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101 lines
4.2 KiB
Python
101 lines
4.2 KiB
Python
#!/usr/bin/env python3
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#
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# MiRCARTToolLine.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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from MiRCARTTool import MiRCARTTool
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class MiRCARTToolLine(MiRCARTTool):
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"""XXX"""
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toolOriginPoint = toolState = None
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TS_NONE = 0
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TS_ORIGIN = 1
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# {{{ _pointDelta(self, a, b): XXX
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def _pointDelta(self, a, b):
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return [a2-a1 for a1, a2 in zip(a, b)]
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# }}}
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# {{{ _pointSwap(self, a, b): XXX
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def _pointSwap(self, a, b):
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return [b, a]
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# }}}
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# {{{ _getLine(self, brushColours, originPoint, targetPoint): XXX
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def _getLine(self, brushColours, originPoint, targetPoint):
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originPoint = originPoint.copy(); targetPoint = targetPoint.copy();
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pointDelta = self._pointDelta(originPoint, targetPoint)
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lineXSign = 1 if pointDelta[0] > 0 else -1;
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lineYSign = 1 if pointDelta[1] > 0 else -1;
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pointDelta = [abs(a) for a in pointDelta]
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if pointDelta[0] > pointDelta[1]:
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lineXX, lineXY, lineYX, lineYY = lineXSign, 0, 0, lineYSign
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else:
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pointDelta = [pointDelta[1], pointDelta[0]]
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lineXX, lineXY, lineYX, lineYY = 0, lineYSign, lineXSign, 0
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lineD = 2 * pointDelta[1] - pointDelta[0]; lineY = 0;
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linePatches = []
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for lineX in range(pointDelta[0] + 1):
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linePatches.append([[ \
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originPoint[0] + lineX*lineXX + lineY*lineYX, \
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originPoint[1] + lineX*lineXY + lineY*lineYY], \
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brushColours, 0, " "])
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if lineD > 0:
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lineD -= pointDelta[0]; lineY += 1;
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lineD += pointDelta[1]
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return linePatches
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# }}}
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#
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# onMouseEvent(self, event, atPoint, brushColours, brushSize, isDragging, isLeftDown, isRightDown): XXX
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def onMouseEvent(self, event, atPoint, brushColours, brushSize, isDragging, isLeftDown, isRightDown):
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brushColours = brushColours.copy()
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if isLeftDown:
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brushColours[1] = brushColours[0]
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elif isRightDown:
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brushColours[0] = brushColours[1]
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else:
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brushColours[1] = brushColours[0]
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brushPatches = []; tmpPatches = [];
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if self.toolState == self.TS_NONE:
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if isLeftDown or isRightDown:
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self.toolOriginPoint = list(atPoint)
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self.toolState = self.TS_ORIGIN
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tmpPatches.append([atPoint, brushColours, 0, " "])
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return [[True, tmpPatches]]
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elif self.toolState == self.TS_ORIGIN:
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targetPoint = list(atPoint)
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originPoint = self.toolOriginPoint
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brushPatches = self._getLine(brushColours, originPoint, targetPoint)
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if isLeftDown or isRightDown:
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self.toolState = self.TS_NONE
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return [[False, brushPatches], [True, brushPatches]]
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else:
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return [[True, brushPatches]]
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# __init__(self, *args): initialisation method
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def __init__(self, *args):
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super().__init__(*args)
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self.toolOriginPoint = None
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self.toolState = self.TS_NONE
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# vim:expandtab foldmethod=marker sw=4 ts=4 tw=120
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