Graph::DrawTitle PHP Метод

    protected function DrawTitle()
    {
        // graph_title is available for all graph types
        if (strlen($this->graph_title) <= 0) {
            return '';
        }
        $pos = $this->graph_title_position;
        $text = array('font-size' => $this->graph_title_font_size, 'font-family' => $this->graph_title_font, 'font-weight' => $this->graph_title_font_weight, 'text-anchor' => 'middle', 'fill' => $this->graph_title_colour);
        $lines = $this->CountLines($this->graph_title);
        $title_space = $this->graph_title_font_size * $lines + $this->graph_title_space;
        if ($pos != 'top' && $pos != 'bottom' && $pos != 'left' && $pos != 'right') {
            $pos = 'top';
        }
        $pad_side = 'pad_' . $pos;
        // ensure outside padding is at least the title space
        if ($this->{$pad_side} < $this->graph_title_space) {
            $this->{$pad_side} = $this->graph_title_space;
        }
        if ($pos == 'left') {
            $text['x'] = $this->pad_left + $this->graph_title_font_size;
            $text['y'] = $this->height / 2;
            $text['transform'] = "rotate(270,{$text['x']},{$text['y']})";
        } elseif ($pos == 'right') {
            $text['x'] = $this->width - $this->pad_right - $this->graph_title_font_size;
            $text['y'] = $this->height / 2;
            $text['transform'] = "rotate(90,{$text['x']},{$text['y']})";
        } elseif ($pos == 'bottom') {
            $text['x'] = $this->width / 2;
            $text['y'] = $this->height - $this->pad_bottom - $this->graph_title_font_size * ($lines - 1);
        } else {
            $text['x'] = $this->width / 2;
            $text['y'] = $this->pad_top + $this->graph_title_font_size;
        }
        // increase padding by size of text
        $this->{$pad_side} += $title_space;
        // the Text function will break it into lines
        return $this->Text($this->graph_title, $this->graph_title_font_size, $text);
    }