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Coarse grain mouse input with lattice

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This commit is contained in:
Ian Jauslin 2024-02-26 10:01:50 -05:00
parent a152af6bac
commit 5864dc5c06
1 changed files with 10 additions and 3 deletions
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13
src/painter.py
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@ -315,6 +315,9 @@ class Painter(Widget):
# record relative position of click with respect to reference # record relative position of click with respect to reference
if self.undermouse!=None: if self.undermouse!=None:
self.offset=Point(touchx,touchy)-self.undermouse.elements[0].pos self.offset=Point(touchx,touchy)-self.undermouse.elements[0].pos
# snap to lattice
if self.lattice!=None:
self.offset=self.lattice.nearest(self.offset)
# no modifiers # no modifiers
if self.modifiers==[]: if self.modifiers==[]:
@ -361,13 +364,17 @@ class Painter(Widget):
# only respond to touch in drawing area # only respond to touch in drawing area
if self.collide_point(*touch.pos): if self.collide_point(*touch.pos):
# convert to logical # convert to logical
touchx=self.coord_topos_x(touch.x) touchc=Point(self.coord_topos_x(touch.x),self.coord_topos_y(touch.y))
touchy=self.coord_topos_y(touch.y)
# snap to lattice
if self.lattice!=None:
touchc=self.lattice.nearest(touchc)
# only move on left click # only move on left click
if touch.button=="left" and self.modifiers==[] and self.undermouse!=None: if touch.button=="left" and self.modifiers==[] and self.undermouse!=None:
# attempted move determined by the relative position to the relative position of click within self.undermouse # attempted move determined by the relative position to the relative position of click within self.undermouse
delta=self.adjust_move(Point(touchx,touchy)-(self.offset+self.undermouse.elements[0].pos),0) delta=self.adjust_move(touchc-(self.offset+self.undermouse.elements[0].pos),0)
# snap to lattice # snap to lattice
if self.lattice!=None: if self.lattice!=None: