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| author | John MacFarlane <jgm@berkeley.edu> | 2021-06-23 11:39:50 -0700 |
|---|---|---|
| committer | John MacFarlane <jgm@berkeley.edu> | 2021-06-23 11:39:50 -0700 |
| commit | 4a7a0cff294c48d1acd690ea593f4ab2c817ec27 (patch) | |
| tree | 8928ef258290928dfe5e619ac7271ab4cecdfd1b /src/Text/Pandoc/ImageSize.hs | |
| parent | 235cdea629de95f5a6c40a043e8dff6b19a46d3d (diff) | |
| download | pandoc-4a7a0cff294c48d1acd690ea593f4ab2c817ec27.tar.gz | |
ImageSize: Add Tiff constructor for ImageType.
[Minor API change]
This allows pandoc to get size information from tiff images.
Closes #7405.
Diffstat (limited to 'src/Text/Pandoc/ImageSize.hs')
| -rw-r--r-- | src/Text/Pandoc/ImageSize.hs | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/Text/Pandoc/ImageSize.hs b/src/Text/Pandoc/ImageSize.hs index bb1aa6351..2b7d10611 100644 --- a/src/Text/Pandoc/ImageSize.hs +++ b/src/Text/Pandoc/ImageSize.hs @@ -57,7 +57,8 @@ import Codec.Picture (decodeImageWithMetadata) -- quick and dirty functions to get image sizes -- algorithms borrowed from wwwis.pl -data ImageType = Png | Gif | Jpeg | Svg | Pdf | Eps | Emf deriving Show +data ImageType = Png | Gif | Jpeg | Svg | Pdf | Eps | Emf | Tiff + deriving Show data Direction = Width | Height instance Show Direction where show Width = "width" @@ -100,6 +101,8 @@ imageType :: ByteString -> Maybe ImageType imageType img = case B.take 4 img of "\x89\x50\x4e\x47" -> return Png "\x47\x49\x46\x38" -> return Gif + "\x49\x49\x2a\x00" -> return Tiff + "\x4D\x4D\x00\x2a" -> return Tiff "\xff\xd8\xff\xe0" -> return Jpeg -- JFIF "\xff\xd8\xff\xe1" -> return Jpeg -- Exif "%PDF" -> return Pdf @@ -124,6 +127,7 @@ imageSize opts img = checkDpi <$> Just Png -> getSize img Just Gif -> getSize img Just Jpeg -> getSize img + Just Tiff -> getSize img Just Svg -> mbToEither "could not determine SVG size" $ svgSize opts img Just Eps -> mbToEither "could not determine EPS size" $ epsSize img Just Pdf -> mbToEither "could not determine PDF size" $ pdfSize img |