mirror of
https://github.com/liberatedsystems/Sideband_CE.git
synced 2024-09-03 04:13:27 +02:00
101 lines
2.4 KiB
Python
101 lines
2.4 KiB
Python
"""
|
|
Behaviors/Touch
|
|
===============
|
|
|
|
.. rubric:: Provides easy access to events.
|
|
|
|
The following events are available:
|
|
|
|
- on_long_touch
|
|
- on_double_tap
|
|
- on_triple_tap
|
|
|
|
Usage
|
|
-----
|
|
|
|
.. code-block:: python
|
|
|
|
from kivy.lang import Builder
|
|
|
|
from kivymd.app import MDApp
|
|
from kivymd.uix.behaviors import TouchBehavior
|
|
from kivymd.uix.button import MDRaisedButton
|
|
|
|
KV = '''
|
|
MDScreen:
|
|
|
|
MyButton:
|
|
text: "PRESS ME"
|
|
pos_hint: {"center_x": .5, "center_y": .5}
|
|
'''
|
|
|
|
|
|
class MyButton(MDRaisedButton, TouchBehavior):
|
|
def on_long_touch(self, *args):
|
|
print("<on_long_touch> event")
|
|
|
|
def on_double_tap(self, *args):
|
|
print("<on_double_tap> event")
|
|
|
|
def on_triple_tap(self, *args):
|
|
print("<on_triple_tap> event")
|
|
|
|
|
|
class MainApp(MDApp):
|
|
def build(self):
|
|
return Builder.load_string(KV)
|
|
|
|
|
|
MainApp().run()
|
|
"""
|
|
|
|
__all__ = ("TouchBehavior",)
|
|
|
|
from functools import partial
|
|
|
|
from kivy.clock import Clock
|
|
from kivy.properties import NumericProperty
|
|
|
|
|
|
class TouchBehavior:
|
|
duration_long_touch = NumericProperty(0.4)
|
|
"""
|
|
Time for a long touch.
|
|
|
|
:attr:`duration_long_touch` is an :class:`~kivy.properties.NumericProperty`
|
|
and defaults to `0.4`.
|
|
"""
|
|
|
|
def __init__(self, **kwargs):
|
|
super().__init__(**kwargs)
|
|
self.bind(
|
|
on_touch_down=self.create_clock, on_touch_up=self.delete_clock
|
|
)
|
|
|
|
def create_clock(self, widget, touch, *args):
|
|
if self.collide_point(touch.x, touch.y):
|
|
if "event" not in touch.ud:
|
|
callback = partial(self.on_long_touch, touch)
|
|
Clock.schedule_once(callback, self.duration_long_touch)
|
|
touch.ud["event"] = callback
|
|
|
|
if touch.is_double_tap:
|
|
self.on_double_tap(touch, *args)
|
|
if touch.is_triple_tap:
|
|
self.on_triple_tap(touch, *args)
|
|
|
|
def delete_clock(self, widget, touch, *args):
|
|
if self.collide_point(touch.x, touch.y):
|
|
if "event" in touch.ud:
|
|
Clock.unschedule(touch.ud["event"])
|
|
del touch.ud["event"]
|
|
|
|
def on_long_touch(self, touch, *args):
|
|
"""Called when the widget is pressed for a long time."""
|
|
|
|
def on_double_tap(self, touch, *args):
|
|
"""Called by double clicking on the widget."""
|
|
|
|
def on_triple_tap(self, touch, *args):
|
|
"""Called by triple clicking on the widget."""
|