/*******************************************************************************
* Copyright (c) 2007, 2008 Symbian Software Limited and others.
* 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:
* Bala Torati (Symbian) - Initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.ui.templateengine;
import java.util.Iterator;
import java.util.Map;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.viewers.DoubleClickEvent;
import org.eclipse.jface.viewers.IDoubleClickListener;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.viewers.StructuredViewer;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.jface.wizard.IWizard;
import org.eclipse.jface.wizard.IWizardNode;
import org.eclipse.jface.wizard.IWizardPage;
import org.eclipse.jface.wizard.WizardSelectionPage;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.SashForm;
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.Label;
/**
* TemplateListSelectionPage
*/
class TemplateListSelectionPage extends WizardSelectionPage implements ISelectionChangedListener {
private String labelText;
private FormBrowser descriptionBrowser;
private TreeViewer wizardSelectionTreeViewer = null;
private TableViewer wizardSelectionTableViewer = null;
private StructuredViewer wizardSelectionViewer = null;
private TemplatesChoiceWizard parentWizard;
private Template[] templates;
public TemplateListSelectionPage(TemplatesChoiceWizard parentWizard) {
super("Template Selection"); //$NON-NLS-1$
setTitle(parentWizard.getListSelectionTitle());
setDescription(parentWizard.getListSelectionDescription());
this.labelText = parentWizard.getListSelectionLabel();
descriptionBrowser = new FormBrowser();
descriptionBrowser.setText(""); //$NON-NLS-1$
this.parentWizard = parentWizard;
}
public void createDescriptionIn(Composite composite) {
descriptionBrowser.createControl(composite);
Control c = descriptionBrowser.getControl();
GridData gd = new GridData(GridData.FILL_BOTH);
gd.widthHint = 200;
c.setLayoutData(gd);
}
public String getLabel() {
return labelText;
}
public void setDescriptionText(String text) {
descriptionBrowser.setText(text);
}
public void setDescriptionEnabled(boolean enabled) {
Control control = descriptionBrowser.getControl();
if (control != null) {
control.setEnabled(enabled);
}
}
public void moveToNextPage() {
getContainer().showPage(getNextPage());
}
public void createControl(Composite parent) {
Composite container = new Composite(parent, SWT.NONE);
GridLayout layout = new GridLayout();
layout.verticalSpacing = 10;
container.setLayout(layout);
container.setLayoutData(new GridData(GridData.FILL_BOTH));
Label label = new Label(container, SWT.NONE);
label.setText(getLabel());
GridData gd = new GridData();
label.setLayoutData(gd);
SashForm sashForm = new SashForm(container, SWT.VERTICAL);
gd = new GridData(GridData.FILL_BOTH);
gd.widthHint = 300;
gd.minimumHeight = 230;
sashForm.setLayoutData(gd);
boolean useTree = parentWizard.showTemplatesInTreeView();
if (useTree)
{
wizardSelectionTreeViewer = new TreeViewer(sashForm, SWT.BORDER);
wizardSelectionTreeViewer.setContentProvider(parentWizard);
wizardSelectionTreeViewer.addDoubleClickListener(new IDoubleClickListener() {
public void doubleClick(DoubleClickEvent event) {
selectionChanged(new SelectionChangedEvent(wizardSelectionTreeViewer, wizardSelectionTreeViewer.getSelection()));
moveToNextPage();
}
});
wizardSelectionTreeViewer.setInput(templates);
wizardSelectionTreeViewer.addSelectionChangedListener(this);
wizardSelectionTreeViewer.getTree().setData("name", "templates"); //$NON-NLS-1$ //$NON-NLS-2$
wizardSelectionViewer = wizardSelectionTreeViewer;
}
else
{
wizardSelectionTableViewer = new TableViewer(sashForm, SWT.BORDER);
wizardSelectionTableViewer.setContentProvider(parentWizard);
wizardSelectionTableViewer.addDoubleClickListener(new IDoubleClickListener() {
public void doubleClick(DoubleClickEvent event) {
selectionChanged(new SelectionChangedEvent(wizardSelectionTableViewer, wizardSelectionTableViewer.getSelection()));
moveToNextPage();
}
});
wizardSelectionTableViewer.setInput(templates);
wizardSelectionTableViewer.addSelectionChangedListener(this);
wizardSelectionTableViewer.getTable().setData("name", "templates"); //$NON-NLS-1$ //$NON-NLS-2$
wizardSelectionViewer = wizardSelectionTableViewer;
}
wizardSelectionViewer.getControl().setData(".uid", "wizardSelectionViewer"); //$NON-NLS-1$ //$NON-NLS-2$
createDescriptionIn(sashForm);
sashForm.setWeights(new int[] {75, 25});
Dialog.applyDialogFont(container);
setControl(container);
}
public void selectionChanged(SelectionChangedEvent event) {
setErrorMessage(null);
IStructuredSelection selection = (IStructuredSelection) event.getSelection();
Template currentWizardSelection = null;
Object selectedObject = null;
Iterator<?> iter = selection.iterator();
if (iter.hasNext()) {
selectedObject = iter.next();
if (selectedObject instanceof Template)
currentWizardSelection = (Template) selectedObject;
}
if (currentWizardSelection == null) {
setDescriptionText(parentWizard.getDescription(selectedObject));
setSelectedNode(null);
return;
}
final Template finalSelection = currentWizardSelection;
setSelectedNode(new WizardNode(this, finalSelection));
setDescriptionText(parentWizard.getDescription(finalSelection));
getContainer().updateButtons();
}
public Template getTemplate() {
IWizardNode selectedNode = getSelectedNode();
if (selectedNode != null) {
return ((WizardNode)selectedNode).getTemplate();
}
return null;
}
public IWizardPage getNextPage(boolean shouldCreate) {
if (!shouldCreate) {
return super.getNextPage();
}
IWizardNode selectedNode = getSelectedNode();
selectedNode.dispose();
IWizard wizard = selectedNode.getWizard();
if (wizard == null) {
super.setSelectedNode(null);
return null;
}
if (shouldCreate) {
wizard.addPages();
}
return wizard.getStartingPage();
}
@Override
public boolean canFlipToNextPage() {
IStructuredSelection ssel = (IStructuredSelection)wizardSelectionViewer.getSelection();
return ssel != null && !ssel.isEmpty() && (ssel.getFirstElement() instanceof Template);
}
@Override
public void setVisible(boolean visible) {
if (visible) {
Template[] templates = parentWizard.getTemplates();
if (templatesHaveChanged(templates)) {
this.templates = templates;
wizardSelectionViewer.setInput(templates);
wizardSelectionViewer.refresh();
if (wizardSelectionTreeViewer != null) {
wizardSelectionTreeViewer.expandAll();
}
// select the first element by default
if (wizardSelectionTableViewer != null) {
wizardSelectionTableViewer.setSelection(new StructuredSelection(wizardSelectionTableViewer.getElementAt(0)), true);
}
if (wizardSelectionTreeViewer != null) {
wizardSelectionTreeViewer.setSelection(new StructuredSelection(wizardSelectionTreeViewer.getTree().getItem(0).getData()), true);
}
}
}
super.setVisible(visible);
if (visible) {
if (wizardSelectionTreeViewer != null) {
wizardSelectionTreeViewer.getTree().setFocus();
}
if (wizardSelectionTableViewer != null) {
wizardSelectionTableViewer.getTable().setFocus();
}
}
}
private boolean templatesHaveChanged(Template[] newTemplates) {
// doing this rather than an array compare because even when
// the templates are the same the objects are not. we really
// just need to compare the template info.
boolean changed = false;
if (newTemplates != null && templates != null && newTemplates.length == templates.length) {
for (int i=0; i<templates.length; i++) {
if (!newTemplates[i].getTemplateInfo().equals(templates[i].getTemplateInfo())) {
changed = true;
break;
}
}
} else {
changed = true;
}
return changed;
}
Map<String, String> getDataInPreviousPages() {
return parentWizard.getAllDataInNonTemplatePages();
}
public IWizardDataPage[] getPagesAfterTemplatePages()
{
return parentWizard.getPagesAfterTemplatePages();
}
public IWizardDataPage[] getPagesAfterTemplateSelection() throws InstantiationException, IllegalAccessException, ClassNotFoundException
{
return parentWizard.getPagesAfterTemplateSelectionWithExtraPages(getTemplate());
}
public void adjustTemplateValues(Template template) {
parentWizard.adjustTemplateValues(template);
}
}