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draw in-progress lines to snap point

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This commit is contained in:
Josh Holtrop 2011-07-28 19:53:01 -04:00
parent 84f1e6585b
commit f489d11a57
1 changed files with 30 additions and 26 deletions
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14
SketchWidget.py
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@ -416,8 +416,14 @@ class SketchWidget:
self.queue_redraw() self.queue_redraw()
def do_line_motion(self, x, y): def do_line_motion(self, x, y):
snap_ptref = self.get_closest_snap_ptref(x, y)
self.update_hover_snap_point(snap_ptref)
if self.drawingShape is not None: if self.drawingShape is not None:
this_pt = self.screenPtToPt((x, self.size[1] - y)) this_pt = self.screenPtToPt((x, self.size[1] - y))
if snap_ptref is not None:
this_pt = snap_ptref.getPt()
self.drawingConstraints['hv'] = None
else:
start = self.drawingShape.getPt(0) start = self.drawingShape.getPt(0)
angle = math.atan2(this_pt[1] - start[1], this_pt[0] - start[0]) angle = math.atan2(this_pt[1] - start[1], this_pt[0] - start[0])
angle *= 180.0 / math.pi angle *= 180.0 / math.pi
@ -430,7 +436,8 @@ class SketchWidget:
if not ('hv' in self.drawingConstraints if not ('hv' in self.drawingConstraints
and isinstance(self.drawingConstraints['hv'], and isinstance(self.drawingConstraints['hv'],
Horizontal)): Horizontal)):
c = Horizontal(self.drawingShape, 0, self.drawingShape, 1) c = Horizontal(
self.drawingShape, 0, self.drawingShape, 1)
self.drawingConstraints['hv'] = c self.drawingConstraints['hv'] = c
elif ((snaps_to(-90) or snaps_to(90)) elif ((snaps_to(-90) or snaps_to(90))
and within(start[0], this_pt[0], hv_snap_dist)): and within(start[0], this_pt[0], hv_snap_dist)):
@ -441,12 +448,9 @@ class SketchWidget:
c = Vertical(self.drawingShape, 0, self.drawingShape, 1) c = Vertical(self.drawingShape, 0, self.drawingShape, 1)
self.drawingConstraints['hv'] = c self.drawingConstraints['hv'] = c
else: else:
if 'hv' in self.drawingConstraints: self.drawingConstraints['hv'] = None
del self.drawingConstraints['hv']
self.drawingShape.setPt(1, this_pt) self.drawingShape.setPt(1, this_pt)
self.queue_redraw() self.queue_redraw()
sp = self.get_closest_snap_ptref(x, y)
self.update_hover_snap_point(sp)
def do_circle_left_click(self, x, y): def do_circle_left_click(self, x, y):
pt = self.screenPtToPt((x, self.size[1] - y)) pt = self.screenPtToPt((x, self.size[1] - y))