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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,16 +1,20 @@ | ||
| """ | ||
| *A Python module for controlling power and brightness of the official Raspberry Pi 7" touch display.* | ||
| A Python module for controlling power and brightness | ||
| of the official Raspberry Pi 7" touch display. | ||
| :Author: Linus Groh ([email protected]) | ||
| Ships with a CLI, GUI and Python API. | ||
| :Author: Linus Groh | ||
| :License: MIT license | ||
| """ | ||
| from __future__ import print_function | ||
| import time | ||
| import os | ||
| import sys | ||
| import argparse | ||
|
|
||
| __author__ = "Linus Groh" | ||
| __version__ = "1.5.0" | ||
| __version__ = "1.6.0" | ||
| PATH = "/sys/class/backlight/rpi_backlight/" | ||
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@@ -26,6 +30,7 @@ def _get_value(name): | |
| except PermissionError: | ||
| _perm_denied() | ||
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| def _set_value(name, value): | ||
| with open(os.path.join(PATH, name), "w") as f: | ||
| f.write(str(value)) | ||
|
|
@@ -46,21 +51,27 @@ def get_power(): | |
| return not _get_value("bl_power") | ||
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| def set_brightness(value, smooth=True): | ||
| def set_brightness(value, smooth=False, duration=1): | ||
| """Set the display brightness.""" | ||
| max_value = get_max_brightness() | ||
| if type(value) != int: | ||
| raise ValueError("integer required, got '{}'".format(type(value))) | ||
| if not isinstance(value, int): | ||
| raise ValueError( | ||
| "integer required, got '{}'".format(type(value))) | ||
| if not 10 < value <= max_value: | ||
| raise ValueError("value must be between 11 and {}, got {}".format(max_value, value)) | ||
|
|
||
| raise ValueError( | ||
| "value must be between 11 and {}, got {}".format(max_value, value)) | ||
|
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| if smooth: | ||
| if not isinstance(duration, (int, float)): | ||
| raise ValueError( | ||
| "integer or float required, got '{}'".format(type(duration))) | ||
| actual = get_actual_brightness() | ||
| diff = abs(value-actual) | ||
| while actual != value: | ||
| actual = actual - 1 if actual > value else actual + 1 | ||
|
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| _set_value("brightness", actual) | ||
| time.sleep(0.01) | ||
| time.sleep(duration/diff) | ||
| else: | ||
| _set_value("brightness", value) | ||
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@@ -75,21 +86,50 @@ def set_power(on): | |
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| def cli(): | ||
| """Start the command line interface.""" | ||
| global input | ||
| if sys.version.startswith("2"): | ||
| input = raw_input | ||
|
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||
| while True: | ||
| value = input("Enter value of brightness (between 11 and 255): ") | ||
| try: | ||
| value = int(value) | ||
| if 10 < value < 256: | ||
| break | ||
| else: | ||
| continue | ||
| except ValueError: | ||
| continue | ||
| set_brightness(value) | ||
| parser = argparse.ArgumentParser( | ||
| description="Control power and brightness of the " | ||
| "official Raspberry Pi 7\" touch display.") | ||
| parser.add_argument("-b", "--brightness", metavar='VALUE', | ||
| type=int, choices=range(11, 256), | ||
| help="set the display brightness to VALUE (11-255)") | ||
| parser.add_argument("-d", "--duration", type=int, default=1, | ||
| help="fading duration in seconds") | ||
| parser.add_argument("-s", "--smooth", action='store_true', | ||
| help="fade the display brightness, see -d/--duration") | ||
| parser.add_argument("--on", action='store_true', | ||
| help="set the display powered on") | ||
| parser.add_argument("--off", action='store_true', | ||
| help="set the display powered off") | ||
| parser.add_argument("--max-brightness", action='store_true', | ||
| help="get the maximum display brightness") | ||
| parser.add_argument("--actual-brightness", action='store_true', | ||
| help="get the actual display brightness") | ||
| parser.add_argument("--power", action='store_true', | ||
| help="get the current power state") | ||
| args = parser.parse_args() | ||
|
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||
| if all(arg in (False, None) for arg in ( | ||
| args.off, args.on, args.brightness, args.max_brightness, | ||
| args.actual_brightness, args.power)): | ||
| parser.print_help() | ||
|
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| if args.off is True: | ||
| set_power(False) | ||
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| if args.on is True: | ||
| set_power(True) | ||
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| if args.brightness: | ||
| set_brightness(args.brightness, args.smooth, args.duration) | ||
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| if args.max_brightness: | ||
| print(get_max_brightness()) | ||
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| if args.actual_brightness: | ||
| print(get_actual_brightness()) | ||
|
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| if args.power: | ||
| print(get_power()) | ||
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| def gui(): | ||
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@@ -106,11 +146,11 @@ def gui(): | |
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| ad1 = Gtk.Adjustment(value=get_actual_brightness(), lower=11, upper=255) | ||
| scale = Gtk.Scale(orientation=Gtk.Orientation.HORIZONTAL, adjustment=ad1) | ||
| def on_scale_changed(scale, _): | ||
| value = int(scale.get_value()) | ||
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| def on_scale_changed(s, _): | ||
| value = int(s.get_value()) | ||
| set_brightness(value) | ||
|
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| scale.connect("button-release-event", on_scale_changed) | ||
| scale.connect("key_release_event", on_scale_changed) | ||
| scale.connect("scroll-event", on_scale_changed) | ||
|
|
||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
|
|
@@ -8,22 +8,25 @@ | |
| setup(name="rpi_backlight", | ||
| py_modules=["rpi_backlight"], | ||
| version=__version__, | ||
| description="A Python module for controlling power and brightness of the official Raspberry Pi 7\" touch display.", | ||
| description="A Python module for controlling power and brightness " | ||
| "of the official Raspberry Pi 7\" touch display.", | ||
| long_description=long_description, | ||
| author="Linus Groh", | ||
| license="MIT", | ||
| author_email="[email protected]", | ||
| url="https://github.com/linusg/rpi-backlight", | ||
| download_url="https://pypi.python.org/pypi/rpi_backlight", | ||
| keywords=["raspberry pi", "display", "touchscreen", "brightness"], | ||
| keywords=["raspberry pi", "display", "touchscreen", | ||
| "brightness", "backlight"], | ||
| classifiers=[ | ||
| "Development Status :: 3 - Alpha", | ||
| "Development Status :: 5 - Production/Stable", | ||
| "Intended Audience :: Developers", | ||
| "License :: OSI Approved :: MIT License", | ||
| "Operating System :: POSIX :: Linux", | ||
| "Programming Language :: Python", | ||
| "Programming Language :: Python :: 2", | ||
| "Programming Language :: Python :: 3", | ||
| "Topic :: System", | ||
| "Topic :: System :: Hardware", | ||
| "Topic :: Multimedia", | ||
| "Topic :: Utilities", | ||
|
|
@@ -35,4 +38,4 @@ | |
| "rpi-backlight-gui = rpi_backlight:gui", | ||
| ], | ||
| }, | ||
| ) | ||
| ) | ||