line_chart.php

<?php
/**
 * qatool
 *
 * This file is part of qatool.
 *
 * qatool 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; version 3 of the License.
 *
 * qatool 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
 * qatool; if not, write to the Free Software Foundation, Inc., 51 Franklin St,
 * Fifth Floor, Boston, MA  02110-1301  USA
 *
 * @package Core
 * @version $Revision$
 * @license http://www.gnu.org/licenses/gpl-3.0.txt GPL
 */

/**
 * Line chart base class
 * 
 * @package Core
 * @version $Revision$
 * @license http://www.gnu.org/licenses/gpl-3.0.txt GPL
 */
class LineChart extends ezcGraphLineChart
{
    /**
     * Construct pie chart
     *
     * Construct pie chart and assign common setting to fit it to arbit layout
     * settings
     *
     * @return void
     */
    public function __construct( $title )
    {
        parent::__construct();

        // Use specific arbit palette
        $this->palette = new ChartPalette();

        // Use 2D renderer by default for line charts
        $this->renderer = new ezcGraphRenderer2d();

        // More beautiful formatting for legend
        $this->renderer->options->dataBorder             = 0;
        $this->renderer->options->legendSymbolGleam      = .3;
        $this->renderer->options->legendSymbolGleamSize  = .9;
        $this->renderer->options->legendSymbolGleamColor = '#FFFFFF';

        // Line chart formatting options
        $this->options->fillLines              = 255;
        $this->renderer->options->shortAxis    = true;
        $this->renderer->options->axisEndStyle = ezcGraph::NO_SYMBOL;

        // Include SVG font for more precise text rendering
        $this->options->font = __DIR__ . '/font.svg';

        // Line chart specific options
        $this->options->lineThickness = 2;

        $this->options->highlightSize = 12;
        $this->options->highlightFont->background = '#eeeeef80';
        $this->options->highlightFont->border = '#babdb6';
        $this->options->highlightFont->borderWidth = 1;

        $this->legend->position = ezcGraph::BOTTOM;
        $this->legend->borderWidth = 1;

        $this->title->borderWidth = 1;
        $this->title = $title;

        $this->background->image    = __DIR__ . '/chart_background.png';
        $this->background->repeat   = ezcGraph::NO_REPEAT;
        $this->background->position = ezcGraph::CENTER | ezcGraph::MIDDLE;

        $this->xAxis = new ezcGraphChartElementDateAxis();
        $this->xAxis->axisLabelRenderer = new ezcGraphAxisCenteredLabelRenderer();

        $this->yAxis->axisLabelRenderer = new ezcGraphAxisCenteredLabelRenderer();
        $this->yAxis->font->maxFontSize = 10;
    }
}