_plotdata);
}
public function current() {
return current($this->_plotdata);
}
public function key() {
return key($this->_plotdata);
}
public function next() {
return next($this->_plotdata);
}
public function rewind() {
reset($this->_plotdata);
}
public function valid() {
return key($this->_plotdata) ? TRUE : FALSE;
}
public function __call($name,$args) {
switch ($name) {
case 'title': $this->_title = array_shift($args);
break;
default:
throw new Kohana_Exception('Unknown method :name',array(':name'=>$name));
}
return $this;
}
/**
* Render the URL that generates the graph
*/
final public function __toString() {
try {
return (string)$this->render();
} catch (Exception $e) {
echo Debug::vars($e);
}
}
/**
* Pick the driver that will render the graph
* @param $class The child class to invoke
*/
final public static function factory($class) {
$c = sprintf('%s_%s',get_called_class(),$class);
if (! class_exists($c))
throw new Kohana_Exception('Unknown Google Chart Type :class',array(':class'=>$class));
else
return new $c();
}
// Our child class should define how to render as a string
abstract public function render();
/**
* Record one series of data
* @param $axis Axis used and legend title, eg: (yr->"Right Y",yl->"Left Y")
* @param $data Data for Axis in the format ("x label"=>value);
*
* Example:
* $this->data('yl'=>'Base Down Peak',array('11-12'=>1,'11-11'=>2));
*/
public function data(array $axis,array $data) {
// Some sanity checking
if (count($axis) != 1)
throw new Kohana_Exception('We can only take 1 series at time.');
// This should only iterate once
foreach ($axis as $key => $l) {
if (! in_array($key,array('yr','yl')))
throw new Kohaan_Exception('Unknown AXIS :axis',array(':axis'=>$key));
$this->_axis[$l] = $key;
$this->_data[$l] = $data[$l];
// Upate our plot data
foreach ($data[$l] as $k=>$v)
$this->_plotdata[$k][$l] = $v;
ksort($this->_plotdata);
$this->_max[$l] = max($data[$l]);
}
return $this;
}
/**
* Return the colors that will be used for this series
*/
protected function seriescolors() {
return array_slice($this->series_colors,0,count($this->_axis));
}
/**
* Render the chart data in a table format
*/
public function table($vertical=TRUE,$class=array()) {
if (! $this->_data)
return sprintf('',_('No Data'));
$output = sprintf('',
isset($class['table']) ? $class['table'] : 'class="google-data-table"');
if ($vertical) {
$output .= '';
$output .= '| | ';
foreach ($this->_axis as $l => $axis)
$output .= sprintf('%s | ',$l);
$output .= '
';
foreach ($this as $k => $details) {
$output .= '';
$output .= sprintf('| %s | ',$k);
foreach ($this->_axis as $l => $axis)
$output .= sprintf('%s | ',$details[$l]);
$output .= '
';
}
// Horizontal table
} else {
$output .= '';
$output .= '| | ';
foreach ($this as $k => $details)
$output .= sprintf('%s | ',$k);
$output .= '
';
foreach ($this->_axis as $l => $axis) {
$output .= '';
$output .= sprintf('| %s | ',$l);
foreach ($this as $k => $v)
$output .= sprintf('%s | ',$v[$l]);
$output .= '
';
}
}
$output .= '
';
return $output;
}
}
?>