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/****************************************************************************
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** Copyright (C) 2016 The Qt Company Ltd.
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** This file is part of the examples of the Qt Toolkit.
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****************************************************************************/
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#include "stardelegate.h"
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#include "stareditor.h"
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#include "starrating.h"
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void StarDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option,
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const QModelIndex &index) const
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if (index.data().canConvert<StarRating>()) {
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StarRating starRating = qvariant_cast<StarRating>(index.data());
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if (option.state & QStyle::State_Selected)
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painter->fillRect(option.rect, option.palette.highlight());
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starRating.paint(painter, option.rect, option.palette,
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StarRating::ReadOnly);
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QStyledItemDelegate::paint(painter, option, index);
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QSize StarDelegate::sizeHint(const QStyleOptionViewItem &option,
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const QModelIndex &index) const
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if (index.data().canConvert<StarRating>()) {
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StarRating starRating = qvariant_cast<StarRating>(index.data());
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return starRating.sizeHint();
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return QStyledItemDelegate::sizeHint(option, index);
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QWidget *StarDelegate::createEditor(QWidget *parent,
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const QStyleOptionViewItem &option,
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const QModelIndex &index) const
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if (index.data().canConvert<StarRating>()) {
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StarEditor *editor = new StarEditor(parent);
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connect(editor, &StarEditor::editingFinished,
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this, &StarDelegate::commitAndCloseEditor);
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return QStyledItemDelegate::createEditor(parent, option, index);
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void StarDelegate::setEditorData(QWidget *editor,
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const QModelIndex &index) const
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if (index.data().canConvert<StarRating>()) {
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StarRating starRating = qvariant_cast<StarRating>(index.data());
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StarEditor *starEditor = qobject_cast<StarEditor *>(editor);
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starEditor->setStarRating(starRating);
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QStyledItemDelegate::setEditorData(editor, index);
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void StarDelegate::setModelData(QWidget *editor, QAbstractItemModel *model,
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const QModelIndex &index) const
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if (index.data().canConvert<StarRating>()) {
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StarEditor *starEditor = qobject_cast<StarEditor *>(editor);
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model->setData(index, QVariant::fromValue(starEditor->starRating()));
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QStyledItemDelegate::setModelData(editor, model, index);
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void StarDelegate::commitAndCloseEditor()
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StarEditor *editor = qobject_cast<StarEditor *>(sender());
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emit commitData(editor);
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emit closeEditor(editor);