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fix: mouse wheel on viewbox leaves autorange unaffected if mouse is disabled for one axis

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This commit is contained in:
Luke Campagnola 2018-07-10 05:23:53 -07:00
parent 809704ac45
commit 585390e16e
1 changed files with 13 additions and 21 deletions
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34
pyqtgraph/graphicsItems/ViewBox/ViewBox.py
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@ -662,21 +662,13 @@ class ViewBox(GraphicsWidget):
cause slight changes due to floating-point error).
"""
if s is not None:
scale = Point(s)
else:
scale = [x, y]
x, y = s[0], s[1]
affect = [True, True]
if scale[0] is None and scale[1] is None:
affect = [x is not None, y is not None]
if not any(affect):
return
elif scale[0] is None:
affect[0] = False
scale[0] = 1.0
elif scale[1] is None:
affect[1] = False
scale[1] = 1.0
scale = Point(scale)
scale = Point([1.0 if x is None else x, 1.0 if y is None else y])
if self.state['aspectLocked'] is not False:
scale[0] = scale[1]
@ -1132,19 +1124,19 @@ class ViewBox(GraphicsWidget):
"""Return the bounding rect of the item in view coordinates"""
return self.mapSceneToView(item.sceneBoundingRect()).boundingRect()
def wheelEvent(self, ev, axis=None):
mask = np.array(self.state['mouseEnabled'], dtype=np.float)
def wheelEvent(self, ev, axis=None):
if axis is not None and axis >= 0 and axis < len(mask):
mv = mask[axis]
mask[:] = 0
mask[axis] = mv
s = ((mask * 0.02) + 1) ** (ev.delta() * self.state['wheelScaleFactor']) # actual scaling factor
mask = [False, False]
mask[axis] = self.state['mouseEnabled'][axis]
else:
mask = self.state['mouseEnabled'][:]
s = 1.02 ** (ev.delta() * self.state['wheelScaleFactor']) # actual scaling factor
s = [(None if m is False else s) for m in mask]
center = Point(fn.invertQTransform(self.childGroup.transform()).map(ev.pos()))
self._resetTarget()
self.scaleBy(s, center)
self.sigRangeChangedManually.emit(self.state['mouseEnabled'])
self.sigRangeChangedManually.emit(mask)
ev.accept()
def mouseClickEvent(self, ev):