EZ-Components

2026-07-25 00:24:35 +00:00 · 2009-02-17 15:27:43 +00:00
parent 359c3c55c9
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+<?php
+/**
+ * File containing the ezcGraphBarChart class
+ *
+ * @package Graph
+ * @version 1.3
+ * @copyright Copyright (C) 2005-2008 eZ systems as. All rights reserved.
+ * @license http://ez.no/licenses/new_bsd New BSD License
+ */
+/**
+ * Class for bar charts. Can make use of an unlimited amount of datasets and 
+ * will display them as bars by default.
+ * X axis:
+ *  - Labeled axis
+ *  - Boxed axis label renderer
+ * Y axis:
+ *  - Numeric axis
+ *  - Exact axis label renderer
+ *
+ * <code>
+ *  // Create a new line chart
+ *  $chart = new ezcGraphBarChart();
+ *
+ *  // Add data to line chart
+ *  $chart->data['sample dataset'] = new ezcGraphArrayDataSet(
+ *      array(
+ *          '100' => 1.2,
+ *          '200' => 43.2,
+ *          '300' => -34.14,
+ *          '350' => 65,
+ *          '400' => 123,
+ *      )   
+ *  );
+ *
+ *  // Render chart with default 2d renderer and default SVG driver
+ *  $chart->render( 500, 200, 'bar_chart.svg' );
+ * </code>
+ *
+ * Each chart consists of several chart elements which represents logical 
+ * parts of the chart and can be formatted independently. The bar chart
+ * consists of:
+ *  - title ( {@link ezcGraphChartElementText} )
+ *  - legend ( {@link ezcGraphChartElementLegend} )
+ *  - background ( {@link ezcGraphChartElementBackground} )
+ *  - xAxis ( {@link ezcGraphChartElementLabeledAxis} )
+ *  - yAxis ( {@link ezcGraphChartElementNumericAxis} )
+ *
+ * The type of the axis may be changed and all elements can be configured by
+ * accessing them as properties of the chart:
+ *
+ * <code>
+ *  $chart->legend->position = ezcGraph::RIGHT;
+ * </code>
+ *
+ * The chart itself also offers several options to configure the appearance. As
+ * bar charts extend line charts the the extended configure options are
+ * available in {@link ezcGraphLineChartOptions} extending the 
+ * {@link ezcGraphChartOptions}.
+ *
+ * @property ezcGraphLineChartOptions $options
+ *           Chart options class
+ *
+ * @version 1.3
+ * @package Graph
+ * @mainclass
+ */
+class ezcGraphBarChart extends ezcGraphLineChart
+{
+ 
+    /**
+     * Constructor
+     * 
+     * @param array $options Default option array
+     * @return void
+     * @ignore
+     */
+    public function __construct( array $options = array() )
+    {
+        parent::__construct();
+
+        $this->elements['xAxis']->axisLabelRenderer = new ezcGraphAxisBoxedLabelRenderer();
+    }
+
+    /**
+     * Returns the default display type of the current chart type.
+     * 
+     * @return int Display type
+     */
+    public function getDefaultDisplayType()
+    {
+        return ezcGraph::BAR;
+    }
+}
+?>