com.bdaum.zoom.ui.internal.dialogs.DNGConverterDialog.java Source code

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Here is the source code for com.bdaum.zoom.ui.internal.dialogs.DNGConverterDialog.java

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/*
 * This file is part of the ZoRa project: http://www.photozora.org.
 *
 * ZoRa is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * ZoRa is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with ZoRa; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * (c) 2009 Berthold Daum  
 */
package com.bdaum.zoom.ui.internal.dialogs;

import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;

import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.IDialogSettings;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;

import com.bdaum.zoom.core.Constants;
import com.bdaum.zoom.core.Core;
import com.bdaum.zoom.core.db.IDbErrorHandler;
import com.bdaum.zoom.ui.dialogs.ZTitleAreaDialog;
import com.bdaum.zoom.ui.internal.UiActivator;
import com.bdaum.zoom.ui.internal.widgets.FileEditor;
import com.bdaum.zoom.ui.widgets.CLink;

public class DNGConverterDialog extends ZTitleAreaDialog {

    private static final int WITHOUTDNG = 9999;
    private static final String SETTINGSID = "com.bdaum.zoom.dngConverterDialog"; //$NON-NLS-1$
    private File dngLocation;
    private Image dngImage;
    private FileEditor fileEditor;
    private IDialogSettings dialogSettings;

    public DNGConverterDialog(Shell parentShell, File dngLocation) {
        super(parentShell);
        this.dngLocation = dngLocation;
        dialogSettings = getDialogSettings(UiActivator.getDefault(), SETTINGSID);
    }

    @Override
    public int open() {
        IDbErrorHandler errorHandler = Core.getCore().getErrorHandler();
        if (errorHandler != null)
            errorHandler.alarmOnPrompt("question"); //$NON-NLS-1$
        return super.open();
    }

    @Override
    public void create() {
        super.create();
        setTitle(Messages.DNGConverterDialog_no_converter);
        setTitleImage(dngImage = UiActivator.getImageDescriptor("icons/banner/dng.png").createImage()); //$NON-NLS-1$
        setMessage(Messages.DNGConverterDialog_make_sure);
        updateButtons();
    }

    @Override
    protected Control createDialogArea(Composite parent) {
        Composite area = (Composite) super.createDialogArea(parent);
        final Composite composite = new Composite(area, SWT.NONE);
        composite.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
        composite.setLayout(new GridLayout(1, false));
        fileEditor = new FileEditor(composite, SWT.OPEN, Messages.DNGConverterDialog_location, true,
                Constants.EXEEXTENSION, Constants.EXEFILTERNAMES, null,
                dngLocation == null ? "" : dngLocation.getAbsolutePath(), //$NON-NLS-1$
                false, false, dialogSettings);
        fileEditor.addListener(new Listener() {
            @Override
            public void handleEvent(Event event) {
                updateButtons();
            }
        });
        CLink link = new CLink(composite, SWT.NONE);
        link.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, false, false));
        link.setText(Messages.DNGConverterDialog_download);
        link.addListener(new Listener() {
            @Override
            public void handleEvent(Event event) {
                String vlcDownload = System.getProperty(Messages.DNGConverterDialog_dngkey);
                try {
                    PlatformUI.getWorkbench().getBrowserSupport().getExternalBrowser()
                            .openURL(new URL(vlcDownload));
                } catch (PartInitException e1) {
                    // do nothing
                } catch (MalformedURLException e1) {
                    // should never happen
                }
            }
        });
        return area;
    }

    @Override
    protected void createButtonsForButtonBar(Composite parent) {
        createButton(parent, WITHOUTDNG, Messages.DNGConverterDialog_import_without_dng, false);
        super.createButtonsForButtonBar(parent);
    }

    @Override
    protected void buttonPressed(int buttonId) {
        if (buttonId == WITHOUTDNG) {
            dngLocation = new File(""); //$NON-NLS-1$
            okPressed();
        }
        super.buttonPressed(buttonId);
    }

    @Override
    protected void okPressed() {
        fileEditor.saveValues();
        super.okPressed();
    }

    protected void updateButtons() {
        boolean enabled = false;
        String s = fileEditor.getText();
        if (!s.isEmpty())
            dngLocation = new File(s);
        enabled = dngLocation.exists();
        setErrorMessage(enabled ? null : Messages.DNGConverterDialog_for_converting);
        getButton(IDialogConstants.OK_ID).setEnabled(enabled);
    }

    @Override
    protected void cancelPressed() {
        dngLocation = null;
        super.cancelPressed();
    }

    public File getResult() {
        if (dngLocation != null && !dngLocation.getName().isEmpty() && !dngLocation.exists())
            return null;
        return dngLocation;
    }

    @Override
    public boolean close() {
        if (dngImage != null)
            dngImage.dispose();
        return super.close();
    }

}