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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_BarGraph extends pts_CustomGraph
{
var $identifier_width = -1;
var $minimum_identifier_font = 7;
public function __construct($title, $sub_title, $y_axis_title)
{
parent::__construct($title, $sub_title, $y_axis_title);
$this->graph_type = "BAR_GRAPH";
}
protected function render_graph_pre_init()
{
// Do some common work to this object
$identifier_count = count($this->graph_identifiers);
$this->identifier_width = floor(($this->graph_left_end - $this->graph_left_start) / $identifier_count);
$longest_string = $this->find_longest_string($this->graph_identifiers);
$width = $this->identifier_width - 8;
$this->graph_font_size_identifiers = $this->text_size_bounds($longest_string, $this->graph_font, $this->graph_font_size_identifiers, $this->minimum_identifier_font, $width);
if($this->graph_font_size_identifiers == $this->minimum_identifier_font)
{
$this->update_graph_dimensions($this->graph_attr_width, $this->graph_attr_height + $this->text_string_width($longest_string, $this->graph_font, 9));
}
}
protected function render_graph_identifiers()
{
$px_from_top_start = $this->graph_top_end - 5;
$px_from_top_end = $this->graph_top_end + 5;
for($i = 0; $i < count($this->graph_identifiers); $i++)
{
$px_bound_left = $this->graph_left_start + ($this->identifier_width * $i);
$px_bound_right = $px_bound_left + $this->identifier_width;
if($i == 0)
{
$this->draw_line($this->graph_image, $px_bound_left, $px_from_top_start, $px_bound_left, $px_from_top_end, $this->graph_color_notches);
}
if($i == (count($this->graph_identifiers) - 1) && $px_bound_right != $this->graph_left_end)
{
$px_bound_right = $this->graph_left_end;
}
$this->draw_line($this->graph_image, $px_bound_right, $px_from_top_start, $px_bound_right, $px_from_top_end, $this->graph_color_notches);
if($this->graph_font_size_identifiers == $this->minimum_identifier_font)
{
$this->write_text_left($this->graph_identifiers[$i], 9, $this->graph_color_headers, $px_bound_left + ceil($this->identifier_width / 2), $px_from_top_end, $px_bound_left + ceil($this->identifier_width / 2), $px_from_top_end, true);
}
else
{
$this->write_text_center($this->graph_identifiers[$i], $this->graph_font_size_identifiers, $this->graph_color_headers, $px_bound_left, $px_from_top_end - 5, $px_bound_right, $px_from_top_end - 5, false, true);
}
}
}
protected function render_graph_bars()
{
$bar_count = count($this->graph_data);
$bar_width = floor($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[$i_o]); $i++)
{
$value = $this->trim_double($this->graph_data[$i_o][$i], 2);
$graph_size = round(($value / $this->graph_maximum_value) * ($this->graph_top_end - $this->graph_top_start));
$value_plot_top = $this->graph_top_end + 1 - $graph_size;
$px_bound_left = $this->graph_left_start + ($this->identifier_width * $i) + ($bar_width * $i_o) + 8;
$px_bound_right = $px_bound_left + $bar_width;
if($value_plot_top < 1)
{
$value_plot_top = 1;
}
$this->draw_rectangle_border($this->graph_image, $px_bound_left, $value_plot_top - 1, $px_bound_right, $this->graph_top_end - 1, $this->graph_color_body_light);
$this->draw_rectangle($this->graph_image, $px_bound_left + 1, $value_plot_top, $px_bound_right - 1, $this->graph_top_end - 1, $paint_color);
if($graph_size > 20)
{
$this->write_text_center($this->graph_data[$i_o][$i], $this->graph_font_size_bars, $this->graph_color_body_text, $px_bound_left, $value_plot_top + 3, $px_bound_right, $value_plot_top + 3);
}
}
}
}
protected function render_graph_result()
{
$this->render_graph_bars();
}
}
?>
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