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/***************************************************************************
* Copyright (c) 2004 - 2009 Eike Stepper (Berlin, Germany) 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:
* Eike Stepper - initial API and implementation
**************************************************************************/
package org.eclipse.net4j.util.ui.widgets;
import org.eclipse.net4j.util.ui.UIUtil;
import org.eclipse.jface.action.CoolBarManager;
import org.eclipse.jface.action.IContributionManager;
import org.eclipse.jface.action.ToolBarManager;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.CoolBar;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Layout;
/**
* @author Eike Stepper
* @since 2.0
*/
public abstract class CoolBarComposite extends Composite
{
private CoolBarManager coolBarManager;
private Control clientControl;
private Label separator;
private ToolBarManager toolBarManager;
public CoolBarComposite(Composite parent, int style)
{
super(parent, style);
setLayout(new CoolBarLayout());
toolBarManager = new ToolBarManager(SWT.FLAT | SWT.RIGHT | SWT.WRAP | SWT.HORIZONTAL);
fillCoolBar(toolBarManager);
coolBarManager = new CoolBarManager(SWT.FLAT | SWT.HORIZONTAL);
coolBarManager.add(toolBarManager);
coolBarManager.setLockLayout(true);
coolBarManager.createControl(this);
coolBarManager.update(true);
separator = new Label(this, SWT.SEPARATOR | SWT.HORIZONTAL);
separator.setLayoutData(UIUtil.createGridData(true, false));
Composite composite = new Composite(this, SWT.NONE);
composite.setLayout(UIUtil.createGridLayout(1));
clientControl = createUI(composite);
clientControl.setLayoutData(UIUtil.createGridData());
}
@Override
public void dispose()
{
coolBarManager.dispose();
super.dispose();
}
public Control getClientControl()
{
return clientControl;
}
public void updateCoolBar()
{
toolBarManager.removeAll();
fillCoolBar(toolBarManager);
coolBarManager.update(true);
}
protected abstract Control createUI(Composite parent);
protected CoolBar getCoolBarControl()
{
if (coolBarManager != null)
{
return coolBarManager.getControl();
}
return null;
}
protected void fillCoolBar(IContributionManager manager)
{
}
/**
* @author Eike Stepper
* @see org.eclipse.jface.window.ApplicationWindow.ApplicationWindowLayout
*/
public class CoolBarLayout extends Layout
{
static final int BAR_SIZE = 23;
private static final int SEPARATOR_SIZE = 1;
@Override
protected Point computeSize(Composite composite, int wHint, int hHint, boolean flushCache)
{
if (wHint != SWT.DEFAULT && hHint != SWT.DEFAULT)
{
return new Point(wHint, hHint);
}
boolean coolBarChildrenExist = coolBarChildrenExist();
Point result = new Point(0, 0);
Control[] ws = composite.getChildren();
for (int i = 0; i < ws.length; i++)
{
Control w = ws[i];
boolean hide = false;
if (w == getCoolBarControl())
{
if (!coolBarChildrenExist)
{
hide = true;
result.y += BAR_SIZE;
}
}
else if (w == separator)
{
if (!coolBarChildrenExist)
{
hide = true;
result.y += SEPARATOR_SIZE;
}
}
else if (i > 0)
{
hide = false;
}
if (!hide)
{
Point e = w.computeSize(wHint, hHint, flushCache);
result.x = Math.max(result.x, e.x);
result.y += e.y;
}
}
if (wHint != SWT.DEFAULT)
{
result.x = wHint;
}
if (hHint != SWT.DEFAULT)
{
result.y = hHint;
}
return result;
}
@Override
protected void layout(Composite composite, boolean flushCache)
{
boolean coolBarChildrenExist = coolBarChildrenExist();
Rectangle clientArea = composite.getClientArea();
Control[] ws = composite.getChildren();
for (int i = 0; i < ws.length; i++)
{
Control w = ws[i];
if (w == getCoolBarControl() || w == separator)
{
if (coolBarChildrenExist)
{
Point e = w.computeSize(clientArea.width, SWT.DEFAULT, flushCache);
w.setBounds(clientArea.x, clientArea.y, clientArea.width, e.y);
clientArea.y += e.y;
clientArea.height -= e.y;
}
}
else
{
w.setBounds(clientArea.x, clientArea.y, clientArea.width, clientArea.height);
}
}
}
protected boolean coolBarChildrenExist()
{
CoolBar coolBarControl = getCoolBarControl();
if (coolBarControl != null)
{
return coolBarControl.getItemCount() > 0;
}
return false;
}
}
}
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