items.py 文件源码

def __init__(self, parent, noteExportObject):
        #Dimensions and Position
        x = noteExportObject["leftModInTicks"] / constantsAndConfigs.ticksToPixelRatio
        y = -1 * constantsAndConfigs.stafflineGap / 2 + 1
        w = (noteExportObject["rightModInTicks"] + noteExportObject["completeDuration"] - noteExportObject["leftModInTicks"]) / constantsAndConfigs.ticksToPixelRatio
        h = constantsAndConfigs.stafflineGap - 2  #2 pixel to make room for the pen-width.
        super().__init__(x, y, w, h)
        self.setPos(0, constantsAndConfigs.stafflineGap * noteExportObject["dotOnLine"] / 2)
        self.setParentItem(parent)

        #Prepare self.shape()
        #NOTE: this was from a time when mouse modification was possible. Leave for later use.
        #self.path = QtGui.QPainterPath()
        #self.pathRect = QtCore.QRectF(x, y-1, w, h+4) #this is directly related to inits parameter x, y, w, h
        #self.path.addRect(self.pathRect)
        #self.setCursor(QtCore.Qt.SizeHorCursor)

        #Different color when the duration was modified by the user
        inactive = "green" if noteExportObject["manualOverride"] else "black"
        self.inactiveColor = QtGui.QColor(inactive)
        self.setBrush(self.inactiveColor)

        #Pen for the borders
        pen = QtGui.QPen()
        pen.setCapStyle(QtCore.Qt.RoundCap)
        pen.setJoinStyle(QtCore.Qt.RoundJoin)
        pen.setWidth(1)
        pen.setColor(QtGui.QColor("darkGrey"))
        self.setPen(pen)

        #Since accidentals are part of the notehead we need one here. It doesn't matter if the traditional notehead already has one
        if noteExportObject["accidental"]: #0 means no difference to keysig
            self.accidental = GuiNote.createAccidentalGraphicsItem(self, noteExportObject["accidental"])
            self.accidental.setPos(0, 0) #not analogue to the notehead acciental position because here we choose the rectangle as parent
            self.accidental.setParentItem(self)

    #NOTE: this was from a time when mouse modification was possible. Leave for later use.
    #def shape(self):
    #    """Qt Function
    #    Return a more accurate shape for this item so that
    #    mouse hovering is more accurate.
    #
    #    Must be within the bounding rect."""
    #    return self.path

    #def boundingRect(self, *args):
    #    """Keep in syn with self.shape()"""
    #    return self.pathRect

    #def paint(self, *args):
        #Do NOT implement this. This actually works already. The parent item needs this.