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QTWidgets QTableWidget crash with segfault


QTWidgets QTableWidget crash with segfault

By : Kaitlyn Reid
Date : November 19 2020, 03:01 PM
Does that help at the first time there is no item in your table, your application crashed if pointer pointed non and when you want to reach it!
try this;
code :
void MainWindow::on_addNode_clicked()
{
    ui->nodesTable->insertRow(ui->nodesTable->rowCount());
    if( !ui->nodesTable->rowCount() )
    {
        ui->nodesTable->item(ui->nodesTable->rowCount()-1, 0)->setText(ui->nodesTable->item(ui->nodesTable->rowCount()-2,0)->text());
    }
    else
    {
        ui->nodesTable->setItem(0, 0,new QTableWidgetItem(QString("New Item")));
    }
}


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Nodejs crash: GC segfault

Nodejs crash: GC segfault


By : Jacklyn
Date : March 29 2020, 07:55 AM
it fixes the issue The problems seems to be cause by mongodb logs that fill up the disk space a some point. Was actually hard to see because we clean this periodically so was not critical at the moment I've checked.
How to inherit QtWidgets.QWidget in my class and make my class type - QtWidgets.QWidget?

How to inherit QtWidgets.QWidget in my class and make my class type - QtWidgets.QWidget?


By : dobruny.developeruch
Date : March 29 2020, 07:55 AM
wish helps you When you create a class you have an option to inherit from another object, in this case probably a QDialog since it's your tool's main window. It's not enough to simply inherit it though, you have to call QDialog's constructor in order for it to initialize properly, and you can do that with super.
With super you can choose to run a method from your class's object it inherited from. It will look something like this: super(YOUR_CLASS_NAME, INSTANCE).METHOD_TO_RUN(PARAMETERS_TO_PASS). So more specifically to run your __init__ it will be: super(testUi, self).__init__(parent), and that will fix it.
code :
from PySide2 import QtGui, QtCore, QtWidgets
from shiboken2 import wrapInstance
import maya.OpenMaya as om
import maya.OpenMayaUI as omui
import maya.cmds as cmds
import os, functools


def getMayaWindow():
    pointer = omui.MQtUtil.mainWindow()
    if pointer is not None:
        return wrapInstance(long(pointer), QtWidgets.QWidget)


class testUi(QtWidgets.QDialog):  # Need to inherit from a `QObject`

    def __init__(self, parent=None):  # It's typical to include the `parent` parameter and pass that through `super`.
        # If nothing was passed for parent, default to Maya's main window.
        if parent is None:
            parent = getMayaWindow()

        super(testUi, self).__init__(parent)  # Call `super` with the class's name, testUi, and its instance, self.
        self.window = 'vl_test'
        self.title = 'Test Remastered'
        self.size = (1000, 650)

        self.create()  # Just automatically call create in the instance's constructor.

    def create(self):
        if cmds.window(self.window, exists=True):
            cmds.deleteUI(self.window, window=True)

        self.setWindowTitle(self.title)
        self.resize(QtCore.QSize(*self.size))

        self.testik = test(self)  # Add `self.` so it belongs to this instance.

        self.mainButton = QtWidgets.QPushButton()

        self.mainLayout = QtWidgets.QVBoxLayout()  # QVBoxLayout seems to give a better result.
        self.mainLayout.addWidget(self.testik)
        self.mainLayout.addWidget(self.mainButton)
        self.setLayout(self.mainLayout)  # Don't forget to make this widget actually set to this layout and use it.


class test(QtWidgets.QFrame):

    def __init__(self, parent=None, maya_transform_nodes=[]):
        super(test, self).__init__(parent)  # Call `super` with the class's name, test, and its instance, self.

        self.setMinimumWidth(300)
        self.setMinimumHeight(300)
        self.setStyleSheet("QWidget {border: 1px solid rgb(0, 255, 0)};")

        self.items = []

        self.transform_move = QtGui.QTransform()
        self.transform_scale = QtGui.QTransform()

        self.prev_mouse_pos = QtCore.QPoint(0, 0)

        self.color = QtGui.QColor(0, 255, 50, 50)
        self.clicked_color = QtGui.QColor(0, 255, 50, 150)
        self.right_clicked_color = QtGui.QColor(255, 0, 0, 150)


v = testUi()
v.show()  # Call show to show it!
Crash in Deleting selected items from QTablewidget

Crash in Deleting selected items from QTablewidget


By : David Beresford
Date : March 29 2020, 07:55 AM
it helps some times A slightly different flavor of this operation can be found in the Nokia dev forums, the evolved form provided by Ruzik looks like..
Qt 5.3. QtWidgets: No such file or directory #include <QtWidgets>

Qt 5.3. QtWidgets: No such file or directory #include <QtWidgets>


By : Prem Prakash Bashyal
Date : March 29 2020, 07:55 AM
I wish did fix the issue. I want to compile Qt example. I get error QtWidgets: No such file or directory #include , You need to double check that you completed all these steps:
pytest: If a crash/segfault/etc. occurs during testing, is there a way to make pytest log the crash as a test failure an

pytest: If a crash/segfault/etc. occurs during testing, is there a way to make pytest log the crash as a test failure an


By : user5223754
Date : March 29 2020, 07:55 AM
I hope this helps . Using the pytest-xdist plugin it will restart the nodes automatically when they crash, so installing the plugin and running the tests with -n1 should make py.test survive the crashing tests.
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