Руководство Java SWT FillLayout
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FillLayout это самый простой класс layout. Он ставит управление (controls) в единственную строку или столбец, и заставляет их иметь одинаковый размер.
Горизонтальный FillLayout:

Вертикальный FillLayout:

// Create a Horizontal FillLayout. FillLayout fillLayout= new FillLayout(SWT.HORIZONTAL); // Set Layout for component component.setLayout(fillLayout); // Create a Vertical FillLayout. FillLayout fillLayout= new FillLayout(SWT.VERTICAL); // Set Layout for component component.setLayout(fillLayout);
margin & spacing

FillLayout fillLayout= new FillLayout(SWT.HORIZONTAL); fillLayout.marginHeight= 20; fillLayout.marginWidth= 20; fillLayout.spacing=15;
Пример горизонтального FillLayout:

HorizontalFillLayoutDemo.java
package org.o7planning.swt.filllayout; import org.eclipse.swt.SWT; import org.eclipse.swt.layout.FillLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell; public class HorizontalFillLayoutDemo { public static void main(String[] args) { Display display = new Display(); Shell shell = new Shell(display); shell.setText("SWT FillLayout (o7planning.org)"); // Create a Horizontal FillLayout. FillLayout fillLayout= new FillLayout(SWT.HORIZONTAL); shell.setLayout(fillLayout); Button button1= new Button(shell, SWT.NONE); button1.setText("Button 1"); Button button2= new Button(shell, SWT.NONE); button2.setText("Button 2"); Button button3= new Button(shell, SWT.NONE); button3.setText("Button 3"); shell.setSize(400, 250); shell.open(); while (!shell.isDisposed()) { if (!display.readAndDispatch()) display.sleep(); } display.dispose(); } }
Например горизонтальный FillLayout с margin & spacing:

HorizontalFillLayoutDemo2.java
package org.o7planning.swt.filllayout; import org.eclipse.swt.SWT; import org.eclipse.swt.layout.FillLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell; public class HorizontalFillLayoutDemo2 { public static void main(String[] args) { Display display = new Display(); Shell shell = new Shell(display); shell.setText("SWT FillLayout (o7planning.org)"); FillLayout fillLayout= new FillLayout(SWT.HORIZONTAL); fillLayout.marginHeight= 20; fillLayout.marginWidth= 20; fillLayout.spacing=15; shell.setLayout(fillLayout); Button button1= new Button(shell, SWT.NONE); button1.setText("Button 1"); Button button2= new Button(shell, SWT.NONE); button2.setText("Button 2"); Button button3= new Button(shell, SWT.NONE); button3.setText("Button 3"); shell.setSize(400, 250); shell.open(); while (!shell.isDisposed()) { if (!display.readAndDispatch()) display.sleep(); } display.dispose(); } }