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<?php
/*
Phoronix Test Suite "Trondheim"
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_BarGraph extends pts_CustomGraph
{
public function __construct($Title, $SubTitle, $YTitle)
{
parent::__construct($Title, $SubTitle, $YTitle);
$this->graph_type = "BAR_GRAPH";
}
protected function render_graph_identifiers()
{
$identifier_count = count($this->graph_identifiers);
$graph_width = $this->graph_left_end - $this->graph_left_start;
$identifier_width = ($this->graph_left_end - $this->graph_left_start) / $identifier_count;
$px_from_top_start = $this->graph_top_end - 5;
$px_from_top_end = $this->graph_top_end + 5;
$longest_string = $this->find_longest_string($this->graph_identifiers);
$font_size = $this->graph_font_size_identifiers;
while($this->return_ttf_string_width($longest_string, $this->graph_font, $font_size) > ($identifier_width - 3))
$font_size -= 0.5;
for($i = 0; $i < $identifier_count; $i++)
{
$px_bound_left = $this->graph_left_start + ($identifier_width * $i);
$px_bound_right = $this->graph_left_start + ($identifier_width * ($i + 1));
if($i == 0)
imageline($this->graph_image, $px_bound_left, $px_from_top_start, $px_bound_left, $px_from_top_end, $this->graph_color_notches);
imageline($this->graph_image, $px_bound_right, $px_from_top_start, $px_bound_right, $px_from_top_end, $this->graph_color_notches);
$this->gd_write_text_center($this->graph_identifiers[$i], $font_size, $this->graph_color_headers, $px_bound_left + ceil($identifier_width / 2), $px_from_top_end - 5, FALSE, TRUE);
}
}
protected function render_graph_bars()
{
$identifier_count = count($this->graph_identifiers) + 1;
$graph_width = $this->graph_left_end - $this->graph_left_start;
$identifier_width = ($this->graph_left_end - $this->graph_left_start) / $identifier_count;
$bar_count = count($this->graph_data);
$bar_width = floor($identifier_width / $bar_count);
$font_size = $this->graph_font_size_bars;
while($this->return_ttf_string_width($this->trim_double($this->graph_maximum_value, 3), $this->graph_font, $font_size) > ($bar_width - 6))
$font_size -= 0.5;
for($i_o = 0; $i_o < $bar_count; $i_o++)
{
$paint_color = $this->next_paint_color();
for($i = 0; $i < count($this->graph_data[$i_o]); $i++)
{
$value = $this->graph_data[$i_o][$i];
$graph_size = round(($value / $this->graph_maximum_value) * ($this->graph_top_end - $this->graph_top_start));
$value_plot_top = $this->graph_top_end + 1 - $graph_size;
$identifier_count = count($this->graph_data[$i_o]);
$graph_width = $this->graph_left_end - $this->graph_left_start;
$identifier_width = ($this->graph_left_end - $this->graph_left_start) / $identifier_count;
$bar_width = floor($identifier_width / $bar_count);
$px_bound_left = $this->graph_left_start + ($identifier_width * $i) + ($bar_width * $i_o) + 2;
$px_bound_right = $this->graph_left_start + ($identifier_width * ($i + 1)) - ($bar_width * ($bar_count - $i_o - 1));
if($i_o == 0)
$size_diff_left = 5;
else
$size_diff_left = 0;
if(($i_o + 1) == $bar_count)
$size_diff_right = 5;
else
$size_diff_right = 0;
if($value_plot_top < 1)
$value_plot_top = 1;
imagerectangle($this->graph_image, $px_bound_left + $size_diff_left, $value_plot_top - 1, $px_bound_right - $size_diff_right, $this->graph_top_end - 1, $this->graph_color_body_light);
imagefilledrectangle($this->graph_image, $px_bound_left + $size_diff_left + 1, $value_plot_top, $px_bound_right - $size_diff_right - 1, $this->graph_top_end - 1, $paint_color);
$value = $this->trim_double($value, 2);
if($graph_size > 20)
$this->gd_write_text_center($this->graph_data[$i_o][$i], $font_size, $this->graph_color_body_text, $px_bound_left + (($px_bound_right - $px_bound_left) / 2), $value_plot_top + 3);
}
}
}
protected function render_graph_result()
{
$this->render_graph_bars();
}
}
?>
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