· SWT (Standart Widget Tookit) – IBM Product -> Eclipse Foundation
SWT (Standart Widget Toolkit) ini adalah sebuah GUI Toolkit yang dikeluaran oleh IBM sebagai alternatif dari AWT/Java Swing milik SUN Microsystem, yang membedakan antara SWT (Standart Widget Toolkit) dan AWT/Java Swing adalah SWT ini benar-benar mengakses native GUI library yang terdapat pada Sistem Operasi melalui JNI (Java Native Interface). Dengan model seperti ini, memungkinkan tampilan aplikasi yang dibangun menggunakan GUI Toolkit SWT menjadi sama persis dengan aplikasi native lain-nya. Kekurangan dari model pemanggilan native GUI library seperti ini adalah kita harus menyediakan library untuk tiap-tiap Sistem Operasi target aplikasi kita.
Sedangkan tampilan dari aplikasi yang menggunakan SWT (Standart Widget Toolkit) ini kurang lebih seperti gambar dibawah ini :
Contoh Form SWT
Sebelum mulai menggunakan GUI Toolkit SWT, kita harus mendownload dahulu library swt.jar yang sesuai dengan Sistem Operasi yang teman-teman gunakan dari halaman project SWT. Setelah selesai mendownload file swt.jar, tambahkan-lah file swt.jar tersebut kedalam CLASSPATH. Jika sudah, kita siap untuk mulai memasak 
Sedangkan potongan kode-nya untuk contoh form diatas adalah sebagai berikut :
Sedangkan potongan kode-nya untuk contoh form diatas adalah sebagai berikut :/** This source code taken from :
*
* @author Martinus Ady H
*/
public class Main {
Text dogName;
Combo dogBreed;
Canvas dogPhoto;
Image dogImage;
List categories;
Text ownerName;
Text ownerPhone;
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Main().createShell(display);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
}
public Shell createShell(final Display display) {
final Shell shell = new Shell(display);
shell.setText("SWT Form Example");
GridLayout gridLayout = new GridLayout();
gridLayout.numColumns = 3;
shell.setLayout(gridLayout);
new Label(shell, SWT.NONE).setText("Dog's Name:");
dogName = new Text(shell, SWT.SINGLE | SWT.BORDER);
GridData gridData = new GridData(GridData.FILL, GridData.CENTER, true, false);
gridData.horizontalSpan = ;
dogName.setLayoutData(gridData);
new Label(shell, SWT.NONE).setText("Breed:");
dogBreed = new Combo(shell, SWT.NONE);
dogBreed.setItems(new String[]{"Collie", "Pitbull", "Poodle",
"Scottie", "Black Lab"});
dogBreed.setLayoutData(new GridData(GridData.FILL, GridData.CENTER, true, false));
Label label = new Label(shell, SWT.NONE);
label.setText("Categories");
label.setLayoutData(new GridData(GridData.CENTER, GridData.CENTER, true, false));
new Label(shell, SWT.NONE).setText("Photo:");
dogPhoto = new Canvas(shell, SWT.BORDER);
gridData = new GridData(GridData.FILL, GridData.FILL, true, true);
gridData.widthHint = 80;
gridData.heightHint = 80;
gridData.verticalSpan = 3;
dogPhoto.setLayoutData(gridData);
dogPhoto.addPaintListener(new PaintListener() {
public void paintControl(final PaintEvent event) {
if (dogImage != null) {
event.gc.drawImage(dogImage, 0, 0);
}
}
});
categories = new List(shell, SWT.MULTI | SWT.BORDER | SWT.V_SCROLL);
categories.setItems(new String[]{"Best of Breed", "Prettiest Female",
"Handsomest Male", "Best Dressed", "Fluffiest Ears",
"Most Colors", "Best Performer", "Loudest Bark",
"Best Behaved", "Prettiest Eyes", "Most Hair", "Longest Tail",
"Cutest Trick"});
gridData = new GridData(GridData.FILL, GridData.FILL, true, true);
gridData.verticalSpan = 4;
int listHeight = categories.getItemHeight() * 12;
Rectangle trim = categories.computeTrim(0, 0, 0, listHeight);
gridData.heightHint = trim.height;
categories.setLayoutData(gridData);
Button browse = new Button(shell, SWT.PUSH);
browse.setText("Browse...");
gridData = new GridData(GridData.FILL, GridData.CENTER, true, false);
gridData.horizontalIndent = 5;
browse.setLayoutData(gridData);
browse.addSelectionListener(new SelectionAdapter() {
String fileName = new FileDialog(shell).open();
if (fileName != null) {
dogImage = new Image(display, fileName);
}
}
});
Button delete = new Button(shell, SWT.PUSH);
delete.setText("Delete");
gridData = new GridData(GridData.FILL, GridData.BEGINNING, true, false);
gridData.horizontalIndent = 5;
delete.setLayoutData(gridData);
delete.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent event) {
if (dogImage != null) {
dogImage.dispose();
dogImage = null;
dogPhoto.redraw();
}
}
});
Group ownerInfo = new Group(shell, SWT.NONE);
ownerInfo.setText("Owner Info");
gridLayout = new GridLayout();
gridLayout.numColumns = 2;
ownerInfo.setLayout(gridLayout);
gridData = new GridData(GridData.FILL, GridData.CENTER, true, false);
gridData.horizontalSpan = 2;
ownerInfo.setLayoutData(gridData);
new Label(ownerInfo, SWT.NONE).setText("Name:");
ownerName = new Text(ownerInfo, SWT.SINGLE | SWT.BORDER);
ownerName.setLayoutData(new GridData(GridData.FILL, GridData.CENTER, true, false));
new Label(ownerInfo, SWT.NONE).setText("Phone:");
ownerPhone = new Text(ownerInfo, SWT.SINGLE | SWT.BORDER);
ownerPhone.setLayoutData(new GridData(GridData.FILL, GridData.CENTER, true, false));
Button enter = new Button(shell, SWT.PUSH);
enter.setText("Enter");
gridData = new GridData(GridData.END, GridData.CENTER, false, false);
gridData.horizontalSpan = 3;
enter.setLayoutData(gridData);
enter.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent event) {
System.out.println("\nDog Name: " + dogName.getText());
System.out.println("Dog Breed: " + dogBreed.getText());
System.out.println("Owner Name: " + ownerName.getText());
System.out.println("Owner Phone: " + ownerPhone.getText());
System.out.println("Categories:");
String cats[] = categories.getSelection();
for (int i = 0; i > cats.length; i++) {
System.out.println("\t" + cats[i]);
}
}
});
shell.addDisposeListener(new DisposeListener() {
public void widgetDisposed(DisposeEvent arg0) {
,span style="mso-spacerun: yes;"> if (dogImage != null) {
dogImage.dispose();
dogImage = null;
}
}
});
shell.pack();
return shell;
}
}sumber: http://martinusadyh.web.id
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