/*
 *  Copyright (c) 2006, 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
 */
package org.eclipse.gmf.examples.design2d.edit.parts;

import org.eclipse.draw2d.FigureUtilities;
import org.eclipse.draw2d.Label;
import org.eclipse.draw2d.geometry.Dimension;
import org.eclipse.draw2d.geometry.Rectangle;
import org.eclipse.gef.EditPart;
import org.eclipse.gef.EditPartFactory;
import org.eclipse.gef.tools.CellEditorLocator;
import org.eclipse.gmf.examples.design2d.part.DesignVisualIDRegistry;
import org.eclipse.gmf.runtime.diagram.ui.editparts.ITextAwareEditPart;
import org.eclipse.gmf.runtime.draw2d.ui.figures.WrapLabel;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.jface.viewers.CellEditor;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Text;

/**
 * @generated
 */
public class DesignEditPartFactory implements EditPartFactory {

	/**
	 * @generated
	 */
	public EditPart createEditPart(EditPart context, Object model) {
		if (model instanceof View) {
			View view = (View) model;
			switch (DesignVisualIDRegistry.getVisualID(view)) {

			case Design2DEditPart.VISUAL_ID:
				return new Design2DEditPart(view);

			case SolidRectangleEditPart.VISUAL_ID:
				return new SolidRectangleEditPart(view);

			case SolidEllipseEditPart.VISUAL_ID:
				return new SolidEllipseEditPart(view);

			case CustomNodeEditPart.VISUAL_ID:
				return new CustomNodeEditPart(view);

			case InnerSolidRectangleEditPart.VISUAL_ID:
				return new InnerSolidRectangleEditPart(view);

			case InnerSolidEllipseEditPart.VISUAL_ID:
				return new InnerSolidEllipseEditPart(view);

			case SolidLineEditPart.VISUAL_ID:
				return new SolidLineEditPart(view);

			case SolidLineCommentEditPart.VISUAL_ID:
				return new SolidLineCommentEditPart(view);
			}
		}
		return createUnrecognizedEditPart(context, model);
	}

	/**
	 * @generated
	 */
	private EditPart createUnrecognizedEditPart(EditPart context, Object model) {
		// Handle creation of unrecognized child node EditParts here
		return null;
	}

	/**
	 * @generated
	 */
	public static CellEditorLocator getTextCellEditorLocator(ITextAwareEditPart source) {
		if (source.getFigure() instanceof WrapLabel)
			return new TextCellEditorLocator((WrapLabel) source.getFigure());
		else {
			return new LabelCellEditorLocator((Label) source.getFigure());
		}
	}

	/**
	 * @generated
	 */
	static private class TextCellEditorLocator implements CellEditorLocator {

		/**
		 * @generated
		 */
		private WrapLabel wrapLabel;

		/**
		 * @generated
		 */
		public TextCellEditorLocator(WrapLabel wrapLabel) {
			this.wrapLabel = wrapLabel;
		}

		/**
		 * @generated
		 */
		public WrapLabel getWrapLabel() {
			return wrapLabel;
		}

		/**
		 * @generated
		 */
		public void relocate(CellEditor celleditor) {
			Text text = (Text) celleditor.getControl();
			Rectangle rect = getWrapLabel().getTextBounds().getCopy();
			getWrapLabel().translateToAbsolute(rect);
			if (getWrapLabel().isTextWrapped() && getWrapLabel().getText().length() > 0) {
				rect.setSize(new Dimension(text.computeSize(rect.width, SWT.DEFAULT)));
			} else {
				int avr = FigureUtilities.getFontMetrics(text.getFont()).getAverageCharWidth();
				rect.setSize(new Dimension(text.computeSize(SWT.DEFAULT, SWT.DEFAULT)).expand(avr * 2, 0));
			}
			if (!rect.equals(new Rectangle(text.getBounds()))) {
				text.setBounds(rect.x, rect.y, rect.width, rect.height);
			}
		}

	}

	/**
	 * @generated
	 */
	private static class LabelCellEditorLocator implements CellEditorLocator {

		/**
		 * @generated
		 */
		private Label label;

		/**
		 * @generated
		 */
		public LabelCellEditorLocator(Label label) {
			this.label = label;
		}

		/**
		 * @generated
		 */
		public Label getLabel() {
			return label;
		}

		/**
		 * @generated
		 */
		public void relocate(CellEditor celleditor) {
			Text text = (Text) celleditor.getControl();
			Rectangle rect = getLabel().getTextBounds().getCopy();
			getLabel().translateToAbsolute(rect);
			int avr = FigureUtilities.getFontMetrics(text.getFont()).getAverageCharWidth();
			rect.setSize(new Dimension(text.computeSize(SWT.DEFAULT, SWT.DEFAULT)).expand(avr * 2, 0));
			if (!rect.equals(new Rectangle(text.getBounds()))) {
				text.setBounds(rect.x, rect.y, rect.width, rect.height);
			}
		}
	}
}