/usr/share/doc/libghc-gd-doc/html/gd.txt is in libghc-gd-doc 3000.7.3-8.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 | -- Hoogle documentation, generated by Haddock
-- See Hoogle, http://www.haskell.org/hoogle/
-- | A Haskell binding to a subset of the GD graphics library
--
-- This is a binding to a (currently very small) subset of the GD
-- graphics library.
@package gd
@version 3000.7.3
module Graphics.GD.ByteString.Lazy
data Image
type Size = (Int, Int)
type Point = (Int, Int)
type Color = CInt
-- | Create a new empty image.
newImage :: Size -> IO Image
-- | Make a copy of an image.
copyImage :: Image -> IO Image
-- | Copy a region of one image into another
copyRegion :: Point -> Size -> Image -> Point -> Image -> IO ()
-- | Copy a region of one image into another, rescaling the region
copyRegionScaled :: Point -> Size -> Image -> Point -> Size -> Image -> IO ()
-- | Creates an image, performs an operation on the image, and frees it.
-- This function allows block scoped management of <a>Image</a> objects.
-- If you are handling large images, the delay before the finalizer which
-- frees the image runs may cause significant temporary extra memory use.
-- Use this function to force the image to be freed as soons as you are
-- done with it. Note that it is unsafe to hold on to the <a>Image</a>
-- after the function is done.
withImage :: IO Image -> (Image -> IO b) -> IO b
-- | Load a JPEG image from a file.
loadJpegFile :: FilePath -> IO Image
-- | Load a JPEG image from a buffer.
loadJpegData :: Int -> Ptr a -> IO Image
-- | Load a JPEG image from a ByteString
loadJpegByteString :: ByteString -> IO Image
-- | Load a PNG image from a file.
loadPngFile :: FilePath -> IO Image
-- | Load a PNG image from a buffer.
loadPngData :: Int -> Ptr a -> IO Image
-- | Load a PNG image from a ByteString
loadPngByteString :: ByteString -> IO Image
-- | Load a GIF image from a file.
loadGifFile :: FilePath -> IO Image
-- | Load a GIF image from a buffer.
loadGifData :: Int -> Ptr a -> IO Image
-- | Load a GIF image from a ByteString
loadGifByteString :: ByteString -> IO Image
-- | Save an image as a JPEG file.
saveJpegFile :: Int -> FilePath -> Image -> IO ()
-- | Write a JPEG format ByteString of an image.
saveJpegByteString :: Int -> Image -> IO ByteString
-- | Save an image as a PNG file.
savePngFile :: FilePath -> Image -> IO ()
-- | Write a PNG format ByteString of an image.
savePngByteString :: Image -> IO ByteString
-- | Save an image as a GIF file.
saveGifFile :: FilePath -> Image -> IO ()
-- | Write a GIF format ByteString of an image.
saveGifByteString :: Image -> IO ByteString
-- | Get the size of an image.
imageSize :: Image -> IO (Int, Int)
-- | Retrieves the color index or the color values of a particular pixel.
getPixel :: (Int, Int) -> Image -> IO Color
-- | Resize an image to a give size.
resizeImage :: Int -> Int -> Image -> IO Image
-- | Rotate an image by a multiple of 90 degrees counter-clockwise.
rotateImage :: Int -> Image -> IO Image
-- | Fill the entire image with the given color.
fillImage :: Color -> Image -> IO ()
drawFilledRectangle :: Point -> Point -> Color -> Image -> IO ()
drawFilledEllipse :: Point -> Size -> Color -> Image -> IO ()
drawLine :: Point -> Point -> Color -> Image -> IO ()
drawArc :: Point -> Size -> Int -> Int -> Color -> Image -> IO ()
-- | Use anti-aliasing when performing the given drawing function. This can
-- cause a segault with some gd versions.
antiAliased :: (Color -> Image -> IO a) -> Color -> Image -> IO a
setPixel :: Point -> Color -> Image -> IO ()
-- | Globally switch from using font file names to fontconfig paths | for
-- fonts in drawString (and measureString).
useFontConfig :: Bool -> IO Bool
-- | Draw a string using the FreeType 2.x library
drawString :: ByteString -> Double -> Double -> Point -> ByteString -> Color -> Image -> IO (Point, Point, Point, Point)
-- | Measure a string using the FreeType 2.x library. This computes the
-- bounding box but does not actually draw the string to any image.
measureString :: ByteString -> Double -> Double -> Point -> ByteString -> Color -> IO (Point, Point, Point, Point)
-- | Draw strings around the top and bottom of a torus
drawStringCircle :: Point -> Double -> Double -> Double -> ByteString -> Double -> ByteString -> ByteString -> Color -> Image -> IO ()
rgb :: Int -> Int -> Int -> Color
rgba :: Int -> Int -> Int -> Int -> Color
toRGBA :: Color -> (Int, Int, Int, Int)
module Graphics.GD.ByteString
data Image
type Size = (Int, Int)
type Point = (Int, Int)
type Color = CInt
-- | Create a new empty image.
newImage :: Size -> IO Image
-- | Make a copy of an image.
copyImage :: Image -> IO Image
-- | Copy a region of one image into another
copyRegion :: Point -> Size -> Image -> Point -> Image -> IO ()
-- | Copy a region of one image into another, rescaling the region
copyRegionScaled :: Point -> Size -> Image -> Point -> Size -> Image -> IO ()
-- | Creates an image, performs an operation on the image, and frees it.
-- This function allows block scoped management of <a>Image</a> objects.
-- If you are handling large images, the delay before the finalizer which
-- frees the image runs may cause significant temporary extra memory use.
-- Use this function to force the image to be freed as soons as you are
-- done with it. Note that it is unsafe to hold on to the <a>Image</a>
-- after the function is done.
withImage :: IO Image -> (Image -> IO b) -> IO b
-- | Load a JPEG image from a file.
loadJpegFile :: FilePath -> IO Image
-- | Load a JPEG image from a buffer.
loadJpegData :: Int -> Ptr a -> IO Image
-- | Load a JPEG image from a ByteString
loadJpegByteString :: ByteString -> IO Image
-- | Load a PNG image from a file.
loadPngFile :: FilePath -> IO Image
-- | Load a PNG image from a buffer.
loadPngData :: Int -> Ptr a -> IO Image
-- | Load a PNG image from a ByteString
loadPngByteString :: ByteString -> IO Image
-- | Load a GIF image from a file.
loadGifFile :: FilePath -> IO Image
-- | Load a GIF image from a buffer.
loadGifData :: Int -> Ptr a -> IO Image
-- | Load a GIF image from a ByteString
loadGifByteString :: ByteString -> IO Image
-- | Save an image as a JPEG file.
saveJpegFile :: Int -> FilePath -> Image -> IO ()
-- | Write a JPEG format ByteString of an image.
saveJpegByteString :: Int -> Image -> IO ByteString
-- | Save an image as a PNG file.
savePngFile :: FilePath -> Image -> IO ()
-- | Write a PNG format ByteString of an image.
savePngByteString :: Image -> IO ByteString
-- | Save an image as a GIF file.
saveGifFile :: FilePath -> Image -> IO ()
-- | Write a GIF format ByteString of an image.
saveGifByteString :: Image -> IO ByteString
-- | Get the size of an image.
imageSize :: Image -> IO (Int, Int)
-- | Retrieves the color index or the color values of a particular pixel.
getPixel :: (Int, Int) -> Image -> IO Color
-- | Resize an image to a give size.
resizeImage :: Int -> Int -> Image -> IO Image
-- | Rotate an image by a multiple of 90 degrees counter-clockwise.
rotateImage :: Int -> Image -> IO Image
-- | Fill the entire image with the given color.
fillImage :: Color -> Image -> IO ()
drawFilledRectangle :: Point -> Point -> Color -> Image -> IO ()
drawFilledEllipse :: Point -> Size -> Color -> Image -> IO ()
drawLine :: Point -> Point -> Color -> Image -> IO ()
drawArc :: Point -> Size -> Int -> Int -> Color -> Image -> IO ()
-- | Use anti-aliasing when performing the given drawing function. This can
-- cause a segault with some gd versions.
antiAliased :: (Color -> Image -> IO a) -> Color -> Image -> IO a
setPixel :: Point -> Color -> Image -> IO ()
-- | Globally switch from using font file names to fontconfig paths | for
-- fonts in drawString (and measureString).
useFontConfig :: Bool -> IO Bool
-- | Draw a string using the FreeType 2.x library
drawString :: ByteString -> Double -> Double -> Point -> ByteString -> Color -> Image -> IO (Point, Point, Point, Point)
-- | Measure a string using the FreeType 2.x library. This computes the
-- bounding box but does not actually draw the string to any image.
measureString :: ByteString -> Double -> Double -> Point -> ByteString -> Color -> IO (Point, Point, Point, Point)
-- | Draw strings around the top and bottom of a torus
drawStringCircle :: Point -> Double -> Double -> Double -> ByteString -> Double -> ByteString -> ByteString -> Color -> Image -> IO ()
rgb :: Int -> Int -> Int -> Color
rgba :: Int -> Int -> Int -> Int -> Color
toRGBA :: Color -> (Int, Int, Int, Int)
module Graphics.GD
data Image
type Size = (Int, Int)
type Point = (Int, Int)
type Color = CInt
-- | To access the definition <tt>gdBrush</tt> from GD
newtype PCREOption
PCREOption :: CInt -> PCREOption
[unPCREOption] :: PCREOption -> CInt
-- | Create a new empty image.
newImage :: Size -> IO Image
-- | Make a copy of an image.
copyImage :: Image -> IO Image
-- | Copy a region of one image into another
copyRegion :: Point -> Size -> Image -> Point -> Image -> IO ()
-- | Copy a region of one image into another, rescaling the region
copyRegionScaled :: Point -> Size -> Image -> Point -> Size -> Image -> IO ()
-- | Creates an image, performs an operation on the image, and frees it.
-- This function allows block scoped management of <a>Image</a> objects.
-- If you are handling large images, the delay before the finalizer which
-- frees the image runs may cause significant temporary extra memory use.
-- Use this function to force the image to be freed as soons as you are
-- done with it. Note that it is unsafe to hold on to the <a>Image</a>
-- after the function is done.
withImage :: IO Image -> (Image -> IO b) -> IO b
-- | Load a JPEG image from a file.
loadJpegFile :: FilePath -> IO Image
-- | Load a JPEG image from a buffer.
loadJpegData :: Int -> Ptr a -> IO Image
-- | Load a JPEG image from a ByteString
loadJpegByteString :: ByteString -> IO Image
-- | Load a PNG image from a file.
loadPngFile :: FilePath -> IO Image
-- | Load a PNG image from a buffer.
loadPngData :: Int -> Ptr a -> IO Image
-- | Load a PNG image from a ByteString
loadPngByteString :: ByteString -> IO Image
-- | Load a GIF image from a file.
loadGifFile :: FilePath -> IO Image
-- | Load a GIF image from a buffer.
loadGifData :: Int -> Ptr a -> IO Image
-- | Load a GIF image from a ByteString
loadGifByteString :: ByteString -> IO Image
-- | Save an image as a JPEG file.
saveJpegFile :: Int -> FilePath -> Image -> IO ()
-- | Write a JPEG format ByteString of an image.
saveJpegByteString :: Int -> Image -> IO ByteString
-- | Save an image as a PNG file.
savePngFile :: FilePath -> Image -> IO ()
-- | Write a PNG format ByteString of an image.
savePngByteString :: Image -> IO ByteString
-- | Save an image as a GIF file.
saveGifFile :: FilePath -> Image -> IO ()
-- | Write a GIF format ByteString of an image.
saveGifByteString :: Image -> IO ByteString
-- | Get the size of an image.
imageSize :: Image -> IO (Int, Int)
-- | Retrieves the color index or the color values of a particular pixel.
getPixel :: (Int, Int) -> Image -> IO Color
-- | Resize an image to a give size.
resizeImage :: Int -> Int -> Image -> IO Image
-- | Rotate an image by a multiple of 90 degrees counter-clockwise.
rotateImage :: Int -> Image -> IO Image
-- | Special character for gdBrushed
brushed :: PCREOption
-- | Set an <tt>Image</tt> as a brush for an <tt>Image</tt>
setBrush :: Image -> Image -> IO ()
-- | Fill the entire image with the given color.
fillImage :: Color -> Image -> IO ()
drawFilledRectangle :: Point -> Point -> Color -> Image -> IO ()
drawFilledEllipse :: Point -> Size -> Color -> Image -> IO ()
drawLine :: Point -> Point -> Color -> Image -> IO ()
drawArc :: Point -> Size -> Int -> Int -> Color -> Image -> IO ()
-- | Use anti-aliasing when performing the given drawing function. This can
-- cause a segault with some gd versions.
antiAliased :: (Color -> Image -> IO a) -> Color -> Image -> IO a
setPixel :: Point -> Color -> Image -> IO ()
colorAllocate :: CInt -> CInt -> CInt -> CInt -> Image -> IO Color
-- | Globally switch from using font file names to fontconfig paths | for
-- fonts in drawString (and measureString).
useFontConfig :: Bool -> IO Bool
-- | Draw a string using the FreeType 2.x library
drawString :: String -> Double -> Double -> Point -> String -> Color -> Image -> IO (Point, Point, Point, Point)
-- | Measure a string using the FreeType 2.x library. This computes the
-- bounding box but does not actually draw the string to any image.
measureString :: String -> Double -> Double -> Point -> String -> Color -> IO (Point, Point, Point, Point)
-- | Draw strings around the top and bottom of a torus
drawStringCircle :: Point -> Double -> Double -> Double -> String -> Double -> String -> String -> Color -> Image -> IO ()
rgb :: Int -> Int -> Int -> Color
rgba :: Int -> Int -> Int -> Int -> Color
toRGBA :: Color -> (Int, Int, Int, Int)
saveAlpha :: Bool -> Image -> IO ()
alphaBlending :: Bool -> Image -> IO ()
instance GHC.Show.Show Graphics.GD.PCREOption
instance GHC.Classes.Eq Graphics.GD.PCREOption
|