def boundingRect(self):
if not self.source or not self.dest:
return QtCore.QRectF()
extra = (self.penWidth + self.arrowSize) / 2.0
extra = max(extra, self.fontHeight)
return QtCore.QRectF(
self.sourcePoint,
QtCore.QSizeF(self.destPoint.x() - self.sourcePoint.x(),
self.destPoint.y() -
self.sourcePoint.y())).normalized().adjusted(
-extra, -extra, extra, extra)
def boundingRect(self):
if not self.source or not self.dest:
return QtCore.QRectF()
penWidth = 2.0
# extra padding for edge text
#if self._beingHovered:
# extra = (penWidth + 10.0) / 2.0
#else:
extra = (penWidth + 30.0) / 2.0
# http://lists.trolltech.com/qt-interest/2000-08/thread00439-0.html
# bound = QRect(QPoint(min(p0.x(),p1.x(),p2.x(),p3.x()),
# min(p0.y(),p1.y(),p2.y(),p3.y())),
# QPoint(max(p0.x(),p1.x(),p2.x(),p3.x()),
# mxa(p0.y(),p1.y(),p2.y(),p3.y())));
return QtCore.QRectF(
self.sourcePoint,
QtCore.QSizeF(self.destPoint.x() - self.sourcePoint.x(),
self.destPoint.y() -
self.sourcePoint.y())).normalized().adjusted(
-extra, -extra, extra, extra)
def mousePressEvent(self, event): # CANVAS SCENE
printMouseEvent(self, event)
modifiers = getKeyboardModifiers()
# allow graphics view panning
if self.graph._panning:
event.ignore()
return
# if its not a port, then don't draw a line
modmidbutton_event = (event.button() == QtCore.Qt.LeftButton
and modifiers == QtCore.Qt.AltModifier)
if ((event.button() == QtCore.Qt.LeftButton) or (event.button() == QtCore.Qt.MidButton) or modmidbutton_event) \
and isinstance(self.itemAt(event.scenePos()), Port):
event.accept()
self.startLineDraw(event)
# rubber band select
# elif ((event.button() == QtCore.Qt.MidButton) or modmidbutton_event):
elif ((event.button() == QtCore.Qt.LeftButton) \
and not isinstance(self.itemAt(event.scenePos()), Node) \
and not isinstance(self.itemAt(event.scenePos()), PortEdge)):
event.accept()
self.unselectAllItems() # reset select before making another
self.origin = event.scenePos()
self.rubberBand = QtGui.QGraphicsRectItem(
QtCore.QRectF(self.origin, QtCore.QSizeF()))
self.rubberBand.setPen(
QtGui.QPen(QtCore.Qt.gray, 0, QtCore.Qt.SolidLine))
self.rubberBand.setBrush(QtGui.QBrush(QtCore.Qt.lightGray))
self.rubberBand.setZValue(0)
self.addItem(self.rubberBand)
else:
QtGui.QApplication.restoreOverrideCursor()
event.ignore()
super(CanvasScene, self).mousePressEvent(event)