com.nokia.sdt.symbian.ui.appeditor.LanguagesDialog.java Source code

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Here is the source code for com.nokia.sdt.symbian.ui.appeditor.LanguagesDialog.java

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/*
* 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 the License "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: 
*
*/
package com.nokia.sdt.symbian.ui.appeditor;

import com.nokia.sdt.emf.dm.Language;
import com.nokia.sdt.symbian.SymbianLanguage;
import com.nokia.sdt.symbian.ui.noexport.Messages;

import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.viewers.*;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.*;

import java.util.ArrayList;
import java.util.List;

public class LanguagesDialog extends Dialog {

    private List<SymbianLanguage> allowedLanguages;
    private CheckboxTableViewer viewer;
    private SymbianLanguage[] okResult;

    class ContentProvider implements IStructuredContentProvider {
        public Object[] getElements(Object inputElement) {
            return allowedLanguages.toArray();
        }

        public void dispose() {
        }

        public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
        }
    }

    class TableLabelProvider extends LabelProvider implements ITableLabelProvider {
        public String getColumnText(Object element, int columnIndex) {
            return element.toString();
        }

        public Image getColumnImage(Object element, int columnIndex) {
            return null;
        }
    }

    private Table table;

    /**
     * Create the dialog
     * @param parentShell
     */
    public LanguagesDialog(Shell parentShell, List<Language> enabledLanguages) {
        super(parentShell);

        allowedLanguages = new ArrayList<SymbianLanguage>();
        // filter already enabled languages from the language list
        SymbianLanguage[] allLanguages = SymbianLanguage.getLanguages();
        for (int i = 0; i < allLanguages.length; i++) {
            SymbianLanguage currLang = allLanguages[i];
            boolean enabled = false;
            for (Language lang : enabledLanguages) {
                if (lang.getLanguageCode() == currLang.code) {
                    enabled = true;
                    break;
                }
            }
            if (!enabled) {
                allowedLanguages.add(currLang);
            }
        }
    }

    /**
     * Create contents of the dialog
     * @param parent
     */
    @Override
    protected Control createDialogArea(Composite parent) {
        Composite container = (Composite) super.createDialogArea(parent);

        final Label selectOneOrLabel = new Label(container, SWT.NONE);
        selectOneOrLabel.setText(Messages.getString("LanguagesDialog.prompt")); //$NON-NLS-1$

        viewer = CheckboxTableViewer.newCheckList(container, SWT.BORDER);
        viewer.setContentProvider(new ContentProvider());
        viewer.setLabelProvider(new TableLabelProvider());
        viewer.setInput(new Object());
        table = viewer.getTable();
        table.setLayoutData(new GridData(GridData.FILL, GridData.FILL, true, true));
        //

        return container;
    }

    /**
     * Create contents of the button bar
     * @param parent
     */
    @Override
    protected void createButtonsForButtonBar(Composite parent) {
        createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, true);
        createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false);
    }

    /**
     * Return the initial size of the dialog
     */
    @Override
    protected Point getInitialSize() {
        return new Point(386, 375);
    }

    protected void configureShell(Shell newShell) {
        super.configureShell(newShell);
        newShell.setText(Messages.getString("LanguagesDialog.dialogTitle")); //$NON-NLS-1$
    }

    @Override
    protected void okPressed() {
        Object[] array = viewer.getCheckedElements();
        if (array != null & array.length > 0) {
            okResult = new SymbianLanguage[array.length];
            for (int i = 0; i < array.length; i++) {
                okResult[i] = (SymbianLanguage) array[i];
            }
        }
        super.okPressed();
    }

    public SymbianLanguage[] getSelectedLanguages() {
        return okResult;
    }
}