diff options
Diffstat (limited to 'src/corelib/itemmodels/qsortfilterproxymodel.cpp')
| -rw-r--r-- | src/corelib/itemmodels/qsortfilterproxymodel.cpp | 247 |
1 files changed, 228 insertions, 19 deletions
diff --git a/src/corelib/itemmodels/qsortfilterproxymodel.cpp b/src/corelib/itemmodels/qsortfilterproxymodel.cpp index 6728f0106b..21fbf83382 100644 --- a/src/corelib/itemmodels/qsortfilterproxymodel.cpp +++ b/src/corelib/itemmodels/qsortfilterproxymodel.cpp @@ -146,6 +146,133 @@ private: int end; }; +class RegularExpressionData { + +private: + enum class ExpressionType { + RegExp, +#if QT_CONFIG(regularexpression) + RegularExpression +#endif + }; + +public: + RegularExpressionData() : + m_type(ExpressionType::RegExp) + {} + +#if QT_CONFIG(regularexpression) + QRegularExpression regularExpression() const + { + if (m_type == ExpressionType::RegularExpression) + return m_regularExpression; + return QRegularExpression(); + } + + void setRegularExpression(const QRegularExpression &rx) + { + m_type = ExpressionType::RegularExpression; + m_regularExpression = rx; + m_regExp = QRegExp(); + } +#endif + + QRegExp regExp() const + { + if (m_type == ExpressionType::RegExp) + return m_regExp; + return QRegExp(); + } + + void setRegExp(const QRegExp &rx) + { + m_type = ExpressionType::RegExp; + m_regExp = rx; +#if QT_CONFIG(regularexpression) + m_regularExpression = QRegularExpression(); +#endif + + } + + bool isEmpty() const + { + bool result = true; + switch (m_type) { + case ExpressionType::RegExp: + result = m_regExp.isEmpty(); + break; +#if QT_CONFIG(regularexpression) + case ExpressionType::RegularExpression: + result = m_regularExpression.pattern().isEmpty(); + break; +#endif + } + return result; + } + + Qt::CaseSensitivity caseSensitivity() const + { + Qt::CaseSensitivity sensitivity = Qt::CaseInsensitive; + switch (m_type) { + case ExpressionType::RegExp: + sensitivity = m_regExp.caseSensitivity(); + break; +#if QT_CONFIG(regularexpression) + case ExpressionType::RegularExpression: + { + QRegularExpression::PatternOptions options = m_regularExpression.patternOptions(); + if (!(options & QRegularExpression::CaseInsensitiveOption)) + sensitivity = Qt::CaseSensitive; + } + break; +#endif + } + return sensitivity; + } + + void setCaseSensitivity(Qt::CaseSensitivity cs) + { + switch (m_type) { + case ExpressionType::RegExp: + m_regExp.setCaseSensitivity(cs); + break; +#if QT_CONFIG(regularexpression) + case ExpressionType::RegularExpression: + { + QRegularExpression::PatternOptions options = m_regularExpression.patternOptions(); + options.setFlag(QRegularExpression::CaseInsensitiveOption, cs == Qt::CaseSensitive); + m_regularExpression.setPatternOptions(options); + } + break; +#endif + } + } + + bool hasMatch(const QString &str) const + { + bool result = false; + switch (m_type) { + case ExpressionType::RegExp: + result = str.contains(m_regExp); + break; +#if QT_CONFIG(regularexpression) + case ExpressionType::RegularExpression: + result = str.contains(m_regularExpression); + break; +#endif + } + return result; + } + +private: + ExpressionType m_type; + QRegExp m_regExp; +#if QT_CONFIG(regularexpression) + QRegularExpression m_regularExpression; +#endif +}; + + class QSortFilterProxyModelPrivate : public QAbstractProxyModelPrivate { Q_DECLARE_PUBLIC(QSortFilterProxyModel) @@ -171,7 +298,7 @@ public: int filter_column; int filter_role; - QRegExp filter_regexp; + RegularExpressionData filter_data; QModelIndex last_top_source; bool filter_recursive; @@ -574,6 +701,19 @@ QVector<QPair<int, int > > QSortFilterProxyModelPrivate::proxy_intervals_for_sou proxy_intervals.append(QPair<int, int>(first_proxy_item, last_proxy_item)); } std::stable_sort(proxy_intervals.begin(), proxy_intervals.end()); + // Consolidate adjacent intervals + for (int i = proxy_intervals.size()-1; i > 0; --i) { + QPair<int, int> &interval = proxy_intervals[i]; + QPair<int, int> &preceeding_interval = proxy_intervals[i - 1]; + if (interval.first == preceeding_interval.second + 1) { + preceeding_interval.second = interval.second; + interval.first = interval.second = -1; + } + } + proxy_intervals.erase( + std::remove_if(proxy_intervals.begin(), proxy_intervals.end(), + [](QPair<int, int> &interval) { return interval.first < 0; }), + proxy_intervals.end()); return proxy_intervals; } @@ -1096,7 +1236,7 @@ void QSortFilterProxyModelPrivate::update_persistent_indexes( */ void QSortFilterProxyModelPrivate::filter_about_to_be_changed(const QModelIndex &source_parent) { - if (!filter_regexp.pattern().isEmpty() && + if (!filter_data.isEmpty() && source_index_mapping.constFind(source_parent) == source_index_mapping.constEnd()) create_mapping(source_parent); } @@ -1773,9 +1913,9 @@ void QSortFilterProxyModelPrivate::_q_sourceColumnsMoved( If a parent item doesn't match the filter, none of its children will be shown. - A common use case is to let the user specify the filter regexp, wildcard - pattern, or fixed string in a QLineEdit and to connect the - \l{QLineEdit::textChanged()}{textChanged()} signal to setFilterRegExp(), + A common use case is to let the user specify the filter regular expression, + wildcard pattern, or fixed string in a QLineEdit and to connect the + \l{QLineEdit::textChanged()}{textChanged()} signal to setFilterRegularExpression(), setFilterWildcard(), or setFilterFixedString() to reapply the filter. Custom filtering behavior can be achieved by reimplementing the @@ -1812,6 +1952,21 @@ void QSortFilterProxyModelPrivate::_q_sourceColumnsMoved( \note Some general guidelines for subclassing models are available in the \l{Model Subclassing Reference}. + \note With Qt 5, regular expression support has been improved through the + QRegularExpression class. QSortFilterProxyModel dating back prior to that + class creation, it originally supported only QRegExp. Since Qt 5.12, + QRegularExpression APIs have been added. Therefore, QRegExp APIs should be + considered deprecated and the QRegularExpression version should be used in + place. + + \warning Don't mix calls to the getters and setters of different regexp types + as this will lead to unexpected results. For maximum compatibility, the original + implementation has been kept. Therefore, if, for example, a call to + setFilterRegularExpression is made followed by another one to + setFilterFixedString, the first call will setup a QRegularExpression object + to use as filter while the second will setup a QRegExp in FixedString mode. + However, this is an implementation detail that might change in the future. + \sa QAbstractProxyModel, QAbstractItemModel, {Model/View Programming}, {Basic Sort/Filter Model Example}, {Custom Sort/Filter Model Example}, QIdentityProxyModel */ @@ -2424,17 +2579,47 @@ Qt::SortOrder QSortFilterProxyModel::sortOrder() const QRegExp QSortFilterProxyModel::filterRegExp() const { Q_D(const QSortFilterProxyModel); - return d->filter_regexp; + return d->filter_data.regExp(); } void QSortFilterProxyModel::setFilterRegExp(const QRegExp ®Exp) { Q_D(QSortFilterProxyModel); d->filter_about_to_be_changed(); - d->filter_regexp = regExp; + d->filter_data.setRegExp(regExp); d->filter_changed(); } +#if QT_CONFIG(regularexpression) +/*! + \since 5.12 + \property QSortFilterProxyModel::filterRegularExpression + \brief the QRegularExpression used to filter the contents of the source model + + Setting this property overwrites the current + \l{QSortFilterProxyModel::filterCaseSensitivity}{filterCaseSensitivity}. + By default, the QRegularExpression is an empty string matching all contents. + + If no QRegularExpression or an empty string is set, everything in the source + model will be accepted. + + \sa filterCaseSensitivity, setFilterWildcard(), setFilterFixedString() +*/ +QRegularExpression QSortFilterProxyModel::filterRegularExpression() const +{ + Q_D(const QSortFilterProxyModel); + return d->filter_data.regularExpression(); +} + +void QSortFilterProxyModel::setFilterRegularExpression(const QRegularExpression ®ularExpression) +{ + Q_D(QSortFilterProxyModel); + d->filter_about_to_be_changed(); + d->filter_data.setRegularExpression(regularExpression); + d->filter_changed(); +} +#endif + /*! \property QSortFilterProxyModel::filterKeyColumn \brief the column where the key used to filter the contents of the @@ -2470,16 +2655,16 @@ void QSortFilterProxyModel::setFilterKeyColumn(int column) Qt::CaseSensitivity QSortFilterProxyModel::filterCaseSensitivity() const { Q_D(const QSortFilterProxyModel); - return d->filter_regexp.caseSensitivity(); + return d->filter_data.caseSensitivity(); } void QSortFilterProxyModel::setFilterCaseSensitivity(Qt::CaseSensitivity cs) { Q_D(QSortFilterProxyModel); - if (cs == d->filter_regexp.caseSensitivity()) + if (cs == d->filter_data.caseSensitivity()) return; d->filter_about_to_be_changed(); - d->filter_regexp.setCaseSensitivity(cs); + d->filter_data.setCaseSensitivity(cs); d->filter_changed(); } @@ -2545,11 +2730,34 @@ void QSortFilterProxyModel::setFilterRegExp(const QString &pattern) { Q_D(QSortFilterProxyModel); d->filter_about_to_be_changed(); - d->filter_regexp.setPatternSyntax(QRegExp::RegExp); - d->filter_regexp.setPattern(pattern); + QRegExp rx(pattern); + rx.setCaseSensitivity(d->filter_data.caseSensitivity()); + d->filter_data.setRegExp(rx); d->filter_changed(); } +#if QT_CONFIG(regularexpression) +/*! + \since 5.12 + + Sets the regular expression used to filter the contents + of the source model to \a pattern. + + This method should be preferred for new code as it will use + QRegularExpression internally. + + \sa setFilterCaseSensitivity(), setFilterWildcard(), setFilterFixedString(), filterRegularExpression() +*/ +void QSortFilterProxyModel::setFilterRegularExpression(const QString &pattern) +{ + Q_D(QSortFilterProxyModel); + d->filter_about_to_be_changed(); + QRegularExpression rx(pattern); + d->filter_data.setRegularExpression(rx); + d->filter_changed(); +} +#endif + /*! Sets the wildcard expression used to filter the contents of the source model to the given \a pattern. @@ -2560,8 +2768,8 @@ void QSortFilterProxyModel::setFilterWildcard(const QString &pattern) { Q_D(QSortFilterProxyModel); d->filter_about_to_be_changed(); - d->filter_regexp.setPatternSyntax(QRegExp::Wildcard); - d->filter_regexp.setPattern(pattern); + QRegExp rx(pattern, d->filter_data.caseSensitivity(), QRegExp::Wildcard); + d->filter_data.setRegExp(rx); d->filter_changed(); } @@ -2575,8 +2783,8 @@ void QSortFilterProxyModel::setFilterFixedString(const QString &pattern) { Q_D(QSortFilterProxyModel); d->filter_about_to_be_changed(); - d->filter_regexp.setPatternSyntax(QRegExp::FixedString); - d->filter_regexp.setPattern(pattern); + QRegExp rx(pattern, d->filter_data.caseSensitivity(), QRegExp::FixedString); + d->filter_data.setRegExp(rx); d->filter_changed(); } @@ -2801,14 +3009,15 @@ bool QSortFilterProxyModel::lessThan(const QModelIndex &source_left, const QMode bool QSortFilterProxyModel::filterAcceptsRow(int source_row, const QModelIndex &source_parent) const { Q_D(const QSortFilterProxyModel); - if (d->filter_regexp.isEmpty()) + + if (d->filter_data.isEmpty()) return true; if (d->filter_column == -1) { int column_count = d->model->columnCount(source_parent); for (int column = 0; column < column_count; ++column) { QModelIndex source_index = d->model->index(source_row, column, source_parent); QString key = d->model->data(source_index, d->filter_role).toString(); - if (key.contains(d->filter_regexp)) + if (d->filter_data.hasMatch(key)) return true; } return false; @@ -2817,7 +3026,7 @@ bool QSortFilterProxyModel::filterAcceptsRow(int source_row, const QModelIndex & if (!source_index.isValid()) // the column may not exist return true; QString key = d->model->data(source_index, d->filter_role).toString(); - return key.contains(d->filter_regexp); + return d->filter_data.hasMatch(key); } /*! |