how to set action event

[Roldan Baldo]

   
import java.awt.BorderLayout;
import java.awt.image.BufferedImage;
/**
 *
 * @author BHADZ
 */
public class imageFinalize extends javax.swing.JDialog {

    BufferedImage origImage;
    BufferedImage tempImageSize;
    BufferedImage imageResizable;
    BufferedImage cropImage;

    /** Creates new form imageFinalize */
    public imageFinalize(java.awt.Frame parent, boolean modal, BufferedImage origImage) {
        super(parent, modal);
        initComponents();
        this.origImage = origImage;
        tempImageSize = null;
        cropImage = null;
        imageResizable = null;
        layImage(origImage);        
    }

    private void layImage(BufferedImage initImage){
        javax.swing.ImageIcon imageBack = new javax.swing.ImageIcon(initImage);
        javax.swing.JLabel background = new javax.swing.JLabel(imageBack);
        background.setBounds(0, 0, imageBack.getIconWidth(), imageBack.getIconHeight());
        jPanel2.add(background,BorderLayout.CENTER);
    }

    /** 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")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
    private void initComponents() {

        jPanel1 = new javax.swing.JPanel();
        jPanel2 = new javax.swing.JPanel();
        jPanel3 = new javax.swing.JPanel();
        jButton1 = new javax.swing.JButton();
        jButton2 = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);

        jPanel2.setBorder(javax.swing.BorderFactory.createEtchedBorder());

        javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
        jPanel2.setLayout(jPanel2Layout);
        jPanel2Layout.setHorizontalGroup(
            jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 405, Short.MAX_VALUE)
        );
        jPanel2Layout.setVerticalGroup(
            jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 350, Short.MAX_VALUE)
        );

        jPanel3.setBorder(javax.swing.BorderFactory.createTitledBorder("Resize"));

        jButton1.setText("UP");

        jButton2.setText("DOWN");
        jButton2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton2ActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout jPanel3Layout = new javax.swing.GroupLayout(jPanel3);
        jPanel3.setLayout(jPanel3Layout);
        jPanel3Layout.setHorizontalGroup(
            jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel3Layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                    .addComponent(jButton2, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 80, Short.MAX_VALUE)
                    .addComponent(jButton1, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 80, Short.MAX_VALUE))
                .addContainerGap())
        );
        jPanel3Layout.setVerticalGroup(
            jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel3Layout.createSequentialGroup()
                .addComponent(jButton1)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jButton2)
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );

        javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jPanel3, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap())
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jPanel3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addContainerGap(73, Short.MAX_VALUE))
        );

        getContentPane().add(jPanel1, java.awt.BorderLayout.CENTER);

        java.awt.Dimension screenSize = java.awt.Toolkit.getDefaultToolkit().getScreenSize();
        setBounds((screenSize.width-563)/2, (screenSize.height-465)/2, 563, 465);
    }// </editor-fold>                        

    private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {                                         
        tempImageSize = origImage;
        double w = tempImageSize.getWidth();
        double h = tempImageSize.getHeight();
        //double imageSize[] = {1,.9,.8,.7,.6,.5,.4,.3,.2};
        double tempImageRes = .9;
        imageResizable = Methods.createResizedCopy(tempImageSize, w*tempImageRes, h*tempImageRes, rootPaneCheckingEnabled);                
    }                                        
    
    // Variables declaration - do not modify                     
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JPanel jPanel2;
    private javax.swing.JPanel jPanel3;
    // End of variables declaration                   
}

the imageResizable variable is changing its values but the effect is not changed, the picture is the same,.. i get the value of imageResizable after it resizes and it return
a smaller image. but when i click the button it doesnt take its effect.

[Rob Spoor]

I never see you use it. If I do a search on your code I find 3 occurrences: the declaration, the initialization to null and the setting in the action performed method.

[Roldan Baldo]

im sorry i forgot to write the last 2 lines there. and it works now. but i have a little problem about the picture

    
public static BufferedImage createResizedCopy(Image originalImage,
                                    double scaledWidth,
                                    double scaledHeight,
                                    boolean preserveAlpha) {
        int imageType = preserveAlpha ? BufferedImage.TYPE_INT_RGB : BufferedImage.TYPE_INT_ARGB;
        BufferedImage scaledBI = new BufferedImage((int)scaledWidth, (int)scaledHeight, imageType);
        Graphics2D g = scaledBI.createGraphics();
        if (preserveAlpha) {
            g.setComposite(AlphaComposite.Src);
        }
        g.drawImage(originalImage, 0, 0, (int)scaledWidth, (int)scaledHeight, null);
        g.dispose();
        return scaledBI;
    }

when i performed this method im going to resize the picture into smaller, it seems that the picture is more pixeleted, unlike the orig one. the pic became ugly, did i miss something about manipulating images using BufferedImage?