mirror of
https://github.com/python/cpython.git
synced 2025-07-14 06:45:17 +00:00

svn+ssh://pythondev@svn.python.org/python/branches/p3yk ................ r56322 | kurt.kaiser | 2007-07-12 11:35:03 -0700 (Thu, 12 Jul 2007) | 2 lines Replace obscure code which was failing in py3k. ................ r56323 | kurt.kaiser | 2007-07-12 11:44:12 -0700 (Thu, 12 Jul 2007) | 3 lines 1. Remove new division option 2. Update IDLE version to 3.0x ................ r56327 | kurt.kaiser | 2007-07-12 12:20:20 -0700 (Thu, 12 Jul 2007) | 5 lines Fix another instance of this defect in Tkinter, and one in IDLE. Patch 1724999 by Ali Gholami Rudi -- avoid complaints about dict size change during iter in destroy call. ................ r56339 | georg.brandl | 2007-07-13 03:07:25 -0700 (Fri, 13 Jul 2007) | 2 lines Fix #1753310: regrtest -x doesn't work anymore ................ r56361 | kurt.kaiser | 2007-07-13 18:25:24 -0700 (Fri, 13 Jul 2007) | 2 lines convert a map() iterator to a list to get this working. ................ r56362 | kurt.kaiser | 2007-07-13 18:53:45 -0700 (Fri, 13 Jul 2007) | 2 lines Was modifying dict during iteration. ................ r56376 | collin.winter | 2007-07-14 11:56:19 -0700 (Sat, 14 Jul 2007) | 1 line Add an example of class decorators to test_grammar. ................ r56377 | collin.winter | 2007-07-14 12:00:17 -0700 (Sat, 14 Jul 2007) | 1 line Add a basic example of dictcomps to test_grammar. ................ r56413 | neal.norwitz | 2007-07-17 00:21:18 -0700 (Tue, 17 Jul 2007) | 149 lines Merged revisions 56202-56412 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r56204 | ronald.oussoren | 2007-07-08 23:02:21 -0700 (Sun, 08 Jul 2007) | 2 lines Patch 1693258: Fix for duplicate "preferences" menu-OS X ........ r56207 | ronald.oussoren | 2007-07-09 01:41:15 -0700 (Mon, 09 Jul 2007) | 4 lines Patch 1673122: be explicit about which libtool to use, to avoid name clashes when a users install GNU libtool early in his PATH ........ r56280 | georg.brandl | 2007-07-11 12:41:49 -0700 (Wed, 11 Jul 2007) | 2 lines Fix #1752132: wrong comment in opcode description. ........ r56293 | georg.brandl | 2007-07-12 01:05:45 -0700 (Thu, 12 Jul 2007) | 3 lines Patch #1752270, #1750931: complain if urllib2 add_handler called without handler. ........ r56296 | georg.brandl | 2007-07-12 01:11:29 -0700 (Thu, 12 Jul 2007) | 2 lines Patch #1739696: use code.co_code only if really necessary ........ r56298 | georg.brandl | 2007-07-12 01:38:00 -0700 (Thu, 12 Jul 2007) | 3 lines Patch #1673759: add a missing overflow check when formatting floats with %G. ........ r56302 | georg.brandl | 2007-07-12 02:06:41 -0700 (Thu, 12 Jul 2007) | 2 lines Patch #1731659: improve time.strptime docs. ........ r56304 | georg.brandl | 2007-07-12 02:24:04 -0700 (Thu, 12 Jul 2007) | 2 lines Patch #1731169: clean up expected skips list. ........ r56306 | georg.brandl | 2007-07-12 02:37:49 -0700 (Thu, 12 Jul 2007) | 3 lines Bug #1637365: add subsection about "__name__ == __main__" to the Python tutorial. ........ r56308 | georg.brandl | 2007-07-12 02:59:22 -0700 (Thu, 12 Jul 2007) | 5 lines Patch #1675424: Added tests for uncovered code in the zipfile module. The KeyError raised by Zipfile.getinfo for nonexistent names now has a descriptive message. ........ r56340 | facundo.batista | 2007-07-13 03:43:44 -0700 (Fri, 13 Jul 2007) | 6 lines Added tests for basic behavior of DateTime, Binary, and Fault classes and the escape function. Check that marshalling recursive sequences & dicts raises TypeError. Check that marshalling out-of-range ints raises OverflowError [Alan McIntyre - GSoC] ........ r56345 | raymond.hettinger | 2007-07-13 05:09:41 -0700 (Fri, 13 Jul 2007) | 1 line Correct the docs for takewhile(). Improve the recipe for nth(). Should be backported ........ r56348 | thomas.heller | 2007-07-13 06:59:39 -0700 (Fri, 13 Jul 2007) | 4 lines Repair COMError. Since exceptions are new style classes now, setting the methods and docstring after the type creation does not work, they must be in the dictionary before creating the type. ........ r56349 | thomas.heller | 2007-07-13 07:18:06 -0700 (Fri, 13 Jul 2007) | 1 line Add tests for _ctypes.COMError. ........ r56350 | thomas.heller | 2007-07-13 09:50:43 -0700 (Fri, 13 Jul 2007) | 4 lines Do not try to load the GLUT library in the ctypes tests. This test adds little value, but has a large problem on OS X, as explained in SF# 1581906. ........ r56352 | thomas.heller | 2007-07-13 10:12:23 -0700 (Fri, 13 Jul 2007) | 3 lines Fix for SF# 1701409: segfault in c_char_p of ctypes. The repr output of c_char_p and c_wchar_p has changed as a sideeffect. ........ r56355 | thomas.heller | 2007-07-13 10:46:54 -0700 (Fri, 13 Jul 2007) | 3 lines Fix for SF# 1649098: avoid zero-sized array declaration in structure. ........ r56357 | thomas.heller | 2007-07-13 12:51:55 -0700 (Fri, 13 Jul 2007) | 3 lines PyType_stgdict() returns a borrowed reference which must not be Py_DECREF'd. ........ r56360 | barry.warsaw | 2007-07-13 15:12:58 -0700 (Fri, 13 Jul 2007) | 10 lines In response to this SF bug: [ 1752723 ] email.message_from_string: initial line gets discarded I added a test to assert that when the first line of text passed to message_from_string() contains a leading space, the message ends up with the appropriate FirstHeaderLineIsContinuationDefect on its defects list. The bug is invalid. ........ r56364 | georg.brandl | 2007-07-14 10:12:23 -0700 (Sat, 14 Jul 2007) | 2 lines Bug #1753406: missing \versionadded for subprocess.check_call. ........ r56366 | georg.brandl | 2007-07-14 10:32:41 -0700 (Sat, 14 Jul 2007) | 2 lines Clarify webbrowser.open description. ........ r56380 | andrew.kuchling | 2007-07-14 13:58:21 -0700 (Sat, 14 Jul 2007) | 1 line Typo fix ........ r56382 | andrew.kuchling | 2007-07-14 14:56:19 -0700 (Sat, 14 Jul 2007) | 7 lines Avoid exception if there's a stray directory inside a Maildir folder. The Maildir specification doesn't seem to say anything about this situation, and it can happen if you're keeping a Maildir mailbox in Subversion (.svn directories) or some similar system. The patch just ignores directories in the cur/, new/, tmp/ folders. ........ r56392 | facundo.batista | 2007-07-14 15:41:45 -0700 (Sat, 14 Jul 2007) | 6 lines First version. Includes tests for helper functions: read, write, _exception, readwrite, closeall, compact_traceback; and for classes dispatcher, dispatcher_with_send, and file_wrapper. [Alan McIntyre - GSoC] ........ r56399 | facundo.batista | 2007-07-15 13:30:39 -0700 (Sun, 15 Jul 2007) | 5 lines Changed the used port and commented out some tests that uses a non documented function that appers to uses resources not present in Windows. ........ r56412 | facundo.batista | 2007-07-16 19:19:39 -0700 (Mon, 16 Jul 2007) | 6 lines Prevent asyncore.dispatcher tests from hanging by adding loop counters to server & client, and by adding asyncore.close_all calls in tearDown. Also choose correct expected logging results based on the value of __debug__ [Alan McIntyre - GSoC] ........ ................ r56442 | guido.van.rossum | 2007-07-18 10:26:38 -0700 (Wed, 18 Jul 2007) | 14 lines Merged revisions 56413-56441 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r56439 | georg.brandl | 2007-07-17 23:37:55 -0700 (Tue, 17 Jul 2007) | 2 lines Use "Unix" as platform name, not "UNIX". ........ r56441 | guido.van.rossum | 2007-07-18 10:19:14 -0700 (Wed, 18 Jul 2007) | 3 lines SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors. (Slightly tweaked for style and refcounts.) ........ ................
421 lines
17 KiB
Python
421 lines
17 KiB
Python
"""
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MultiCall - a class which inherits its methods from a Tkinter widget (Text, for
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example), but enables multiple calls of functions per virtual event - all
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matching events will be called, not only the most specific one. This is done
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by wrapping the event functions - event_add, event_delete and event_info.
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MultiCall recognizes only a subset of legal event sequences. Sequences which
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are not recognized are treated by the original Tk handling mechanism. A
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more-specific event will be called before a less-specific event.
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The recognized sequences are complete one-event sequences (no emacs-style
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Ctrl-X Ctrl-C, no shortcuts like <3>), for all types of events.
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Key/Button Press/Release events can have modifiers.
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The recognized modifiers are Shift, Control, Option and Command for Mac, and
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Control, Alt, Shift, Meta/M for other platforms.
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For all events which were handled by MultiCall, a new member is added to the
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event instance passed to the binded functions - mc_type. This is one of the
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event type constants defined in this module (such as MC_KEYPRESS).
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For Key/Button events (which are handled by MultiCall and may receive
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modifiers), another member is added - mc_state. This member gives the state
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of the recognized modifiers, as a combination of the modifier constants
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also defined in this module (for example, MC_SHIFT).
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Using these members is absolutely portable.
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The order by which events are called is defined by these rules:
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1. A more-specific event will be called before a less-specific event.
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2. A recently-binded event will be called before a previously-binded event,
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unless this conflicts with the first rule.
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Each function will be called at most once for each event.
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"""
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import sys
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import os
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import re
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import Tkinter
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# the event type constants, which define the meaning of mc_type
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MC_KEYPRESS=0; MC_KEYRELEASE=1; MC_BUTTONPRESS=2; MC_BUTTONRELEASE=3;
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MC_ACTIVATE=4; MC_CIRCULATE=5; MC_COLORMAP=6; MC_CONFIGURE=7;
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MC_DEACTIVATE=8; MC_DESTROY=9; MC_ENTER=10; MC_EXPOSE=11; MC_FOCUSIN=12;
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MC_FOCUSOUT=13; MC_GRAVITY=14; MC_LEAVE=15; MC_MAP=16; MC_MOTION=17;
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MC_MOUSEWHEEL=18; MC_PROPERTY=19; MC_REPARENT=20; MC_UNMAP=21; MC_VISIBILITY=22;
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# the modifier state constants, which define the meaning of mc_state
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MC_SHIFT = 1<<0; MC_CONTROL = 1<<2; MC_ALT = 1<<3; MC_META = 1<<5
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MC_OPTION = 1<<6; MC_COMMAND = 1<<7
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# define the list of modifiers, to be used in complex event types.
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if sys.platform == "darwin" and sys.executable.count(".app"):
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_modifiers = (("Shift",), ("Control",), ("Option",), ("Command",))
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_modifier_masks = (MC_SHIFT, MC_CONTROL, MC_OPTION, MC_COMMAND)
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else:
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_modifiers = (("Control",), ("Alt",), ("Shift",), ("Meta", "M"))
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_modifier_masks = (MC_CONTROL, MC_ALT, MC_SHIFT, MC_META)
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# a dictionary to map a modifier name into its number
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_modifier_names = dict([(name, number)
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for number in range(len(_modifiers))
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for name in _modifiers[number]])
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# A binder is a class which binds functions to one type of event. It has two
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# methods: bind and unbind, which get a function and a parsed sequence, as
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# returned by _parse_sequence(). There are two types of binders:
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# _SimpleBinder handles event types with no modifiers and no detail.
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# No Python functions are called when no events are binded.
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# _ComplexBinder handles event types with modifiers and a detail.
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# A Python function is called each time an event is generated.
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class _SimpleBinder:
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def __init__(self, type, widget, widgetinst):
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self.type = type
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self.sequence = '<'+_types[type][0]+'>'
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self.widget = widget
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self.widgetinst = widgetinst
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self.bindedfuncs = []
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self.handlerid = None
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def bind(self, triplet, func):
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if not self.handlerid:
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def handler(event, l = self.bindedfuncs, mc_type = self.type):
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event.mc_type = mc_type
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wascalled = {}
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for i in range(len(l)-1, -1, -1):
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func = l[i]
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if func not in wascalled:
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wascalled[func] = True
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r = func(event)
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if r:
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return r
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self.handlerid = self.widget.bind(self.widgetinst,
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self.sequence, handler)
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self.bindedfuncs.append(func)
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def unbind(self, triplet, func):
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self.bindedfuncs.remove(func)
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if not self.bindedfuncs:
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self.widget.unbind(self.widgetinst, self.sequence, self.handlerid)
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self.handlerid = None
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def __del__(self):
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if self.handlerid:
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self.widget.unbind(self.widgetinst, self.sequence, self.handlerid)
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# An int in range(1 << len(_modifiers)) represents a combination of modifiers
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# (if the least significent bit is on, _modifiers[0] is on, and so on).
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# _state_subsets gives for each combination of modifiers, or *state*,
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# a list of the states which are a subset of it. This list is ordered by the
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# number of modifiers is the state - the most specific state comes first.
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_states = range(1 << len(_modifiers))
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_state_names = [''.join(m[0]+'-'
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for i, m in enumerate(_modifiers)
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if (1 << i) & s)
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for s in _states]
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def expand_substates(states):
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'''For each item of states return a list containing all combinations of
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that item with individual bits reset, sorted by the number of set bits.
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'''
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def nbits(n):
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"number of bits set in n base 2"
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nb = 0
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while n:
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n, rem = divmod(n, 2)
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nb += rem
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return nb
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statelist = []
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for state in states:
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substates = list(set(state & x for x in states))
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substates.sort(lambda a,b: nbits(b) - nbits(a))
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statelist.append(substates)
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return statelist
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_state_subsets = expand_substates(_states)
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# _state_codes gives for each state, the portable code to be passed as mc_state
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_state_codes = []
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for s in _states:
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r = 0
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for i in range(len(_modifiers)):
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if (1 << i) & s:
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r |= _modifier_masks[i]
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_state_codes.append(r)
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class _ComplexBinder:
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# This class binds many functions, and only unbinds them when it is deleted.
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# self.handlerids is the list of seqs and ids of binded handler functions.
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# The binded functions sit in a dictionary of lists of lists, which maps
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# a detail (or None) and a state into a list of functions.
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# When a new detail is discovered, handlers for all the possible states
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# are binded.
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def __create_handler(self, lists, mc_type, mc_state):
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def handler(event, lists = lists,
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mc_type = mc_type, mc_state = mc_state,
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ishandlerrunning = self.ishandlerrunning,
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doafterhandler = self.doafterhandler):
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ishandlerrunning[:] = [True]
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event.mc_type = mc_type
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event.mc_state = mc_state
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wascalled = {}
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r = None
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for l in lists:
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for i in range(len(l)-1, -1, -1):
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func = l[i]
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if func not in wascalled:
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wascalled[func] = True
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r = l[i](event)
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if r:
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break
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if r:
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break
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ishandlerrunning[:] = []
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# Call all functions in doafterhandler and remove them from list
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while doafterhandler:
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doafterhandler.pop()()
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if r:
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return r
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return handler
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def __init__(self, type, widget, widgetinst):
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self.type = type
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self.typename = _types[type][0]
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self.widget = widget
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self.widgetinst = widgetinst
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self.bindedfuncs = {None: [[] for s in _states]}
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self.handlerids = []
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# we don't want to change the lists of functions while a handler is
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# running - it will mess up the loop and anyway, we usually want the
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# change to happen from the next event. So we have a list of functions
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# for the handler to run after it finishes calling the binded functions.
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# It calls them only once.
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# ishandlerrunning is a list. An empty one means no, otherwise - yes.
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# this is done so that it would be mutable.
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self.ishandlerrunning = []
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self.doafterhandler = []
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for s in _states:
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lists = [self.bindedfuncs[None][i] for i in _state_subsets[s]]
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handler = self.__create_handler(lists, type, _state_codes[s])
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seq = '<'+_state_names[s]+self.typename+'>'
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self.handlerids.append((seq, self.widget.bind(self.widgetinst,
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seq, handler)))
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def bind(self, triplet, func):
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if triplet[2] not in self.bindedfuncs:
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self.bindedfuncs[triplet[2]] = [[] for s in _states]
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for s in _states:
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lists = [ self.bindedfuncs[detail][i]
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for detail in (triplet[2], None)
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for i in _state_subsets[s] ]
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handler = self.__create_handler(lists, self.type,
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_state_codes[s])
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seq = "<%s%s-%s>"% (_state_names[s], self.typename, triplet[2])
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self.handlerids.append((seq, self.widget.bind(self.widgetinst,
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seq, handler)))
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doit = lambda: self.bindedfuncs[triplet[2]][triplet[0]].append(func)
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if not self.ishandlerrunning:
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doit()
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else:
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self.doafterhandler.append(doit)
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def unbind(self, triplet, func):
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doit = lambda: self.bindedfuncs[triplet[2]][triplet[0]].remove(func)
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if not self.ishandlerrunning:
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doit()
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else:
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self.doafterhandler.append(doit)
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def __del__(self):
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for seq, id in self.handlerids:
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self.widget.unbind(self.widgetinst, seq, id)
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# define the list of event types to be handled by MultiEvent. the order is
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# compatible with the definition of event type constants.
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_types = (
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("KeyPress", "Key"), ("KeyRelease",), ("ButtonPress", "Button"),
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("ButtonRelease",), ("Activate",), ("Circulate",), ("Colormap",),
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("Configure",), ("Deactivate",), ("Destroy",), ("Enter",), ("Expose",),
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("FocusIn",), ("FocusOut",), ("Gravity",), ("Leave",), ("Map",),
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("Motion",), ("MouseWheel",), ("Property",), ("Reparent",), ("Unmap",),
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("Visibility",),
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)
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# which binder should be used for every event type?
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_binder_classes = (_ComplexBinder,) * 4 + (_SimpleBinder,) * (len(_types)-4)
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# A dictionary to map a type name into its number
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_type_names = dict([(name, number)
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for number in range(len(_types))
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for name in _types[number]])
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_keysym_re = re.compile(r"^\w+$")
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_button_re = re.compile(r"^[1-5]$")
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def _parse_sequence(sequence):
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"""Get a string which should describe an event sequence. If it is
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successfully parsed as one, return a tuple containing the state (as an int),
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the event type (as an index of _types), and the detail - None if none, or a
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string if there is one. If the parsing is unsuccessful, return None.
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"""
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if not sequence or sequence[0] != '<' or sequence[-1] != '>':
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return None
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words = '-'.split(sequence[1:-1])
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modifiers = 0
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while words and words[0] in _modifier_names:
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modifiers |= 1 << _modifier_names[words[0]]
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del words[0]
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if words and words[0] in _type_names:
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type = _type_names[words[0]]
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del words[0]
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else:
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return None
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if _binder_classes[type] is _SimpleBinder:
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if modifiers or words:
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return None
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else:
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detail = None
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else:
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# _ComplexBinder
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if type in [_type_names[s] for s in ("KeyPress", "KeyRelease")]:
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type_re = _keysym_re
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else:
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type_re = _button_re
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if not words:
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detail = None
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elif len(words) == 1 and type_re.match(words[0]):
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detail = words[0]
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else:
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return None
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return modifiers, type, detail
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def _triplet_to_sequence(triplet):
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if triplet[2]:
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return '<'+_state_names[triplet[0]]+_types[triplet[1]][0]+'-'+ \
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triplet[2]+'>'
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else:
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return '<'+_state_names[triplet[0]]+_types[triplet[1]][0]+'>'
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_multicall_dict = {}
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def MultiCallCreator(widget):
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"""Return a MultiCall class which inherits its methods from the
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given widget class (for example, Tkinter.Text). This is used
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instead of a templating mechanism.
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"""
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if widget in _multicall_dict:
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return _multicall_dict[widget]
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class MultiCall (widget):
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assert issubclass(widget, Tkinter.Misc)
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def __init__(self, *args, **kwargs):
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widget.__init__(self, *args, **kwargs)
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# a dictionary which maps a virtual event to a tuple with:
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# 0. the function binded
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# 1. a list of triplets - the sequences it is binded to
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self.__eventinfo = {}
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self.__binders = [_binder_classes[i](i, widget, self)
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for i in range(len(_types))]
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|
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def bind(self, sequence=None, func=None, add=None):
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#print "bind(%s, %s, %s) called." % (sequence, func, add)
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if type(sequence) is str and len(sequence) > 2 and \
|
|
sequence[:2] == "<<" and sequence[-2:] == ">>":
|
|
if sequence in self.__eventinfo:
|
|
ei = self.__eventinfo[sequence]
|
|
if ei[0] is not None:
|
|
for triplet in ei[1]:
|
|
self.__binders[triplet[1]].unbind(triplet, ei[0])
|
|
ei[0] = func
|
|
if ei[0] is not None:
|
|
for triplet in ei[1]:
|
|
self.__binders[triplet[1]].bind(triplet, func)
|
|
else:
|
|
self.__eventinfo[sequence] = [func, []]
|
|
return widget.bind(self, sequence, func, add)
|
|
|
|
def unbind(self, sequence, funcid=None):
|
|
if type(sequence) is str and len(sequence) > 2 and \
|
|
sequence[:2] == "<<" and sequence[-2:] == ">>" and \
|
|
sequence in self.__eventinfo:
|
|
func, triplets = self.__eventinfo[sequence]
|
|
if func is not None:
|
|
for triplet in triplets:
|
|
self.__binders[triplet[1]].unbind(triplet, func)
|
|
self.__eventinfo[sequence][0] = None
|
|
return widget.unbind(self, sequence, funcid)
|
|
|
|
def event_add(self, virtual, *sequences):
|
|
#print "event_add(%s,%s) was called"%(repr(virtual),repr(sequences))
|
|
if virtual not in self.__eventinfo:
|
|
self.__eventinfo[virtual] = [None, []]
|
|
|
|
func, triplets = self.__eventinfo[virtual]
|
|
for seq in sequences:
|
|
triplet = _parse_sequence(seq)
|
|
if triplet is None:
|
|
#print >> sys.stderr, "Seq. %s was added by Tkinter."%seq
|
|
widget.event_add(self, virtual, seq)
|
|
else:
|
|
if func is not None:
|
|
self.__binders[triplet[1]].bind(triplet, func)
|
|
triplets.append(triplet)
|
|
|
|
def event_delete(self, virtual, *sequences):
|
|
if virtual not in self.__eventinfo:
|
|
return
|
|
func, triplets = self.__eventinfo[virtual]
|
|
for seq in sequences:
|
|
triplet = _parse_sequence(seq)
|
|
if triplet is None:
|
|
#print >> sys.stderr, "Seq. %s was deleted by Tkinter."%seq
|
|
widget.event_delete(self, virtual, seq)
|
|
else:
|
|
if func is not None:
|
|
self.__binders[triplet[1]].unbind(triplet, func)
|
|
triplets.remove(triplet)
|
|
|
|
def event_info(self, virtual=None):
|
|
if virtual is None or virtual not in self.__eventinfo:
|
|
return widget.event_info(self, virtual)
|
|
else:
|
|
return tuple(map(_triplet_to_sequence,
|
|
self.__eventinfo[virtual][1])) + \
|
|
widget.event_info(self, virtual)
|
|
|
|
def __del__(self):
|
|
for virtual in self.__eventinfo:
|
|
func, triplets = self.__eventinfo[virtual]
|
|
if func:
|
|
for triplet in triplets:
|
|
self.__binders[triplet[1]].unbind(triplet, func)
|
|
|
|
|
|
_multicall_dict[widget] = MultiCall
|
|
return MultiCall
|
|
|
|
if __name__ == "__main__":
|
|
# Test
|
|
root = Tkinter.Tk()
|
|
text = MultiCallCreator(Tkinter.Text)(root)
|
|
text.pack()
|
|
def bindseq(seq, n=[0]):
|
|
def handler(event):
|
|
print(seq)
|
|
text.bind("<<handler%d>>"%n[0], handler)
|
|
text.event_add("<<handler%d>>"%n[0], seq)
|
|
n[0] += 1
|
|
bindseq("<Key>")
|
|
bindseq("<Control-Key>")
|
|
bindseq("<Alt-Key-a>")
|
|
bindseq("<Control-Key-a>")
|
|
bindseq("<Alt-Control-Key-a>")
|
|
bindseq("<Key-b>")
|
|
bindseq("<Control-Button-1>")
|
|
bindseq("<Alt-Button-1>")
|
|
bindseq("<FocusOut>")
|
|
bindseq("<Enter>")
|
|
bindseq("<Leave>")
|
|
root.mainloop()
|