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Adafruit GFX graphics core Arduino library, this is the 'core' class that all our other graphics libraries derive from
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Paint Your Dragon 334e815bc1 Merge pull request #75 from skelliam/tomthumb 
Added TomThumb (3x5 pixel font) to /Fonts
2016-02-22 13:22:24 -08:00
fontconvert minor changes to build on Fedora 2016-01-31 10:11:43 +01:00
Fonts Adding TomThumb to Fonts 2016-02-21 21:42:12 -05:00
Adafruit_GFX.cpp Improved(?) 32-bit CPU compatibility for fonts 2016-02-22 13:20:35 -08:00
Adafruit_GFX.h adagfxswap() renamed and localized to .cpp file to avoid collisions 2016-01-26 10:37:56 -08:00
gfxfont.h Fonts FONTS fonts! 1.1 release 2015-12-22 12:02:47 -08:00
glcdfont.c Fonts FONTS fonts! 1.1 release 2015-12-22 12:02:47 -08:00
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README.md Add README notes re: Library Manager 2015-12-22 12:05:19 -08:00

README.md

Adafruit GFX Library

This is the core graphics library for all our displays, providing a common set of graphics primitives (points, lines, circles, etc.). It needs to be paired with a hardware-specific library for each display device we carry (to handle the lower-level functions).

Adafruit invests time and resources providing this open source code, please support Adafruit and open-source hardware by purchasing products from Adafruit!

Written by Limor Fried/Ladyada for Adafruit Industries. BSD license, check license.txt for more information. All text above must be included in any redistribution.

Recent Arduino IDE releases include the Library Manager for easy installation. Otherwise, to download, click the DOWNLOAD ZIP button, uncompress and rename the uncompressed folder Adafruit_GFX. Confirm that the Adafruit_GFX folder contains Adafruit_GFX.cpp and Adafruit_GFX.h. Place the Adafruit_GFX library folder your /Libraries/ folder. You may need to create the Libraries subfolder if its your first library. Restart the IDE.

Useful Resources

  • Image2Code: This is a handy Java GUI utility to convert a BMP file into the array code necessary to display the image with the drawBitmap function. Check out the code at ehubin's GitHub repository: https://github.com/ehubin/Adafruit-GFX-Library/tree/master/Img2Code

  • drawXBitmap function: You can use the GIMP photo editor to save a .xbm file and use the array saved in the file to draw a bitmap with the drawXBitmap function. See the pull request here for more details: https://github.com/adafruit/Adafruit-GFX-Library/pull/31

  • 'Fonts' folder contains bitmap fonts for use with recent (1.1 and later) Adafruit_GFX. To use a font in your Arduino sketch, #include the corresponding .h file and pass address of GFXfont struct to setFont(). Pass NULL to revert to 'classic' fixed-space bitmap font.

  • 'fontconvert' folder contains a command-line tool for converting TTF fonts to Adafruit_GFX .h format.