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/*******************************************************************************
* Copyright (c) 2006 Sybase, Inc. 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:
* Sybase, Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.jsf.common.ui.internal.dialogfield;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.ui.forms.widgets.FormToolkit;
/**
* Dialog field describing a separator.
*/
public class Separator extends DialogFieldBase {
private Label _separator;
private int _style;
public Separator() {
this(SWT.NONE);
}
/**
* @param style
* of the separator. See <code>Label</code> for possible
* styles.
*/
public Separator(int style) {
_style = style;
}
// ------- layout helpers
/**
* Creates the separator and fills it in a MGridLayout.
*
* @param height
* The heigth of the separator
*/
public Control[] doFillIntoGrid(FormToolkit toolkit, Composite parent,
int nColumns, int height) {
assertEnoughColumns(nColumns);
Control separator = getSeparator(toolkit, parent);
separator.setLayoutData(gridDataForSeperator(nColumns, height));
return new Control[] { separator };
}
/*
* @see DialogField#doFillIntoGrid
*/
public Control[] doFillIntoGrid(FormToolkit toolkit, Composite parent,
int nColumns) {
return doFillIntoGrid(toolkit, parent, nColumns, 4);
}
/*
* @see DialogField#getNumberOfControls
*/
public int getNumberOfControls() {
return 1;
}
protected static GridData gridDataForSeperator(int span, int height) {
GridData gd = new GridData();
gd.horizontalAlignment = GridData.FILL;
gd.verticalAlignment = GridData.BEGINNING;
gd.heightHint = height;
gd.horizontalSpan = span;
return gd;
}
// ------- ui creation
/**
* Creates or returns the created separator.
*
* @param parent
* The parent composite or <code>null</code> if the widget has
* already been created.
*/
public Control getSeparator(FormToolkit toolkit, Composite parent) {
if (_separator == null) {
assertCompositeNotNull(parent);
if (toolkit != null) {
_separator = toolkit.createSeparator(parent, _style);
} else {
_separator = new Label(parent, _style);
}
}
return _separator;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jst.jsf.common.ui.internal.dialogfield.DialogField#handleGrabHorizontal()
*/
public void handleGrabHorizontal() {
// do nothing.
}
}
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