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mpdf = $mpdf; $this->sizeConverter = $sizeConverter; $this->colorConverter = $colorConverter; $this->writer = $writer; } // mPDF 5.3.A1 public function CoonsPatchMesh($x, $y, $w, $h, $patch_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 ', $x * Mpdf::SCALE, ($this->mpdf->h - $y) * Mpdf::SCALE, $w * Mpdf::SCALE, -$h * Mpdf::SCALE); $s.=sprintf(' %.3F 0 0 %.3F %.3F %.3F cm ', $w * Mpdf::SCALE, $h * Mpdf::SCALE, $x * Mpdf::SCALE, ($this->mpdf->h - ($y + $h)) * Mpdf::SCALE); $n = count($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 bit for ($j = 0; $j < count($patch_array[$i]['points']); $j++) { // each point as 16 bit if (($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(round($patch_array[$i]['points'][$j]) % 256)); } for ($j = 0; $j < count($patch_array[$i]['colors']); $j++) { //each color component as 8 bit if ($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) { $trans = true; } } elseif ($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) { $trans = true; } } elseif ($colspace === 'Gray') { $this->mpdf->gradients[$n]['stream'] .= $patch_array[$i]['colors'][$j][1]; if ($patch_array[$i]['colors'][$j][2] == 1) { $trans = true; } // transparency converted from rgba or cmyka() } } } // TRANSPARENCY if ($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(round($patch_array[$i]['points'][$j]) % 256)); } for ($j = 0; $j < count($patch_array[$i]['colors']); $j++) { // each color component as 8 bit // OPACITY if ($colspace === 'RGB') { $this->mpdf->gradients[$n]['stream_trans'] .= chr((int) (ord($patch_array[$i]['colors'][$j][4]) * 2.55)); } elseif ($colspace === 'CMYK') { $this->mpdf->gradients[$n]['stream_trans'] .= chr((int) (ord($patch_array[$i]['colors'][$j][5]) * 2.55)); } elseif ($colspace === 'Gray') { $this->mpdf->gradients[$n]['stream_trans'] .= chr((int) (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; } $this->writer->write($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]) public function Gradient($x, $y, $w, $h, $type, $stops = [], $colorspace = 'RGB', $coords = '', $extend = '', $return = false, $is_mask = false) { if ($type && stripos($type, 'L') === 0) { $type = self::TYPE_LINEAR; } elseif ($type && stripos($type, 'R') === 0) { $type = self::TYPE_RADIAL; } if ($colorspace !== 'CMYK' && $colorspace !== 'Gray') { $colorspace = 'RGB'; } $bboxw = $w; $bboxh = $h; $usex = $x; $usey = $y; $usew = $bboxw; $useh = $bboxh; if ($type < 1) { $type = self::TYPE_LINEAR; } if ($coords[0] !== false && preg_match('/([0-9.]+(px|em|ex|pc|pt|cm|mm|in))/i', $coords[0], $m)) { $tmp = $this->sizeConverter->convert($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 = $this->sizeConverter->convert($m[1], $this->mpdf->w, $this->mpdf->FontSize, false); if ($tmp) { $coords[1] = 1 - ($tmp / $h); } } if ($type == self::TYPE_LINEAR) { $angle = (isset($coords[4]) ? $coords[4] : false); $repeat = (isset($coords[5]) ? $coords[5] : false); // ALL POINTS SET (default for custom mPDF linear gradient) - no -moz if ($coords[0] !== false && $coords[1] !== false && $coords[2] !== false && $coords[3] !== false) { // do nothing - coords used as they are } elseif ($angle !== false && $coords[0] !== false && $coords[1] !== false && $coords[2] === false && $coords[3] === false) { // If both a and are defined, the gradient axis starts from the point and runs along the angle. The end point is // defined as before - in this case start points may not be in corners, and axis may not correctly fall in the right quadrant. // NO end points (Angle defined & Start points) if ($angle == 0 || $angle == 360) { $coords[3] = $coords[1]; if ($coords[0] == 1) { $coords[2] = 2; } else { $coords[2] = 1; } } elseif ($angle == 90) { $coords[2] = $coords[0]; $coords[3] = 1; if ($coords[1] == 1) { $coords[3] = 2; } else { $coords[3] = 1; } } elseif ($angle == 180) { if ($coords[4] == 0) { $coords[2] = -1; } else { $coords[2] = 0; } $coords[3] = $coords[1]; } elseif ($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 - $ty; } elseif ($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 - $ty; } elseif ($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] = $ty; } } } elseif ($angle !== false && $coords[0] === false && $coords[1] === false) { // -moz If the first parameter is only an , the gradient axis starts from the box's corner that would ensure the // axis goes through the box. The axis runs along the specified angle. The end point of the axis is defined such that the // farthest corner of the box from the starting point is perpendicular to the gradient axis at that point. // NO end points or Start points (Angle defined) if ($angle == 0 || $angle == 360) { $coords[0] = 0; $coords[1] = 0; $coords[2] = 1; $coords[3] = 0; } elseif ($angle == 90) { $coords[0] = 0; $coords[1] = 0; $coords[2] = 0; $coords[3] = 1; } elseif ($angle == 180) { $coords[0] = 1; $coords[1] = 0; $coords[2] = 0; $coords[3] = 0; } elseif ($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)); $endy = 1; } } elseif ($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 - $angle)); } } elseif ($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] = $y1; } elseif ($angle <= 180) { $coords[2] = 1 - $x1; $coords[3] = $y1; } elseif ($angle <= 270) { $coords[2] = 1 - $x1; $coords[3] = 1 - $y1; } else { $coords[2] = $x1; $coords[3] = 1 - $y1; } } } elseif ((!isset($angle) || $angle === false) && $coords[0] !== false && $coords[1] !== false) { // -moz If the first parameter to the gradient function is only a , 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) $coords[2] = 1 - $coords[0]; $coords[3] = 1 - $coords[1]; $angle = rad2deg(atan2($coords[3] - $coords[1], $coords[2] - $coords[0])); if ($angle < 0) { $angle += 360; } elseif ($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; } } } else { // default values T2B // -moz If neither a or is specified, i.e. the entire function consists of only values, the gradient // axis starts from the top of the box and runs vertically downwards, ending at the bottom of the box. // All values are set in parseMozGradient - so won't appear here $coords = [0, 0, 1, 0]; // default for original linear gradient (L2R) } } elseif ($type == self::TYPE_RADIAL) { $radius = (isset($coords[4]) ? $coords[4] : false); $shape = (isset($coords[6]) ? $coords[6] : false); $size = (isset($coords[7]) ? $coords[7] : false); $repeat = (isset($coords[8]) ? $coords[8] : false); // ALL POINTS AND RADIUS SET (default for custom mPDF radial gradient) - no -moz if ($coords[0] !== false && $coords[1] !== false && $coords[2] !== false && $coords[3] !== false && $coords[4] !== false) { // If a is defined // do nothing - coords used as they are } elseif ($shape !== false && $size !== false) { if ($coords[2] == false) { $coords[2] = $coords[0]; } if ($coords[3] == false) { $coords[3] = $coords[1]; } // ELLIPSE if ($shape === 'ellipse') { $corner1 = sqrt(($coords[0] ** 2) + ($coords[1] ** 2)); $corner2 = sqrt(($coords[0] ** 2) + ((1 - $coords[1]) ** 2)); $corner3 = sqrt(((1 - $coords[0]) ** 2) + ($coords[1] ** 2)); $corner4 = sqrt(((1 - $coords[0]) ** 2) + ((1 - $coords[1]) ** 2)); if ($size === 'closest-side') { $radius = min($coords[0], $coords[1], 1 - $coords[0], 1 - $coords[1]); } elseif ($size === 'closest-corner') { $radius = min($corner1, $corner2, $corner3, $corner4); } elseif ($size === 'farthest-side') { $radius = max($coords[0], $coords[1], 1 - $coords[0], 1 - $coords[1]); } else { $radius = max($corner1, $corner2, $corner3, $corner4); } // farthest corner (default) } elseif ($shape === 'circle') { if ($w >= $h) { $coords[1] = $coords[3] = ($coords[1] * $h / $w); $corner1 = sqrt(($coords[0] ** 2) + ($coords[1] ** 2)); $corner2 = sqrt(($coords[0] ** 2) + ((($h / $w) - $coords[1]) ** 2)); $corner3 = sqrt(((1 - $coords[0]) ** 2) + ($coords[1] ** 2)); $corner4 = sqrt(((1 - $coords[0]) ** 2) + ((($h / $w) - $coords[1]) ** 2)); if ($size === 'closest-side') { $radius = min($coords[0], $coords[1], 1 - $coords[0], ($h / $w) - $coords[1]); } elseif ($size === 'closest-corner') { $radius = min($corner1, $corner2, $corner3, $corner4); } elseif ($size === 'farthest-side') { $radius = max($coords[0], $coords[1], 1 - $coords[0], ($h / $w) - $coords[1]); } elseif ($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); $corner1 = sqrt(($coords[0] ** 2) + ($coords[1] ** 2)); $corner2 = sqrt(($coords[0] ** 2) + ((1 - $coords[1]) ** 2)); $corner3 = sqrt(((($w / $h) - $coords[0]) ** 2) + ($coords[1] ** 2)); $corner4 = sqrt(((($w / $h) - $coords[0]) ** 2) + ((1 - $coords[1]) ** 2)); if ($size === 'closest-side') { $radius = min($coords[0], $coords[1], ($w / $h) - $coords[0], 1 - $coords[1]); } elseif ($size === 'closest-corner') { $radius = min($corner1, $corner2, $corner3, $corner4); } elseif ($size === 'farthest-side') { $radius = max($coords[0], $coords[1], ($w / $h) - $coords[0], 1 - $coords[1]); } elseif ($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; } else { // -moz If entire function consists of only values // All values are set in parseMozGradient - so won't appear here $coords = [0.5, 0.5, 0.5, 0.5]; // default for radial gradient (centred) } } $s = ' q'; $s .= sprintf(' %.3F %.3F %.3F %.3F re W n', $x * Mpdf::SCALE, ($this->mpdf->h - $y) * Mpdf::SCALE, $w * Mpdf::SCALE, -$h * Mpdf::SCALE) . "\n"; $s .= sprintf(' %.3F 0 0 %.3F %.3F %.3F cm', $usew * Mpdf::SCALE, $useh * Mpdf::SCALE, $usex * Mpdf::SCALE, ($this->mpdf->h - ($usey + $useh)) * Mpdf::SCALE) . "\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 lengths if ($type == self::TYPE_LINEAR) { $axisx = ($coords[2] - $coords[0]) * $usew; $axisy = ($coords[3] - $coords[1]) * $useh; $axis_length = sqrt(($axisx ** 2) + ($axisy ** 2)); } else { $axis_length = $coords[4] * $usew; } // Absolute lengths are meaningless for an ellipse - Firefox uses Width as reference for ($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 = $this->sizeConverter->convert($m[1], $this->mpdf->w, $this->mpdf->FontSize, false); $stops[$i]['offset'] = $axis_length ? $tmp / $axis_length : 0; } } if (isset($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); $i++) { // mPDF 5.3.74 if ($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[$i]['col'][4]) / 100); } elseif ($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; } elseif ($stops[$i]['opacity'] > 1 || $stops[$i]['opacity'] < 0) { $stops[$i]['opacity'] = 1; } elseif ($stops[$i]['opacity'] < 1) { $trans = true; } $this->mpdf->gradients[$n]['stops'][$i]['opacity'] = $stops[$i]['opacity']; // OFFSET if ($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']; } if ($repeat) { $ns = count($this->mpdf->gradients[$n]['stops']); $offs = []; for ($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; $inside = false; break; } } } } if ($trans) { $this->mpdf->gradients[$n]['trans'] = true; $s .= ' /TGS' . $n . ' gs '; } if (!is_array($extend) || count($extend) < 1) { $extend = ['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; } $this->writer->write($s); } private function parseMozLinearGradient($m, $repeat) { $g = []; $g['type'] = self::TYPE_LINEAR; $g['colorspace'] = 'RGB'; $g['extend'] = ['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])) { $startStops = 1; } elseif (trim($first[count($first) - 1]) === '0') { $startStops = 1; } else { $check = $this->colorConverter->convert($first[0], $this->mpdf->PDFAXwarnings); $startStops = 1; if ($check) { $startStops = 0; } } // first part a valid point/angle? if ($startStops === 1) { // default values // [ || ,] = [<% em px left center right bottom top> || ,] if (preg_match('/([\-]*[0-9\.]+)(deg|grad|rad)/i', $bgr[0], $m)) { $angle = $m[1] + 0; if (strtolower($m[2]) === 'grad') { $angle *= (360 / 400); } elseif (strtolower($m[2]) === 'rad') { $angle = rad2deg($angle); } while ($angle < 0) { $angle += 360; } $angle %= 360; } elseif (trim($first[count($first) - 1]) === '0') { $angle = 0; } if (stripos($bgr[0], 'left') !== false) { $startx = 1; } elseif (stripos($bgr[0], 'right') !== false) { $startx = 0; } if (stripos($bgr[0], 'top') !== false) { $starty = 1; } elseif (stripos($bgr[0], 'bottom') !== false) { $starty = 0; } // Check for %? ?% or %% if (preg_match('/(\d+)[%]/i', $first[0], $m)) { $startx = $m[1] / 100; } elseif (!isset($startx) && preg_match('/([0-9.]+(px|em|ex|pc|pt|cm|mm|in))/i', $first[0], $m)) { $tmp = $this->sizeConverter->convert($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); } elseif (!isset($starty) && isset($first[1]) && preg_match('/([0-9.]+(px|em|ex|pc|pt|cm|mm|in))/i', $first[1], $m)) { $tmp = $this->sizeConverter->convert($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; } } else { // If neither a or is specified, i.e. the entire function consists of only values, // the gradient axis starts from the top of the box and runs vertically downwards, ending at the bottom of // the box. $starty = 1; $startx = 0.5; $endy = 0; $endx = 0.5; } if (!isset($startx)) { $startx = false; } if (!isset($starty)) { $starty = false; } if (!isset($endx)) { $endx = false; } if (!isset($endy)) { $endy = false; } if (!isset($angle)) { $angle = false; } $g['coords'] = [$startx, $starty, $endx, $endy, $angle, $repeat]; $g['stops'] = []; for ($i = $startStops; $i < count($bgr); $i++) { // parse stops $el = preg_split('/\s+/', trim($bgr[$i])); // mPDF 5.3.74 $col = $this->colorConverter->convert($el[0], $this->mpdf->PDFAXwarnings); if (!$col) { $col = $this->colorConverter->convert(255, $this->mpdf->PDFAXwarnings); } if ($col[0] == 1) { $g['colorspace'] = 'Gray'; } elseif ($col[0] == 4 || $col[0] == 6) { $g['colorspace'] = 'CMYK'; } $g['stops'][] = $this->getStop($col, $el, true); } return $g; } private function parseMozRadialGradient($m, $repeat) { $g = []; $g['type'] = self::TYPE_RADIAL; $g['colorspace'] = 'RGB'; $g['extend'] = ['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 = $this->colorConverter->convert($first[0], $this->mpdf->PDFAXwarnings); 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 = $bgr[0]; } elseif (trim($first[count($first) - 1]) === '0') { $startStops = 1; $pos_angle = $bgr[0]; } elseif (preg_match('/(circle|ellipse|closest-side|closest-corner|farthest-side|farthest-corner|contain|cover)/i', $bgr[0])) { $startStops = 1; $shape_size = $bgr[0]; } elseif (!$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 // [ || ,] = [<% em px left center right bottom top> || ,] if (stripos($pos_angle, 'left') !== false) { $startx = 0; } elseif (stripos($pos_angle, 'right') !== false) { $startx = 1; } if (stripos($pos_angle, 'top') !== false) { $starty = 1; } elseif (stripos($pos_angle, 'bottom') !== false) { $starty = 0; } // Check for %? ?% or %% if (preg_match('/(\d+)[%]/i', $first[0], $m)) { $startx = $m[1] / 100; } elseif (!isset($startx) && preg_match('/([0-9.]+(px|em|ex|pc|pt|cm|mm|in))/i', $first[0], $m)) { $tmp = $this->sizeConverter->convert($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); } elseif (!isset($starty) && isset($first[1]) && preg_match('/([0-9.]+(px|em|ex|pc|pt|cm|mm|in))/i', $first[1], $m)) { $tmp = $this->sizeConverter->convert($m[1], $this->mpdf->w, $this->mpdf->FontSize, false); if ($tmp) { $starty = $m[1]; } } if (!isset($starty)) { $starty = 0.5; } if (!isset($startx)) { $startx = 0.5; } } else { // If neither a or is specified, i.e. the entire function consists of only values, // the gradient axis starts from the top of the box and runs vertically downwards, ending at the bottom of // the box. default values Center $starty = 0.5; $startx = 0.5; $endy = 0.5; $endx = 0.5; } // If valid shape/size? $shape = 'ellipse'; // default $size = 'farthest-corner'; // default if ($shape_size) { // default values if (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') { $size = 'closest-side'; } elseif ($size === 'cover') { $size = 'farthest-corner'; } } } if (!isset($startx)) { $startx = false; } if (!isset($starty)) { $starty = false; } if (!isset($endx)) { $endx = false; } if (!isset($endy)) { $endy = false; } $radius = false; $angle = 0; $g['coords'] = [$startx, $starty, $endx, $endy, $radius, $angle, $shape, $size, $repeat]; $g['stops'] = []; for ($i = $startStops; $i < count($bgr); $i++) { // parse stops $el = preg_split('/\s+/', trim($bgr[$i])); // mPDF 5.3.74 $col = $this->colorConverter->convert($el[0], $this->mpdf->PDFAXwarnings); if (!$col) { $col = $this->colorConverter->convert(255, $this->mpdf->PDFAXwarnings); } if ($col[0] == 1) { $g['colorspace'] = 'Gray'; } elseif ($col[0] == 4 || $col[0] == 6) { $g['colorspace'] = 'CMYK'; } $g['stops'][] = $this->getStop($col, $el); } return $g; } private function getStop($col, $el, $convertOffset = false) { $stop = [ 'col' => $col, ]; if ($col[0] == 5) { // transparency from rgba() $stop['opacity'] = ord($col[4]) / 100; } elseif ($col[0] == 6) { // transparency from cmyka() $stop['opacity'] = ord($col[5]) / 100; } elseif ($col[0] == 1 && $col[2] == 1) { // transparency converted from rgba or cmyka() $stop['opacity'] = ord($col[3]) / 100; } if (isset($el[1])) { if (preg_match('/(\d+)[%]/', $el[1], $m)) { $stop['offset'] = $m[1] / 100; if ($stop['offset'] > 1) { unset($stop['offset']); } } elseif (preg_match('/([0-9.]+(px|em|ex|pc|pt|cm|mm|in))/i', $el[1], $m)) { if ($convertOffset) { $tmp = $this->sizeConverter->convert($m[1], $this->mpdf->w, $this->mpdf->FontSize, false); if ($tmp) { $stop['offset'] = $m[1]; } } else { $stop['offset'] = $el[1]; } } } return $stop; } public function parseMozGradient($bg) { // background[-image]: -moz-linear-gradient(left, #c7Fdde 20%, #FF0000 ); // background[-image]: linear-gradient(left, #c7Fdde 20%, #FF0000 ); // CSS3 $repeat = strpos($bg, 'repeating-') !== false; if (preg_match('/linear-gradient\((.*)\)/', $bg, $m)) { $g = $this->parseMozLinearGradient($m, $repeat); if (count($g['stops'])) { return $g; } } elseif (preg_match('/radial-gradient\((.*)\)/', $bg, $m)) { $g = $this->parseMozRadialGradient($m, $repeat); if (count($g['stops'])) { return $g; } } return []; } public function parseBackgroundGradient($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); $count_bgr = count($bgr); $g = []; if ($count_bgr > 6) { if (stripos($bgr[0], 'L') === 0 && $count_bgr === 7) { // linear $g['type'] = self::TYPE_LINEAR; //$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). $g['coords'] = [$bgr[3], $bgr[4], $bgr[5], $bgr[6]]; } elseif ($count_bgr === 8) { // radial $g['type'] = self::TYPE_RADIAL; // 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 $g['coords'] = [$bgr[3], $bgr[4], $bgr[5], $bgr[6], $bgr[7]]; } $g['colorspace'] = 'RGB'; // mPDF 5.3.74 $cor = $this->colorConverter->convert($bgr[1], $this->mpdf->PDFAXwarnings); if ($cor[0] == 1) { $g['colorspace'] = 'Gray'; } elseif ($cor[0] == 4 || $cor[0] == 6) { $g['colorspace'] = 'CMYK'; } if ($cor) { $g['col'] = $cor; } else { $g['col'] = $this->colorConverter->convert(255, $this->mpdf->PDFAXwarnings); } $cor = $this->colorConverter->convert($bgr[2], $this->mpdf->PDFAXwarnings); if ($cor) { $g['col2'] = $cor; } else { $g['col2'] = $this->colorConverter->convert(255, $this->mpdf->PDFAXwarnings); } $g['extend'] = ['true', 'true']; $g['stops'] = [['col' => $g['col'], 'opacity' => 1, 'offset' => 0], ['col' => $g['col2'], 'opacity' => 1, 'offset' => 1]]; return $g; } return false; } }