mirror of https://github.com/lalbornoz/roar.git
74 lines
2.4 KiB
Python
74 lines
2.4 KiB
Python
#!/usr/bin/env python3
|
|
#
|
|
# CanvasJournal.py -- XXX
|
|
# Copyright (c) 2018, 2019 Lucio Andrés Illanes Albornoz <lucio@lucioillanes.de>
|
|
#
|
|
|
|
class CanvasJournal():
|
|
"""XXX"""
|
|
|
|
# {{{ popCursor(self): XXX
|
|
def popCursor(self):
|
|
if len(self.patchesCursor):
|
|
patchesCursor = self.patchesCursor; self.patchesCursor = [];
|
|
return patchesCursor
|
|
else:
|
|
return []
|
|
# }}}
|
|
# {{{ popRedo(self): XXX
|
|
def popRedo(self):
|
|
if self.patchesUndoLevel > 0:
|
|
self.patchesUndoLevel -= 1; patches = self.patchesUndo[self.patchesUndoLevel];
|
|
return patches[1]
|
|
else:
|
|
return []
|
|
# }}}
|
|
# {{{ popUndo(self): XXX
|
|
def popUndo(self):
|
|
if self.patchesUndo[self.patchesUndoLevel] != None:
|
|
patches = self.patchesUndo[self.patchesUndoLevel]; self.patchesUndoLevel += 1;
|
|
return patches[0]
|
|
else:
|
|
return []
|
|
# }}}
|
|
# {{{ pushCursor(self, patches): XXX
|
|
def pushCursor(self, patches):
|
|
self.patchesCursor.append(patches)
|
|
# }}}
|
|
# {{{ pushDeltas(self, redoPatches, undoPatches): XXX
|
|
def pushDeltas(self, redoPatches, undoPatches):
|
|
if self.patchesUndoLevel > 0:
|
|
del self.patchesUndo[0:self.patchesUndoLevel]; self.patchesUndoLevel = 0;
|
|
deltaItem = [undoPatches, redoPatches]; self.patchesUndo.insert(0, deltaItem);
|
|
return deltaItem
|
|
# }}}
|
|
# {{{ resetCursor(self): XXX
|
|
def resetCursor(self):
|
|
if self.patchesCursor != None:
|
|
self.patchesCursor.clear()
|
|
self.patchesCursor = []
|
|
# }}}
|
|
# {{{ resetUndo(self): XXX
|
|
def resetUndo(self):
|
|
if self.patchesUndo != None:
|
|
self.patchesUndo.clear()
|
|
self.patchesUndo = [None]; self.patchesUndoLevel = 0;
|
|
# }}}
|
|
# {{{ updateCurrentDeltas(self, redoPatches, undoPatches): XXX
|
|
def updateCurrentDeltas(self, redoPatches, undoPatches):
|
|
self.patchesUndo[0][0].append(undoPatches); self.patchesUndo[0][1].append(redoPatches);
|
|
# }}}
|
|
|
|
# {{{ __del__(self): destructor method
|
|
def __del__(self):
|
|
self.resetCursor(); self.resetUndo();
|
|
# }}}
|
|
|
|
#
|
|
# __init__(self): initialisation method
|
|
def __init__(self):
|
|
self.patchesCursor, self.patchesUndo, self. patchesUndoLevel = None, None, None
|
|
self.resetCursor(); self.resetUndo();
|
|
|
|
# vim:expandtab foldmethod=marker sw=4 ts=4 tw=120
|