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Implements invert colours operator.
liboperators/OperatorInvert.py: initial implementation. libroar/RoarCanvasCommandsOperators.py: adds OperatorInvert. assets/text/TODO: updated.
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@ -11,7 +11,7 @@
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High-priority list:
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1) unit tools: arrow, {cloud,speech bubble}, curve, measure, pick, polygon, triangle, unicode
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2) text tool: a) honour RTL text flow b) navigating w/ cursor keys c) pasting text
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3) operators: erase, invert, rotate, scale, shift, slice, tile
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3) operators: erase, rotate, scale, shift, slice, tile
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4) GUI:
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a) switch to GTK
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b) replace logo w/ canvas panel in About dialogue
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24
liboperators/OperatorInvert.py
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24
liboperators/OperatorInvert.py
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@ -0,0 +1,24 @@
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#!/usr/bin/env python3
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#
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# OperatorInvert.py
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# Copyright (c) 2018, 2019 Lucio Andrés Illanes Albornoz <lucio@lucioillanes.de>
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#
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from Operator import Operator
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class OperatorInvert(Operator):
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name = "Invert colours"
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#
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# apply(self, region)
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def apply(self, region):
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for numRow in range(len(region)):
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for numCol in range(len(region[numRow])):
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region[numRow][numCol][0:2] = [(~r & (16 - 1) if r > 0 else r) for r in region[numRow][numCol][0:2]]
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return region
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# __init__(self, *args): initialisation method
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def __init__(self, *args):
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pass
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# vim:expandtab foldmethod=marker sw=4 ts=4 tw=120
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@ -6,6 +6,7 @@
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from OperatorFlipHorizontal import OperatorFlipHorizontal
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from OperatorFlipVertical import OperatorFlipVertical
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from OperatorInvert import OperatorInvert
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from GuiFrame import GuiCommandListDecorator
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from ToolObject import ToolObject
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import copy, wx
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@ -14,9 +15,10 @@ class RoarCanvasCommandsOperators():
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# {{{ canvasOperator(self, f, idx)
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@GuiCommandListDecorator(0, "Flip", "&Flip", None, None, None)
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@GuiCommandListDecorator(1, "Flip horizontally", "Flip &horizontally", None, None, None)
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@GuiCommandListDecorator(2, "Invert", "&Invert", None, None, None)
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def canvasOperator(self, f, idx):
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def canvasOperator_(event):
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applyOperator = [OperatorFlipVertical, OperatorFlipHorizontal][idx]()
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applyOperator = [OperatorFlipVertical, OperatorFlipHorizontal, OperatorInvert][idx]()
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if (self.currentTool.__class__ == ToolObject) \
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and (self.currentTool.toolState >= self.currentTool.TS_SELECT):
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region = self.currentTool.getRegion(self.parentCanvas.canvas)
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@ -56,7 +58,7 @@ class RoarCanvasCommandsOperators():
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def __init__(self):
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self.menus = (
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("&Operators",
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self.canvasOperator(self.canvasOperator, 0), self.canvasOperator(self.canvasOperator, 1),
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self.canvasOperator(self.canvasOperator, 0), self.canvasOperator(self.canvasOperator, 1), self.canvasOperator(self.canvasOperator, 2),
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),
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)
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self.toolBars = ()
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