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MultiCall - a class which inherits its methods from a Tkinter widget (Text, for
example), but enables multiple calls of functions per virtual event - all
matching events will be called, not only the most specific one. This is done
by wrapping the event functions - event_add, event_delete and event_info.
MultiCall recognizes only a subset of legal event sequences. Sequences which
are not recognized are treated by the original Tk handling mechanism. A
more-specific event will be called before a less-specific event.
The recognized sequences are complete one-event sequences (no emacs-style
Ctrl-X Ctrl-C, no shortcuts like <3>), for all types of events.
Key/Button Press/Release events can have modifiers.
The recognized modifiers are Shift, Control, Option and Command for Mac, and
Control, Alt, Shift, Meta/M for other platforms.
For all events which were handled by MultiCall, a new member is added to the
event instance passed to the binded functions - mc_type. This is one of the
event type constants defined in this module (such as MC_KEYPRESS).
For Key/Button events (which are handled by MultiCall and may receive
modifiers), another member is added - mc_state. This member gives the state
of the recognized modifiers, as a combination of the modifier constants
also defined in this module (for example, MC_SHIFT).
Using these members is absolutely portable.
The order by which events are called is defined by these rules:
1. A more-specific event will be called before a less-specific event.
2. A recently-binded event will be called before a previously-binded event,
unless this conflicts with the first rule.
Each function will be called at most once for each event.
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Dƒ k rt } n t } | sd } n6 t | ƒ d k rH| j | d ƒ rH| d } n d S| | | f S( u- Get a string which should describe an event sequence. If it is
successfully parsed as one, return a tuple containing the state (as an int),
the event type (as an index of _types), and the detail - None if none, or a
string if there is one. If the parsing is unsuccessful, return None.
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0u _triplet_to_sequencec s> ˆ t k r t ˆ SG‡ f d d † d ˆ ƒ } | t ˆ <| S( u© Return a MultiCall class which inherits its methods from the
given widget class (for example, Tkinter.Text). This is used
instead of a templating mechanism.
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KeyRelease( u ButtonPressu Button( u
ButtonRelease( u Activate( u Circulate( u Colormap( u Configure( u
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MouseWheel( u Property( u Reparent( u Unmap( u
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MouseWheel( u Property( u Reparent( u Unmap( u
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MC_KEYRELEASEu MC_BUTTONPRESSu MC_BUTTONRELEASEu MC_ACTIVATEu MC_CIRCULATEu MC_COLORMAPu MC_CONFIGUREu
MC_DEACTIVATEu
MC_DESTROYu MC_ENTERu MC_EXPOSEu
MC_FOCUSINu MC_FOCUSOUTu
MC_GRAVITYu MC_LEAVEu MC_MAPu MC_MOTIONu
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MC_VISIBILITYu MC_SHIFTu
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