roar/libtools/ToolErase.py

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#!/usr/bin/env python3
#
# ToolErase.py
# Copyright (c) 2018, 2019 Lucio Andrés Illanes Albornoz <lucio@lucioillanes.de>
#
from Tool import Tool
class ToolErase(Tool):
name = "Erase"
#
# onMouseEvent(self, atPoint, brushColours, brushPos, brushSize, canvas, dispatchFn, eventDc, keyModifiers, mapPoint, mouseDragging, mouseLeftDown, mouseRightDown)
def onMouseEvent(self, atPoint, brushColours, brushPos, brushSize, canvas, dispatchFn, eventDc, keyModifiers, mapPoint, mouseDragging, mouseLeftDown, mouseRightDown):
brushColours, brushSize, dirty = list(brushColours), list(brushSize), False
if brushSize[0] > 1:
brushSize[0] *= 2
for brushRow in range(brushSize[1]):
for brushCol in range(brushSize[0]):
if mouseLeftDown:
patch = [mapPoint[0] + brushCol, mapPoint[1] + brushRow, brushColours[1], brushColours[1], 0, " "]
if not dirty:
dirty = True
dispatchFn(eventDc, False, patch); dispatchFn(eventDc, True, patch);
elif mouseRightDown \
and ((mapPoint[0] + brushCol) < canvas.size[0]) \
and ((mapPoint[1] + brushRow) < canvas.size[1]) \
and (canvas.map[mapPoint[1] + brushRow][mapPoint[0] + brushCol][1] == brushColours[1]):
patch = [mapPoint[0] + brushCol, mapPoint[1] + brushRow, canvas.map[mapPoint[1] + brushRow][mapPoint[0] + brushCol][0], brushColours[0], *canvas.map[mapPoint[1] + brushRow][mapPoint[0] + brushCol][2:]]
if not dirty:
dirty = True
dispatchFn(eventDc, False, patch); dispatchFn(eventDc, True, patch);
else:
patch = [mapPoint[0] + brushCol, mapPoint[1] + brushRow, brushColours[1], brushColours[1], 0, " "]
dispatchFn(eventDc, True, patch)
return True, dirty
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