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194 lines
5.7 KiB
PHP
194 lines
5.7 KiB
PHP
<?
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class GOOGLE_CHARTS {
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protected $URL = 'http://chart.apis.google.com/chart';
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protected $Labels = array();
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protected $Data = array();
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protected $Options = array();
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public function __construct($Type, $Width, $Height, $Options) {
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if ($Width * $Height > 300000 || $Height > 1000 || $Width > 1000) {
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trigger_error('Tried to make chart too large.');
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}
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$this->URL .= "?cht=$Type&chs={$Width}x$Height";
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$this->Options = $Options;
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}
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protected function encode($Number) {
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if ($Number == -1) {
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return '__';
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}
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$CharKey = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-.';
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return $CharKey[floor($Number / 64)].$CharKey[floor($Number % 64)];
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}
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public function color($Colors) {
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$this->URL .= '&chco='.$Colors;
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}
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public function lines($Thickness, $Solid = 1, $Blank = 0) {
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$this->URL .= "&chls=$Thickness,$Solid,$Blank";
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}
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public function title($Title, $Color = '', $Size = '') {
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$this->URL .= '&chtt='.str_replace(array(' ', "\n"), array('+', '|'), $Title);
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if (!empty($Color)) {
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$this->URL .= '&chts='.$Color;
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}
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if (!empty($Size)) {
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$this->URL .= ','.$Size;
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}
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}
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public function legend($Items, $Placement = '') {
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$this->URL .= '&chdl='.str_replace(' ', '+', implode('|', $Items));
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if (!empty($Placement)) {
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if (!in_array($Placement, array('b', 't', 'r', 'l', 'bv', 'tv'))) {
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trigger_error('Invalid legend placement.');
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}
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$this->URL .= '&chdlp='.$Placement;
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}
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}
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public function add($Label, $Data) {
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if ($Label !== false) {
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$this->Labels[] = $Label;
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}
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$this->Data[] = $Data;
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}
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public function grid_lines($SpacingX = 0, $SpacingY = -1, $Solid = 1, $Blank = 1) {
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//Can take 2 more parameters for offset, but we're not bothering with that right now
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$this->URL .= "&chg=$SpacingX,$SpacingY,$Solid,$Blank";
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}
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public function transparent() {
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$this->URL .= '&chf=bg,s,FFFFFF00';
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}
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public function url() {
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return $this->URL;
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}
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}
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class AREA_GRAPH extends GOOGLE_CHARTS {
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public function __construct ($Width, $Height, $Options = array()) {
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parent::__construct('lc', $Width, $Height, $Options);
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}
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public function color ($Color) {
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$this->URL .= '&chco='.$Color.'&chm=B,'.$Color.'50,0,0,0';
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}
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public function generate() {
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$Max = max($this->Data);
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$Min = ((isset($this->Options['Break'])) ? $Min = min($this->Data) : 0);
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$Data = array();
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foreach ($this->Data as $Value) {
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$Data[] = $this->encode((($Value - $Min) / ($Max - $Min)) * 4095);
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}
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$this->URL .= "&chxt=y,x&chxs=0,h&chxl=1:|".implode('|', $this->Labels).'&chxr=0,'.$Min.','.($Max - $Min).'&chd=e:'.implode('', $Data);
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}
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}
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class PIE_CHART extends GOOGLE_CHARTS {
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public function __construct ($Width, $Height, $Options = array()) {
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$Type = ((isset($this->Options['3D'])) ? 'p3' : 'p');
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parent::__construct($Type, $Width, $Height, $Options);
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}
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public function generate() {
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$Sum = array_sum($this->Data);
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$Other = isset($this->Options['Other']);
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$Sort = isset($this->Options['Sort']);
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$LabelPercent = isset($this->Options['Percentage']);
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if ($Sort && !empty($this->Labels)) {
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array_multisort($this->Data, SORT_DESC, $this->Labels);
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} elseif ($Sort) {
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sort($this->Data);
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$this->Data = array_reverse($this->Data);
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}
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$Data = array();
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$Labels = $this->Labels;
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$OtherPercentage = 0.00;
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$OtherData = 0;
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foreach ($this->Data as $Key => $Value) {
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$ThisPercentage = number_format(($Value / $Sum) * 100, 2);
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$ThisData = ($Value / $Sum) * 4095;
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if ($Other && $ThisPercentage < 1) {
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$OtherPercentage += $ThisPercentage;
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$OtherData += $ThisData;
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unset($Data[$Key]);
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unset($Labels[$Key]);
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continue;
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}
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if ($LabelPercent) {
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$Labels[$Key] .= ' ('.$ThisPercentage.'%)';
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}
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$Data[] = $this->encode($ThisData);
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}
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if ($OtherPercentage > 0) {
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$OtherLabel = 'Other';
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if ($LabelPercent) {
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$OtherLabel .= ' ('.$OtherPercentage.'%)';
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}
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$Labels[] = $OtherLabel;
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$Data[] = $this->encode($OtherData);
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}
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$this->URL .= "&chl=".implode('|', $Labels).'&chd=e:'.implode('', $Data);
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}
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}
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class LOG_BAR_GRAPH extends GOOGLE_CHARTS {
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//TODO: Finish.
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public function __construct ($Base, $Width, $Height, $Options = array()) {
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parent::__construct('lc', $Width, $Height, $Options);
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}
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public function color ($Color) {
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$this->URL .= '&chco='.$Color.'&chm=B,'.$Color.'50,0,0,0';
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}
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public function generate() {
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$Max = max($this->Data);
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$Min = ((isset($this->Options['Break'])) ? $Min = min($this->Data) : 0);
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$Data = array();
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foreach ($this->Data as $Value) {
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$Data[] = $this->encode((($Value - $Min) / ($Max - $Min)) * 4095);
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}
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$this->URL .= "&chxt=y,x&chxs=0,h&chxl=1:|".implode('|', $this->Labels).'&chxr=0,'.$Min.','.($Max-$Min).'&chd=e:'.implode('', $Data);
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}
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}
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class POLL_GRAPH extends GOOGLE_CHARTS {
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public function __construct () {
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$this->URL .= '?cht=bhg';
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}
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public function add($Label, $Data) {
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if ($Label !== false) {
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$this->Labels[] = Format::cut_string($Label, 35);
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}
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$this->Data[] = $Data;
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}
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public function generate() {
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$Count = count($this->Data);
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$Height = (30 * $Count) + 20;
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$Max = max($this->Data);
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$Sum = array_sum($this->Data);
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$Increment = ($Max / $Sum) * 25; // * 100% / 4divisions
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$Data = array();
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$Labels = array();
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foreach ($this->Data as $Key => $Value) {
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$Data[] = $this->encode(($Value / $Max) * 4095);
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$Labels[] = '@t'.str_replace(array(' ', ','),array('+', '\,'), $this->Labels[$Key]).',000000,1,'.round((($Key + 1) / $Count) - (12 / $Height), 2).':0,12';
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}
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$this->URL .= "&chbh=25,0,5&chs=214x$Height&chl=0%|".round($Increment, 1)."%|".round($Increment * 2, 1)."%|".round($Increment * 3, 1)."%|".round($Increment * 4, 1)."%&chm=".implode('|', $Labels).'&chd=e:'.implode('', $Data);
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}
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}
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