LC::Util::FlattenFilterModel Class Reference

Proxy model flattening a hierarchical model. More...

#include "flattenfiltermodel.h"

Inheritance diagram for LC::Util::FlattenFilterModel:

Collaboration diagram for LC::Util::FlattenFilterModel:

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

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

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 33 of file flattenfiltermodel.h.

Member Function Documentation

columnCount()

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

override

Reimplemented from QAbstractItemModel.

Definition at line 37 of file flattenfiltermodel.cpp.

References index(), and SourceIndexes_.

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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 42 of file flattenfiltermodel.cpp.

References Source_.

index()

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

override

Reimplemented from QAbstractItemModel.

Definition at line 19 of file flattenfiltermodel.cpp.

Referenced by columnCount(), and IsIndexAccepted().

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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 73 of file flattenfiltermodel.cpp.

References index(), parent(), Source_, and SourceIndexes_.

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parent()

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

override

Reimplemented from QAbstractItemModel.

Definition at line 27 of file flattenfiltermodel.cpp.

References SourceIndexes_.

Referenced by IsIndexAccepted(), and rowCount().

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rowCount()

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

override

Reimplemented from QAbstractItemModel.

Definition at line 32 of file flattenfiltermodel.cpp.

References parent().

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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 47 of file flattenfiltermodel.cpp.

Member Data Documentation

Source_

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

protected

Definition at line 42 of file flattenfiltermodel.h.

Referenced by data(), and IsIndexAccepted().

SourceIndexes_

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

protected

Definition at line 43 of file flattenfiltermodel.h.

Referenced by columnCount(), IsIndexAccepted(), and parent().

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

• /home/d34df00d/leechcraft/src/util/models/flattenfiltermodel.h
• /home/d34df00d/leechcraft/src/util/models/flattenfiltermodel.cpp