qitemdelegate

I'm trying to implement behavior similar Excel in a QTableView, where a border is painted around the entire current selection. I have tried this what feels like a hundred different ways and keep getting problems. I can draw the border easily enough, but remnants of the border are left whenever the selection changes. Here is one example I've tried in QTableView::paintEvent ... void MyTableView::paintEvent(QPaintEvent* event) { // call QTableView's paint event first so we can draw over it QTableView::paintEvent(event); // activeSelection is a list of indexes that is updated in another function /

I'm doing an implementation of a CheckBox that inherits from QitemDelegate, to put it into a QTableView. the problem is that I get when inserted flush left and I need it centered. As I understand the method that is responsible for the Paint. I have it written as follows: void CheckBoxDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const { bool checkValue; QStyleOptionButton BtnStyle; BtnStyle.state = QStyle::State_Enabled; if(index.model()->data(index, Qt::DisplayRole).toBool() == true) { BtnStyle.state |= QStyle::State_On; checkValue = true;

Background Hi guys. I've made a custom widget with QLineEdit and several QPushButtons to use it with custom item delegate: class LineEditor : public QWidget { public: explicit LineEditor(QWidget *parent = 0) : QWidget(parent) { setLayout(new QHBoxLayout); layout()->setContentsMargins(0, 0, 0, 0); layout()->setSpacing(0); QLineEdit *edit = new QLineEdit(this); layout()->addWidget(edit); layout()->addWidget(new QPushButton(this)); layout()->addWidget(new QPushButton(this)); setFocusProxy(edit); } }; class PropertyDelegate : public QItemDelegate { public: QWidget *createEditor(QWidget *parent,

I followed the Spin Box Delegate tutorial, which Qt provides, to try to implement my own QItemDelegate . It would be used to specify a QComboBox to represent data in a QTableView cell but it is not working. My biggest problem is that I don't know when my QItemDelegate is going to be utilized. when itemModel->setData() is used or when itemModel->setItem() . I would suspect setItem() because I reimplemented a QItemDelegate (emphasis on the "Item") but the tutorial uses setData() and it works fine. I know that if the specified QItemDelegate does not work it uses the default one but how do I now