/*******************************************************************************
 * <copyright>
 *
 * Copyright (c) 2005, 2010 SAP AG.
 * 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:
 *    SAP AG - initial API, implementation and documentation
 *
 * </copyright>
 *
 *******************************************************************************/
package org.eclipse.graphiti.examples.common.perspective;

import org.eclipse.graphiti.ui.internal.editor.ThumbNailView;
import org.eclipse.ui.IFolderLayout;
import org.eclipse.ui.IPageLayout;
import org.eclipse.ui.IPerspectiveFactory;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.views.IViewDescriptor;

/**
 * The Class GFPerspective. Defines the Eclipse perspective for testing
 * Graphiti.
 */
@SuppressWarnings("restriction")
public class GFPerspective implements IPerspectiveFactory {

	/**
	 * Instantiates a new perspective.
	 */
	public GFPerspective() {
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.eclipse.ui.IPerspectiveFactory#createInitialLayout(org.eclipse.ui
	 * .IPageLayout)
	 */
	public void createInitialLayout(IPageLayout layout) {
		defineActions(layout);
		defineLayout(layout);
	}

	/**
	 * Defines the initial actions for a page.
	 * 
	 * @param layout
	 *            The layout we are filling
	 */
	private void defineActions(IPageLayout layout) {
		// Add "new wizards".
		layout.addNewWizardShortcut("org.eclipse.ui.wizards.new.folder");//$NON-NLS-1$
		layout.addNewWizardShortcut("org.eclipse.ui.wizards.new.file");//$NON-NLS-1$

		// Add "show views".
		layout.addShowViewShortcut(IPageLayout.ID_PROJECT_EXPLORER);
		layout.addShowViewShortcut(IPageLayout.ID_BOOKMARKS);
		layout.addShowViewShortcut(IPageLayout.ID_OUTLINE);
		layout.addShowViewShortcut(IPageLayout.ID_PROP_SHEET);
		layout.addShowViewShortcut(IPageLayout.ID_PROBLEM_VIEW);
		if (isViewAvailable(IPageLayout.ID_PROGRESS_VIEW)) {
			layout.addShowViewShortcut(IPageLayout.ID_PROGRESS_VIEW);
		}
		layout.addShowViewShortcut(IPageLayout.ID_TASK_LIST);

		layout.addActionSet(IPageLayout.ID_NAVIGATE_ACTION_SET);
	}

	/**
	 * Defines the initial layout for a page.
	 * 
	 * @param layout
	 *            The layout we are filling
	 */
	private void defineLayout(IPageLayout layout) {
		// Editors are placed for free.
		String editorArea = layout.getEditorArea();

		// Top left.
		IFolderLayout topLeft = layout.createFolder("topLeft", IPageLayout.LEFT, (float) 0.26, editorArea);//$NON-NLS-1$
		if (isViewAvailable("org.eclipse.jdt.ui.PackageExplorer")) { //$NON-NLS-1$
			topLeft.addView("org.eclipse.jdt.ui.PackageExplorer"); //$NON-NLS-1$
		}
		if (isViewAvailable(IPageLayout.ID_PROJECT_EXPLORER)) {
			topLeft.addView(IPageLayout.ID_PROJECT_EXPLORER);
		}
		topLeft.addPlaceholder(IPageLayout.ID_BOOKMARKS);

		// Bottom left.
		IFolderLayout bottomLeft = layout.createFolder("bottomLeft", IPageLayout.BOTTOM, (float) 0.50,//$NON-NLS-1$
				"topLeft");//$NON-NLS-1$
		if (isViewAvailable(IPageLayout.ID_OUTLINE)) {
			bottomLeft.addView(IPageLayout.ID_OUTLINE);
		}
		if (isViewAvailable(ThumbNailView.VIEW_ID)) {
			bottomLeft.addView(ThumbNailView.VIEW_ID); //$NON-NLS-1$
		}

		// Bottom right.
		IFolderLayout bottomRight = layout.createFolder("bottomRight", IPageLayout.BOTTOM, (float) 0.66,//$NON-NLS-1$
				editorArea);
		if (isViewAvailable("org.eclipse.pde.runtime.LogView")) { //$NON-NLS-1$
			bottomRight.addView("org.eclipse.pde.runtime.LogView"); //$NON-NLS-1$
		}
		if (isViewAvailable(IPageLayout.ID_PROP_SHEET)) {
			bottomRight.addView(IPageLayout.ID_PROP_SHEET);
		}
		if (isViewAvailable(IPageLayout.ID_PROBLEM_VIEW)) {
			bottomRight.addView(IPageLayout.ID_PROBLEM_VIEW);
		}
	}

	private static boolean isViewAvailable(String viewId) {
		IViewDescriptor viewDesc = PlatformUI.getWorkbench().getViewRegistry().find(viewId);
		return viewDesc != null;
	}
}