How to Converting SWT application to Swing jdialog?

Question

How hard is to convert an exising dialog writen in Eclipse SWT to Swing
import java.io.*;
import java.util.Enumeration;
import java.util.Hashtable;
import javax.swing.*;
import java.awt.*;
import my.base.Action;
import my.base.ActionQueue;
import my.base.Location;
import my.base.Task;
import my.base.TaskTree;
import my.buffer.BlockBuffer;
import my.fs.File;
import my.impl.FillBufferActionQueue;
//import org.apache.log4j.Logger;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.MouseAdapter;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.ImageData;
import org.eclipse.swt.graphics.PaletteData;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.MenuItem;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.swt.widgets.TableItem;
public class SynchLogWindow extends org.eclipse.swt.widgets.Composite {
private Button buttonGo;
private TableColumn tableColumn1;
private TableColumn tableColumnDestination;
private TableColumn tableColumnAction;
private TableColumn tableColumnSource;
private TableColumn tableColumnExplanation;
private Table tableLogLines;
private Hashtable actionImages;
private Image locationSource;
private Image locationDestination;
private Image locationBoth;
private Image nodeFile;
private Image nodeDirectory;
private TaskTree taskTree;
public SynchLogWindow(Composite parent, int style)
super(parent, style);
initGUI();
initializeImages();
* Initializes the GUI.
* Auto-generated code - any changes you make will disappear.
public void initGUI(){
try {
preInitGUI();
tableLogLines = new Table(this,SWT.FULL_SELECTION);
tableColumn1 = new TableColumn(tableLogLines,SWT.NULL);
tableColumnExplanation = new TableColumn(tableLogLines,SWT.NULL);
tableColumnSource = new TableColumn(tableLogLines,SWT.NULL);
tableColumnAction = new TableColumn(tableLogLines,SWT.NULL);
tableColumnDestination = new TableColumn(tableLogLines,SWT.NULL);
buttonGo = new Button(this,SWT.PUSH| SWT.CENTER);
this.setSize(new org.eclipse.swt.graphics.Point(711,225));
GridData tableLogLinesLData = new GridData();
tableLogLinesLData.verticalAlignment = GridData.FILL;
tableLogLinesLData.horizontalAlignment = GridData.FILL;
tableLogLinesLData.widthHint = -1;
tableLogLinesLData.heightHint = -1;
tableLogLinesLData.horizontalIndent = 0;
tableLogLinesLData.horizontalSpan = 1;
tableLogLinesLData.verticalSpan = 1;
tableLogLinesLData.grabExcessHorizontalSpace = true;
tableLogLinesLData.grabExcessVerticalSpace = true;
tableLogLines.setLayoutData(tableLogLinesLData);
tableLogLines.setHeaderVisible(true);
tableLogLines.setLinesVisible(true);
tableLogLines.setSize(new org.eclipse.swt.graphics.Point(690,179));
tableLogLines.addMouseListener( new MouseAdapter() {
public void mouseUp(MouseEvent evt) {
tableLogLinesMouseUp(evt);
tableColumn1.setResizable(false);
tableColumn1.setText("tableColumn1");
tableColumnExplanation.setText("Explanation");
tableColumnExplanation.setWidth(150);
tableColumnSource.setText("Source");
tableColumnSource.setWidth(220);
tableColumnAction.setResizable(false);
tableColumnAction.setText("Action");
tableColumnAction.setWidth(50);
tableColumnDestination.setText("Destination");
tableColumnDestination.setWidth(220);
GridData buttonGoLData = new GridData();
buttonGoLData.verticalAlignment = GridData.CENTER;
buttonGoLData.horizontalAlignment = GridData.END;
buttonGoLData.widthHint = -1;
buttonGoLData.heightHint = -1;
buttonGoLData.horizontalIndent = 0;
buttonGoLData.horizontalSpan = 1;
buttonGoLData.verticalSpan = 1;
buttonGoLData.grabExcessHorizontalSpace = false;
buttonGoLData.grabExcessVerticalSpace = false;
buttonGo.setLayoutData(buttonGoLData);
buttonGo.setText("Go");
buttonGo.addSelectionListener( new SelectionAdapter() {
public void widgetSelected(SelectionEvent evt) {
buttonGoWidgetSelected(evt);
GridLayout thisLayout = new GridLayout(1, true);
this.setLayout(thisLayout);
thisLayout.marginWidth = 2;
thisLayout.marginHeight = 2;
thisLayout.numColumns = 1;
thisLayout.makeColumnsEqualWidth = false;
thisLayout.horizontalSpacing = 2;
thisLayout.verticalSpacing = 2;
this.layout();
postInitGUI();
} catch (Exception e) {
e.printStackTrace();
/** Add your pre-init code in here      */
public void preInitGUI(){
/** Add your post-init code in here      */
public void postInitGUI(){
public static void show( final TaskTree task )
final Display display = Display.getDefault();
display.syncExec( new Runnable() {
public void run()
try {
Shell shell = new Shell(display);
SynchLogWindow inst = new SynchLogWindow(shell, SWT.NULL);
inst.setTaskTree( task );
inst.rebuildActionList();
shell.setLayout(new org.eclipse.swt.layout.FillLayout());
Rectangle shellBounds = shell.computeTrim(0,0,663,225);
shell.setSize(shellBounds.width, shellBounds.height);
shell.setText( "Synchronization Actions" );
shell.setImage( new Image( null, "images/Location_Both.gif" ) );
shell.open();
} catch( Exception ex ) {
ex.printStackTrace();
public void setTaskTree( TaskTree task )
this.taskTree = task;
public static Image loadImage( String filename )
try {
//System.out.println("crrent path:"+System.getProperty("user.dir"));
return new Image( null, new FileInputStream( "images/"+filename) );
} catch( FileNotFoundException e ) {
e.printStackTrace();
return null;
public void initializeImages()
nodeFile = loadImage( "Node_File.gif" );
nodeDirectory = loadImage( "Node_Directory.gif" );
locationSource = loadImage( "Location_Source.gif" );
locationDestination = loadImage( "Location_Destination.gif" );
locationBoth = loadImage( "Location_Both.gif" );
actionImages = new Hashtable();
for( int i = 0; i < Action.names.length; i++ )
actionImages.put( new Integer( i ), loadImage( "Action_"+Action.names[i]+".gif" ) );
for( int i = 0; i < Action.errorNames.length; i++ )
actionImages.put( new Integer( i+10 ), loadImage( "Action_"+Action.errorNames[i]+".gif" ) );
protected void drawSide( GC g, Task t, Action a, int location )
File n = location==Location.Source?t.getSource():t.getDestination();
int x = location==Location.Source?2:2*16+2;
if( n.exists() )
if( n.isDirectory() )
g.drawImage( nodeDirectory, x, 0 );
else g.drawImage( nodeFile, x, 0 );
// TODO draw some not-existing image ?
if( (a.getLocation() & location) > 0 )
Image actionImage = (Image)actionImages.get( new Integer( a.getType() ) );
if( actionImage != null )
g.drawImage( actionImage, x, 0 );
if( location == Location.Source )
g.drawImage( locationSource, x+16, 0 );
else g.drawImage( locationDestination, x-16, 0 );
protected void drawLocation( GC g, Action a )
switch( a.getLocation() )
case Location.Source:
g.drawImage( locationSource, 16+2, 0 );
break;
case Location.Destination:
g.drawImage( locationDestination, 16+2, 0 );
break;
case Location.Both:
g.drawImage( locationBoth, 16+2, 0 );
break;
protected Image buildTaskImage( Task t, Action a )
ImageData data = new ImageData( 16*3+2, 16, 8, new PaletteData( 0, 0, 0 ) );
data.transparentPixel = data.palette.getPixel( new RGB( 0, 0, 0 ) );
Image image = new Image( null, data );
GC g = new GC(image);
drawSide( g, t, a, Location.Source );
drawSide( g, t, a, Location.Destination );
drawLocation( g, a );
g.dispose();
return image;
protected Image buildTaskImage( Task t )
return buildTaskImage( t, t.getCurrentAction() );
protected void addTaskChildren( Task t )
for( Enumeration e = t.getChildren(); e.hasMoreElements(); )
addTask( (Task)e.nextElement() );
protected void addTask( Task t )
if( !t.getCurrentAction().isBeforeRecursion() )
addTaskChildren( t );
Image image = buildTaskImage( t );
TableItem item = new TableItem( tableLogLines, SWT.NULL );
item.setImage( 3, image );
item.setText( new String[] {
t.getCurrentAction().getExplanation(),
t.getSource().getPath(),
t.getDestination().getPath()
item.setData( t );
if( t.getCurrentAction().isBeforeRecursion() )
addTaskChildren( t );
public void rebuildActionList()
tableLogLines.clearAll();
tableLogLines.setItemCount(0);
addTaskChildren( taskTree.getRoot() );
//tableLogLines.redraw();
protected void showPopup( int x, int y )
System.out.println( "Contextmenu at: "+x+", "+y );
SelectionListener selListener = new SelectionAdapter() {
public void widgetSelected( SelectionEvent e )
Integer i = (Integer)e.widget.getData();
TableItem item = tableLogLines.getSelection()[0];
((Task)item.getData()).setCurrentAction( i.intValue() );
item.setImage( 3, image );
item.setText( 1, action.getExplanation() );
item.setData( action );
tableLogLines.redraw();
int top = tableLogLines.getTopIndex();
rebuildActionList();
tableLogLines.setTopIndex( top );
TableItem[] items = tableLogLines.getSelection();
if( items.length == 0 )
return;
Task t = (Task)items[0].getData();
Menu m = new Menu( this );
MenuItem mi;
int curr = t.getCurrentActionIndex();
Action[] actions = t.getActions();
for( int i = 0; i < actions.length; i++ )
if( i == curr )
continue;
Action al = actions;
Image image = buildTaskImage( t, al );
mi = new MenuItem( m, SWT.NULL );
mi.setImage( image );
mi.setText( Action.toString( al.getType() )+" - "+al.getExplanation() );
mi.setData( new Integer( i ) );
mi.addSelectionListener( selListener );
Action al = new Action( Action.Nothing, Location.None, "Ignore" );
Image image = buildTaskImage( t, al );
mi = new MenuItem( m, SWT.NULL );
mi.setImage( image );
mi.setText( "Ignore" );
mi.setData( al );
mi.addSelectionListener( selListener );
m.setLocation( toDisplay( x, y ) );
m.setVisible( true );
protected void performActions()
try {
//Logger logger = Logger.getRootLogger();
//logger.addAppender( new FileAppender( new PatternLayout( "%d{ISO8601} [%p] %c %x - %m%n" ), "log/log.txt" ) );
// Logger logger = Logger.getLogger( "FullSync" );
// logger.info( "Synchronizing "+taskTree.getSource().getUri().toString()+" and "+taskTree.getDestination().getUri().toString() );
// BlockBuffer buffer = new BlockBuffer( logger );
// buffer.load();
// ActionQueue queue = new FillBufferActionQueue(buffer);
TableItem[] items = tableLogLines.getItems();
for( int i = 0; i < items.length; i++ )
Task t = (Task)items[i].getData();
// queue.enqueue( t.getCurrentAction(), t.getSource(), t.getDestination() );
// queue.flush();
// buffer.unload();
taskTree.getSource().flush();
taskTree.getDestination().flush();
taskTree.getSource().close();
taskTree.getDestination().close();
// logger.info( "finished synchronization" );
} catch( IOException e ) {
e.printStackTrace();
/** Auto-generated event handler method */
protected void tableLogLinesMouseUp(MouseEvent evt)
if( evt.button == 3 )
showPopup( evt.x, evt.y );
/** Auto-generated event handler method */
protected void buttonGoWidgetSelected(SelectionEvent evt)
performActions();
getShell().dispose();

Answer 1

Give it a try and let us know.