pyqt5

问题 The widgetAt function gives me the widget directly under the cursor, at the highest z-order. pos = QtGui.QCursor.pos() widget = QtGui.qApp.widgetAt(pos) But how can I get all widgets under the cursor? Including those behind the top-most one? Something like: pos = QtGui.QCursor.pos() widgets = QtGui.qApp.widgetsAt(pos) Example As an example of use, picture an overlay which adds animated graphics, like ripples on the surface of water, wherever the user clicked. Naturally, the overlay would need

问题 I'm trying to make a toolbox widget that will do various different things. But I'm having trouble with the layout management regarding the QScrollArea. Following the stripped version of the code I have: from PyQt5 import QtWidgets import sys class MyScrollWidget(QtWidgets.QWidget): def __init__(self): super(MyScrollWidget, self).__init__() scrollArea = QtWidgets.QScrollArea(self) top_widget = QtWidgets.QWidget() top_layout = QtWidgets.QVBoxLayout() for i in range(10): group_box = QtWidgets

问题 I'm trying to make a toolbox widget that will do various different things. But I'm having trouble with the layout management regarding the QScrollArea. Following the stripped version of the code I have: from PyQt5 import QtWidgets import sys class MyScrollWidget(QtWidgets.QWidget): def __init__(self): super(MyScrollWidget, self).__init__() scrollArea = QtWidgets.QScrollArea(self) top_widget = QtWidgets.QWidget() top_layout = QtWidgets.QVBoxLayout() for i in range(10): group_box = QtWidgets

问题 From a tutorial, I've seen that signals and slots can be used to make callbacks from a worker thread into the main GUI thread, but I'm uncertain how to establish bi-directional communication using signals and slots. The following is what I am working with: class RespondedToWorkerSignals(QObject): callback_from_worker = pyqtSignal() class RespondedToWorker(QRunnable): def __init__(self, func, *args, **kwargs): super(RespondedToWorker, self).__init__() self._func = func self.args = args self

问题 Suppose I have QGraphicsPixmapItem from loaded image which is added to QGraphicsScene . And suppose I'll add several QGraphicsPolygonItem 's on scene. How I can render a part of the scene as full-size image both with polygons that are not in blank area and save this area as image file. class ImageView(QtWidgets.QGraphicsView): def __init__(self, parent): super(ImageView, self).__init__(parent) self.setFocus() self._zoom = 0 self._empty = True self.scene = QtWidgets.QGraphicsScene(self) self.

问题 I have a PyQt5 QTableWidget for which I want to detect double-right-click events. Here is my 'design.py' module: from PyQt5 import QtCore, QtWidgets class Ui_MainWindow(object): def setupUi(self, MainWindow): MainWindow.setObjectName("MainWindow") MainWindow.resize(790, 472) self.centralwidget = QtWidgets.QWidget(MainWindow) self.centralwidget.setObjectName("centralwidget") self.tbwMain = QtWidgets.QTabWidget(self.centralwidget) self.tbwMain.setGeometry(QtCore.QRect(0, 0, 801, 451)) self

问题 I am trying to load a menubar onto my gui, but my class object has no attribute for self.menuBar(). Can someone help me, no tutorials seem to offer any way around. class EmailBlast(QtWidgets.QWidget): def __init__(self): super().__init__() bar = QtWidgets.menuBar() file_menu = bar.addMenu('File') file_edit = bar.addMenu('Edit') Error message: File "BasicEmail.py", line 84, in email_config self.ui = EmailBlast() File "BasicEmail.py", line 96, in __init__ self.menuBar() AttributeError:

问题 I am trying to load a menubar onto my gui, but my class object has no attribute for self.menuBar(). Can someone help me, no tutorials seem to offer any way around. class EmailBlast(QtWidgets.QWidget): def __init__(self): super().__init__() bar = QtWidgets.menuBar() file_menu = bar.addMenu('File') file_edit = bar.addMenu('Edit') Error message: File "BasicEmail.py", line 84, in email_config self.ui = EmailBlast() File "BasicEmail.py", line 96, in __init__ self.menuBar() AttributeError:

问题 I am trying to load a menubar onto my gui, but my class object has no attribute for self.menuBar(). Can someone help me, no tutorials seem to offer any way around. class EmailBlast(QtWidgets.QWidget): def __init__(self): super().__init__() bar = QtWidgets.menuBar() file_menu = bar.addMenu('File') file_edit = bar.addMenu('Edit') Error message: File "BasicEmail.py", line 84, in email_config self.ui = EmailBlast() File "BasicEmail.py", line 96, in __init__ self.menuBar() AttributeError:

问题 I am trying to load a menubar onto my gui, but my class object has no attribute for self.menuBar(). Can someone help me, no tutorials seem to offer any way around. class EmailBlast(QtWidgets.QWidget): def __init__(self): super().__init__() bar = QtWidgets.menuBar() file_menu = bar.addMenu('File') file_edit = bar.addMenu('Edit') Error message: File "BasicEmail.py", line 84, in email_config self.ui = EmailBlast() File "BasicEmail.py", line 96, in __init__ self.menuBar() AttributeError: