ASCEE/pyqtgraph
5
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Fixed ViewBox not updating immediately after call to setAspectLocked

Browse Source
This commit is contained in:
Luke Campagnola 2013-11-21 07:56:30 -05:00
parent 193b1097b2
commit a972114b4f
1 changed files with 11 additions and 47 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

58
pyqtgraph/graphicsItems/ViewBox/ViewBox.py
View File

@ -933,6 +933,9 @@ class ViewBox(GraphicsWidget):
"""
By default, the positive y-axis points upward on the screen. Use invertY(True) to reverse the y-axis.
"""
if self.state['yInverted'] == b:
return
self.state['yInverted'] = b
#self.updateMatrix(changed=(False, True))
self.updateViewRange()
@ -947,7 +950,10 @@ class ViewBox(GraphicsWidget):
By default, the ratio is set to 1; x and y both have the same scaling.
This ratio can be overridden (xScale/yScale), or use None to lock in the current ratio.
"""
if not lock:
if self.state['aspectLocked'] == False:
return
self.state['aspectLocked'] = False
else:
rect = self.rect()
@ -958,10 +964,15 @@ class ViewBox(GraphicsWidget):
currentRatio = (rect.width()/float(rect.height())) / (vr.width()/vr.height())
if ratio is None:
ratio = currentRatio
if self.state['aspectLocked'] == ratio: # nothing to change
return
self.state['aspectLocked'] = ratio
if ratio != currentRatio: ## If this would change the current range, do that now
#self.setRange(0, self.state['viewRange'][0][0], self.state['viewRange'][0][1])
self.updateViewRange()
self.updateAutoRange()
self.updateViewRange()
self.sigStateChanged.emit(self)
def childTransform(self):
@ -1332,7 +1343,6 @@ class ViewBox(GraphicsWidget):
## Update viewRange to match targetRange as closely as possible, given
## aspect ratio constraints. The *force* arguments are used to indicate
## which axis (if any) should be unchanged when applying constraints.
viewRange = [self.state['targetRange'][0][:], self.state['targetRange'][1][:]]
changed = [False, False]
@ -1399,46 +1409,8 @@ class ViewBox(GraphicsWidget):
def updateMatrix(self, changed=None):
## Make the childGroup's transform match the requested viewRange.
#print self.name, "updateMAtrix", self.state['targetRange']
#if changed is None:
#changed = [False, False]
#changed = list(changed)
#tr = self.targetRect()
bounds = self.rect()
## set viewRect, given targetRect and possibly aspect ratio constraint
#self.state['viewRange'] = [self.state['targetRange'][0][:], self.state['targetRange'][1][:]]
#aspect = self.state['aspectLocked']
#if aspect is False or bounds.height() == 0:
#self.state['viewRange'] = [self.state['targetRange'][0][:], self.state['targetRange'][1][:]]
#else:
### aspect is (widget w/h) / (view range w/h)
### This is the view range aspect ratio we have requested
#targetRatio = tr.width() / tr.height()
### This is the view range aspect ratio we need to obey aspect constraint
#viewRatio = (bounds.width() / bounds.height()) / aspect
#if targetRatio > viewRatio:
### view range needs to be taller than target
#dy = 0.5 * (tr.width() / viewRatio - tr.height())
#if dy != 0:
#changed[1] = True
#self.state['viewRange'] = [
#self.state['targetRange'][0][:],
#[self.state['targetRange'][1][0] - dy, self.state['targetRange'][1][1] + dy]
#]
#else:
### view range needs to be wider than target
#dx = 0.5 * (tr.height() * viewRatio - tr.width())
#if dx != 0:
#changed[0] = True
#self.state['viewRange'] = [
#[self.state['targetRange'][0][0] - dx, self.state['targetRange'][0][1] + dx],
#self.state['targetRange'][1][:]
#]
vr = self.viewRect()
if vr.height() == 0 or vr.width() == 0:
return
@ -1458,14 +1430,6 @@ class ViewBox(GraphicsWidget):
self.childGroup.setTransform(m)
# moved to viewRangeChanged
#if changed[0]:
#self.sigXRangeChanged.emit(self, tuple(self.state['viewRange'][0]))
#if changed[1]:
#self.sigYRangeChanged.emit(self, tuple(self.state['viewRange'][1]))
#if any(changed):
#self.sigRangeChanged.emit(self, self.state['viewRange'])
self.sigTransformChanged.emit(self) ## segfaults here: 1
self._matrixNeedsUpdate = False