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| |
| #include <QtWidgets> |
| |
| #include "stardelegate.h" |
| #include "stareditor.h" |
| #include "starrating.h" |
| |
| //! [0] |
| void StarDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, |
| const QModelIndex &index) const |
| { |
| if (index.data().canConvert<StarRating>()) { |
| StarRating starRating = qvariant_cast<StarRating>(index.data()); |
| |
| if (option.state & QStyle::State_Selected) |
| painter->fillRect(option.rect, option.palette.highlight()); |
| |
| starRating.paint(painter, option.rect, option.palette, |
| StarRating::EditMode::ReadOnly); |
| } else { |
| QStyledItemDelegate::paint(painter, option, index); |
| } |
| //! [0] |
| } |
| |
| //! [1] |
| QSize StarDelegate::sizeHint(const QStyleOptionViewItem &option, |
| const QModelIndex &index) const |
| { |
| if (index.data().canConvert<StarRating>()) { |
| StarRating starRating = qvariant_cast<StarRating>(index.data()); |
| return starRating.sizeHint(); |
| } |
| return QStyledItemDelegate::sizeHint(option, index); |
| } |
| //! [1] |
| |
| //! [2] |
| QWidget *StarDelegate::createEditor(QWidget *parent, |
| const QStyleOptionViewItem &option, |
| const QModelIndex &index) const |
| |
| { |
| if (index.data().canConvert<StarRating>()) { |
| StarEditor *editor = new StarEditor(parent); |
| connect(editor, &StarEditor::editingFinished, |
| this, &StarDelegate::commitAndCloseEditor); |
| return editor; |
| } |
| return QStyledItemDelegate::createEditor(parent, option, index); |
| } |
| //! [2] |
| |
| //! [3] |
| void StarDelegate::setEditorData(QWidget *editor, |
| const QModelIndex &index) const |
| { |
| if (index.data().canConvert<StarRating>()) { |
| StarRating starRating = qvariant_cast<StarRating>(index.data()); |
| StarEditor *starEditor = qobject_cast<StarEditor *>(editor); |
| starEditor->setStarRating(starRating); |
| } else { |
| QStyledItemDelegate::setEditorData(editor, index); |
| } |
| } |
| //! [3] |
| |
| //! [4] |
| void StarDelegate::setModelData(QWidget *editor, QAbstractItemModel *model, |
| const QModelIndex &index) const |
| { |
| if (index.data().canConvert<StarRating>()) { |
| StarEditor *starEditor = qobject_cast<StarEditor *>(editor); |
| model->setData(index, QVariant::fromValue(starEditor->starRating())); |
| } else { |
| QStyledItemDelegate::setModelData(editor, model, index); |
| } |
| } |
| //! [4] |
| |
| //! [5] |
| void StarDelegate::commitAndCloseEditor() |
| { |
| StarEditor *editor = qobject_cast<StarEditor *>(sender()); |
| emit commitData(editor); |
| emit closeEditor(editor); |
| } |
| //! [5] |