mirror of https://github.com/lalbornoz/roar.git
112 lines
4.6 KiB
Python
112 lines
4.6 KiB
Python
#!/usr/bin/env python3
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#
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# MiRCARTCanvasJournal.py -- XXX
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# Copyright (c) 2018 Lucio Andrés Illanes Albornoz <lucio@lucioillanes.de>
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in all
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# copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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#
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class MiRCARTCanvasJournal():
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"""XXX"""
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parentCanvas = None
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patchesTmp = patchesUndo = patchesUndoLevel = None
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# {{{ _popTmp(self, eventDc, tmpDc): XXX
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def _popTmp(self, eventDc, tmpDc):
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if self.patchesTmp:
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for patch in self.patchesTmp:
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self.parentCanvas.onJournalUpdate(True, \
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patch[0], patch, eventDc, tmpDc, (0, 0), True)
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self.patchesTmp = []
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# }}}
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# {{{ _pushTmp(self, atPoint, patch): XXX
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def _pushTmp(self, absMapPoint):
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self.patchesTmp.append([absMapPoint, None, None, None])
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# }}}
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# {{{ _pushUndo(self, atPoint, patchUndo, patchRedo): XXX
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def _pushUndo(self, atPoint, patchUndo, patchRedo):
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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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absMapPoint = self._relMapPointToAbsMapPoint(patchUndo[0], atPoint)
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self.patchesUndo.insert(0, [ \
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[absMapPoint, *patchUndo[1:]], [absMapPoint, *patchRedo[1:]]])
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# }}}
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# {{{ _relMapPointToAbsMapPoint(self, relMapPoint, atPoint): XXX
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def _relMapPointToAbsMapPoint(self, relMapPoint, atPoint):
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return [a+b for a,b in zip(atPoint, relMapPoint)]
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# }}}
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# {{{ merge(self, mapPatches, eventDc, tmpDc, atPoint): XXX
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def merge(self, mapPatches, eventDc, tmpDc, atPoint):
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for mapPatch in mapPatches:
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mapPatchTmp = mapPatch[0]
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if mapPatchTmp:
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self._popTmp(eventDc, tmpDc)
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for patch in mapPatch[1]:
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absMapPoint = self._relMapPointToAbsMapPoint(patch[0], atPoint)
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if mapPatchTmp:
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self._pushTmp(absMapPoint)
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self.parentCanvas.onJournalUpdate(mapPatchTmp, \
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absMapPoint, patch, eventDc, tmpDc, atPoint)
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else:
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patchUndo = \
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self.parentCanvas.onJournalUpdate(mapPatchTmp, \
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absMapPoint, patch, eventDc, tmpDc, atPoint, True)
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self._pushUndo(atPoint, patchUndo, patch)
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# }}}
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# {{{ redo(self): XXX
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def redo(self):
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if self.patchesUndoLevel > 0:
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self.patchesUndoLevel -= 1
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redoPatch = self.patchesUndo[self.patchesUndoLevel][1]
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self.parentCanvas.onJournalUpdate(False, \
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redoPatch[0], redoPatch, None, None, (0, 0))
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return True
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else:
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return False
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# }}}
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# {{{ reset(self): XXX
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def reset(self):
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self.patchesTmp = []; self.patchesUndo = [None]; self.patchesUndoLevel = 0;
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# }}}
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# {{{ resetCursor(self, eventDc, tmpDc): XXX
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def resetCursor(self, eventDc, tmpDc):
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if len(self.patchesTmp):
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self._popTmp(eventDc, tmpDc)
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self.patchesTmp = []
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# }}}
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# {{{ undo(self): XXX
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def undo(self):
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if self.patchesUndo[self.patchesUndoLevel] != None:
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undoPatch = self.patchesUndo[self.patchesUndoLevel][0]
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self.patchesUndoLevel += 1
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self.parentCanvas.onJournalUpdate(False, \
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undoPatch[0], undoPatch, None, None, (0, 0))
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return True
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else:
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return False
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# }}}
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#
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# __init__(self, parentCanvas): initialisation method
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def __init__(self, parentCanvas):
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self.parentCanvas = parentCanvas; self.reset();
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# vim:expandtab foldmethod=marker sw=4 ts=4 tw=120
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