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friendica-addons/jappixmini/jappix/php/drawsvgchart.php

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<?php
// Extracted from CodingTeam for the Jappix project.
// This file is a part of CodingTeam. Take a look at <http://codingteam.org>.
// Copyright © 2007-2010 Erwan Briand <erwan@codingteam.net>
//
// This program is free software: you can redistribute it and/or modify it
// under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, version 3 only.
//
// 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 Affero General Public
// License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
/**
* @file
* This file contains the DrawSVGChart class.
*/
/**
* DrawSVGChart class
*/
class DrawSVGChart {
private $datas, $legend, $link, $xml_object, $svg,
$xml_elements, $evolution;
public $has_errors;
function createChart($datas=array(), $legend=array(), $link,
$evolution=FALSE, $type='others')
{
$this->has_errors = FALSE;
$max = 0;
// One or two data arrays
if (isset($datas[0]) && is_array($datas[0]))
{
$datas_number = count($datas[0]);
if ($datas_number >= 1)
$max = max($datas[0]);
else
$this->has_errors = TRUE;
}
else
{
$datas_number = count($datas);
if ($datas_number >= 1)
$max = max($datas);
else
$this->has_errors = TRUE;
}
// Set the width of the chart
if ($datas_number * 55 > 400)
$width = $datas_number * 55;
else
$width = 400;
$height = 250;
$this->datas = $datas;
$this->legend = $legend;
$this->link = $link;
$this->evolution = $evolution;
$this->type = $type;
$this->xml_elements = array();
// Scale
if ($max <= 20)
{
$scale[4] = 20;
$scale[3] = 15;
$scale[2] = 10;
$scale[1] = 5;
}
else
{
$scale[4] = ceil($max / 20) * 20;
$scale[3] = $scale[4] * 3/4;
$scale[2] = $scale[4] * 2/4;
$scale[1] = $scale[4] * 1/4;
}
if ($scale[4] == 0 || $max == 0)
$this->has_errors = TRUE;
if ($this->has_errors)
return TRUE;
$this->xml_object = new DOMDocument('1.0', 'utf-8');
// Process the static file host prefix
$static_prefix = '.';
if(hasStatic())
$static_prefix = HOST_STATIC.'/php';
// Add the stylesheet
$style = $this->xml_object->createProcessingInstruction("xml-stylesheet",
"type='text/css' href='".getFiles(genHash(getVersion()), '', 'css', '', 'stats-svg.css')."'");
$this->xml_object->appendChild($style);
// Create the root SVG element
$this->svg = $this->xml_object->createElement('svg');
$this->svg->setAttribute('xmlns:svg', 'http://www.w3.org/2000/svg');
$this->svg->setAttribute('xmlns', 'http://www.w3.org/2000/svg');
$this->svg->setAttribute('xmlns:xlink', 'http://www.w3.org/1999/xlink');
$this->svg->setAttribute('version', '1.1');
$this->svg->setAttribute('width', $width);
$this->svg->setAttribute('height', $height);
$this->svg->setAttribute('id', 'svg');
$this->xml_object->appendChild($this->svg);
// Create a definition
$this->xml_elements['basic_defs'] = $this->xml_object->createElement('defs');
$path = $this->xml_object->createElement('path');
$path->setAttribute('id', 'mark');
$path->setAttribute('d', 'M 0,234 v 4 ');
$path->setAttribute('stroke', '#596171');
$path->setAttribute('stroke-width', '2px');
$this->xml_elements['basic_defs']->appendChild($path);
// Create the static background
$this->xml_elements['static_background'] = $this->xml_object->createElement('g');
$this->xml_elements['static_background']->setAttribute('class', 'static-background');
// Draw the legend
$this->drawLegend();
// Draw the table
$this->drawTable($scale, $width);
// Draw the chart
$this->drawChart($scale, $width);
}
function drawLegend()
{
$pstart = 3;
$tstart = 7;
foreach ($this->legend as $item)
{
$val_path = $pstart + 11;
$val_text = $tstart + 10;
// Create the legend line
$path = $this->xml_object->createElement('path');
$path->setAttribute('d', 'M 40, '.$val_path.' L 55, '.$val_path);
$path->setAttribute('id', 'legendline');
$path->setAttribute('stroke', $item[0]);
$path->setAttribute('stroke-width', '2px');
// Create the legend text
$text = $this->xml_object->createElement('text', $item[1]);
$text->setAttribute('x', 57);
$text->setAttribute('y', $val_text);
$text->setAttribute('text-anchor', 'start');
$text->setAttribute('id', 'reftext');
$text->setAttribute('fill', $item[0]);
$text->setAttribute('font-size', '11px');
$text->setAttribute('font-family', "'DejaVu sans', Verdana, sans-serif");
// Append elemets
$this->xml_elements['static_background']->appendChild($path);
$this->xml_elements['static_background']->appendChild($text);
$pstart = $val_path;
$tstart = $val_text;
}
}
function drawTable($scale, $width)
{
// Create left scale
$top = TRUE;
$start = -17;
foreach ($scale as $level)
{
$type = $this->type;
if(($type == 'share') || ($type == 'others'))
$level = formatBytes($level);
if ($top)
$color = '#CED0D5';
else
$color = '#EAEAEA';
$m = $start + 50;
$path = $this->xml_object->createElement('path');
$path->setAttribute('d', 'M 38, '.$m.' L '.$width.', '.$m);
$path->setAttribute('stroke', $color);
$path->setAttribute('stroke-width', '1px');
$text = $this->xml_object->createElement('text', $level);
$text->setAttribute('x', 34);
$text->setAttribute('y', ($m + 3));
$text->setAttribute('text-anchor', 'end');
$text->setAttribute('class', 'refleft');
$this->xml_elements['static_background']->appendChild($path);
$this->xml_elements['static_background']->appendChild($text);
$top = FALSE;
$start = $m;
}
// Add zero
$text = $this->xml_object->createElement('text', 0);
$text->setAttribute('x', 34);
$text->setAttribute('y', 236);
$text->setAttribute('text-anchor', 'end');
$text->setAttribute('class', 'refleft');
$this->xml_elements['static_background']->appendChild($text);
}
function drawChart($scale, $width)
{
if (isset($this->datas[0]) && is_array($this->datas[0]))
{
$foreached_datas = $this->datas[0];
$onlykeys_datas = array_keys($this->datas[0]);
$secondary_datas = array_keys($this->datas[1]);
}
else
{
$foreached_datas = $this->datas;
$onlykeys_datas = array_keys($this->datas);
$secondary_datas = FALSE;
}
// Create graphics data
$defs = $this->xml_object->createElement('defs');
$rect = $this->xml_object->createElement('rect');
$rect->setAttribute('id', 'focusbar');
$rect->setAttribute('width', 14);
$rect->setAttribute('height', 211);
$rect->setAttribute('x', -20);
$rect->setAttribute('y', 34);
$rect->setAttribute('style', 'fill: black; opacity: 0;');
$defs->appendChild($rect);
$path = $this->xml_object->createElement('path');
$path->setAttribute('id', 'bubble');
if ($this->evolution)
$path->setAttribute('d', 'M 4.7871575,0.5 L 39.084404,0.5 C 41.459488,0.5 43.371561,2.73 43.371561,5.5 L 43.371561,25.49999 L 43.30,31.05 L 4.7871575,30.49999 C 2.412072,30.49999 0.5,28.26999 0.5,25.49999 L 0.5,5.5 C 0.5,2.73 2.412072,0.5 4.7871575,0.5 z');
elseif ($secondary_datas)
$path->setAttribute('d', 'M 1,0 v 8 l -6,-10 c -1.5,-2 -1.5,-2 -6,-2 h -36 c -3,0 -6,-3 -6,-6 v -28 c 0,-3 3,-6 6,-6 h 43 c 3,0 6,3 6,6 z');
else
$path->setAttribute('d', 'M 4.7871575,0.5 L 39.084404,0.5 C 41.459488,0.5 43.371561,2.73 43.371561,5.5 L 43.371561,25.49999 C 43.371561,27.07677 43.83887,41.00777 42.990767,40.95796 C 42.137828,40.90787 37.97451,30.49999 36.951406,30.49999 L 4.7871575,30.49999 C 2.412072,30.49999 0.5,28.26999 0.5,25.49999 L 0.5,5.5 C 0.5,2.73 2.412072,0.5 4.7871575,0.5 z');
$path->setAttribute('fill', 'none');
$path->setAttribute('fill-opacity', '0.85');
$path->setAttribute('pointer-events', 'none');
$path->setAttribute('stroke-linejoin', 'round');
$path->setAttribute('stroke', 'none');
$path->setAttribute('stroke-opacity', '0.8');
$path->setAttribute('stroke-width', '1px');
$defs->appendChild($path);
$rect = $this->xml_object->createElement('rect');
$rect->setAttribute('id', 'graphicbar');
$rect->setAttribute('width', '12');
$rect->setAttribute('height', '200');
$rect->setAttribute('rx', '2');
$rect->setAttribute('ry', '1');
$rect->setAttribute('fill', '#6C84C0');
$rect->setAttribute('fill-opacity', '0.6');
$rect->setAttribute('stroke', '#5276A9');
$rect->setAttribute('stroke-width', '1px');
$defs->appendChild($rect);
$rect = $this->xml_object->createElement('rect');
$rect->setAttribute('style', 'fill:#8B2323');
$rect->setAttribute('id', 'rectpoint');
$rect->setAttribute('width', 4);
$rect->setAttribute('height', 4);
$defs->appendChild($rect);
$this->xml_elements['chart_defs'] = $defs;
$global_g = $this->xml_object->createElement('g');
// Calc
$x_base = 35;
$y_base = 20;
$start = 18;
$element = 0;
$chart_defs = '';
$xprevious = 38;
$tprevious = 233;
foreach ($foreached_datas as $key => $data)
{
$x = 27 + $x_base;
$y = 107 + $y_base;
$top = 233 - ceil($data / ($scale[4] / 100) * 2);
if ($top <= 50)
$bubble_top = 55;
elseif (!$secondary_datas)
$bubble_top = ($top - 42);
elseif ($secondary_datas)
$bubble_top = ($top - 10);
$type = $this->type;
if(($type == 'share') || ($type == 'others'))
$value = formatBytes($data);
else
$value = $data;
// Create the chart with datas
$g = $this->xml_object->createElement('g');
$g->setAttribute('transform', 'translate('.$x.')');
$duse = $this->xml_object->createElement('use');
$duse->setAttribute('xlink:href', '#mark');
$duse->setAttribute('xmlns:xlink', 'http://www.w3.org/1999/xlink');
$g->appendChild($duse);
$data_g = $this->xml_object->createElement('g');
$data_g->setAttribute('class', 'gbar');
if ($this->link)
{
$text = $this->xml_object->createElement('text');
$link = $this->xml_object->createElement('a', mb_substr(filterSpecialXML($onlykeys_datas[$element]), 0, 7));
$link->setAttribute('xlink:href', str_replace('{data}', filterSpecialXML($onlykeys_datas[$element]), $this->link));
$link->setAttribute('target', '_main');
$text->appendChild($link);
}
else
$text = $this->xml_object->createElement('text', mb_substr(filterSpecialXML($onlykeys_datas[$element]), 0, 7));
$text->setAttribute('class', 'reftext');
$text->setAttribute('y', 248);
$text->setAttribute('text-anchor', 'middle');
$data_g->appendChild($text);
$uselink = $this->xml_object->createElement('use');
$uselink->setAttribute('xlink:href', '#focusbar');
$uselink->setAttribute('xmlns:xlink', 'http://www.w3.org/1999/xlink');
$data_g->appendChild($uselink);
if (!$this->evolution)
{
$rect = $this->xml_object->createElement('rect');
$rect->setAttribute('class', 'bluebar');
$rect->setAttribute('height', (233 - $top));
$rect->setAttribute('width', 13);
$rect->setAttribute('x', -6);
$rect->setAttribute('y', $top);
$rect->setAttribute('fill', $this->legend[0][0]);
$rect->setAttribute('fill-opacity', '0.6');
$data_g->appendChild($rect);
}
else
{
$use = $this->xml_object->createElement('use');
$use->setAttribute('xlink:href', '#rectpoint');
$use->setAttribute('y', ($top - 1));
$use->setAttribute('x', -2);
$data_g->appendChild($use);
if ($x != (35 + 27))
$chart_defs .= 'L '.$x.' '.$top.' ';
else
$chart_defs .= 'M '.$xprevious.' '.$tprevious.' L '.$x.' '.$top.' ';
$xprevious = $x;
$tprevious = $top;
}
if ($secondary_datas && isset($secondary_datas[$element]))
{
$datalink = $secondary_datas[$element];
$dataval = $this->datas[1][$datalink];
$stop = 233 - ceil($dataval / ($scale[4] / 100) * 2);
$rect = $this->xml_object->createElement('rect');
$rect->setAttribute('class', 'redbar');
$rect->setAttribute('height', (233 - $stop));
$rect->setAttribute('width', 13);
$rect->setAttribute('x', -6);
$rect->setAttribute('y', $stop);
$rect->setAttribute('fill', $this->legend[1][0]);
$rect->setAttribute('fill-opacity', '0.7');
$data_g->appendChild($rect);
}
if (!$this->evolution)
{
$path = $this->xml_object->createElement('path');
$path->setAttribute('stroke', '#5276A9');
$path->setAttribute('stroke-width', '2px');
$path->setAttribute('fill', 'none');
$path->setAttribute('d', 'M -7,233 v -'.(232 - $top).' c 0,-1 1,-1 1,-1 h 12 c 1,0 2,0 2,1 v '.(232 - $top).' z');
$data_g->appendChild($path);
}
$uselink = $this->xml_object->createElement('use');
$uselink->setAttribute('xmlns:xlink', 'http://www.w3.org/1999/xlink');
$uselink->setAttribute('xlink:href', '#bubble');
$uselink->setAttribute('y', $bubble_top);
if (!$secondary_datas)
$uselink->setAttribute('x', -42);
$data_g->appendChild($uselink);
$text = $this->xml_object->createElement('text', $value);
$text->setAttribute('class', 'bubbletextblue');
$text->setAttribute('x', -10);
if (!$secondary_datas)
$text->setAttribute('y', ($bubble_top + 20));
else
$text->setAttribute('y', ($bubble_top - 27));
$text->setAttribute('fill', 'none');
$data_g->appendChild($text);
if ($secondary_datas && isset($secondary_datas[$element]))
{
$text = $this->xml_object->createElement('text', $dataval);
$text->setAttribute('class', 'bubbletextred');
$text->setAttribute('x', -10);
$text->setAttribute('y', ($bubble_top - 11));
$text->setAttribute('fill', 'none');
$data_g->appendChild($text);
}
$g->appendChild($data_g);
$global_g->appendChild($g);
$x_base = $x_base + 50;
$y_base = $y_base + 20;
$element ++;
}
if ($this->evolution)
{
$path = $this->xml_object->createElement('path');
$path->setAttribute('d', $chart_defs);
$path->setAttribute('stroke', $this->legend[0][0]);
$path->setAttribute('stroke-width', '1px');
$path->setAttribute('fill', 'none');
$this->xml_elements['evolution_path'] = $path;
}
$this->xml_elements['global_g'] = $global_g;
$path = $this->xml_object->createElement('path');
$path->setAttribute('d', 'M 38,233 h '.$width);
$path->setAttribute('stroke', '#2F4F77');
$path->setAttribute('stroke-width', '2px');
$path->setAttribute('pointer-events', 'none');
$this->xml_elements['final_path'] = $path;
}
function has_errors()
{
return $this->has_errors;
}
function getXMLOutput()
{
if (isset($this->xml_object))
{
// Add SVG elements to the DOM object
foreach($this->xml_elements as $element)
$this->svg->appendChild($element);
// Return the XML
$this->xml_object->formatOutput = true;
return $this->xml_object->saveXML();
}
}
}
?>
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