General and Desktop

@starlight make sure QT_DEBUG_PLUGINS is not defined.

@Christian-Ehrlicher Exactly. You are right! Thank you for your help!

@KH-219Design @JoeCFD @SGaist Thank you for nice solutions! I tried @JoeCFD 's solution. It worked and suitable for me!

@JacobNovitsky said in Additional info upon compiling with Qt Creator: how to interpret below? file Static_lib.h Static_lib.h: C++ source, ASCII text The file command is inspecting the Static_lib.h file and, using its rules, determining that the file contains C++ source or ASCII text. This is indeed the case. This file is not the precompiled output file generated by the compilation at step 1. in my example. how to include -H to my building command, if I build program with Qt Creator? I would not bother. Run it a one file compile once manually, verify the result, and then forget about it. I you really must have this extra output in every compilation then add it to the project file's CFLAGS, something like this linux-g++: QMAKE_CFLAGS_DEBUG += -H

@fs_tigre great!!

Okay I was not aware, that == is the compare operator since others are also overloaded bool operator<=(QTime lhs, QTime rhs) bool operator==(QTime lhs, QTime rhs) bool operator>(QTime lhs, QTime rhs) bool operator>=(QTime lhs, QTime rhs)

@JonB oh sorry my oversight, here is the code of my delegate: delegate.cpp: #include "ViewLayerItemDelegate.h" #include <QStyledItemDelegate> #include <QPainter> #include <QApplication> #include <QItemSelectionModel> #include <QMouseEvent> #include "ViewLayerList.h" #include <QTimer> ViewLayerItemDelegate::ViewLayerItemDelegate(QObject *parent) : QStyledItemDelegate{parent} { } QWidget *ViewLayerItemDelegate::createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const { qDebug() << "Editor created"; LineEditCheckBoxWidget *editor = new LineEditCheckBoxWidget(parent); // Verbinden Sie das textChanged() Signal des LineEdits mit Ihrem Slot connect(editor->lineEdit, &QLineEdit::textChanged, this, &ViewLayerItemDelegate::onLineEditTextChanged); //Ein Timer um direkt die Editierung des LineEdit zu ermöglichen QTimer::singleShot(0, editor->lineEdit, SLOT(setFocus())); return editor; } void ViewLayerItemDelegate::setEditorData(QWidget *editor, const QModelIndex &index) const { LineEditCheckBoxWidget *widget = static_cast<LineEditCheckBoxWidget *>(editor); // Setzen Sie die Werte der SpinBox und CheckBox basierend auf den Modellwerten QString lineEditvalue = index.model()->data(index, Qt::EditRole).toString(); bool checkBoxValue = index.model()->data(index, Qt::CheckStateRole).toBool(); widget->lineEdit->setText(lineEditvalue); widget->checkBox->setChecked(checkBoxValue); widget->setFocus(); widget->lineEdit->setFocus(Qt::MouseFocusReason); // Editor aktivieren widget->lineEdit->setStyleSheet("background: white"); widget->iconLabel->setAttribute(Qt::WA_TranslucentBackground); //widget->setStyleSheet("background: white"); // Setzen Sie den bearbeiteten Index const_cast<ViewLayerItemDelegate*>(this)->setCurrentlyEditedIndex(index); } void ViewLayerItemDelegate::setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const { LineEditCheckBoxWidget *widget = static_cast<LineEditCheckBoxWidget *>(editor); // Speichern Sie die Werte der SpinBox und CheckBox im Modell QString lineEditvalue = widget->lineEdit->text(); bool checkBoxValue = widget->checkBox->isChecked(); model->setData(index, lineEditvalue, Qt::EditRole); model->setData(index, checkBoxValue ? Qt::Checked : Qt::Unchecked, Qt::CheckStateRole); qDebug() << "Model data set"; // Setzen Sie den bearbeiteten Index zurück const_cast<ViewLayerItemDelegate*>(this)->setCurrentlyEditedIndex(QModelIndex()); } void ViewLayerItemDelegate::updateEditorGeometry(QWidget *editor, const QStyleOptionViewItem &option, const QModelIndex &index) const { editor->setGeometry(option.rect); } QSize ViewLayerItemDelegate::sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const { QSize size = QStyledItemDelegate::sizeHint(option, index); size.setHeight(40); // Setzen Sie hier die gewünschte Höhe // Ändern Sie die Einrückung basierend auf dem Level des Items (z.B., hier um 20 Pixel). int indentationLevel = index.column(); // Hier als Beispiel die Einrückung basierend auf der Spalte. size.rwidth() -= indentationLevel * 40; // Die Einrückung um 20 Pixel erhöhen. return size; } void ViewLayerItemDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const { QStyleOptionViewItem opt = option; initStyleOption(&opt, index); // Überprüfen Sie, ob der aktuelle Index bearbeitet wird if (index == currentlyEditedIndex) { return; } // Setzen Sie die Werte der SpinBox und CheckBox basierend auf den Modellwerten QString lineEditvalue = index.model()->data(index, Qt::EditRole).toString(); bool checkBoxValue = index.model()->data(index, Qt::CheckStateRole).toBool(); // Laden Sie das Icon und skalieren Sie es QPixmap iconPixmap("://resource/quick.png"); // Ersetzen Sie dies durch den Pfad zu Ihrer Icon-Datei QPixmap scaledPixmap = iconPixmap.scaled(32, 32, Qt::KeepAspectRatio, Qt::SmoothTransformation); // Berechnen Sie die Position für das Icon int centerY = option.rect.top() + option.rect.height() / 2; int iconY = centerY - scaledPixmap.height() / 2; QPoint iconPos = QPoint(option.rect.left() + 10, iconY); // Zeichnen Sie das Pixmap mit dem QPainter painter->drawPixmap(iconPos, scaledPixmap); // Berechnen Sie die Position und Größe für das LineEdit QRect lineEditRect = option.rect; lineEditRect.setLeft(iconPos.x() + scaledPixmap.width() + 10); // Adjust as needed lineEditRect.setRight(option.rect.right() - 10-35); // Adjust as needed // Erstellen Sie ein QStyleOptionFrame für das LineEdit QStyleOptionFrame lineEditOption; lineEditOption.lineWidth = 1; // Setzen Sie die Liniendicke auf 1 lineEditOption.rect = lineEditRect; // Zeichnen Sie das LineEdit QApplication::style()->drawControl(QStyle::CE_ShapedFrame, &lineEditOption, painter); // Überprüfen Sie, ob der Text leer ist und zeichnen Sie den Platzhaltertext // Zeichnen Sie den Text des LineEdits, considering truncation // Überprüfen Sie, ob der Text leer ist und zeichnen Sie den Platzhaltertext if (lineEditvalue.isEmpty()) { painter->drawText(lineEditOption.rect.adjusted(2, 0, 0, 0), Qt::AlignLeft | Qt::AlignVCenter, "<Empty>"); } else { // Hier wird die maximale Breite des Texts festgelegt, bevor er abgeschnitten wird int maxTextWidth = lineEditRect.width(); // Berechnen Sie die Größe des Texts QFontMetrics fm(painter->font()); QString displayedText = fm.elidedText(lineEditvalue, Qt::ElideRight, maxTextWidth - 10); painter->drawText(lineEditOption.rect.adjusted(2, 0, 0, 0), Qt::AlignLeft | Qt::AlignVCenter, displayedText); } // Berechnen Sie die Position und Größe für die CheckBox QRect checkBoxRect = option.rect; checkBoxRect.setLeft(lineEditRect.right() +35- 22); // Adjust as needed checkBoxRect.setRight(option.rect.right() - 10); // Adjust as needed // Erstellen Sie ein QStyleOptionButton für die CheckBox QStyleOptionButton checkBoxOption; checkBoxOption.state = checkBoxValue ? QStyle::State_On : QStyle::State_Off; checkBoxOption.rect = checkBoxRect; /* //CODE NUR ZUM VISUELLEN DEBUGGEN DER BEREICHE: // Zeichnen Sie ein rotes Rechteck um das LineEdit QPen redPen(Qt::red); painter->setPen(redPen); painter->drawRect(lineEditRect); // Zeichnen Sie ein rotes Rechteck um das LineEdit QPen bluePen(Qt::blue); painter->setPen(bluePen); painter->drawRect(checkBoxRect); */ // Zeichnen Sie die CheckBox QApplication::style()->drawControl(QStyle::CE_CheckBox, &checkBoxOption, painter); } bool ViewLayerItemDelegate::editorEvent(QEvent *event, QAbstractItemModel *model, const QStyleOptionViewItem &option, const QModelIndex &index) { if(event->type() == QEvent::MouseButtonPress) { QMouseEvent *mouseEvent = static_cast<QMouseEvent*>(event); if (const QTreeView* view = qobject_cast<const QTreeView*>(option.widget)) { const QRect itemRect = view->visualRect(index); ClickPosition = mouseEvent->position() - itemRect.topLeft(); // press position in item's coords //QRect itemRect = option.rect; qDebug() << "Click position: " << ClickPosition; qDebug() << "Item Rect: " <<itemRect; if(ClickPosition.x() >= itemRect.width()-35 && ClickPosition.x() <= itemRect.width()-20) { // Invert the state of the checkbox bool value = index.data(Qt::CheckStateRole).toBool(); model->setData(index, !value, Qt::CheckStateRole); } } } // Standardverhalten beibehalten für andere Ereignisse return QStyledItemDelegate::editorEvent(event, model, option, index); } // Slot-Implementierung void ViewLayerItemDelegate::onLineEditTextChanged(const QString &text) { // Hier können Sie die gewünschte Aktion ausführen, wenn der Text im LineEdit bearbeitet wird qDebug() << "LineEdit text changed to:" << text; } void LineEditCheckBoxWidget::mousePressEvent(QMouseEvent *event) { qDebug() << "Test clicked"; this->lineEdit->setStyleSheet("background: transparent;"); QWidget::mousePressEvent(event); } void ViewLayerItemDelegate::setCurrentlyEditedIndex(const QModelIndex &index) { currentlyEditedIndex = index; } delegate.h: #ifndef VIEWLAYERITEMDELEGATE_H #define VIEWLAYERITEMDELEGATE_H #include <QStyledItemDelegate> #include <QModelIndex> #include <QObject> #include <QSize> #include <QLineEdit> #include <QStandardItemModel> #include <QCheckBox> #include <QFormLayout> #include <QLabel> #include <QPushButton> // Definieren Sie das benutzerdefinierte Widget class LineEditCheckBoxWidget : public QWidget { Q_OBJECT public: QLineEdit *lineEdit; QCheckBox *checkBox; QLabel *iconLabel; LineEditCheckBoxWidget(QWidget *parent = nullptr) : QWidget(parent) { QHBoxLayout *layout = new QHBoxLayout(this); layout->setContentsMargins(10,0,20,0); layout->setSpacing(0); lineEdit = new QLineEdit(this); checkBox = new QCheckBox(this); iconLabel = new QLabel(this); // Laden Sie das Icon und setzen Sie es auf das QLabel QPixmap iconPixmap("://resource/quick.png"); // Ersetzen Sie dies durch den Pfad zu Ihrer Icon-Datei QPixmap scaledPixmap = iconPixmap.scaled(32, 32, Qt::KeepAspectRatio, Qt::SmoothTransformation); iconLabel->setPixmap(scaledPixmap); this->setStyleSheet("background-color: transparent"); layout->addWidget(iconLabel); layout->addSpacing(10); layout->addWidget(lineEdit); layout->addSpacing(10); layout->addWidget(checkBox); // Zugriff auf das QLineEdit-Widget und setzen Sie den Hintergrund transparent lineEdit->setStyleSheet("background-color: transparent;"); lineEdit->setFrame(false); lineEdit->setPlaceholderText("<Empty>"); checkBox->setStyleSheet("background-color: transparent"); //QPoint globalPos = checkBox->mapToGlobal(QPoint(0, 0)); //qDebug() << "Global position of checkbox on init: " << globalPos; } // QWidget interface protected: void mousePressEvent(QMouseEvent *event) override; signals: }; class ViewLayerItemDelegate : public QStyledItemDelegate { Q_OBJECT public: explicit ViewLayerItemDelegate(QObject *parent = nullptr); QWidget *createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const override; void setEditorData(QWidget *editor, const QModelIndex &index) const override; void setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const override; void updateEditorGeometry(QWidget *editor, const QStyleOptionViewItem &option, const QModelIndex &index) const override; QSize sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const override; void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const override; bool editorEvent(QEvent *event, QAbstractItemModel *model, const QStyleOptionViewItem &option, const QModelIndex &index) override; QModelIndex currentlyEditedIndex; void setCurrentlyEditedIndex(const QModelIndex &index); //Speichert die Position wo geklickt wurde QPointF ClickPosition; public slots: void onLineEditTextChanged(const QString &text); signals: }; #endif // VIEWLAYERITEMDELEGATE_H

@SGaist I read the qt example "Qt\Examples\Qt-6.5.1\widgets\itemviews\stardelegate". It uses StarDelegate which subclass QStyledItemDelegate, but the staritem size is controled by header. How a custom QStyledItemDelegate can expanding the item size that dones't control by header?

@JacobNovitsky said in warn_unused_result | warning: ignoring return value of ‘int system(const char*)’: @JonB because I see result and dont need in the context numeric result to be returned Of course you do need to look at the result. If it is non-0 you need to investigate and possibly report to user/outside world. For example, if it returns -1 that means creating the new process for the command to be executed fails. How can you not need to notice that? It is a recipe for having potentially bad behaviour at user runtime yet not indicating anything about it and then neither you nor user knows something has gone wrong. That is precisely why someone has bothered to mark the function warn_unused_result. If nothing else maybe do something like qDebug() the result when non-0. Rather than setting a compiler option to suppress warnings on any/all functions with warn_unused_result just for the sake of one system() call somewhere.

@fa_2 said in How to get speed network interface: Does anyone have a solution ? No, Qt has no option for this. You have to go low-level by yourself.

@JacobNovitsky Just follow the example in the documentation Project file. Only 2 lines added QT += core gui greaterThan(QT_MAJOR_VERSION, 4): QT += widgets CONFIG += c++17 # You can make your code fail to compile if it uses deprecated APIs. # In order to do so, uncomment the following line. #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0 CONFIG += precompile_header PRECOMPILED_HEADER = precompiled.h SOURCES += \ main.cpp \ widget.cpp HEADERS += \ widget.h # Default rules for deployment. qnx: target.path = /tmp/$${TARGET}/bin else: unix:!android: target.path = /opt/$${TARGET}/bin !isEmpty(target.path): INSTALLS += target Headers to be precompiled (precompiled.h): // Add C includes here // none in this example #if defined __cplusplus // Add stable C++ includes here #include <QApplication> #include <QPushButton> #include <QLabel> #include <QLineEdit> #endif And the unmodified code of the program: #ifndef WIDGET_H #define WIDGET_H #include <QWidget> class Widget : public QWidget { Q_OBJECT public: Widget(QWidget *parent = nullptr); ~Widget(); }; #endif // WIDGET_H #include "widget.h" #include <QLabel> #include <QPushButton> #include <QLineEdit> #include <QVBoxLayout> Widget::Widget(QWidget *parent) : QWidget(parent) { QVBoxLayout *layout = new QVBoxLayout(this); QLabel *label = new QLabel("Hello, world!"); QPushButton *button = new QPushButton("Hello, button!"); QLineEdit *edit = new QLineEdit("Hello, editor!"); layout->addWidget(label); layout->addWidget(button); layout->addWidget(edit); } Widget::~Widget() { } #include "widget.h" #include <QApplication> int main(int argc, char *argv[]) { QApplication a(argc, argv); Widget w; w.show(); return a.exec(); } Re-run qmake, build, and precompiling/using the headers will happen. Any header not in the precompiled set will be handled normally.

this is what worked for me class CalendarWidget(QtWidgets.QCalendarWidget): def __init__(self, parent=None): super(CalendarWidget, self).__init__(parent, verticalHeaderFormat=QtWidgets.QCalendarWidget.NoVerticalHeader, gridVisible=False) self.setObjectName("patient_visit_date_calendar_widget") prev_button = self.findChild(QtWidgets.QToolButton, "qt_calendar_prevmonth") next_button = self.findChild(QtWidgets.QToolButton, "qt_calendar_nextmonth") # Create QIcon instances for your icons prev_icon = QIcon(":resources/icons/arrow_back.svg") next_icon = QIcon(":resources/icons/arrow_forward.svg") # Set the icons to the buttons prev_button.setIcon(prev_icon) next_button.setIcon(next_icon) for btn in (prev_button, next_button): btn.setIconSize(QtCore.QSize(15, 15)) for d in (QtCore.Qt.Saturday, QtCore.Qt.Sunday,): fmt = self.weekdayTextFormat(d) fmt.setForeground(QtCore.Qt.darkGray) self.setWeekdayTextFormat(d, fmt) self.setStyleSheet(QSS) def paintCell(self, painter, rect, date): if date == self.selectedDate(): painter.save() painter.fillRect(rect, QtGui.QColor("white")) painter.setPen(QtCore.Qt.NoPen) painter.setBrush(QtGui.QColor(10, 186, 181, 100)) r = QtCore.QRect(QtCore.QPoint(), min(rect.width(), rect.height())*QtCore.QSize(1, 1)) r.moveCenter(rect.center()) painter.drawEllipse(r) painter.setPen(QtGui.QPen(QtGui.QColor("white"))) painter.drawText(rect, QtCore.Qt.AlignCenter, str(date.day())) painter.restore() else: super(CalendarWidget, self).paintCell(painter, rect, date)

Did you already start your application with the QT_DEBUG_PLUGINS environment set to one ?

Hi and welcome to devnet, It seems you are missing the libva package on your system. Also, which version of OpenSSL do you have installed ?

Creating a base widget that does that handling is the correct way. However you can't optimize more. Each of your widgets will have custom texts and that's normal so streamlining where the code should be is already a good gain.

@tomas-soltys "I think I need to get access to QSslSocket which can then further provide certificate details" Find QHttpServer source code. I mean QHttpServer.cpp and QHttpServer.h Modify the code so that you can get QSslSocket object. Then you can use: QSslCertificate QSslSocket::peerCertificate() const "Returns the peer's digital certificate (i.e., the immediate certificate of the host you are connected to), or a null certificate, if the peer has not assigned a certificate.". I have question to you: what version of Qt and openssl you use. Look at my post: maybe you can help me to get read of ssl connection issue . Link: https://forum.qt.io/topic/150462/qhttpserver-api-https-openssl-letsencrypt-sslv3-alert-handshake-failure-alert-number-40/6?_=1697291376846