core/com.nokia.carbide.discovery.ui/src/com/nokia/carbide/internal/discovery/ui/wizard/AbstractImportExportPage.java
/*
* Copyright (c) 2010 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.carbide.internal.discovery.ui.wizard;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.layout.GridDataFactory;
import org.eclipse.jface.layout.GridLayoutFactory;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.CheckStateChangedEvent;
import org.eclipse.jface.viewers.CheckboxTableViewer;
import org.eclipse.jface.viewers.ColumnLabelProvider;
import org.eclipse.jface.viewers.ICheckStateListener;
import org.eclipse.jface.viewers.TableViewerColumn;
import org.eclipse.jface.viewers.ViewerSorter;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.swt.widgets.Text;
import com.nokia.carbide.discovery.ui.Activator;
import com.nokia.carbide.discovery.ui.Messages;
import com.nokia.carbide.internal.discovery.ui.p2.FeatureInfo;
/**
* Abstract superclass of import and export page
*/
abstract class AbstractImportExportPage extends WizardPage {
protected Text pathText;
protected Button browseButton;
protected CheckboxTableViewer viewer;
protected Button checkAllButton;
protected Button checkNoneButton;
protected static final ImageDescriptor FEATURE_IMGDESC = Activator
.getImageDescriptor("icons/iu_obj.gif"); //$NON-NLS-1$
protected Image featureImg;
public AbstractImportExportPage(String pageName) {
super(pageName);
}
public void createControl(Composite parent) {
initializeDialogUnits(parent);
featureImg = FEATURE_IMGDESC.createImage();
Composite composite = new Composite(parent, SWT.NONE);
GridLayoutFactory.swtDefaults().numColumns(2).applyTo(composite);
GridDataFactory.fillDefaults().applyTo(composite);
composite.setSize(composite.computeSize(SWT.DEFAULT, SWT.DEFAULT));
Dialog.applyDialogFont(composite);
setControl(composite);
}
protected void createBrowseGroup(Composite parent, String labelText) {
Composite composite = new Composite(parent, SWT.NONE);
GridLayoutFactory.fillDefaults().numColumns(3).applyTo(composite);
GridDataFactory.fillDefaults().align(SWT.FILL, SWT.BEGINNING)
.grab(true, false).applyTo(composite);
Label label = new Label(composite, SWT.NONE);
label.setText(labelText);
pathText = new Text(composite, SWT.BORDER);
GridDataFactory.fillDefaults().align(SWT.FILL, SWT.CENTER)
.grab(true, false).hint(250, SWT.DEFAULT).applyTo(pathText);
pathText.addModifyListener(new ModifyListener() {
public void modifyText(ModifyEvent e) {
setPageComplete(validatePage());
}
});
browseButton = new Button(composite, SWT.PUSH);
browseButton.setText(Messages.AbstractImportExportPage_BrowseButtonLabel);
browseButton
.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL));
setButtonLayoutData(browseButton);
new Label(parent, SWT.NONE); // spacer
}
protected void createViewerGroup(Composite parent, String labelText) {
Label label = new Label(parent, SWT.NONE);
label.setText(labelText);
GridDataFactory.defaultsFor(label).span(2, 1).applyTo(label);
viewer = CheckboxTableViewer.newCheckList(parent, SWT.BORDER);
TableViewerColumn featureColumn = new TableViewerColumn(viewer, SWT.LEFT);
featureColumn.getColumn().setText(Messages.AbstractImportExportPage_FeatureColTitle);
featureColumn.setLabelProvider(new ColumnLabelProvider() {
@Override
public Image getImage(Object element) {
return featureImg;
}
@Override
public String getText(Object element) {
if (element instanceof FeatureInfo)
return ((FeatureInfo) element).getId();
return null;
}
});
TableViewerColumn versionColumn = new TableViewerColumn(viewer, SWT.LEFT);
versionColumn.getColumn().setText(Messages.AbstractImportExportPage_VersionColTitle);
versionColumn.setLabelProvider(new ColumnLabelProvider() {
@Override
public String getText(Object element) {
if (element instanceof FeatureInfo) {
return ((FeatureInfo) element).getVersion().toString();
}
return null;
}
});
viewer.setSorter(new ViewerSorter());
viewer.getControl().setLayoutData(
new GridData(GridData.FILL_BOTH | GridData.GRAB_HORIZONTAL
| GridData.GRAB_VERTICAL));
viewer.setContentProvider(new ArrayContentProvider());
viewer.getTable().setHeaderVisible(true);
Composite buttonComposite = new Composite(parent, SWT.NONE);
GridDataFactory.swtDefaults().align(SWT.END, SWT.BEGINNING)
.applyTo(buttonComposite);
buttonComposite.setLayout(new GridLayout());
checkAllButton = new Button(buttonComposite, SWT.PUSH);
checkAllButton.setText(Messages.AbstractImportExportPage_CheckAllLabel);
setButtonLayoutData(checkAllButton);
checkAllButton.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
viewer.setAllChecked(true);
enableButtons();
setPageComplete(validatePage());
}
});
checkNoneButton = new Button(buttonComposite, SWT.PUSH);
checkNoneButton.setText(Messages.AbstractImportExportPage_CheckNoneLabel);
setButtonLayoutData(checkNoneButton);
checkNoneButton.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
viewer.setAllChecked(false);
enableButtons();
setPageComplete(validatePage());
}
});
viewer.addCheckStateListener(new ICheckStateListener() {
public void checkStateChanged(CheckStateChangedEvent event) {
enableButtons();
setPageComplete(validatePage());
}
});
}
protected abstract boolean validatePage();
public Collection<FeatureInfo> getSelectedFeatures() {
Object[] checkedElements = viewer.getCheckedElements();
List<FeatureInfo> infos = new ArrayList<FeatureInfo>();
for (Object o : checkedElements) {
infos.add((FeatureInfo) o);
}
return infos;
}
protected void packColumns() {
TableColumn[] columns = viewer.getTable().getColumns();
for (TableColumn column : columns) {
column.pack();
}
}
protected void updateViewer() {
packColumns();
viewer.setAllChecked(true);
enableButtons();
setPageComplete(validatePage());
}
private void enableButtons() {
checkAllButton.setEnabled(viewer.getTable().getItemCount() > viewer.getCheckedElements().length);
checkNoneButton.setEnabled(viewer.getCheckedElements().length > 0);
}
@Override
public void dispose() {
super.dispose();
featureImg.dispose();
}
}