/**
 * Copyright 2004-2016 Riccardo Solmi. All rights reserved.
 * This file is part of the Whole Platform.
 *
 * The Whole Platform is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * The Whole Platform is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with the Whole Platform. If not, see <http://www.gnu.org/licenses/>.
 */
package org.whole.lang.ui.figures;

import org.eclipse.draw2d.IFigure;
import org.eclipse.draw2d.LayoutManager;
import org.eclipse.draw2d.RectangleFigure;
import org.eclipse.draw2d.Shape;
import org.eclipse.draw2d.TreeSearch;
import org.whole.lang.ui.layout.EntityLayoutAdapter;
import org.whole.lang.ui.layout.IEntityLayout;
import org.whole.lang.ui.layout.ITabularLayoutClient;
import org.whole.lang.ui.layout.ITabularLayoutServer;
import org.whole.lang.ui.treesearch.DelegatingInteractiveTreeSearch;
import org.whole.lang.ui.treesearch.ITreeSearch;

/**
 * @author Enrico Persiani
 */
public abstract class AbstractEntityShapeFigure extends Shape implements IEntityFigure {
	//TODO begin code duplicated in EntityRectangleFigure, EntityFigure, EntityButton, EntityToggle, EntityLabel
		//NB use RectangleFigure.MAX_FLAG instead of Figure.MAX_FLAG
		public static final int
		FLAG_INTERACTIVE_EDIT = RectangleFigure.MAX_FLAG << 1, //enables selection, dnD, delete
		FLAG_INTERACTIVE_BROWSE = RectangleFigure.MAX_FLAG << 2, //enables text editing and clickables
		FLAG_INTERACTIVE_INHERITED = RectangleFigure.MAX_FLAG << 3; //overrides both target and edit flags
		public static int MAX_FLAG = FLAG_INTERACTIVE_INHERITED;
//		FLAG_AUTORESIZE_CHILDREN = Figure.MAX_FLAG << 1,
//		FLAG_FLEXIBLE_WIDTH = Figure.MAX_FLAG << 2,
//		FLAG_FLEXIBLE_HEIGHT = Figure.MAX_FLAG << 3,
//		FLAG_FLEXIBLE_TOP = Figure.MAX_FLAG << 4,
//		FLAG_FLEXIBLE_LEFT = Figure.MAX_FLAG << 5,
//		FLAG_FLEXIBLE_BOTTOM = Figure.MAX_FLAG << 6,
//		FLAG_FLEXIBLE_RIGHT = Figure.MAX_FLAG << 7;

		{
			setInteractiveEdit(true);
			setInteractiveBrowse(true);
			setInteractiveInherited(true);
		}

		public boolean isInteractiveEdit() {
			return (flags & FLAG_INTERACTIVE_EDIT) != 0;
		}
		public void setInteractiveEdit(boolean interactiveEdit) {
			if (isInteractiveEdit() == interactiveEdit)
				return;
			setFlag(FLAG_INTERACTIVE_EDIT, interactiveEdit);
		}
		public boolean isInteractiveBrowse() {
			return (flags & FLAG_INTERACTIVE_BROWSE) != 0;
		}
		public void setInteractiveBrowse(boolean interactiveBrowse) {
			if (isInteractiveBrowse() == interactiveBrowse)
				return;
			setFlag(FLAG_INTERACTIVE_BROWSE, interactiveBrowse);
		}
		public boolean isInteractiveInherited() {
			return (flags & FLAG_INTERACTIVE_INHERITED) != 0;
		}
		public void setInteractiveInherited(boolean interactiveInherited) {
			if (isInteractiveInherited() == interactiveInherited)
				return;
			setFlag(FLAG_INTERACTIVE_INHERITED, interactiveInherited);
		}

		@Override
		public IFigure findFigureAt(int x, int y, TreeSearch search) {
			return super.findFigureAt(x, y,
					search instanceof ITreeSearch ? search : new DelegatingInteractiveTreeSearch(search));
		}
	//TODO end

		public int getIndent() {
			return (getSize().width-1)/2;
		}
		public int getAscent() {
			return (getSize().height-1)/2;
		}

		@Override
		public IEntityLayout getLayoutManager() {
			return (IEntityLayout) super.getLayoutManager();
		}
		@Override
		public void setLayoutManager(LayoutManager manager) {
			if (!(manager instanceof IEntityLayout))
				manager = new EntityLayoutAdapter(manager) {
					public int getIndent(IFigure container) {
						return ((IEntityFigure) container).getIndent();
					}
					public int getAscent(IFigure container) {
						return ((IEntityFigure) container).getAscent();
					}
				};

			super.setLayoutManager(manager);
		}

		public ITabularLayoutServer getTabularLayoutServer() {
			return null;
		}
		public ITabularLayoutClient getTabularLayoutClient() {
			return ITabularLayoutClient.NULL_TABULAR_LAYOUT_CLIENT;
		}

	//TODO begin AbstractContentPaneFigure
		public int getContentPanesSize() {
			return 1;
		}
		public IEntityFigure getContentPane(int paneIndex) {
			return paneIndex == 0 ? this : null;
		}
		public void setContentPaneVisible(int paneIndex, boolean visible) {
			getContentPane(paneIndex).setVisible(visible);
		}
	//TODO end
}