#include <qgsattributetablefiltermodel.h>

Inheritance diagram for QgsAttributeTableFilterModel:

Collaboration diagram for QgsAttributeTableFilterModel:

Public Types
enum	FilterMode { ShowAll, ShowSelected, ShowVisible, ShowFilteredList, ShowEdited }

Public Slots
void	extentsChanged ()
	Is called upon every change of the visible extents on the map canvas.

Public Member Functions
	QgsAttributeTableFilterModel (QgsMapCanvas canvas, QgsAttributeTableModel sourceModel, QObject *parent=NULL)
	Make sure, the master model is already loaded, so the selection will get synchronized.
void	setSourceModel (QgsAttributeTableModel *sourceModel)
void	setSelectedOnTop (bool selectedOnTop)
	Changes the sort order of the features.
bool	selectedOnTop ()
	Returns if selected features are currently shown on top.
virtual void	setFilteredFeatures (QgsFeatureIds ids)
	Specify a list of features, which the filter will accept.
void	setFilterMode (FilterMode filterMode)
	Set the filter mode the filter will use.
QgsVectorLayer *	layer () const
	Returns the layer this filter acts on.
QgsVectorLayerCache *	layerCache () const
	Returns the layerCache this filter acts on.
QgsAttributeTableModel *	masterModel () const
	Returns the table model this filter is using.
QgsFeatureId	rowToId (const QModelIndex &row)
	Returns the feature id for a given model index.
QModelIndex	fidToIndex (QgsFeatureId fid)
QModelIndexList	fidToIndexList (QgsFeatureId fid)
virtual QModelIndex	mapToMaster (const QModelIndex &proxyIndex) const
virtual QModelIndex	mapFromMaster (const QModelIndex &sourceIndex) const

Protected Member Functions
bool	filterAcceptsRow (int sourceRow, const QModelIndex &sourceParent) const
	Returns true if the source row will be accepted.
void	generateListOfVisibleFeatures ()
	Updates the list of currently visible features on the map canvas.
bool	lessThan (const QModelIndex &left, const QModelIndex &right) const
	Used by the sorting algorithm.
virtual void	sort (int column, Qt::SortOrder order=Qt::AscendingOrder)
	Sort by the given column using the given order.

Private Slots
void	selectionChanged ()

Private Attributes
QgsFeatureIds	mFilteredFeatures
QgsMapCanvas *	mCanvas
FilterMode	mFilterMode
bool	mSelectedOnTop
QItemSelectionModel *	mMasterSelection
QgsAttributeTableModel *	mTableModel

Detailed Description

Definition at line 31 of file qgsattributetablefiltermodel.h.

Member Enumeration Documentation

enum QgsAttributeTableFilterModel::FilterMode

Enumerator:

ShowAll
ShowSelected
ShowVisible
ShowFilteredList
ShowEdited

Definition at line 36 of file qgsattributetablefiltermodel.h.

Constructor & Destructor Documentation

QgsAttributeTableFilterModel::QgsAttributeTableFilterModel	(	QgsMapCanvas *	canvas,
		QgsAttributeTableModel *	sourceModel,
		QObject *	parent = `NULL`
	)

Make sure, the master model is already loaded, so the selection will get synchronized.

Parameters

parent	parent object (owner)
sourceModel	The QgsAttributeTableModel to use as source (mostly referred to as master model)
canvas	The mapCanvas. Used to identify the currently visible features.

Definition at line 30 of file qgsattributetablefiltermodel.cpp.

References layer(), mMasterSelection, selectionChanged(), setSourceModel(), and QgsAttributeTableModel::SortRole.

Member Function Documentation

void QgsAttributeTableFilterModel::extentsChanged ( )

slot

Is called upon every change of the visible extents on the map canvas.

When a change is signalled, the filter is updated and invalidated if needed.

Definition at line 203 of file qgsattributetablefiltermodel.cpp.

References generateListOfVisibleFeatures().

Referenced by setFilterMode().

QModelIndex QgsAttributeTableFilterModel::fidToIndex ( QgsFeatureId fid )

virtual

Implements QgsFeatureModel.

Definition at line 301 of file qgsattributetablefiltermodel.cpp.

References mapFromMaster(), and masterModel().

QModelIndexList QgsAttributeTableFilterModel::fidToIndexList ( QgsFeatureId fid )

Definition at line 306 of file qgsattributetablefiltermodel.cpp.

References mapFromMaster(), and masterModel().

bool QgsAttributeTableFilterModel::filterAcceptsRow	(	int	sourceRow,
		const QModelIndex &	sourceParent
	)		const

protected

Returns true if the source row will be accepted.

Parameters

sourceRow	row from the source model
sourceParent	parent index in the source model

Definition at line 160 of file qgsattributetablefiltermodel.cpp.

References QgsVectorLayerEditBuffer::addedFeatures(), QgsVectorLayerEditBuffer::changedAttributeValues(), QgsVectorLayer::editBuffer(), layer(), masterModel(), mFilteredFeatures, mFilterMode, rowToId(), QgsAttributeTableModel::rowToId(), QgsVectorLayer::selectedFeaturesIds(), ShowAll, ShowEdited, ShowFilteredList, ShowSelected, and ShowVisible.

void QgsAttributeTableFilterModel::generateListOfVisibleFeatures ( )

protected

Updates the list of currently visible features on the map canvas.

Is called automatically when the filter mode is adjusted or the extents changed.

Definition at line 223 of file qgsattributetablefiltermodel.cpp.

References QgsFeatureRendererV2::capabilities(), QgsFeatureIterator::close(), QgsRenderContext::extent(), QgsMapCanvas::extent(), QgsFeatureRendererV2::Filter, QgsVectorLayerCache::getFeatures(), QgsFeature::id(), layer(), QgsAttributeTableModel::layerCache(), QgsMapCanvas::mapRenderer(), QgsMapRenderer::mapToLayerCoordinates(), QgsRenderContext::mapToPixel(), masterModel(), QgsMapLayer::maximumScale(), mCanvas, mFilteredFeatures, QgsFeatureIterator::nextFeature(), QgsFeatureRequest::NoGeometry, QgsDebugMsg, QgsMapRenderer::rendererContext(), QgsVectorLayer::rendererV2(), QgsMapRenderer::scale(), QgsFeatureRendererV2::ScaleDependent, QgsRenderContext::setExtent(), QgsRenderContext::setMapToPixel(), QgsRenderContext::setRendererScale(), QgsFeatureRendererV2::startRender(), QgsFeatureRendererV2::stopRender(), and QgsFeatureRendererV2::willRenderFeature().

Referenced by extentsChanged(), selectionChanged(), and setFilterMode().

QgsVectorLayer* QgsAttributeTableFilterModel::layer ( ) const

inline

Returns the layer this filter acts on.

Returns: Abovementioned layer

Definition at line 92 of file qgsattributetablefiltermodel.h.

Referenced by QgsAttributeTableView::contextMenuEvent(), QgsFeatureListModel::data(), filterAcceptsRow(), generateListOfVisibleFeatures(), QgsAttributeTableDelegate::layer(), lessThan(), QgsAttributeTableFilterModel(), QgsFeatureListModel::setDisplayExpression(), and QgsAttributeTableView::setModel().

QgsVectorLayerCache* QgsAttributeTableFilterModel::layerCache ( ) const

inline

Returns the layerCache this filter acts on.

Returns: The layer cache

Definition at line 99 of file qgsattributetablefiltermodel.h.

Referenced by QgsFeatureListModel::data(), QgsFeatureListModel::featureByIndex(), and QgsFeatureListModel::layerCache().

bool QgsAttributeTableFilterModel::lessThan	(	const QModelIndex &	left,
		const QModelIndex &	right
	)		const

protected

Used by the sorting algorithm.

Compares the two model indices. Will also consider the selection state of the feature in case selected features are to be shown on top.

Definition at line 43 of file qgsattributetablefiltermodel.cpp.

References layer(), masterModel(), mSelectedOnTop, rowToId(), QgsVectorLayer::selectedFeaturesIds(), and QgsAttributeTableModel::SortRole.

QModelIndex QgsAttributeTableFilterModel::mapFromMaster ( const QModelIndex & sourceIndex ) const

virtual

Definition at line 323 of file qgsattributetablefiltermodel.cpp.

Referenced by QgsFeatureListModel::fidToIdx(), fidToIndex(), fidToIndexList(), and QgsFeatureListModel::mapFromMaster().

QModelIndex QgsAttributeTableFilterModel::mapToMaster ( const QModelIndex & proxyIndex ) const

virtual

Definition at line 317 of file qgsattributetablefiltermodel.cpp.

Referenced by QgsFeatureListModel::mapToMaster().

QgsAttributeTableModel* QgsAttributeTableFilterModel::masterModel ( ) const

inline

Returns the table model this filter is using.

Returns: the table model in quesion

Definition at line 106 of file qgsattributetablefiltermodel.h.

Referenced by QgsFeatureListModel::fidToIdx(), fidToIndex(), fidToIndexList(), filterAcceptsRow(), generateListOfVisibleFeatures(), QgsFeatureListModel::idxToFid(), lessThan(), QgsFeatureListModel::masterModel(), rowToId(), and sort().

QgsFeatureId QgsAttributeTableFilterModel::rowToId ( const QModelIndex & row )

Returns the feature id for a given model index.

Parameters

row	A model index of the row in question

Returns: The feature id of the feature visible in the provided row

Definition at line 296 of file qgsattributetablefiltermodel.cpp.

References masterModel(), and QgsAttributeTableModel::rowToId().

Referenced by filterAcceptsRow(), and lessThan().

bool QgsAttributeTableFilterModel::selectedOnTop ( )

Returns if selected features are currently shown on top.

Returns: True if selected are shown on top

Definition at line 124 of file qgsattributetablefiltermodel.cpp.

References mSelectedOnTop.

Referenced by setSelectedOnTop().

void QgsAttributeTableFilterModel::selectionChanged ( )

privateslot

Definition at line 209 of file qgsattributetablefiltermodel.cpp.

References generateListOfVisibleFeatures(), mFilterMode, mSelectedOnTop, ShowSelected, and sort().

Referenced by QgsAttributeTableFilterModel().

void QgsAttributeTableFilterModel::setFilteredFeatures ( QgsFeatureIds ids )

virtual

Specify a list of features, which the filter will accept.

The filter mode will automatically be adjusted to show only these features (ShowFilteredList).

Parameters

ids	The list of feature ids which will be accepted by the filter

Definition at line 129 of file qgsattributetablefiltermodel.cpp.

References mFilteredFeatures, setFilterMode(), and ShowFilteredList.

Referenced by QgsDualView::setFilteredFeatures().

void QgsAttributeTableFilterModel::setFilterMode ( FilterMode filterMode )

Set the filter mode the filter will use.

Parameters

filterMode Sets the current mode of the filter

Definition at line 136 of file qgsattributetablefiltermodel.cpp.

References extentsChanged(), generateListOfVisibleFeatures(), mCanvas, mFilterMode, ShowSelected, and ShowVisible.

Referenced by setFilteredFeatures(), and QgsDualView::setFilterMode().

void QgsAttributeTableFilterModel::setSelectedOnTop ( bool selectedOnTop )

Changes the sort order of the features.

If set to true, selected features will be sorted on top, regardless of the current sort column

Parameters

selectedOnTop Specify, if selected features should be sorted on top

Definition at line 101 of file qgsattributetablefiltermodel.cpp.

References mSelectedOnTop, selectedOnTop(), and sort().

Referenced by QgsDualView::setSelectedOnTop().

void QgsAttributeTableFilterModel::setSourceModel ( QgsAttributeTableModel * sourceModel )

Definition at line 115 of file qgsattributetablefiltermodel.cpp.

References mMasterSelection, and mTableModel.

Referenced by QgsAttributeTableFilterModel().

void QgsAttributeTableFilterModel::sort	(	int	column,
		Qt::SortOrder	order = `Qt::AscendingOrder`
	)

protectedvirtual

Sort by the given column using the given order.

Prefetches all the data from the layer to speed up sorting.

Parameters

column	The column which should be sorted
order	The order ( Qt::AscendingOrder or Qt::DescendingOrder )

Definition at line 95 of file qgsattributetablefiltermodel.cpp.

References masterModel(), and QgsAttributeTableModel::prefetchColumnData().

Referenced by selectionChanged(), and setSelectedOnTop().

Member Data Documentation

QgsMapCanvas* QgsAttributeTableFilterModel::mCanvas

private

Definition at line 167 of file qgsattributetablefiltermodel.h.

Referenced by generateListOfVisibleFeatures(), and setFilterMode().

QgsFeatureIds QgsAttributeTableFilterModel::mFilteredFeatures

private

Definition at line 166 of file qgsattributetablefiltermodel.h.

Referenced by filterAcceptsRow(), generateListOfVisibleFeatures(), and setFilteredFeatures().

FilterMode QgsAttributeTableFilterModel::mFilterMode

private

Definition at line 168 of file qgsattributetablefiltermodel.h.

Referenced by filterAcceptsRow(), selectionChanged(), and setFilterMode().

QItemSelectionModel* QgsAttributeTableFilterModel::mMasterSelection

private

Definition at line 170 of file qgsattributetablefiltermodel.h.

Referenced by QgsAttributeTableFilterModel(), and setSourceModel().

bool QgsAttributeTableFilterModel::mSelectedOnTop

private

Definition at line 169 of file qgsattributetablefiltermodel.h.

Referenced by lessThan(), selectedOnTop(), selectionChanged(), and setSelectedOnTop().

QgsAttributeTableModel* QgsAttributeTableFilterModel::mTableModel

private

Definition at line 171 of file qgsattributetablefiltermodel.h.

Referenced by setSourceModel().

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

/tmp/buildd/qgis-2.0.1/src/gui/attributetable/qgsattributetablefiltermodel.h
/tmp/buildd/qgis-2.0.1/src/gui/attributetable/qgsattributetablefiltermodel.cpp

Public Types

Public Slots

Public Member Functions

Protected Member Functions

Private Slots

Private Attributes

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation