# ---
# What's more, you can also access low level API for further usage.
with safe_connection(_DEVICE_ID) as connection:
builder = CommandBuilder()
builder.down(0, 400, 400, 50)
builder.commit()
builder.move(0, 500, 500, 50)
builder.commit()
builder.move(0, 800, 400, 50)
builder.commit()
builder.up(0)
builder.commit()
builder.publish(connection)
# if you are using MNTDevice object, replace with this:
# builder.publish(device.connection)
# ---
# Of course, you may want to operate it just like using minitouch itself.
# send raw text to it
_OPERATION = '''
d 0 150 150 50\n
c\n
u 0\n
c\n
'''
with safe_connection(_DEVICE_ID) as conn:
class TouchEventManager():
'''
Manages all touch events in each frame for a single device.
At each frame, a new CommandBuilder is prepared for all widgets.
'''
def __init__(self, device):
self.device = device
self.touch_id_max = 10
self.widget_touch_id = dict()
self.command_builder = CommandBuilder()
# touch id methods
def get_touch_id(self, widget):
'''
assigns a touch id to a widget
'''
assigned_ids = self.widget_touch_id.values()
for i in range(self.touch_id_max):
if i not in assigned_ids:
self.widget_touch_id[widget] = i
return i
logger.error(
"Cannot assign new touch id to widget {widget_name}".format(
widget_name=widget.name))
def reclaim_touch_id(self, widget):
'''
reclaim the touch id previously assigned to a widget
'''
if self.widget_touch_id[widget] != -1:
self.widget_touch_id[widget] = -1
return
logger.error(
"Already reclaimed touch id of widget {widget_name}".format(
widget_name=widget.name))
# button methods
def update(self):
'''
All actions are delayed until update of TouchEventManager is called,
so that in a single
frame no contradictory actions are performed (for example, touching and
releasing a button at the same frame should not be allowed because it is
not physically possible.)
this method of TouchEventManager should be called only after all
widgets updates are called.
'''
# commit all changes
# if nothing is to be done in this frame, don't send anything.
if self.command_builder._content == '':
pass
else:
self.command_builder.commit()
# logger.debug( self.command_builder._content )
self.command_builder.publish(self.device.connection)
# refresh the command_builder
self.command_builder = CommandBuilder()