Text labels in or above the bar
| protected BarLabel ( $value, &$bar, $offset_x = null ) |
/**
* Overridden to prevent drawing behind higher bars
* $offset_y should be true for inner bars
*/
protected function BarLabel($value, &$bar, $offset_x = null)
{
list($text_size) = $this->TextSize(strlen($value), $this->bar_label_font_size, $this->bar_label_font_adjust);
$space = $this->bar_label_space;
if ($offset_x) {
// bar too small, would be above
if ($bar['width'] < $text_size + 2 * $space) {
return parent::BarLabel($value, $bar, ($bar['width'] + $text_size) / 2);
}
// option set to above
if ($this->bar_label_position == 'above') {
$this->bar_label_position = 'top';
$label = parent::BarLabel($value, $bar);
$this->bar_label_position = 'above';
return $label;
}
}
return parent::BarLabel($value, $bar);
}
/**
* Overridden to prevent drawing behind higher bars
* $offset_x should be true for inner bars
*/
protected function BarLabel(&$item, &$bar, $offset_x = null)
{
$content = $item->Data('label');
if (is_null($content)) {
$content = $this->units_before_label . Graph::NumString($item->value) . $this->units_label;
}
list($text_size) = $this->TextSize($content, $this->bar_label_font_size, $this->bar_label_font_adjust, $this->encoding);
$space = $this->bar_label_space;
if ($offset_x) {
// bar too small, would be above
if ($bar['width'] < $text_size + 2 * $space) {
return parent::BarLabel($item, $bar, ($bar['width'] + $text_size) / 2);
}
// option set to above
if ($this->bar_label_position == 'above') {
$this->bar_label_position = 'top';
$label = parent::BarLabel($item, $bar);
$this->bar_label_position = 'above';
return $label;
}
}
return parent::BarLabel($item, $bar);
}
