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<?phpclass grad {var $mpdf = null;function grad(&$mpdf) {$this->mpdf = $mpdf;}// mPDF 5.3.A1function CoonsPatchMesh($x, $y, $w, $h, $patch_array=array(), $x_min=0, $x_max=1, $y_min=0, $y_max=1, $colspace='RGB', $return=false){$s=' q ';$s.=sprintf(' %.3F %.3F %.3F %.3F re W n ', $x*_MPDFK, ($this->mpdf->h-$y)*_MPDFK, $w*_MPDFK, -$h*_MPDFK);$s.=sprintf(' %.3F 0 0 %.3F %.3F %.3F cm ', $w*_MPDFK, $h*_MPDFK, $x*_MPDFK, ($this->mpdf->h-($y+$h))*_MPDFK);$n = count($this->mpdf->gradients)+1;$this->mpdf->gradients[$n]['type'] = 6; //coons patch mesh$this->mpdf->gradients[$n]['colorspace'] = $colspace; //coons patch mesh$bpcd=65535; //16 BitsPerCoordinate$trans = false;$this->mpdf->gradients[$n]['stream']='';for($i=0;$i<count($patch_array);$i++){$this->mpdf->gradients[$n]['stream'].=chr($patch_array[$i]['f']); //start with the edge flag as 8 bitfor($j=0;$j<count($patch_array[$i]['points']);$j++){//each point as 16 bitif (($j % 2) == 1) { // Y coordinate (adjusted as input is From top left)$patch_array[$i]['points'][$j]=(($patch_array[$i]['points'][$j]-$y_min)/($y_max-$y_min))*$bpcd;$patch_array[$i]['points'][$j]=$bpcd-$patch_array[$i]['points'][$j];}else {$patch_array[$i]['points'][$j]=(($patch_array[$i]['points'][$j]-$x_min)/($x_max-$x_min))*$bpcd;}if($patch_array[$i]['points'][$j]<0) $patch_array[$i]['points'][$j]=0;if($patch_array[$i]['points'][$j]>$bpcd) $patch_array[$i]['points'][$j]=$bpcd;$this->mpdf->gradients[$n]['stream'].=chr(floor($patch_array[$i]['points'][$j]/256));$this->mpdf->gradients[$n]['stream'].=chr(floor($patch_array[$i]['points'][$j]%256));}for($j=0;$j<count($patch_array[$i]['colors']);$j++){//each color component as 8 bitif ($colspace=='RGB') {$this->mpdf->gradients[$n]['stream'].=($patch_array[$i]['colors'][$j][1]);$this->mpdf->gradients[$n]['stream'].=($patch_array[$i]['colors'][$j][2]);$this->mpdf->gradients[$n]['stream'].=($patch_array[$i]['colors'][$j][3]);if (isset($patch_array[$i]['colors'][$j][4]) && ord($patch_array[$i]['colors'][$j][4])<100) { $trans = true; }}else if ($colspace=='CMYK') {$this->mpdf->gradients[$n]['stream'].=chr(ord($patch_array[$i]['colors'][$j][1])*2.55);$this->mpdf->gradients[$n]['stream'].=chr(ord($patch_array[$i]['colors'][$j][2])*2.55);$this->mpdf->gradients[$n]['stream'].=chr(ord($patch_array[$i]['colors'][$j][3])*2.55);$this->mpdf->gradients[$n]['stream'].=chr(ord($patch_array[$i]['colors'][$j][4])*2.55);if (isset($patch_array[$i]['colors'][$j][5]) && ord($patch_array[$i]['colors'][$j][5])<100) { $trans = true; }}else if ($colspace=='Gray') {$this->mpdf->gradients[$n]['stream'].=($patch_array[$i]['colors'][$j][1]);if ($patch_array[$i]['colors'][$j][2]==1) { $trans = true; } // transparency converted from rgba or cmyka()}}}// TRANSPARENCYif ($trans) {$this->mpdf->gradients[$n]['stream_trans']='';for($i=0;$i<count($patch_array);$i++){$this->mpdf->gradients[$n]['stream_trans'].=chr($patch_array[$i]['f']);for($j=0;$j<count($patch_array[$i]['points']);$j++){//each point as 16 bit$this->mpdf->gradients[$n]['stream_trans'].=chr(floor($patch_array[$i]['points'][$j]/256));$this->mpdf->gradients[$n]['stream_trans'].=chr(floor($patch_array[$i]['points'][$j]%256));}for($j=0;$j<count($patch_array[$i]['colors']);$j++){//each color component as 8 bit // OPACITYif ($colspace=='RGB') {$this->mpdf->gradients[$n]['stream_trans'].=chr(intval(ord($patch_array[$i]['colors'][$j][4])*2.55));}else if ($colspace=='CMYK') {$this->mpdf->gradients[$n]['stream_trans'].=chr(intval(ord($patch_array[$i]['colors'][$j][5])*2.55));}else if ($colspace=='Gray') {$this->mpdf->gradients[$n]['stream_trans'].=chr(intval(ord($patch_array[$i]['colors'][$j][3])*2.55));}}}$this->mpdf->gradients[$n]['trans'] = true;$s .= ' /TGS'.$n.' gs ';}//paint the gradient$s .= '/Sh'.$n.' sh'."\n";//restore previous Graphic State$s .= 'Q'."\n";if ($return) { return $s; }else { $this->mpdf->_out($s); }}// type = linear:2; radial: 3;// Linear: $coords - array of the form (x1, y1, x2, y2) which defines the gradient vector (see linear_gradient_coords.jpg).// The default value is from left to right (x1=0, y1=0, x2=1, y2=0).// Radial: $coords - array of the form (fx, fy, cx, cy, r) where (fx, fy) is the starting point of the gradient with color1,// (cx, cy) is the center of the circle with color2, and r is the radius of the circle (see radial_gradient_coords.jpg).// (fx, fy) should be inside the circle, otherwise some areas will not be defined// $col = array(R,G,B/255); or array(G/255); or array(C,M,Y,K/100)// $stops = array('col'=>$col [, 'opacity'=>0-1] [, 'offset'=>0-1])function Gradient($x, $y, $w, $h, $type, $stops=array(), $colorspace='RGB', $coords='', $extend='', $return=false, $is_mask=false) {if (strtoupper(substr($type,0,1)) == 'L') { $type = 2; } // linearelse if (strtoupper(substr($type,0,1)) == 'R') { $type = 3; } // radialif ($colorspace != 'CMYK' && $colorspace != 'Gray') {$colorspace = 'RGB';}$bboxw = $w;$bboxh = $h;$usex = $x;$usey = $y;$usew = $bboxw;$useh = $bboxh;if ($type < 1) { $type = 2; }if ($coords[0]!==false && preg_match('/([0-9.]+(px|em|ex|pc|pt|cm|mm|in))/i',$coords[0],$m)) {$tmp = $this->mpdf->ConvertSize($m[1],$this->mpdf->w,$this->mpdf->FontSize,false);if ($tmp) { $coords[0] = $tmp/$w; }}if ($coords[1]!==false && preg_match('/([0-9.]+(px|em|ex|pc|pt|cm|mm|in))/i',$coords[1],$m)) {$tmp = $this->mpdf->ConvertSize($m[1],$this->mpdf->w,$this->mpdf->FontSize,false);if ($tmp) { $coords[1] = 1-($tmp/$h); }}// LINEARif ($type == 2) {$angle = $coords[4];$repeat = $coords[5];// ALL POINTS SET (default for custom mPDF linear gradient) - no -mozif ($coords[0]!==false && $coords[1]!==false && $coords[2]!==false && $coords[3]!==false) {// do nothing - coords used as they are}// If both a <point> and <angle> are defined, the gradient axis starts from the point and runs along the angle. The end point is// defined as before - in this case start points may not be in corners, and axis may not correctly fall in the right quadrant.// NO end points (Angle defined & Start points)else if ($angle!==false && $coords[0]!==false && $coords[1]!==false && $coords[2]===false && $coords[3]===false) {if ($angle==0 || $angle==360) { $coords[3]=$coords[1]; if ($coords[0]==1) $coords[2]=2; else $coords[2]=1; }else if ($angle==90) { $coords[2]=$coords[0]; $coords[3]=1; if ($coords[1]==1) $coords[3]=2; else $coords[3]=1; }else if ($angle==180) { if ($coords[4]==0) $coords[2]=-1; else $coords[2]=0; $coords[3]=$coords[1]; }else if ($angle==270) { $coords[2]=$coords[0]; if ($coords[1]==0) $coords[3]=-1; else $coords[3]=0; }else {$endx=1; $endy=1;if ($angle <=90) {if ($angle <=45) { $endy=tan(deg2rad($angle)); }else { $endx=tan(deg2rad(90-$angle)); }$b = atan2(($endy*$bboxh), ($endx*$bboxw));$ny = 1 - $coords[1] - (tan($b) * (1-$coords[0]));$tx = sin($b) * cos($b) * $ny;$ty = cos($b) * cos($b) * $ny;$coords[2] = 1+$tx; $coords[3] = 1-$ty;}else if ($angle <=180) {if ($angle <=135) { $endx=tan(deg2rad($angle-90)); }else { $endy=tan(deg2rad(180-$angle)); }$b = atan2(($endy*$bboxh), ($endx*$bboxw));$ny = 1 - $coords[1] - (tan($b) * ($coords[0]));$tx = sin($b) * cos($b) * $ny;$ty = cos($b) * cos($b) * $ny;$coords[2] = -$tx; $coords[3] = 1-$ty;}else if ($angle <=270) {if ($angle <=225) { $endy=tan(deg2rad($angle-180)); }else { $endx=tan(deg2rad(270-$angle)); }$b = atan2(($endy*$bboxh), ($endx*$bboxw));$ny = $coords[1] - (tan($b) * ($coords[0]));$tx = sin($b) * cos($b) * $ny;$ty = cos($b) * cos($b) * $ny;$coords[2] = -$tx; $coords[3] = $ty;}else {if ($angle <=315) { $endx=tan(deg2rad($angle-270)); }else { $endy=tan(deg2rad(360-$angle)); }$b = atan2(($endy*$bboxh), ($endx*$bboxw));$ny = $coords[1] - (tan($b) * (1-$coords[0]));$tx = sin($b) * cos($b) * $ny;$ty = cos($b) * cos($b) * $ny;$coords[2] = 1+$tx; $coords[3] = $ty;}}}// -moz If the first parameter is only an <angle>, the gradient axis starts from the box's corner that would ensure the// axis goes through the box. The axis runs along the specified angle. The end point of the axis is defined such that the// farthest corner of the box from the starting point is perpendicular to the gradient axis at that point.// NO end points or Start points (Angle defined)else if ($angle!==false && $coords[0]===false && $coords[1]===false) {if ($angle==0 || $angle==360) { $coords[0]=0; $coords[1]=0; $coords[2]=1; $coords[3]=0; }else if ($angle==90) { $coords[0]=0; $coords[1]=0; $coords[2]=0; $coords[3]=1; }else if ($angle==180) { $coords[0]=1; $coords[1]=0; $coords[2]=0; $coords[3]=0; }else if ($angle==270) { $coords[0]=0; $coords[1]=1; $coords[2]=0; $coords[3]=0; }else {if ($angle <=90) {$coords[0]=0; $coords[1]=0;if ($angle <=45) { $endx=1; $endy=tan(deg2rad($angle)); }else { $endx=tan(deg2rad(90-$angle)); $endy=1; }}else if ($angle <=180) {$coords[0]=1; $coords[1]=0;if ($angle <=135) { $endx=tan(deg2rad($angle-90)); $endy=1; }else { $endx=1; $endy=tan(deg2rad(180-$angle)); }}else if ($angle <=270) {$coords[0]=1; $coords[1]=1;if ($angle <=225) { $endx=1; $endy=tan(deg2rad($angle-180)); }else { $endx=tan(deg2rad(270-$angle)); $endy=1; }}else {$coords[0]=0; $coords[1]=1;if ($angle <=315) { $endx=tan(deg2rad($angle-270)); $endy=1; }else { $endx=1; $endy=tan(deg2rad(360-$angle)); }}$b = atan2(($endy*$bboxh), ($endx*$bboxw));$h2 = $bboxh - ($bboxh * tan($b));$px = $bboxh + ($h2 * sin($b) * cos($b));$py = ($bboxh * tan($b)) + ($h2 * sin($b) * sin($b));$x1 = $px / $bboxh;$y1 = $py / $bboxh;if ($angle <=90) { $coords[2] = $x1; $coords[3] = $y1; }else if ($angle <=180) { $coords[2] = 1-$x1; $coords[3] = $y1; }else if ($angle <=270) { $coords[2] = 1-$x1; $coords[3] = 1-$y1; }else { $coords[2] = $x1; $coords[3] = 1-$y1; }}}// -moz If the first parameter to the gradient function is only a <point>, the gradient axis starts from the specified point,// and ends at the point you would get if you rotated the starting point by 180 degrees about the center of the box that the// gradient is to be applied to.// NO angle and NO end points (Start points defined)else if ((!isset($angle) || $angle===false) && $coords[0]!==false && $coords[1]!==false) { // should have start and end defined$coords[2] = 1-$coords[0]; $coords[3] = 1-$coords[1];$angle = rad2deg(atan2($coords[3]-$coords[1],$coords[2]-$coords[0]));if ($angle < 0) { $angle += 360; }else if ($angle > 360) { $angle -= 360; }if ($angle!=0 && $angle!=360 && $angle!=90 && $angle!=180 && $angle!=270) {if ($w >= $h) {$coords[1] *= $h/$w ;$coords[3] *= $h/$w ;$usew = $useh = $bboxw;$usey -= ($w-$h);}else {$coords[0] *= $w/$h ;$coords[2] *= $w/$h ;$usew = $useh = $bboxh;}}}// -moz If neither a <point> or <angle> is specified, i.e. the entire function consists of only <stop> values, the gradient// axis starts from the top of the box and runs vertically downwards, ending at the bottom of the box.else { // default values T2B// All values are set in parseMozGradient - so won't appear here$coords = array(0,0,1,0); // default for original linear gradient (L2R)}$s = ' q';$s .= sprintf(' %.3F %.3F %.3F %.3F re W n', $x*_MPDFK, ($this->mpdf->h-$y)*_MPDFK, $w*_MPDFK, -$h*_MPDFK)."\n";$s .= sprintf(' %.3F 0 0 %.3F %.3F %.3F cm', $usew*_MPDFK, $useh*_MPDFK, $usex*_MPDFK, ($this->mpdf->h-($usey+$useh))*_MPDFK)."\n";}// RADIALelse if ($type == 3) {$radius = $coords[4];$angle = $coords[5]; // ?? no effect$shape = $coords[6];$size = $coords[7];$repeat = $coords[8];// ALL POINTS AND RADIUS SET (default for custom mPDF radial gradient) - no -mozif ($coords[0]!==false && $coords[1]!==false && $coords[2]!==false && $coords[3]!==false && $coords[4]!==false) {// do nothing - coords used as they are}// If a <point> is definedelse if ($shape!==false && $size!==false) {if ($coords[2]==false) { $coords[2] = $coords[0]; }if ($coords[3]==false) { $coords[3] = $coords[1]; }// ELLIPSEif ($shape=='ellipse') {$corner1 = sqrt(pow($coords[0],2) + pow($coords[1],2));$corner2 = sqrt(pow($coords[0],2) + pow((1-$coords[1]),2));$corner3 = sqrt(pow((1-$coords[0]),2) + pow($coords[1],2));$corner4 = sqrt(pow((1-$coords[0]),2) + pow((1-$coords[1]),2));if ($size=='closest-side') { $radius = min($coords[0], $coords[1], (1-$coords[0]), (1-$coords[1])); }else if ($size=='closest-corner') { $radius = min($corner1, $corner2, $corner3, $corner4); }else if ($size=='farthest-side') { $radius = max($coords[0], $coords[1], (1-$coords[0]), (1-$coords[1])); }else { $radius = max($corner1, $corner2, $corner3, $corner4); } // farthest corner (default)}// CIRCLEelse if ($shape=='circle') {if ($w >= $h) {$coords[1] = $coords[3] = ($coords[1] * $h/$w) ;$corner1 = sqrt(pow($coords[0],2) + pow($coords[1],2));$corner2 = sqrt(pow($coords[0],2) + pow((($h/$w)-$coords[1]),2));$corner3 = sqrt(pow((1-$coords[0]),2) + pow($coords[1],2));$corner4 = sqrt(pow((1-$coords[0]),2) + pow((($h/$w)-$coords[1]),2));if ($size=='closest-side') { $radius = min($coords[0], $coords[1], (1-$coords[0]), (($h/$w)-$coords[1])); }else if ($size=='closest-corner') { $radius = min($corner1, $corner2, $corner3, $corner4); }else if ($size=='farthest-side') { $radius = max($coords[0], $coords[1], (1-$coords[0]), (($h/$w)-$coords[1])); }else if ($size=='farthest-corner') { $radius = max($corner1, $corner2, $corner3, $corner4); } // farthest corner (default)$usew = $useh = $bboxw;$usey -= ($w-$h);}else {$coords[0] = $coords[2] = ($coords[0] * $w/$h) ;$corner1 = sqrt(pow($coords[0],2) + pow($coords[1],2));$corner2 = sqrt(pow($coords[0],2) + pow((1-$coords[1]),2));$corner3 = sqrt(pow((($w/$h)-$coords[0]),2) + pow($coords[1],2));$corner4 = sqrt(pow((($w/$h)-$coords[0]),2) + pow((1-$coords[1]),2));if ($size=='closest-side') { $radius = min($coords[0], $coords[1], (($w/$h)-$coords[0]), (1-$coords[1])); }else if ($size=='closest-corner') { $radius = min($corner1, $corner2, $corner3, $corner4); }else if ($size=='farthest-side') { $radius = max($coords[0], $coords[1], (($w/$h)-$coords[0]), (1-$coords[1])); }else if ($size=='farthest-corner') { $radius = max($corner1, $corner2, $corner3, $corner4); } // farthest corner (default)$usew = $useh = $bboxh;}}if ($radius==0) { $radius=0.001; } // to prevent error$coords[4] = $radius;}// -moz If entire function consists of only <stop> valueselse { // default values// All values are set in parseMozGradient - so won't appear here$coords = array(0.5,0.5,0.5,0.5); // default for radial gradient (centred)}$s = ' q';$s .= sprintf(' %.3F %.3F %.3F %.3F re W n', $x*_MPDFK, ($this->mpdf->h-$y)*_MPDFK, $w*_MPDFK, -$h*_MPDFK)."\n";$s .= sprintf(' %.3F 0 0 %.3F %.3F %.3F cm', $usew*_MPDFK, $useh*_MPDFK, $usex*_MPDFK, ($this->mpdf->h-($usey+$useh))*_MPDFK)."\n";}$n = count($this->mpdf->gradients) + 1;$this->mpdf->gradients[$n]['type'] = $type;$this->mpdf->gradients[$n]['colorspace'] = $colorspace;$trans = false;$this->mpdf->gradients[$n]['is_mask'] = $is_mask;if ($is_mask) { $trans = true; }if (count($stops) == 1) { $stops[1] = $stops[0]; }if (!isset($stops[0]['offset'])) { $stops[0]['offset'] = 0; }if (!isset($stops[(count($stops)-1)]['offset'])) { $stops[(count($stops)-1)]['offset'] = 1; }// Fix stop-offsets set as absolute lengthsif ($type==2) {$axisx = ($coords[2]-$coords[0])*$usew;$axisy = ($coords[3]-$coords[1])*$useh;$axis_length = sqrt(pow($axisx,2) + pow($axisy,2));}else { $axis_length = $coords[4]*$usew; } // Absolute lengths are meaningless for an ellipse - Firefox uses Width as referencefor($i=0;$i<count($stops);$i++) {if (isset($stops[$i]['offset']) && preg_match('/([0-9.]+(px|em|ex|pc|pt|cm|mm|in))/i',$stops[$i]['offset'],$m)) {$tmp = $this->mpdf->ConvertSize($m[1],$this->mpdf->w,$this->mpdf->FontSize,false);$stops[$i]['offset'] = $tmp/$axis_length;}}if (isset($stops[0]['offset']) && $stops[0]['offset']>0) {$firststop = $stops[0];$firststop['offset'] = 0;array_unshift($stops, $firststop);}if (!$repeat && isset($stops[(count($stops)-1)]['offset']) && $stops[(count($stops)-1)]['offset']<1) {$endstop = $stops[(count($stops)-1)];$endstop['offset'] = 1;$stops[] = $endstop;}if ($stops[0]['offset'] > $stops[(count($stops)-1)]['offset']) {$stops[0]['offset'] = 0;$stops[(count($stops)-1)]['offset'] = 1;}for($i=0;$i<count($stops);$i++) {// mPDF 5.3.74if ($colorspace == 'CMYK') {$this->mpdf->gradients[$n]['stops'][$i]['col'] = sprintf('%.3F %.3F %.3F %.3F', (ord($stops[$i]['col']{1})/100), (ord($stops[$i]['col']{2})/100), (ord($stops[$i]['col']{3})/100), (ord($stops[$i]['col']{4})/100));}else if ($colorspace == 'Gray') {$this->mpdf->gradients[$n]['stops'][$i]['col'] = sprintf('%.3F', (ord($stops[$i]['col']{1})/255));}else {$this->mpdf->gradients[$n]['stops'][$i]['col'] = sprintf('%.3F %.3F %.3F', (ord($stops[$i]['col']{1})/255), (ord($stops[$i]['col']{2})/255), (ord($stops[$i]['col']{3})/255));}if (!isset($stops[$i]['opacity'])) { $stops[$i]['opacity'] = 1; }else if ($stops[$i]['opacity'] > 1 || $stops[$i]['opacity'] < 0) { $stops[$i]['opacity'] = 1; }else if ($stops[$i]['opacity'] < 1) {$trans = true;}$this->mpdf->gradients[$n]['stops'][$i]['opacity'] = $stops[$i]['opacity'];// OFFSETif ($i>0 && $i<(count($stops)-1)) {if (!isset($stops[$i]['offset']) || (isset($stops[$i+1]['offset']) && $stops[$i]['offset']>$stops[$i+1]['offset']) || $stops[$i]['offset']<$stops[$i-1]['offset']) {if (isset($stops[$i-1]['offset']) && isset($stops[$i+1]['offset'])) {$stops[$i]['offset'] = ($stops[$i-1]['offset']+$stops[$i+1]['offset'])/2;}else {for($j=($i+1);$j<count($stops);$j++) {if(isset($stops[$j]['offset'])) { break; }}$int = ($stops[$j]['offset'] - $stops[($i-1)]['offset'])/($j-$i+1);for($f=0;$f<($j-$i-1);$f++) {$stops[($i+$f)]['offset'] = $stops[($i+$f-1)]['offset'] + ($int);}}}}$this->mpdf->gradients[$n]['stops'][$i]['offset'] = $stops[$i]['offset'];$this->mpdf->gradients[$n]['stops'][$i]['offset'] = $stops[$i]['offset'];}if ($repeat) {$ns = count($this->mpdf->gradients[$n]['stops']);$offs = array();for($i=0;$i<$ns;$i++) {$offs[$i] = $this->mpdf->gradients[$n]['stops'][$i]['offset'];}$gp = 0;$inside=true;while($inside) {$gp++;for($i=0;$i<$ns;$i++) {$this->mpdf->gradients[$n]['stops'][(($ns*$gp)+$i)] = $this->mpdf->gradients[$n]['stops'][(($ns*($gp-1))+$i)];$tmp = $this->mpdf->gradients[$n]['stops'][(($ns*($gp-1))+($ns-1))]['offset']+$offs[$i] ;if ($tmp < 1) { $this->mpdf->gradients[$n]['stops'][(($ns*$gp)+$i)]['offset'] = $tmp; }else {$this->mpdf->gradients[$n]['stops'][(($ns*$gp)+$i)]['offset'] = 1;$inside = false;break(2);}}}}if ($trans) {$this->mpdf->gradients[$n]['trans'] = true;$s .= ' /TGS'.$n.' gs ';}if (!is_array($extend) || count($extend) <1) {$extend=array('true', 'true'); // These are supposed to be quoted - appear in PDF file as text}$this->mpdf->gradients[$n]['coords'] = $coords;$this->mpdf->gradients[$n]['extend'] = $extend;//paint the gradient$s .= '/Sh'.$n.' sh '."\n";//restore previous Graphic State$s .= ' Q '."\n";if ($return) { return $s; }else { $this->mpdf->_out($s); }}function parseMozGradient($bg) {// background[-image]: -moz-linear-gradient(left, #c7Fdde 20%, #FF0000 );// background[-image]: linear-gradient(left, #c7Fdde 20%, #FF0000 ); // CSS3if (preg_match('/repeating-/',$bg)) { $repeat = true; }else { $repeat = false; }if (preg_match('/linear-gradient\((.*)\)/',$bg,$m)) {$g = array();$g['type'] = 2;$g['colorspace'] = 'RGB';$g['extend'] = array('true','true');$v = trim($m[1]);// Change commas inside e.g. rgb(x,x,x)while(preg_match('/(\([^\)]*?),/',$v)) { $v = preg_replace('/(\([^\)]*?),/','\\1@',$v); }// Remove spaces inside e.g. rgb(x, x, x)while(preg_match('/(\([^\)]*?)[ ]/',$v)) { $v = preg_replace('/(\([^\)]*?)[ ]/','\\1',$v); }$bgr = preg_split('/\s*,\s*/',$v);for($i=0;$i<count($bgr);$i++) { $bgr[$i] = preg_replace('/@/', ',', $bgr[$i]); }// Is first part $bgr[0] a valid point/angle?$first = preg_split('/\s+/',trim($bgr[0]));if (preg_match('/(left|center|right|bottom|top|deg|grad|rad)/i',$bgr[0]) && !preg_match('/(<#|rgb|rgba|hsl|hsla)/i',$bgr[0])) {$startStops = 1;}else if (trim($first[(count($first)-1)]) === "0") {$startStops = 1;}else {$check = $this->mpdf->ConvertColor($first[0]);if ($check) $startStops = 0;else $startStops = 1;}// first part a valid point/angle?if ($startStops == 1) { // default values// [<point> || <angle>,] = [<% em px left center right bottom top> || <deg grad rad 0>,]if (preg_match('/([\-]*[0-9\.]+)(deg|grad|rad)/i',$bgr[0],$m)) {$angle = $m[1] + 0;if (strtolower($m[2])=='deg') { $angle = $angle; }else if (strtolower($m[2])=='grad') { $angle *= (360/400); }else if (strtolower($m[2])=='rad') { $angle = rad2deg($angle); }while($angle < 0) { $angle += 360; }$angle = ($angle % 360);}else if (trim($first[(count($first)-1)]) === "0") { $angle = 0; }if (preg_match('/left/i',$bgr[0])) { $startx = 0; }else if (preg_match('/right/i',$bgr[0])) { $startx = 1; }if (preg_match('/top/i',$bgr[0])) { $starty = 1; }else if (preg_match('/bottom/i',$bgr[0])) { $starty = 0; }// Check for %? ?% or %%if (preg_match('/(\d+)[%]/i',$first[0],$m)) { $startx = $m[1]/100; }else if (!isset($startx) && preg_match('/([0-9.]+(px|em|ex|pc|pt|cm|mm|in))/i',$first[0],$m)) {$tmp = $this->mpdf->ConvertSize($m[1],$this->mpdf->w,$this->mpdf->FontSize,false);if ($tmp) { $startx = $m[1]; }}if (isset($first[1]) && preg_match('/(\d+)[%]/i',$first[1],$m)) { $starty = 1 - ($m[1]/100); }else if (!isset($starty) && preg_match('/([0-9.]+(px|em|ex|pc|pt|cm|mm|in))/i',$first[1],$m)) {$tmp = $this->mpdf->ConvertSize($m[1],$this->mpdf->w,$this->mpdf->FontSize,false);if ($tmp) { $starty = $m[1]; }}if (isset($startx) && !isset($starty)) { $starty = 0.5; }if (!isset($startx) && isset($starty)) { $startx = 0.5; }}// If neither a <point> or <angle> is specified, i.e. the entire function consists of only <stop> values, the gradient axis starts from the top of the box and runs vertically downwards, ending at the bottom of the box.else { // default values T2B$starty = 1; $startx = 0.5;$endy = 0; $endx = 0.5;}$coords = array();if (!isset($startx)) { $startx = false; }if (!isset($starty)) { $starty = false; }if (!isset($endx)) { $endx = false; }if (!isset($endy)) { $endy = false; }if (!isset($angle)) { $angle = false; }$g['coords'] = array($startx ,$starty ,$endx ,$endy, $angle, $repeat );$g['stops'] = array();for($i=$startStops;$i<count($bgr);$i++) {$stop = array();// parse stops$el = preg_split('/\s+/',trim($bgr[$i]));// mPDF 5.3.74$col = $this->mpdf->ConvertColor($el[0]);if ($col) { $stop['col'] = $col; }else { $stop['col'] = $col = $this->mpdf->ConvertColor(255); }if ($col{0}==1) $g['colorspace'] = 'Gray';else if ($col{0}==4 || $col{0}==6) $g['colorspace'] = 'CMYK';if ($col{0}==5) { $stop['opacity'] = ord($col{4})/100; } // transparency from rgba()else if ($col{0}==6) { $stop['opacity'] = ord($col{5})/100; } // transparency from cmyka()else if ($col{0}==1 && $col{2}==1) { $stop['opacity'] = ord($col{3})/100; } // transparency converted from rgba or cmyka()if (isset($el[1]) && preg_match('/(\d+)[%]/',$el[1],$m)) {$stop['offset'] = $m[1]/100;if ($stop['offset']>1) { unset($stop['offset']); }}else if (isset($el[1]) && preg_match('/([0-9.]+(px|em|ex|pc|pt|cm|mm|in))/i',$el[1],$m)) {$tmp = $this->mpdf->ConvertSize($m[1],$this->mpdf->w,$this->mpdf->FontSize,false);if ($tmp) { $stop['offset'] = $m[1]; }}$g['stops'][] = $stop;}if (count($g['stops'] )) { return $g; }}else if (preg_match('/radial-gradient\((.*)\)/',$bg,$m)) {$g = array();$g['type'] = 3;$g['colorspace'] = 'RGB';$g['extend'] = array('true','true');$v = trim($m[1]);// Change commas inside e.g. rgb(x,x,x)while(preg_match('/(\([^\)]*?),/',$v)) { $v = preg_replace('/(\([^\)]*?),/','\\1@',$v); }// Remove spaces inside e.g. rgb(x, x, x)while(preg_match('/(\([^\)]*?)[ ]/',$v)) { $v = preg_replace('/(\([^\)]*?)[ ]/','\\1',$v); }$bgr = preg_split('/\s*,\s*/',$v);for($i=0;$i<count($bgr);$i++) { $bgr[$i] = preg_replace('/@/', ',', $bgr[$i]); }// Is first part $bgr[0] a valid point/angle?$startStops = 0;$pos_angle = false;$shape_size = false;$first = preg_split('/\s+/',trim($bgr[0]));$checkCol = $this->mpdf->ConvertColor($first[0]);if (preg_match('/(left|center|right|bottom|top|deg|grad|rad)/i',$bgr[0]) && !preg_match('/(<#|rgb|rgba|hsl|hsla)/i',$bgr[0])) {$startStops=1;$pos_angle = $bgr[0];}else if (trim($first[(count($first)-1)]) === "0") {$startStops=1;$pos_angle = $bgr[0];}else if (preg_match('/(circle|ellipse|closest-side|closest-corner|farthest-side|farthest-corner|contain|cover)/i',$bgr[0])) {$startStops=1;$shape_size = $bgr[0];}else if (!$checkCol) {$startStops=1;$pos_angle = $bgr[0];}if (preg_match('/(circle|ellipse|closest-side|closest-corner|farthest-side|farthest-corner|contain|cover)/i',$bgr[1])) {$startStops=2;$shape_size = $bgr[1];}// If valid point/angle?if ($pos_angle) { // default values// [<point> || <angle>,] = [<% em px left center right bottom top> || <deg grad rad 0>,]if (preg_match('/left/i',$pos_angle)) { $startx = 0; }else if (preg_match('/right/i',$pos_angle)) { $startx = 1; }if (preg_match('/top/i',$pos_angle)) { $starty = 1; }else if (preg_match('/bottom/i',$pos_angle)) { $starty = 0; }// Check for %? ?% or %%if (preg_match('/(\d+)[%]/i',$first[0],$m)) { $startx = $m[1]/100; }else if (!isset($startx) && preg_match('/([0-9.]+(px|em|ex|pc|pt|cm|mm|in))/i',$first[0],$m)) {$tmp = $this->mpdf->ConvertSize($m[1],$this->mpdf->w,$this->mpdf->FontSize,false);if ($tmp) { $startx = $m[1]; }}if (isset($first[1]) && preg_match('/(\d+)[%]/i',$first[1],$m)) { $starty = 1 - ($m[1]/100); }else if (!isset($starty) && preg_match('/([0-9.]+(px|em|ex|pc|pt|cm|mm|in))/i',$first[1],$m)) {$tmp = $this->mpdf->ConvertSize($m[1],$this->mpdf->w,$this->mpdf->FontSize,false);if ($tmp) { $starty = $m[1]; }}/*// ?? Angle has no effect in radial gradient (does not exist in CSS3 spec.)if (preg_match('/([\-]*[0-9\.]+)(deg|grad|rad)/i',$pos_angle,$m)) {$angle = $m[1] + 0;if (strtolower($m[2])=='deg') { $angle = $angle; }else if (strtolower($m[2])=='grad') { $angle *= (360/400); }else if (strtolower($m[2])=='rad') { $angle = rad2deg($angle); }while($angle < 0) { $angle += 360; }$angle = ($angle % 360);}*/if (!isset($starty)) { $starty = 0.5; }if (!isset($startx)) { $startx = 0.5; }}// If neither a <point> or <angle> is specified, i.e. the entire function consists of only <stop> values, the gradient axis starts from the top of the box and runs vertically downwards, ending at the bottom of the box.else { // default values Center$starty = 0.5; $startx = 0.5;$endy = 0.5; $endx = 0.5;}// If valid shape/size?$shape = 'ellipse'; // default$size = 'farthest-corner'; // defaultif ($shape_size) { // default valuesif (preg_match('/(circle|ellipse)/i',$shape_size, $m)) {$shape = $m[1];}if (preg_match('/(closest-side|closest-corner|farthest-side|farthest-corner|contain|cover)/i',$shape_size, $m)) {$size = $m[1];if ($size=='contain') { $size = 'closest-side'; }else if ($size=='cover') { $size = 'farthest-corner'; }}}$coords = array();if (!isset($startx)) { $startx = false; }if (!isset($starty)) { $starty = false; }if (!isset($endx)) { $endx = false; }if (!isset($endy)) { $endy = false; }if (!isset($radius)) { $radius = false; }if (!isset($angle)) { $angle = 0; }$g['coords'] = array($startx ,$starty ,$endx ,$endy, $radius, $angle, $shape, $size, $repeat );$g['stops'] = array();for($i=$startStops;$i<count($bgr);$i++) {$stop = array();// parse stops$el = preg_split('/\s+/',trim($bgr[$i]));// mPDF 5.3.74$col = $this->mpdf->ConvertColor($el[0]);if ($col) { $stop['col'] = $col; }else { $stop['col'] = $col = $this->mpdf->ConvertColor(255); }if ($col{0}==1) $g['colorspace'] = 'Gray';else if ($col{0}==4 || $col{0}==6) $g['colorspace'] = 'CMYK';if ($col{0}==5) { $stop['opacity'] = ord($col{4})/100; } // transparency from rgba()else if ($col{0}==6) { $stop['opacity'] = ord($col{5})/100; } // transparency from cmyka()else if ($col{0}==1 && $col{2}==1) { $stop['opacity'] = ord($col{3})/100; } // transparency converted from rgba or cmyka()if (isset($el[1]) && preg_match('/(\d+)[%]/',$el[1],$m)) {$stop['offset'] = $m[1]/100;if ($stop['offset']>1) { unset($stop['offset']); }}else if (isset($el[1]) && preg_match('/([0-9.]+(px|em|ex|pc|pt|cm|mm|in))/i',$el[1],$m)) {$tmp = $this->mpdf->ConvertSize($m[1],$this->mpdf->w,$this->mpdf->FontSize,false);$stop['offset'] = $el[1];}$g['stops'][] = $stop;}if (count($g['stops'] )) { return $g; }}return array();}function parseBackgroundGradient($bg) {// background-gradient: linear #00FFFF #FFFF00 0 0.5 1 0.5; or// background-gradient: radial #00FFFF #FFFF00 0.5 0.5 1 1 1.2;$v = trim($bg);$bgr = preg_split('/\s+/',$v);$g = array();if (count($bgr)> 6) {if (strtoupper(substr($bgr[0],0,1)) == 'L' && count($bgr)==7) { // linear$g['type'] = 2;//$coords = array(0,0,1,1 ); // 0 0 1 0 or 0 1 1 1 is L 2 R; 1,1,0,1 is R2L; 1,1,1,0 is T2B; 1,0,1,1 is B2T// Linear: $coords - array of the form (x1, y1, x2, y2) which defines the gradient vector (see linear_gradient_coords.jpg).// The default value is from left to right (x1=0, y1=0, x2=1, y2=0).$g['coords'] = array($bgr[3], $bgr[4], $bgr[5], $bgr[6]);}else if (count($bgr)==8) { // radial$g['type'] = 3;// Radial: $coords - array of the form (fx, fy, cx, cy, r) where (fx, fy) is the starting point of the gradient with color1,// (cx, cy) is the center of the circle with color2, and r is the radius of the circle (see radial_gradient_coords.jpg).// (fx, fy) should be inside the circle, otherwise some areas will not be defined$g['coords'] = array($bgr[3], $bgr[4], $bgr[5], $bgr[6], $bgr[7]);}$g['colorspace'] = 'RGB';// mPDF 5.3.74$cor = $this->mpdf->ConvertColor($bgr[1]);if ($cor{0}==1) $g['colorspace'] = 'Gray';else if ($cor{0}==4 || $cor{0}==6) $g['colorspace'] = 'CMYK';if ($cor) { $g['col'] = $cor; }else { $g['col'] = $this->mpdf->ConvertColor(255); }$cor = $this->mpdf->ConvertColor($bgr[2]);if ($cor) { $g['col2'] = $cor; }else { $g['col2'] = $this->mpdf->ConvertColor(255); }$g['extend'] = array('true','true');$g['stops'] = array(array('col'=>$g['col'], 'opacity'=>1, 'offset'=>0), array('col'=>$g['col2'], 'opacity'=>1, 'offset'=>1));return $g;}return false;}}?>