/*
 * Copyright (c) 2016, MGrossmann
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * * Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * * Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * * Neither the name of the jo-widgets.org nor the
 *   names of its contributors may be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL jo-widgets.org BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 */

package org.jowidgets.nattable.impl.plugin.painter;

import org.eclipse.nebula.widgets.nattable.config.IConfigRegistry;
import org.eclipse.nebula.widgets.nattable.layer.cell.ILayerCell;
import org.eclipse.nebula.widgets.nattable.painter.cell.BackgroundPainter;
import org.eclipse.nebula.widgets.nattable.painter.cell.ICellPainter;
import org.eclipse.nebula.widgets.nattable.style.DisplayMode;
import org.eclipse.swt.graphics.Color;
import org.jowidgets.common.color.IColorConstant;
import org.jowidgets.common.model.ITableCell;
import org.jowidgets.spi.impl.swt.common.color.IColorCache;
import org.jowidgets.spi.impl.swt.common.color.RememberLastColorCache;
import org.jowidgets.spi.impl.swt.common.options.SwtOptions;

final class JoCellBackgroundPainter extends BackgroundPainter {

    private final IColorConstant defaultSelectedBackgroundColor;
    private final IColorCache backgroundColorCache;
    private final IColorCache selectedBackgroundColorCache;

    JoCellBackgroundPainter(final ICellPainter painter) {
        super(painter);
        this.defaultSelectedBackgroundColor = SwtOptions.getTableSelectedBackgroundColor();
        this.backgroundColorCache = new RememberLastColorCache();
        this.selectedBackgroundColorCache = new RememberLastColorCache();
    }

    @Override
    protected Color getBackgroundColour(final ILayerCell cell, final IConfigRegistry configRegistry) {
        final ITableCell tableCell = (ITableCell) cell.getDataValue();

        if (DisplayMode.NORMAL.equals(cell.getDisplayMode())) {
            final IColorConstant backgroundColor = tableCell.getBackgroundColor();
            if (backgroundColor != null) {
                return backgroundColorCache.getColor(backgroundColor);
            }
        }
        else if (DisplayMode.SELECT.equals(cell.getDisplayMode())) {
            IColorConstant selectedBackgroundColor = tableCell.getSelectedBackgroundColor();
            if (selectedBackgroundColor == null) {
                selectedBackgroundColor = defaultSelectedBackgroundColor;
            }
            if (selectedBackgroundColor != null) {
                return selectedBackgroundColorCache.getColor(selectedBackgroundColor);
            }
        }

        return super.getBackgroundColour(cell, configRegistry);
    }

}