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class QgsMapToolIdentify : QgsMapTool
{
%TypeHeaderCode
#include <qgsmaptoolidentify.h>
%End
public:
enum IdentifyMode
{
DefaultQgsSetting,
ActiveLayer,
TopDownStopAtFirst,
TopDownAll,
LayerSelection
};
enum LayerType
{
AllLayers,
VectorLayer,
RasterLayer
};
struct IdentifyResult
{
IdentifyResult();
IdentifyResult( QgsMapLayer * layer, QgsFeature feature, QMap< QString, QString > derivedAttributes );
IdentifyResult( QgsMapLayer * layer, QString label, QMap< QString, QString > attributes, QMap< QString, QString > derivedAttributes );
IdentifyResult( QgsMapLayer * layer, QString label, QgsFields fields, QgsFeature feature, QMap< QString, QString > derivedAttributes );
QgsMapLayer* mLayer;
QString mLabel;
QgsFields mFields;
QgsFeature mFeature;
QMap< QString, QString > mAttributes;
QMap< QString, QString > mDerivedAttributes;
QMap< QString, QVariant > mParams;
};
//! constructor
QgsMapToolIdentify( QgsMapCanvas * canvas );
virtual ~QgsMapToolIdentify();
//! Overridden mouse move event
virtual void canvasMoveEvent( QMouseEvent * e );
//! Overridden mouse press event
virtual void canvasPressEvent( QMouseEvent * e );
//! Overridden mouse release event
virtual void canvasReleaseEvent( QMouseEvent * e );
virtual void activate();
virtual void deactivate();
/** Performs the identification.
@param x x coordinates of mouseEvent
@param y y coordinates of mouseEvent
@param layerList Performs the identification within the given list of layers. Default value is an empty list, i.e. uses all the layers.
@param mode Identification mode. Can use Qgis default settings or a defined mode. Default mode is DefaultQgsSetting.
@return a list of IdentifyResult*/
QList<QgsMapToolIdentify::IdentifyResult> identify( int x, int y, QList<QgsMapLayer*> layerList = QList<QgsMapLayer*>(), IdentifyMode mode = DefaultQgsSetting );
/** Performs the identification.
To avoid beeing forced to specify IdentifyMode with a list of layers
this has been made private and two publics methods are offered
@param x x coordinates of mouseEvent
@param y y coordinates of mouseEvent
@param mode Identification mode. Can use Qgis default settings or a defined mode.
@param layerType Only performs identification in a certain type of layers (raster, vector). Default value is AllLayers.
@return a list of IdentifyResult*/
QList<QgsMapToolIdentify::IdentifyResult> identify( int x, int y, IdentifyMode mode, LayerType layerType = AllLayers );
protected:
//! rubber bands for layer select mode
void deleteRubberBands();
public slots:
void formatChanged( QgsRasterLayer *layer );
void layerDestroyed();
signals:
void identifyProgress( int, int );
void identifyMessage( QString );
void changedRasterResults( QList<QgsMapToolIdentify::IdentifyResult>& );
};
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