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/*******************************************************************************
* Copyright (c) 2005, 2006 IBM Corporation 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:
* IBM Corporation - initial API and implementation
* Jens Lukowski/Innoopract - initial renaming/restructuring
* Oracle - adapted for JSF tooling
*
*******************************************************************************/
package org.eclipse.jst.jsf.ui.internal.preferences;
import org.eclipse.jface.preference.PreferencePage;
import org.eclipse.jst.jsf.ui.internal.Messages;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.ScrolledComposite;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPreferencePage;
/**
* The empty pref page used as the root of all other JSF feature preference pages
* under the Web&XML top-level pref page
*
* @author cbateman
*
*/
public class EmptyRootPreferencePage extends PreferencePage implements IWorkbenchPreferencePage {
private Composite createComposite(Composite parent, int numColumns) {
noDefaultAndApplyButton();
Composite composite = new Composite(parent, SWT.NULL);
// GridLayout
GridLayout layout = new GridLayout();
layout.numColumns = numColumns;
composite.setLayout(layout);
// GridData
GridData data = new GridData(GridData.FILL);
data.horizontalIndent = 0;
data.verticalAlignment = GridData.FILL;
data.horizontalAlignment = GridData.FILL;
composite.setLayoutData(data);
return composite;
}
protected Control createContents(Composite parent) {
Composite composite = createScrolledComposite(parent);
String description = Messages.JSFPreferences_RootPage_Description;
Text text = new Text(composite, SWT.READ_ONLY);
// some themes on GTK have different background colors for Text and Labels
text.setBackground(composite.getBackground());
text.setText(description);
setSize(composite);
return composite;
}
private Composite createScrolledComposite(Composite parent) {
// create scrollbars for this parent when needed
final ScrolledComposite sc1 = new ScrolledComposite(parent, SWT.H_SCROLL | SWT.V_SCROLL);
sc1.setLayoutData(new GridData(GridData.FILL_BOTH));
Composite composite = createComposite(sc1, 1);
sc1.setContent(composite);
// not calling setSize for composite will result in a blank composite,
// so calling it here initially
// setSize actually needs to be called after all controls are created,
// so scrolledComposite
// has correct minSize
setSize(composite);
return composite;
}
public void init(IWorkbench workbench) {
// do nothing
}
private void setSize(Composite composite) {
if (composite != null) {
// Note: The font is set here in anticipation that the class inheriting
// this base class may add widgets to the dialog. setSize
// is assumed to be called just before we go live.
applyDialogFont(composite);
Point minSize = composite.computeSize(SWT.DEFAULT, SWT.DEFAULT);
composite.setSize(minSize);
// set scrollbar composite's min size so page is expandable but
// has scrollbars when needed
if (composite.getParent() instanceof ScrolledComposite) {
ScrolledComposite sc1 = (ScrolledComposite) composite.getParent();
sc1.setMinSize(minSize);
sc1.setExpandHorizontal(true);
sc1.setExpandVertical(true);
}
}
}
}
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