Sistema para redimensionar imagens . . . (Código-Fonte + JAR)

flaviomirandadesouza · Abril 26, 2012, 10:25pm

Bom dia galera, venho através desta compartilhar um simples programa para redimensionamento de imagem que desenvolvi para fins acadêmicos . . .

[code]import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
import javax.swing.JFileChooser;
import javax.swing.JOptionPane;

/*

To change this template, choose Tools | Templates and open the template in
the editor.
/
/*
@author WINDOWS
*/
public class Main extends javax.swing.JFrame {

File arquivo;

/**
- Creates new form flavio
  */
  public Main() throws IOException {
  initComponents();
  }
/**
- This method is called from within the constructor to initialize the form.
- WARNING: Do NOT modify this code. The content of this method is always
- regenerated by the Form Editor.
  */
  @SuppressWarnings(“unchecked”)
  //
  private void initComponents() {
  
  jTextField1 = new javax.swing.JTextField();
  jLabel1 = new javax.swing.JLabel();
  EXTENSAO_TEXTO = new javax.swing.JLabel();
  ALT = new javax.swing.JSlider();
  jLabel3 = new javax.swing.JLabel();
  LAR = new javax.swing.JSlider();
  LARGURA = new javax.swing.JLabel();
  jButton1 = new javax.swing.JButton();
  jLabel4 = new javax.swing.JLabel();
  EXTENSAO = new javax.swing.JComboBox();
  ALTURA1 = new javax.swing.JLabel();
  jButton2 = new javax.swing.JButton();
  
  setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
  setTitle(“REDIMENSIONADOR DE IMAGENS”);
  setResizable(false);
  getContentPane().setLayout(null);
  
  jTextField1.setEditable(false);
  jTextField1.setHorizontalAlignment(javax.swing.JTextField.CENTER);
  jTextField1.setText(“CLIQUE PARA SELECIONAR A IMAGEM”);
  jTextField1.addMouseListener(new java.awt.event.MouseAdapter() {
  public void mouseClicked(java.awt.event.MouseEvent evt) {
  jTextField1MouseClicked(evt);
  }
  });
  jTextField1.addCaretListener(new javax.swing.event.CaretListener() {
  public void caretUpdate(javax.swing.event.CaretEvent evt) {
  jTextField1CaretUpdate(evt);
  }
  });
  jTextField1.addActionListener(new java.awt.event.ActionListener() {
  public void actionPerformed(java.awt.event.ActionEvent evt) {
  jTextField1ActionPerformed(evt);
  }
  });
  jTextField1.addKeyListener(new java.awt.event.KeyAdapter() {
  public void keyPressed(java.awt.event.KeyEvent evt) {
  jTextField1KeyPressed(evt);
  }
  });
  getContentPane().add(jTextField1);
  jTextField1.setBounds(10, 30, 245, 38);
  
  jLabel1.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));
  getContentPane().add(jLabel1);
  jLabel1.setBounds(270, 30, 240, 260);
  
  EXTENSAO_TEXTO.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
  EXTENSAO_TEXTO.setText(“EXTENSÃO - JPG”);
  getContentPane().add(EXTENSAO_TEXTO);
  EXTENSAO_TEXTO.setBounds(10, 190, 240, 20);
  
  ALT.setMaximum(3000);
  ALT.setMinimum(1);
  ALT.setPaintTicks(true);
  ALT.setValue(768);
  ALT.setValueIsAdjusting(true);
  ALT.addMouseMotionListener(new java.awt.event.MouseMotionAdapter() {
  public void mouseDragged(java.awt.event.MouseEvent evt) {
  ALTMouseDragged(evt);
  }
  });
  getContentPane().add(ALT);
  ALT.setBounds(10, 100, 240, 40);
  
  jLabel3.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
  jLabel3.setText(“ARQUIVO”);
  getContentPane().add(jLabel3);
  jLabel3.setBounds(10, 10, 250, 20);
  
  LAR.setMaximum(3000);
  LAR.setMinimum(1);
  LAR.setPaintTicks(true);
  LAR.setValue(1024);
  LAR.setValueIsAdjusting(true);
  LAR.addMouseMotionListener(new java.awt.event.MouseMotionAdapter() {
  public void mouseDragged(java.awt.event.MouseEvent evt) {
  LARMouseDragged(evt);
  }
  });
  getContentPane().add(LAR);
  LAR.setBounds(10, 160, 240, 40);
  
  LARGURA.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
  LARGURA.setText(“LARGURA - 1024PX”);
  getContentPane().add(LARGURA);
  LARGURA.setBounds(10, 140, 240, 20);
  
  jButton1.setText(“SALVAR”);
  jButton1.addActionListener(new java.awt.event.ActionListener() {
  public void actionPerformed(java.awt.event.ActionEvent evt) {
  jButton1ActionPerformed(evt);
  }
  });
  getContentPane().add(jButton1);
  jButton1.setBounds(10, 250, 240, 40);
  
  jLabel4.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
  jLabel4.setText(“VISUALIZADOR”);
  getContentPane().add(jLabel4);
  jLabel4.setBounds(270, 10, 240, 20);
  
  EXTENSAO.setModel(new javax.swing.DefaultComboBoxModel(new String[] { “BMP”, “JPG”, “GIF”, “PNG” }));
  EXTENSAO.setSelectedIndex(1);
  EXTENSAO.addActionListener(new java.awt.event.ActionListener() {
  public void actionPerformed(java.awt.event.ActionEvent evt) {
  EXTENSAOActionPerformed(evt);
  }
  });
  getContentPane().add(EXTENSAO);
  EXTENSAO.setBounds(10, 210, 240, 30);
  
  ALTURA1.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
  ALTURA1.setText(“ALTURA - 768PX”);
  getContentPane().add(ALTURA1);
  ALTURA1.setBounds(10, 80, 240, 20);
  
  jButton2.setText(“SOBRE O SOFTWARE”);
  jButton2.addActionListener(new java.awt.event.ActionListener() {
  public void actionPerformed(java.awt.event.ActionEvent evt) {
  jButton2ActionPerformed(evt);
  }
  });
  getContentPane().add(jButton2);
  jButton2.setBounds(10, 300, 500, 23);
  
  java.awt.Dimension screenSize = java.awt.Toolkit.getDefaultToolkit().getScreenSize();
  setBounds((screenSize.width-530)/2, (screenSize.height-366)/2, 530, 366);
  }//
private void jTextField1KeyPressed(java.awt.event.KeyEvent evt) {
}

private void ALTMouseDragged(java.awt.event.MouseEvent evt) {
EXTENSAO_TEXTO.setText("ALTURA - " + ALT.getValue() + “PX”);
}

private void LARMouseDragged(java.awt.event.MouseEvent evt) {
LARGURA.setText("LARGURA - " + LAR.getValue() + “PX”);
}

private void jTextField1CaretUpdate(javax.swing.event.CaretEvent evt) {
}

private void jTextField1MouseClicked(java.awt.event.MouseEvent evt) {
JFileChooser jfc = new JFileChooser(“C:/”);
int o = jfc.showOpenDialog(jfc);
```
 if (o == JFileChooser.APPROVE_OPTION) {
     arquivo = jfc.getSelectedFile();
     jTextField1.setText(arquivo.getName());

     visualizaImagem();
     int altura = 0, largura = 0;
     try {
         altura = ImageIO.read(arquivo).getHeight();

         largura = ImageIO.read(arquivo).getWidth();

     } catch (IOException ex) {
         System.out.println(ex);
     }

     ALT.setValue(altura);
     LAR.setValue(largura);
     EXTENSAO_TEXTO.setText("ALTURA - " + ALT.getValue() + "PX");
     LARGURA.setText("LARGURA - " + LAR.getValue() + "PX");
 }
```
}

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
salvaImagemRedimensionada();
}

private void jTextField1ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}

private void EXTENSAOActionPerformed(java.awt.event.ActionEvent evt) {
EXTENSAO_TEXTO.setText("EXTENSÃO - "+EXTENSAO.getSelectedItem().toString());
}

private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
JOptionPane.showMessageDialog(null, “ESTE SOFTWARE FOI DESENVOLVIDO POR FLÁVIO SOUZA FINS ACADÊMICOS . . .”
+ “\nCONTATOS - flaviomirandadesouza@gmail.com / (85) 8794-3937”.toUpperCase(),“SOBRE O SOFTWARE”,JOptionPane.INFORMATION_MESSAGE);
}

/**
- @param args the command line arguments
  /
  public static void main(String args[]) {
  /
  - Set the Nimbus look and feel
    /
    //
    /
  - If Nimbus (introduced in Java SE 6) is not available, stay with the
  - default look and feel. For details see
  - http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
    */
    try {
    for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
    if (“Nimbus”.equals(info.getName())) {
    javax.swing.UIManager.setLookAndFeel(info.getClassName());
    break;
    }
    }
    } catch (ClassNotFoundException ex) {
    java.util.logging.Logger.getLogger(Main.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (InstantiationException ex) {
    java.util.logging.Logger.getLogger(Main.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (IllegalAccessException ex) {
    java.util.logging.Logger.getLogger(Main.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (javax.swing.UnsupportedLookAndFeelException ex) {
    java.util.logging.Logger.getLogger(Main.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    }
    //
  /*
  - Create and display the form
    */
    java.awt.EventQueue.invokeLater(new Runnable() {
    
    public void run() {
    try {
    new Main().setVisible(true);
    } catch (IOException ex) {
    Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
    }
    }
    });
    }
    // Variables declaration - do not modify
    private javax.swing.JSlider ALT;
    private javax.swing.JLabel ALTURA1;
    private javax.swing.JComboBox EXTENSAO;
    private javax.swing.JLabel EXTENSAO_TEXTO;
    private javax.swing.JSlider LAR;
    private javax.swing.JLabel LARGURA;
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JLabel jLabel4;
    private javax.swing.JTextField jTextField1;
    // End of variables declaration
public void visualizaImagem() {
Image i = null;
try {
File f = arquivo;
i = ImageIO.read(f);
```
     jLabel1.setIcon(new ImageIcon(i.getScaledInstance(jLabel1.getWidth(), jLabel1.getHeight(), Image.SCALE_DEFAULT)));
 } catch (Exception ex) {
     if(ex.getMessage()==null){
         JOptionPane.showMessageDialog(null, "EXTENSÃO \""+arquivo.getName().substring(arquivo.getName().length()-4)
                 +"\" NÃO PERMITIDA\nFAVOR SELECIONAR UM ARQUIVO DE IMAGEM!!!\n\".bmp\",\".jpg\",\".png\",\".gif\"...","ATENÇÃO, VOCÊ NÃO SELECIONOU UMA IMAGEM!",JOptionPane.ERROR_MESSAGE);
         jTextField1.setText("CLIQUE PARA SELECIONAR A IMAGEM");
     }
 }
```
}

public void salvaImagemRedimensionada() {
Image i = null;
try {
i = ImageIO.read(arquivo);
} catch (IOException ex) {
Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
}
```
 BufferedImage bf = new BufferedImage(LAR.getValue(), ALT.getValue(), BufferedImage.TYPE_INT_RGB);
 Graphics2D g2d = bf.createGraphics();
 g2d.drawImage(i, 0, 0, LAR.getValue(), ALT.getValue(), null);
 try {
     ImageIO.write(bf, 
             EXTENSAO.getSelectedItem().toString().toLowerCase(), 
             new File(arquivo.getParent() + "/" + arquivo.getName().substring(0, arquivo.getName().length() - 4) + "_REDIMENSIONADA_" + LAR.getValue() + "PX_" + ALT.getValue() + "PX."+EXTENSAO.getSelectedItem().toString().toLowerCase()));
     jTextField1.setText("CLIQUE PARA SELECIONAR A IMAGEM");
     jLabel1.setIcon(null);
 } catch (IOException ex) {
     Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
 }
```
}
}
[/code]

vlw galera, qualquer dúvida sobre o código podem perguntar . . .

flaviomirandadesouza · Abril 26, 2012, 10:27pm

DESCULPEM A DUPLICIDADE DO TÓPICO, QUANDO FUI ADICIONAR DEU UM ERRO NA PÁGINA ENTÃO PENSEI QUE NÃO TIVESSE ADICIONADO O TÓPICO . . .

VLW GALERA . . .

system · Dezembro 29, 2015, 8:10am

Sistema para redimensionar imagens . . . (Código-Fonte + JAR)

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