/*
 * (c) Copyright 2010-2011 AgileBirds
 *
 * This file is part of OpenFlexo.
 *
 * OpenFlexo is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * OpenFlexo 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with OpenFlexo. If not, see <http://www.gnu.org/licenses/>.
 *
 */
package org.openflexo.components.tabularbrowser;

import java.util.ArrayList;
import java.util.List;
import java.util.logging.Logger;

import org.openflexo.components.browser.BrowserConfiguration;
import org.openflexo.components.browser.BrowserElement;
import org.openflexo.components.browser.ConfigurableProjectBrowser;
import org.openflexo.components.tabular.model.AbstractColumn;
import org.openflexo.components.tabular.model.EditableColumn;
import org.openflexo.foundation.DataFlexoObserver;
import org.openflexo.foundation.DataModification;
import org.openflexo.foundation.FlexoModelObject;
import org.openflexo.foundation.FlexoObservable;

/**
 * 
 * A TabularBrowserModel defines a model that will be used to build a JTable or TabularBrowserView.
 * 
 * @author sguerin
 */
public class TabularBrowserModel extends ConfigurableProjectBrowser implements TreeTableModel, DataFlexoObserver {

	private static final Logger logger = Logger.getLogger(TabularBrowserModel.class.getPackage().getName());

	private List<AbstractColumn<?, ?>> _columns;

	private int _rowHeight = -1;

	public TabularBrowserModel(BrowserConfiguration configuration, String browsableColumnName, int browsableColumnWidth) {
		this(configuration, true, browsableColumnName, browsableColumnWidth);
	}

	public TabularBrowserModel(BrowserConfiguration configuration, boolean initNow, String browsableColumnName, int browsableColumnWidth) {
		super(configuration, null, initNow);
		_columns = new ArrayList<AbstractColumn<?, ?>>();
		addToColumns(_browsableColumn = new TreeColumn(browsableColumnName, browsableColumnWidth));
	}

	private TreeColumn _browsableColumn;

	protected TreeColumn getBrowsableColumn() {
		return _browsableColumn;
	}

	protected class TreeColumn extends AbstractColumn<FlexoModelObject, TreeTableModel> implements
			EditableColumn<FlexoModelObject, TreeTableModel> {
		public TreeColumn(String title, int defaultWidth) {
			this(title, defaultWidth, true);
		}

		public TreeColumn(String title, int defaultWidth, boolean isResizable) {
			this(title, defaultWidth, isResizable, true);
		}

		public TreeColumn(String title, int defaultWidth, boolean isResizable, boolean displayTitle) {
			super(title, defaultWidth, isResizable, displayTitle);
		}

		@Override
		public Class<TreeTableModel> getValueClass() {
			return TreeTableModel.class;
		}

		@Override
		public TreeTableModel getValueFor(FlexoModelObject object) {
			return TabularBrowserModel.this;
		}

		@Override
		public void setValueFor(FlexoModelObject object, TreeTableModel value) {
			// We dont care !
		}

		@Override
		public boolean isCellEditableFor(FlexoModelObject object) {
			return true;
		}

		@Override
		public String toString() {
			return "TreeColumn " + "@" + Integer.toHexString(hashCode());
		}

	}

	@Override
	public Object getRoot() {
		return getRootElement();
	}

	@Override
	public int getRowHeight() {
		return _rowHeight;
	}

	@Override
	public void setRowHeight(int aRowHeight) {
		_rowHeight = aRowHeight;
	}

	public void addToColumns(AbstractColumn<?, ?> aColumn) {
		_columns.add(aColumn);
	}

	public void insertColumnAtIndex(AbstractColumn<?, ?> aColumn, int index) {
		_columns.add(index, aColumn);
	}

	public void removeFromColumns(AbstractColumn<?, ?> aColumn) {
		_columns.remove(aColumn);
	}

	public AbstractColumn<?, ?> columnAt(int index) {
		return _columns.get(index);
	}

	public int getTotalPreferredWidth() {
		int returned = 0;
		for (int i = 0; i < getColumnCount(); i++) {
			returned += getDefaultColumnSize(i);
		}
		return returned;
	}

	@Override
	public int getColumnCount() {
		return _columns.size();
	}

	@Override
	public String getColumnName(int col) {
		AbstractColumn<?, ?> column = columnAt(col);
		if (column != null) {
			return column.getLocalizedTitle();
		}
		return "???";
	}

	public int getDefaultColumnSize(int col) {
		AbstractColumn<?, ?> column = columnAt(col);
		if (column != null) {
			return column.getDefaultWidth();
		}
		return 75;
	}

	public boolean getColumnResizable(int col) {
		AbstractColumn<?, ?> column = columnAt(col);
		if (column != null) {
			return column.getResizable();
		}
		return true;
	}

	@Override
	public Object getValueAt(Object el, int col) {
		if (el instanceof BrowserElement) {
			BrowserElement element = (BrowserElement) el;
			AbstractColumn column = columnAt(col);
			return column.getValueFor(element.getObject());
		}
		logger.warning("TabularBrowserModel shound contain only BrowserElement instances " + el);
		return null;
	}

	@Override
	public Object getChild(Object parent, int index) {
		if (parent instanceof BrowserElement) {
			BrowserElement element = (BrowserElement) parent;
			return element.getChildAt(index);
		}
		logger.warning("TabularBrowserModel shound contain only BrowserElement instances " + parent);
		return null;
	}

	@Override
	public int getChildCount(Object parent) {
		if (parent instanceof BrowserElement) {
			BrowserElement element = (BrowserElement) parent;
			return element.getChildCount();
		}
		logger.warning("TabularBrowserModel shound contain only BrowserElement instances " + parent);
		return 0;
	}

	@Override
	public Class<?> getColumnClass(int col) {
		return columnAt(col).getValueClass();
	}

	@Override
	public boolean isCellEditable(Object element, int col) {
		if (element instanceof BrowserElement) {
			AbstractColumn column = columnAt(col);
			return column.isCellEditableFor(((BrowserElement) element).getObject());
		}
		return false;
	}

	@Override
	public void setValueAt(Object aValue, Object el, int col) {
		if (el instanceof BrowserElement) {
			BrowserElement element = (BrowserElement) el;
			AbstractColumn column = columnAt(col);
			if (column.isCellEditableFor(element.getObject()) && column instanceof EditableColumn) {
				((EditableColumn) column).setValueFor(element.getObject(), aValue);
				return;
			}
		}
		logger.warning("TabularBrowserModel shound contain only BrowserElement instances " + el);
	}

	@Override
	public void update(FlexoObservable observable, DataModification dataModification) {
		// TODO Auto-generated method stub
	}

	@Override
	public void update() {
		logger.info("Update called");
		super.update();
	}

}