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| 1 | +# |
| 2 | +# tkvirtevent.rb : treats virtual events |
| 3 | +# 1998/07/16 by Hidetoshi Nagai <nagai@ai.kyutech.ac.jp> |
| 4 | +# |
| 5 | +require 'tk' |
| 6 | + |
| 7 | +class TkVirtualEvent<TkObject |
| 8 | + extend Tk |
| 9 | + |
| 10 | + TkVirturlEventID = [0] |
| 11 | + TkVirturlEventTBL = {} |
| 12 | + |
| 13 | + def TkVirtualEvent.getobj(event) |
| 14 | + obj = TkVirturlEventTBL[event] |
| 15 | + obj ? obj : event |
| 16 | + end |
| 17 | + |
| 18 | + def TkVirtualEvent.info |
| 19 | + tk_call('event', 'info').split(/\s+/).filter{|seq| |
| 20 | + TkVirtualEvent.getobj(seq[1..-2]) |
| 21 | + } |
| 22 | + end |
| 23 | + |
| 24 | + def initialize(*sequences) |
| 25 | + @path = @id = format("<VirtEvent%.4d>", TkVirturlEventID[0]) |
| 26 | + TkVirturlEventID[0] += 1 |
| 27 | + add(*sequences) |
| 28 | + end |
| 29 | + |
| 30 | + def add(*sequences) |
| 31 | + if sequences != [] |
| 32 | + tk_call('event', 'add', "<#{@id}>", |
| 33 | + *(sequences.collect{|seq| "<#{tk_event_sequence(seq)}>"}) ) |
| 34 | + TkVirturlEventTBL[@id] = self |
| 35 | + end |
| 36 | + self |
| 37 | + end |
| 38 | + |
| 39 | + def delete(*sequences) |
| 40 | + if sequences == [] |
| 41 | + tk_call('event', 'delete', "<#{@id}>") |
| 42 | + TkVirturlEventTBL[@id] = nil |
| 43 | + else |
| 44 | + tk_call('event', 'delete', "<#{@id}>", |
| 45 | + *(sequences.collect{|seq| "<#{tk_event_sequence(seq)}>"}) ) |
| 46 | + TkVirturlEventTBL[@id] = nil if info == [] |
| 47 | + end |
| 48 | + self |
| 49 | + end |
| 50 | + |
| 51 | + def info |
| 52 | + tk_call('event', 'info', "<#{@id}>").split(/\s+/).filter{|seq| |
| 53 | + l = seq.scan(/<*[^<>]+>*/).filter{|subseq| |
| 54 | + case (subseq) |
| 55 | + when /^<<[^<>]+>>$/ |
| 56 | + TkVirtualEvent.getobj(subseq[1..-2]) |
| 57 | + when /^<[^<>]+>$/ |
| 58 | + subseq[1..-2] |
| 59 | + else |
| 60 | + subseq.split('') |
| 61 | + end |
| 62 | + }.flatten |
| 63 | + (l.size == 1) ? l[0] : l |
| 64 | + } |
| 65 | + end |
| 66 | +end |
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