QGIS/python/core/composer/qgscomposerattributetablev2.sip

/**Helper class for sorting tables, takes into account sorting column and ascending / descending*/
class QgsComposerAttributeTableCompareV2
{
%TypeHeaderCode
#include <qgscomposerattributetablev2.h>
%End

  public:

    QgsComposerAttributeTableCompareV2();
    
    bool operator()( const QgsComposerTableRow& m1, const QgsComposerTableRow& m2 );

    /**Sets column number to sort by
     * @param col column number for sorting
     */
    void setSortColumn( int col );

    /**Sets sort order for column sorting
     * @param asc set to true to sort in ascending order, false to sort in descending order
     */
    void setAscending( bool asc );

};

/**A table that displays attributes from a vector layer*/
class QgsComposerAttributeTableV2 : QgsComposerTableV2
{
%TypeHeaderCode
#include <qgscomposerattributetablev2.h>
%End

  public:

    QgsComposerAttributeTableV2( QgsComposition* composition, bool createUndoCommands );
    ~QgsComposerAttributeTableV2();

    /**Writes properties specific to attribute tables
     * @param elem an existing QDomElement in which to store the attribute table's properties.
     * @param doc QDomDocument for the destination xml.
     * @see readXML
     */
    virtual bool writeXML( QDomElement& elem, QDomDocument & doc, bool ignoreFrames = false ) const;

    /**Reads the properties specific to an attribute table from xml.
     * @param itemElem a QDomElement holding the attribute table's desired properties.
     * @param doc QDomDocument for the source xml.
     * @see writeXML
     */
    virtual bool readXML( const QDomElement& itemElem, const QDomDocument& doc, bool ignoreFrames = false );

    virtual void addFrame( QgsComposerFrame* frame, bool recalcFrameSizes = true );

    /**Sets the vector layer from which to display feature attributes
     * @param layer Vector layer for attribute table
     * @see vectorLayer
     */
    void setVectorLayer( QgsVectorLayer* layer );

    /**Returns the vector layer the attribute table is currently using
     * @returns attribute table's current vector layer
     * @see setVectorLayer
     */
    QgsVectorLayer* vectorLayer() const;

    /**Resets the attribute table's columns to match the vector layer's fields
     * @see setVectorLayer
     */
    void resetColumns();

    /**Sets the composer map to use to limit the extent of features shown in the
     * attribute table. This setting only has an effect if setDisplayOnlyVisibleFeatures is
     * set to true. Changing the composer map forces the table to refetch features from its
     * vector layer, and may result in the table changing size to accommodate the new displayed
     * feature attributes.
     * @param map QgsComposerMap which drives the extents of the table's features
     * @see composerMap
     * @see setDisplayOnlyVisibleFeatures
     */
    void setComposerMap( const QgsComposerMap* map );

    /**Returns the composer map whose extents are controlling the features shown in the
     * table. The extents of the map are only used if displayOnlyVisibleFeatures() is true.
     * @returns composer map controlling the attribute table
     * @see setComposerMap
     * @see displayOnlyVisibleFeatures
     */
    const QgsComposerMap* composerMap() const;
    
    /**Sets the maximum number of features shown by the table. Changing this setting may result
     * in the attribute table changing its size to accommodate the new number of rows, and requires
     * the table to refetch features from its vector layer.
     * @param features maximum number of features to show in the table
     * @see maximumNumberOfFeatures
     */
    void setMaximumNumberOfFeatures( int features );

    /**Returns the maximum number of features to be shown by the table.
     * @returns maximum number of features
     * @see setMaximumNumberOfFeatures
     */
    int maximumNumberOfFeatures() const;

    /**Sets attribute table to only show features which are visible in a composer map item. Changing
     * this setting forces the table to refetch features from its vector layer, and may result in
     * the table changing size to accommodate the new displayed feature attributes.
     * @param visibleOnly set to true to show only visible features
     * @see displayOnlyVisibleFeatures
     * @see setComposerMap
     */
    void setDisplayOnlyVisibleFeatures( bool visibleOnly );

    /**Returns true if the table is set to show only features visible on a corresponding
     * composer map item.
     * @returns true if table only shows visible features
     * @see composerMap
     * @see setDisplayOnlyVisibleFeatures
     */
    bool displayOnlyVisibleFeatures() const;

    /**Returns true if a feature filter is active on the attribute table
     * @returns bool state of the feature filter
     * @see setFilterFeatures
     * @see featureFilter
     */
    bool filterFeatures() const;

    /**Sets whether the feature filter is active for the attribute table. Changing
     * this setting forces the table to refetch features from its vector layer, and may result in
     * the table changing size to accommodate the new displayed feature attributes.
     * @param filter Set to true to enable the feature filter
     * @see filterFeatures
     * @see setFeatureFilter
     */
    void setFilterFeatures( bool filter );

    /**Returns the current expression used to filter features for the table. The filter is only
     * active if filterFeatures() is true.
     * @returns feature filter expression
     * @see setFeatureFilter
     * @see filterFeatures
     */
    QString featureFilter() const;

    /**Sets the expression used for filtering features in the table. The filter is only
     * active if filterFeatures() is set to true. Changing this setting forces the table
     * to refetch features from its vector layer, and may result in
     * the table changing size to accommodate the new displayed feature attributes.
     * @param expression filter to use for selecting which features to display in the table
     * @see featureFilter
     * @see setFilterFeatures
     */
    void setFeatureFilter( const QString& expression );

    /**Sets the attributes to display in the table.
     * @param attr QSet of integer values refering to the attributes from the vector layer to show.
     * Set to an empty QSet to show all feature attributes.
     * @param refresh set to true to force the table to refetch features from its vector layer
     * and immediately update the display of the table. This may result in the table changing size
     * to accommodate the new displayed feature attributes.
     * @see displayAttributes
     */
    void setDisplayAttributes( const QSet<int>& attr, bool refresh = true );

    /**Returns the attributes used to sort the table's features.
     * @returns a QList of integer/bool pairs, where the integer refers to the attribute index and
     * the bool to the sort order for the attribute. If true the attribute is sorted ascending,
     * if false, the attribute is sorted in descending order.
     * @note not available in python bindings
     */
    //QList<QPair<int, bool> > sortAttributes() const;

    /**Queries the attribute table's vector layer for attributes to show in the table.
     * @param attributeMaps list of QgsAttributeMaps where the fetched feature attributes will be stored
     * @returns true if attributes were successfully fetched
     * @note not available in python bindings
     */
    bool getTableContents( QgsComposerTableContents &contents );

};