def start_ui(self):
self.zui = Ui_zwin()
self.zui.setupUi(self)
self.zui.camera_label.setScaledContents(True)
# 初始化信息
self.zui.label_xuehao.setText("工号：")
self.zui.label_mingzi.setText("姓名：")
self.zui.label_time.setText("签到时间：")
# 查询按钮
self.zui.cxbtn.clicked.connect(self.cx_ui)
# 注册按钮
self.zui.zcbtn.clicked.connect(self.zq_zc)
# 签到按钮
self.zui.qdbtn.clicked.connect(self.zq_qd)
# 删除按钮
self.zui.del_btn.clicked.connect(self.del_yg)
# 导出按钮
self.zui.out_btn.clicked.connect(self.out_ex)
# 摄像头控制
camera = QCamera(self) # 创建摄像头
cameraviewfinder = QCameraViewfinder(self.zui.camera_label) # 创建显示窗口
cameraviewfinder.resize(752, 420)
self.cameraImageCapture = QCameraImageCapture(camera) # 绑定获取的摄像头
self.cameraImageCapture.setCaptureDestination(
QCameraImageCapture.CaptureToFile) # 获取数据类型
camera.setCaptureMode(QCamera.CaptureStillImage)
camera.setViewfinder(cameraviewfinder) # 绑定窗口
camera.start() # 开启摄像头
class VideoWindow(QMainWindow):
def __init__(self, parent=None):
super(VideoWindow, self).__init__(parent)
self.setWindowTitle(
"PyQt Video Player Widget Example - pythonprogramminglanguage.com")
self.mediaPlayer = QMediaPlayer(None, QMediaPlayer.VideoSurface)
self.camera = QCamera(0)
self.cameraviewfinder = QCameraViewfinder()
self.cameramode = self.camera.CaptureMode(2)
self.cameraimgcap = QCameraImageCapture(self.camera)
videoWidget = QVideoWidget()
self.imageView = QLabel("add a image file")
self.imageView.setAlignment(Qt.AlignCenter)
self.playButton = QPushButton()
self.playButton.setEnabled(True)
self.playButton.setIcon(self.style().standardIcon(QStyle.SP_MediaPlay))
self.playButton.clicked.connect(self.play)
self.positionSlider = QSlider(Qt.Horizontal)
self.positionSlider.setRange(0, 0)
self.scene1 = QGraphicsScene()
self.view1 = QGraphicsView(self.scene1)
# Create new action
# Create exit action
# Create a widget for window contents
wid = QWidget(self)
self.setCentralWidget(wid)
# Create layouts to place inside widget
# controlLayout = QHBoxLayout()
# controlLayout.setContentsMargins(0, 0, 0, 0)
# controlLayout.addWidget(self.playButton)
# controlLayout.addWidget(self.positionSlider)
videolayout = QVBoxLayout()
videolayout.addWidget(videoWidget)
# videolayout.addLayout(controlLayout)
# Set widget to contain window contents
layout = QHBoxLayout()
layout.addLayout(videolayout)
layout.addWidget(self.cameraviewfinder)
# layout.addWidget(self.view1)
wid.setLayout(layout)
self.mediaPlayer.setVideoOutput(videoWidget)
self.cameraviewfinder.show()
self.camera.setViewfinder(self.cameraviewfinder)
def exitCall(self):
sys.exit(app.exec_())
def play(self):
self.showFullScreen()
fileName = 'D:\\桌面\\some.mp4'
if fileName != '':
self.mediaPlayer.setMedia(
QMediaContent(QUrl.fromLocalFile(fileName)))
self.playButton.setEnabled(True)
self.cameraviewfinder.resize(640, 480)
self.camera.start()
self.mediaPlayer.play()
camera_capture = cv2.VideoCapture(0)
while True:
ret, camera_frame = camera_capture.read()
if ret:
self.displayImage(camera_frame)
else:
break
camera_capture.release()
cv2.destroyAllWindows()
def mediaStateChanged(self, state):
if self.mediaPlayer.state() == QMediaPlayer.PlayingState:
self.playButton.setIcon(self.style().standardIcon(
QStyle.SP_MediaPause))
else:
self.playButton.setIcon(self.style().standardIcon(
QStyle.SP_MediaPlay))
def displayImage(self, img):
self.scene1.clear()
pixMap = QPixmap(img)
w, h = pixMap.width(), pixMap.height()
self.scene1.addPixmap(pixMap)
self.view1.fitInView(QRectF(0, 0, w, h), Qt.KeepAspectRatio)
self.scene1.update()
class Widgets(QWidget):
def __init__(self, dispositivoCamara, parent=None):
super(Widgets, self).__init__(parent)
self.parent = parent
self.estadoFoto = False
self.byteArrayFoto = QByteArray()
# ==========================================================
frame = QFrame(self)
frame.setFrameShape(QFrame.Box)
frame.setFrameShadow(QFrame.Sunken)
frame.setFixedWidth(505)
frame.setFixedHeight(380)
frame.move(10, 10)
# Instancias
self.paginaVisor = QVideoWidget()
self.paginaVisor.resize(500, 375)
self.visor = QCameraViewfinder(self.paginaVisor)
self.visor.resize(500, 375)
self.labelFoto = QLabel()
self.labelFoto.setAlignment(Qt.AlignCenter)
self.labelFoto.resize(500, 375)
# QStackedWidget
self.stackedWidget = QStackedWidget(frame)
self.stackedWidget.addWidget(self.paginaVisor)
self.stackedWidget.addWidget(self.labelFoto)
self.stackedWidget.resize(500, 375)
self.stackedWidget.move(2, 2)
# ======================== BOTONES =========================
self.buttonTomarFoto = QPushButton("Tomar foto", self)
self.buttonTomarFoto.resize(110, 26)
self.buttonTomarFoto.move(525, 10)
self.buttonEliminarFoto = QPushButton("Eliminar foto", self)
self.buttonEliminarFoto.resize(110, 26)
self.buttonEliminarFoto.move(525, 50)
self.buttonGuardarFoto = QPushButton("Guardar foto", self)
self.buttonGuardarFoto.resize(110, 26)
self.buttonGuardarFoto.move(525, 82)
# ======================== EVENTOS =========================
self.buttonTomarFoto.clicked.connect(self.tomarFoto)
self.buttonEliminarFoto.clicked.connect(self.eliminarFoto)
self.buttonGuardarFoto.clicked.connect(self.guardarFoto)
# ================== FUNCIONES AUTOMÁTICAS =================
self.setCamara(dispositivoCamara)
# ======================= FUNCIONES ============================
def setCamara(self, dispositivoCamara):
if dispositivoCamara.isEmpty():
self.camara = QCamera()
else:
self.camara = QCamera(dispositivoCamara)
self.camara.stateChanged.connect(self.actualizarEstadoCamara)
self.capturaImagen = QCameraImageCapture(self.camara)
self.camara.setViewfinder(self.visor)
self.actualizarEstadoCamara(self.camara.state())
self.capturaImagen.imageCaptured.connect(self.procesarImagenCapturada)
self.capturaImagen.imageSaved.connect(self.imagenGuardada)
self.camara.isCaptureModeSupported(QCamera.CaptureStillImage)
self.camara.start()
self.paginaVisor.update()
def actualizarDispositivoCamara(self, action):
self.setCamara(action.data())
def actualizarEstadoCamara(self, estado):
if estado == QCamera.ActiveState:
self.parent.accionIniciarCamara.setEnabled(False)
self.parent.accionDetenerCamara.setEnabled(True)
if not self.estadoFoto:
self.buttonTomarFoto.setEnabled(True)
self.buttonEliminarFoto.setEnabled(False)
self.buttonGuardarFoto.setEnabled(False)
elif estado in (QCamera.UnloadedState, QCamera.LoadedState):
self.parent.accionIniciarCamara.setEnabled(True)
self.parent.accionDetenerCamara.setEnabled(False)
if not self.estadoFoto:
self.buttonTomarFoto.setEnabled(False)
self.buttonEliminarFoto.setEnabled(False)
self.buttonGuardarFoto.setEnabled(False)
def iniciarCamara(self):
self.camara.start()
def detenerCamara(self):
self.camara.stop()
def tomarFoto(self):
rutaFoto = "{}/fotoTemporal.jpg".format(getcwd())
self.capturaImagen.capture(rutaFoto)
self.estadoFoto = True
def procesarImagenCapturada(self, requestId, imagen):
foto = QPixmap.fromImage(imagen)
buffer = QBuffer(self.byteArrayFoto)
buffer.open(QIODevice.WriteOnly)
buffer.close()
foto.save(buffer, "PNG")
fotoEscalada = foto.scaled(self.labelFoto.size())
self.labelFoto.setPixmap(fotoEscalada)
self.mostrarImagenCapturada()
def visualizarVisor(self):
self.stackedWidget.setCurrentIndex(0)
def mostrarImagenCapturada(self):
self.stackedWidget.setCurrentIndex(1)
self.buttonTomarFoto.setEnabled(False)
self.buttonEliminarFoto.setEnabled(True)
self.buttonGuardarFoto.setEnabled(True)
def imagenGuardada(self, id, nombreFoto):
if QFile.exists(nombreFoto):
remove(nombreFoto)
def eliminarFoto(self):
self.estadoFoto = False
self.byteArrayFoto.clear()
self.labelFoto.clear()
self.actualizarEstadoCamara(self.camara.state())
self.visualizarVisor()
def guardarFoto(self):
guardarComo, extension = QFileDialog.getSaveFileName(
self,
"Guardar como",
"Foto",
"JPG (*.jpg);;PNG (*.png);;ICO (*.ico);;BMP (*.bmp)",
options=QFileDialog.Options())
if guardarComo:
foto = QPixmap()
foto.loadFromData(self.byteArrayFoto, "PNG", Qt.AutoColor)
foto.save(guardarComo, quality=100)
QMessageBox.information(
self, "Guardar foto",
"Foto guardada con éxito ")
self.eliminarFoto()