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luma.core 1.0.3

A component library to support SBC display drivers

luma.core | luma.docs | luma.emulator | luma.examples | luma.lcd | luma.led_matrix | luma.oled

Luma.Core

luma.core is a component library providing a Pillow-compatible drawing canvas, and other functionality to support drawing primitives and text-rendering capabilities for small displays on the Raspberry Pi and other single board computers:

  • scrolling/panning capability,
  • terminal-style printing,
  • state management,
  • color/greyscale (where supported),
  • dithering to monochrome,
  • sprite animation,
  • flexible framebuffering (depending on device capabilities)

Device drivers extend luma.core to provide the correct initialization sequences for specific physical display devices/chipsets.

There are several drivers for different classes of device available:

There are emulators that run in real-time (with pygame) and others that can take screenshots, or assemble animated GIFs, as per the examples below. Source code for these are available in the examples directory of the luma.examples repository.

License

The MIT License (MIT)

Copyright (c) 2017 Richard Hull & Contributors

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Contributing

Pull requests (code changes / documentation / typos / feature requests / setup) are gladly accepted. If you are intending to introduce some large-scale changes, please get in touch first to make sure we’re on the same page: try to include a docstring for any new method or class, and keep method bodies small, readable and PEP8-compliant. Add tests and strive to keep the code coverage levels high.

GitHub

The source code is available to clone at: https://github.com/rm-hull/luma.core

Contributors

  • Thijs Triemstra (@thijstriemstra)
  • Christoph Handel (@fragfutter)
  • @Boeeerb
  • @xes
  • Roger Dahl (@rogerdahl)
  • Václav Šmilauer (@eudoxos)
  • Claus Bjerre (@bjerrep)
  • @bkntrx
  • @7754359337
  • @theraspydev
  • @vortigont

ChangeLog

Version Description Date
1.0.3
  • Explicitly state ‘UTF-8’ encoding in setup when reading files
2017/10/18
1.0.2
  • Fix conditional install on wheel
2017/09/15
1.0.1
  • Don’t install RPi.GPIO & spidev if setup running on OSX
2017/09/04
1.0.0
  • Stable release (remove all deprecated methods & parameters)
2017/07/29
0.9.5
  • Remove assert in terminal to allow extended characters to be printed (note: this only works for Python3 presently)
2017/07/06
0.9.4
  • Add tolerant class for legacy font handling non-ASCII chars
  • Add CP437 chars to fonts.py
2017/07/01
0.9.3
  • LCD_FONT: lowercase cyrillic chars added, minor corrections in uppercase chars
2017/06/25
0.9.2
  • Add background= option to luma.core.render.canvas
  • Add TCA9548A I2C multiplex scanner (contrib)
  • Display I2C address in hex when error occurs
2017/06/19
0.9.1
  • Add cmdline block orientation of 180
2017/05/01
0.9.0
  • Add word-wrap capability to luma.core.virtual.terminal
  • Bug fix to luma.core.virtual.terminal when scrolling
2017/04/22
0.8.1
  • Propagate segment_mapper through other virtual devices
2017/04/14
0.8.0
  • Migrate seven-segment wrapper from luma.led_matrix
2017/04/14
0.7.5
  • Allow alternative RPi.GPIO implementations
2017/04/09
0.7.4
  • Reduce size of space character in legacy proportional font
2017/04/09
0.7.3
  • Cmdline args now supports backlight active high/low
2017/04/07
0.7.2
  • Add --h-offset=N and --v-offset=N params to cmdline args
2017/04/07
0.7.1
  • Improve formatting in command line options
2017/04/06
0.7.0
  • Add software-based bitbang SPI implementation
  • Cmdline args parsing
  • Use monotonic clock
2017/03/27
0.6.2
  • Move GPIO.setmode() to point when referenced
  • Use regex prefix in ANSI color parser (fixes deprecation warning)
2017/03/19
0.6.1
  • Deprecate spi params
  • Fix resource leak in spritesheet
2017/03/13
0.6.0
  • Terminal supports ANSI Color escape codes
  • Catch & rethrow IOErrors
2017/03/13
0.5.4
  • Rework decorators
2017/03/08
0.5.3
  • Catch & rethrow all RPi.GPIO RuntimeExceptions
2017/03/08
0.5.2
  • Raise error.UnsupportedPlatform if RPi.GPIO is not available
  • Bug fix to luma.core.virtual.terminal to handle multiple \n
2017/03/08
0.5.1
  • Bug fix: legacy.show_message regression
2017/03/05
0.5.0
  • BREAKING CHANGES: Rework framework_regulator class
  • Documentation updates
2017/03/05
0.4.4
  • Bug fix: legacy.show_message off-by-one bug
2017/03/02
0.4.3
  • Restrict exported Python symbols from luma.core.serial
2017/03/02
0.4.2
  • Optional alignment of framebuffer bounding_box to word-boundaries
2017/02/28
0.4.1
  • Refactor framebuffer interface
2017/02/27
0.4.0
  • Add spritesheet and framerate_regulator functionality
  • Add full-frame and diff-to-previous framebuffer implementations
  • Remove unnecessary travis/tox dependencies
2017/02/27
0.3.2
  • Bug fix: legacy.show_message wrong device height
  • Add Cyrillic chars to legacy font
  • Make pytest-runner a conditional requirement
2017/02/24
0.3.1
  • Imported legacy font handling from rm-hull/luma.led_matrix
2017/02/19
0.2.0
  • Fix bug in seven_segment transform (display correct char)
  • Moved emulator code to rm-hull/luma.emulator github repo
2017/02/17
0.1.15
  • Require at least Pillow 4.0.0
  • Configurable transfer_size on SPI writes
  • Documentation updates
2017/02/11
0.1.14
  • Use a more flexible no-op implementation
  • Use spidev’s writebytes() rather than xfer2()
  • Dont write GIF animation if nothing was displayed
  • Attempt to optimize palette when saving GIF animations
2017/02/03
0.1.13
  • Fix bug in setup script
2017/01/23
0.1.12
  • Assert valid SPI bus speed
  • Don’t report errors in shutdown
  • Don’t package as zip-safe
  • Add 7-segment LED emulation transformer
2017/01/21
0.1.11
  • Rejig packaging to include emulator assets
2017/01/20
0.1.3
  • Reset SPI device on initialization
  • Add LED matrix emulation transformer
2017/01/19
0.1.2
  • Namespace packaging
2017/01/10
0.1.0
  • Split out core functionality from rm-hull/ssd1306
2017/01/10
 
File Type Py Version Uploaded on Size
luma.core-1.0.3-py2.py3-none-any.whl (md5) Python Wheel 2.7 2017-10-18 48KB
luma.core-1.0.3.tar.gz (md5) Source 2017-10-18 51KB