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/*******************************************************************************
* Copyright (c) 2005, 2012 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.debug.internal.ui.dialogfields;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
public class LayoutUtil {
/**
* Calculates the number of columns needed by field editors
*/
public static int getNumberOfColumns(DialogField[] editors) {
int nCulumns = 0;
for (int i = 0; i < editors.length; i++) {
nCulumns = Math.max(editors[i].getNumberOfControls(), nCulumns);
}
return nCulumns;
}
/**
* 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(Composite parent, DialogField[] editors, boolean labelOnTop) {
doDefaultLayout(parent, editors, labelOnTop, 0, 0, 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 minWidth The minimal width of the composite
* @param minHeight The minimal height of the composite
*/
public static void doDefaultLayout(Composite parent, DialogField[] editors, boolean labelOnTop, int minWidth,
int minHeight) {
doDefaultLayout(parent, editors, labelOnTop, minWidth, minHeight, 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 minWidth The minimal width of the composite
* @param minHeight The minimal height of the composite
* @param marginWidth The margin width to be used by the composite
* @param marginHeight The margin height to be used by the composite
* @deprecated
*/
@Deprecated
public static void doDefaultLayout(Composite parent, DialogField[] editors, boolean labelOnTop, int minWidth,
int minHeight, int marginWidth, int marginHeight) {
int nCulumns = getNumberOfColumns(editors);
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 = new GridLayout();
if (marginWidth != SWT.DEFAULT) {
layout.marginWidth = marginWidth;
}
if (marginHeight != SWT.DEFAULT) {
layout.marginHeight = marginHeight;
}
layout.numColumns = nCulumns;
parent.setLayout(layout);
}
private static void modifyLabelSpans(Control[][] controls, int nCulumns) {
for (int i = 0; i < controls.length; i++) {
setHorizontalSpan(controls[i][0], nCulumns);
}
}
/**
* Sets the span of a control. Assumes that GridData is used.
*/
public static void setHorizontalSpan(Control control, int span) {
Object ld = control.getLayoutData();
if (ld instanceof GridData) {
((GridData) ld).horizontalSpan = span;
} else if (span != 1) {
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(Control control, int widthHint) {
Object ld = control.getLayoutData();
if (ld instanceof GridData) {
((GridData) ld).widthHint = widthHint;
}
}
/**
* Sets the heigthHint hint of a control. Assumes that GridData is used.
*/
public static void setHeigthHint(Control control, int heigthHint) {
Object ld = control.getLayoutData();
if (ld instanceof GridData) {
((GridData) ld).heightHint = heigthHint;
}
}
/**
* Sets the horizontal indent of a control. Assumes that GridData is used.
*/
public static void setHorizontalIndent(Control control, int horizontalIndent) {
Object ld = control.getLayoutData();
if (ld instanceof GridData) {
((GridData) ld).horizontalIndent = horizontalIndent;
}
}
/**
* Sets the horizontal indent of a control. Assumes that GridData is used.
*/
public static void setHorizontalGrabbing(Control control) {
Object ld = control.getLayoutData();
if (ld instanceof GridData) {
((GridData) ld).grabExcessHorizontalSpace = true;
}
}
}
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