/*******************************************************************************
* Copyright (c) 2013 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 com.eclipsesource.tabris.widgets;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.ScrolledComposite;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import com.eclipsesource.tabris.test.util.TabrisEnvironment;
public class ScrollingCompositeTest {
@Rule
public TabrisEnvironment environment = new TabrisEnvironment();
private Shell shell;
@Before
public void setUp() {
Display display = new Display();
shell = new Shell( display );
}
@Test( expected = IllegalArgumentException.class )
public void testFailsWithNullParent() {
new ScrollingComposite( null, SWT.H_SCROLL );
}
@Test
public void testUsesScrolledCompositeAsParent() {
ScrollingComposite composite = new ScrollingComposite( shell, SWT.H_SCROLL );
Composite parent = composite.getParent();
assertTrue( parent instanceof ScrolledComposite );
}
@Test
public void testExpandsHorizontal() {
ScrollingComposite composite = new ScrollingComposite( shell, SWT.H_SCROLL );
ScrolledComposite scrolledComposite = ( ScrolledComposite )composite.getParent();
boolean expandHorizontal = scrolledComposite.getExpandHorizontal();
assertTrue( expandHorizontal );
}
@Test
public void testExpandsVertical() {
ScrollingComposite composite = new ScrollingComposite( shell, SWT.H_SCROLL );
ScrolledComposite scrolledComposite = ( ScrolledComposite )composite.getParent();
boolean expandVertical = scrolledComposite.getExpandVertical();
assertTrue( expandVertical );
}
@Test
public void testDelegatesLayoutData() {
ScrollingComposite composite = new ScrollingComposite( shell, SWT.H_SCROLL );
ScrolledComposite scrolledComposite = ( ScrolledComposite )composite.getParent();
GridData data = new GridData();
composite.setLayoutData( data );
assertSame( data, scrolledComposite.getLayoutData() );
}
@Test
public void testSetsVerticalAndHorizontalMinSize() {
ScrollingComposite composite = new ScrollingComposite( shell, SWT.H_SCROLL | SWT.V_SCROLL );
ScrolledComposite scrolledComposite = ( ScrolledComposite )composite.getParent();
scrolledComposite.setBounds( 0, 0, 200, 300 );
Point size = composite.computeSize( SWT.DEFAULT, SWT.DEFAULT );
int minWidth = scrolledComposite.getMinWidth();
int minHeight = scrolledComposite.getMinHeight();
assertEquals( size.x, minWidth );
assertEquals( size.y, minHeight );
}
@Test
public void testSetsHorizontalMinSize() {
ScrollingComposite composite = new ScrollingComposite( shell, SWT.H_SCROLL );
ScrolledComposite scrolledComposite = ( ScrolledComposite )composite.getParent();
scrolledComposite.setBounds( 0, 0, 200, 300 );
Point size = composite.computeSize( SWT.DEFAULT, SWT.DEFAULT );
int minWidth = scrolledComposite.getMinWidth();
int minHeight = scrolledComposite.getMinHeight();
assertEquals( size.x, minWidth );
assertEquals( 0, minHeight );
}
@Test
public void testSetsHorizontalMinSizeOnResize() {
ScrollingComposite composite = new ScrollingComposite( shell, SWT.H_SCROLL );
ScrolledComposite scrolledComposite = ( ScrolledComposite )composite.getParent();
scrolledComposite.setSize( 100, 100 );
Point size = composite.computeSize( SWT.DEFAULT, SWT.DEFAULT );
int minWidth = scrolledComposite.getMinWidth();
int minHeight = scrolledComposite.getMinHeight();
assertEquals( size.x, minWidth );
assertEquals( 0, minHeight );
}
@Test
public void testSetsVerticalMinSize() {
ScrollingComposite composite = new ScrollingComposite( shell, SWT.V_SCROLL );
ScrolledComposite scrolledComposite = ( ScrolledComposite )composite.getParent();
scrolledComposite.setBounds( 0, 0, 200, 300 );
Point size = composite.computeSize( SWT.DEFAULT, SWT.DEFAULT );
int minWidth = scrolledComposite.getMinWidth();
int minHeight = scrolledComposite.getMinHeight();
assertEquals( 200, minWidth );
assertEquals( size.y, minHeight );
}
@Test
public void testSetsVerticalMinSizeOnResize() {
ScrollingComposite composite = new ScrollingComposite( shell, SWT.V_SCROLL );
ScrolledComposite scrolledComposite = ( ScrolledComposite )composite.getParent();
scrolledComposite.setSize( 100, 100 );
Point size = composite.computeSize( SWT.DEFAULT, SWT.DEFAULT );
int minWidth = scrolledComposite.getMinWidth();
int minHeight = scrolledComposite.getMinHeight();
assertEquals( 100, minWidth );
assertEquals( size.y, minHeight );
}
@Test
public void testRevealsItem() {
shell.setSize( 100, 100 );
shell.setLayout( new FillLayout() );
ScrollingComposite composite = new ScrollingComposite( shell, SWT.V_SCROLL );
composite.setLayout( new RowLayout( SWT.VERTICAL ) );
createChildren( composite );
Control child = composite.getChildren()[ 80 ];
composite.reveal( child );
assertTrue( composite.isRevealed( child ) );
}
@Test
public void testIsNotRevealedByDefault() {
shell.setSize( 100, 100 );
shell.setLayout( new FillLayout() );
ScrollingComposite composite = new ScrollingComposite( shell, SWT.V_SCROLL );
composite.setLayout( new RowLayout( SWT.VERTICAL ) );
createChildren( composite );
Control child = composite.getChildren()[ 80 ];
shell.layout( true, true );
boolean revealed = composite.isRevealed( child );
assertFalse( revealed );
}
private void createChildren( ScrollingComposite composite ) {
for( int i = 0; i < 100; i++ ) {
Label label = new Label( composite, SWT.NONE );
label.setText( "FooBar" );
}
}
@Test( expected = IllegalArgumentException.class )
public void testRevealFailsWithNullControl() {
ScrollingComposite composite = new ScrollingComposite( shell, SWT.V_SCROLL );
composite.reveal( null );
}
@Test( expected = IllegalArgumentException.class )
public void testIsRevealFailsWithNullControl() {
ScrollingComposite composite = new ScrollingComposite( shell, SWT.V_SCROLL );
composite.isRevealed( null );
}
@Test( expected = IllegalArgumentException.class )
public void testRevealFailsWithNonChild() {
ScrollingComposite composite = new ScrollingComposite( shell, SWT.V_SCROLL );
Composite control = new Composite( shell, SWT.NONE );
composite.reveal( control );
}
@Test( expected = IllegalArgumentException.class )
public void testIsRevealFailsWithNonChild() {
ScrollingComposite composite = new ScrollingComposite( shell, SWT.V_SCROLL );
Composite control = new Composite( shell, SWT.NONE );
composite.isRevealed( control );
}
@Test
public void testDisposesScrolledComposite() {
ScrollingComposite composite = new ScrollingComposite( shell, SWT.V_SCROLL );
ScrolledComposite scrolledComposite = ( ScrolledComposite )composite.getParent();
composite.dispose();
assertTrue( composite.isDisposed() );
assertTrue( scrolledComposite.isDisposed() );
}
@Test
public void testDoubleDisposingDoesNotFail() {
ScrollingComposite composite = new ScrollingComposite( shell, SWT.V_SCROLL );
composite.dispose();
composite.dispose();
}
@Test
public void testComputeSizeIsNeverNull() {
ScrollingComposite composite = new ScrollingComposite( shell, SWT.NONE );
Point size = composite.computeSize( SWT.DEFAULT, SWT.DEFAULT );
assertNotNull( size );
}
@Test
public void testReturnsSettedLayoutData() {
ScrollingComposite composite = new ScrollingComposite( shell, SWT.NONE );
GridData gridData = new GridData();
composite.setLayoutData( gridData );
Object layoutData = composite.getLayoutData();
assertSame( gridData, layoutData );
}
}