LC::Util::FlattenFilterModel Class Reference

Proxy model flattening a hierarchical model. More...

#include "flattenfiltermodel.h"

Inheritance diagram for LC::Util::FlattenFilterModel:

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Public Member Functions
QModelIndex	index (int, int, const QModelIndex &={}) const override
	Reimplemented from QAbstractItemModel.
QModelIndex	parent (const QModelIndex &) const override
	Reimplemented from QAbstractItemModel.
int	rowCount (const QModelIndex &parent={}) const override
	Reimplemented from QAbstractItemModel.
int	columnCount (const QModelIndex &parent={}) const override
	Reimplemented from QAbstractItemModel.
QVariant	data (const QModelIndex &index, int role=Qt::DisplayRole) const override
	Reimplemented from QAbstractItemModel.
void	SetSource (QAbstractItemModel *model)
	Sets the source model to model.

Protected Member Functions
virtual bool	IsIndexAccepted (const QModelIndex &index) const
	Checks whether the given index should be included in the model.

Protected Attributes
QAbstractItemModel *	Source_ = nullptr
QList< QPersistentModelIndex >	SourceIndexes_

Detailed Description

Proxy model flattening a hierarchical model.

This model takes another model and folds its structure into a flat model, possibly filtering out some rows (via the IsIndexAccepted() method).

Since this model changes the structure of the source model quite a lot, it doesn't derive from QAbstractProxyModel.

Definition at line 27 of file flattenfiltermodel.h.

Member Function Documentation

columnCount()

int LC::Util::FlattenFilterModel::columnCount ( const QModelIndex & parent = {} ) const

override

Reimplemented from QAbstractItemModel.

Definition at line 31 of file flattenfiltermodel.cpp.

References parent().

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data()

QVariant LC::Util::FlattenFilterModel::data ( const QModelIndex & index, int role = Qt::DisplayRole ) const

override

Reimplemented from QAbstractItemModel.

Definition at line 36 of file flattenfiltermodel.cpp.

References LC::Util::Filter(), index(), and SourceIndexes_.

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index()

QModelIndex LC::Util::FlattenFilterModel::index ( int row, int column, const QModelIndex & parent = {} ) const

override

Reimplemented from QAbstractItemModel.

Definition at line 13 of file flattenfiltermodel.cpp.

References LC::Util::Filter(), and parent().

Referenced by data().

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IsIndexAccepted()

bool LC::Util::FlattenFilterModel::IsIndexAccepted ( const QModelIndex & index ) const

protectedvirtual

Checks whether the given index should be included in the model.

Reimplement this function in derived classes to provide filtering capabilities akin to QSortFilterProxyModel.

The children of the index will be checked even if this function returns false for index.

Note

The model operates on rows: that is, only the first column is checked, and index.column() == 0 will always hold.

The default implementation simply returns true.

Parameters

[in]

index

The index of the source model to check.

Returns

Whether the index should be included in the resulting model.

Definition at line 67 of file flattenfiltermodel.cpp.

parent()

QModelIndex LC::Util::FlattenFilterModel::parent ( const QModelIndex & ) const

override

Reimplemented from QAbstractItemModel.

Definition at line 21 of file flattenfiltermodel.cpp.

References LC::Util::Filter().

Referenced by columnCount(), index(), and rowCount().

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rowCount()

int LC::Util::FlattenFilterModel::rowCount ( const QModelIndex & parent = {} ) const

override

Reimplemented from QAbstractItemModel.

Definition at line 26 of file flattenfiltermodel.cpp.

References parent(), and SourceIndexes_.

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SetSource()

void LC::Util::FlattenFilterModel::SetSource

(

QAbstractItemModel *

model

)

Sets the source model to model.

If another source model has been set already, this function rebuilds the whole model, effectively resetting it.

Parameters

[in]

model

The new source model.

Definition at line 41 of file flattenfiltermodel.cpp.

References LC::Util::Filter(), Source_, and SourceIndexes_.

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Member Data Documentation

Source_

QAbstractItemModel* LC::Util::FlattenFilterModel::Source_ = nullptr

protected

Definition at line 30 of file flattenfiltermodel.h.

Referenced by SetSource().

SourceIndexes_

QList<QPersistentModelIndex> LC::Util::FlattenFilterModel::SourceIndexes_

protected

Definition at line 31 of file flattenfiltermodel.h.

Referenced by data(), rowCount(), and SetSource().

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The documentation for this class was generated from the following files:

• /home/abuild/rpmbuild/BUILD/leechcraft-0.6.70-16373-g319c272718/src/util/models/flattenfiltermodel.h
• /home/abuild/rpmbuild/BUILD/leechcraft-0.6.70-16373-g319c272718/src/util/models/flattenfiltermodel.cpp