General and Desktop

Disregard almost everything I said 🙈, of course the internal storage is sorted on key/value pair insert

you might find it easier to install Qt on your raspi, together with the creator, then just use Remote Desktop session for developing directly on the raspi.

@IknowQT said in Run the executable file built in Ubuntu on Raspberry Pi Ubuntu: @sierdzio If the arm64 and amd64 architectures are different for the same Ubuntu, do you need to make cross-compilation? Yes, cross-compile or compile natively on Raspberry Pi.

Tested with Qt 5.15.2 on MSWindows 10 and Ubuntu 20.04 LTS The problem is the same. I forgot to say, I use QCompleter normally through the QLineEdit. m_textLineEditWidget->setCompleter(completer); I think that the QListView used for completer is not managed by the Scene, and it s for that the scale of it doesnt operate. Probably to fix it, I will need to create a ListView manually and Add it to the scene. :-/ What do you think ?

hi, can anybody tell me how to implement moveRows() for the class derived from QSortFilterProxyModel: moveRows(const QModelIndex &sourceParent, int sourceRow, int count, const QModelIndex &destinationParent, int destinationChild) it looks like we need to exchange the proxy indexes, but we can't access to the private members in the subclass

@ChrisW67 Thank you for the explanation, I will stop returning image pointer now.

Nevermind, I solved it, I forgot to define the config as staticlib while building the qrencode library

@jeremy_k I put 'regular_expression.optimize();' before the whole loop, and it makes no help.

@Sprezzatura I try to convert a dialog (with OCX control like a TableView) and your program crash!! Can you release the source code, so we can adjust/correct?? Thanks in Advance...

@Pablo-J-Rogina yes, and it doesn't say much more than what can be gleaned from the function signature. What is missing is any discussion of why one might want to call it (in normal circumstances that is, not to work around what apparently is a bug). Also, as I asked, whether calling it might have any adverse effects.

Hi After you added the files to the res file, do you build the project ? (sorry the screenshots cant be uploaded here directly as its broken)

@Gabber Hi It's fine to close it and then just open another one in case you got new questions. This will keep the posts shorter and easier for newcomers to look at if they search for solutions.

Thank you. I was just going to reply that I found CONFIG on the qmake tests page, but y'all beat me to it. :) Thank you for the quick replies!

degrees, radians can't learn to use them Radians are for mathematicians, maybe physicists. Degrees are for the rest of us :)

@CuriousPan said in QDateTimeAxis - how to set format of date the same as system has, but without time?: QDateTimeAxis Should you feel brave and actually spend 30 seconds looking into the documentation, like I did, you would notice that there is a setFormat() method: https://doc.qt.io/qt-5/qdatetimeaxis.html#format-prop And that it takes well known format strings from QDateTime: https://doc.qt.io/qt-5/qdatetime.html#toString

@ mrjj why can't I get a full circle ??? #include "krug_qt.h" Krug_qt::Krug_qt(QWidget *parent) : QMainWindow(parent) { R = 90.0; q = 24; p = 24; kol_toch = 180; } Krug_qt::~Krug_qt() { } void Krug_qt::fillVertexArray() { float grad = 360.0/kol_toch; float grad_kol_toch = 0.0; // градусы*M_PI/180 = радианы int j; for (j = 0; j <= kol_toch; ++j){ integerVector.append(R * cos(grad_kol_toch*M_PI/180.0)); integerVector.append(R * sin(grad_kol_toch*M_PI/180.0)); grad_kol_toch = grad_kol_toch + grad; } } void Krug_qt::paintEvent(QPaintEvent *event) { integerVector.clear(); QPainter painter(this); // Создаём объект отрисовщика QPen pen_abris(Qt::black, 2, Qt::SolidLine, Qt::FlatCap); // кисть обрисовки (компаса) painter.setRenderHint(QPainter::Antialiasing); // убираем резкие кубики painter.setPen(pen_abris); // Устанавливаем кисть обрисовки fillVertexArray(); // Набираем массив painter.translate(this->width()/2, this->height()/2); // смещение отрисовки qDebug() << integerVector.size(); int f = 0; for(int i =0; i<integerVector.size()/2; i++) { i++; f++; painter.drawPoint(QPointF(integerVector[--i],integerVector[i])); qDebug() << "f :"<<f; // painter.drawPoint(QPointF(integerVector[i],integerVector[i++])); // i++; } } [image: b782ea31-6cc8-4d5e-815c-3a70041efd3d.png]

I have decided to change my funtion. QWidget* addPushButtonInTableCell(U2bYTES row, U2bYTES column, U2bYTES numberToPushButton, QTableWidget * pTableWidget , QWidget* parent, QString ruta, const char* slot) { QWidget *pWidget = new QPushButton(QString::number(numberToPushButton),parent); ... return pWidget; } Invoke QWidget* pWidget = addPushButtonInTableCell(0,15,pQ->u.cue.n, tableWidget , pMW->options, ":/ui/recursos/ExtrasInsert.png"); QObject::connect(pWidget,SIGNAL(clicked()), pMW->options, SLOT(on_pushButton_newJump_clicked())); It works fine.

@Sai-Raul Look : https://doc.qt.io/qt-5/qscrollarea.html Whitout Qlablel.. There is QGraphicsScene with QGraphicsView.

@Mihan said in How to uncheck the action on the toolbar: So does it meen I must setChecked(false) by myself in lower version? Yes.