(270, 316, 89, 23);
frame.getContentPane().add(save);
image = new JLabel("New label");
image.setBounds(236, 141, 168, 130);
frame.getContentPane().add(image);
id = new JTextField();
id.setBounds(206, 60, 232, 23);
frame.getContentPane().add(id);
id.setColumns(10);
}
}
Related
I capture screenshots using the BufferedImage but when I get the picture it showed in a bad quality.
Here's my code:
Rectangle screenShot=new Rectangle(graphPanel.getX()+this.getX()+5,
graphPanel.getY()+this.getY()+navPanel.getHeight()+4,
graphPanel.getWidth(), graphPanel.getHeight());
BufferedImage capture=new Robot().createScreenCapture(screenShot);
ImageIO.write(capture, "jpg",new File("./PDFs/test"+"Graph"+".png"));
ImageIO.write(capture, "jpg",new File("./PDFs/test"+"Graph"+".png"));
Should be:
ImageIO.write(capture, "png",new File("./PDFs/test"+"Graph"+".png"));
Calling an image a PNG in the file extension won't make it a PNG. It also needs to be encoded as a PNG.
[I] did [change] it, but no result
What output do you get for this code? Here I get:
type: jpg Color difference: 926283 or 0.7852198282877604%.
type: png Color difference: 0 or 0.0%.
import java.awt.*;
import java.awt.event.*;
import java.awt.image.BufferedImage;
import javax.swing.*;
import javax.swing.border.EmptyBorder;
import javax.imageio.ImageIO;
import java.io.*;
import java.net.*;
public class ImageSave {
private JComponent ui = null;
public final static String[] types = {"jpg","png"};
private final JComboBox<String> typesBox = new JComboBox<>(types);
BufferedImage image;
BufferedImage imageCoded;
JLabel imageLabel = new JLabel();
JLabel imageCodedLabel = new JLabel();
JLabel output = new JLabel("Output appears here..");
ImageSave() {
try {
initUI();
} catch (Exception ex) {
ex.printStackTrace();
}
}
public final void initUI() throws Exception {
if (ui != null) {
return;
}
ui = new JPanel(new BorderLayout(4,4));
ui.setBorder(new EmptyBorder(4, 4, 4, 4));
URL url = new URL("https://i.stack.imgur.com/7bI1Y.jpg");
image = ImageIO.read(url);
imageLabel.setIcon(new ImageIcon(image));
JPanel picsPanel = new JPanel(new GridLayout(1, 0, 4, 4));
ui.add(picsPanel);
picsPanel.add(imageLabel);
picsPanel.add(imageCodedLabel);
JToolBar toolBar = new JToolBar();
ui.add(toolBar, BorderLayout.PAGE_START);
toolBar.setLayout(new FlowLayout(FlowLayout.LEADING));
toolBar.add(typesBox);
ActionListener refreshListener = (ActionEvent e) -> {
try {
updateGUI();
} catch (Exception ex) {
ex.printStackTrace();
}
};
typesBox.addActionListener(refreshListener);
toolBar.add(output);
updateGUI();
}
private void updateGUI() throws Exception {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
String type = typesBox.getSelectedItem().toString();
ImageIO.write(image, type, baos);
ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
imageCoded = ImageIO.read(bais);
imageCodedLabel.setIcon(new ImageIcon(imageCoded));
int diff = compareImages();
int max = image.getWidth()*image.getHeight()*256*3;
double percent = 100d*(double)diff/(double)max;
String s = "type: " + type + " Color difference: " + diff +
" or " + percent + "%.";
System.out.println(s);
output.setText(s);
}
private int compareImages() {
int diff = 0;
for (int xx=0; xx<image.getWidth(); xx++) {
for (int yy=0; yy<image.getHeight(); yy++) {
Color rgb1 = new Color(image.getRGB(xx, yy));
Color rgb2 = new Color(imageCoded.getRGB(xx, yy));
int r1 = rgb1.getRed();
int g1 = rgb1.getGreen();
int b1 = rgb1.getBlue();
int r2 = rgb2.getRed();
int g2 = rgb2.getGreen();
int b2 = rgb2.getBlue();
diff += Math.abs(r1-r2);
diff += Math.abs(g1-g2);
diff += Math.abs(b1-b2);
}
}
return diff;
}
public JComponent getUI() {
return ui;
}
public static void main(String[] args) {
Runnable r = () -> {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception useDefault) {
}
ImageSave o = new ImageSave();
JFrame f = new JFrame(o.getClass().getSimpleName());
f.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
f.setLocationByPlatform(true);
f.setContentPane(o.getUI());
f.pack();
f.setMinimumSize(f.getSize());
f.setVisible(true);
};
SwingUtilities.invokeLater(r);
}
}
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The code is being modified a bit . I added a button to the Jpanel whose action event save the image on the disk .
Source Code
package ImageResize;
import java.awt.image.BufferedImage;
import java.awt.*;
import java.awt.event.*;
import java.awt.image.RenderedImage;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.*;
import javax.swing.event.*;
import javax.imageio.*;
import java.io.*;
import javax.imageio.stream.ImageOutputStream;
import javax.imageio.plugins.jpeg.JPEGImageWriteParam;
import java.util.Locale;
import javax.swing.filechooser.FileNameExtensionFilter;
class ImageCompressionDemo {
private BufferedImage originalImage;
private BufferedImage textImage;
private JPanel gui;
private JCheckBox antialiasing;
private
JCheckBox rendering;
private JCheckBox fractionalMetrics;
private JCheckBox strokeControl;
private JCheckBox colorRendering;
private JCheckBox dithering;
private JComboBox textAntialiasing;
private JComboBox textLcdContrast;
private JLabel jpegLabel;
private JLabel pngLabel;
private JTextArea output;
private JSlider quality;
private JButton saveButton;
private int pngSize;
private int jpgSize;
final static Object[] VALUES_TEXT_ANTIALIASING = {
RenderingHints.VALUE_TEXT_ANTIALIAS_OFF,
RenderingHints.VALUE_TEXT_ANTIALIAS_ON,
RenderingHints.VALUE_TEXT_ANTIALIAS_GASP,
RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_HBGR,
RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_HRGB,
RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_VBGR,
RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_VRGB
};
final static Object[] VALUES_TEXT_LCD_CONTRAST = {
new Integer(100),
new Integer(150),
new Integer(200),
new Integer(250)
};
ImageCompressionDemo(BufferedImage inputImage) {
int width = 280;
int height = 100;
gui = new JPanel(new BorderLayout(3,4));
gui.setPreferredSize(new Dimension(400, 600));
quality = new JSlider(JSlider.VERTICAL, 0, 100, 50);
quality.setSnapToTicks(true);
quality.setPaintTicks(true);
quality.setPaintLabels(true);
quality.setMajorTickSpacing(10);
quality.setMinorTickSpacing(1);
quality.addChangeListener( new ChangeListener(){
public void stateChanged(ChangeEvent ce) {
updateImages();
}
} );
gui.add(quality, BorderLayout.WEST);
originalImage = inputImage;
textImage =inputImage;
JPanel controls = new JPanel(new GridLayout(0,1,0,0));
antialiasing = new JCheckBox("Anti-aliasing", false);
rendering = new JCheckBox("Rendering - Quality", true);
fractionalMetrics = new JCheckBox("Fractional Metrics", true);
strokeControl = new JCheckBox("Stroke Control - Pure", false);
colorRendering = new JCheckBox("Color Rendering - Quality", true);
dithering = new JCheckBox("Dithering", false);
saveButton =new JButton("Save Image");
saveButton.addActionListener(new ActionListener() {
#Override
public void actionPerformed(ActionEvent e) {
try {
BufferedImage img = (BufferedImage)getJpegCompressedImage(originalImage);
File outputfile = new File("C:/Users/uday/Desktop/newImage.jpg");
ImageIO.write(img, "jpg", outputfile);
} catch (IOException ex) {
Logger.getLogger(ImageCompressionDemo.class.getName()).log(Level.SEVERE, null, ex);
}
} });
controls.add(antialiasing);
controls.add(fractionalMetrics);
textLcdContrast = new JComboBox(VALUES_TEXT_LCD_CONTRAST);
JPanel lcdContrastPanel = new JPanel(new FlowLayout(FlowLayout.LEADING));
lcdContrastPanel.add(textLcdContrast);
lcdContrastPanel.add(new JLabel("Text LCD Contrast"));
controls.add(lcdContrastPanel);
textAntialiasing = new JComboBox(VALUES_TEXT_ANTIALIASING);
controls.add(textAntialiasing);
controls.add(dithering);
controls.add(rendering);
controls.add(colorRendering);
controls.add(strokeControl);
ItemListener itemListener = new ItemListener(){
public void itemStateChanged(ItemEvent e) {
updateImages();
}
};
antialiasing.addItemListener(itemListener);
rendering.addItemListener(itemListener);
fractionalMetrics.addItemListener(itemListener);
strokeControl.addItemListener(itemListener);
colorRendering.addItemListener(itemListener);
dithering.addItemListener(itemListener);
textAntialiasing.addItemListener(itemListener);
textLcdContrast.addItemListener(itemListener);
Graphics2D g2d = originalImage.createGraphics();
gui.add(controls, BorderLayout.EAST);
gui.add(saveButton,BorderLayout.BEFORE_FIRST_LINE);
JPanel images = new JPanel(new GridLayout(0,1,2,2));
images.add(new JLabel(new ImageIcon(textImage)));
try {
pngLabel = new JLabel(new ImageIcon(getPngCompressedImage(textImage)));
images.add(pngLabel);
jpegLabel = new JLabel(new ImageIcon(getJpegCompressedImage(textImage)));
images.add(jpegLabel);
} catch(IOException ioe) {
}
gui.add(images, BorderLayout.CENTER);
output = new JTextArea(4,40);
output.setEditable(false);
gui.add(new JScrollPane(output), BorderLayout.SOUTH);
updateImages();
JOptionPane.showMessageDialog(null, gui);
}
private Image getPngCompressedImage(BufferedImage image) throws IOException {
ByteArrayOutputStream outStream = new ByteArrayOutputStream();
ImageIO.write( image, "png", outStream );
pngSize = outStream.toByteArray().length;
BufferedImage compressedImage =
ImageIO.read(new ByteArrayInputStream(outStream.toByteArray()));
return compressedImage;
}
private Image getJpegCompressedImage(BufferedImage image) throws IOException {
float qualityFloat = (float)quality.getValue()/100f;
ByteArrayOutputStream outStream = new ByteArrayOutputStream();
ImageWriter imgWriter = ImageIO.getImageWritersByFormatName( "jpg" ).next();
ImageOutputStream ioStream = ImageIO.createImageOutputStream( outStream );
imgWriter.setOutput( ioStream );
JPEGImageWriteParam jpegParams = new JPEGImageWriteParam( Locale.getDefault() );
jpegParams.setCompressionMode( ImageWriteParam.MODE_EXPLICIT );
jpegParams.setCompressionQuality( qualityFloat );
imgWriter.write( null, new IIOImage( image, null, null ), jpegParams );
ioStream.flush();
ioStream.close();
imgWriter.dispose();
jpgSize = outStream.toByteArray().length;
BufferedImage compressedImage = ImageIO.read(new ByteArrayInputStream(outStream.toByteArray()));
return compressedImage;
}
private void updateText() {
StringBuilder builder = new StringBuilder();
builder.append("Fractional Metrics: \t");
builder.append( fractionalMetrics.isSelected() );
builder.append("\n");
builder.append( textAntialiasing.getSelectedItem() );
builder.append("\nPNG size: \t");
builder.append(pngSize);
builder.append(" bytes\n");
builder.append("JPG size: \t");
builder.append(jpgSize);
builder.append(" bytes \tquality: ");
builder.append(quality.getValue());
output.setText(builder.toString());
}
private void updateImages() {
int width = originalImage.getWidth();
int height = originalImage.getHeight();
Graphics2D g2dText = textImage.createGraphics();
if (antialiasing.isSelected()) {
g2dText.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
} else {
g2dText.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_OFF);
}
if (rendering.isSelected()) {
g2dText.setRenderingHint(RenderingHints.KEY_RENDERING,
RenderingHints.VALUE_RENDER_QUALITY);
} else {
g2dText.setRenderingHint(RenderingHints.KEY_RENDERING,
RenderingHints.VALUE_RENDER_SPEED);
}
if (fractionalMetrics.isSelected()) {
g2dText.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS,
RenderingHints.VALUE_FRACTIONALMETRICS_ON);
} else {
g2dText.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS,
RenderingHints.VALUE_FRACTIONALMETRICS_OFF);
}
if (strokeControl.isSelected()) {
g2dText.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL,
RenderingHints.VALUE_STROKE_NORMALIZE);
} else {
g2dText.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL,
RenderingHints.VALUE_STROKE_PURE);
}
if (dithering.isSelected()) {
g2dText.setRenderingHint(RenderingHints.KEY_DITHERING,
RenderingHints.VALUE_DITHER_ENABLE);
} else {
g2dText.setRenderingHint(RenderingHints.KEY_DITHERING,
RenderingHints.VALUE_DITHER_DISABLE);
}
if (colorRendering.isSelected()) {
g2dText.setRenderingHint(RenderingHints.KEY_COLOR_RENDERING,
RenderingHints.VALUE_COLOR_RENDER_QUALITY);
} else {
g2dText.setRenderingHint(RenderingHints.KEY_COLOR_RENDERING,
RenderingHints.VALUE_COLOR_RENDER_SPEED);
}
g2dText.setRenderingHint(RenderingHints.KEY_TEXT_LCD_CONTRAST,
textLcdContrast.getSelectedItem());
g2dText.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
textAntialiasing.getSelectedItem());
g2dText.drawImage(originalImage, 0,0, null);
try {
jpegLabel.setIcon(new ImageIcon(getJpegCompressedImage(textImage)));
pngLabel.setIcon(new ImageIcon(getPngCompressedImage(textImage)));
} catch(IOException ioe) {
}
gui.repaint();
updateText();
}
public static void main(String[] args) {
SwingUtilities.invokeLater( new Runnable() {
public void run() {
try {
FileNameExtensionFilter filter = new FileNameExtensionFilter("Pictures","jpg","png");
JFileChooser fc = new JFileChooser();
fc.setFileFilter(filter);
int returnVal = fc.showOpenDialog(null);
if (returnVal == JFileChooser.APPROVE_OPTION) {
File file = fc.getSelectedFile();
String Path = file.getPath();
BufferedImage originalImage = ImageIO.read(new File(Path));
ImageCompressionDemo iwt = new ImageCompressionDemo(originalImage);
}
} catch (IOException ex) {
Logger.getLogger(ImageCompressionDemo.class.getName()).log(Level.SEVERE, null, ex);
}
}
} );
}
}
Here the Image size displayed in jpegLabel label variable is different from what is being saved on the disk . I want the size of the image saved on the disk to be of same size which is being displayed .
Reference to the Question : Need Java function that takes image and imagesize(in Kb) as input and return an image
The problem is here:
BufferedImage img = (BufferedImage)getJpegCompressedImage(originalImage);
File outputfile = new File("C:/Users/uday/Desktop/newImage.jpg");
ImageIO.write(img, "jpg", outputfile);
..when using the ImageIO class that way, it ignores whatever compression has been applied to the image and saves it using standard compression! The trick to saving the compressed image is to change the getJpegCompressedImage method to saveJpegCompressedImage, and instead of returning an Image it should declare void and save the byte[] directly to disk (using standard I/O).
E.G. as seen in this example:
Original image (unknown compression)
As seen in Example images for code and mark-up Q&As.
Saved as quality .2 (6,327 bytes)
Saved as quality .8 (18,702 bytes)
Code
import java.awt.Desktop;
import java.awt.image.BufferedImage;
import java.io.*;
import java.net.URL;
import java.util.Locale;
import javax.imageio.*;
import javax.imageio.plugins.jpeg.JPEGImageWriteParam;
import javax.imageio.stream.ImageOutputStream;
public class CompressImage {
/** TODO: This method has terrible handling of I/O.
Rewrite for production use. BNI. */
static public void saveJpegCompressedImage(
BufferedImage image,
float quality,
File file) throws Exception {
OutputStream outStream = new FileOutputStream(
new File(file, "Image-" + quality + ".jpg"));
ImageWriter imgWriter = ImageIO.
getImageWritersByFormatName("jpg").next();
ImageOutputStream ioStream =
ImageIO.createImageOutputStream(outStream);
imgWriter.setOutput(ioStream);
JPEGImageWriteParam jpegParams = new JPEGImageWriteParam(
Locale.getDefault());
jpegParams.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
jpegParams.setCompressionQuality(quality);
imgWriter.write(null, new IIOImage(image, null, null), jpegParams);
ioStream.flush();
ioStream.close();
imgWriter.dispose();
}
public static void main(String[] args) throws Exception {
URL url = new URL("http://i.stack.imgur.com/7bI1Y.jpg");
File f = new File(System.getProperty("user.home"));
BufferedImage bi = ImageIO.read(url);
for (float q = 0.2f; q < .9f; q += .2f) {
saveJpegCompressedImage(bi, q, f);
}
Desktop.getDesktop().open(f);
}
}
I have java source,and when I run,it writes
java.sql.SQLException: [Microsoft][ODBC Driver Manager] Data source name not found and no default driver
I thinks it is needed ODBC driver,but I can't see it.
Java source code:
import java.awt.Image;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
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.JTextField;
import javax.swing.SwingUtilities;
import java.sql.*;
import java.awt.*;
import java.io.*;
import javax.swing.*;
import java.awt.image.*;
import java.awt.event.*;
/**
* This code was edited or generated using CloudGarden's Jigloo
* SWT/Swing GUI Builder, which is free for non-commercial
* use. If Jigloo is being used commercially (ie, by a corporation,
* company or business for any purpose whatever) then you
* should purchase a license for each developer using Jigloo.
* Please visit www.cloudgarden.com for details.
* Use of Jigloo implies acceptance of these licensing terms.
* A COMMERCIAL LICENSE HAS NOT BEEN PURCHASED FOR
* THIS MACHINE, SO JIGLOO OR THIS CODE CANNOT BE USED
* LEGALLY FOR ANY CORPORATE OR COMMERCIAL PURPOSE.
*/
public class a extends javax.swing.JDialog {
private JLabel jLabel1;
private JLabel jLabel2;
private JLabel jLabel3;
private JLabel jLabel4;
private JTextField txtPiradi;
private JTextField txtSaxeli;
private JTextField txtGvari;
Image img;
File file = null;
String path = "";
JTextField text = new JTextField(20);
JButton browse, save;
Connection conn = null;
ResultSet rs = null;
Statement stmt = null;
/**
* Auto-generated main method to display this JDialog
*/
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
JFrame frame = new JFrame();
wevrtaDamateba inst = new wevrtaDamateba(frame);
inst.setVisible(true);
}
});
}
public wevrtaDamateba(JFrame frame) {
super(frame);
initGUI();
}
private void initGUI() {
try {
{
getContentPane().setLayout(null);
this.setTitle("\u10d0\u10ee\u10d0\u10da\u10d8 \u10ec\u10d4\u10d5\u10e0\u10d8\u10e1 \u10d3\u10d0\u10db\u10d0\u10e2\u10d4\u10d1\u10d0");
{
jLabel1 = new JLabel();
getContentPane().add(jLabel1);
jLabel1.setText("\u10e1\u10d0\u10ee\u10d4\u10da\u10d8:");
jLabel1.setFont(new java.awt.Font("Sylfaen",0,12));
jLabel1.setBounds(78, 21, 60, 40);
}
{
jLabel2 = new JLabel();
getContentPane().add(jLabel2);
jLabel2.setText("\u10d2\u10d5\u10d0\u10e0\u10d8:");
jLabel2.setFont(new java.awt.Font("Sylfaen",0,12));
jLabel2.setBounds(78, 67, 60, 40);
}
{
jLabel3 = new JLabel();
getContentPane().add(jLabel3);
jLabel3.setText("\u10de\u10d8\u10e0\u10d0\u10d3\u10d8 N:");
jLabel3.setFont(new java.awt.Font("Sylfaen",0,12));
jLabel3.setBounds(78, 112, 60, 40);
}
{
jLabel4 = new JLabel();
getContentPane().add(jLabel4);
jLabel4.setText("\u10e1\u10e3\u10e0\u10d0\u10d7\u10d8:");
jLabel4.setFont(new java.awt.Font("Sylfaen",0,12));
jLabel4.setBounds(78, 152, 60, 40);
}
{
txtSaxeli = new JTextField();
getContentPane().add(txtSaxeli);
txtSaxeli.setBounds(161, 28, 180, 23);
}
{
txtGvari = new JTextField();
getContentPane().add(txtGvari);
txtGvari.setBounds(161, 74, 180, 23);
}
{
txtPiradi = new JTextField();
getContentPane().add(txtPiradi);
txtPiradi.setBounds(161, 119, 180, 23);
}
{
browse = new JButton();
getContentPane().add(browse);
browse.setText("\u10e1\u10e3\u10e0\u10d0\u10d7\u10d8\u10e1 \u10d0\u10e0\u10e9\u10d4\u10d5\u10d0");
browse.setBounds(161, 159, 180, 23);
browse.setFont(new java.awt.Font("Sylfaen",0,12));
browse.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JFileChooser chooser = new JFileChooser();
chooser.addChoosableFileFilter(new ImageFileFilter());
int returnVal = chooser.showOpenDialog(null);
if (returnVal == JFileChooser.APPROVE_OPTION) {
file = chooser.getSelectedFile();
path = file.getPath();
ImageIcon icon = new ImageIcon(path);
// label.setIcon(icon);
text.setText(path);
repaint();
}
}
});
}
{
save = new JButton();
getContentPane().add(save);
save.setText("\u10d3\u10d0\u10db\u10d0\u10e2\u10d4\u10d1\u10d0");
save.setBounds(173, 224, 123, 23);
save.setFont(new java.awt.Font("Sylfaen",0,12));
save.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
try {
File f = new File(path);
String saxeli = txtSaxeli.getText();
String gvari = txtGvari.getText();
int piradi = Integer.parseInt(txtPiradi.getText());
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
conn = DriverManager.getConnection("jdbc:odbc:Base","","");
PreparedStatement psmnt = conn
.prepareStatement("insert into user('saxeli','gvari','piradi','img') values (?,?,?,?)");
FileInputStream fis = new FileInputStream(f);
psmnt.setString(1, saxeli);
psmnt.setString(2, gvari);
psmnt.setInt(3, piradi);
psmnt.setBinaryStream(4, (InputStream) fis,
(int) (f.length()));
int s = psmnt.executeUpdate();
JOptionPane.showMessageDialog(null,
"Inserted successfully!");
} catch (Exception ex) {
System.out.print(ex);
}
}
});
}
}
this.setSize(665, 346);
} catch (Exception e) {
e.printStackTrace();
}
}
protected void clear() {
// TODO Auto-generated method stub
}
class ImageFileFilter extends javax.swing.filechooser.FileFilter {
public boolean accept(File file) {
if (file.isDirectory())
return false;
String name = file.getName().toLowerCase();
return (name.endsWith(".jpg") || name.endsWith(".png") || name
.endsWith(".gif"));
}
public String getDescription() {
return "Images (*.gif,*.bmp, *.jpg, *.png )";
}
}
}
Check whether you have Base ODBC DataSource in your ODBC DataSource Panel.
my question is i want to add full background image if JDialog, this JDialog is created by JOptionPane. This image does not cover full Dialog.
If you have any solution please let me know.
public class BrowseFilePath {
public static final String DIALOG_NAME = "what-dialog";
public static final String PANE_NAME = "what-pane";
private static JDialog loginRegister;
private static String path;
private static JPanel Browse_panel = new JPanel(new BorderLayout());
private static JLabel pathLbl = new JLabel("Please Choose Folder / File");
private static JTextField regtxt_file = new JTextField(30);
private static JButton browse_btn = new JButton("Browse");
private static JButton ok_btn = new JButton("Ok");
private static JButton close_btn = new JButton("Cancel");
/*public static void main(String [] arg){
showFileDialog();
}*/
public static void showFileDialog() {
JOptionPane.setDefaultLocale(null);
JOptionPane pane = new JOptionPane(createRegInputComponent());
pane.setName(PANE_NAME);
loginRegister = pane.createDialog("ShareBLU");
/* try {
loginRegister.setContentPane(new JLabel(new ImageIcon(ImageIO.read(AlertWindow.getBgImgFilePath()))));
} catch (IOException e) {
e.printStackTrace();
}*/
loginRegister.setName(DIALOG_NAME);
loginRegister.setSize(380,150);
loginRegister.setVisible(true);
if(pane.getInputValue().equals("Ok")){
String getTxt = regtxt_file.getText();
BrowseFilePath.setPath(getTxt);
}
else if(pane.getInputValue().equals("Cancel")){
regtxt_file.setText("");
System.out.println("Pressed Cancel Button =======********=");
System.exit(0);
}
}
public static String getPath() {
return path;
}
public static void setPath(String path) {
BrowseFilePath.path = path;
}
private static JComponent createRegInputComponent() {
Browse_panel = new JBackgroundPanel();
Browse_panel.setLayout(new BorderLayout());
Box rows = Box.createVerticalBox();
Browse_panel.setBounds(0,0,380,150);
Browse_panel.add(pathLbl);
pathLbl.setForeground(Color.white);
pathLbl.setBounds(20, 20, 200, 20);
Browse_panel.add(regtxt_file);
regtxt_file.setToolTipText("Select File/Folder..");
regtxt_file.setBounds(20, 40, 220, 20);
Browse_panel.add(browse_btn);
browse_btn.setToolTipText("Browse");
browse_btn.setBounds(250, 40, 90, 20);
Browse_panel.add(ok_btn);
ok_btn.setToolTipText("Ok");
ok_btn.setBounds(40, 75, 80, 20);
Browse_panel.add(close_btn);
close_btn.setToolTipText("Cancel");
close_btn.setBounds(130, 75, 80, 20);
ActionListener chooseMe = createChoiceAction();
ok_btn.addActionListener(chooseMe);
close_btn.addActionListener(chooseMe);
browse_btn.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JFileChooser fileChooser = new JFileChooser();
int selection = JFileChooser.FILES_AND_DIRECTORIES;
fileChooser.setFileSelectionMode(selection);
fileChooser.setAcceptAllFileFilterUsed(false);
int rVal = fileChooser.showOpenDialog(null);
if (rVal == JFileChooser.APPROVE_OPTION) {
path = fileChooser.getSelectedFile().toString();
regtxt_file.setText(path);
}
}
});
rows.add(Box.createVerticalStrut(105));
Browse_panel.add(rows,BorderLayout.CENTER);
return Browse_panel;
}
public static ActionListener createChoiceAction() {
ActionListener chooseMe = new ActionListener() {
#Override
public void actionPerformed(ActionEvent e) {
JButton choice = (JButton) e.getSource();
// find the pane so we can set the choice.
Container parent = choice.getParent();
while (!PANE_NAME.equals(parent.getName())) {
parent = parent.getParent();
}
JOptionPane pane = (JOptionPane) parent;
pane.setInputValue(choice.getText());
// find the dialog so we can close it.
while ((parent != null) && !DIALOG_NAME.equals(parent.getName()))
{
parent = parent.getParent();
//parent.setBounds(0, 0, 350, 150);
}
if (parent != null) {
parent.setVisible(false);
}
}
};
return chooseMe;
}
}
Don't use JOptionPane but use a full-blown JDialog. Set the content pane to a JComponent that overrides paintComponent() and returns an appropriate getPreferredSize().
Example code below:
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Frame;
import java.awt.Graphics;
import java.net.MalformedURLException;
import java.net.URL;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
public class TestBackgroundImage {
private static final String BACKHGROUND_IMAGE_URL = "http://cache2.allpostersimages.com/p/LRG/27/2740/AEPND00Z/affiches/blue-fiber-optic-wires-against-black-background.jpg";
protected void initUI() throws MalformedURLException {
JDialog dialog = new JDialog((Frame) null, TestBackgroundImage.class.getSimpleName());
dialog.setModal(true);
dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
final ImageIcon backgroundImage = new ImageIcon(new URL(BACKHGROUND_IMAGE_URL));
JPanel mainPanel = new JPanel(new BorderLayout()) {
#Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
g.drawImage(backgroundImage.getImage(), 0, 0, getWidth(), getHeight(), this);
}
#Override
public Dimension getPreferredSize() {
Dimension size = super.getPreferredSize();
size.width = Math.max(backgroundImage.getIconWidth(), size.width);
size.height = Math.max(backgroundImage.getIconHeight(), size.height);
return size;
}
};
mainPanel.add(new JButton("A button"), BorderLayout.WEST);
dialog.add(mainPanel);
dialog.setSize(400, 300);
dialog.setVisible(true);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
#Override
public void run() {
try {
new TestBackgroundImage().initUI();
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});
}
}
Don't forget to provide an appropriate parent Frame
After saving some images from a site into an ArrayList i am trying to create a jpanel which will display all these images in seperate jpanels with a scrollpane so that i can add action events to each. The user will then be able to select a jpanel with the relevant picture and click a "copy" button to save this image to the clipboard.
The following code works fine to add one picture:
picHolder = new JPanel();
picHolder.setSize(50,450);
picHolder.setBackground(Color.white);
Icon testicon = new ImageIcon(imageList.get(0));
JPanel test = new JPanel();
JLabel testLabel = new JLabel();
testLabel.setIcon(testicon);
test.add(testLabel);
picHolder.add(test);
however when i try to create panels within panels by using the following loop:
panelArray = new JPanel[imageList.size()];
labelArray = new JLabel[imageList.size()];
imageArray = new ImageIcon[imageList.size()];
for (int x=0; x>imageList.size(); x++) {
imageArray[x] = new ImageIcon(imageList.get(x));
panelArray[x] = new JPanel();
panelArray[x].setBackground(Color.red);
labelArray[x] = new JLabel();
labelArray[x].setIcon(imageArray[x]);
panelArray[x].setLayout(new FlowLayout());
panelArray[x].add(labelArray[x]);
picHolder.add(panelArray[x]);
picHolder.validate();
picHolder.repaint();
}
I get only a blank screen. I have tried moving various elements around however i cannot see what i am doing wrong. If anyone has any suggestions or perhaps an alternative way of achieving my objective it would be greatly appreciated.
Edit
SSCCE
package scrollbartester;
import org.jsoup.Jsoup;
import org.jsoup.helper.Validate;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;
import org.jsoup.select.Selector;
import java.net.*;
import javax.imageio.*;
import java.util.ArrayList;
import java.awt.*;
import java.awt.Event;
import javax.swing.*;
public class ScrollBarTester {
ArrayList<Image> imageList = new ArrayList<Image>() ;
URL url;
public ArrayList ripPics() {
String fullST = "http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Dstripbooks&field-keywords=fish&x=0&y=0";
try {
Document doc = Jsoup.connect(fullST).timeout(10*1000).get();
Elements jpgs = doc.select("img[src$=.jpg]");
Element pictest = jpgs.get((jpgs.size()-1));
System.out.println(pictest);
for (int countPics = 0; countPics < jpgs.size(); countPics++) {
Element currentPic = jpgs.get(countPics);
String currentPicString = currentPic.toString();
System.out.println(currentPicString);
int startofAddress = currentPicString.indexOf("http:");
int endofAddress = (currentPicString.indexOf(".jpg") + 4);
String urlOfImage = currentPicString.substring(startofAddress, endofAddress);
url = new URL(urlOfImage);
Image currentImage = ImageIO.read(url);
imageList.add(currentImage);
}
}catch (MalformedURLException e) {
} catch (Exception e) {
e.printStackTrace();
}
return imageList;
}
public static void main(String[] args) {
PicRipper ripper = new PicRipper();
ArrayList<Image> imageList = ripper.ripPics();
System.out.println(imageList.size());
JScrollPane scrollPane;
JFrame main = new JFrame();
main.setSize(50, 500);
main.setDefaultCloseOperation(main.EXIT_ON_CLOSE);
JPanel picHolder = new JPanel();
picHolder.setSize(450,450);
picHolder.setBackground(Color.white);
//Icon testicon = new ImageIcon(imageList.get(0));
//JPanel test = new JPanel();
//JLabel testLabel = new JLabel();
//testLabel.setIcon(testicon);
//test.add(testLabel);
//picHolder.add(test);
JPanel [] panelArray = new JPanel[imageList.size()];
JLabel [] labelArray = new JLabel[imageList.size()];
ImageIcon [] imageArray = new ImageIcon[imageList.size()];
for (int x=0; x>imageList.size(); x++) {
imageArray[x] = new ImageIcon(imageList.get(x));
panelArray[x] = new JPanel();
panelArray[x].setBackground(Color.red);
labelArray[x] = new JLabel();
labelArray[x].setIcon(imageArray[x]);
panelArray[x].setLayout(new FlowLayout());
panelArray[x].add(labelArray[x]);
picHolder.add(panelArray[x]);
picHolder.validate();
picHolder.repaint();
}
scrollPane = new JScrollPane(picHolder);
main.getContentPane().add(BorderLayout.CENTER, scrollPane);
main.setVisible(true);
}
}
For example a SSCCE that uses a JList -- which can hold ImageIcons:
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.Window;
import java.awt.image.BufferedImage;
import java.net.URL;
import java.util.concurrent.ExecutionException;
import javax.imageio.ImageIO;
import javax.swing.*;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
public class PicStrip extends JPanel {
public static final String[] IMAGE_URLS = {
"http://upload.wikimedia.org/wikipedia/commons/6/63/Lagavulin_-_entrance.JPG",
"http://upload.wikimedia.org/wikipedia/commons/1/1d/Parliament-Ottawa_edit1.jpg",
"http://upload.wikimedia.org/wikipedia/commons/b/b0/100OLYMP1.jpg",
"http://upload.wikimedia.org/wikipedia/commons/1/17/Arpino_panorama.jpg",
"http://upload.wikimedia.org/wikipedia/commons/a/ad/Cegonha_alsaciana.jpg",
"http://upload.wikimedia.org/wikipedia/commons/1/18/Eau_transparente_naturelle.JPG",
"http://upload.wikimedia.org/wikipedia/commons/4/4d/FA-18F_Breaking_SoundBarrier.jpg",
"http://upload.wikimedia.org/wikipedia/commons/5/58/PuntadelEste.jpg",
"http://upload.wikimedia.org/wikipedia/commons/3/3c/Punta_Gorda_Belize-gm.jpg",
"http://upload.wikimedia.org/wikipedia/commons/6/64/Yungangshiku.JPG",
"http://upload.wikimedia.org/wikipedia/commons/e/e2/Wheel_of_Konark%2C_Orissa%2C_India.JPG",
"http://upload.wikimedia.org/wikipedia/commons/1/16/Muretto_a_secco.jpg",
"http://upload.wikimedia.org/wikipedia/commons/3/31/Mercedes_AMG_CLS_55_-_Demonstration_of_drifting_1a_1280x960.jpg",
"http://upload.wikimedia.org/wikipedia/commons/d/d3/Cascade_carieul_1280x960.jpg",
"http://upload.wikimedia.org/wikipedia/commons/1/17/Bobbahn_ep.jpg"
};
private ImageIcon[] icons = new ImageIcon[IMAGE_URLS.length];
private DefaultListModel iconListModel = new DefaultListModel();
private JList iconList = new JList(iconListModel);
private ImagePanel imagePanel = new ImagePanel();
public PicStrip() {
setLayout(new BorderLayout());
add(new JScrollPane(iconList), BorderLayout.LINE_START);
add(imagePanel, BorderLayout.CENTER);
new SwingWorker<Void, ImageIcon>() {
#Override
protected Void doInBackground() throws Exception {
for (String imageUrl : IMAGE_URLS) {
BufferedImage img = ImageIO.read(new URL(imageUrl));
img = ImageUtil.createScaledImage(img);
ImageIcon icon = new ImageIcon(img, imageUrl);
publish(icon);
}
return null;
}
protected void process(java.util.List<ImageIcon> chunks) {
for (ImageIcon icon : chunks) {
iconListModel.addElement(icon);
}
};
protected void done() {
Window win = SwingUtilities.getWindowAncestor(PicStrip.this);
win.pack();
};
}.execute();
iconList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
iconList.addListSelectionListener(new ListSelectionListener() {
public void valueChanged(ListSelectionEvent e) {
ImageIcon icon = (ImageIcon)iconList.getSelectedValue();
final String imageUrl = icon.getDescription();
new SwingWorker<BufferedImage, Void>() {
protected BufferedImage doInBackground() throws Exception {
return ImageIO.read(new URL(imageUrl));
};
#Override
protected void done() {
try {
imagePanel.setImage(get());
} catch (InterruptedException e) {
e.printStackTrace();
} catch (ExecutionException e) {
e.printStackTrace();
}
}
}.execute();
}
});
}
private static void createAndShowGui() {
PicStrip mainPanel = new PicStrip();
JFrame frame = new JFrame("PicStrip");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().add(mainPanel);
frame.pack();
frame.setLocationByPlatform(true);
frame.setVisible(true);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGui();
}
});
}
}
class ImagePanel extends JPanel {
private static final int PREF_W = (3 * 1280) / 4;
private static final int PREF_H = (3 * 960) / 4;
private BufferedImage img = null;
public void setImage(BufferedImage img) {
this.img = img;
repaint();
}
#Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
if (img == null) {
return;
}
Graphics2D g2 = (Graphics2D)g;
g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
RenderingHints.VALUE_INTERPOLATION_BILINEAR);
g2.drawImage(img, 0, 0, PREF_W, PREF_H, null);
}
#Override
public Dimension getPreferredSize() {
return new Dimension(PREF_W, PREF_H);
}
}
class ImageUtil {
public static final int DEST_WIDTH = 100;
public static final int DEST_HEIGHT = 75;
public static final double ASPECT_RATIO = (double) DEST_WIDTH / DEST_HEIGHT;
public static BufferedImage createScaledImage(BufferedImage original) {
double origAspectRatio = (double) original.getWidth()
/ original.getHeight();
double scale = origAspectRatio > ASPECT_RATIO ?
(double) DEST_WIDTH / original.getWidth() :
(double) DEST_HEIGHT / original.getHeight();
int newW = (int) (original.getWidth() * scale);
int newH = (int) (original.getHeight() * scale);
BufferedImage img = new BufferedImage(DEST_WIDTH, DEST_HEIGHT,
BufferedImage.TYPE_INT_ARGB);
Graphics2D g2 = img.createGraphics();
g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
RenderingHints.VALUE_INTERPOLATION_BILINEAR);
g2.drawImage(original, 0, 0, newW, newH, null);
g2.dispose();
return img;
}
}
Edit 1
I've checked your SSCCE -- thanks for posting it, and one problem I found was a faulty for-loop. Try changing this:
for (int x = 0; x > imageList.size(); x++) {
imageArray[x] = new ImageIcon(imageList.get(x));
//....
}
to this:
for (int x = 0; x < imageList.size(); x++) {
imageArray[x] = new ImageIcon(imageList.get(x));
//....
}
I'm not sure if this is a bug in your actual program or if it's just a bug in the SSCCE, but it is critical.