Graph.py 文件源码

def onMouseMotion(self,event):
        inv =  self.host.transData.inverted()
        pos = inv.transform((event.x,event.y))

        if self.cursorActive:
            if event.button == 1:
                #QtGui.QApplication.setOverrideCursor((QtGui.QCursor(Qt.CrossCursor)))
                #activate Crossline Cursor
                if self.cursorD is None:
                    self.cursorD = Cursor(self.host, useblit=False)
                else:
                    self.cursorD.set_active(True)

                if self.mpl_toolbar.cbA.isChecked():
                    if not self.cursorA is None: #delete static Cursorline if Cursor is active
                        self.cursorA.delLine()
                        self.cursorA = None
                    self.showCursorPos(pos[0], pos[1], 'A')
                    self.showCursorPos(math.fabs(pos[0]-self.cursorB.x), math.fabs(pos[1]-self.cursorB.y), 'C')
                    self.cursorD.lineh.set_color('gray')
                    self.cursorD.linev.set_color('gray')

                else:
                    if not self.cursorB is None: #delete static Cursorline if Cursor is active
                        self.cursorB.delLine()
                        self.cursorB = None
                    self.showCursorPos(pos[0], pos[1], 'B')
                    self.showCursorPos(math.fabs(pos[0]-self.cursorA.x), math.fabs(pos[1]-self.cursorA.y), 'C')
                    self.cursorD.lineh.set_color('black')
                    self.cursorD.linev.set_color('black')

                event.inaxes = self.host
                self.cursorD.onmove(event)
            else:
                self.showCursorPos(pos[0],pos[1],'D')
                #QtGui.QApplication.restoreOverrideCursor()
        else:
            self.showCursorPos(pos[0], pos[1], 'D')