Hi,

You could check KDE's Kontact application. If I remember correctly they have a journal part that might be of interest.

From what I've seen online, the QValidator approach requires subclassing QItemDelegate and it's setData() method. How is this different from the last point suggested ?

@SGaist This is the solution! Thank you very much. Below is my new setData() and TextEdited()

setData()

bool SummaryModel::setData(const QModelIndex &index, const QVariant &value, int role) { if (index.isValid() && role == Qt::EditRole) { SetSummaryQuantity(value.toInt()); emit dataChanged(index,index); return true; } else { return false; } return false; }

TextEdited()

void QueriesCreator::on_quantityGeneralInformationLineEdit_textEdited(const QString &arg1) { calculations.SetMaterialQuantity(ui->quantityGeneralInformationLineEdit->text().toInt()); CalculateMaterialCostInZloty(); summaryModel->setData(ui->summaryDefaultTableView->model()->index(6,0),ui->quantityGeneralInformationLineEdit->text().toInt(),Qt::EditRole); }

and of course the data()

QVariant SummaryModel::data(const QModelIndex &index, int role) const { if (role == Qt::DisplayRole) { //Quantity if (index.row() == 0 && index.column() == 0) return QString("50"); if (index.row() == 2 && index.column() == 0) return QString("100"); if (index.row() == 4 && index.column() == 0) return QString("1000"); if (index.row() == 6 && index.column() == 0) return GetSummaryQuantity(); //Currency- byc w moze w przyszlosci zmienic na inne if (index.row() == 0 && index.column() == 1) return QString("PLN"); if (index.row() == 1 && index.column() == 1) return QString("EUR"); if (index.row() == 2 && index.column() == 1) return QString("PLN"); if (index.row() == 3 && index.column() == 1) return QString("EUR"); if (index.row() == 4 && index.column() == 1) return QString("PLN"); if (index.row() == 5 && index.column() == 1) return QString("EUR"); if (index.row() == 6 && index.column() == 1) return QString("PLN"); if (index.row() == 7 && index.column() == 1) return QString("EUR"); //Price Placeholders //Material if (index.row() == 0 && index.column() == 2) return QString("0,00"); if (index.row() == 1 && index.column() == 2) return QString("0,00"); if (index.row() == 2 && index.column() == 2) return QString("0,00"); if (index.row() == 3 && index.column() == 2) return QString("0,00"); if (index.row() == 4 && index.column() == 2) return QString("0,00"); if (index.row() == 5 && index.column() == 2) return QString("0,00"); if (index.row() == 6 && index.column() == 2) return QString("0,00"); if (index.row() == 7 && index.column() == 2) return QString("0,00"); //Machining if (index.row() == 0 && index.column() == 3) return QString("0,00"); if (index.row() == 1 && index.column() == 3) return QString("0,00"); if (index.row() == 2 && index.column() == 3) return QString("0,00"); if (index.row() == 3 && index.column() == 3) return QString("0,00"); if (index.row() == 4 && index.column() == 3) return QString("0,00"); if (index.row() == 5 && index.column() == 3) return QString("0,00"); if (index.row() == 6 && index.column() == 3) return QString("0,00"); if (index.row() == 7 && index.column() == 3) return QString("0,00"); //Diference if (index.row() == 0 && index.column() == 4) return QString("0,00"); if (index.row() == 1 && index.column() == 4) return QString("0,00"); if (index.row() == 2 && index.column() == 4) return QString("0,00"); if (index.row() == 3 && index.column() == 4) return QString("0,00"); if (index.row() == 4 && index.column() == 4) return QString("0,00"); if (index.row() == 5 && index.column() == 4) return QString("0,00"); if (index.row() == 6 && index.column() == 4) return QString("0,00"); if (index.row() == 7 && index.column() == 4) return QString("0,00"); } if(role==Qt::TextAlignmentRole) { return Qt::AlignCenter; } return QVariant(); }

Now It works as I expect. Thanks and Have a good day!

@ChrisW67 Thanks ! The resizing works but screen.availableGeometry().size() is giving the incorrect size (much too big). I tried a variety of other ways but can't seem to get the correct available size even when running it after the widget is displayed using a timer as suggested.

@jsulm said in QTableView clicked() not triggering when dragging and selecting a range of data in the table?:

@R-P-H Mouse click means that mouse button was pressed AND released over same widget. Pressing mouse button down over one widget and releasing it over another isn't a click.
You can use https://doc.qt.io/qt-6/qabstractitemview.html#pressed

pressed() worked for me. Thanks !

The short version would be to add a set_i2c_data method to your model, update the data frame in it and then emit the dataChanged signal as last step of that method.

Could you share a minimal example please?

@CuriousPan I have fixed the issue.
I used pretty dirty, but working trick: set Qt::AlignedCenter right in the delegate:

void CenteredCheckBoxDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const { QStyleOptionViewItem opt = option; const QWidget *widget = option.widget; initStyleOption(&opt, index); QStyle *style = opt.widget ? opt.widget->style() : QApplication::style(); style->drawPrimitive(QStyle::PE_PanelItemViewItem, &opt, painter, widget); if (opt.features & QStyleOptionViewItem::HasCheckIndicator) { switch (opt.checkState) { case Qt::Unchecked: opt.state |= QStyle::State_Off; break; case Qt::PartiallyChecked: opt.state |= QStyle::State_NoChange; break; case Qt::Checked: opt.state |= QStyle::State_On; break; } auto rect = style->subElementRect(QStyle::SE_ItemViewItemCheckIndicator, &opt, widget); opt.rect = QStyle::alignedRect(opt.direction, Qt::AlignCenter/*index.data(Qt::TextAlignmentRole).value<Qt::Alignment>()*/, rect.size(), opt.rect); opt.state = opt.state & ~QStyle::State_HasFocus; style->drawPrimitive(QStyle::PE_IndicatorItemViewItemCheck, &opt, painter, widget); } else if (!opt.icon.isNull()) { // draw the icon QRect iconRect = style->subElementRect(QStyle::SE_ItemViewItemDecoration, &opt, widget); iconRect = QStyle::alignedRect(opt.direction, Qt::AlignCenter/*index.data(Qt::TextAlignmentRole).value<Qt::Alignment>()*/, iconRect.size(), opt.rect); QIcon::Mode mode = QIcon::Normal; if (!(opt.state & QStyle::State_Enabled)) mode = QIcon::Disabled; else if (opt.state & QStyle::State_Selected) mode = QIcon::Selected; QIcon::State state = opt.state & QStyle::State_Open ? QIcon::On : QIcon::Off; opt.icon.paint(painter, iconRect, opt.decorationAlignment, mode, state); } else { QStyledItemDelegate::paint(painter, option, index); } } bool CenteredCheckBoxDelegate::editorEvent(QEvent *event, QAbstractItemModel *model, const QStyleOptionViewItem &option, const QModelIndex &index) { Q_ASSERT(event); Q_ASSERT(model); // make sure that the item is checkable Qt::ItemFlags flags = model->flags(index); if (!(flags & Qt::ItemIsUserCheckable) || !(option.state & QStyle::State_Enabled) || !(flags & Qt::ItemIsEnabled)) return false; // make sure that we have a check state QVariant value = index.data(Qt::CheckStateRole); if (!value.isValid()) return false; const QWidget *widget = option.widget; QStyle *style = option.widget ? widget->style() : QApplication::style(); // make sure that we have the right event type if ((event->type() == QEvent::MouseButtonRelease) || (event->type() == QEvent::MouseButtonDblClick) || (event->type() == QEvent::MouseButtonPress)) { QStyleOptionViewItem viewOpt(option); initStyleOption(&viewOpt, index); QRect checkRect = style->subElementRect(QStyle::SE_ItemViewItemCheckIndicator, &viewOpt, widget); checkRect = QStyle::alignedRect(viewOpt.direction, Qt::AlignCenter/*index.data(Qt::TextAlignmentRole).value<Qt::Alignment>()*/, checkRect.size(), viewOpt.rect); QMouseEvent *me = static_cast<QMouseEvent *>(event); if (me->button() != Qt::LeftButton || !checkRect.contains(me->pos())) return false; if ((event->type() == QEvent::MouseButtonPress) || (event->type() == QEvent::MouseButtonDblClick)) return true; } else if (event->type() == QEvent::KeyPress) { if (static_cast<QKeyEvent *>(event)->key() != Qt::Key_Space && static_cast<QKeyEvent *>(event)->key() != Qt::Key_Select) return false; } else { return false; } Qt::CheckState state = static_cast<Qt::CheckState>(value.toInt()); if (flags & Qt::ItemIsUserTristate) state = ((Qt::CheckState)((state + 1) % 3)); else state = (state == Qt::Checked) ? Qt::Unchecked : Qt::Checked; return model->setData(index, state, Qt::CheckStateRole); }

Thanks everyone who took part in the discussion.

Hi,

You have the model index, so if it's the left most one, draw the left round corners and if it's the right most one, draw the right rounded corner.

The other option is to use one delegate for the first and last column to do the special painting. Note that this is not the correct solution if your users can reorder the columns.

I fixed it with:

setStyleSheet("QHeaderView::section{ padding-left: 4px; padding-top: 1; padding-bottom: 1; }");

The documentation about stylesheets is for me not the best one from qt .. nevermind

@mrjj Thank you. Yes with an own signal + slot for the switch it is working

Thanks for the reply @SGaist . This helps

@mrjj . Thanks a ton for your help. Its working perfectly.

@VRonin You're right, that was it... I am quite new to concurrency, so I thank you for your insights. I ended up loading the rows in the thread and adding them in the finished slot instead, which fixed both problems.

@Christian-Ehrlicher Good habit. I need to work on developing one.

Post copied from https://www.reddit.com/r/QtFramework/comments/fx6jfu/why_qt_is_so_underrated_among_developers/

@Thank-You said in Creating custom model for QTableView:

I want to add one row at the end of the table as show in the above picture

Help me guys

Already told you what you need to do. What help are you expecting? We don't write the code for you (we also have a lot of work to do!), we tell you what you need to do.