Lines Matching refs:self
25 def __init__(self):
26 Delegator.__init__(self)
27 self.reset_undo()
29 def setdelegate(self, delegate):
30 if self.delegate is not None:
31 self.unbind("<<undo>>")
32 self.unbind("<<redo>>")
33 self.unbind("<<dump-undo-state>>")
34 Delegator.setdelegate(self, delegate)
36 self.bind("<<undo>>", self.undo_event)
37 self.bind("<<redo>>", self.redo_event)
38 self.bind("<<dump-undo-state>>", self.dump_event)
40 def dump_event(self, event):
42 pprint(self.undolist[:self.pointer])
43 print("pointer:", self.pointer, end=' ')
44 print("saved:", self.saved, end=' ')
45 print("can_merge:", self.can_merge, end=' ')
46 print("get_saved():", self.get_saved())
47 pprint(self.undolist[self.pointer:])
50 def reset_undo(self):
51 self.was_saved = -1
52 self.pointer = 0
53 self.undolist = []
54 self.undoblock = 0 # or a CommandSequence instance
55 self.set_saved(1)
57 def set_saved(self, flag):
59 self.saved = self.pointer
61 self.saved = -1
62 self.can_merge = False
63 self.check_saved()
65 def get_saved(self):
66 return self.saved == self.pointer
70 def set_saved_change_hook(self, hook):
71 self.saved_change_hook = hook
75 def check_saved(self):
76 is_saved = self.get_saved()
77 if is_saved != self.was_saved:
78 self.was_saved = is_saved
79 if self.saved_change_hook:
80 self.saved_change_hook()
82 def insert(self, index, chars, tags=None):
83 self.addcmd(InsertCommand(index, chars, tags))
85 def delete(self, index1, index2=None):
86 self.addcmd(DeleteCommand(index1, index2))
99 def undo_block_start(self):
100 if self.undoblock == 0:
101 self.undoblock = CommandSequence()
102 self.undoblock.bump_depth()
104 def undo_block_stop(self):
105 if self.undoblock.bump_depth(-1) == 0:
106 cmd = self.undoblock
107 self.undoblock = 0
114 self.addcmd(cmd, 0)
116 def addcmd(self, cmd, execute=True):
118 cmd.do(self.delegate)
119 if self.undoblock != 0:
120 self.undoblock.append(cmd)
122 if self.can_merge and self.pointer > 0:
123 lastcmd = self.undolist[self.pointer-1]
126 self.undolist[self.pointer:] = [cmd]
127 if self.saved > self.pointer:
128 self.saved = -1
129 self.pointer = self.pointer + 1
130 if len(self.undolist) > self.max_undo:
132 del self.undolist[0]
133 self.pointer = self.pointer - 1
134 if self.saved >= 0:
135 self.saved = self.saved - 1
136 self.can_merge = True
137 self.check_saved()
139 def undo_event(self, event):
140 if self.pointer == 0:
141 self.bell()
143 cmd = self.undolist[self.pointer - 1]
144 cmd.undo(self.delegate)
145 self.pointer = self.pointer - 1
146 self.can_merge = False
147 self.check_saved()
150 def redo_event(self, event):
151 if self.pointer >= len(self.undolist):
152 self.bell()
154 cmd = self.undolist[self.pointer]
155 cmd.redo(self.delegate)
156 self.pointer = self.pointer + 1
157 self.can_merge = False
158 self.check_saved()
167 def __init__(self, index1, index2, chars, tags=None):
168 self.marks_before = {}
169 self.marks_after = {}
170 self.index1 = index1
171 self.index2 = index2
172 self.chars = chars
174 self.tags = tags
176 def __repr__(self):
177 s = self.__class__.__name__
178 t = (self.index1, self.index2, self.chars, self.tags)
179 if self.tags is None:
183 def do(self, text):
186 def redo(self, text):
189 def undo(self, text):
192 def merge(self, cmd):
195 def save_marks(self, text):
202 def set_marks(self, text, marks):
210 def __init__(self, index1, chars, tags=None):
211 Command.__init__(self, index1, None, chars, tags)
213 def do(self, text):
214 self.marks_before = self.save_marks(text)
215 self.index1 = text.index(self.index1)
216 if text.compare(self.index1, ">", "end-1c"):
218 self.index1 = text.index("end-1c")
219 text.insert(self.index1, self.chars, self.tags)
220 self.index2 = text.index("%s+%dc" % (self.index1, len(self.chars)))
221 self.marks_after = self.save_marks(text)
222 ##sys.__stderr__.write("do: %s\n" % self)
224 def redo(self, text):
225 text.mark_set('insert', self.index1)
226 text.insert(self.index1, self.chars, self.tags)
227 self.set_marks(text, self.marks_after)
229 ##sys.__stderr__.write("redo: %s\n" % self)
231 def undo(self, text):
232 text.mark_set('insert', self.index1)
233 text.delete(self.index1, self.index2)
234 self.set_marks(text, self.marks_before)
236 ##sys.__stderr__.write("undo: %s\n" % self)
238 def merge(self, cmd):
239 if self.__class__ is not cmd.__class__:
241 if self.index2 != cmd.index1:
243 if self.tags != cmd.tags:
247 if self.chars and \
248 self.classify(self.chars[-1]) != self.classify(cmd.chars):
250 self.index2 = cmd.index2
251 self.chars = self.chars + cmd.chars
256 def classify(self, c):
257 if c in self.alphanumeric:
267 def __init__(self, index1, index2=None):
268 Command.__init__(self, index1, index2, None, None)
270 def do(self, text):
271 self.marks_before = self.save_marks(text)
272 self.index1 = text.index(self.index1)
273 if self.index2:
274 self.index2 = text.index(self.index2)
276 self.index2 = text.index(self.index1 + " +1c")
277 if text.compare(self.index2, ">", "end-1c"):
279 self.index2 = text.index("end-1c")
280 self.chars = text.get(self.index1, self.index2)
281 text.delete(self.index1, self.index2)
282 self.marks_after = self.save_marks(text)
283 ##sys.__stderr__.write("do: %s\n" % self)
285 def redo(self, text):
286 text.mark_set('insert', self.index1)
287 text.delete(self.index1, self.index2)
288 self.set_marks(text, self.marks_after)
290 ##sys.__stderr__.write("redo: %s\n" % self)
292 def undo(self, text):
293 text.mark_set('insert', self.index1)
294 text.insert(self.index1, self.chars)
295 self.set_marks(text, self.marks_before)
297 ##sys.__stderr__.write("undo: %s\n" % self)
304 def __init__(self):
305 self.cmds = []
306 self.depth = 0
308 def __repr__(self):
309 s = self.__class__.__name__
311 for cmd in self.cmds:
315 def __len__(self):
316 return len(self.cmds)
318 def append(self, cmd):
319 self.cmds.append(cmd)
321 def getcmd(self, i):
322 return self.cmds[i]
324 def redo(self, text):
325 for cmd in self.cmds:
328 def undo(self, text):
329 cmds = self.cmds[:]
334 def bump_depth(self, incr=1):
335 self.depth = self.depth + incr
336 return self.depth