+ * @param minNumberOfPoint Minimum number of points (1 for bars, 2 for lines).
+ *
+ * @return true if data set empty
+ */
+ protected function isEmptyDataSet($minNumberOfPoint) {
+ if ($this->dataSet instanceof LibchartXYDataSet) {
+ $pointList = $this->dataSet->getPointList();
+ $pointCount = count($pointList);
+ return $pointCount < $minNumberOfPoint;
+ } else if ($this->dataSet instanceof LibchartXYSeriesDataSet) {
+ $serieList = $this->dataSet->getSerieList();
+ reset($serieList);
+ if (count($serieList) > 0) {
+ $serie = current($serieList);
+ $pointList = $serie->getPointList();
+ $pointCount = count($pointList);
+ return $pointCount < $minNumberOfPoint;
+ }
+ } else {
+ die("Error: unknown dataset type");
+ }
+ }
+
+ /**
+ * Checks the data model before rendering the graph.
+ */
+ protected function checkDataModel() {
+ // Check if a dataset was defined
+ if (!$this->dataSet) {
+ die("Error: No dataset defined.");
+ }
+
+ // Bar charts accept both XYDataSet and XYSeriesDataSet
+ if ($this->dataSet instanceof LibchartXYDataSet) {
+ // The dataset contains only one serie
+ $this->hasSeveralSerie = false;
+ } else if ($this->dataSet instanceof LibchartXYSeriesDataSet) {
+ // Check if each series has the same number of points
+ unset($lastPointCount);
+ $serieList = $this->dataSet->getSerieList();
+ for ($i = 0; $i < count($serieList); $i++) {
+ $serie = $serieList[$i];
+ $pointCount = count($serie->getPointList());
+ if (isset($lastPointCount) && $pointCount != $lastPointCount) {
+ die("Error: serie <" . $i . "> doesn't have the same number of points as last serie (last one: <" . $lastPointCount. ">, this one: <" . $pointCount. ">).");
+ }
+ $lastPointCount = $pointCount;
+ }
+
+ // The dataset contains several series
+ $this->hasSeveralSerie = true;
+ } else {
+ die("Error: Bar chart accept only XYDataSet and XYSeriesDataSet");
+ }
+ }
+
+ /**
+ * Return the data as a series list (for consistency).
+ *
+ * @return List of series
+ */
+ protected function getDataAsSerieList() {
+ // Get the data as a series list
+ $serieList = null;
+ if ($this->dataSet instanceof LibchartXYSeriesDataSet) {
+ $serieList = $this->dataSet->getSerieList();
+ } else if ($this->dataSet instanceof LibchartXYDataSet) {
+ $serieList = array();
+ array_push($serieList, $this->dataSet);
+ }
+
+ return $serieList;
+ }
+
+ /**
+ * Return the first serie of the list, or the dataSet itself if there is no serie.
+ *
+ * @return XYDataSet
+ */
+ protected function getFirstSerieOfList() {
+ $pointList = null;
+ if ($this->dataSet instanceof LibchartXYSeriesDataSet) {
+ // For a series dataset, print the legend from the first serie
+ $serieList = $this->dataSet->getSerieList();
+ reset($serieList);
+ $serie = current($serieList);
+ $pointList = $serie->getPointList();
+ } else if ($this->dataSet instanceof LibchartXYDataSet) {
+ $pointList = $this->dataSet->getPointList();
+ }
+
+ return $pointList;
+ }
+ }
+?>
\ No newline at end of file
Property changes on: branches/RC/core/units/general/libchart/classes/view/chart/BarChart.php