com.nokia.tools.variant.views.notesview.NotesViewPage.java Source code

Introduction

Here is the source code for com.nokia.tools.variant.views.notesview.NotesViewPage.java

Source

/*
 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 
 * All rights reserved.
 * This component and the accompanying materials are made available
 * under the terms of "Eclipse Public License v1.0"
 * which accompanies this distribution, and is available
 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
 * 
 * Initial Contributors:
 * Nokia Corporation - Initial contribution
 * 
 * Contributors:
 * 
 * Description: This file is part of com.nokia.tools.variant.views component.
 */

package com.nokia.tools.variant.views.notesview;

import org.eclipse.emf.common.notify.Adapter;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.ecore.util.EContentAdapter;
import org.eclipse.gef.ui.actions.ActionRegistry;
import org.eclipse.jface.viewers.DoubleClickEvent;
import org.eclipse.jface.viewers.IDoubleClickListener;
import org.eclipse.jface.viewers.ISelectionProvider;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.ui.IActionBars;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.actions.ActionFactory;
import org.eclipse.ui.part.IPageSite;
import org.eclipse.ui.part.Page;

import com.nokia.tools.variant.content.confml.ConfmlPackage;
import com.nokia.tools.variant.content.confml.Setting;
import com.nokia.tools.variant.content.confml.View;
import com.nokia.tools.variant.views.common.Column;
import com.nokia.tools.variant.views.common.GenericTableViewer;
import com.nokia.tools.variant.views.common.ViewsMessages;

public class NotesViewPage extends Page {

    private View view;

    private Composite composite;
    private GenericTableViewer notesTV;

    private final int COLUMN_1_WIDTH = 200;
    private final int COLUMN_2_WIDTH = 350;
    private final int COLUMN_3_WIDTH = 350;

    private Adapter adapter;

    public NotesViewPage(View view) {
        super();
        this.view = view;
    }

    @Override
    public void init(IPageSite pageSite) {

        super.init(pageSite);
        contributeToActionBars();
    }

    @Override
    public void createControl(Composite parent) {
        composite = new Composite(parent, SWT.NONE);
        composite.setLayout(new GridLayout(1, false));

        final Label notesCount = new Label(composite, SWT.NONE);

        notesTV = new GenericTableViewer(composite);

        notesTV.addColumn(new Column(ViewsMessages.NOTES_COLUMN_1_NAME, COLUMN_1_WIDTH));
        notesTV.addColumn(new Column(ViewsMessages.NOTES_COLUMN_2_NAME, COLUMN_2_WIDTH));
        notesTV.addColumn(new Column(ViewsMessages.NOTES_COLUMN_3_NAME, COLUMN_3_WIDTH));

        notesTV.setContentProvider(new NotesContentProvider());
        notesTV.setLabelProvider(new NotesLabelProvider());
        notesTV.setInput(view);

        notesTV.populateTableViewer();

        adapter = new EContentAdapter() {

            public void notifyChanged(Notification notification) {
                super.notifyChanged(notification);
                if (notification.getEventType() == Notification.REMOVING_ADAPTER) {
                    return;
                }

                if (notification.getEventType() == Notification.ADD
                        || notification.getEventType() == Notification.ADD_MANY
                        || notification.getEventType() == Notification.REMOVE
                        || notification.getEventType() == Notification.REMOVE_MANY
                        || (notification.getEventType() == Notification.SET
                                && notification.getFeatureID(Setting.class) == ConfmlPackage.SETTING__NOTE)) {
                    if (notesTV != null && notesTV.getTv() != null) {
                        notesTV.getTv().refresh();
                        notesCount.setText(notesTV.getRowCount() + " " + ViewsMessages.NOTES);
                        notesCount.pack();
                    }
                }
            }

        };

        view.eAdapters().add(adapter);

        notesTV.populateTableViewer();
        notesTV.getTv().addDoubleClickListener(new IDoubleClickListener() {

            public void doubleClick(DoubleClickEvent event) {
                IWorkbenchPage activePage = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
                if (activePage != null) {
                    IEditorPart activeEditor = activePage.getActiveEditor();
                    if (activeEditor instanceof ISelectionProvider) {
                        StructuredSelection selection = (StructuredSelection) event.getSelection();
                        Setting setting = (Setting) selection.getFirstElement();
                        StructuredSelection structuredSelection = new StructuredSelection(setting);

                        ISelectionProvider provider = (ISelectionProvider) activeEditor;
                        provider.setSelection(structuredSelection);
                    }
                }

            }

        });

        notesCount.setText(notesTV.getRowCount() + " " + ViewsMessages.NOTES);
    }

    @Override
    public Control getControl() {

        return composite;
    }

    @Override
    public void setFocus() {

    }

    /**
     * adding actions to main toolbar
     */
    private void contributeToActionBars() {

        IActionBars bars = getSite().getActionBars();
        /* set undo/redo handlers from parent editor */
        ActionRegistry registry = (ActionRegistry) (getSite().getWorkbenchWindow().getActivePage()
                .getActiveEditor()).getAdapter(ActionRegistry.class);
        bars.setGlobalActionHandler(ActionFactory.UNDO.getId(), registry.getAction(ActionFactory.UNDO.getId()));
        bars.setGlobalActionHandler(ActionFactory.REDO.getId(), registry.getAction(ActionFactory.REDO.getId()));

        bars.updateActionBars();

    }

    @Override
    public void dispose() {
        view.eAdapters().remove(adapter);
        adapter = null;
        view = null;
        if (notesTV != null && notesTV.getTv() != null && notesTV.getTv().getTable() != null
                && !notesTV.getTv().getTable().isDisposed()) {
            notesTV.getTv().getTable().dispose();
            notesTV = null;
        }
        if (composite != null && !composite.isDisposed()) {
            composite.dispose();
            composite = null;
        }
        notesTV = null;
        super.dispose();
    }
}