tuikit: tuikit/core/signal.py@105b1affc3c2 (annotated)

86 0978fb755d31 Add core Application (adjusted), Window (new version), Signal (replaces Emitter), Size (adjusted). Add application demo. Radek Brich <radek.brich@devl.cz> parents: diff changeset	1	class Signal:
0978fb755d31 Add core Application (adjusted), Window (new version), Signal (replaces Emitter), Size (adjusted). Add application demo. Radek Brich <radek.brich@devl.cz> parents: diff changeset	2
0978fb755d31 Add core Application (adjusted), Window (new version), Signal (replaces Emitter), Size (adjusted). Add application demo. Radek Brich <radek.brich@devl.cz> parents: diff changeset	3	"""Simple implementation of signal/slot concept.
0978fb755d31 Add core Application (adjusted), Window (new version), Signal (replaces Emitter), Size (adjusted). Add application demo. Radek Brich <radek.brich@devl.cz> parents: diff changeset	4
0978fb755d31 Add core Application (adjusted), Window (new version), Signal (replaces Emitter), Size (adjusted). Add application demo. Radek Brich <radek.brich@devl.cz> parents: diff changeset	5	In signalling class, add attribute with "sig_" prefix:
0978fb755d31 Add core Application (adjusted), Window (new version), Signal (replaces Emitter), Size (adjusted). Add application demo. Radek Brich <radek.brich@devl.cz> parents: diff changeset	6	self.sig_clicked = Signal()
0978fb755d31 Add core Application (adjusted), Window (new version), Signal (replaces Emitter), Size (adjusted). Add application demo. Radek Brich <radek.brich@devl.cz> parents: diff changeset	7
0978fb755d31 Add core Application (adjusted), Window (new version), Signal (replaces Emitter), Size (adjusted). Add application demo. Radek Brich <radek.brich@devl.cz> parents: diff changeset	8	In listening class, add normal method, e.g. "close()" and connect it, e.g:
0978fb755d31 Add core Application (adjusted), Window (new version), Signal (replaces Emitter), Size (adjusted). Add application demo. Radek Brich <radek.brich@devl.cz> parents: diff changeset	9	button.sig_clicked.connect(window.close)
0978fb755d31 Add core Application (adjusted), Window (new version), Signal (replaces Emitter), Size (adjusted). Add application demo. Radek Brich <radek.brich@devl.cz> parents: diff changeset	10
0978fb755d31 Add core Application (adjusted), Window (new version), Signal (replaces Emitter), Size (adjusted). Add application demo. Radek Brich <radek.brich@devl.cz> parents: diff changeset	11	When button gets clicked, it should call the signal:
0978fb755d31 Add core Application (adjusted), Window (new version), Signal (replaces Emitter), Size (adjusted). Add application demo. Radek Brich <radek.brich@devl.cz> parents: diff changeset	12	self.sig_clicked()
0978fb755d31 Add core Application (adjusted), Window (new version), Signal (replaces Emitter), Size (adjusted). Add application demo. Radek Brich <radek.brich@devl.cz> parents: diff changeset	13
0978fb755d31 Add core Application (adjusted), Window (new version), Signal (replaces Emitter), Size (adjusted). Add application demo. Radek Brich <radek.brich@devl.cz> parents: diff changeset	14	Then window.close() will be called.
0978fb755d31 Add core Application (adjusted), Window (new version), Signal (replaces Emitter), Size (adjusted). Add application demo. Radek Brich <radek.brich@devl.cz> parents: diff changeset	15
0978fb755d31 Add core Application (adjusted), Window (new version), Signal (replaces Emitter), Size (adjusted). Add application demo. Radek Brich <radek.brich@devl.cz> parents: diff changeset	16	"""
0978fb755d31 Add core Application (adjusted), Window (new version), Signal (replaces Emitter), Size (adjusted). Add application demo. Radek Brich <radek.brich@devl.cz> parents: diff changeset	17
109 105b1affc3c2 Update keypress propagation. Allow focus change by tab key. Add log property to Widget for smart logging. Radek Brich <radek.brich@devl.cz> parents: 86 diff changeset	18	def __init__(self, allow_stop=False):
86 0978fb755d31 Add core Application (adjusted), Window (new version), Signal (replaces Emitter), Size (adjusted). Add application demo. Radek Brich <radek.brich@devl.cz> parents: diff changeset	19	self._handlers = []
109 105b1affc3c2 Update keypress propagation. Allow focus change by tab key. Add log property to Widget for smart logging. Radek Brich <radek.brich@devl.cz> parents: 86 diff changeset	20	#: Allow one of the handlers to stop processing signal
105b1affc3c2 Update keypress propagation. Allow focus change by tab key. Add log property to Widget for smart logging. Radek Brich <radek.brich@devl.cz> parents: 86 diff changeset	21	#: The handler should return True value,
105b1affc3c2 Update keypress propagation. Allow focus change by tab key. Add log property to Widget for smart logging. Radek Brich <radek.brich@devl.cz> parents: 86 diff changeset	22	#: then other handlers will not be called
105b1affc3c2 Update keypress propagation. Allow focus change by tab key. Add log property to Widget for smart logging. Radek Brich <radek.brich@devl.cz> parents: 86 diff changeset	23	self.allow_stop = allow_stop
86 0978fb755d31 Add core Application (adjusted), Window (new version), Signal (replaces Emitter), Size (adjusted). Add application demo. Radek Brich <radek.brich@devl.cz> parents: diff changeset	24
0978fb755d31 Add core Application (adjusted), Window (new version), Signal (replaces Emitter), Size (adjusted). Add application demo. Radek Brich <radek.brich@devl.cz> parents: diff changeset	25	def __call__(self, args, *kwargs):
0978fb755d31 Add core Application (adjusted), Window (new version), Signal (replaces Emitter), Size (adjusted). Add application demo. Radek Brich <radek.brich@devl.cz> parents: diff changeset	26	"""Emit the signal to all connected handlers."""
0978fb755d31 Add core Application (adjusted), Window (new version), Signal (replaces Emitter), Size (adjusted). Add application demo. Radek Brich <radek.brich@devl.cz> parents: diff changeset	27	for handler in self._handlers:
109 105b1affc3c2 Update keypress propagation. Allow focus change by tab key. Add log property to Widget for smart logging. Radek Brich <radek.brich@devl.cz> parents: 86 diff changeset	28	res = handler(args, *kwargs)
105b1affc3c2 Update keypress propagation. Allow focus change by tab key. Add log property to Widget for smart logging. Radek Brich <radek.brich@devl.cz> parents: 86 diff changeset	29	if self.allow_stop and res:
105b1affc3c2 Update keypress propagation. Allow focus change by tab key. Add log property to Widget for smart logging. Radek Brich <radek.brich@devl.cz> parents: 86 diff changeset	30	return True
86 0978fb755d31 Add core Application (adjusted), Window (new version), Signal (replaces Emitter), Size (adjusted). Add application demo. Radek Brich <radek.brich@devl.cz> parents: diff changeset	31
0978fb755d31 Add core Application (adjusted), Window (new version), Signal (replaces Emitter), Size (adjusted). Add application demo. Radek Brich <radek.brich@devl.cz> parents: diff changeset	32	def connect(self, handler):
0978fb755d31 Add core Application (adjusted), Window (new version), Signal (replaces Emitter), Size (adjusted). Add application demo. Radek Brich <radek.brich@devl.cz> parents: diff changeset	33	if not handler in self._handlers:
0978fb755d31 Add core Application (adjusted), Window (new version), Signal (replaces Emitter), Size (adjusted). Add application demo. Radek Brich <radek.brich@devl.cz> parents: diff changeset	34	self._handlers.append(handler)
0978fb755d31 Add core Application (adjusted), Window (new version), Signal (replaces Emitter), Size (adjusted). Add application demo. Radek Brich <radek.brich@devl.cz> parents: diff changeset	35
0978fb755d31 Add core Application (adjusted), Window (new version), Signal (replaces Emitter), Size (adjusted). Add application demo. Radek Brich <radek.brich@devl.cz> parents: diff changeset	36	def disconnect(self, handler):
0978fb755d31 Add core Application (adjusted), Window (new version), Signal (replaces Emitter), Size (adjusted). Add application demo. Radek Brich <radek.brich@devl.cz> parents: diff changeset	37	self._handlers.remove(handler)

author	Radek Brich <radek.brich@devl.cz>
	Wed, 03 Sep 2014 19:08:21 +0200
changeset 109	105b1affc3c2
parent 86	0978fb755d31
permissions	-rw-r--r--