检索 window 大小和小部件大小时遇到问题
Trouble in retrieving window size and widget size
这是摄像头监控系统的代码。在 configuration_page.py 文件中，尽管使用了 self.showMaximized() 和 resizeEvent()，但我得到的 window 的大小为 100x30。其中的小部件也显示大小为 640x480。我特别感兴趣的是检索 config.py 文件中 CameraDisplay class 中名为 self.mid_frame 的小部件的大小。
早些时候，我在 dashboard.py 文件中遇到了同样的问题，但在这种情况下，我通过显式传递宽度和高度找到了解决方法。但是这次我卡住了，因为我需要获取名为 self.mid_frame 的小部件的大小。我不明白为什么连 resizeEvent 都显示错误的大小。
main.py
from PyQt4 import QtGui, QtCore
from PyQt4.QtCore import Qt, QRect
from threading import Thread, RLock, Lock
from collections import deque
from datetime import datetime
import time
import sys
import cv2
import imutils
from dashboard import *
from configuration_page import *
from global_widgets import *
class CameraWidget(QtGui.QWidget):
"""Independent camera feed
Uses threading to grab IP camera frames in the background
@param width - Width of the video frame
@param height - Height of the video frame
@param stream_link - IP/RTSP/Webcam link
@param aspect_ratio - Whether to maintain frame aspect ratio or force into fraame
"""
def __init__(self, stream_link=0, stacked_widget=None, width=0, height=0, btn_text=None, idx=None, aspect_ratio=False, parent=None, deque_size=1):
super(CameraWidget, self).__init__(parent)
# Initialize deque used to store frames read from the stream
self.deque = deque(maxlen=deque_size)
self.maintain_aspect_ratio = aspect_ratio
self.camera_stream_link = stream_link
self.stacked_widget = stacked_widget
self.idx = idx
# Flag to check if camera is valid/working
self.online = False
self.capture = None
self.video_frame = QtGui.QLabel()
self.video_frame_1 = QtGui.QLabel()
self.load_network_stream()
# Start background frame grabbing
self.get_frame_thread = Thread(target=self.get_frame, args=())
self.get_frame_thread.daemon = True
self.get_frame_thread.start()
# Periodically set video frame to display
self.timer = QtCore.QTimer()
self.timer.timeout.connect(self.set_frame)
self.timer.start(.5)
print('Started camera: {}'.format(self.camera_stream_link))
def load_network_stream(self):
"""Verifies stream link and open new stream if valid"""
def load_network_stream_thread():
if self.verify_network_stream(self.camera_stream_link):
self.capture = cv2.VideoCapture(self.camera_stream_link)
self.online = True
self.load_stream_thread = Thread(target=load_network_stream_thread, args=())
self.load_stream_thread.daemon = True
self.load_stream_thread.start()
def verify_network_stream(self, link):
"""Attempts to receive a frame from given link"""
cap = cv2.VideoCapture(link)
if not cap.isOpened():
return False
cap.release()
return True
def get_frame(self):
"""Reads frame, resizes, and converts image to pixmap"""
while True:
try:
if self.capture.isOpened() and self.online:
# Read next frame from stream and insert into deque
status, frame = self.capture.read()
if status:
self.deque.append(frame)
else:
self.capture.release()
self.online = False
else:
# Attempt to reconnect
print('attempting to reconnect', self.camera_stream_link)
self.load_network_stream()
self.spin(2)
self.spin(.001)
except AttributeError:
pass
def spin(self, seconds):
"""Pause for set amount of seconds, replaces time.sleep so program doesnt stall"""
time_end = time.time() + seconds
while time.time() < time_end:
QtGui.QApplication.processEvents()
def set_frame(self):
"""Sets pixmap image to video frame"""
if not self.online:
self.spin(1)
return
if self.deque and self.online:
# Grab latest frame
frame = self.deque[-1]
frame_1 = self.deque[-1]
# Display frames on dashboard and configuration pages
# Frame for dashboard
# Keep frame aspect ratio
if self.maintain_aspect_ratio:
self.frame = imutils.resize(frame, width=self.screen_width)
# Force resize
else:
self.frame = cv2.resize(frame, (self.screen_width, self.screen_height))
self.frame = cv2.cvtColor(self.frame, cv2.COLOR_BGR2RGB)
h, w, ch = self.frame.shape
bytesPerLine = ch * w
# Frame for configuration page-----------------------------------------------------------------------------------------
# print('2: ', self.screen_width_1, self.screen_height_1)
self.frame_1 = cv2.resize(frame_1, (self.screen_width_1, self.screen_height_1))
self.frame_1 = cv2.cvtColor(self.frame_1, cv2.COLOR_BGR2RGB)
h_1, w_1, ch_1 = self.frame_1.shape
bytesPerLine_1 = ch_1 * w_1
# Convert to pixmap and set to video frame
self.img = QtGui.QImage(self.frame, w, h, bytesPerLine, QtGui.QImage.Format_RGB888)
self.pix = QtGui.QPixmap.fromImage(self.img)
self.video_frame.setPixmap(self.pix)
self.img_1 = QtGui.QImage(self.frame_1, w_1, h_1, bytesPerLine_1, QtGui.QImage.Format_RGB888)
self.pix_1 = QtGui.QPixmap.fromImage(self.img_1)
self.video_frame_1.setPixmap(self.pix_1)
def set_frame_params(self, width, height, btn_text=None, idx=0):
self.screen_width = width
self.screen_height = height
self.btn_text = btn_text
self.idx = idx
def set_frame_params_1(self, width, height):
self.screen_width_1 = width
self.screen_height_1 = height
def get_video_display_frame(self):
self.video_display_frame = QtGui.QFrame()
self.video_layout = QtGui.QVBoxLayout()
self.video_btn = QtGui.QPushButton(self.btn_text)
self.video_btn.setStyleSheet("background-color: rgb(128, 159, 255);")
self.video_btn.clicked.connect(self.on_clicked)
# self.video_frame = QtGui.QLabel()
self.video_frame.setScaledContents(True)
self.video_layout.addWidget(self.video_btn)
self.video_layout.addWidget(self.video_frame)
self.video_layout.setContentsMargins(0,0,0,0)
self.video_layout.setSpacing(0)
self.video_display_frame.setLayout(self.video_layout)
return self.video_display_frame
def get_video_frame(self):
self.video_frame_1.setScaledContents(True)
return self.video_frame_1
@QtCore.pyqtSlot()
def on_clicked(self):
GlobalObject().dispatchEvent("hello", args=(self.idx,))
self.stacked_widget.setCurrentIndex(1)
class Window(QtGui.QMainWindow):
def __init__(self, parent=None):
super(Window, self).__init__(parent)
self.stacked_widget = QtGui.QStackedWidget()
layout = QtGui.QVBoxLayout()
layout.setContentsMargins(0,0,0,0)
layout.addWidget(self.stacked_widget)
widget = QtGui.QWidget()
widget.setLayout(layout)
self.setCentralWidget(widget)
self.cam1 = CameraWidget(camera1, self.stacked_widget, idx=1)
widget_1 = DashBoard(self.cam1, self.stacked_widget)
widget_2 = ZoneConfig(self.cam1, self.stacked_widget)
self.stacked_widget.addWidget(widget_1)
self.stacked_widget.addWidget(widget_2)
self.showMaximized()
camera1 = '../streams/Fog.avi'
if __name__ == '__main__':
app = QtGui.QApplication([])
app.setStyle(QtGui.QStyleFactory.create("plastique"))
# app.setStyle(QtGui.QStyleFactory.create("Cleanlooks"))
window = Window()
window.show()
sys.exit(app.exec_())
dashboard.py
from PyQt4 import QtGui, QtCore
from global_widgets import *
class DashBoard(QtGui.QWidget):
def __init__(self, cam1, stacked_widget, parent=None):
super(DashBoard, self).__init__(parent)
self.showMaximized()
self.screen_width = self.width()
self.screen_height = self.height()
self.stacked_widget = stacked_widget
# Layouts and frames
layout = QtGui.QVBoxLayout()
top_frame = QtGui.QFrame()
top_frame.setStyleSheet("background-color: rgb(208, 208, 225)")
mid_frame = QtGui.QFrame()
mid_frame.setStyleSheet("background-color: rgb(153, 187, 255)")
layout.addWidget(top_frame, 1)
layout.addWidget(QHLine())
layout.addWidget(mid_frame, 20)
layout.setContentsMargins(0,0,0,0)
layout.setSpacing(0)
self.setLayout(layout)
# Top frame
label = QtGui.QLabel('Dashboard')
label.setFont(QtGui.QFont('Times New Roman', 20))
top_layout = QtGui.QHBoxLayout()
top_layout.addWidget(label, alignment=QtCore.Qt.AlignCenter)
top_layout.setContentsMargins(5,5,5,5)
top_frame.setLayout(top_layout)
# Middle frame
self.mid_layout = QtGui.QStackedLayout()
# Create camera widgets
print('Creating Camera Widgets...')
cam_widget = Cam1(cam1, self.screen_width, self.screen_height, self)
self.mid_layout.addWidget(cam_widget)
self.mid_layout.setCurrentWidget(cam_widget)
mid_frame.setLayout(self.mid_layout)
class Cam1(QtGui.QWidget):
def __init__(self, cam1, screen_width, screen_height, parent=None):
super(Cam1, self).__init__(parent)
cam1.set_frame_params(screen_width, screen_height, 'VIDS 01', 1)
# Add widgets to layout
print('Adding widgets to layout...')
layout = QtGui.QGridLayout()
layout.addWidget(cam1.get_video_display_frame(),0,0,1,1)
layout.setContentsMargins(5,5,5,5)
self.setLayout(layout)
configuration_page.py
from PyQt4 import QtGui, QtCore
from global_widgets import *
from ui_main import *
class ZoneConfig(QtGui.QWidget):
def __init__(self, cam1, stacked_widget, parent=None):
super(ZoneConfig, self).__init__(parent)
GlobalObject().addEventListener("hello", self.set_cam)
self.layout = QtGui.QVBoxLayout()
self.frame = QtGui.QFrame()
self.frame_layout = QtGui.QStackedLayout()
# self.setLayout(self.frame_layout)
self.screen_width = self.width()
self.screen_height = self.height()
cam_widget_1 = CameraDisplay(cam1, 1, self.frame_layout, stacked_widget, self)
self.frame_layout.addWidget(cam_widget_1)
self.frame.setLayout(self.frame_layout)
self.layout.addWidget(self.frame)
self.layout.setContentsMargins(0,0,0,0)
self.setLayout(self.layout)
@QtCore.pyqtSlot()
def set_cam(self, index):
if index == 1:
self.frame_layout.setCurrentIndex(0)
class CameraDisplay(QtGui.QWidget):
def __init__(self, cam, idx, frame_layout, stacked_widget, parent=None):
super(CameraDisplay, self).__init__(parent)
self.showMaximized()
self.screen_width = self.width()
self.screen_height = self.height()
self.frame_layout = frame_layout
self.stacked_widget = stacked_widget
print('size: ', self.screen_width, self.screen_height)
# Layouts and frames
layout = QtGui.QVBoxLayout()
top_frame = QtGui.QFrame()
top_frame.setStyleSheet("background-color: rgb(208, 208, 225)")
self.mid_frame = QtGui.QFrame() ## Size of this frame is needed
self.mid_frame.setStyleSheet("background-color: rgb(153, 187, 255)")
btm_frame = QtGui.QFrame()
btm_frame.setStyleSheet("background-color: rgb(208, 208, 225)")
# Top frame
label = QtGui.QLabel('Configuration')
label.setFont(QtGui.QFont('Times New Roman', 20))
top_layout = QtGui.QHBoxLayout()
top_layout.addWidget(label, alignment=QtCore.Qt.AlignCenter)
top_layout.setContentsMargins(5,5,5,5)
top_frame.setLayout(top_layout)
# Middle frame
mid_layout = QtGui.QHBoxLayout()
# Create camera widgets
print('Creating Camera Widgets...')
mid_layout = QtGui.QHBoxLayout()
self.video_frame = cam.get_video_frame()
mid_layout.addWidget(self.video_frame)
mid_layout.setContentsMargins(5,5,5,5)
self.mid_frame.setLayout(mid_layout)
# Bottom frame
btn = QtGui.QPushButton('Dashboard')
btn.clicked.connect(self.goMainWindow)
btm_layout = QtGui.QHBoxLayout()
btm_layout.addStretch()
btm_layout.addWidget(btn)
btm_layout.setContentsMargins(5,5,5,5)
btm_frame.setLayout(btm_layout)
layout.addWidget(top_frame, 1)
layout.addWidget(QHLine())
layout.addWidget(self.mid_frame, 50)
layout.addWidget(QHLine())
layout.addWidget(btm_frame, 1)
layout.setContentsMargins(0,0,0,0)
layout.setSpacing(0)
self.setLayout(layout)
# self.showMaximized()
cam.set_frame_params_1(self.mid_frame.width(), self.mid_frame.height()-10) ## here I want the size
def resizeEvent(self, event):
QtGui.QWidget.resizeEvent(self, event)
def goMainWindow(self):
self.stacked_widget.setCurrentIndex(0)
我认为问题仅出在 configuration_page.py 文件中，但我粘贴了整个代码以防有人想查看整个逻辑。
将以下内容添加到您的代码中。
def event(self, e):
if e.type() in (QEvent.Show, QEvent.Resize):
widget_w = self.mid_frame.frameGeometry().width()
widget_h = self.mid_frame.frameGeometry().height()
screen_w = self.width()
screen_h = self.height()
# For "debugging" purposes:
print("Widget - width: %s height: %s" % (widget_w, widget_h)
print("screen - width: %s height: %s" % (screen_w, screen_h)
return ((widget_w, widget_h), (screen_w, screen_h))
#return {"widget": {"width": widget_w, "height": widget_h}, "screen": {"width": screen_w, "height": screen_h}}
这是摄像头监控系统的代码。在 configuration_page.py 文件中，尽管使用了 self.showMaximized() 和 resizeEvent()，但我得到的 window 的大小为 100x30。其中的小部件也显示大小为 640x480。我特别感兴趣的是检索 config.py 文件中 CameraDisplay class 中名为 self.mid_frame 的小部件的大小。
早些时候，我在 dashboard.py 文件中遇到了同样的问题，但在这种情况下，我通过显式传递宽度和高度找到了解决方法。但是这次我卡住了，因为我需要获取名为 self.mid_frame 的小部件的大小。我不明白为什么连 resizeEvent 都显示错误的大小。
main.py
from PyQt4 import QtGui, QtCore
from PyQt4.QtCore import Qt, QRect
from threading import Thread, RLock, Lock
from collections import deque
from datetime import datetime
import time
import sys
import cv2
import imutils
from dashboard import *
from configuration_page import *
from global_widgets import *
class CameraWidget(QtGui.QWidget):
"""Independent camera feed
Uses threading to grab IP camera frames in the background
@param width - Width of the video frame
@param height - Height of the video frame
@param stream_link - IP/RTSP/Webcam link
@param aspect_ratio - Whether to maintain frame aspect ratio or force into fraame
"""
def __init__(self, stream_link=0, stacked_widget=None, width=0, height=0, btn_text=None, idx=None, aspect_ratio=False, parent=None, deque_size=1):
super(CameraWidget, self).__init__(parent)
# Initialize deque used to store frames read from the stream
self.deque = deque(maxlen=deque_size)
self.maintain_aspect_ratio = aspect_ratio
self.camera_stream_link = stream_link
self.stacked_widget = stacked_widget
self.idx = idx
# Flag to check if camera is valid/working
self.online = False
self.capture = None
self.video_frame = QtGui.QLabel()
self.video_frame_1 = QtGui.QLabel()
self.load_network_stream()
# Start background frame grabbing
self.get_frame_thread = Thread(target=self.get_frame, args=())
self.get_frame_thread.daemon = True
self.get_frame_thread.start()
# Periodically set video frame to display
self.timer = QtCore.QTimer()
self.timer.timeout.connect(self.set_frame)
self.timer.start(.5)
print('Started camera: {}'.format(self.camera_stream_link))
def load_network_stream(self):
"""Verifies stream link and open new stream if valid"""
def load_network_stream_thread():
if self.verify_network_stream(self.camera_stream_link):
self.capture = cv2.VideoCapture(self.camera_stream_link)
self.online = True
self.load_stream_thread = Thread(target=load_network_stream_thread, args=())
self.load_stream_thread.daemon = True
self.load_stream_thread.start()
def verify_network_stream(self, link):
"""Attempts to receive a frame from given link"""
cap = cv2.VideoCapture(link)
if not cap.isOpened():
return False
cap.release()
return True
def get_frame(self):
"""Reads frame, resizes, and converts image to pixmap"""
while True:
try:
if self.capture.isOpened() and self.online:
# Read next frame from stream and insert into deque
status, frame = self.capture.read()
if status:
self.deque.append(frame)
else:
self.capture.release()
self.online = False
else:
# Attempt to reconnect
print('attempting to reconnect', self.camera_stream_link)
self.load_network_stream()
self.spin(2)
self.spin(.001)
except AttributeError:
pass
def spin(self, seconds):
"""Pause for set amount of seconds, replaces time.sleep so program doesnt stall"""
time_end = time.time() + seconds
while time.time() < time_end:
QtGui.QApplication.processEvents()
def set_frame(self):
"""Sets pixmap image to video frame"""
if not self.online:
self.spin(1)
return
if self.deque and self.online:
# Grab latest frame
frame = self.deque[-1]
frame_1 = self.deque[-1]
# Display frames on dashboard and configuration pages
# Frame for dashboard
# Keep frame aspect ratio
if self.maintain_aspect_ratio:
self.frame = imutils.resize(frame, width=self.screen_width)
# Force resize
else:
self.frame = cv2.resize(frame, (self.screen_width, self.screen_height))
self.frame = cv2.cvtColor(self.frame, cv2.COLOR_BGR2RGB)
h, w, ch = self.frame.shape
bytesPerLine = ch * w
# Frame for configuration page-----------------------------------------------------------------------------------------
# print('2: ', self.screen_width_1, self.screen_height_1)
self.frame_1 = cv2.resize(frame_1, (self.screen_width_1, self.screen_height_1))
self.frame_1 = cv2.cvtColor(self.frame_1, cv2.COLOR_BGR2RGB)
h_1, w_1, ch_1 = self.frame_1.shape
bytesPerLine_1 = ch_1 * w_1
# Convert to pixmap and set to video frame
self.img = QtGui.QImage(self.frame, w, h, bytesPerLine, QtGui.QImage.Format_RGB888)
self.pix = QtGui.QPixmap.fromImage(self.img)
self.video_frame.setPixmap(self.pix)
self.img_1 = QtGui.QImage(self.frame_1, w_1, h_1, bytesPerLine_1, QtGui.QImage.Format_RGB888)
self.pix_1 = QtGui.QPixmap.fromImage(self.img_1)
self.video_frame_1.setPixmap(self.pix_1)
def set_frame_params(self, width, height, btn_text=None, idx=0):
self.screen_width = width
self.screen_height = height
self.btn_text = btn_text
self.idx = idx
def set_frame_params_1(self, width, height):
self.screen_width_1 = width
self.screen_height_1 = height
def get_video_display_frame(self):
self.video_display_frame = QtGui.QFrame()
self.video_layout = QtGui.QVBoxLayout()
self.video_btn = QtGui.QPushButton(self.btn_text)
self.video_btn.setStyleSheet("background-color: rgb(128, 159, 255);")
self.video_btn.clicked.connect(self.on_clicked)
# self.video_frame = QtGui.QLabel()
self.video_frame.setScaledContents(True)
self.video_layout.addWidget(self.video_btn)
self.video_layout.addWidget(self.video_frame)
self.video_layout.setContentsMargins(0,0,0,0)
self.video_layout.setSpacing(0)
self.video_display_frame.setLayout(self.video_layout)
return self.video_display_frame
def get_video_frame(self):
self.video_frame_1.setScaledContents(True)
return self.video_frame_1
@QtCore.pyqtSlot()
def on_clicked(self):
GlobalObject().dispatchEvent("hello", args=(self.idx,))
self.stacked_widget.setCurrentIndex(1)
class Window(QtGui.QMainWindow):
def __init__(self, parent=None):
super(Window, self).__init__(parent)
self.stacked_widget = QtGui.QStackedWidget()
layout = QtGui.QVBoxLayout()
layout.setContentsMargins(0,0,0,0)
layout.addWidget(self.stacked_widget)
widget = QtGui.QWidget()
widget.setLayout(layout)
self.setCentralWidget(widget)
self.cam1 = CameraWidget(camera1, self.stacked_widget, idx=1)
widget_1 = DashBoard(self.cam1, self.stacked_widget)
widget_2 = ZoneConfig(self.cam1, self.stacked_widget)
self.stacked_widget.addWidget(widget_1)
self.stacked_widget.addWidget(widget_2)
self.showMaximized()
camera1 = '../streams/Fog.avi'
if __name__ == '__main__':
app = QtGui.QApplication([])
app.setStyle(QtGui.QStyleFactory.create("plastique"))
# app.setStyle(QtGui.QStyleFactory.create("Cleanlooks"))
window = Window()
window.show()
sys.exit(app.exec_())
dashboard.py
from PyQt4 import QtGui, QtCore
from global_widgets import *
class DashBoard(QtGui.QWidget):
def __init__(self, cam1, stacked_widget, parent=None):
super(DashBoard, self).__init__(parent)
self.showMaximized()
self.screen_width = self.width()
self.screen_height = self.height()
self.stacked_widget = stacked_widget
# Layouts and frames
layout = QtGui.QVBoxLayout()
top_frame = QtGui.QFrame()
top_frame.setStyleSheet("background-color: rgb(208, 208, 225)")
mid_frame = QtGui.QFrame()
mid_frame.setStyleSheet("background-color: rgb(153, 187, 255)")
layout.addWidget(top_frame, 1)
layout.addWidget(QHLine())
layout.addWidget(mid_frame, 20)
layout.setContentsMargins(0,0,0,0)
layout.setSpacing(0)
self.setLayout(layout)
# Top frame
label = QtGui.QLabel('Dashboard')
label.setFont(QtGui.QFont('Times New Roman', 20))
top_layout = QtGui.QHBoxLayout()
top_layout.addWidget(label, alignment=QtCore.Qt.AlignCenter)
top_layout.setContentsMargins(5,5,5,5)
top_frame.setLayout(top_layout)
# Middle frame
self.mid_layout = QtGui.QStackedLayout()
# Create camera widgets
print('Creating Camera Widgets...')
cam_widget = Cam1(cam1, self.screen_width, self.screen_height, self)
self.mid_layout.addWidget(cam_widget)
self.mid_layout.setCurrentWidget(cam_widget)
mid_frame.setLayout(self.mid_layout)
class Cam1(QtGui.QWidget):
def __init__(self, cam1, screen_width, screen_height, parent=None):
super(Cam1, self).__init__(parent)
cam1.set_frame_params(screen_width, screen_height, 'VIDS 01', 1)
# Add widgets to layout
print('Adding widgets to layout...')
layout = QtGui.QGridLayout()
layout.addWidget(cam1.get_video_display_frame(),0,0,1,1)
layout.setContentsMargins(5,5,5,5)
self.setLayout(layout)
configuration_page.py
from PyQt4 import QtGui, QtCore
from global_widgets import *
from ui_main import *
class ZoneConfig(QtGui.QWidget):
def __init__(self, cam1, stacked_widget, parent=None):
super(ZoneConfig, self).__init__(parent)
GlobalObject().addEventListener("hello", self.set_cam)
self.layout = QtGui.QVBoxLayout()
self.frame = QtGui.QFrame()
self.frame_layout = QtGui.QStackedLayout()
# self.setLayout(self.frame_layout)
self.screen_width = self.width()
self.screen_height = self.height()
cam_widget_1 = CameraDisplay(cam1, 1, self.frame_layout, stacked_widget, self)
self.frame_layout.addWidget(cam_widget_1)
self.frame.setLayout(self.frame_layout)
self.layout.addWidget(self.frame)
self.layout.setContentsMargins(0,0,0,0)
self.setLayout(self.layout)
@QtCore.pyqtSlot()
def set_cam(self, index):
if index == 1:
self.frame_layout.setCurrentIndex(0)
class CameraDisplay(QtGui.QWidget):
def __init__(self, cam, idx, frame_layout, stacked_widget, parent=None):
super(CameraDisplay, self).__init__(parent)
self.showMaximized()
self.screen_width = self.width()
self.screen_height = self.height()
self.frame_layout = frame_layout
self.stacked_widget = stacked_widget
print('size: ', self.screen_width, self.screen_height)
# Layouts and frames
layout = QtGui.QVBoxLayout()
top_frame = QtGui.QFrame()
top_frame.setStyleSheet("background-color: rgb(208, 208, 225)")
self.mid_frame = QtGui.QFrame() ## Size of this frame is needed
self.mid_frame.setStyleSheet("background-color: rgb(153, 187, 255)")
btm_frame = QtGui.QFrame()
btm_frame.setStyleSheet("background-color: rgb(208, 208, 225)")
# Top frame
label = QtGui.QLabel('Configuration')
label.setFont(QtGui.QFont('Times New Roman', 20))
top_layout = QtGui.QHBoxLayout()
top_layout.addWidget(label, alignment=QtCore.Qt.AlignCenter)
top_layout.setContentsMargins(5,5,5,5)
top_frame.setLayout(top_layout)
# Middle frame
mid_layout = QtGui.QHBoxLayout()
# Create camera widgets
print('Creating Camera Widgets...')
mid_layout = QtGui.QHBoxLayout()
self.video_frame = cam.get_video_frame()
mid_layout.addWidget(self.video_frame)
mid_layout.setContentsMargins(5,5,5,5)
self.mid_frame.setLayout(mid_layout)
# Bottom frame
btn = QtGui.QPushButton('Dashboard')
btn.clicked.connect(self.goMainWindow)
btm_layout = QtGui.QHBoxLayout()
btm_layout.addStretch()
btm_layout.addWidget(btn)
btm_layout.setContentsMargins(5,5,5,5)
btm_frame.setLayout(btm_layout)
layout.addWidget(top_frame, 1)
layout.addWidget(QHLine())
layout.addWidget(self.mid_frame, 50)
layout.addWidget(QHLine())
layout.addWidget(btm_frame, 1)
layout.setContentsMargins(0,0,0,0)
layout.setSpacing(0)
self.setLayout(layout)
# self.showMaximized()
cam.set_frame_params_1(self.mid_frame.width(), self.mid_frame.height()-10) ## here I want the size
def resizeEvent(self, event):
QtGui.QWidget.resizeEvent(self, event)
def goMainWindow(self):
self.stacked_widget.setCurrentIndex(0)
我认为问题仅出在 configuration_page.py 文件中，但我粘贴了整个代码以防有人想查看整个逻辑。
将以下内容添加到您的代码中。
def event(self, e):
if e.type() in (QEvent.Show, QEvent.Resize):
widget_w = self.mid_frame.frameGeometry().width()
widget_h = self.mid_frame.frameGeometry().height()
screen_w = self.width()
screen_h = self.height()
# For "debugging" purposes:
print("Widget - width: %s height: %s" % (widget_w, widget_h)
print("screen - width: %s height: %s" % (screen_w, screen_h)
return ((widget_w, widget_h), (screen_w, screen_h))
#return {"widget": {"width": widget_w, "height": widget_h}, "screen": {"width": screen_w, "height": screen_h}}