Java Swing - ImageToPdf

 Java Swing - ImageToPdf

package jlib5.app;

import com.formdev.flatlaf.FlatLightLaf;
import jlib5.java.FileApi;
import jlib5.java.PdfApi;
import jlib5.java.Runnable1;
import jlib5.swing.Frame;
import jlib5.swing.Drop;
import jlib5.swing.Swing;
import jlib5.swing.Table;
import java.io.File;
import javax.swing.JComponent;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;

public class ImageToPdf {

    String[] columns = { "Type", "Path", "Size", "Status" };
    int[] widths = { 100, 200, 100, 100};
    int[] aligns = { 0, -1, 1, 0 };
    
    Frame frame;
    Table list;
    JLabel status;
    
    public static void main(String[] args) {
        FlatLightLaf.setup();
        new ImageToPdf();
    }

    public ImageToPdf() {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                 start();
            }
        });
    }
    
    void start() {
        frame = new Frame("ImageToPdf");
        frame.setTop( getMenuBar() );
        frame.setCenter( (list = new Table(columns, widths, aligns, null)).layout  );
        frame.setBottom(Swing.getHbox(Swing.HExpand( status = new JLabel("Ready")),  Swing.getButton("Run", null, this::runHandler) ) );
        setDrop( list.ctrl, this::dropHandler );
        frame.show(460,300);
    }

    public void setDrop(JComponent node, Runnable1 handler) {
        node.setTransferHandler( new Drop(handler) );
    }
    
    public JMenuItem getMenuItem( String name, Runnable handler ) {
        JMenuItem item = new JMenuItem(name);
        item.addActionListener( (e) -> handler.run() );
        return item;
    }
    public JMenu getFileMenu() {
        JMenu menu = new JMenu("File");
        menu.add(getMenuItem( "Exit", () -> { System.exit(0); } ));
        return menu;
    }
    public JMenuBar getMenuBar() {
        JMenuBar menubar = new JMenuBar();
        menubar.add(getFileMenu());
        return menubar;
    }    
    
    void dropHandler(Object...obj) {
        java.util.List<File> files = (java.util.List<File>) obj[0];
        for( File f : files ) {
            if( f.isFile() ) {
                list.addRow( new Object[] { "File", f.getAbsolutePath(), f.length(), "Ready" } );
            } else {
                list.addRow( new Object[] { "Dir", f.getAbsolutePath(), FileApi.getFileSize2(f.getAbsolutePath()), "Ready" } );
            }
        }
    }
    
    void runHandler() {
        new Thread( () -> {
            for( int i = 0; i < list.getRowCount(); i++ ) {
                try {
                    final int index = i;
                    Object[] row = list.getRow(i);
                    String fname = (String)row[1];
                    if( new File(fname).isFile() ) {
                        PdfApi.imageZipToPdf(fname, fname + ".pdf", null, (e) -> {
                            final String progress =  "" + ((int)e[0] * 100 / (int)e[1]) + "%";
                            Swing.runLater( () -> list.setValue( index, 3, progress) );
                            Swing.runLater( () -> status.setText( "" + (index+1) + " / " +  list.getRowCount() + " (" + progress + ")" ) );
                        });
                    } else {
                        PdfApi.imageDirToPdf(fname, fname + ".pdf", null, (e) -> {
                            final String progress =  "" + ((int)e[0] * 100 / (int)e[1]) + "%";
                            Swing.runLater( () -> list.setValue( index,  3, progress) );
                            Swing.runLater( () -> status.setText( "" + (index+1) + " / " +  list.getRowCount() + " (" + progress + ")" ) );
                        });
                    }
                    System.out.println( "" + row[0] + " " + row[1] );
                    Swing.runLater( () -> list.setValue( index, 3, "OK") );
                    
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
            Swing.runLater( () -> status.setText( "Ready" ) );
        }).start();
    }
}