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[Fix] bug in set price range

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This commit is contained in:
vn.py 2019-07-17 15:51:05 +08:00
parent 35d9cacf33
commit 7a23eaec1b
1 changed files with 4 additions and 3 deletions
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7
vnpy/chart/item.py
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@ -89,14 +89,15 @@ class ChartItem(pg.GraphicsObject):
This function is called by external QGraphicsView.
"""
rect = opt.exposedRect
min_ix = int(rect.left())
max_ix = int(rect.right())
max_ix = min(max_ix, len(self._bar_picutures))
self._draw_item_picture(min_ix, max_ix)
self._draw__item_picuture(min_ix, max_ix)
self._item_picuture.play(painter)
def _draw__item_picuture(self, min_ix: int, max_ix: int) -> None:
def _draw_item_picture(self, min_ix: int, max_ix: int) -> None:
"""
Draw the picture of item in specific range.
"""
@ -179,7 +180,7 @@ class CandleItem(ChartItem):
min_price, max_price = self._manager.get_price_range()
rect = QtCore.QRectF(
0,
max_price,
min_price,
len(self._bar_picutures),
max_price - min_price
)