| 1 |
<?php |
| 2 |
|
| 3 |
class wmf { |
| 4 |
|
| 5 |
var $mpdf = null; |
| 6 |
var $gdiObjectArray; |
| 7 |
|
| 8 |
function wmf(&$mpdf) { |
| 9 |
$this->mpdf = $mpdf; |
| 10 |
} |
| 11 |
|
| 12 |
|
| 13 |
function _getWMFimage($data) { |
| 14 |
$k = _MPDFK; |
| 15 |
|
| 16 |
$this->gdiObjectArray = array(); |
| 17 |
$a=unpack('stest',"\1\0"); |
| 18 |
if ($a['test']!=1) |
| 19 |
return array(0, 'Error parsing WMF image - Big-endian architecture not supported'); |
| 20 |
// check for Aldus placeable metafile header |
| 21 |
$key = unpack('Lmagic', substr($data, 0, 4)); |
| 22 |
$p = 18; // WMF header |
| 23 |
if ($key['magic'] == (int)0x9AC6CDD7) { $p +=22; } // Aldus header |
| 24 |
// define some state variables |
| 25 |
$wo=null; // window origin |
| 26 |
$we=null; // window extent |
| 27 |
$polyFillMode = 0; |
| 28 |
$nullPen = false; |
| 29 |
$nullBrush = false; |
| 30 |
$endRecord = false; |
| 31 |
$wmfdata = ''; |
| 32 |
while ($p < strlen($data) && !$endRecord) { |
| 33 |
$recordInfo = unpack('Lsize/Sfunc', substr($data, $p, 6)); $p += 6; |
| 34 |
// size of record given in WORDs (= 2 bytes) |
| 35 |
$size = $recordInfo['size']; |
| 36 |
// func is number of GDI function |
| 37 |
$func = $recordInfo['func']; |
| 38 |
if ($size > 3) { |
| 39 |
$parms = substr($data, $p, 2*($size-3)); $p += 2*($size-3); |
| 40 |
} |
| 41 |
switch ($func) { |
| 42 |
case 0x020b: // SetWindowOrg |
| 43 |
// do not allow window origin to be changed |
| 44 |
// after drawing has begun |
| 45 |
if (!$wmfdata) |
| 46 |
$wo = array_reverse(unpack('s2', $parms)); |
| 47 |
break; |
| 48 |
case 0x020c: // SetWindowExt |
| 49 |
// do not allow window extent to be changed |
| 50 |
// after drawing has begun |
| 51 |
if (!$wmfdata) |
| 52 |
$we = array_reverse(unpack('s2', $parms)); |
| 53 |
break; |
| 54 |
case 0x02fc: // CreateBrushIndirect |
| 55 |
$brush = unpack('sstyle/Cr/Cg/Cb/Ca/Shatch', $parms); |
| 56 |
$brush['type'] = 'B'; |
| 57 |
$this->_AddGDIObject($brush); |
| 58 |
break; |
| 59 |
case 0x02fa: // CreatePenIndirect |
| 60 |
$pen = unpack('Sstyle/swidth/sdummy/Cr/Cg/Cb/Ca', $parms); |
| 61 |
// convert width from twips to user unit |
| 62 |
$pen['width'] /= (20 * $k); |
| 63 |
$pen['type'] = 'P'; |
| 64 |
$this->_AddGDIObject($pen); |
| 65 |
break; |
| 66 |
|
| 67 |
// MUST create other GDI objects even if we don't handle them |
| 68 |
case 0x06fe: // CreateBitmap |
| 69 |
case 0x02fd: // CreateBitmapIndirect |
| 70 |
case 0x00f8: // CreateBrush |
| 71 |
case 0x02fb: // CreateFontIndirect |
| 72 |
case 0x00f7: // CreatePalette |
| 73 |
case 0x01f9: // CreatePatternBrush |
| 74 |
case 0x06ff: // CreateRegion |
| 75 |
case 0x0142: // DibCreatePatternBrush |
| 76 |
$dummyObject = array('type'=>'D'); |
| 77 |
$this->_AddGDIObject($dummyObject); |
| 78 |
break; |
| 79 |
case 0x0106: // SetPolyFillMode |
| 80 |
$polyFillMode = unpack('smode', $parms); |
| 81 |
$polyFillMode = $polyFillMode['mode']; |
| 82 |
break; |
| 83 |
case 0x01f0: // DeleteObject |
| 84 |
$idx = unpack('Sidx', $parms); |
| 85 |
$idx = $idx['idx']; |
| 86 |
$this->_DeleteGDIObject($idx); |
| 87 |
break; |
| 88 |
case 0x012d: // SelectObject |
| 89 |
$idx = unpack('Sidx', $parms); |
| 90 |
$idx = $idx['idx']; |
| 91 |
$obj = $this->_GetGDIObject($idx); |
| 92 |
switch ($obj['type']) { |
| 93 |
case 'B': |
| 94 |
$nullBrush = false; |
| 95 |
if ($obj['style'] == 1) { $nullBrush = true; } |
| 96 |
else { |
| 97 |
$wmfdata .= $this->mpdf->SetFColor($this->mpdf->ConvertColor('rgb('.$obj['r'].','.$obj['g'].','.$obj['b'].')'), true)."\n"; |
| 98 |
} |
| 99 |
break; |
| 100 |
case 'P': |
| 101 |
$nullPen = false; |
| 102 |
$dashArray = array(); |
| 103 |
// dash parameters are custom |
| 104 |
switch ($obj['style']) { |
| 105 |
case 0: // PS_SOLID |
| 106 |
break; |
| 107 |
case 1: // PS_DASH |
| 108 |
$dashArray = array(3,1); |
| 109 |
break; |
| 110 |
case 2: // PS_DOT |
| 111 |
$dashArray = array(0.5,0.5); |
| 112 |
break; |
| 113 |
case 3: // PS_DASHDOT |
| 114 |
$dashArray = array(2,1,0.5,1); |
| 115 |
break; |
| 116 |
case 4: // PS_DASHDOTDOT |
| 117 |
$dashArray = array(2,1,0.5,1,0.5,1); |
| 118 |
break; |
| 119 |
case 5: // PS_NULL |
| 120 |
$nullPen = true; |
| 121 |
break; |
| 122 |
} |
| 123 |
if (!$nullPen) { |
| 124 |
$wmfdata .= $this->mpdf->SetDColor($this->mpdf->ConvertColor('rgb('.$obj['r'].','.$obj['g'].','.$obj['b'].')'), true)."\n"; |
| 125 |
$wmfdata .= sprintf("%.3F w\n",$obj['width']*$k); |
| 126 |
} |
| 127 |
if (!empty($dashArray)) { |
| 128 |
$s = '['; |
| 129 |
for ($i=0; $i<count($dashArray);$i++) { |
| 130 |
$s .= $dashArray[$i] * $k; |
| 131 |
if ($i != count($dashArray)-1) { $s .= ' '; } |
| 132 |
} |
| 133 |
$s .= '] 0 d'; |
| 134 |
$wmfdata .= $s."\n"; |
| 135 |
} |
| 136 |
break; |
| 137 |
} |
| 138 |
break; |
| 139 |
case 0x0325: // Polyline |
| 140 |
case 0x0324: // Polygon |
| 141 |
$coords = unpack('s'.($size-3), $parms); |
| 142 |
$numpoints = $coords[1]; |
| 143 |
for ($i = $numpoints; $i > 0; $i--) { |
| 144 |
$px = $coords[2*$i]; |
| 145 |
$py = $coords[2*$i+1]; |
| 146 |
|
| 147 |
if ($i < $numpoints) { $wmfdata .= $this->_LineTo($px, $py); } |
| 148 |
else { $wmfdata .= $this->_MoveTo($px, $py); } |
| 149 |
} |
| 150 |
if ($func == 0x0325) { $op = 's'; } |
| 151 |
else if ($func == 0x0324) { |
| 152 |
if ($nullPen) { |
| 153 |
if ($nullBrush) { $op = 'n'; } // no op |
| 154 |
else { $op = 'f'; } // fill |
| 155 |
} |
| 156 |
else { |
| 157 |
if ($nullBrush) { $op = 's'; } // stroke |
| 158 |
else { $op = 'b'; } // stroke and fill |
| 159 |
} |
| 160 |
if ($polyFillMode==1 && ($op=='b' || $op=='f')) { $op .= '*'; } // use even-odd fill rule |
| 161 |
} |
| 162 |
$wmfdata .= $op."\n"; |
| 163 |
break; |
| 164 |
case 0x0538: // PolyPolygon |
| 165 |
$coords = unpack('s'.($size-3), $parms); |
| 166 |
$numpolygons = $coords[1]; |
| 167 |
$adjustment = $numpolygons; |
| 168 |
for ($j = 1; $j <= $numpolygons; $j++) { |
| 169 |
$numpoints = $coords[$j + 1]; |
| 170 |
for ($i = $numpoints; $i > 0; $i--) { |
| 171 |
$px = $coords[2*$i + $adjustment]; |
| 172 |
$py = $coords[2*$i+1 + $adjustment]; |
| 173 |
if ($i == $numpoints) { $wmfdata .= $this->_MoveTo($px, $py); } |
| 174 |
else { $wmfdata .= $this->_LineTo($px, $py); } |
| 175 |
} |
| 176 |
$adjustment += $numpoints * 2; |
| 177 |
} |
| 178 |
|
| 179 |
if ($nullPen) { |
| 180 |
if ($nullBrush) { $op = 'n'; } // no op |
| 181 |
else { $op = 'f'; } // fill |
| 182 |
} |
| 183 |
else { |
| 184 |
if ($nullBrush) { $op = 's'; } // stroke |
| 185 |
else { $op = 'b'; } // stroke and fill |
| 186 |
} |
| 187 |
if ($polyFillMode==1 && ($op=='b' || $op=='f')) { $op .= '*'; } // use even-odd fill rule |
| 188 |
$wmfdata .= $op."\n"; |
| 189 |
break; |
| 190 |
case 0x0000: |
| 191 |
$endRecord = true; |
| 192 |
break; |
| 193 |
} |
| 194 |
} |
| 195 |
|
| 196 |
|
| 197 |
return array(1,$wmfdata,$wo,$we); |
| 198 |
} |
| 199 |
|
| 200 |
|
| 201 |
function _MoveTo($x, $y) { |
| 202 |
return "$x $y m\n"; |
| 203 |
} |
| 204 |
|
| 205 |
// a line must have been started using _MoveTo() first |
| 206 |
function _LineTo($x, $y) { |
| 207 |
return "$x $y l\n"; |
| 208 |
} |
| 209 |
|
| 210 |
function _AddGDIObject($obj) { |
| 211 |
// find next available slot |
| 212 |
$idx = 0; |
| 213 |
if (!empty($this->gdiObjectArray)) { |
| 214 |
$empty = false; |
| 215 |
$i = 0; |
| 216 |
while (!$empty) { |
| 217 |
$empty = !isset($this->gdiObjectArray[$i]); |
| 218 |
$i++; |
| 219 |
} |
| 220 |
$idx = $i-1; |
| 221 |
} |
| 222 |
$this->gdiObjectArray[$idx] = $obj; |
| 223 |
} |
| 224 |
|
| 225 |
function _GetGDIObject($idx) { |
| 226 |
return $this->gdiObjectArray[$idx]; |
| 227 |
} |
| 228 |
|
| 229 |
function _DeleteGDIObject($idx) { |
| 230 |
unset($this->gdiObjectArray[$idx]); |
| 231 |
} |
| 232 |
|
| 233 |
|
| 234 |
} |
| 235 |
|
| 236 |
?> |
