/*******************************************************************************
* Copyright (c) 2009 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
* Zend Technologies
*******************************************************************************/
package org.eclipse.php.internal.ui.wizards.fields;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.php.internal.ui.util.PixelConverter;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
public class LayoutUtil {
/**
* Creates a composite and fills in the given editors.
*
* @param labelOnTop
* Defines if the label of all fields should be on top of the
* fields
*/
public static void doDefaultLayout(final Composite parent,
final DialogField[] editors, final boolean labelOnTop) {
doDefaultLayout(parent, editors, labelOnTop, 0, 0);
}
/**
* Creates a composite and fills in the given editors.
*
* @param labelOnTop
* Defines if the label of all fields should be on top of the
* fields
* @param marginWidth
* The margin width to be used by the composite
* @param marginHeight
* The margin height to be used by the composite
*/
public static void doDefaultLayout(final Composite parent,
final DialogField[] editors, final boolean labelOnTop,
final int marginWidth, final int marginHeight) {
int nCulumns = getNumberOfColumns(editors);
final Control[][] controls = new Control[editors.length][];
for (int i = 0; i < editors.length; i++)
controls[i] = editors[i].doFillIntoGrid(parent, nCulumns);
if (labelOnTop) {
nCulumns--;
modifyLabelSpans(controls, nCulumns);
}
GridLayout layout = null;
if (parent.getLayout() instanceof GridLayout)
layout = (GridLayout) parent.getLayout();
else
layout = new GridLayout();
if (marginWidth != SWT.DEFAULT)
layout.marginWidth = marginWidth;
if (marginHeight != SWT.DEFAULT)
layout.marginHeight = marginHeight;
layout.numColumns = nCulumns;
parent.setLayout(layout);
}
public static int getButtonWidthHint(final Button button) {
button.setFont(JFaceResources.getDialogFont());
final PixelConverter converter = new PixelConverter(button);
final int widthHint = converter
.convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_WIDTH);
return Math.max(widthHint, button.computeSize(SWT.DEFAULT, SWT.DEFAULT,
true).x);
}
/**
* Calculates the number of columns needed by field editors
*/
public static int getNumberOfColumns(final DialogField[] editors) {
int nCulumns = 0;
for (int i = 0; i < editors.length; i++)
nCulumns = Math.max(editors[i].getNumberOfControls(), nCulumns);
return nCulumns;
}
private static void modifyLabelSpans(final Control[][] controls,
final int nCulumns) {
for (int i = 0; i < controls.length; i++)
setHorizontalSpan(controls[i][0], nCulumns);
}
/**
* Sets the heightHint hint of a control. Assumes that GridData is used.
*/
public static void setHeightHint(final Control control, final int heightHint) {
final Object ld = control.getLayoutData();
if (ld instanceof GridData)
((GridData) ld).heightHint = heightHint;
}
/**
* Sets the horizontal grabbing of a control to true. Assumes that GridData
* is used.
*/
public static void setHorizontalGrabbing(final Control control) {
final Object ld = control.getLayoutData();
if (ld instanceof GridData)
((GridData) ld).grabExcessHorizontalSpace = true;
}
/**
* Sets the horizontal indent of a control. Assumes that GridData is used.
*/
public static void setHorizontalIndent(final Control control,
final int horizontalIndent) {
final Object ld = control.getLayoutData();
if (ld instanceof GridData)
((GridData) ld).horizontalIndent = horizontalIndent;
}
/**
* Sets the span of a control. Assumes that GridData is used.
*/
public static void setHorizontalSpan(final Control control, final int span) {
final Object ld = control.getLayoutData();
if (ld instanceof GridData)
((GridData) ld).horizontalSpan = span;
else if (span != 1) {
final GridData gd = new GridData();
gd.horizontalSpan = span;
control.setLayoutData(gd);
}
}
/**
* Sets the width hint of a control. Assumes that GridData is used.
*/
public static void setWidthHint(final Control control, final int widthHint) {
final Object ld = control.getLayoutData();
if (ld instanceof GridData)
((GridData) ld).widthHint = widthHint;
}
}