@CEO said in How to display QTableWidget selected row in a qLineEdit of the same class?: @JonB now I discovered you are either hoarding knowledge or might not have done any work on the question. Yes, you're right. I have nothing better to do than lie to questioners about what I know and they should do, and I don't spend enough of my time writing the code demanded to save them time. Here is an extract from my usage of the QDataWidgetMapper which I know nothing about from a sample project of mine. I'm sorry if my variables/widgets/model are not the same as yours. Also here I happen to be binding to QSpinBoxes, let me know if I need to change it to QLineEdits for you. void SectorRegisters::initDataWidgetMapper() { // set up the `QDataWidgetMapper` this->dwm = new QDataWidgetMapper(this); // set model (this->sectorsModel is the model being used, in my case it's a `QStandardItemModel`) SectorsModel *sectorsModel = this->sectorsModel; dwm->setModel(sectorsModel); // Vertical => widget mapped to row dwm->setOrientation(Qt::Vertical); // current index is always column #0 dwm->setCurrentIndex(0); // Region mappings dwm->addMapping(ui->spinRegionSocialState, SectorsModel::RegionSocialState); dwm->addMapping(ui->spinRegionGoodAreas, SectorsModel::RegionGoodAreas); dwm->addMapping(ui->spinRegionPoorAreas, SectorsModel::RegionPoorAreas); dwm->addMapping(ui->spinRegionCash, SectorsModel::RegionCash); // Here there are many further widget<->model-column mappings // ... } You're welcome.

Did you consider using the QtGraphicalEffects module ?

@Lalremruata said in How to avoid Null or empty value in QLineedit of Pyqt5: even the self.lineEdit_2 is empty. Are you really 100% sure? I used PyQt5 and I'm pretty sure self.lineEdit_2.text() == "" would work as expected. Get rid of all your other code and behaviour and check just this in a tiny program? @jsulm You should rather use https://doc.qt.io/qt-5/qstring.html#isEmpty My understanding is PyQt5's QLineEdit.text() returns a Python str rather than a C++ QString anyway. I never found using QString methods of any use in PyQt5.

thanks guy I get my goal by the other way

@Pl45m4 no but I don't know how to do that sizeHint() can return the right size in a layout.and I have a valid parent.

@SGaist ok I see, but I still can't get the size after layout(this return QtCore.QSize()) self.graphicsView_3.adjustSize() print(self.graphicsView_3.size()) full code from PyQt5 import QtCore, QtGui, QtWidgets from PhotoViewer import PhotoViewer class Ui_MainWindow(object): def setupUi(self, MainWindow): MainWindow.setObjectName("MainWindow") MainWindow.resize(800, 600) self.centralwidget = QtWidgets.QWidget(MainWindow) self.centralwidget.setObjectName("centralwidget") self.gridLayout = QtWidgets.QGridLayout(self.centralwidget) self.gridLayout.setObjectName("gridLayout") self.graphicsView_2 = QtWidgets.QGraphicsView(self.centralwidget) self.graphicsView_2.setObjectName("graphicsView_2") self.gridLayout.addWidget(self.graphicsView_2, 2, 0, 1, 1) self.graphicsView = QtWidgets.QGraphicsView(self.centralwidget) self.graphicsView.setObjectName("graphicsView") self.gridLayout.addWidget(self.graphicsView, 1, 0, 1, 1) self.graphicsView_3 = PhotoViewer(self.centralwidget) self.graphicsView_3.adjustSize() print(self.graphicsView_3.size()) self.graphicsView_3.setObjectName("graphicsView_3") self.gridLayout.addWidget(self.graphicsView_3, 1, 1, 1, 1) self.graphicsView_4 = QtWidgets.QGraphicsView(self.centralwidget) self.graphicsView_4.setObjectName("graphicsView_4") self.gridLayout.addWidget(self.graphicsView_4, 2, 1, 1, 1) MainWindow.setCentralWidget(self.centralwidget) self.menubar = QtWidgets.QMenuBar(MainWindow) self.menubar.setGeometry(QtCore.QRect(0, 0, 800, 25)) self.menubar.setObjectName("menubar") MainWindow.setMenuBar(self.menubar) self.statusbar = QtWidgets.QStatusBar(MainWindow) self.statusbar.setObjectName("statusbar") MainWindow.setStatusBar(self.statusbar) self.retranslateUi(MainWindow) QtCore.QMetaObject.connectSlotsByName(MainWindow) def retranslateUi(self, MainWindow): _translate = QtCore.QCoreApplication.translate MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow")) if __name__ == "__main__": import sys app = QtWidgets.QApplication(sys.argv) MainWindow = QtWidgets.QMainWindow() ui = Ui_MainWindow() ui.setupUi(MainWindow) MainWindow.show() sys.exit(app.exec_())

You should try to comment on the GItHub issue to see if you can get more details of how it was done ?

@JonB Thank you for interactions. Would you please show me an exact code of for example a PushButton and where to implement it. I am advanced python coder, I just need to see exact steps. Thank you very much.

@KroMignon Well, i try to learn from anothers in every forum, sorry :), @jsulm Thank you Sir, you are a Life saver :)

@Stainopel None of this seems relevant. Either you don't really want separate applications but just one and you just want to show the other widget. Or, to run another application as you ask, use Qt's QProcess, or the Python ones for running sub-processes if you prefer, called from your button clicked slot.

@JonB Very Good Suggestion, I used a second variable in the other function to read the opened file(s) from the first function and it did work like a charm. Thanks. Here is an update to the code def encryption_hash(self,comboBox_2): index = self.comboBox_2.currentIndex() path = self.fname_E with open(path, 'rb') as f: if index == 2: hasher1 = hashlib.md5() afile1 = f buf1 = afile1.read() a = hasher1.update(buf1) md5 =(str(hasher1.hexdigest())) self.lineEdit_E.setText("File Hash Using MD5: " + md5)

@Pl45m4 yes I initially used a line edit but ended up changing it to a qtextedit instead. Then using the documentation I was able to get the expected results

Hello, @JonB, thanks a lot for your reply. Yes, this is exactly what I meant. Sorry for being unclear before.

@hcroope For PyQt question you might ask at: https://riverbankcomputing.com/mailman/listinfo/pyqt

@Marek-Stocki Wait, wait! You absolutely do not want to move a Python3 application back to Python2! Trust me :) Even 26 seconds startup is quite unacceptable. Start up should be like ~1 second!! There is something wrong.....

I did the migration with mysqldump then I edited the dump file. Then I have the resulting file into sqlite and saved it as database. The date columns are now stored in sqlite as TEXT fields. All done on a linux machine. Thank you VRonin for your suggestion. That sounds like a great idea. Can I do this in pyQt5 or do I need to go to C++? I think QSQLiteDriver is a plugin i.e. a shared library. That means I have to do this in C++. Is that right? I wanted to avoid C++ so that my application is more portable. But anyway this solution sounds great. Thanks for you answers guys.

Hi I have not seen steam on linux , however they might have use https://en.wikipedia.org/wiki/Client-side_decoration or something similar. or have hand made it. While this works ok for win https://github.com/dfct/TrueFramelessWindow I have not seen one for linux. Maybe due to all the different managers. Short story is. Qt do not draw the title bar so one can either totally fake it and draw all - and handle all min/max resize etc by manual code or if the Desktop/Manager supports it, use direct api extensions.

@Dexter99 said in How to make a resizable gui?: How can I solve this See https://doc.qt.io/qt-5/layout.html

Yes that is what SGaist said in the post previous to your last post

Thanks for the feedback and happy hacking !

Hi and welcome to devnet, Isn't that a system notification ?

@anp405, my first guess would be that by setting PYTHONPATH you are losing the location of PyQt5 package. This depends on your Python and environment setup, but if there is some PYTHONPATH existing, you are overriding it completely instead of complementing. You can verify this by opening a new command line session, setting PYTHONPATH to wherever your code sets it, then running Python interpreter and trying to import PyQt5. Another guess would be that your child process uses different Python environment (e.g. built-in system Python 2), which does not have PyQt5 installed in its site-packages.

@mrjj Thank you very much! Problem solved.

@badr You have one table widget (or similar, actually presumably QTableView rather than QTableWidget since you have your own model) holding rows & columns from a SQL query. You say you want another table widget to show a column "computed" (at client side) from columns in the first one. So why not create a second model whose data() method is overridden to perform the necessary computation and return the desired final string for Qt::DisplayRole using the index.row/column() (not just the index) as indexers into the SQL model's rows/columns? Or, if you want to stick with your current usage of QTableWidget (not ideal that you use Python SQL calls and copy result set into that, but up to you), you could make your second one a QTableWidget too and use setData() to populate its rows/columns with the actual corresponding strings whenever the first one changes (more work depending on how often your data changes, but in your case it might only be during loaddata() when you populate if it does not change thereafter).

Hi, You can put your QStackedLayout and buttons in a QVBoxLayout so you can re-use the buttons. Put that layout in a QWidget and set that widget as the central widget of your QMainWindow.

Hi and welcome to devnet, How are you building your executable ? What version of PyQt5 and Qt are you using ? Since you are using PyQt, you might want to consider contacting its authors.

@raven-worx you sir saved my life! I cant believe i was stuck at this for 2 days, when it was simply just about using the right object in qml. thanks!

Hi, Looks like there's some problem with the PySide 2 implementation. You should check the bug report system to see if it's something known. If not, please consider opening a new report providing your example and as much details as possible about your current setup.

@MATTK said in Configuring checkbox when using QTreeWidget: is this a bug or a known issue from Qt Designer? No, it's 100% intended behaviour. the condition is checked here You have 2 options: set the Qt::CheckStateRole for the indexes you want to have a checkbox. In your widget constructor you'd call something like setUnchecked(ui->treeWidget->model()); void setUnchecked(QAbstractItemModel* model, const QModelIndex& parent = QModelIndex()){ if(!model) return; for(int i=0, maxRow=model->rowCount(parent);i<maxRow;++i){ for(int j=0, maxCol=model->columnCount(parent);j<maxCol;++j){ const QModelIndex currIdx = model->index(i,j,parent); model->setData(currIdx,Qt::Unchecked,Qt::CheckStateRole); if(model->hasChildren(currIdx)) setUnchecked(model,currIdx); } } } subclass the delegate to check the flag instead of Qt::CheckStateRole and call something like ui->treeWidget->setItemDelegate(new CheckFlagDelegate(this)); in your widget constructor class CheckFlagDelegate : public QStyledItemDelegate{ Q_OBJECT Q_DISABLE_COPY(CheckFlagDelegate) public: explicit CheckFlagDelegate(QObject* parent = Q_NULLPTR) : QStyledItemDelegate(parent){} protected: void initStyleOption(QStyleOptionViewItem *option, const QModelIndex &index) const Q_DECL_OVERRIDE{ QStyledItemDelegate::initStyleOption(option,index); if(index.model()->flags(index) & Qt::ItemIsUserCheckable) option->features |= QStyleOptionViewItem::HasCheckIndicator; } }; Since the functionality is defined in a QObject (the delegate) and not in a QWidget this is not something designer can and probably ever will manage

@mrjj okay thank you very much! And yes, my Designer also have a StyleSheet editor like this: Cheers