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64 lines
1.7 KiB
64 lines
1.7 KiB
'''Keybinding
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==========
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This module forces the mapping of some keys to functions:
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* F11: Rotate the Window through 0, 90, 180 and 270 degrees
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* Shift + F11: Switches between portrait and landscape on desktops
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* F12: Take a screenshot
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Note: this doesn't work if the application requests the keyboard beforehand.
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Usage
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-----
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For normal module usage, please see the :mod:`~kivy.modules` documentation.
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The Keybinding module, however, can also be imported and used just
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like a normal python module. This has the added advantage of being
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able to activate and deactivate the module programmatically::
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from kivy.app import App
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from kivy.uix.button import Button
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from kivy.modules import keybinding
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from kivy.core.window import Window
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class Demo(App):
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def build(self):
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button = Button(text="Hello")
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keybinding.start(Window, button)
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return button
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Demo().run()
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To remove the Keybinding, you can do the following::
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Keybinding.stop(Window, button)
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'''
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from kivy.utils import platform
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__all__ = ('start', 'stop')
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def _on_keyboard_handler(instance, key, scancode, codepoint, modifiers):
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if key == 293 and modifiers == []: # F12
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instance.screenshot()
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elif key == 292 and modifiers == []: # F11
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instance.rotation += 90
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elif key == 292 and modifiers == ['shift']: # Shift + F11
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if platform in ('win', 'linux', 'macosx'):
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instance.rotation = 0
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w, h = instance.size
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w, h = h, w
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instance.size = (w, h)
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def start(win, ctx):
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win.bind(on_keyboard=_on_keyboard_handler)
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def stop(win, ctx):
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win.unbind(on_keyboard=_on_keyboard_handler)
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