Listing Aplikasi Image Viewer ( Pertemuan 6 )

DESAIN

1.  SOURCE untuk CLASS Fgambar

package pmodul6;

import java.awt.Image;

import javax.swing.*;

import java.io.*;

import javax.swing.filechooser.FileFilter;

public class FGambar extends javax.swing.JFrame {

    DefaultListModel gambar;

    final String[] EXT = {".jpg", ".jpeg", ".gif", ".tiff", ".png"};

    public FGambar() {

        initComponents();

        gambar = new DefaultListModel();

        lstDaftar.setModel(gambar);

private void btnPilihActionPerformed(java.awt.event.ActionEvent evt) {                                        

        JFileChooser fc = new JFileChooser();

        fc.addChoosableFileFilter(new JenisFile(EXT));

        int hasil = fc.showOpenDialog(this);

        if (hasil == JFileChooser.APPROVE_OPTION) {

            File file = fc.getSelectedFile();

            String nf = file.getAbsolutePath();

         gambar.addElement(nf);        }    }

private void btnHapusActionPerformed(java.awt.event.ActionEvent evt) {                                        

        int index = lstDaftar.getSelectedIndex();

        gambar.remove(index);

        lblGambar.setIcon(null); }  

private void lstDaftarMouseClicked(java.awt.event.MouseEvent evt) {                                      

      String nf = lstDaftar.getSelectedValue().toString();

          ImageIcon gbr = new ImageIcon(nf);

        if (chkFit.isSelected())

            gbr = new ImageIcon(gbr.getImage().getScaledInstance(200,

                                        -1, Image.SCALE_DEFAULT));

        lblGambar.setIcon(gbr);        }  

Tambahan

private void chkFitMouseClicked(java.awt.event.MouseEvent evt) {         String nf = lstDaftar.getSelectedValue().toString();           ImageIcon gbr = new ImageIcon(nf);         if (chkFit.isSelected())             gbr = new ImageIcon(gbr.getImage().getScaledInstance(200,                                         -1, Image.SCALE_DEFAULT));         lblGambar.setIcon(gbr);      }

Hasil Running Program

Sebelum dipilih fit lebar

Sesudah dipilih fit lebar

2.  SOURCE untuk CLASS JenisFile

package pmodul6;

import javax.swing.filechooser.FileFilter;

import java.io.*;

public class JenisFile extends FileFilter {

    private String[] s;

    public JenisFile(String[] sArgs) {

        s = sArgs;    }

    public boolean accept(File fArg) {

        if (fArg.isDirectory())

            return true;

        for (int i = 0; i < s.length; ++i)

            if (fArg.getName().toLowerCase().indexOf(s[i].toLowerCase()) > 0)

                return true;

        return false;  }

    public String getDescription() {

        String tmp = "";

        for (int i = 0; i<s.length; ++i)

            tmp += "*" + s[i] + " ";

        return tmp;    } }