/*
 * Copyright (c) 2007 Borland Software Corporation
 * 
 * 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:
 *    Dmitry Stadnik (Borland) - initial API and implementation
 */
«IMPORT "http://www.eclipse.org/gmf/2008/GenModel"»
«IMPORT "http://www.eclipse.org/emf/2002/Ecore"»
«EXTENSION xpt::editor::GenDiagram»
«EXTENSION xpt::editor::Utils»

«DEFINE className FOR gmfgen::GenDiagram»«defaultModelElementSelectionPageClassName()»«ENDDEFINE»

«DEFINE qualifiedClassName FOR gmfgen::GenDiagram»«editorGen.editor.packageName».«EXPAND className»«ENDDEFINE»

«DEFINE ModelElementSelectionPage FOR gmfgen::GenDiagram-»
«EXPAND xpt::Common::copyright FOR editorGen-»
package «editorGen.editor.packageName»;

«EXPAND xpt::Common::generatedClassComment("Wizard page that allows to select element from model.")»
public class «EXPAND className» extends org.eclipse.jface.wizard.WizardPage {
	«EXPAND attributes-»

	«EXPAND ctor-»

	«EXPAND getModelElement-»

	«EXPAND setModelElement-»

	«EXPAND createControl-»

	«EXPAND getSelectionTitle-»

	«EXPAND updateSelection-»

	«EXPAND validatePage-»

	«EXPAND additions-»
}
«ENDDEFINE»

«DEFINE attributes FOR gmfgen::GenDiagram-»
«EXPAND xpt::Common::generatedMemberComment»
protected org.eclipse.emf.ecore.EObject selectedModelElement;

«EXPAND xpt::Common::generatedMemberComment»
private org.eclipse.jface.viewers.TreeViewer modelViewer;
«ENDDEFINE»

«DEFINE ctor FOR gmfgen::GenDiagram-»
«EXPAND xpt::Common::generatedMemberComment»
public «EXPAND className»(String pageName) {
	super(pageName);
}
«ENDDEFINE»

«DEFINE getModelElement FOR gmfgen::GenDiagram-»
«EXPAND xpt::Common::generatedMemberComment»
public org.eclipse.emf.ecore.EObject getModelElement() {
	return selectedModelElement;
}
«ENDDEFINE»

«DEFINE setModelElement FOR gmfgen::GenDiagram-»
«EXPAND xpt::Common::generatedMemberComment»
public void setModelElement(org.eclipse.emf.ecore.EObject modelElement) {
	selectedModelElement = modelElement;
	if (modelViewer != null) {
		if (selectedModelElement != null) {
			modelViewer.setInput(selectedModelElement.eResource());
			modelViewer.setSelection(new org.eclipse.jface.viewers.StructuredSelection(selectedModelElement));
		} else {
			modelViewer.setInput(null);
		}
		setPageComplete(validatePage());
	}
}
«ENDDEFINE»

«DEFINE createControl FOR gmfgen::GenDiagram-»
«EXPAND xpt::Common::generatedMemberComment»
public void createControl(org.eclipse.swt.widgets.Composite parent) {
	initializeDialogUnits(parent);

	org.eclipse.swt.widgets.Composite plate = new org.eclipse.swt.widgets.Composite(parent, org.eclipse.swt.SWT.NONE);
	plate.setLayoutData(new org.eclipse.swt.layout.GridData(org.eclipse.swt.layout.GridData.FILL_BOTH));
	org.eclipse.swt.layout.GridLayout layout = new org.eclipse.swt.layout.GridLayout();
	layout.marginWidth = 0;
	plate.setLayout(layout);
	setControl(plate);

	org.eclipse.swt.widgets.Label label = new org.eclipse.swt.widgets.Label(plate, org.eclipse.swt.SWT.NONE);
	label.setText(getSelectionTitle());
	label.setLayoutData(new org.eclipse.swt.layout.GridData(org.eclipse.swt.layout.GridData.HORIZONTAL_ALIGN_BEGINNING));

	modelViewer = new org.eclipse.jface.viewers.TreeViewer(
			plate, org.eclipse.swt.SWT.SINGLE | org.eclipse.swt.SWT.H_SCROLL | org.eclipse.swt.SWT.V_SCROLL | org.eclipse.swt.SWT.BORDER);
	org.eclipse.swt.layout.GridData layoutData = new org.eclipse.swt.layout.GridData(org.eclipse.swt.layout.GridData.FILL_BOTH);
	layoutData.heightHint = 300;
	layoutData.widthHint = 300;
	modelViewer.getTree().setLayoutData(layoutData);
	modelViewer.setContentProvider(new org.eclipse.emf.edit.ui.provider.AdapterFactoryContentProvider(
			«editorGen.plugin.getActivatorQualifiedClassName()».getInstance().getItemProvidersAdapterFactory()));
	modelViewer.setLabelProvider(new org.eclipse.emf.edit.ui.provider.AdapterFactoryLabelProvider(
			«editorGen.plugin.getActivatorQualifiedClassName()».getInstance().getItemProvidersAdapterFactory()));
	if (selectedModelElement != null) {
		modelViewer.setInput(selectedModelElement.eResource());
		modelViewer.setSelection(new org.eclipse.jface.viewers.StructuredSelection(selectedModelElement));
	}
	modelViewer.addSelectionChangedListener(new org.eclipse.jface.viewers.ISelectionChangedListener() {
		public void selectionChanged(org.eclipse.jface.viewers.SelectionChangedEvent event) {
			«EXPAND className».this.updateSelection((org.eclipse.jface.viewers.IStructuredSelection) event.getSelection());
		}
	});

	setPageComplete(validatePage());
}
«ENDDEFINE»

«DEFINE getSelectionTitle FOR gmfgen::GenDiagram-»
«EXPAND xpt::Common::generatedMemberComment("Override to provide custom model element description.")»
protected String getSelectionTitle() {
	return «EXPAND xpt::Externalizer::accessorCall(i18nKeyForModelElementSelectionPage().messageKey()) FOR editorGen»;
}
«ENDDEFINE»

«DEFINE updateSelection FOR gmfgen::GenDiagram-»
«EXPAND xpt::Common::generatedMemberComment»
protected void updateSelection(org.eclipse.jface.viewers.IStructuredSelection selection) {
	selectedModelElement = null;
	if (selection.size() == 1) {
		Object selectedElement = selection.getFirstElement();
		if (selectedElement instanceof org.eclipse.emf.edit.provider.IWrapperItemProvider) {
			selectedElement = ((org.eclipse.emf.edit.provider.IWrapperItemProvider) selectedElement).getValue();
		}
		if (selectedElement instanceof org.eclipse.emf.ecore.util.FeatureMap.Entry) {
			selectedElement = ((org.eclipse.emf.ecore.util.FeatureMap.Entry) selectedElement).getValue();
		}
		if (selectedElement instanceof org.eclipse.emf.ecore.EObject) {
			selectedModelElement = (org.eclipse.emf.ecore.EObject) selectedElement;
		}
	}
	setPageComplete(validatePage());
}
«ENDDEFINE»

«DEFINE validatePage FOR gmfgen::GenDiagram-»
«EXPAND xpt::Common::generatedMemberComment("Override to provide specific validation of the selected model element.")»
protected boolean validatePage() {
	return true;
}
«ENDDEFINE»

«DEFINE additions FOR gmfgen::GenDiagram»«ENDDEFINE»

«DEFINE i18nValues FOR gmfgen::GenDiagram-»
«EXPAND xpt::Externalizer::messageEntry(i18nKeyForModelElementSelectionPage().messageKey(), "Select model element:")-»
«ENDDEFINE»

«DEFINE i18nAccessors FOR gmfgen::GenDiagram-»
	«EXPAND xpt::Externalizer::accessorField(i18nKeyForModelElementSelectionPage().messageKey())-»
«ENDDEFINE»