qitemselectionmodel.cpp File Reference

#include "qitemselectionmodel.h"
#include "qitemselectionmodel_p.h"
#include <private/qitemselectionmodel_p.h>
#include <private/qabstractitemmodel_p.h>
#include <private/qduplicatetracker_p.h>
#include <private/qoffsetstringarray_p.h>
#include <qdebug.h>
#include <algorithm>
#include <functional>
#include "moc_qitemselectionmodel.cpp"

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Classes
struct	RowOrColumnDefinition

Namespaces
namespace	QtFunctionObjects

Functions
static void	rowLengthsFromRange (const QItemSelectionRange &range, QList< QPair< QPersistentModelIndex, uint > > &result)
static bool	isSelectableAndEnabled (Qt::ItemFlags flags)
template<typename ModelIndexContainer >
static void	indexesFromRange (const QItemSelectionRange &range, ModelIndexContainer &result)
template<typename ModelIndexContainer >
static ModelIndexContainer	qSelectionIndexes (const QItemSelection &selection)
static QList< QPair< QPersistentModelIndex, uint > >	qSelectionPersistentRowLengths (const QItemSelection &sel)
static QItemSelection	mergeRowLengths (const QList< QPair< QPersistentModelIndex, uint > > &rowLengths)
static QItemSelection	mergeIndexes (const QList< QPersistentModelIndex > &indexes)
static bool	qt_PersistentModelIndexLessThan (const QPersistentModelIndex &i1, const QPersistentModelIndex &i2)
static bool	selectionIsEmpty (const QItemSelection &selection)
size_t	qHash (const RowOrColumnDefinition &key, size_t seed=0) noexcept
QDebug	operator<< (QDebug dbg, const QItemSelectionRange &range)

Function Documentation

indexesFromRange()

template<typename ModelIndexContainer >

static void indexesFromRange ( const QItemSelectionRange &  range, ModelIndexContainer &  result  )

static

Definition at line 263 of file qitemselectionmodel.cpp.

References QModelIndex::column(), isSelectableAndEnabled(), QModelIndex::row(), and QModelIndex::sibling().

Referenced by QItemSelectionRange::indexes(), and qSelectionIndexes().

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isSelectableAndEnabled()

static bool isSelectableAndEnabled ( Qt::ItemFlags  flags )

static

Definition at line 257 of file qitemselectionmodel.cpp.

References Qt::ItemIsEnabled, and Qt::ItemIsSelectable.

Referenced by QItemSelectionModel::columnIntersectsSelection(), QItemSelection::contains(), indexesFromRange(), QItemSelectionModel::isColumnSelected(), QItemSelectionRange::isEmpty(), QItemSelectionModel::isRowSelected(), QItemSelectionModel::isSelected(), and QItemSelectionModel::rowIntersectsSelection().

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mergeIndexes()

static QItemSelection mergeIndexes ( const QList< QPersistentModelIndex > &  indexes )

static

Merges indexes into an item selection made up of ranges. Assumes that the indexes are sorted.

Definition at line 914 of file qitemselectionmodel.cpp.

References QList< T >::append(), QList< T >::at(), QItemSelectionRange::bottomRight(), QPersistentModelIndex::column(), QModelIndex::column(), i, QPersistentModelIndex::isValid(), next, QModelIndex::parent(), QPersistentModelIndex::parent(), QPersistentModelIndex::row(), QModelIndex::row(), QList< T >::size(), and QItemSelectionRange::topLeft().

Referenced by QItemSelectionModelPrivate::_q_layoutChanged().

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mergeRowLengths()

static QItemSelection mergeRowLengths ( const QList< QPair< QPersistentModelIndex, uint > > &  rowLengths )

static

Definition at line 874 of file qitemselectionmodel.cpp.

References QPersistentModelIndex::column(), i, QPersistentModelIndex::isValid(), next, QPersistentModelIndex::parent(), QPersistentModelIndex::row(), and QPersistentModelIndex::sibling().

Referenced by QItemSelectionModelPrivate::_q_layoutChanged().

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operator<<()

QDebug operator<<	(	QDebug	dbg,
		const QItemSelectionRange &	range
	)

Definition at line 1965 of file qitemselectionmodel.cpp.

qHash()

size_t qHash ( const RowOrColumnDefinition &  key, size_t  seed = 0  )

noexcept

Definition at line 1738 of file qitemselectionmodel.cpp.

References hash, and seed.

qSelectionIndexes()

template<typename ModelIndexContainer >

static ModelIndexContainer qSelectionIndexes ( const QItemSelection &  selection )

static

Definition at line 281 of file qitemselectionmodel.cpp.

References indexesFromRange(), and selection.

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qSelectionPersistentRowLengths()

static QList< QPair< QPersistentModelIndex, uint > > qSelectionPersistentRowLengths ( const QItemSelection &  sel )

static

Definition at line 435 of file qitemselectionmodel.cpp.

References rowLengthsFromRange().

Referenced by QItemSelectionModelPrivate::_q_layoutAboutToBeChanged().

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qt_PersistentModelIndexLessThan()

static bool qt_PersistentModelIndexLessThan ( const QPersistentModelIndex &  i1, const QPersistentModelIndex &  i2  )

static

Sort predicate function for QItemSelectionModelPrivate::_q_layoutChanged(), sorting by parent first in addition to operator<(). This is to prevent fragmentation of the selection by grouping indexes with the same row, column of different parents next to each other, which may happen when a selection spans sub-trees.

Definition at line 985 of file qitemselectionmodel.cpp.

References QPersistentModelIndex::parent().

Referenced by QItemSelectionModelPrivate::_q_layoutChanged().

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rowLengthsFromRange()

static void rowLengthsFromRange ( const QItemSelectionRange &  range, QList< QPair< QPersistentModelIndex, uint > > &  result  )

static

Definition at line 241 of file qitemselectionmodel.cpp.

References QModelIndex::column(), qMakePair(), QModelIndex::row(), and QModelIndex::sibling().

Referenced by qSelectionPersistentRowLengths().

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selectionIsEmpty()

static bool selectionIsEmpty ( const QItemSelection &  selection )

static

Check whether the selection is empty. In contrast to selection.isEmpty(), this takes into account whether items are enabled and whether they are selectable.

Definition at line 1679 of file qitemselectionmodel.cpp.

References QList< T >::begin(), QList< T >::end(), and selection.

Referenced by QItemSelectionModel::hasSelection().

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