16#include <QItemSelectionModel>
17#include <QApplication>
40 : QSortFilterProxyModel( parent )
44 setDynamicSortFilter(
true );
48 mReloadVisibleTimer.setSingleShot(
true );
49 connect( &mReloadVisibleTimer, &QTimer::timeout,
this, &QgsAttributeTableFilterModel::reloadVisible );
50 mFilterFeaturesTimer.setSingleShot(
true );
61 if ( leftSelected && !rightSelected )
63 return sortOrder() == Qt::AscendingOrder;
65 else if ( rightSelected && !leftSelected )
67 return sortOrder() == Qt::DescendingOrder;
83 if ( order != Qt::AscendingOrder && order != Qt::DescendingOrder )
84 order = Qt::AscendingOrder;
85 if ( column < 0 || column >= mColumnMapping.size() )
91 const int myColumn = mColumnMapping.at( column );
93 QSortFilterProxyModel::sort( myColumn, order );
100 if ( mapColumnToSource( index.column() ) == -1 )
106 const QModelIndex fieldIndex = QSortFilterProxyModel::mapToSource( QSortFilterProxyModel::index( index.row(), 0, index.parent() ) );
113 return QSortFilterProxyModel::data( index, role );
118 if ( orientation == Qt::Horizontal )
120 if ( mColumnMapping.at( section ) == -1 && role == Qt::DisplayRole )
121 return tr(
"Actions" );
124 const int sourceSection = mapColumnToSource( section );
125 return sourceModel()->headerData( sourceSection, orientation, role );
130 if ( role == Qt::DisplayRole )
134 const int sourceSection =
mapToSource( index( section, ( !mColumnMapping.isEmpty() && mColumnMapping.at( 0 ) == -1 ) ? 1 : 0 ) ).row();
135 return sourceModel()->headerData( sourceSection, orientation, role );
142 return mColumnMapping.indexOf( -1 );
148 return mColumnMapping.count();
162 QVector<int> newColumnMapping;
163 const auto constColumns = mConfig.
columns();
167 if ( columnConfig.hidden )
172 newColumnMapping << newValue;
175 if ( newColumnMapping != mColumnMapping )
177 bool requiresReset =
false;
178 int firstRemovedColumn = -1;
179 int removedColumnCount = 0;
182 for (
int i = 0; i < std::min( newColumnMapping.size(), mColumnMapping.size() - removedColumnCount ); ++i )
184 if ( newColumnMapping.at( i ) == mColumnMapping.at( i + removedColumnCount ) )
187 if ( firstRemovedColumn == -1 )
189 firstRemovedColumn = i;
191 while ( i < mColumnMapping.size() - removedColumnCount && mColumnMapping.at( i + removedColumnCount ) != newColumnMapping.at( i ) )
193 ++removedColumnCount;
198 requiresReset =
true;
204 if ( firstRemovedColumn == -1 )
206 if ( newColumnMapping.size() > mColumnMapping.size() )
209 beginInsertColumns( QModelIndex(), mColumnMapping.size(), newColumnMapping.size() - 1 );
210 mColumnMapping = newColumnMapping;
216 beginRemoveColumns( QModelIndex(), newColumnMapping.size(), mColumnMapping.size() - 1 );
217 mColumnMapping = newColumnMapping;
223 if ( newColumnMapping.size() == mColumnMapping.size() - removedColumnCount )
226 beginRemoveColumns( QModelIndex(), firstRemovedColumn, firstRemovedColumn + removedColumnCount - 1 );
227 mColumnMapping = newColumnMapping;
232 requiresReset =
true;
239 mColumnMapping = newColumnMapping;
250 mFilterExpression = expression;
251 mFilterExpressionContext = context;
256 if ( order != Qt::AscendingOrder && order != Qt::DescendingOrder )
257 order = Qt::AscendingOrder;
259 QSortFilterProxyModel::sort( -1 );
261 QSortFilterProxyModel::sort( 0, order );
274 int column = sortColumn();
275 Qt::SortOrder order = sortOrder();
281 if ( order != Qt::AscendingOrder && order != Qt::DescendingOrder )
282 order = Qt::AscendingOrder;
284 sort( column, order );
291 mTableModel = sourceModel;
295 mColumnMapping.append( i );
298 QSortFilterProxyModel::setSourceModel( sourceModel );
301 disconnect( mTableModel, SIGNAL( columnsAboutToBeInserted( QModelIndex,
int,
int ) ),
this, SLOT( _q_sourceColumnsAboutToBeInserted( QModelIndex,
int,
int ) ) );
302 disconnect( mTableModel, SIGNAL( columnsInserted( QModelIndex,
int,
int ) ),
this, SLOT( _q_sourceColumnsInserted( QModelIndex,
int,
int ) ) );
303 disconnect( mTableModel, SIGNAL( columnsAboutToBeRemoved( QModelIndex,
int,
int ) ),
this, SLOT( _q_sourceColumnsAboutToBeRemoved( QModelIndex,
int,
int ) ) );
304 disconnect( mTableModel, SIGNAL( columnsRemoved( QModelIndex,
int,
int ) ),
this, SLOT( _q_sourceColumnsRemoved( QModelIndex,
int,
int ) ) );
306 connect( mTableModel, &QAbstractItemModel::columnsAboutToBeInserted,
this, &QgsAttributeTableFilterModel::onColumnsChanged );
307 connect( mTableModel, &QAbstractItemModel::columnsAboutToBeRemoved,
this, &QgsAttributeTableFilterModel::onColumnsChanged );
313 return mSelectedOnTop;
318 mFilteredFeatures = ids;
330 ids.reserve( rowCount() );
331 for (
int i = 0; i < rowCount(); ++i )
333 const QModelIndex row = index( i, 0 );
358 switch ( mFilterMode )
406 Q_UNUSED( sourceParent )
407 switch ( mFilterMode )
455void QgsAttributeTableFilterModel::reloadVisible()
462void QgsAttributeTableFilterModel::onAttributeValueChanged(
QgsFeatureId fid,
int idx,
const QVariant &value )
469 startTimedFilterFeatures();
473void QgsAttributeTableFilterModel::onGeometryChanged()
477 startTimedFilterFeatures();
481void QgsAttributeTableFilterModel::startTimedReloadVisible()
483 mReloadVisibleTimer.start( 10 );
486void QgsAttributeTableFilterModel::startTimedFilterFeatures()
488 mFilterFeaturesTimer.start( 10 );
493 if ( !mFilterExpression.
isValid() )
504 QApplication::setOverrideCursor( Qt::WaitCursor );
530 if ( mFilterExpression.
evaluate( &mFilterExpressionContext ).toInt() != 0 )
534 if ( mFilterExpression.
hasEvalError() && error.isEmpty() )
544 QApplication::restoreOverrideCursor();
548 if ( ! error.isEmpty() )
556void QgsAttributeTableFilterModel::selectionChanged()
562 else if ( mSelectedOnTop )
568void QgsAttributeTableFilterModel::onColumnsChanged()
573int QgsAttributeTableFilterModel::mapColumnToSource(
int column )
const
575 if ( mColumnMapping.isEmpty() )
577 if ( column < 0 || column >= mColumnMapping.size() )
580 return mColumnMapping.at( column );
583int QgsAttributeTableFilterModel::mapColumnFromSource(
int column )
const
585 if ( mColumnMapping.isEmpty() )
588 return mColumnMapping.indexOf( column );
601 mFilteredFeatures.clear();
602 if ( !
layer()->renderer() )
608 std::unique_ptr< QgsFeatureRenderer > renderer(
layer()->renderer()->clone() );
631 renderer->startRender( renderContext,
layer()->fields() );
644 if ( canvasFilter == QLatin1String(
"FALSE" ) )
646 if ( !canvasFilter.isEmpty() )
656 if ( !filter || renderer->willRenderFeature( f, renderContext ) )
658 mFilteredFeatures << f.
id();
661 if ( t.elapsed() > 5000 )
664 emit progress( i, cancel );
677 renderer->stopRender( renderContext );
693 QModelIndexList indexes;
695 for (
const QModelIndex &idx : constIdToIndexList )
705 if ( !proxyIndex.isValid() )
706 return QModelIndex();
708 int sourceColumn = mapColumnToSource( proxyIndex.column() );
711 if ( sourceColumn == -1 )
712 return QModelIndex();
714 return QSortFilterProxyModel::mapToSource( index( proxyIndex.row(), sourceColumn, proxyIndex.parent() ) );
719 const QModelIndex proxyIndex = QSortFilterProxyModel::mapFromSource( sourceIndex );
721 if ( proxyIndex.column() < 0 )
722 return QModelIndex();
724 int col = mapColumnFromSource( proxyIndex.column() );
729 return index( proxyIndex.row(), col, proxyIndex.parent() );
735 if ( mapColumnToSource( index.column() ) == -1 )
736 return Qt::ItemIsEnabled | Qt::ItemIsSelectable;
738 const QModelIndex source_index =
mapToSource( index );
744 if ( !proxyIndex.isValid() )
745 return QModelIndex();
747 int sourceColumn = mapColumnToSource( proxyIndex.column() );
751 if ( sourceColumn == -1 )
754 return QSortFilterProxyModel::mapToSource( index( proxyIndex.row(), sourceColumn, proxyIndex.parent() ) );
@ NoGeometry
Geometry is not required. It may still be returned if e.g. required for a filter condition.
@ BoundingBox
Filter using a bounding box.
This is a container for configuration of the attribute table.
@ Action
This column represents an action widget.
Qt::SortOrder sortOrder() const
Gets the sort order.
QVector< QgsAttributeTableConfig::ColumnConfig > columns() const
Gets the list with all columns and their configuration.
void update(const QgsFields &fields)
Update the configuration with the given fields.
QString sortExpression() const
Gets the expression used for sorting.
bool hasSameColumns(const QgsAttributeTableConfig &other) const
Compare this configuration's columns name, type, and order to other.
QModelIndex mapToSource(const QModelIndex &proxyIndex) const override
QString sortExpression() const
The expression which is used to sort the attribute table.
FilterMode filterMode()
The current filterModel.
QModelIndex mapFromSource(const QModelIndex &sourceIndex) const override
Q_DECL_DEPRECATED void extentsChanged()
Is called upon every change of the visible extents on the map canvas.
void sort(int column, Qt::SortOrder order=Qt::AscendingOrder) override
Sort by the given column using the given order.
QgsAttributeTableFilterModel(QgsMapCanvas *canvas, QgsAttributeTableModel *sourceModel, QObject *parent=nullptr)
Make sure, the master model is already loaded, so the selection will get synchronized.
void setFilterMode(FilterMode filterMode)
Set the filter mode the filter will use.
int columnCount(const QModelIndex &parent) const override
void setAttributeTableConfig(const QgsAttributeTableConfig &config, bool force=false)
Set the attribute table configuration to control which fields are shown, in which order they are show...
void generateListOfVisibleFeatures()
Updates the list of currently visible features on the map canvas.
QModelIndexList fidToIndexList(QgsFeatureId fid)
void disconnectFilterModeConnections()
Disconnect the connections set for the current filterMode.
@ Type
The type of a given column.
QModelIndex fidToIndex(QgsFeatureId fid) override
bool lessThan(const QModelIndex &left, const QModelIndex &right) const override
Used by the sorting algorithm.
FilterMode
The filter mode defines how the rows should be filtered.
@ ShowFilteredList
Show only features whose ids are on the filter list. {.
@ ShowVisible
Show only visible features (depends on the map canvas)
@ ShowSelected
Show only selected features.
@ ShowInvalid
Show only features not respecting constraints.
@ ShowEdited
Show only features which have unsaved changes.
@ ShowAll
Show all features.
bool selectedOnTop()
Returns if selected features are currently shown on top.
void filterError(const QString &errorMessage)
Emitted when an error occurred while filtering features.
bool filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const override
Returns true if the source row will be accepted.
QModelIndex mapFromMaster(const QModelIndex &sourceIndex) const
void filterFeatures()
Updates the filtered features in the filter model.
int actionColumnIndex() const
Gets the index of the first column that contains an action widget.
void setFilterExpression(const QgsExpression &expression, const QgsExpressionContext &context)
Set the expression and the context to be stored in case of the features need to be filtered again (li...
virtual void setFilteredFeatures(const QgsFeatureIds &ids)
Specify a list of features, which the filter will accept.
QgsFeatureId rowToId(const QModelIndex &row)
Returns the feature id for a given model index.
QgsAttributeTableModel * masterModel() const
Returns the table model this filter is using.
QVariant headerData(int section, Qt::Orientation orientation, int role) const override
QVariant data(const QModelIndex &index, int role) const override
QModelIndex mapToMaster(const QModelIndex &proxyIndex) const
void featuresFiltered()
Emitted when the filtering of the features has been done.
void visibleReloaded()
Emitted when the the visible features on extend are reloaded (the list is created)
@ ColumnTypeActionButton
This column shows action buttons.
@ ColumnTypeField
This column shows a field.
QgsFeatureIds filteredFeatures()
Gets a list of currently filtered feature ids.
void setSourceModel(QgsAttributeTableModel *sourceModel)
Set the attribute table model that backs this model.
QgsVectorLayer * layer() const
Returns the layer this filter acts on.
void setSelectedOnTop(bool selectedOnTop)
Changes the sort order of the features.
void sortColumnChanged(int column, Qt::SortOrder order)
Emitted whenever the sort column is changed.
void connectFilterModeConnections(FilterMode filterMode)
Disconnect the connections set for the new filterMode.
Qt::ItemFlags flags(const QModelIndex &index) const override
A model backed by a QgsVectorLayerCache which is able to provide feature/attribute information to a Q...
const QgsFeatureRequest & request() const
Gets the the feature request.
Qt::ItemFlags flags(const QModelIndex &index) const override
Returns item flags for the index.
QString sortCacheExpression(unsigned long cacheIndex=0) const
The expression which was used to fill the sorting cache at index cacheIndex.
QgsVectorLayer * layer() const
Returns the layer this model uses as backend.
int extraColumns() const
Empty extra columns to announce from this model.
QgsVectorLayerCache * layerCache() const
Returns the layer cache this model uses as backend.
int columnCount(const QModelIndex &parent=QModelIndex()) const override
Returns the number of columns.
QModelIndexList idToIndexList(QgsFeatureId id) const
void prefetchSortData(const QString &expression, unsigned long cacheIndex=0)
Prefetches the entire data for an expression.
QgsFeatureId rowToId(int row) const
Maps row to feature id.
void prefetchColumnData(int column)
Caches the entire data for one column.
@ FeatureId
Get the feature id of the feature in this row.
@ Sort
Role used for sorting start here.
A general purpose distance and area calculator, capable of performing ellipsoid based calculations.
void setSourceCrs(const QgsCoordinateReferenceSystem &crs, const QgsCoordinateTransformContext &context)
Sets source spatial reference system crs.
bool setEllipsoid(const QString &ellipsoid)
Sets the ellipsoid by its acronym.
static QList< QgsExpressionContextScope * > globalProjectLayerScopes(const QgsMapLayer *layer)
Creates a list of three scopes: global, layer's project and layer.
Expression contexts are used to encapsulate the parameters around which a QgsExpression should be eva...
void setFeature(const QgsFeature &feature)
Convenience function for setting a feature for the context.
void appendScopes(const QList< QgsExpressionContextScope * > &scopes)
Appends a list of scopes to the end of the context.
Class for parsing and evaluation of expressions (formerly called "search strings").
QString evalErrorString() const
Returns evaluation error.
QSet< QString > referencedColumns() const
Gets list of columns referenced by the expression.
void setDistanceUnits(Qgis::DistanceUnit unit)
Sets the desired distance units for calculations involving geomCalculator(), e.g.,...
void setAreaUnits(Qgis::AreaUnit unit)
Sets the desired areal units for calculations involving geomCalculator(), e.g., "$area".
void setGeomCalculator(const QgsDistanceArea *calc)
Sets the geometry calculator used for distance and area calculations in expressions.
bool hasEvalError() const
Returns true if an error occurred when evaluating last input.
bool needsGeometry() const
Returns true if the expression uses feature geometry for some computation.
QVariant evaluate()
Evaluate the feature and return the result.
bool isValid() const
Checks if this expression is valid.
QSet< int > referencedAttributeIndexes(const QgsFields &fields) const
Returns a list of field name indexes obtained from the provided fields.
Wrapper for iterator of features from vector data provider or vector layer.
bool nextFeature(QgsFeature &f)
Fetch next feature and stores in f, returns true on success.
bool close()
Call to end the iteration.
@ ScaleDependent
Depends on scale if feature will be rendered (rule based )
@ Filter
Features may be filtered, i.e. some features may not be rendered (categorized, rule based ....
This class wraps a request for features to a vector layer (or directly its vector data provider).
QgsFeatureRequest & setFlags(Qgis::FeatureRequestFlags flags)
Sets flags that affect how features will be fetched.
QgsRectangle filterRect() const
Returns the rectangle from which features will be taken.
Qgis::FeatureRequestFlags flags() const
Returns the flags which affect how features are fetched.
QgsFeatureRequest & setSubsetOfAttributes(const QgsAttributeList &attrs)
Set a subset of attributes that will be fetched.
QgsFeatureRequest & setFilterExpression(const QString &expression)
Set the filter expression.
Qgis::SpatialFilterType spatialFilterType() const
Returns the spatial filter type which is currently set on this request.
QgsFeatureRequest & setFilterRect(const QgsRectangle &rectangle)
Sets the rectangle from which features will be taken.
The feature class encapsulates a single feature including its unique ID, geometry and a list of field...
Q_INVOKABLE int lookupField(const QString &fieldName) const
Looks up field's index from the field name.
static QString filterForLayer(QgsMapCanvas *canvas, QgsVectorLayer *layer)
Constructs a filter to use for selecting features from the given layer, in order to apply filters whi...
Map canvas is a class for displaying all GIS data types on a canvas.
void extentsChanged()
Emitted when the extents of the map change.
void temporalRangeChanged()
Emitted when the map canvas temporal range changes.
const QgsMapSettings & mapSettings() const
Gets access to properties used for map rendering.
QgsRectangle extent() const
Returns the current zoom extent of the map canvas.
QgsCoordinateReferenceSystem crs
The QgsMapSettings class contains configuration for rendering of the map.
double scale() const
Returns the calculated map scale.
const QgsMapToPixel & mapToPixel() const
QgsRectangle visibleExtent() const
Returns the actual extent derived from requested extent that takes output image size into account.
QgsPointXY mapToLayerCoordinates(const QgsMapLayer *layer, QgsPointXY point) const
transform point coordinates from output CRS to layer's CRS
static QgsProject * instance()
Returns the QgsProject singleton instance.
QgsCoordinateTransformContext transformContext
A rectangle specified with double values.
QgsRectangle intersect(const QgsRectangle &rect) const
Returns the intersection with the given rectangle.
Contains information about the context of a rendering operation.
QgsExpressionContext & expressionContext()
Gets the expression context.
void setExtent(const QgsRectangle &extent)
When rendering a map layer, calling this method sets the "clipping" extent for the layer (in the laye...
void setMapToPixel(const QgsMapToPixel &mtp)
Sets the context's map to pixel transform, which transforms between map coordinates and device coordi...
void setRendererScale(double scale)
Sets the renderer map scale.
QgsFeatureIterator getFeatures(const QgsFeatureRequest &featureRequest=QgsFeatureRequest())
Query this VectorLayerCache for features.
Stores queued vector layer edit operations prior to committing changes to the layer's data provider.
bool isFeatureAdded(QgsFeatureId id) const
Returns true if the specified feature ID has been added but not committed.
bool isFeatureAttributesChanged(QgsFeatureId id) const
Returns true if the specified feature ID has had an attribute changed but not committed.
bool isFeatureGeometryChanged(QgsFeatureId id) const
Returns true if the specified feature ID has had its geometry changed but not committed.
QgsFeatureIterator getFeatures(const QgsFeatureRequest &request=QgsFeatureRequest()) const FINAL
Queries the layer for features specified in request.
Q_INVOKABLE const QgsFeatureIds & selectedFeatureIds() const
Returns a list of the selected features IDs in this layer.
Q_INVOKABLE QgsVectorLayerEditBuffer * editBuffer()
Buffer with uncommitted editing operations. Only valid after editing has been turned on.
void attributeValueChanged(QgsFeatureId fid, int idx, const QVariant &value)
Emitted whenever an attribute value change is done in the edit buffer.
void selectionChanged(const QgsFeatureIds &selected, const QgsFeatureIds &deselected, bool clearAndSelect)
Emitted when selection was changed.
void featureAdded(QgsFeatureId fid)
Emitted when a new feature has been added to the layer.
void geometryChanged(QgsFeatureId fid, const QgsGeometry &geometry)
Emitted whenever a geometry change is done in the edit buffer.
bool qgsVariantLessThan(const QVariant &lhs, const QVariant &rhs)
Compares two QVariant values and returns whether the first is less than the second.
QSet< QgsFeatureId > QgsFeatureIds
qint64 QgsFeatureId
64 bit feature ids negative numbers are used for uncommitted/newly added features
#define QgsDebugMsgLevel(str, level)
#define QgsDebugError(str)
Defines the configuration of a column in the attribute table.