pyqt

问题 I want to run command with PyQt5. And I want to get the stdout and stderr in time order and in real-time. I separated into UI class and Worker class. There are several UI classes, but for simplicity, I've specified just one. I've tried to solve this problem, but I can't. I can't connect between the Worker thread and logger function. test_ui.py import sys import subprocess from PyQt5.QtWidgets import QApplication, QWidget, QHBoxLayout, QVBoxLayout from PyQt5.QtWidgets import QPushButton,

问题 I am trying "Hello World" using PyQt5 with Python 3.7.3 and macOS 10.14.6. Executing pyqt_helloworld.py below and clicking the button will update the label to "Hello World". However, when the button is clicked, the text is not changed, and it is not until I focus on the window of other application manually that the label is updated. How can I update QLabel without unfocusing the PyQt application? Thanks in advance! pyqt_helloworld_ui.py from PyQt5 import QtCore, QtGui, QtWidgets class Ui

问题 I am trying "Hello World" using PyQt5 with Python 3.7.3 and macOS 10.14.6. Executing pyqt_helloworld.py below and clicking the button will update the label to "Hello World". However, when the button is clicked, the text is not changed, and it is not until I focus on the window of other application manually that the label is updated. How can I update QLabel without unfocusing the PyQt application? Thanks in advance! pyqt_helloworld_ui.py from PyQt5 import QtCore, QtGui, QtWidgets class Ui

问题 I am trying "Hello World" using PyQt5 with Python 3.7.3 and macOS 10.14.6. Executing pyqt_helloworld.py below and clicking the button will update the label to "Hello World". However, when the button is clicked, the text is not changed, and it is not until I focus on the window of other application manually that the label is updated. How can I update QLabel without unfocusing the PyQt application? Thanks in advance! pyqt_helloworld_ui.py from PyQt5 import QtCore, QtGui, QtWidgets class Ui

问题 I wish to plot a matplotlib graph in a second window when a button is clicked in the main window. Using https://matplotlib.org/examples/user_interfaces/embedding_in_qt4.html , which plots a graph in the main window, I wrote the code below. The matplotlib graph is indeed plotted in a second window, but it has a very small size and I don't understand how to adjust the size of the graph to the window. May I have some help? from PyQt5.QtWidgets import QMainWindow, QPushButton, QApplication,

问题 I have some custom items in the scene. I would like to allow the user to connect the two items using the mouse. I checked an answer in this question but there wasn't a provision to let users connect the two points. (Also, note that item must be movable) Here is a demonstration of how I want it to be: I want the connection between the two ellipses as shown above Can I know how this can be done? 回答1: While the solution proposed by JacksonPro is fine, I'd like to provide a slightly different

问题 I want to insert text items from a Worker Qthread to a QTableWidget UI in Main thread ?. I want to know the Syntax to create the signal in Main thread , so I can insert the text as well as the row and column from Worker thread by sending via signal class Example(QWidget): def __init__(self): super().__init__() self.myclass2 = myclass2() self.myclass2.start() self.initUI() def initUI(self): self.setGeometry(300, 300, 300, 220) self.setWindowTitle('Icon') self.setWindowIcon(QIcon('web.png'))

问题 I'm using pyqtgraph to plot a huge number of data that I receive from sensors. To do so, I made one thread that acquire the data and put in a queue. To plot the data, I check periodically with a timer if the queue is not empty. The problem is that the accuracy of the timer (QTimer) seems to be really bad. I mean when the load is low (sleep for 1000/100 ms) in the measuring thread, the accuracy is pretty good but when the load increase (sleep for 10ms), my update function used to plot data is

问题 Basically, what I have is a GUI with some QLineEdits, a "search button" and a table. You hit the button and a class called DataGrabber searches a database for data, processes them, returns a list with dictionaries with which the table is filled, accordingly. These searches can take a while and I need to keep my GUI responsive. Also, I want the statusbar message to change as long as the search is going on (something like "Searching." -> "Searching.." -> "Searching...", the functionality is not

问题 I want the border of my QTWidgets.QWidget to be transparent or disabled (borderwidth=0), but when I set it via the stylesheet to "border:0", also all the push buttons inside the widget dont have a border - any idea how to keep the style of the pushbuttons and only change the widget border ? class lamp_frame(object): def setupUi(self, window): window.setObjectName("Yeelight Controlle") window.resize(460, 140+self.window_hight) window.setFixedSize(460, 140+self.window_hight) self.frame_0 =