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<?php
/*
Phoronix Test Suite
URLs: http://www.phoronix.com, http://www.phoronix-test-suite.com/
Copyright (C) 2008, Phoronix Media
Copyright (C) 2008, Michael Larabel
pts_BarGraph.php: The bar graph object that extends pts_Graph.php.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
class pts_CandleStickGraph extends pts_BarGraph
{
public function __construct($title, $sub_title, $y_axis_title)
{
parent::__construct($title, $sub_title, $y_axis_title);
$this->graph_type = "CANDLE_STICK_GRAPH";
}
protected function render_graph_candle_sticks()
{
$bar_count = count($this->graph_data_raw);
$bar_width = floor($this->identifier_width / $bar_count) - ($bar_count * 16);
for($i_o = 0; $i_o < $bar_count; $i_o++)
{
$paint_color = $this->next_paint_color();
for($i = 0; $i < count($this->graph_data_raw[$i_o]); $i++)
{
$run_values_r = explode(":", $this->graph_data_raw[$i_o][$i]);
$start_value = $run_values_r[0];
$end_value = $run_values_r[(count($run_values_r) - 1)];
$average_value = array_sum($run_values_r) / count($run_values_r);
sort($run_values_r);
$low_value = $run_values_r[0];
$high_value = $run_values_r[(count($run_values_r) - 1)];
$px_bound_left = $this->graph_left_start + ($this->identifier_width * $i) + ($bar_width * $i_o) + 8;
$px_bound_center = $px_bound_left + round($bar_width / 2);
$px_bound_right = $px_bound_left + $bar_width;
$top_diff = $this->graph_top_end - $this->graph_top_start;
$plot_wick_lowest = $this->graph_top_end + 1 - round(($low_value / $this->graph_maximum_value) * $top_diff);
$plot_wick_highest = $this->graph_top_end + 1 - round(($high_value / $this->graph_maximum_value) * $top_diff);
$plot_body_start = $this->graph_top_end + 1 - round(($start_value / $this->graph_maximum_value) * $top_diff);
$plot_body_end = $this->graph_top_end + 1 - round(($end_value / $this->graph_maximum_value) * $top_diff);
if($start_value > $end_value)
{
$body_color = $this->graph_color_body;
$plot_body_high = $plot_body_start;
$plot_body_low = $plot_body_end;
}
else
{
$body_color = $paint_color;
$plot_body_low = $plot_body_start;
$plot_body_high = $plot_body_end;
}
$this->graph_image->draw_line($px_bound_center, $plot_wick_lowest, $px_bound_center, $plot_wick_highest, $this->graph_color_body_light, 1);
$this->graph_image->draw_rectangle_border($px_bound_left, $plot_body_low, $px_bound_right, $plot_body_high, $this->graph_color_body_light);
$this->graph_image->draw_rectangle($px_bound_left + 1, $plot_body_low - 1, $px_bound_right - 1, $plot_body_high + 1, $body_color);
}
}
}
protected function render_graph_result()
{
if(count($this->graph_data_raw) == 0 || empty($this->graph_data_raw[0]))
{
$this->render_graph_bars();
}
else
{
$this->render_graph_candle_sticks();
}
}
}
?>
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