Python QGraphicsTextItem.setZValue方法代碼示例

# 需要導入模塊: from PyQt5.QtWidgets import QGraphicsTextItem [as 別名]
# 或者: from PyQt5.QtWidgets.QGraphicsTextItem import setZValue [as 別名]
    def addWP(self, wp):
        if wp.command in [mavutil.mavlink.MAV_CMD_NAV_WAYPOINT,
                          mavutil.mavlink.MAV_CMD_NAV_WAYPOINT,
                          mavutil.mavlink.MAV_CMD_NAV_LOITER_TO_ALT,
                          mavutil.mavlink.MAV_CMD_NAV_LOITER_TURNS,
                          mavutil.mavlink.MAV_CMD_NAV_LOITER_TIME,
                          mavutil.mavlink.MAV_CMD_NAV_LOITER_UNLIM,
                          mavutil.mavlink.MAV_CMD_NAV_LAND]:
            

            #point
            rad = self.__wp_diameter * 0.5
            ellipse = QGraphicsEllipseItem(wp.y - rad, -wp.x - rad, 
                self.__wp_diameter, self.__wp_diameter, self.__mission_layer)
            ellipse.setBrush(QBrush(QColor(255, 255, 255)))
            e_pen = QPen(QColor(255, 255, 255))
            e_pen.setWidth(0)
            ellipse.setPen(e_pen)
            self.__mission_layer.addToGroup(ellipse)

            #label
            label = QGraphicsTextItem(str(wp.seq), self.__mission_layer)
            label.setZValue(2)
            label.setDefaultTextColor(Qt.white)
            label.setPos(wp.y + rad, -wp.x - rad)
            label.setScale(0.00002)  #bit hacky --  really should scale based on
                                 #current zoom, but I'm in a hurry.
            self.__mission_layer.addToGroup(label)
            label.show()

# 需要導入模塊: from PyQt5.QtWidgets import QGraphicsTextItem [as 別名]
# 或者: from PyQt5.QtWidgets.QGraphicsTextItem import setZValue [as 別名]
class AnimatedClock(QGraphicsView):
    def __init__(self, parent=None):
        QGraphicsView.__init__(self, parent)
        self.updateSecs = 0.5
        # Border
        self.setLineWidth(0)
        self.setFrameShape(QtWidgets.QFrame.NoFrame)
        # Size
        sizePolicy = QSizePolicy(QSizePolicy.Preferred, QSizePolicy.Preferred)
        sizePolicy.setHeightForWidth(True)
        self.setSizePolicy(sizePolicy)
        # No scrollbars
        self.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
        self.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
        # Scene
        self.scene = QGraphicsScene()
        self.setScene(self.scene)
        self.setBackgroundBrush(QColor("black"))
        # Text of clock
        self.textItem = QGraphicsTextItem()
        self.textItem.color = QColor(QColor("black"))
        self.textItem.setFont(QFont("Segoe UI", 80))
        self.textItem.setDefaultTextColor(QColor("white"))
        self.textItem.setHtml("")
        self.textItem.setZValue(20)
        self.scene.addItem(self.textItem)
        # Start ticking
        self.start()

    def sizeHint(self):
        return QSize(300, 150)

    def start(self):
        self.updateTimer = QTimer()
        self.updateTimer.setInterval(self.updateSecs * 990)
        self.updateTimer.timeout.connect(self.updateClock)
        self.updateTimer.start()
        print("Animated clock - starting")

    def stop(self):
        if self.updateTimer != None:
            self.updateTimer.stop()
        print("Animated clock - stopping")

    def updateClock(self):
        localtime = time.localtime()
        timeString = time.strftime("%H:%M:%S", localtime)
        self.textItem.setHtml(timeString)
        width = self.frameGeometry().width()
        self.textItem.setFont(QFont("Segoe UI", width / 8))
        self.textItem.update()

    def heightForWidth(self, width):
        return width * .32

    def keyPressEvent(self, event): #QKeyEvent
        event.ignore()

# 需要導入模塊: from PyQt5.QtWidgets import QGraphicsTextItem [as 別名]
# 或者: from PyQt5.QtWidgets.QGraphicsTextItem import setZValue [as 別名]
    def updateIcon(self, id, uav_state, image_num=0):
        if uav_state.get_lon() == 0.0:
            #haven't received a Pose message yet
            return

        if id not in self.__plane_icons:
            #make the plane's label first
            label = QGraphicsTextItem(str(id), self.__plane_layer)
            label.setZValue(2)
            label.setDefaultTextColor(Qt.red)
            self.__plane_layer.addToGroup(label) 
            label.show()
            self.__plane_labels[id] = label

            self.__plane_icons[id] = MapGraphicsIcon(id, label,
                                                    self.__plane_layer)
            self.__plane_icons[id].centerIconAt(uav_state.get_lon(),
                                               -uav_state.get_lat())
            self.__plane_icons[id].textureIcon(self.__plane_icon_pixmaps[image_num])

            #plane icons need to be drawn on top of map tiles:
            self.__plane_icons[id].setZValue(1)
            self.__plane_layer.addToGroup(self.__plane_icons[id])

            #key 0 = last update time
            self.__plane_icons[id].setData(0, 0)

            #refresh:
            #HACK: don't know why zooming works to refresh. Couldn't
            #get scene.invalidate() nor scene.update() to work
            self.onZoom(self.__current_detail_layer)
        #end if

        now = time.time()

        #if we don't have new pose data, then we don't update the plane icon
        if (self.__plane_icons[id].data(0) is None 
         or self.__plane_icons[id].data(0) >= uav_state.get_last_pose_update()):
            return

        #place icon
        self.__plane_icons[id].centerIconAt(uav_state.get_lon(), -uav_state.get_lat())
        #give correct heading:
        quat = uav_state.get_quat()
        heading = acs_math.yaw_from_quat(quat[0], quat[1], quat[2], quat[3])
        self.__plane_icons[id].setHeading(heading)
          
        #set last update time
        self.__plane_icons[id].setData(0, now)