Library07InitDiagramFileAction.java example

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gmf-tooling-master
package org.eclipse.gmf.examples.eclipsecon.library.diagram.part;

import org.eclipse.core.resources.IFile;

import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.common.util.WrappedException;

import org.eclipse.emf.ecore.EObject;

import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.resource.ResourceSet;

import org.eclipse.emf.transaction.TransactionalEditingDomain;

import org.eclipse.gmf.examples.eclipsecon.library.diagram.edit.parts.LibraryEditPart;

import org.eclipse.gmf.runtime.emf.core.GMFEditingDomainFactory;

import org.eclipse.jface.action.IAction;

import org.eclipse.jface.dialogs.IDialogSettings;
import org.eclipse.jface.dialogs.MessageDialog;

import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.StructuredSelection;

import org.eclipse.jface.wizard.Wizard;
import org.eclipse.jface.wizard.WizardDialog;

import org.eclipse.ui.IObjectActionDelegate;
import org.eclipse.ui.IWorkbenchPart;

/**
 * @generated
 */
public class Library07InitDiagramFileAction implements IObjectActionDelegate {

	/**
	 * @generated
	 */
	private IWorkbenchPart myPart;

	/**
	 * @generated
	 */
	private IFile mySelectedModelFile;

	/**
	 * @generated
	 */
	private IStructuredSelection mySelection;

	/**
	 * @generated
	 */
	public void setActivePart(IAction action, IWorkbenchPart targetPart) {
		myPart = targetPart;
	}

	/**
	 * @generated
	 */
	public void selectionChanged(IAction action, ISelection selection) {
		mySelectedModelFile = null;
		mySelection = StructuredSelection.EMPTY;
		action.setEnabled(false);
		if (selection instanceof IStructuredSelection == false
				|| selection.isEmpty()) {
			return;
		}
		mySelection = (IStructuredSelection) selection;
		mySelectedModelFile = (IFile) ((IStructuredSelection) selection)
				.getFirstElement();
		action.setEnabled(true);
	}

	/**
	 * @generated
	 */
	public void run(IAction action) {
		TransactionalEditingDomain editingDomain = GMFEditingDomainFactory.INSTANCE
				.createEditingDomain();
		ResourceSet resourceSet = editingDomain.getResourceSet();
		EObject diagramRoot = null;
		try {
			Resource resource = resourceSet.getResource(URI
					.createPlatformResourceURI(mySelectedModelFile
							.getFullPath().toString(), true), true);
			diagramRoot = (EObject) resource.getContents().get(0);
		} catch (WrappedException ex) {
			Library07DiagramEditorPlugin
					.getInstance()
					.logError(
							"Unable to load resource: " + mySelectedModelFile.getFullPath().toString(), ex); //$NON-NLS-1$
		}
		if (diagramRoot == null) {
			MessageDialog.openError(myPart.getSite().getShell(), "Error",
					"Model file loading failed");
			return;
		}
		Wizard wizard = new Library07NewDiagramFileWizard(mySelectedModelFile,
				myPart.getSite().getPage(), mySelection, diagramRoot,
				editingDomain);
		IDialogSettings pluginDialogSettings = Library07DiagramEditorPlugin
				.getInstance().getDialogSettings();
		IDialogSettings initDiagramFileSettings = pluginDialogSettings
				.getSection("InisDiagramFile"); //$NON-NLS-1$
		if (initDiagramFileSettings == null) {
			initDiagramFileSettings = pluginDialogSettings
					.addNewSection("InisDiagramFile"); //$NON-NLS-1$
		}
		wizard.setDialogSettings(initDiagramFileSettings);
		wizard.setForcePreviousAndNextButtons(false);
		wizard.setWindowTitle("Initialize new " + LibraryEditPart.MODEL_ID
				+ " diagram file");

		WizardDialog dialog = new WizardDialog(myPart.getSite().getShell(),
				wizard);
		dialog.create();
		dialog.getShell().setSize(Math.max(500, dialog.getShell().getSize().x),
				500);
		dialog.open();
	}

}