org.eclipse.wb.internal.layout.group.model.assistant.GroupLayoutAlignmentPage.java Source code

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Here is the source code for org.eclipse.wb.internal.layout.group.model.assistant.GroupLayoutAlignmentPage.java

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/*******************************************************************************
 * Copyright (c) 2011 Google, Inc.
 * 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:
 *    Google, Inc. - initial API and implementation
 *******************************************************************************/
package org.eclipse.wb.internal.layout.group.model.assistant;

import com.google.common.collect.Lists;

import org.eclipse.wb.core.editor.actions.assistant.ILayoutAssistantPage;
import org.eclipse.wb.core.model.ObjectInfo;
import org.eclipse.wb.internal.core.utils.ui.GridDataFactory;
import org.eclipse.wb.internal.core.utils.ui.GridLayoutFactory;
import org.eclipse.wb.internal.layout.group.Messages;
import org.eclipse.wb.internal.layout.group.model.AlignmentsSupport;
import org.eclipse.wb.internal.layout.group.model.IGroupLayoutInfo;

import org.eclipse.jface.action.IAction;
import org.eclipse.jface.action.IContributionItem;
import org.eclipse.jface.action.ToolBarManager;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.ToolBar;

import org.apache.commons.collections.CollectionUtils;
import org.netbeans.modules.form.layoutdesign.LayoutConstants;

import java.util.List;

/**
 * Layout assistant page for aligning components.
 * 
 * @author mitin_aa
 */
public final class GroupLayoutAlignmentPage extends Composite implements ILayoutAssistantPage, LayoutConstants {
    private final IGroupLayoutInfo m_layout;
    private final List<ObjectInfo> m_objects;
    private ToolBarManager m_toolBarManager;

    ////////////////////////////////////////////////////////////////////////////
    //
    // Constructor
    //
    ////////////////////////////////////////////////////////////////////////////
    public GroupLayoutAlignmentPage(Composite parent, IGroupLayoutInfo layout, List<ObjectInfo> objects) {
        super(parent, SWT.NONE);
        // fields
        m_layout = layout;
        m_objects = objects;
        // UI
        GridLayoutFactory.create(this).noMargins().noSpacing();
        // put everything into a top group
        Group topGroup = new Group(this, SWT.NONE);
        GridDataFactory.create(topGroup).grab().fill();
        GridLayoutFactory.create(topGroup);
        topGroup.setText(Messages.GroupLayoutAlignmentPage_alignmentGroup);
        {
            m_toolBarManager = new ToolBarManager(SWT.FLAT);
            ToolBar toolBar = m_toolBarManager.createControl(topGroup);
            GridDataFactory.create(toolBar).alignHC();
        }
    }

    ////////////////////////////////////////////////////////////////////////////
    //
    // ILayoutAssistantPage
    //
    ////////////////////////////////////////////////////////////////////////////
    public void updatePage() {
        m_toolBarManager.removeAll();
        List<ObjectInfo> sel = Lists.newArrayList();
        List<Object> actions = Lists.newArrayList();
        CollectionUtils.addAll(sel, m_objects.iterator());
        new AlignmentsSupport(m_layout).addAlignmentActions(sel, actions);
        for (Object action : actions) {
            if (action instanceof IContributionItem) {
                m_toolBarManager.add((IContributionItem) action);
            } else if (action instanceof IAction) {
                m_toolBarManager.add((IAction) action);
            }
        }
        m_toolBarManager.update(true);
    }

    public boolean isPageValid() {
        return true;
    }
}