def itemRegion(self, index):
if not index.isValid() or not self.model():
return QRegion()
return QRegion()
# TODO: what to do with this code?
if index.column != 1:
return self.itemRect(index)
if self.model().data(index).toDouble()[0] <= 0.0:
return QRegion()
startAngle = 0.0
for row in xrange(self.model().rowCount(self.rootIndex())):
sliceIndex = self.model().index(row, 1, self.rootIndex())
value = self.model().data(sliceIndex).toDouble()[0]
if value > 0.0:
angle = 360*value/self.totalValue
if sliceIndex == index:
slicePath = QPainterPath()
slicePath.moveTo(self.totalSize/2, self.totalSize/2)
slicePath.arcTo(self.margin, self.margin,
self.margin+self.histogramSize,
self.margin+self.histogramSize,
startAngle, angle)
slicePath.closeSubpath()
return QRegion(slicePath.toFillPolygon().toPolygon())
startAngle += angle
return QRegion()
