class LoopTool(AbstractPathTool):
def __init__(self, controller, parent=None):
"""
This class inherits from the PathTool class for the majority of
methods/behaviours. Essentially it adds merely decorator graphics
custimazation of behaviour and data structure access particular to
loop insertion on a mouseclick.
Its parent should be *always* be a PathHelix.
"""
super(LoopTool, self).__init__(controller, parent)
self._loopItem = LoopItem()
_pen = QPen(styles.bluestroke, 2)
self.baseWidth = styles.PATH_BASE_WIDTH
self.hide()
self.setZValue(styles.ZPATHTOOL)
self._isTop = True
# end def
def paint(self, painter, option, widget=None):
painter.setPen(self._pen)
painter.setBrush(self._brush)
painter.drawRect(self._toolRect)
painter.setPen(self._loopItem.getPen())
painter.drawPath(self._loopItem.getLoop(self._isTop))
# end def
def hoverMovePathHelix(self, ph, event, flag=None):
"""
flag is for the case where an item in the path also needs to
implement the hover method
"""
posItem = event.pos()
if flag != None:
posScene = event.scenePos()
posItem = self.parentItem().mapFromScene(posScene)
if self.helixIndex(posItem)[1] == 1:
self._isTop = False
else:
self._isTop = True
self.setPos(self.helixPos(posItem))
# end def
def mousePressPathHelix(self, ph, event):
vh = ph.vhelix()
posScene = event.scenePos()
posItem = self.parentItem().mapFromScene(posScene)
indexp = self.helixIndex(posItem)
mouseDownBase = ph.baseAtLocation(posItem.x(),\
posItem.y())
print "LoopTool clicked at: (%d, %d) on helix %d" % \
(indexp[0], indexp[1], self.parentItem().number())
# create a new LoopHandle by adding through the parentItem
if mouseDownBase:
if vh.hasLoopAt(*mouseDownBase):
pass
elif vh.hasStrandAt(*mouseDownBase):
vh.installLoop(mouseDownBase[0],mouseDownBase[1],1)
def __init__(self, controller, parent=None):
"""
This class inherits from the PathTool class for the majority of
methods/behaviours. Essentially it adds merely decorator graphics
custimazation of behaviour and data structure access particular to
loop insertion on a mouseclick.
Its parent should be *always* be a PathHelix.
"""
super(LoopTool, self).__init__(controller, parent)
self._loopItem = LoopItem()
_pen = QPen(styles.bluestroke, 2)
self.baseWidth = styles.PATH_BASE_WIDTH
self.hide()
self.setZValue(styles.ZPATHTOOL)
self._isTop = True
