/*******************************************************************************
* Copyright (c) 2009 EclipseSource and others. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* EclipseSource - initial API and implementation
******************************************************************************/
package org.eclipse.rap.examples.pages;
import org.eclipse.rap.examples.IExamplePage;
import org.eclipse.rwt.graphics.Graphics;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;
public class FillLayoutExample implements IExamplePage {
private static final Color BG_COLOR = Graphics.getColor( 220, 220, 200 );
private Composite parent;
private int propSpacing = 5;
private boolean propPrefSize;
private Composite layoutArea;
public void createControl( final Composite parent ) {
this.parent = parent;
parent.setLayout( ExampleUtil.createGridLayout( 1, false, 10, 10 ) );
createLayoutArea();
createControlButtons( parent );
}
private void createLayoutArea() {
if( layoutArea == null ) {
layoutArea = new Composite( parent, SWT.NONE );
GridData layoutData = new GridData( SWT.FILL, SWT.FILL, true, true );
layoutArea.setLayoutData( layoutData );
FillLayout layout = new FillLayout();
layout.spacing = 10;
layoutArea.setLayout( layout );
}
Control[] children = layoutArea.getChildren();
for( int i = 0; i < children.length; i++ ) {
children[ i ].dispose();
}
createLayoutComp( layoutArea, SWT.HORIZONTAL );
createLayoutComp( layoutArea, SWT.VERTICAL );
layoutArea.layout();
}
private void createLayoutComp( final Composite parent, final int style ) {
Composite composite = new Composite( parent, SWT.NONE );
composite.setLayout( ExampleUtil.createGridLayout( 1, false ) );
String orientString = style == SWT.VERTICAL ? "Vertical" : "Horizontal";
new Label( composite, SWT.NONE ).setText( orientString + " FillLayout" );
Composite layoutComp = new Composite( composite, SWT.BORDER );
if( !propPrefSize ) {
layoutComp.setLayoutData( new GridData( SWT.FILL, SWT.FILL, true, true ) );
}
FillLayout layout = new FillLayout( style );
layout.marginWidth = 5;
layout.marginHeight = 5;
layout.spacing = propSpacing;
layoutComp.setLayout( layout );
int count = style == SWT.VERTICAL ? 2 : 3;
for( int i = 0; i < count ; i++ ) {
Composite childComp = new Composite( layoutComp, SWT.BORDER );
childComp.setBackground( BG_COLOR );
}
}
private void createControlButtons( final Composite parent ) {
Group group = new Group( parent, SWT.NONE );
GridData gridData = new GridData( SWT.FILL, SWT.TOP, true, false );
gridData.horizontalSpan = 2;
group.setLayoutData( gridData );
group.setLayout( ExampleUtil.createGridLayout( 1, false, 5, 2 ) );
Composite spacingComp = new Composite( group, SWT.NONE );
RowLayout spacingLayout = new RowLayout();
spacingLayout.spacing = 5;
spacingLayout.center = true;
spacingComp.setLayout( spacingLayout );
new Label( spacingComp, SWT.NONE ).setText( "Set spacing:" );
final Spinner spacingSpinner
= new Spinner( spacingComp, SWT.READ_ONLY | SWT.BORDER );
spacingSpinner.setMaximum( 12 );
spacingSpinner.setSelection( propSpacing );
spacingSpinner.addSelectionListener( new SelectionAdapter() {
public void widgetSelected( final SelectionEvent e ) {
propSpacing = spacingSpinner.getSelection();
createLayoutArea();
}
} );
final Button preferredSizeButton = new Button( group, SWT.CHECK );
preferredSizeButton.setText( "Shrink containers to their preferred size" );
preferredSizeButton.addSelectionListener( new SelectionAdapter() {
public void widgetSelected( final SelectionEvent e ) {
propPrefSize = preferredSizeButton.getSelection();
createLayoutArea();
}
} );
}
}