author | Claus Gittinger <cg@exept.de> |
Tue, 10 Aug 1999 12:18:47 +0200 | |
changeset 1216 | 26fe79e724d0 |
parent 1188 | bea6424548e3 |
child 1221 | 1436ca154fe0 |
permissions | -rw-r--r-- |
643 | 1 |
" |
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COPYRIGHT (c) 1997 by eXept Software AG |
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All Rights Reserved |
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This software is furnished under a license and may be used |
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only in accordance with the terms of that license and with the |
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inclusion of the above copyright notice. This software may not |
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be provided or otherwise made available to, or used by, any |
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other person. No title to or ownership of the software is |
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hereby transferred. |
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" |
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Object subclass:#MIMETypes |
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instanceVariableNames:'' |
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classVariableNames:'TypeToImageReaderClassMapping FileSuffixToTypeMapping |
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FileSuffixToImageReaderClassMapping CharSetToFontMapping' |
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poolDictionaries:'' |
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category:'System-Documentation' |
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! |
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!MIMETypes class methodsFor:'documentation'! |
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copyright |
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" |
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COPYRIGHT (c) 1997 by eXept Software AG |
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All Rights Reserved |
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This software is furnished under a license and may be used |
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only in accordance with the terms of that license and with the |
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inclusion of the above copyright notice. This software may not |
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be provided or otherwise made available to, or used by, any |
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other person. No title to or ownership of the software is |
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hereby transferred. |
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" |
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! |
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documentation |
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" |
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just a place to keep MIME information |
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(avoid spreading things at many places) |
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MIMETypes is abstract and functional. |
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Actually, in some OperatingSystems, this information may |
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be found in some config files (or registries). |
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Therefore, this class may have to be extended to support this |
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and fetch the information from there eventually. |
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[author:] |
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Claus Gittinger |
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" |
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! ! |
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!MIMETypes class methodsFor:'initialization'! |
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initialize |
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"initialize wellKnown facts" |
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|typeToImageReaderClassMapping fileSuffixToTypeMapping |
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fileSuffixToImageReaderClassMapping charSetToFontMapping| |
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(fileSuffixToImageReaderClassMapping := FileSuffixToImageReaderClassMapping) isNil ifTrue:[ |
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parents:
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FileSuffixToImageReaderClassMapping := fileSuffixToImageReaderClassMapping := Dictionary new |
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parents:
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]. |
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(typeToImageReaderClassMapping := TypeToImageReaderClassMapping) isNil ifTrue:[ |
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TypeToImageReaderClassMapping := typeToImageReaderClassMapping := Dictionary new |
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]. |
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(fileSuffixToTypeMapping := FileSuffixToTypeMapping) isNil ifTrue:[ |
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FileSuffixToTypeMapping := fileSuffixToTypeMapping := Dictionary new |
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]. |
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"/ setup file-suffix to mimeType mapping ... |
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#( |
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"/ image formats ... |
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('jpg' 'jpeg') 'image/jpeg' |
1188 | 81 |
'gif' 'image/gif' |
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('tif' 'tiff') 'image/tiff' |
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'xbm' 'image/x-xbitmap' |
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'xpm' 'image/x-xpixmap' |
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'png' 'image/x-png' |
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'pcd' 'image/x-photo-cd' |
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'bmp' 'image/x-MS-bmp' |
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'rgb' 'image/x-rgb' |
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'ppm' 'image/x-portable-pixmap' |
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'pgm' 'image/x-portable-graymap' |
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'pbm' 'image/x-portable-bitmap' |
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'pnm' 'image/x-portable-anymap' |
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'xwd' 'image/x-xwindowdump' |
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'ras' 'image/x-cmu-raster' |
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'tga' 'image/x-targa' |
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"/ misc text ... |
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('htm' 'html') 'text/html' |
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('txt' 'text') 'text/plain' |
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'ps' 'application/postscript' |
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'pdf' 'application/pdf' |
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'rtf' 'application/rtf' |
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"/ video formats ... |
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'movie' 'video/x-sgi-movie' |
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'avi' 'video/x-msvideo' |
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('qt' 'mov' 'moov') 'video/quicktime' |
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('mpv2' 'mp2' 'mpeg2') 'video/x-mpeg2' |
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('mpv' 'mpegv' 'mpg' 'mpeg') 'video/mpeg' |
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"/ audio formats ... |
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'ra' 'audio/x-pn-realaudio' |
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('mpa' 'mpega') 'audio/x-mpeg' |
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'wav' 'audio/x-wav' |
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('aif' 'aiff' 'aifc') 'audio/x-aiff' |
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('au' 'snd') 'audio/basic' |
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"/ misc stuff |
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'st' 'application/x-smalltalk-source' |
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'js' 'application/x-javascript' |
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'java' 'application/x-java-source' |
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'tar' 'application/x-tar' |
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'tgz' 'application/x-tar-compressed' |
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'zip' 'application/x-zip-compressed' |
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'sh' 'application/x-sh' |
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'tcl' 'application/x-tcl' |
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'pl' 'application/x-perl' |
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) pairWiseDo:[:suff :type| |
1188 | 136 |
suff isArray ifTrue:[ |
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suff do:[:s | fileSuffixToTypeMapping at:s put:type] |
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] ifFalse:[ |
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fileSuffixToTypeMapping at:suff put:type |
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] |
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]. |
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"/ setup mimeType to image reader class mapping ... |
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parents:
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typeToImageReaderClassMapping at:'image/jpeg' put:JPEGReader. |
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typeToImageReaderClassMapping at:'image/gif' put:GIFReader. |
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typeToImageReaderClassMapping at:'image/tiff' put:TIFFReader. |
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"/ setup suffix to image reader class mapping ... |
645 | 150 |
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fileSuffixToImageReaderClassMapping at:'jpg' put:JPEGReader. |
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fileSuffixToImageReaderClassMapping at:'gif' put:GIFReader. |
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fileSuffixToImageReaderClassMapping at:'tif' put:TIFFReader. |
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"/ character sets (not really mime stuff, but also placed here) |
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(charSetToFontMapping := CharSetToFontMapping) isNil ifTrue:[ |
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CharSetToFontMapping := charSetToFontMapping := Dictionary new |
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]. |
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#( |
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'iso2022-jp' 'jis*0208*' |
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'x-iso2022-jp' 'jis*0208*' |
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'x-euc-jp' 'jis*0208*' |
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'x-shift-jis' 'jis*0208*' |
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'x-sjis' 'jis*0208*' |
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'x-jis7' 'jis*0208*' |
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'jis7' 'jis*0208*' |
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'euc' 'jis*0208*' |
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'euc-jp' 'jis*0208*' |
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'sjis' 'jis*0208*' |
713 | 173 |
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'big5' 'big5*' |
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'gb2312' 'gb*' |
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'hz-gb-2312' 'gb*' |
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'x-gbk' 'gb*' |
1022 | 179 |
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'iso2022-kr' 'ksc*' |
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'x-euc-kr' 'ksc*' |
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) pairWiseDo:[:charSet :fontEncoding| |
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charSetToFontMapping at:charSet put:fontEncoding |
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]. |
643 | 185 |
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186 |
" |
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187 |
self initialize |
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188 |
" |
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||
1023 | 190 |
"Modified: / 1.8.1998 / 17:50:57 / cg" |
643 | 191 |
! ! |
192 |
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193 |
!MIMETypes class methodsFor:'accessing'! |
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194 |
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647 | 195 |
defineImageType:mimeType suffix:aSuffix reader:aReaderClass |
196 |
"register an image reader." |
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197 |
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198 |
aSuffix notNil ifTrue:[ |
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199 |
self imageReaderForSuffix:aSuffix put:aReaderClass. |
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200 |
]. |
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201 |
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202 |
mimeType notNil ifTrue:[ |
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203 |
self imageReaderForType:mimeType put:aReaderClass |
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]. |
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205 |
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206 |
(aSuffix notNil and:[mimeType notNil]) ifTrue:[ |
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self mimeTypeForSuffix:aSuffix put:mimeType |
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]. |
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209 |
! |
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210 |
||
643 | 211 |
fileSuffixToImageReaderMapping |
1021 | 212 |
"return the suffix-to-imageReader mapping" |
213 |
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643 | 214 |
^ FileSuffixToImageReaderClassMapping ? #() |
215 |
||
1021 | 216 |
"Modified: / 1.8.1998 / 17:00:11 / cg" |
643 | 217 |
! |
218 |
||
648 | 219 |
fontForCharset:aCharSet |
1021 | 220 |
"return the font-encoding for an iso-charset" |
221 |
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648 | 222 |
^ CharSetToFontMapping at:aCharSet ifAbsent:nil |
223 |
||
224 |
" |
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1021 | 225 |
MIMETypes fontForCharset:'iso2022-jp' |
648 | 226 |
MIMETypes fontForCharset:'euc-jp' |
227 |
" |
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228 |
||
1021 | 229 |
"Modified: / 1.8.1998 / 17:00:57 / cg" |
648 | 230 |
! |
231 |
||
643 | 232 |
imageFileSuffixes |
1021 | 233 |
"return a collection with known file suffixes" |
234 |
||
643 | 235 |
FileSuffixToImageReaderClassMapping isNil ifTrue:[^ #()]. |
236 |
^ FileSuffixToImageReaderClassMapping keys |
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237 |
||
1021 | 238 |
"Created: / 30.6.1997 / 22:04:48 / cg" |
239 |
"Modified: / 1.8.1998 / 17:01:26 / cg" |
|
643 | 240 |
! |
241 |
||
242 |
imageReaderClasses |
|
1021 | 243 |
"return a collection of registered image reader classes" |
244 |
||
645 | 245 |
|setOfClasses| |
246 |
||
247 |
setOfClasses := IdentitySet new. |
|
248 |
FileSuffixToImageReaderClassMapping notNil ifTrue:[ |
|
249 |
FileSuffixToImageReaderClassMapping keysAndValuesDo:[:suff :cls | |
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1021 | 250 |
setOfClasses add:cls |
251 |
]. |
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645 | 252 |
]. |
253 |
TypeToImageReaderClassMapping notNil ifTrue:[ |
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254 |
TypeToImageReaderClassMapping keysAndValuesDo:[:suff :cls | |
|
1021 | 255 |
setOfClasses add:cls |
256 |
]. |
|
645 | 257 |
]. |
258 |
^ setOfClasses |
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643 | 259 |
|
1021 | 260 |
"Created: / 30.6.1997 / 22:03:42 / cg" |
261 |
"Modified: / 1.8.1998 / 16:59:52 / cg" |
|
643 | 262 |
! |
263 |
||
264 |
imageReaderForSuffix:aSuffix |
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1021 | 265 |
"given a file suffix, return an approriate image reader class" |
266 |
||
643 | 267 |
FileSuffixToImageReaderClassMapping isNil ifTrue:[^ nil]. |
268 |
^ FileSuffixToImageReaderClassMapping at:aSuffix asLowercase ifAbsent:nil |
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269 |
||
1021 | 270 |
"Created: / 30.6.1997 / 21:59:11 / cg" |
271 |
"Modified: / 1.8.1998 / 17:01:58 / cg" |
|
643 | 272 |
! |
273 |
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274 |
imageReaderForSuffix:aSuffix put:aReaderClass |
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1021 | 275 |
"register an image reader for a file suffix" |
276 |
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643 | 277 |
FileSuffixToImageReaderClassMapping isNil ifTrue:[ |
278 |
FileSuffixToImageReaderClassMapping := Dictionary new. |
|
279 |
]. |
|
280 |
FileSuffixToImageReaderClassMapping at:aSuffix asLowercase put:aReaderClass |
|
281 |
||
1021 | 282 |
"Created: / 30.6.1997 / 21:59:43 / cg" |
283 |
"Modified: / 1.8.1998 / 17:02:14 / cg" |
|
643 | 284 |
! |
285 |
||
286 |
imageReaderForType:mimeTypeString |
|
1021 | 287 |
"given a mime-type, return an approriate image reader class" |
288 |
||
643 | 289 |
TypeToImageReaderClassMapping isNil ifTrue:[^ nil]. |
290 |
^ TypeToImageReaderClassMapping at:mimeTypeString asLowercase ifAbsent:nil |
|
291 |
||
1021 | 292 |
"Created: / 30.6.1997 / 21:56:01 / cg" |
293 |
"Modified: / 1.8.1998 / 17:02:28 / cg" |
|
643 | 294 |
! |
295 |
||
296 |
imageReaderForType:mimeTypeString put:aReaderClass |
|
1021 | 297 |
"register an image reader for a mime-type" |
298 |
||
643 | 299 |
TypeToImageReaderClassMapping isNil ifTrue:[ |
300 |
TypeToImageReaderClassMapping := Dictionary new. |
|
301 |
]. |
|
302 |
TypeToImageReaderClassMapping at:mimeTypeString asLowercase put:aReaderClass |
|
303 |
||
1021 | 304 |
"Created: / 30.6.1997 / 21:56:11 / cg" |
305 |
"Modified: / 1.8.1998 / 17:02:40 / cg" |
|
643 | 306 |
! |
307 |
||
308 |
mimeTypeForSuffix:suffix |
|
1021 | 309 |
"given a file suffix, return the mime-type" |
310 |
||
1180
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311 |
|type lcSuffix| |
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|
312 |
|
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313 |
lcSuffix := suffix asLowercase. |
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314 |
type := FileSuffixToTypeMapping at:lcSuffix ifAbsent:nil. |
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changeset
|
315 |
type isNil ifTrue:[ |
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parents:
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diff
changeset
|
316 |
"/ allow for fallback ... |
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|
317 |
type := OperatingSystem mimeTypeForSuffix:lcSuffix. |
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|
318 |
"/ the special value #unknown is returned as nil; |
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parents:
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diff
changeset
|
319 |
"/ this avoids constant retry if a mimeType is not known in |
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parents:
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diff
changeset
|
320 |
"/ the OS. |
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parents:
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diff
changeset
|
321 |
type isNil ifTrue:[ |
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parents:
1023
diff
changeset
|
322 |
FileSuffixToTypeMapping at:lcSuffix put:#unknown |
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changeset
|
323 |
]. |
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parents:
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changeset
|
324 |
]. |
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parents:
1023
diff
changeset
|
325 |
type == #unknown ifTrue:[ |
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parents:
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changeset
|
326 |
^ nil |
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parents:
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diff
changeset
|
327 |
]. |
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Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
328 |
^ type |
643 | 329 |
|
1021 | 330 |
"Created: / 30.6.1997 / 21:55:51 / cg" |
331 |
"Modified: / 1.8.1998 / 17:02:59 / cg" |
|
643 | 332 |
! |
333 |
||
334 |
mimeTypeForSuffix:suffix put:mimeType |
|
1021 | 335 |
"register a mime type for a file suffix" |
336 |
||
643 | 337 |
FileSuffixToTypeMapping isNil ifTrue:[ |
338 |
FileSuffixToTypeMapping := Dictionary new |
|
339 |
]. |
|
340 |
FileSuffixToTypeMapping at:suffix put:mimeType asLowercase |
|
341 |
||
1021 | 342 |
"Created: / 30.6.1997 / 21:56:20 / cg" |
343 |
"Modified: / 1.8.1998 / 17:03:18 / cg" |
|
643 | 344 |
! ! |
345 |
||
346 |
!MIMETypes class methodsFor:'documentation'! |
|
347 |
||
348 |
version |
|
1216 | 349 |
^ '$Header: /cvs/stx/stx/libview2/MIMETypes.st,v 1.16 1999-08-10 10:18:47 cg Exp $' |
643 | 350 |
! ! |
351 |
MIMETypes initialize! |