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https://github.com/lalbornoz/roar.git
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c81275bf2f
libcanvas/Canvas.py:_dispatchDeltaPatches(): handle `resize' delta patches.
libcanvas/Canvas.py:_dispatchPatch(): only commit to journal given commitUndo.
libcanvas/Canvas.py:resize(): commit `resize' & {deleted,added} cell deltas to journal.
libcanvas/Canvas.py: minor cleanup.
libcanvas/Canvas{Backend,{Export,Import}Store,Journal}.py: minor cleanup.
assets/text/arab-puke.txt: added from mircart/pack2/.
assets/text/TODO: updated.
80 lines
2.4 KiB
Python
80 lines
2.4 KiB
Python
#!/usr/bin/env python3
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#
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# CanvasJournal.py -- XXX
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# Copyright (c) 2018 Lucio Andrés Illanes Albornoz <lucio@lucioillanes.de>
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#
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class CanvasJournal():
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"""XXX"""
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# {{{ popCursor(self): XXX
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def popCursor(self):
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if len(self.patchesCursor):
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patchesCursor = self.patchesCursor
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self.patchesCursor = []
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return patchesCursor
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else:
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return []
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# }}}
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# {{{ popRedo(self): XXX
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def popRedo(self):
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if self.patchesUndoLevel > 0:
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self.patchesUndoLevel -= 1
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patches = self.patchesUndo[self.patchesUndoLevel]
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return patches[1]
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else:
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return []
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# }}}
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# {{{ popUndo(self): XXX
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def popUndo(self):
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if self.patchesUndo[self.patchesUndoLevel] != None:
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patches = self.patchesUndo[self.patchesUndoLevel]
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self.patchesUndoLevel += 1
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return patches[0]
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else:
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return []
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# }}}
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# {{{ pushCursor(self, patches): XXX
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def pushCursor(self, patches):
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self.patchesCursor.append(patches)
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# }}}
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# {{{ pushDeltas(self, undoPatches, redoPatches): XXX
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def pushDeltas(self, undoPatches, redoPatches):
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if self.patchesUndoLevel > 0:
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del self.patchesUndo[0:self.patchesUndoLevel]
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self.patchesUndoLevel = 0
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deltaItem = [undoPatches, redoPatches]
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self.patchesUndo.insert(0, deltaItem)
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return deltaItem
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# }}}
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# {{{ resetCursor(self): XXX
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def resetCursor(self):
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if self.patchesCursor != None:
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self.patchesCursor.clear()
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self.patchesCursor = []
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# }}}
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# {{{ resetUndo(self): XXX
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def resetUndo(self):
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if self.patchesUndo != None:
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self.patchesUndo.clear()
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self.patchesUndo = [None]; self.patchesUndoLevel = 0;
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# }}}
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# {{{ updateCurrentDeltas(self, undoPatches, redoPatches): XXX
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def updateCurrentDeltas(self, undoPatches, redoPatches):
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self.patchesUndo[0][0].append(undoPatches)
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self.patchesUndo[0][1].append(redoPatches)
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# }}}
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# {{{ __del__(self): destructor method
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def __del__(self):
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self.resetCursor(); self.resetUndo();
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# }}}
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#
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# __init__(self): initialisation method
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def __init__(self):
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self.patchesCursor, self.patchesUndo, self. patchesUndoLevel = None, None, None
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self.resetCursor(); self.resetUndo();
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# vim:expandtab foldmethod=marker sw=4 ts=4 tw=120
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