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Badge.php
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Badge.php
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<?php
/**
* Badge
* This is an identification tag based on SVG
* @author http://weibo.com/yakeing
* @version 5.0
* logo ≥14px
* 97CA00 green
* 8892BF purple
* F66000 orange
* 007EC6 blue
*
* 1024x768或800x600等标准的分辨率计算出来的dpi是一个常数：96
* ===================================================
* 1英寸=72磅,1磅=1/72英寸
* 9磅(96) = 9*1/72=1/8 inch
*/
namespace php_badge;
class Badge{
public $imageFontFile = 'verdana.ttf'; //font file path
public $NonEnglishReg = '/[\x{4e00}-\x{9fa5}]/u'; //Non-English String //[Chinese]
public $CacheControl = 'must-revalidate, max-age=600, public'; //no-cache
private $imageFontSize = 8; //image font size
private $svgFontSize = 110; //svg font size
private $svgFontFamily = "DejaVu Sans,Verdana,Geneva,sans-serif,Microsoft YaHei"; //svg font family
/* svg
* $str = array(array('Version','007ec6')...)
* $icon = false / path (<path d="M23....." fill="#FFF"></path>)
* $viewBox = string (x, y, Width, Height)
* $Stroke = bool (path Stroke)
* $opacity = 0.0 - 1 (transparency)
* $SimplexmlNo = bool (Simplexml / Assembly)
* $OutputNo = bool (Output)
*/
public function svg($str, $icon=false, $viewBox='-250 -85 1200 1200', $Stroke=false, $opacity=1, $SimplexmlNo=false, $OutputNo=false){
if(!is_numeric($opacity) || 0 > $opacity || 1 < $opacity){
$opacity = 1;
}
if(!is_file($this->imageFontFile)){
throw new Exception('ERROR: {$this->imageFontFile} file does not exist');
}
$data = $this->GenerateData($str, $icon, $viewBox, $Stroke, $opacity);
if(true === $SimplexmlNo){
$svg = $this->SimplexmlSvg($data);
}else{
$svg = $this->Assembly($data);
}
if(false === $OutputNo){
$this->Output($svg);
}else{
return $svg;
}
} //END svg
//Generate Data
private function GenerateData($str, $icon, $viewBox, $Stroke, $opacity){
$data = array('icon' => $icon, 'viewBox' => $viewBox, 'opacity' => $opacity);
$i = $x = $M = $w = 0;
if(!is_bool($icon)){
$x = 180;
$w = 18;
}
if(true === $Stroke){
$StrokeColour = $str[0][1];
}else if(false !== $Stroke){
$StrokeColour = $Stroke;
}
$all = count($str)-1;
// foreach ($str as $i => $v){
foreach ($str as $v){
$len = mb_strlen($v[0], 'utf8'); //strlen
$NonEnglish = preg_match_all($this->NonEnglishReg, $v[0]);
$imageBox = imagettfbbox($this->imageFontSize, 0, $this->imageFontFile, $v[0]);
$StrWidth = abs($imageBox[2] - $imageBox[0])+($NonEnglish*5);
if(($len%2 != 0)){
++$StrWidth; //odd
}// --$wx; //even
$w += $StrWidth+10;
$textLength = $StrWidth*10;
$p = 50+($StrWidth*5);
$x += $p;
if(0 == $all){
$w -= 4;
$path_d = $this->PathD($M, $w, 'alone');
}else if(0 == $i){
$path_d = $this->PathD($M, $w, 'first');
}else if($all == $i){
$w -= 4;
$path_d = $this->PathD($M, $w, 'last');
}else{
$path_d = $this->PathD($M, $w, 'middle');
}
if(!$Stroke){ // false
$StrokeColour = $v[1];
}
$data['list'][$i] = array(
'path' => array('fill'=>$v[1], 'stroke'=>$StrokeColour, 'd'=>$path_d),
'text' => array('x'=>$x, 'textLength'=>$textLength, 'string'=>$v[0])
);
$x += $p;
$M += $w;
$w = 0;
++$i;
}
$M += 0.5;
$data['width'] = $M+3;
$data['Last_path_d'] = $this->PathD(0, $M, 'alone');
return $data;
} //END
//Assembly
private function Assembly($data){
$icons = $textLabel = $pathLabel = '';
foreach ($data['list'] as $d){
$pathLabel .= '<path fill="#'.$d['path']['fill'].'" fill-rule="nonzero" stroke="#'.$d['path']['stroke'].'" d="'.$d['path']['d'].'"/>';
$textLabel .= '<text x="'.$d['text']['x'].'" y="150" fill="#010101" fill-opacity=".3" transform="scale(.1)" textLength="'.$d['text']['textLength'].'">'.$d['text']['string'].'</text>';
$textLabel .= '<text x="'.$d['text']['x'].'" y="140" transform="scale(.1)" textLength="'.$d['text']['textLength'].'">'.$d['text']['string'].'</text>';
}
if(!is_bool($data['icon'])){
$icons = '<svg viewBox="'.$data['viewBox'].'" preserveAspectRatio="xMinYMid meet" opacity="'.$data['opacity'].'">'.$data['icon'].'</svg>';
}
$pathLabel .= '<path fill="url(#a)" d="'.$data['Last_path_d'].'"/>';
return '<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="'.$data['width'].'" height="20"><linearGradient id="a" x2="0" y2="100%"><stop offset="0" stop-color="#bbb" stop-opacity=".1"/><stop offset="1" stop-opacity=".1"/></linearGradient><g fill="none" fill-rule="evenodd">'.$pathLabel.'</g><g fill="#fff" text-anchor="middle" font-family="'.$this->svgFontFamily.'" font-size="'.$this->svgFontSize.'">'.$textLabel.'</g>'.$icons.'</svg>';
} //END
//simplexml Svg
private function SimplexmlSvg($data){
$string ='<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" height="20">';
$string .='<linearGradient id="a" x2="0" y2="100%"><stop offset="0" stop-color="#bbb" stop-opacity=".1"/>';
$string .='<stop offset="1" stop-opacity=".1"/></linearGradient></svg>';
$svg = simplexml_load_string($string);
$svg->addAttribute('width', $data['width']);
$gPath = $svg->addChild('g');
$gPath->addAttribute('fill', 'none');
$gPath->addAttribute('fill-rule', 'evenodd');
$gtext = $svg->addChild('g');
$gtext->addAttribute('fill', '#fff');
$gtext->addAttribute('text-anchor', 'middle');
$gtext->addAttribute('font-family',$this->svgFontFamily);
$gtext->addAttribute('font-size', $this->svgFontSize);
foreach ($data['list'] as $d){
//---------- path -----------
$path = $gPath->addChild('path');
$path->addAttribute('fill', '#'.$d['path']['fill']);
$path->addAttribute('fill-rule', 'nonzero');
$path->addAttribute('stroke', '#'.$d['path']['stroke']);
$path->addAttribute('d', $d['path']['d']);
//------- text ---------
$text = $gtext->addChild('text', $d['text']['string']);
$text->addAttribute('x', $d['text']['x']);//$x
$text->addAttribute('y', '150');//150
$text->addAttribute('fill', '#010101');
$text->addAttribute('fill-opacity', '.3');
$text->addAttribute('transform', 'scale(.1)');
$text->addAttribute('textLength', $d['text']['textLength']);
$text = $gtext->addChild('text', $d['text']['string']);
$text->addAttribute('x', $d['text']['x']);
$text->addAttribute('y', '140');
$text->addAttribute('transform', 'scale(.1)');
$text->addAttribute('textLength', $d['text']['textLength']);
}
$path = $gPath->addChild('path');
$path->addAttribute('fill', 'url(#a)');
$path->addAttribute('d', $data['Last_path_d']);
if(!is_bool($data['icon'])){
$xmlS = $svg->addChild('svg');
$icon = simplexml_load_string('<svg>'.$data['icon'].'</svg>');
/* get svg icon <s><x><t><t2>...<s>
$icon = simplexml_load_string($data['icon']);
// $svg->getDocNamespaces() xmlns:xxx=xxx
$xmlS = $svg->addChild($icon->getName());
foreach($icon->attributes() as $k => $v){
$xmlS->addAttribute($k,$v);
} */
foreach($icon->children() as $child){
$xmlP = $xmlS->addChild($child->getName());
foreach($child->attributes() as $k => $v){
$xmlP->addAttribute($k,$v);
}
}
$xmlS->addAttribute('viewBox', $data['viewBox']);
$xmlS->addAttribute('preserveAspectRatio', 'xMinYMid meet');
$xmlS->addAttribute('opacity', $data['opacity']);
}
return $svg->asXML();
} //END
//path d attribute
private function PathD($M, $w, $position){
$left_upper = 'C.5 2.5143 0.5215 .5 3.0046 .5';
$right_upper = 'c2.459 0 2.4905 1.6715 2.4905 3.7805';
$right_down = 'c0 2.1105 -0.0334 3.7805 -2.4905 3.7805';
$left_down = 'C2.518 19.5 .5 19.4857 .5 18.0052';
switch($position) {
case 'alone':
// 1-2-4-3
$d = 'M.5 4.9948'.$left_upper.'H'.$w.$right_upper.'v11.439'.$right_down.'H3.0046'.$left_down.'V4.9948z';
break;
case 'first':
$d = 'M.5 4.9948'.$left_upper.'H'.$w.'v19H3.0046'.$left_down.'V4.9948z';
break;
case 'middle':
$M +=0.5;
$d = 'M'.$M.' .5h'.$w.'v19H'.$M.'z';
break;
case 'last':
$M +=0.5;
//$w +=0.5095;
$d = 'M'.$M.' .5h'.$w.$right_upper.'v11.439'.$right_down.'H'.$M.'V.5z';
break;
}
return $d;
} //END PathD
//Output code
private function Output($svg){
header('Content-Disposition: inline; filename="image.svg"');
header('Cache-Control: '.$this->CacheControl);
header('Content-Type: image/svg+xml');
echo $svg;
} //END Output
}