/*
 *  Freeplane - mind map editor
 *  Copyright (C) 2008 Dimitry Polivaev
 *
 *  This file author is Dimitry Polivaev
 *
 *  This program 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 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.freeplane.view.swing.map.attribute;

import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.geom.AffineTransform;
import java.net.URI;
import javax.swing.Icon;
import javax.swing.JTable;
import javax.swing.UIManager;
import javax.swing.table.DefaultTableCellRenderer;

import org.freeplane.core.util.HtmlUtils;
import org.freeplane.core.util.TextUtils;
import org.freeplane.features.attribute.IAttributeTableModel;
import org.freeplane.features.text.HighlightedTransformedObject;
import org.freeplane.features.text.TextController;

class AttributeTableCellRenderer extends DefaultTableCellRenderer {
	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	static final float ZOOM_CORRECTION_FACTOR = 0.97F;
	private boolean isPainting;
	private float zoom;
	private Color borderColor;

	/*
	 * (non-Javadoc)
	 * @see javax.swing.JComponent#getHeight()
	 */
	@Override
	public int getHeight() {
		if (isPainting) {
			if (zoom != 1F) {
				return (int) (super.getHeight() / zoom);
			}
		}
		return super.getHeight();
	}

	@Override
	public Component getTableCellRendererComponent(final JTable table, final Object value, final boolean isSelected,
	                                               final boolean hasFocus, final int row, final int column) {
		final Component rendererComponent = super.getTableCellRendererComponent(table, value, hasFocus, isSelected, row,
		    column);
		if (hasFocus) {
			setBorder(UIManager.getBorder("Table.focusCellHighlightBorder"));
		}
		zoom = ((AttributeTable) table).getZoom();
	    final IAttributeTableModel attributeTableModel = (IAttributeTableModel) table.getModel();
		final String originalText = value == null ? null : value.toString();
		String text = originalText;
		borderColor = null;
		Icon icon;
		if (column == 1 && value != null) {
			try {
				// evaluate values only
				final TextController textController = TextController.getController();
				Object transformedObject = textController.getTransformedObject(value, attributeTableModel.getNode(), null);
				text = transformedObject.toString();
				if (transformedObject instanceof HighlightedTransformedObject && TextController.isMarkTransformedTextSet()) {
					borderColor = Color.GREEN;
				}
			}
			catch (Exception e) {
				text = TextUtils.format("MainView.errorUpdateText", originalText, e.getLocalizedMessage());
				borderColor = Color.RED;
			}
			if(value instanceof URI){
	                icon = ((AttributeTable)table).getLinkIcon((URI) value);
			}
			else{
				icon = null;
			}
		}
		else{
			icon = null;
		}
		if(icon != getIcon()){
			setIcon(icon);
		}
		setText(text);
		if(text != originalText){
			final String toolTip = HtmlUtils.isHtmlNode(originalText) ? text : HtmlUtils.plainToHTML(originalText);
			setToolTipText(toolTip);
		}
		else{
			final int prefWidth = getPreferredSize().width;
			final int width = table.getColumnModel().getColumn(column).getWidth();
			if (prefWidth > width) {
				final String toolTip = HtmlUtils.isHtmlNode(text) ? text : HtmlUtils.plainToHTML(text);
				setToolTipText(toolTip);
			}
			else {
				setToolTipText(null);
			}
		}
		return rendererComponent;
	}

	/*
	 * (non-Javadoc)
	 * @see javax.swing.JComponent#getWidth()
	 */
	@Override
	public int getWidth() {
		if (isPainting) {
			if (zoom != 1F) {
				return (int) (0.99f + super.getWidth() / zoom);
			}
		}
		return super.getWidth();
	}

	@Override
	public void paint(final Graphics g) {
		final Graphics2D g2 = (Graphics2D) g;
		if (zoom != 1F) {
			zoom *= AttributeTableCellRenderer.ZOOM_CORRECTION_FACTOR;
			final AffineTransform transform = g2.getTransform();
			g2.scale(zoom, zoom);
			isPainting = true;
			super.paint(g);
			isPainting = false;
			g2.setTransform(transform);
		}
		else {
			super.paint(g);
		}
		if(borderColor != null){
			final Color color = g.getColor();
			g.setColor(borderColor);
			g.drawRect(0, 0, getWidth()-1, getHeight()-1);
			g.setColor(color);
		}
	}
}