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Removed obsoleted libchart from helpers

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Signed-off-by: Janos SUTO <sj@acts.hu>
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Janos SUTO 2022-09-04 13:13:24 +02:00
parent a24661cd32
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31 changed files with 0 additions and 3987 deletions
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15
webui/system/helper/libchart/COPYING
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Open Source License
---------------------------------------------------------------------------
Libchart is distributed under the terms of the GNU GPL v3.
This includes everything in the source code distribution
except where otherwise stated.
A copy of the GNU GPL v3 can be found in doc/GNU_GPL_V3.
Third Party Content
---------------------------------------------------------------------------
The following third party software is distributed with Libchart and
is provided under other licenses and/or has source available from
other locations.
Files in the fonts directory are distributed under Dejavu font license.
A copy of the Dejavu font license can be found in doc/DEJAVU_LICENSE.

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webui/system/helper/libchart/ChangeLog
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Libchart ChangeLog
==================
(C) 2005-2011 Jean-Marc Trémeaux
VERSION 1.3: (2011-07-27)
==========
FEATURES:
* Customized palette on Horizontal and Vertical Bar charts.
* Add an option to turn off text caption on individual data points.
* Add an option to disable sorting (preserve data points order).
BUGFIXES:
* Issue #2: DejaVu Fonts don't include license
VERSION 1.2.2: (2010-10-12)
==========
FEATURES:
* Ability to change colors.
BUGFIXES:
* Fix #1 : Pie chart filled with solid color when percentage < 1.
VERSION 1.2.1: (2008-04-10)
==========
BUGFIXES:
* Ability to set the upper/lower bounds (regression).
* HorizontalBarChart: a small box is shown when x = 0 (regression).
* Multiple series charts: when we go over the maximum series count, loop over color.
* Multiple series bar chart: brown color is shown twice.
* Pie chart : if some relative percentage is null, the whole diagram is filled in by one color.
* Ability to use negative values in bar chart.
VERSION 1.2: (2007-08-13)
==========
LICENSE:
* Change of license to GPL v3
FEATURES:
* Multiple line charts
* Multiple vertical and horizontal bar charts
* Customizable layout (plot)
REFACTORING:
* Support for PHP4 is deprecated, as PHP 4 has reached its end of life.
* Use of PHP5 OO constructs
* Use of <?php tags for better server compatibility
* Better separation of data and presentation objects, introduction of dataset objects
VERSION 1.1: (2006-04-02)
==========
CHANGES:
* Added Line Charts
* Bar Chart: default lower bound set to value 0 (seems more intuitive).
Use $chart->setLowerBound(null) if you want to revert to the old behaviour.
BUGFIXES:
* Removed undefined IMG_ARC_FILL constant
* Added missing default parameter in HorizontalChart::render()
* Fixed decimal values in Bar Charts
* Typo in default logo
* Crashed when no point was defined
* Crashed when all values were set to 0
Version 1.0: (2005-09-30)
==========
INITIAL RELEASE

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webui/system/helper/libchart/README
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Libchart - Simple PHP chart drawing library
=============================================
Libchart is a free chart creation PHP library, that is easy to use.
--------------------------------------------------------------------------------
Features
==========
* Bar charts (horizontal or vertical).
* Pie charts.
* Line charts.
* Compatibility with PHP 5.
--------------------------------------------------------------------------------
Dependencies
==============
* PHP 5, compiled with:
* GD 2+
* FreeType 2+
--------------------------------------------------------------------------------
Installation
==============
In order to use Libchart, unpack the archive in you project directory and
include libchart.php. Please have a look at the demo files for more information.
You need to chmod 777 the "generated" directory in order to generate the demos.
There is also a tutorial available at the project homepage.
--------------------------------------------------------------------------------
Contact info
==============
WWW: http://naku.dohcrew.com/libchart/
MAIL: jm.tremeaux at gmail dot com

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webui/system/helper/libchart/classes/libchart.php
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<?php
/* Libchart - PHP chart library
* Copyright (C) 2005-2011 Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*
* 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/>.
*
*/
require_once 'model/ChartConfig.php';
require_once 'model/Point.php';
require_once 'model/DataSet.php';
require_once 'model/XYDataSet.php';
require_once 'model/XYSeriesDataSet.php';
require_once 'view/primitive/Padding.php';
require_once 'view/primitive/Rectangle.php';
require_once 'view/primitive/Primitive.php';
require_once 'view/text/Text.php';
require_once 'view/color/Color.php';
require_once 'view/color/ColorSet.php';
require_once 'view/color/Palette.php';
require_once 'view/axis/Bound.php';
require_once 'view/axis/Axis.php';
require_once 'view/plot/Plot.php';
require_once 'view/caption/Caption.php';
require_once 'view/chart/Chart.php';
require_once 'view/chart/BarChart.php';
require_once 'view/chart/VerticalBarChart.php';
require_once 'view/chart/HorizontalBarChart.php';
require_once 'view/chart/LineChart.php';
require_once 'view/chart/PieChart.php';
?>

112
webui/system/helper/libchart/classes/model/ChartConfig.php
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<?php
/* Libchart - PHP chart library
* Copyright (C) 2005-2011 Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*
* 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/>.
*
*/
/**
* Configuration attributes of the chart.
*
* @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*/
class ChartConfig {
/**
* Use several colors for a single data set chart (as if it was a multiple data set).
*
* @var Boolean
*/
private $useMultipleColor;
/**
* Show caption on individual data points.
*
* @var Boolean
*/
private $showPointCaption;
/**
* Sort data points (only pie charts).
*
* @var Boolean
*/
private $sortDataPoint;
/**
* Creates a new ChartConfig with default options.
*/
public function ChartConfig() {
$this->useMultipleColor = false;
$this->showPointCaption = true;
$this->sortDataPoint = true;
}
/**
* If true the chart will use several colors for a single data set chart
* (as if it was a multiple data set).
*
* @param $useMultipleColor Use several colors : boolean
*/
public function setUseMultipleColor($useMultipleColor) {
$this->useMultipleColor = $useMultipleColor;
}
/**
* If true the chart will use several colors for a single data set chart
* (as if it was a multiple data set).
*
* @return $useMultipleColor Use several colors : boolean
*/
public function getUseMultipleColor() {
return $this->useMultipleColor;
}
/**
* Set the option to show caption on individual data points.
*
* @param $showPointCaption Show caption on individual data points : boolean
*/
public function setShowPointCaption($showPointCaption) {
$this->showPointCaption = $showPointCaption;
}
/**
* Get the option to show caption on individual data points.
*
* @return Show caption on individual data points : boolean
*/
public function getShowPointCaption() {
return $this->showPointCaption;
}
/**
* Set the option to sort data points (only pie charts).
*
* @param $sortDataPoint Sort data points : boolean
*/
public function setSortDataPoint($sortDataPoint) {
$this->sortDataPoint = $sortDataPoint;
}
/**
* Get the option to sort data points (only pie charts).
*
* @return Sort data points : boolean
*/
public function getSortDataPoint() {
return $this->sortDataPoint;
}
}
?>

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webui/system/helper/libchart/classes/model/DataSet.php
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<?php
/* Libchart - PHP chart library
* Copyright (C) 2005-2011 Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*
* 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/>.
*
*/
/**
* Superclass of all data sets.
*
* @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
* Created on 10 may 2007
*/
abstract class DataSet {
}
?>

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webui/system/helper/libchart/classes/model/Point.php
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<?php
/* Libchart - PHP chart library
* Copyright (C) 2005-2011 Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*
* 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/>.
*
*/
/**
* Point of coordinates (X,Y).
* The value of X isn't really of interest, but X is used as a label to display on the horizontal axis.
*
* @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*/
class Point {
private $x;
private $y;
/**
* Creates a new sampling point of coordinates (x, y)
*
* @param integer x coordinate (label)
* @param integer y coordinate (value)
*/
public function Point($x, $y) {
$this->x = $x;
$this->y = $y;
}
/**
* Gets the x coordinate (label).
*
* @return integer x coordinate (label)
*/
public function getX() {
return $this->x;
}
/**
* Gets the y coordinate (value).
*
* @return integer y coordinate (value)
*/
public function getY() {
return $this->y;
}
}
?>

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webui/system/helper/libchart/classes/model/XYDataSet.php
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<?php
/* Libchart - PHP chart library
* Copyright (C) 2005-2011 Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*
* 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/>.
*
*/
/**
* Set of data in the form of (x, y) items.
*
* @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
* Created on 10 may 2007
*/
class XYDataSet extends DataSet {
private $pointList;
/**
* Constructor of XYDataSet.
*
*/
public function XYDataSet() {
$this->pointList = array();
}
/**
* Add a new point to the dataset.
*
* @param Point Point to add to the dataset
*/
public function addPoint($point) {
array_push($this->pointList, $point);
}
/**
* Getter of pointList.
*
* @return List of points.
*/
public function getPointList() {
return $this->pointList;
}
}
?>

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webui/system/helper/libchart/classes/model/XYSeriesDataSet.php
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<?php
/* Libchart - PHP chart library
* Copyright (C) 2005-2011 Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*
* 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/>.
*
*/
/**
* This dataset comprises several series of points and is used to plot multiple lines charts.
* Each serie is a XYDataSet.
*
* @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
* Created on 20 july 2007
*/
class XYSeriesDataSet extends DataSet {
/**
* List of titles
*/
private $titleList;
/**
* List of XYDataSet.
*/
private $serieList;
/**
* Constructor of XYSeriesDataSet.
*
*/
public function XYSeriesDataSet() {
$this->titleList = array();
$this->serieList = array();
}
/**
* Add a new serie to the dataset.
*
* @param string Title (label) of the serie.
* @param XYDataSet Serie of points to add
*/
public function addSerie($title, $serie) {
array_push($this->titleList, $title);
array_push($this->serieList, $serie);
}
/**
* Getter of titleList.
*
* @return List of titles.
*/
public function getTitleList() {
return $this->titleList;
}
/**
* Getter of serieList.
*
* @return List of series.
*/
public function getSerieList() {
return $this->serieList;
}
}
?>

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webui/system/helper/libchart/classes/view/axis/Axis.php
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<?php
/* Libchart - PHP chart library
* Copyright (C) 2005-2011 Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*
* 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/>.
*
*/
/**
* Automatic axis boundaries and ticks calibration
*
* @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*/
class Axis {
private $min;
private $max;
private $guide;
private $delta;
private $magnitude;
private $displayMin;
private $displayMax;
private $tics;
/**
* Creates a new axis formatter.
*
* @param integer minimum value on the axis
* @param integer maximum value on the axis
*/
public function Axis($min, $max) {
$this->min = $min;
$this->max = $max;
$this->guide = 10;
}
/**
* Computes value between two ticks.
*/
public function quantizeTics() {
// Approximate number of decades, in [1..10[
$norm = $this->delta / $this->magnitude;
// Approximate number of tics per decade
$posns = $this->guide / $norm;
if ($posns > 20) {
$tics = 0.05; // e.g. 0, .05, .10, ...
} else if ($posns > 10) {
$tics = 0.2; // e.g. 0, .1, .2, ...
} else if ($posns > 5) {
$tics = 0.4; // e.g. 0, 0.2, 0.4, ...
} else if ($posns > 3) {
$tics = 0.5; // e.g. 0, 0.5, 1, ...
} else if ($posns > 2) {
$tics = 1; // e.g. 0, 1, 2, ...
} else if ($posns > 0.25) {
$tics = 2; // e.g. 0, 2, 4, 6
} else {
$tics = ceil($norm);
}
$this->tics = $tics * $this->magnitude;
}
/**
* Computes automatic boundaries on the axis
*/
public function computeBoundaries() {
// Range
$this->delta = abs($this->max - $this->min);
// Check for null distribution
if ($this->delta == 0)
$this->delta = 1;
// Order of magnitude of range
$this->magnitude = pow(10, floor(log10($this->delta)));
$this->quantizeTics();
$this->displayMin = floor($this->min / $this->tics) * $this->tics;
$this->displayMax = ceil($this->max / $this->tics) * $this->tics;
$this->displayDelta = $this->displayMax - $this->displayMin;
// Check for null distribution
if ($this->displayDelta == 0) {
$this->displayDelta = 1;
}
}
/**
* Get the lower boundary on the axis3
*
* @return integer lower boundary on the axis
*/
public function getLowerBoundary() {
return $this->displayMin;
}
/**
* Get the upper boundary on the axis3
*
* @return integer upper boundary on the axis
*/
public function getUpperBoundary() {
return $this->displayMax;
}
/**
* Get the value between two ticks3
*
* @return integer value between two ticks
*/
public function getTics() {
return $this->tics;
}
}
?>

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webui/system/helper/libchart/classes/view/axis/Bound.php
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<?php
/* Libchart - PHP chart library
* Copyright (C) 2005-2011 Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*
* 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/>.
*
*/
/**
* Object representing the bounds of a dataset (its minimal and maximal values) on its vertical axis.
* The bounds are automatically calculated from a XYDataSet or XYSeriesDataSet.
* Default (calculated) bounds can be overriden using the setLowerBound() and setUpperBound() methods.
*
* @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
* Created on 25 july 2007
*/
class Bound {
/**
* Manually set lower bound, overrides the value calculated by computeBound().
*/
private $lowerBound = null;
/**
* Manually set upper bound, overrides the value calculated by computeBound().
*/
private $upperBound = null;
/**
* Computed min bound.
*/
private $yMinValue = null;
/**
* Computed max bound.
*/
private $yMaxValue = null;
/**
* Compute the boundaries on the axis.
*
* @param dataSet The data set
*/
public function computeBound($dataSet) {
// Check if the data set is empty
$dataSetEmpty = true;
$serieList = null;
if ($dataSet instanceof XYDataSet) {
$pointList = $dataSet->getPointList();
$dataSetEmpty = count($pointList) == 0;
if (!$dataSetEmpty) {
// Process it as a serie
$serieList = array();
array_push($serieList, $dataSet);
}
} else if ($dataSet instanceof XYSeriesDataSet) {
$serieList = $dataSet->getSerieList();
if (count($serieList) > 0) {
$serie = current($serieList);
$dataSetEmpty = count($serie) == 0;
}
} else {
die("Error: unknown dataset type");
}
// If the dataset is empty, default some bounds
$yMin = 0;
$yMax = 1;
if (!$dataSetEmpty) {
// Compute lower and upper bound on the value axis
unset($yMin);
unset($yMax);
foreach ($serieList as $serie) {
foreach ($serie->getPointList() as $point) {
$y = $point->getY();
if (!isset($yMin)) {
$yMin = $y;
$yMax = $y;
} else {
if ($y < $yMin) {
$yMin = $y;
}
if ($y > $yMax) {
$yMax = $y;
}
}
}
}
}
// If user specified bounds and they are actually greater than computer bounds, override computed bounds
if (isset($this->lowerBound) && $this->lowerBound < $yMin) {
$this->yMinValue = $this->lowerBound;
} else {
$this->yMinValue = $yMin;
}
if (isset($this->upperBound) && $this->upperBound > $yMax) {
$this->yMaxValue = $this->upperBound;
} else {
$this->yMaxValue = $yMax;
}
}
/**
* Getter of yMinValue.
*
* @return min bound
*/
public function getYMinValue() {
return $this->yMinValue;
}
/**
* Getter of yMaxValue.
*
* @return max bound
*/
public function getYMaxValue() {
return $this->yMaxValue;
}
/**
* Set manually the lower boundary value (overrides the automatic formatting).
* Typical usage is to set the bars starting from zero.
*
* @param double lower boundary value
*/
public function setLowerBound($lowerBound) {
$this->lowerBound = $lowerBound;
}
/**
* Set manually the upper boundary value (overrides the automatic formatting).
*
* @param double upper boundary value
*/
public function setUpperBound($upperBound) {
$this->upperBound = $upperBound;
}
}
?>

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webui/system/helper/libchart/classes/view/caption/Caption.php
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<?php
/* Libchart - PHP chart library
* Copyright (C) 2005-2011 Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*
* 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/>.
*
*/
/**
* Caption.
*
* @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
* Created on 30 july 2007
*/
class Caption {
protected $labelBoxWidth;
protected $labelBoxHeight;
// Plot
protected $plot;
// Label list
protected $labelList;
// Color set
protected $colorSet;
/**
* Constructor of Caption
*/
public function Caption() {
$this->labelBoxWidth = 15;
$this->labelBoxHeight = 15;
}
/**
* Render the caption.
*/
public function render() {
// Get graphical obects
$img = $this->plot->getImg();
$palette = $this->plot->getPalette();
$text = $this->plot->getText();
$primitive = $this->plot->getPrimitive();
// Get the caption area
$captionArea = $this->plot->getCaptionArea();
// Get the pie color set
$colorSet = $this->colorSet;
$colorSet->reset();
$i = 0;
foreach ($this->labelList as $label) {
// Get the next color
$color = $colorSet->currentColor();
$colorSet->next();
$boxX1 = $captionArea->x1;
$boxX2 = $boxX1 + $this->labelBoxWidth;
$boxY1 = $captionArea->y1 + 5 + $i * ($this->labelBoxHeight + 5);
$boxY2 = $boxY1 + $this->labelBoxHeight;
$primitive->outlinedBox($boxX1, $boxY1, $boxX2, $boxY2, $palette->axisColor[0], $palette->axisColor[1]);
imagefilledrectangle($img, $boxX1 + 2, $boxY1 + 2, $boxX2 - 2, $boxY2 - 2, $color->getColor($img));
$text->printText($img, $boxX2 + 5, $boxY1 + $this->labelBoxHeight / 2, $this->plot->getTextColor(), $label, $text->fontCondensed, $text->VERTICAL_CENTER_ALIGN);
$i++;
}
}
/**
* Sets the plot.
*
* @param Plot The plot
*/
public function setPlot($plot) {
$this->plot = $plot;
}
/**
* Sets the label list.
*
* @param Array label list
*/
public function setLabelList($labelList) {
$this->labelList = $labelList;
}
/**
* Sets the color set.
*
* @param Array Color set
*/
public function setColorSet($colorSet) {
$this->colorSet = $colorSet;
}
}
?>

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webui/system/helper/libchart/classes/view/chart/BarChart.php
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<?php
/* Libchart - PHP chart library
* Copyright (C) 2005-2011 Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*
* 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/>.
*
*/
/**
* Base abstract class for rendering both horizontal and vertical bar charts.
*
* @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*/
abstract class BarChart extends Chart {
protected $bound;
protected $axis;
protected $hasSeveralSerie;
/**
* Creates a new bar chart.
*
* @param integer width of the image
* @param integer height of the image
*/
protected function BarChart($width, $height) {
parent::Chart($width, $height);
// Initialize the bounds
$this->bound = new Bound();
$this->bound->setLowerBound(0);
}
/**
* Compute the axis.
*/
protected function computeAxis() {
$this->axis = new Axis($this->bound->getYMinValue(), $this->bound->getYMaxValue());
$this->axis->computeBoundaries();
}
/**
* Create the image.
*/
protected function createImage() {
parent::createImage();
// Get graphical obects
$img = $this->plot->getImg();
$palette = $this->plot->getPalette();
$text = $this->plot->getText();
$primitive = $this->plot->getPrimitive();
// Get the graph area
$graphArea = $this->plot->getGraphArea();
// Aqua-like background
for ($i = $graphArea->y1; $i < $graphArea->y2; $i++) {
$color = $palette->backgroundColor[($i + 3) % 4];
$primitive->line($graphArea->x1, $i, $graphArea->x2, $i, $color);
}
// Axis
imagerectangle($img, $graphArea->x1 - 1, $graphArea->y1, $graphArea->x1, $graphArea->y2, $palette->axisColor[0]->getColor($img));
imagerectangle($img, $graphArea->x1 - 1, $graphArea->y2, $graphArea->x2, $graphArea->y2 + 1, $palette->axisColor[0]->getColor($img));
}
/**
* Returns true if the data set has some data.
* @param minNumberOfPoint Minimum number of points (1 for bars, 2 for lines).
*
* @return true if data set empty
*/
protected function isEmptyDataSet($minNumberOfPoint) {
if ($this->dataSet instanceof XYDataSet) {
$pointList = $this->dataSet->getPointList();
$pointCount = count($pointList);
return $pointCount < $minNumberOfPoint;
} else if ($this->dataSet instanceof XYSeriesDataSet) {
$serieList = $this->dataSet->getSerieList();
reset($serieList);
if (count($serieList) > 0) {
$serie = current($serieList);
$pointList = $serie->getPointList();
$pointCount = count($pointList);
return $pointCount < $minNumberOfPoint;
}
} else {
die("Error: unknown dataset type");
}
}
/**
* Checks the data model before rendering the graph.
*/
protected function checkDataModel() {
// Check if a dataset was defined
if (!$this->dataSet) {
die("Error: No dataset defined.");
}
// Bar charts accept both XYDataSet and XYSeriesDataSet
if ($this->dataSet instanceof XYDataSet) {
// The dataset contains only one serie
$this->hasSeveralSerie = false;
} else if ($this->dataSet instanceof XYSeriesDataSet) {
// Check if each series has the same number of points
unset($lastPointCount);
$serieList = $this->dataSet->getSerieList();
for ($i = 0; $i < count($serieList); $i++) {
$serie = $serieList[$i];
$pointCount = count($serie->getPointList());
if (isset($lastPointCount) && $pointCount != $lastPointCount) {
die("Error: serie <" . $i . "> doesn't have the same number of points as last serie (last one: <" . $lastPointCount. ">, this one: <" . $pointCount. ">).");
}
$lastPointCount = $pointCount;
}
// The dataset contains several series
$this->hasSeveralSerie = true;
} else {
die("Error: Bar chart accept only XYDataSet and XYSeriesDataSet");
}
}
/**
* Return the data as a series list (for consistency).
*
* @return List of series
*/
protected function getDataAsSerieList() {
// Get the data as a series list
$serieList = null;
if ($this->dataSet instanceof XYSeriesDataSet) {
$serieList = $this->dataSet->getSerieList();
} else if ($this->dataSet instanceof XYDataSet) {
$serieList = array();
array_push($serieList, $this->dataSet);
}
return $serieList;
}
/**
* Return the first serie of the list, or the dataSet itself if there is no serie.
*
* @return XYDataSet
*/
protected function getFirstSerieOfList() {
$pointList = null;
if ($this->dataSet instanceof XYSeriesDataSet) {
// For a series dataset, print the legend from the first serie
$serieList = $this->dataSet->getSerieList();
reset($serieList);
$serie = current($serieList);
$pointList = $serie->getPointList();
} else if ($this->dataSet instanceof XYDataSet) {
$pointList = $this->dataSet->getPointList();
}
return $pointList;
}
/**
* Retourns the bound.
*
* @return bound Bound
*/
public function getBound() {
return $this->bound;
}
}
?>

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<?php
/* Libchart - PHP chart library
* Copyright (C) 2005-2011 Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*
* 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/>.
*
*/
/*! \mainpage Libchart
*
* This is the reference API, automatically compiled by <a href="http://www.stack.nl/~dimitri/doxygen/">Doxygen</a>.
* You can find here information that is not covered by the <a href="../samplecode/">tutorial</a>.
*
*/
/**
* Base chart class.
*
* @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*/
abstract class Chart {
/**
* The chart configuration.
*/
protected $config;
/**
* The data set.
*/
protected $dataSet;
/**
* Plot (holds graphical attributes).
*/
protected $plot;
/**
* Abstract constructor of Chart.
*
* @param integer width of the image
* @param integer height of the image
*/
protected function Chart($width, $height) {
// Initialize the configuration
$this->config = new ChartConfig();
// Creates the plot
$this->plot = new Plot($width, $height);
$this->plot->setTitle("Untitled chart");
}
/**
* Checks the data model before rendering the graph.
*/
protected function checkDataModel() {
// Check if a dataset was defined
if (!$this->dataSet) {
die("Error: No dataset defined.");
}
// Maybe no points are defined, but that's ok. This will yield and empty graph with default boundaries.
}
/**
* Create the image.
*/
protected function createImage() {
$this->plot->createImage();
}
/**
* Sets the data set.
*
* @param dataSet The data set
*/
public function setDataSet($dataSet) {
$this->dataSet = $dataSet;
}
/**
* Return the chart configuration.
*
* @return configuration : ChartConfig
*/
public function getConfig() {
return $this->config;
}
/**
* Return the plot.
*
* @return plot
*/
public function getPlot() {
return $this->plot;
}
/**
* Sets the title.
*
* @param string New title
*/
public function setTitle($title) {
$this->plot->setTitle($title);
}
}
?>

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<?php
/* Libchart - PHP chart library
* Copyright (C) 2005-2011 Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*
* 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/>.
*
*/
/**
* Horizontal bar chart
*
* @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*/
class HorizontalBarChart extends BarChart {
/**
* Ratio of empty space beside the bars.
*/
private $emptyToFullRatio;
/**
* Creates a new horizontal bar chart.
*
* @param integer width of the image
* @param integer height of the image
*/
public function HorizontalBarChart($width = 600, $height = 250) {
parent::BarChart($width, $height);
$this->emptyToFullRatio = 1 / 5;
$this->plot->setGraphPadding(new Padding(5, 30, 30, 50));
}
/**
* Computes the layout.
*/
protected function computeLayout() {
if ($this->hasSeveralSerie) {
$this->plot->setHasCaption(true);
}
$this->plot->computeLayout();
}
/**
* Print the axis.
*/
protected function printAxis() {
$minValue = $this->axis->getLowerBoundary();
$maxValue = $this->axis->getUpperBoundary();
$stepValue = $this->axis->getTics();
// Get graphical obects
$img = $this->plot->getImg();
$palette = $this->plot->getPalette();
$text = $this->plot->getText();
// Get the graph area
$graphArea = $this->plot->getGraphArea();
// Horizontal axis
for ($value = $minValue; $value <= $maxValue; $value += $stepValue) {
$x = $graphArea->x1 + ($value - $minValue) * ($graphArea->x2 - $graphArea->x1) / ($this->axis->displayDelta);
imagerectangle($img, $x - 1, $graphArea->y2 + 2, $x, $graphArea->y2 + 3, $palette->axisColor[0]->getColor($img));
imagerectangle($img, $x - 1, $graphArea->y2, $x, $graphArea->y2 + 1, $palette->axisColor[1]->getColor($img));
$text->printText($img, $x, $graphArea->y2 + 5, $this->plot->getTextColor(), $value, $text->fontCondensed, $text->HORIZONTAL_CENTER_ALIGN);
}
// Get first serie of a list
$pointList = $this->getFirstSerieOfList();
// Vertical Axis
$pointCount = count($pointList);
reset($pointList);
$rowHeight = ($graphArea->y2 - $graphArea->y1) / $pointCount;
reset($pointList);
for ($i = 0; $i <= $pointCount; $i++) {
$y = $graphArea->y2 - $i * $rowHeight;
imagerectangle($img, $graphArea->x1 - 3, $y, $graphArea->x1 - 2, $y + 1, $palette->axisColor[0]->getColor($img));
imagerectangle($img, $graphArea->x1 - 1, $y, $graphArea->x1, $y + 1, $palette->axisColor[1]->getColor($img));
if ($i < $pointCount) {
$point = current($pointList);
next($pointList);
$label = $point->getX();
$text->printText($img, $graphArea->x1 - 5, $y - $rowHeight / 2, $this->plot->getTextColor(), $label, $text->fontCondensed, $text->HORIZONTAL_RIGHT_ALIGN | $text->VERTICAL_CENTER_ALIGN);
}
}
}
/**
* Print the bars.
*/
protected function printBar() {
// Get the data as a list of series for consistency
$serieList = $this->getDataAsSerieList();
// Get graphical obects
$img = $this->plot->getImg();
$palette = $this->plot->getPalette();
$text = $this->plot->getText();
// Get the graph area
$graphArea = $this->plot->getGraphArea();
$minValue = $this->axis->getLowerBoundary();
$maxValue = $this->axis->getUpperBoundary();
$stepValue = $this->axis->getTics();
// Start from the first color for the first serie
$barColorSet = $palette->barColorSet;
$barColorSet->reset();
$serieCount = count($serieList);
for ($j = 0; $j < $serieCount; $j++) {
$serie = $serieList[$j];
$pointList = $serie->getPointList();
$pointCount = count($pointList);
reset($pointList);
// Select the next color for the next serie
if (!$this->config->getUseMultipleColor()) {
$color = $barColorSet->currentColor();
$shadowColor = $barColorSet->currentShadowColor();
$barColorSet->next();
}
$rowHeight = ($graphArea->y2 - $graphArea->y1) / $pointCount;
for ($i = 0; $i < $pointCount; $i++) {
$y = $graphArea->y2 - $i * $rowHeight;
$point = current($pointList);
next($pointList);
$value = $point->getY();
$xmax = $graphArea->x1 + ($value - $minValue) * ($graphArea->x2 - $graphArea->x1) / ($this->axis->displayDelta);
// Bar dimensions
$yWithMargin = $y - $rowHeight * $this->emptyToFullRatio;
$rowWidthWithMargin = $rowHeight * (1 - $this->emptyToFullRatio * 2);
$barWidth = $rowWidthWithMargin / $serieCount;
$barOffset = $barWidth * $j;
$y1 = $yWithMargin - $barWidth - $barOffset;
$y2 = $yWithMargin - $barOffset - 1;
// Select the next color for the next item in the serie
if ($this->config->getUseMultipleColor()) {
$color = $barColorSet->currentColor();
$shadowColor = $barColorSet->currentShadowColor();
$barColorSet->next();
}
// Draw caption text on bar
if ($this->config->getShowPointCaption()) {
$text->printText($img, $xmax + 5, $y2 - $barWidth / 2, $this->plot->getTextColor(), $value, $text->fontCondensed, $text->VERTICAL_CENTER_ALIGN);
}
// Draw the horizontal bar
imagefilledrectangle($img, $graphArea->x1 + 1, $y1, $xmax, $y2, $shadowColor->getColor($img));
// Prevents drawing a small box when x = 0
if ($graphArea->x1 != $xmax) {
imagefilledrectangle($img, $graphArea->x1 + 2, $y1 + 1, $xmax - 4, $y2, $color->getColor($img));
}
}
}
}
/**
* Renders the caption.
*/
protected function printCaption() {
// Get the list of labels
$labelList = $this->dataSet->getTitleList();
// Create the caption
$caption = new Caption();
$caption->setPlot($this->plot);
$caption->setLabelList($labelList);
$palette = $this->plot->getPalette();
$barColorSet = $palette->barColorSet;
$caption->setColorSet($barColorSet);
// Render the caption
$caption->render();
}
/**
* Render the chart image.
*
* @param string name of the file to render the image to (optional)
*/
public function render($fileName = null) {
// Check the data model
$this->checkDataModel();
$this->bound->computeBound($this->dataSet);
$this->computeAxis();
$this->computeLayout();
$this->createImage();
$this->plot->printLogo();
$this->plot->printTitle();
if (!$this->isEmptyDataSet(1)) {
$this->printAxis();
$this->printBar();
if ($this->hasSeveralSerie) {
$this->printCaption();
}
}
$this->plot->render($fileName);
}
}
?>

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<?php
/* Libchart - PHP chart library
* Copyright (C) 2005-2011 Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*
* 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/>.
*
*/
/**
* Line chart.
*
* @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*/
class LineChart extends BarChart {
/**
* Creates a new line chart.
* Line charts allow for XYDataSet and XYSeriesDataSet in order to plot several lines.
*
* @param integer width of the image
* @param integer height of the image
*/
public function LineChart($width = 600, $height = 250) {
parent::BarChart($width, $height);
$this->plot->setGraphPadding(new Padding(5, 30, 50, 50));
}
/**
* Computes the layout.
*/
protected function computeLayout() {
if ($this->hasSeveralSerie) {
$this->plot->setHasCaption(true);
}
$this->plot->computeLayout();
}
/**
* Print the axis.
*/
protected function printAxis() {
$minValue = $this->axis->getLowerBoundary();
$maxValue = $this->axis->getUpperBoundary();
$stepValue = $this->axis->getTics();
// Get graphical obects
$img = $this->plot->getImg();
$palette = $this->plot->getPalette();
$text = $this->plot->getText();
// Get the graph area
$graphArea = $this->plot->getGraphArea();
// Vertical axis
for ($value = $minValue; $value <= $maxValue; $value += $stepValue) {
$y = $graphArea->y2 - ($value - $minValue) * ($graphArea->y2 - $graphArea->y1) / ($this->axis->displayDelta);
imagerectangle($img, $graphArea->x1 - 3, $y, $graphArea->x1 - 2, $y + 1, $palette->axisColor[0]->getColor($img));
imagerectangle($img, $graphArea->x1 - 1, $y, $graphArea->x1, $y + 1, $palette->axisColor[1]->getColor($img));
$text->printText($img, $graphArea->x1 - 5, $y, $this->plot->getTextColor(), $value, $text->fontCondensed, $text->HORIZONTAL_RIGHT_ALIGN | $text->VERTICAL_CENTER_ALIGN);
}
// Get first serie of a list
$pointList = $this->getFirstSerieOfList();
// Horizontal Axis
$pointCount = count($pointList);
reset($pointList);
$columnWidth = ($graphArea->x2 - $graphArea->x1) / ($pointCount - 1);
for ($i = 0; $i < $pointCount; $i++) {
$x = $graphArea->x1 + $i * $columnWidth;
imagerectangle($img, $x - 1, $graphArea->y2 + 2, $x, $graphArea->y2 + 3, $palette->axisColor[0]->getColor($img));
imagerectangle($img, $x - 1, $graphArea->y2, $x, $graphArea->y2 + 1, $palette->axisColor[1]->getColor($img));
$point = current($pointList);
next($pointList);
$label = $point->getX();
$text->printDiagonal($img, $x - 5, $graphArea->y2 + 10, $this->plot->getTextColor(), $label);
}
}
/**
* Print the lines.
*/
protected function printLine() {
$minValue = $this->axis->getLowerBoundary();
$maxValue = $this->axis->getUpperBoundary();
// Get the data as a list of series for consistency
$serieList = $this->getDataAsSerieList();
// Get graphical obects
$img = $this->plot->getImg();
$palette = $this->plot->getPalette();
$text = $this->plot->getText();
$primitive = $this->plot->getPrimitive();
// Get the graph area
$graphArea = $this->plot->getGraphArea();
$lineColorSet = $palette->lineColorSet;
$lineColorSet->reset();
for ($j = 0; $j < count($serieList); $j++) {
$serie = $serieList[$j];
$pointList = $serie->getPointList();
$pointCount = count($pointList);
reset($pointList);
$columnWidth = ($graphArea->x2 - $graphArea->x1) / ($pointCount - 1);
$lineColor = $lineColorSet->currentColor();
$lineColorShadow = $lineColorSet->currentShadowColor();
$lineColorSet->next();
$x1 = null;
$y1 = null;
for ($i = 0; $i < $pointCount; $i++) {
$x2 = $graphArea->x1 + $i * $columnWidth;
$point = current($pointList);
next($pointList);
$value = $point->getY();
$y2 = $graphArea->y2 - ($value - $minValue) * ($graphArea->y2 - $graphArea->y1) / ($this->axis->displayDelta);
// Draw line
if ($x1) {
$primitive->line($x1, $y1, $x2, $y2, $lineColor, 4);
$primitive->line($x1, $y1 - 1, $x2, $y2 - 1, $lineColorShadow, 2);
}
$x1 = $x2;
$y1 = $y2;
}
}
}
/**
* Renders the caption.
*/
protected function printCaption() {
// Get the list of labels
$labelList = $this->dataSet->getTitleList();
// Create the caption
$caption = new Caption();
$caption->setPlot($this->plot);
$caption->setLabelList($labelList);
$palette = $this->plot->getPalette();
$lineColorSet = $palette->lineColorSet;
$caption->setColorSet($lineColorSet);
// Render the caption
$caption->render();
}
/**
* Render the chart image.
*
* @param string name of the file to render the image to (optional)
*/
public function render($fileName = null) {
// Check the data model
$this->checkDataModel();
$this->bound->computeBound($this->dataSet);
$this->computeAxis();
$this->computeLayout();
$this->createImage();
$this->plot->printLogo();
$this->plot->printTitle();
if (!$this->isEmptyDataSet(2)) {
$this->printAxis();
$this->printLine();
if ($this->hasSeveralSerie) {
$this->printCaption();
}
}
$this->plot->render($fileName);
}
}
?>

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<?php
/* Libchart - PHP chart library
* Copyright (C) 2005-2011 Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*
* 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/>.
*
*/
/**
* Pie chart.
*
* @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*/
class PieChart extends Chart {
protected $pieCenterX;
protected $pieCenterY;
/**
* Constructor of a pie chart.
*
* @param integer width of the image
* @param integer height of the image
*/
public function PieChart($width = 600, $height = 250) {
parent::Chart($width, $height);
$this->plot->setGraphPadding(new Padding(15, 10, 30, 30));
}
/**
* Computes the layout.
*/
protected function computeLayout() {
$this->plot->setHasCaption(true);
$this->plot->computeLayout();
// Get the graph area
$graphArea = $this->plot->getGraphArea();
// Compute the coordinates of the pie
$this->pieCenterX = $graphArea->x1 + ($graphArea->x2 - $graphArea->x1) / 2;
$this->pieCenterY = $graphArea->y1 + ($graphArea->y2 - $graphArea->y1) / 2;
$this->pieWidth = round(($graphArea->x2 - $graphArea->x1) * 4 / 5);
$this->pieHeight = round(($graphArea->y2 - $graphArea->y1) * 3.7 / 5);
$this->pieDepth = round($this->pieWidth * 0.05);
}
/**
* Compare two sampling point values, order from biggest to lowest value.
*
* @param double first value
* @param double second value
* @return integer result of the comparison
*/
protected function sortPie($v1, $v2) {
return $v1[0] == $v2[0] ? 0 :
$v1[0] > $v2[0] ? -1 :
1;
}
/**
* Compute pie values in percentage and sort them.
*/
protected function computePercent() {
$this->total = 0;
$this->percent = array();
$pointList = $this->dataSet->getPointList();
foreach ($pointList as $point) {
$this->total += $point->getY();
}
foreach ($pointList as $point) {
$percent = $this->total == 0 ? 0 : 100 * $point->getY() / $this->total;
array_push($this->percent, array($percent, $point));
}
// Sort data points
if ($this->config->getSortDataPoint()) {
usort($this->percent, array("PieChart", "sortPie"));
}
}
/**
* Creates the pie chart image.
*/
protected function createImage() {
parent::createImage();
// Get graphical obects
$img = $this->plot->getImg();
$palette = $this->plot->getPalette();
$primitive = $this->plot->getPrimitive();
// Get the graph area
$graphArea = $this->plot->getGraphArea();
// Legend box
$primitive->outlinedBox($graphArea->x1, $graphArea->y1, $graphArea->x2, $graphArea->y2, $palette->axisColor[0], $palette->axisColor[1]);
// Aqua-like background
for ($i = $graphArea->y1 + 2; $i < $graphArea->y2 - 1; $i++) {
$color = $palette->backgroundColor[($i + 3) % 4];
$primitive->line($graphArea->x1 + 2, $i, $graphArea->x2 - 2, $i, $color);
}
}
/**
* Renders the caption.
*/
protected function printCaption() {
// Create a list of labels
$labelList = array();
foreach($this->percent as $percent) {
list($percent, $point) = $percent;
$label = $point->getX();
array_push($labelList, $label);
}
// Create the caption
$caption = new Caption();
$caption->setPlot($this->plot);
$caption->setLabelList($labelList);
$palette = $this->plot->getPalette();
$pieColorSet = $palette->pieColorSet;
$caption->setColorSet($pieColorSet);
// Render the caption
$caption->render();
}
/**
* Draw a 2D disc.
*
* @param integer Center coordinate (y)
* @param array Colors for each portion
* @param bitfield Drawing mode
*/
protected function drawDisc($cy, $colorArray, $mode) {
// Get graphical obects
$img = $this->plot->getImg();
$i = 0;
$oldAngle = 0;
$percentTotal = 0;
foreach ($this->percent as $a) {
list ($percent, $point) = $a;
// If value is null, don't draw this arc
if ($percent <= 0) {
continue;
}
$color = $colorArray[$i % count($colorArray)];
$percentTotal += $percent;
$newAngle = $percentTotal * 360 / 100;
// imagefilledarc doesn't like null values (#1)
if ($newAngle - $oldAngle >= 1) {
imagefilledarc($img, $this->pieCenterX, $cy, $this->pieWidth, $this->pieHeight, $oldAngle, $newAngle, $color->getColor($img), $mode);
}
$oldAngle = $newAngle;
$i++;
}
}
/**
* Print the percentage text.
*/
protected function drawPercent() {
// Get graphical obects
$img = $this->plot->getImg();
$palette = $this->plot->getPalette();
$text = $this->plot->getText();
$primitive = $this->plot->getPrimitive();
$angle1 = 0;
$percentTotal = 0;
foreach ($this->percent as $a) {
list ($percent, $point) = $a;
// If value is null, the arc isn't drawn, no need to display percent
if ($percent <= 0) {
continue;
}
$percentTotal += $percent;
$angle2 = $percentTotal * 2 * M_PI / 100;
$angle = $angle1 + ($angle2 - $angle1) / 2;
$label = number_format($percent) . "%";
$x = cos($angle) * ($this->pieWidth + 35) / 2 + $this->pieCenterX;
$y = sin($angle) * ($this->pieHeight + 35) / 2 + $this->pieCenterY;
$text->printText($img, $x, $y, $this->plot->getTextColor(), $label, $text->fontCondensed, $text->HORIZONTAL_CENTER_ALIGN | $text->VERTICAL_CENTER_ALIGN);
$angle1 = $angle2;
}
}
/**
* Print the pie chart.
*/
protected function printPie() {
// Get graphical obects
$img = $this->plot->getImg();
$palette = $this->plot->getPalette();
$text = $this->plot->getText();
$primitive = $this->plot->getPrimitive();
// Get the pie color set
$pieColorSet = $palette->pieColorSet;
$pieColorSet->reset();
// Silhouette
for ($cy = $this->pieCenterY + $this->pieDepth / 2; $cy >= $this->pieCenterY - $this->pieDepth / 2; $cy--) {
$this->drawDisc($cy, $palette->pieColorSet->shadowColorList, IMG_ARC_EDGED);
}
// Top
$this->drawDisc($this->pieCenterY - $this->pieDepth / 2, $palette->pieColorSet->colorList, IMG_ARC_PIE);
// Top Outline
if ($this->config->getShowPointCaption()) {
$this->drawPercent();
}
}
/**
* Render the chart image.
*
* @param string name of the file to render the image to (optional)
*/
public function render($fileName = null) {
$this->computePercent();
$this->computeLayout();
$this->createImage();
$this->plot->printLogo();
$this->plot->printTitle();
$this->printPie();
$this->printCaption();
$this->plot->render($fileName);
}
}
?>

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<?php
/* Libchart - PHP chart library
* Copyright (C) 2005-2011 Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*
* 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/>.
*
*/
/**
* Chart composed of vertical bars.
*
* @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*/
class VerticalBarChart extends BarChart {
/**
* Ratio of empty space beside the bars.
*/
private $emptyToFullRatio;
/**
* Creates a new vertical bar chart
*
* @param integer width of the image
* @param integer height of the image
*/
public function VerticalBarChart($width = 600, $height = 250) {
parent::BarChart($width, $height);
$this->emptyToFullRatio = 1 / 5;
$this->plot->setGraphPadding(new Padding(5, 30, 50, 50));
}
/**
* Computes the layout.
*/
protected function computeLayout() {
if ($this->hasSeveralSerie) {
$this->plot->setHasCaption(true);
}
$this->plot->computeLayout();
}
/**
* Print the horizontal and veritcal axis.
*/
protected function printAxis() {
$minValue = $this->axis->getLowerBoundary();
$maxValue = $this->axis->getUpperBoundary();
$stepValue = $this->axis->getTics();
// Get graphical obects
$img = $this->plot->getImg();
$palette = $this->plot->getPalette();
$text = $this->plot->getText();
// Get the graph area
$graphArea = $this->plot->getGraphArea();
// Vertical axis
for ($value = $minValue; $value <= $maxValue; $value += $stepValue) {
$y = $graphArea->y2 - ($value - $minValue) * ($graphArea->y2 - $graphArea->y1) / ($this->axis->displayDelta);
imagerectangle($img, $graphArea->x1 - 3, $y, $graphArea->x1 - 2, $y + 1, $palette->axisColor[0]->getColor($img));
imagerectangle($img, $graphArea->x1 - 1, $y, $graphArea->x1, $y + 1, $palette->axisColor[1]->getColor($img));
$text->printText($img, $graphArea->x1 - 5, $y, $this->plot->getTextColor(), $value, $text->fontCondensed, $text->HORIZONTAL_RIGHT_ALIGN | $text->VERTICAL_CENTER_ALIGN);
}
// Get first serie of a list
$pointList = $this->getFirstSerieOfList();
// Horizontal Axis
$pointCount = count($pointList);
reset($pointList);
$columnWidth = ($graphArea->x2 - $graphArea->x1) / $pointCount;
for ($i = 0; $i <= $pointCount; $i++) {
$x = $graphArea->x1 + $i * $columnWidth;
imagerectangle($img, $x - 1, $graphArea->y2 + 2, $x, $graphArea->y2 + 3, $palette->axisColor[0]->getColor($img));
imagerectangle($img, $x - 1, $graphArea->y2, $x, $graphArea->y2 + 1, $palette->axisColor[1]->getColor($img));
if ($i < $pointCount) {
$point = current($pointList);
next($pointList);
$label = $point->getX();
$text->printDiagonal($img, $x + $columnWidth * 1 / 3, $graphArea->y2 + 10, $this->plot->getTextColor(), $label);
}
}
}
/**
* Print the bars.
*/
protected function printBar() {
// Get the data as a list of series for consistency
$serieList = $this->getDataAsSerieList();
// Get graphical obects
$img = $this->plot->getImg();
$palette = $this->plot->getPalette();
$text = $this->plot->getText();
// Get the graph area
$graphArea = $this->plot->getGraphArea();
// Start from the first color for the first serie
$barColorSet = $palette->barColorSet;
$barColorSet->reset();
$minValue = $this->axis->getLowerBoundary();
$maxValue = $this->axis->getUpperBoundary();
$stepValue = $this->axis->getTics();
$serieCount = count($serieList);
for ($j = 0; $j < $serieCount; $j++) {
$serie = $serieList[$j];
$pointList = $serie->getPointList();
$pointCount = count($pointList);
reset($pointList);
// Select the next color for the next serie
if (!$this->config->getUseMultipleColor()) {
$color = $barColorSet->currentColor();
$shadowColor = $barColorSet->currentShadowColor();
$barColorSet->next();
}
$columnWidth = ($graphArea->x2 - $graphArea->x1) / $pointCount;
for ($i = 0; $i < $pointCount; $i++) {
$x = $graphArea->x1 + $i * $columnWidth;
$point = current($pointList);
next($pointList);
$value = $point->getY();
$ymin = $graphArea->y2 - ($value - $minValue) * ($graphArea->y2 - $graphArea->y1) / ($this->axis->displayDelta);
// Bar dimensions
$xWithMargin = $x + $columnWidth * $this->emptyToFullRatio;
$columnWidthWithMargin = $columnWidth * (1 - $this->emptyToFullRatio * 2);
$barWidth = $columnWidthWithMargin / $serieCount;
$barOffset = $barWidth * $j;
$x1 = $xWithMargin + $barOffset;
$x2 = $xWithMargin + $barWidth + $barOffset - 1;
// Select the next color for the next item in the serie
if ($this->config->getUseMultipleColor()) {
$color = $barColorSet->currentColor();
$shadowColor = $barColorSet->currentShadowColor();
$barColorSet->next();
}
// Draw caption text on bar
if ($this->config->getShowPointCaption()) {
$text->printText($img, $x1 + $barWidth / 2 , $ymin - 5, $this->plot->getTextColor(), $value, $text->fontCondensed, $text->HORIZONTAL_CENTER_ALIGN | $text->VERTICAL_BOTTOM_ALIGN);
}
// Draw the vertical bar
imagefilledrectangle($img, $x1, $ymin, $x2, $graphArea->y2 - 1, $shadowColor->getColor($img));
// Prevents drawing a small box when y = 0
if ($ymin != $graphArea->y2) {
imagefilledrectangle($img, $x1 + 1, $ymin + 1, $x2 - 4, $graphArea->y2 - 1, $color->getColor($img));
}
}
}
}
/**
* Renders the caption.
*/
protected function printCaption() {
// Get the list of labels
$labelList = $this->dataSet->getTitleList();
// Create the caption
$caption = new Caption();
$caption->setPlot($this->plot);
$caption->setLabelList($labelList);
$palette = $this->plot->getPalette();
$barColorSet = $palette->barColorSet;
$caption->setColorSet($barColorSet);
// Render the caption
$caption->render();
}
/**
* Render the chart image.
*
* @param string name of the file to render the image to (optional)
*/
public function render($fileName = null) {
// Check the data model
$this->checkDataModel();
$this->bound->computeBound($this->dataSet);
$this->computeAxis();
$this->computeLayout();
$this->createImage();
$this->plot->printLogo();
$this->plot->printTitle();
if (!$this->isEmptyDataSet(1)) {
$this->printAxis();
$this->printBar();
if ($this->hasSeveralSerie) {
$this->printCaption();
}
}
$this->plot->render($fileName);
}
}
?>

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<?php
/* Libchart - PHP chart library
* Copyright (C) 2005-2011 Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*
* 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/>.
*
*/
/**
* Color.
*
* @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*/
class Color {
private $red;
private $green;
private $blue;
private $alpha;
private $gdColor;
/**
* Creates a new color
*
* @param integer red [0..255]
* @param integer green [0..255]
* @param integer blue [0..255]
* @param integer alpha [0..255]
*/
public function Color($red, $green, $blue, $alpha = 0) {
$this->red = (int) $red;
$this->green = (int) $green;
$this->blue = (int) $blue;
$this->alpha = (int) round($alpha * 127.0 / 255);
$this->gdColor = null;
}
/**
* Get GD color.
*
* @param $img GD image resource
*/
public function getColor($img) {
// Checks if color has already been allocated
if (!$this->gdColor) {
if ($this->alpha == 0 || !function_exists('imagecolorallocatealpha')) {
$this->gdColor = imagecolorallocate($img, $this->red, $this->green, $this->blue);
} else {
$this->gdColor = imagecolorallocatealpha($img, $this->red, $this->green, $this->blue, $this->alpha);
}
}
// Returns GD color
return $this->gdColor;
}
/**
* Clip a color component in the interval [0..255]
*
* @param integer Component
* @return Clipped component
*/
public function clip($component) {
if ($component < 0) {
$component = 0;
} else if ($component > 255) {
$component = 255;
}
return $component;
}
/**
* Return a new color, which is a shadow of this one.
*
* @param double Multiplication factor
* @return Shadow color
*/
public function getShadowColor($shadowFactor) {
$red = $this->clip($this->red * $shadowFactor);
$green = $this->clip($this->green * $shadowFactor);
$blue = $this->clip($this->blue * $shadowFactor);
$shadowColor = new Color($red, $green, $blue);
return $shadowColor;
}
}
?>

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webui/system/helper/libchart/classes/view/color/ColorSet.php
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<?php
/* Libchart - PHP chart library
* Copyright (C) 2005-2011 Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*
* 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/>.
*
*/
/**
* A set of colors, used for drawing series of data.
*
* @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
* Created on 26 july 2007
*/
class ColorSet {
public $colorList;
public $shadowColorList;
/**
* ColorSet constructor.
*
* @param $shadowFactor Shadow factor
* @param $colorArray Colors as an array
*/
public function ColorSet($colorList, $shadowFactor) {
$this->colorList = $colorList;
$this->shadowColorList = array();
// Generate the shadow color set
foreach ($colorList as $color) {
$shadowColor = $color->getShadowColor($shadowFactor);
array_push($this->shadowColorList, $shadowColor);
}
}
/**
* Reset the iterator over the collections of colors.
*/
public function reset() {
reset($this->colorList);
reset($this->shadowColorList);
}
/**
* Iterate over the colors and shadow colors. When we go after the last one, loop over.
*
*/
public function next() {
$value = next($this->colorList);
next($this->shadowColorList);
// When we go after the last value, loop over.
if ($value == FALSE) {
$this->reset();
}
}
/**
* Returns the current color.
*
* @return Current color
*/
public function currentColor() {
return current($this->colorList);
}
/**
* Returns the current shadow color.
*
* @return Current shadow color
*/
public function currentShadowColor() {
return current($this->shadowColorList);
}
}
?>

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webui/system/helper/libchart/classes/view/color/Palette.php
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<?php
/* Libchart - PHP chart library
* Copyright (C) 2005-2011 Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*
* 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/>.
*
*/
/**
* Color palette shared by all chart types.
*
* @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
* Created on 25 july 2007
*/
class Palette {
// Plot attributes
public $red;
public $axisColor;
public $backgroundColor;
// Specific chart attributes
public $barColorSet;
public $lineColorSet;
public $pieColorSet;
/**
* Palette constructor.
*/
public function Palette() {
$this->red = new Color(255, 0, 0);
// Set the colors for the horizontal and vertical axis
$this->setAxisColor(array(
new Color(201, 201, 201),
new Color(158, 158, 158)
));
// Set the colors for the background
$this->setBackgroundColor(array(
new Color(242, 242, 242),
new Color(231, 231, 231),
new Color(239, 239, 239),
new Color(253, 253, 253)
));
// Set the colors for the bars
$this->setBarColor(array(
new Color(42, 71, 181),
new Color(243, 198, 118),
new Color(128, 63, 35),
new Color(195, 45, 28),
new Color(224, 198, 165),
new Color(239, 238, 218),
new Color(40, 72, 59),
new Color(71, 112, 132),
new Color(167, 192, 199),
new Color(218, 233, 202)
));
// Set the colors for the lines
$this->setLineColor(array(
new Color(172, 172, 210),
new Color(2, 78, 0),
new Color(148, 170, 36),
new Color(233, 191, 49),
new Color(240, 127, 41),
new Color(243, 63, 34),
new Color(190, 71, 47),
new Color(135, 81, 60),
new Color(128, 78, 162),
new Color(121, 75, 255),
new Color(142, 165, 250),
new Color(162, 254, 239),
new Color(137, 240, 166),
new Color(104, 221, 71),
new Color(98, 174, 35),
new Color(93, 129, 1)
));
// Set the colors for the pie
$this->setPieColor(array(
new Color(2, 78, 0),
new Color(148, 170, 36),
new Color(233, 191, 49),
new Color(240, 127, 41),
new Color(243, 63, 34),
new Color(190, 71, 47),
new Color(135, 81, 60),
new Color(128, 78, 162),
new Color(121, 75, 255),
new Color(142, 165, 250),
new Color(162, 254, 239),
new Color(137, 240, 166),
new Color(104, 221, 71),
new Color(98, 174, 35),
new Color(93, 129, 1)
));
}
/**
* Set the colors for the axis.
*
* @param colors Array of Color
*/
public function setAxisColor($colors) {
$this->axisColor = $colors;
}
/**
* Set the colors for the background.
*
* @param colors Array of Color
*/
public function setBackgroundColor($colors) {
$this->backgroundColor = $colors;
}
/**
* Set the colors for the bar charts.
*
* @param colors Array of Color
*/
public function setBarColor($colors) {
$this->barColorSet = new ColorSet($colors, 0.75);
}
/**
* Set the colors for the line charts.
*
* @param colors Array of Color
*/
public function setLineColor($colors) {
$this->lineColorSet = new ColorSet($colors, 0.75);
}
/**
* Set the colors for the pie charts.
*
* @param colors Array of Color
*/
public function setPieColor($colors) {
$this->pieColorSet = new ColorSet($colors, 0.7);
}
}
?>

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webui/system/helper/libchart/classes/view/plot/Plot.php
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<?php
/* Libchart - PHP chart library
* Copyright (C) 2005-2011 Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*
* 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/>.
*
*/
/**
* The plot holds graphical attributes, and is responsible for computing the layout of the graph.
* The layout is quite simple right now, with 4 areas laid out like that:
* (of course this is subject to change in the future).
*
* output area------------------------------------------------|
* | (outer padding) |
* | image area--------------------------------------------| |
* | | (title padding) | |
* | | title area----------------------------------------| | |
* | | |-------------------------------------------------| | |
* | | | |
* | | (graph padding) (caption padding) | |
* | | graph area----------------| caption area---------| | |
* | | | | | | | |
* | | | | | | | |
* | | | | | | | |
* | | | | | | | |
* | | | | | | | |
* | | |-------------------------| |--------------------| | |
* | | | |
* | |-----------------------------------------------------| |
* | |
* |----------------------------------------------------------|
*
* All area dimensions are known in advance , and the optional logo is drawn in absolute coordinates.
*
* @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
* Created on 27 july 2007
*/
class Plot {
// Style properties
protected $title;
/**
* Location of the logo. Can be overriden to your personalized logo.
*/
protected $logoFileName;
/**
* Outer area, whose dimension is the same as the PNG returned.
*/
protected $outputArea;
/**
* Outer padding surrounding the whole image, everything outside is blank.
*/
protected $outerPadding;
/**
* Coordinates of the area inside the outer padding.
*/
protected $imageArea;
/**
* Fixed title height in pixels.
*/
protected $titleHeight;
/**
* Padding of the title area.
*/
protected $titlePadding;
/**
* Coordinates of the title area.
*/
protected $titleArea;
/**
* True if the plot has a caption.
*/
protected $hasCaption;
/**
* Ratio of graph/caption in width.
*/
protected $graphCaptionRatio;
/**
* Padding of the graph area.
*/
protected $graphPadding;
/**
* Coordinates of the graph area.
*/
protected $graphArea;
/**
* Padding of the caption area.
*/
protected $captionPadding;
/**
* Coordinates of the caption area.
*/
protected $captionArea;
/**
* Text writer.
*/
protected $text;
/**
* Color palette.
*/
protected $palette;
/**
* GD image
*/
protected $img;
/**
* Drawing primitives
*/
protected $primitive;
protected $backGroundColor;
protected $textColor;
/**
* Constructor of Plot.
*
* @param integer width of the image
* @param integer height of the image
*/
public function Plot($width, $height) {
$this->width = $width;
$this->height = $height;
$this->text = new Text();
$this->palette = new Palette();
// Default layout
$this->outputArea = new Rectangle(0, 0, $width - 1, $height - 1);
$this->outerPadding = new Padding(5);
$this->titleHeight = 26;
$this->titlePadding = new Padding(5);
$this->hasCaption = false;
$this->graphCaptionRatio = 0.50;
$this->graphPadding = new Padding(50);
$this->captionPadding = new Padding(15);
}
/**
* Compute the area inside the outer padding (outside is white).
*/
private function computeImageArea() {
$this->imageArea = $this->outputArea->getPaddedRectangle($this->outerPadding);
}
/**
* Compute the title area.
*/
private function computeTitleArea() {
$titleUnpaddedBottom = $this->imageArea->y1 + $this->titleHeight + $this->titlePadding->top + $this->titlePadding->bottom;
$titleArea = new Rectangle(
$this->imageArea->x1,
$this->imageArea->y1,
$this->imageArea->x2,
$titleUnpaddedBottom - 1
);
$this->titleArea = $titleArea->getPaddedRectangle($this->titlePadding);
}
/**
* Compute the graph area.
*/
private function computeGraphArea() {
$titleUnpaddedBottom = $this->imageArea->y1 + $this->titleHeight + $this->titlePadding->top + $this->titlePadding->bottom;
$graphArea = null;
if ($this->hasCaption) {
$graphUnpaddedRight = $this->imageArea->x1 + ($this->imageArea->x2 - $this->imageArea->x1) * $this->graphCaptionRatio
+ $this->graphPadding->left + $this->graphPadding->right;
$graphArea = new Rectangle(
$this->imageArea->x1,
$titleUnpaddedBottom,
$graphUnpaddedRight - 1,
$this->imageArea->y2
);
} else {
$graphArea = new Rectangle(
$this->imageArea->x1,
$titleUnpaddedBottom,
$this->imageArea->x2,
$this->imageArea->y2
);
}
$this->graphArea = $graphArea->getPaddedRectangle($this->graphPadding);
}
/**
* Compute the caption area.
*/
private function computeCaptionArea() {
$graphUnpaddedRight = $this->imageArea->x1 + ($this->imageArea->x2 - $this->imageArea->x1) * $this->graphCaptionRatio
+ $this->graphPadding->left + $this->graphPadding->right;
$titleUnpaddedBottom = $this->imageArea->y1 + $this->titleHeight + $this->titlePadding->top + $this->titlePadding->bottom;
$captionArea = new Rectangle(
$graphUnpaddedRight,
$titleUnpaddedBottom,
$this->imageArea->x2,
$this->imageArea->y2
);
$this->captionArea = $captionArea->getPaddedRectangle($this->captionPadding);
}
/**
* Compute the layout of all areas of the graph.
*/
public function computeLayout() {
$this->computeImageArea();
$this->computeTitleArea();
$this->computeGraphArea();
if ($this->hasCaption) {
$this->computeCaptionArea();
}
}
/**
* Creates and initialize the image.
*/
public function createImage() {
$this->img = imagecreatetruecolor($this->width, $this->height);
$this->primitive = new Primitive($this->img);
$this->backGroundColor = new Color(255, 255, 255);
$this->textColor = new Color(0, 0, 0);
// White background
imagefilledrectangle($this->img, 0, 0, $this->width - 1, $this->height - 1, $this->backGroundColor->getColor($this->img));
//imagerectangle($this->img, $this->imageArea->x1, $this->imageArea->y1, $this->imageArea->x2, $this->imageArea->y2, $this->palette->red->getColor($this->img));
}
/**
* Print the title to the image.
*/
public function printTitle() {
$yCenter = $this->titleArea->y1 + ($this->titleArea->y2 - $this->titleArea->y1) / 2;
$this->text->printCentered($this->img, $yCenter, $this->textColor, $this->title, $this->text->fontCondensedBold);
}
/**
* Print the logo image to the image.
*/
public function printLogo() {
@$logoImage = imageCreateFromPNG($this->logoFileName);
if ($logoImage) {
imagecopymerge($this->img, $logoImage, 2 * $this->outerPadding->left, $this->outerPadding->top, 0, 0, imagesx($logoImage), imagesy($logoImage), 100);
}
}
/**
* Renders to a file or to standard output.
*
* @param fileName File name (optional)
*/
public function render($fileName) {
if (isset($fileName)) {
imagepng($this->img, $fileName);
} else {
imagepng($this->img);
}
}
/**
* Sets the title.
*
* @param string New title
*/
public function setTitle($title) {
$this->title = $title;
}
/**
* Sets the logo image file name.
*
* @param string New logo image file name
*/
public function setLogoFileName($logoFileName) {
$this->logoFileName = $logoFileName;
}
/**
* Return the GD image.
*
* @return GD Image
*/
public function getImg() {
return $this->img;
}
/**
* Return the palette.
*
* @return palette
*/
public function getPalette() {
return $this->palette;
}
/**
* Return the text.
*
* @return text
*/
public function getText() {
return $this->text;
}
/**
* Return the primitive.
*
* @return primitive
*/
public function getPrimitive() {
return $this->primitive;
}
/**
* Return the outer padding.
*
* @param integer Outer padding value in pixels
*/
public function getOuterPadding() {
return $outerPadding;
}
/**
* Set the outer padding.
*
* @param integer Outer padding value in pixels
*/
public function setOuterPadding($outerPadding) {
$this->outerPadding = $outerPadding;
}
/**
* Return the title height.
*
* @param integer title height
*/
public function setTitleHeight($titleHeight) {
$this->titleHeight = $titleHeight;
}
/**
* Return the title padding.
*
* @param integer title padding
*/
public function setTitlePadding($titlePadding) {
$this->titlePadding = $titlePadding;
}
/**
* Return the graph padding.
*
* @param integer graph padding
*/
public function setGraphPadding($graphPadding) {
$this->graphPadding = $graphPadding;
}
/**
* Set if the graph has a caption.
*
* @param boolean graph has a caption
*/
public function setHasCaption($hasCaption) {
$this->hasCaption = $hasCaption;
}
/**
* Set the caption padding.
*
* @param integer caption padding
*/
public function setCaptionPadding($captionPadding) {
$this->captionPadding = $captionPadding;
}
/**
* Set the graph/caption ratio.
*
* @param integer caption padding
*/
public function setGraphCaptionRatio($graphCaptionRatio) {
$this->graphCaptionRatio = $graphCaptionRatio;
}
/**
* Return the graph area.
*
* @return graph area
*/
public function getGraphArea() {
return $this->graphArea;
}
/**
* Return the caption area.
*
* @return caption area
*/
public function getCaptionArea() {
return $this->captionArea;
}
/**
* Return the text color.
*
* @return text color
*/
public function getTextColor() {
return $this->textColor;
}
}
?>

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<?php
/* Libchart - PHP chart library
* Copyright (C) 2005-2011 Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*
* 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/>.
*
*/
/**
* Primitive geometric object representing a padding.
*
* @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
* @Created on 27 july 2007
*/
class Padding {
/**
* Top padding.
*/
public $top;
/**
* Right padding.
*/
public $right;
/**
* Bottom padding.
*/
public $bottom;
/**
* Left padding.
*/
public $left;
/**
* Creates a new padding.
*
* @param integer Top padding
* @param integer Right padding
* @param integer Bottom padding
* @param integer Left padding
*/
public function Padding($top, $right = null, $bottom = null, $left = null) {
$this->top = $top;
if ($right == null) {
$this->right = $top;
$this->bottom = $top;
$this->left = $top;
} else {
$this->right = $right;
$this->bottom = $bottom;
$this->left = $left;
}
}
}
?>

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webui/system/helper/libchart/classes/view/primitive/Primitive.php
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<?php
/* Libchart - PHP chart library
* Copyright (C) 2005-2011 Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*
* 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/>.
*
*/
/**
* Graphic primitives, extends GD with chart related primitives.
*
* @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*/
class Primitive {
private $img;
/**
* Creates a new primitive object
*
* @param resource GD image resource
*/
public function Primitive($img) {
$this->img = $img;
}
/**
* Draws a straight line.
*
* @param integer line start (X)
* @param integer line start (Y)
* @param integer line end (X)
* @param integer line end (Y)
* @param Color line color
*/
public function line($x1, $y1, $x2, $y2, $color, $width = 1) {
imagefilledpolygon($this->img, array($x1, $y1 - $width / 2, $x1, $y1 + $width / 2, $x2, $y2 + $width / 2, $x2, $y2 - $width / 2), 4, $color->getColor($this->img));
// imageline($this->img, $x1, $y1, $x2, $y2, $color->getColor($this->img));
}
/**
* Draw a filled gray box with thick borders and darker corners.
*
* @param integer top left coordinate (x)
* @param integer top left coordinate (y)
* @param integer bottom right coordinate (x)
* @param integer bottom right coordinate (y)
* @param Color edge color
* @param Color corner color
*/
public function outlinedBox($x1, $y1, $x2, $y2, $color0, $color1) {
imagefilledrectangle($this->img, $x1, $y1, $x2, $y2, $color0->getColor($this->img));
imagerectangle($this->img, $x1, $y1, $x1 + 1, $y1 + 1, $color1->getColor($this->img));
imagerectangle($this->img, $x2 - 1, $y1, $x2, $y1 + 1, $color1->getColor($this->img));
imagerectangle($this->img, $x1, $y2 - 1, $x1 + 1, $y2, $color1->getColor($this->img));
imagerectangle($this->img, $x2 - 1, $y2 - 1, $x2, $y2, $color1->getColor($this->img));
}
}
?>

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webui/system/helper/libchart/classes/view/primitive/Rectangle.php
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<?php
/* Libchart - PHP chart library
* Copyright (C) 2005-2011 Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*
* 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/>.
*
*/
/**
* A rectangle identified by the top-left and the bottom-right corners.
*
* @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
* @Created on 27 july 2007
*/
class Rectangle {
/**
* Top left X.
*/
public $x1;
/**
* Top left Y.
*/
public $y1;
/**
* Bottom right X.
*/
public $x2;
/**
* Bottom right Y.
*/
public $y2;
/**
* Constructor of Rectangle.
*
* @param x1 Left edge coordinate
* @param y1 Upper edge coordinate
* @param x2 Right edge coordinate
* @param y2 Bottom edge coordinate
*/
public function Rectangle($x1, $y1, $x2, $y2) {
$this->x1 = $x1;
$this->y1 = $y1;
$this->x2 = $x2;
$this->y2 = $y2;
}
/**
* Apply a padding and returns the resulting rectangle.
* The result is an enlarged rectangle.
*
* @return Padded rectangle
*/
public function getPaddedRectangle($padding) {
$rectangle = new Rectangle(
$this->x1 + $padding->left,
$this->y1 + $padding->top,
$this->x2 - $padding->right,
$this->y2 - $padding->bottom
);
//echo "(" . $this->x1 . "," . $this->y1 . ") (" . $this->x2 . "," . $this->y2 . ")<br>";
return $rectangle;
}
}
?>

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webui/system/helper/libchart/classes/view/text/Text.php
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<?php
/* Libchart - PHP chart library
* Copyright (C) 2005-2011 Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*
* 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/>.
*
*/
/**
* Text drawing helper
*
* @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
*/
class Text {
public $HORIZONTAL_LEFT_ALIGN = 1;
public $HORIZONTAL_CENTER_ALIGN = 2;
public $HORIZONTAL_RIGHT_ALIGN = 4;
public $VERTICAL_TOP_ALIGN = 8;
public $VERTICAL_CENTER_ALIGN = 16;
public $VERTICAL_BOTTOM_ALIGN = 32;
/**
* Creates a new text drawing helper.
*/
public function Text() {
$baseDir = dirname(__FILE__) . "/../../../";
// Free low-res fonts based on Bitstream Vera <http://dejavu.sourceforge.net/wiki/>
$this->fontCondensed = $baseDir . "fonts/DejaVuSansCondensed.ttf";
$this->fontCondensedBold = $baseDir . "fonts/DejaVuSansCondensed-Bold.ttf";
}
/**
* Print text.
*
* @param Image GD image
* @param integer text coordinate (x)
* @param integer text coordinate (y)
* @param Color text color
* @param string text value
* @param string font file name
* @param bitfield text alignment
*/
public function printText($img, $px, $py, $color, $text, $fontFileName, $align = 0) {
if (!($align & $this->HORIZONTAL_CENTER_ALIGN) && !($align & $this->HORIZONTAL_RIGHT_ALIGN)) {
$align |= $this->HORIZONTAL_LEFT_ALIGN;
}
if (!($align & $this->VERTICAL_CENTER_ALIGN) && !($align & $this->VERTICAL_BOTTOM_ALIGN)) {
$align |= $this->VERTICAL_TOP_ALIGN;
}
$fontSize = 8;
$lineSpacing = 1;
list ($llx, $lly, $lrx, $lry, $urx, $ury, $ulx, $uly) = imageftbbox($fontSize, 0, $fontFileName, $text, array("linespacing" => $lineSpacing));
$textWidth = $lrx - $llx;
$textHeight = $lry - $ury;
$angle = 0;
if ($align & $this->HORIZONTAL_CENTER_ALIGN) {
$px -= $textWidth / 2;
}
if ($align & $this->HORIZONTAL_RIGHT_ALIGN) {
$px -= $textWidth;
}
if ($align & $this->VERTICAL_CENTER_ALIGN) {
$py += $textHeight / 2;
}
if ($align & $this->VERTICAL_TOP_ALIGN) {
$py += $textHeight;
}
imagettftext($img, $fontSize, $angle, $px, $py, $color->getColor($img), $fontFileName, $text);
}
/**
* Print text centered horizontally on the image.
*
* @param Image GD image
* @param integer text coordinate (y)
* @param Color text color
* @param string text value
* @param string font file name
*/
public function printCentered($img, $py, $color, $text, $fontFileName) {
$this->printText($img, imagesx($img) / 2, $py, $color, $text, $fontFileName, $this->HORIZONTAL_CENTER_ALIGN | $this->VERTICAL_CENTER_ALIGN);
}
/**
* Print text in diagonal.
*
* @param Image GD image
* @param integer text coordinate (x)
* @param integer text coordinate (y)
* @param Color text color
* @param string text value
*/
public function printDiagonal($img, $px, $py, $color, $text) {
$fontSize = 8;
$fontFileName = $this->fontCondensed;
$lineSpacing = 1;
list ($lx, $ly, $rx, $ry) = imageftbbox($fontSize, 0, $fontFileName, $text, array("linespacing" => $lineSpacing));
$textWidth = $rx - $lx;
$angle = -45;
imagettftext($img, $fontSize, $angle, $px, $py, $color->getColor($img), $fontFileName, $text);
}
}
?>

51
webui/system/helper/libchart/doc/DEJAVU_LICENSE
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Fonts are (c) Bitstream (see below). DejaVu changes are in public domain.
Bitstream Vera Fonts Copyright
------------------------------
Copyright (c) 2003 by Bitstream, Inc. All Rights Reserved. Bitstream Vera is
a trademark of Bitstream, Inc.
Permission is hereby granted, free of charge, to any person obtaining a copy
of the fonts accompanying this license ("Fonts") and associated
documentation files (the "Font Software"), to reproduce and distribute the
Font Software, including without limitation the rights to use, copy, merge,
publish, distribute, and/or sell copies of the Font Software, and to permit
persons to whom the Font Software is furnished to do so, subject to the
following conditions:
The above copyright and trademark notices and this permission notice shall
be included in all copies of one or more of the Font Software typefaces.
The Font Software may be modified, altered, or added to, and in particular
the designs of glyphs or characters in the Fonts may be modified and
additional glyphs or characters may be added to the Fonts, only if the fonts
are renamed to names not containing either the words "Bitstream" or the word
"Vera".
This License becomes null and void to the extent applicable to Fonts or Font
Software that has been modified and is distributed under the "Bitstream
Vera" names.
The Font Software may be sold as part of a larger software package but no
copy of one or more of the Font Software typefaces may be sold by itself.
THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL BITSTREAM OR THE GNOME
FOUNDATION BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING
ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM OTHER DEALINGS IN THE
FONT SOFTWARE.
Except as contained in this notice, the names of Gnome, the Gnome
Foundation, and Bitstream Inc., shall not be used in advertising or
otherwise to promote the sale, use or other dealings in this Font Software
without prior written authorization from the Gnome Foundation or Bitstream
Inc., respectively. For further information, contact: fonts at gnome dot
org.
$Id: LICENSE,v 1.1 2004/08/14 15:50:46 src Exp $

674
webui/system/helper/libchart/doc/GNU_GPL_V3
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@ -1,674 +0,0 @@
GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The GNU General Public License is a free, copyleft license for
software and other kinds of works.
The licenses for most software and other practical works are designed
to take away your freedom to share and change the works. By contrast,
the GNU General Public License is intended to guarantee your freedom to
share and change all versions of a program--to make sure it remains free
software for all its users. We, the Free Software Foundation, use the
GNU General Public License for most of our software; it applies also to
any other work released this way by its authors. You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
them if you wish), that you receive source code or can get it if you
want it, that you can change the software or use pieces of it in new
free programs, and that you know you can do these things.
To protect your rights, we need to prevent others from denying you
these rights or asking you to surrender the rights. Therefore, you have
certain responsibilities if you distribute copies of the software, or if
you modify it: responsibilities to respect the freedom of others.
For example, if you distribute copies of such a program, whether
gratis or for a fee, you must pass on to the recipients the same
freedoms that you received. You must make sure that they, too, receive
or can get the source code. And you must show them these terms so they
know their rights.
Developers that use the GNU GPL protect your rights with two steps:
(1) assert copyright on the software, and (2) offer you this License
giving you legal permission to copy, distribute and/or modify it.
For the developers' and authors' protection, the GPL clearly explains
that there is no warranty for this free software. For both users' and
authors' sake, the GPL requires that modified versions be marked as
changed, so that their problems will not be attributed erroneously to
authors of previous versions.
Some devices are designed to deny users access to install or run
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Finally, every program is threatened constantly by software patents.
States should not allow patents to restrict development and use of
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patents cannot be used to render the program non-free.
The precise terms and conditions for copying, distribution and
modification follow.
TERMS AND CONDITIONS
0. Definitions.
"This License" refers to version 3 of the GNU General Public License.
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To "modify" a work means to copy from or adapt all or part of the work
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A "covered work" means either the unmodified Program or a work based
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To "propagate" a work means to do anything with it that, without
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run a copy of the Program. Ancillary propagation of a covered work
occurring solely as a consequence of using peer-to-peer transmission
to receive a copy likewise does not require acceptance. However,
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You may not impose any further restrictions on the exercise of the
rights granted or affirmed under this License. For example, you may
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work thus licensed is called the contributor's "contributor version".
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and the Corresponding Source of the work is not available for anyone
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available, or (2) arrange to deprive yourself of the benefit of the
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consistent with the requirements of this License, to extend the patent
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in a country, would infringe one or more identifiable patents in that
country that you have reason to believe are valid.
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arrangement, you convey, or propagate by procuring conveyance of, a
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the scope of its coverage, prohibits the exercise of, or is
conditioned on the non-exercise of one or more of the rights that are
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work if you are a party to an arrangement with a third party that is
in the business of distributing software, under which you make payment
to the third party based on the extent of your activity of conveying
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parties who would receive the covered work from you, a discriminatory
patent license (a) in connection with copies of the covered work
conveyed by you (or copies made from those copies), or (b) primarily
for and in connection with specific products or compilations that
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or that patent license was granted, prior to 28 March 2007.
Nothing in this License shall be construed as excluding or limiting
any implied license or other defenses to infringement that may
otherwise be available to you under applicable patent law.
12. No Surrender of Others' Freedom.
If conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot convey a
covered work so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you may
not convey it at all. For example, if you agree to terms that obligate you
to collect a royalty for further conveying from those to whom you convey
the Program, the only way you could satisfy both those terms and this
License would be to refrain entirely from conveying the Program.
13. Use with the GNU Affero General Public License.
Notwithstanding any other provision of this License, you have
permission to link or combine any covered work with a work licensed
under version 3 of the GNU Affero General Public License into a single
combined work, and to convey the resulting work. The terms of this
License will continue to apply to the part which is the covered work,
but the special requirements of the GNU Affero General Public License,
section 13, concerning interaction through a network will apply to the
combination as such.
14. Revised Versions of this License.
The Free Software Foundation may publish revised and/or new versions of
the GNU General Public License from time to time. Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the
Program specifies that a certain numbered version of the GNU General
Public License "or any later version" applies to it, you have the
option of following the terms and conditions either of that numbered
version or of any later version published by the Free Software
Foundation. If the Program does not specify a version number of the
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by the Free Software Foundation.
If the Program specifies that a proxy can decide which future
versions of the GNU General Public License can be used, that proxy's
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to choose that version for the Program.
Later license versions may give you additional or different
permissions. However, no additional obligations are imposed on any
author or copyright holder as a result of your choosing to follow a
later version.
15. Disclaimer of Warranty.
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
16. Limitation of Liability.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
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/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

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