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#ifndef KML_DOM_KML_CAST_H__
#define KML_DOM_KML_CAST_H__

#include <exception>  // Needed by boost::instrusive_ptr.

#include "kml/base/xml_element.h"
#include "kml/dom/kmldom.h"
#include "kml/dom/kml_ptr.h"

namespace kmldom {

// This function template operates akin to dynamic_cast.  If the given
// Element-derived type is of the template type then a pointer is returned,
// else NULL.  It is safe to pass a NULL to this function.
template<class T>
inline const boost::intrusive_ptr<T> ElementCast(
    const ElementPtr& element) {
  if (element && element->IsA(T::ElementType())) {
    return boost::static_pointer_cast<T>(element);
  }
  return NULL;
}

inline const ElementPtr AsElement(const kmlbase::XmlElementPtr& xml_element) {
  return boost::static_pointer_cast<Element>(xml_element);
}

// Abstract element groups.
const AbstractLatLonBoxPtr AsAbstractLatLonBox(const ElementPtr element);
const AbstractViewPtr AsAbstractView(const ElementPtr element);
const ColorStylePtr AsColorStyle(const ElementPtr element);
const ContainerPtr AsContainer(const ElementPtr element);
const FeaturePtr AsFeature(const ElementPtr element);
const GeometryPtr AsGeometry(const ElementPtr element);
const ObjectPtr AsObject(const ElementPtr element);
const OverlayPtr AsOverlay(const ElementPtr element);
const StyleSelectorPtr AsStyleSelector(const ElementPtr element);
const SubStylePtr AsSubStyle(const ElementPtr element);
const TimePrimitivePtr AsTimePrimitive(const ElementPtr element);

// Concrete elements.
const AliasPtr AsAlias(const ElementPtr element);
const BalloonStylePtr AsBalloonStyle(const ElementPtr element);
const CameraPtr AsCamera(const ElementPtr element);
const ChangePtr AsChange(const ElementPtr element);
inline const CoordinatesPtr AsCoordinates(const ElementPtr& element) {
  return ElementCast<Coordinates>(element);
}
const CreatePtr AsCreate(const ElementPtr element);
const DataPtr AsData(const ElementPtr element);
const DeletePtr AsDelete(const ElementPtr element);
const DocumentPtr AsDocument(const ElementPtr element);
inline const ExtendedDataPtr AsExtendedData(const ElementPtr& element) {
  return ElementCast<ExtendedData>(element);
}
const FolderPtr AsFolder(const ElementPtr element);
const GroundOverlayPtr AsGroundOverlay(const ElementPtr element);
const HotSpotPtr AsHotSpot(const ElementPtr element);
const IconPtr AsIcon(const ElementPtr element);
const IconStylePtr AsIconStyle(const ElementPtr element);
const IconStyleIconPtr AsIconStyleIcon(const ElementPtr element);
const ImagePyramidPtr AsImagePyramid(const ElementPtr element);
const InnerBoundaryIsPtr AsInnerBoundaryIs(const ElementPtr element);
const ItemIconPtr AsItemIcon(const ElementPtr element);
inline const KmlPtr AsKml(const ElementPtr& element) {
  return ElementCast<Kml>(element);
}
const LabelStylePtr AsLabelStyle(const ElementPtr element);
const LatLonAltBoxPtr AsLatLonAltBox(const ElementPtr element);
const LatLonBoxPtr AsLatLonBox(const ElementPtr element);
const LineStringPtr AsLineString(const ElementPtr element);
const LineStylePtr AsLineStyle(const ElementPtr element);
const LinearRingPtr AsLinearRing(const ElementPtr element);
const LinkPtr AsLink(const ElementPtr element);
const LinkSnippetPtr AsLinkSnippet(const ElementPtr element);
const ListStylePtr AsListStyle(const ElementPtr element);
const LocationPtr AsLocation(const ElementPtr element);
const LodPtr AsLod(const ElementPtr element);
const LookAtPtr AsLookAt(const ElementPtr element);
inline const MetadataPtr AsMetadata(const ElementPtr& element) {
  return ElementCast<Metadata>(element);
}
const ModelPtr AsModel(const ElementPtr element);
const MultiGeometryPtr AsMultiGeometry(const ElementPtr element);
const NetworkLinkPtr AsNetworkLink(const ElementPtr element);
inline const NetworkLinkControlPtr AsNetworkLinkControl(
    const ElementPtr& element) {
  return ElementCast<NetworkLinkControl>(element);
}
const OrientationPtr AsOrientation(const ElementPtr element);
const OuterBoundaryIsPtr AsOuterBoundaryIs(const ElementPtr element);
const OverlayXYPtr AsOverlayXY(const ElementPtr element);
const PairPtr AsPair(const ElementPtr element);
const PhotoOverlayPtr AsPhotoOverlay(const ElementPtr element);
const PlacemarkPtr AsPlacemark(const ElementPtr element);
const PointPtr AsPoint(const ElementPtr element);
const PolyStylePtr AsPolyStyle(const ElementPtr element);
const PolygonPtr AsPolygon(const ElementPtr element);
const RegionPtr AsRegion(const ElementPtr element);
const ResourceMapPtr AsResourceMap(const ElementPtr element);
const RotationXYPtr AsRotationXY(const ElementPtr element);
const ScalePtr AsScale(const ElementPtr element);
const SchemaPtr AsSchema(const ElementPtr element);
const SchemaDataPtr AsSchemaData(const ElementPtr element);
const ScreenOverlayPtr AsScreenOverlay(const ElementPtr element);
const ScreenXYPtr AsScreenXY(const ElementPtr element);
inline const SimpleDataPtr AsSimpleData(const ElementPtr& element) {
  return ElementCast<SimpleData>(element);
}
inline const SimpleFieldPtr AsSimpleField(const ElementPtr& element) {
  return ElementCast<SimpleField>(element);
}
const SizePtr AsSize(const ElementPtr element);
const SnippetPtr AsSnippet(const ElementPtr element);
const StylePtr AsStyle(const ElementPtr element);
const StyleMapPtr AsStyleMap(const ElementPtr element);
const TimeSpanPtr AsTimeSpan(const ElementPtr element);
const TimeStampPtr AsTimeStamp(const ElementPtr element);
inline const UpdatePtr AsUpdate(const ElementPtr& element) {
  return ElementCast<Update>(element);
}
const ViewVolumePtr AsViewVolume(const ElementPtr element);

// Atom
inline const AtomAuthorPtr AsAtomAuthor(const ElementPtr& element) {
  return ElementCast<AtomAuthor>(element);
}
inline const AtomCategoryPtr AsAtomCategory(const ElementPtr& element) {
  return ElementCast<AtomCategory>(element);
}
inline const AtomContentPtr AsAtomContent(const ElementPtr& element) {
  return ElementCast<AtomContent>(element);
}
inline const AtomEntryPtr AsAtomEntry(const ElementPtr& element) {
  return ElementCast<AtomEntry>(element);
}
inline const AtomFeedPtr AsAtomFeed(const ElementPtr& element) {
  return ElementCast<AtomFeed>(element);
}
inline const AtomLinkPtr AsAtomLink(const ElementPtr& element) {
  return ElementCast<AtomLink>(element);
}

// xAL
inline const XalAddressDetailsPtr AsXalAddressDetails(
    const ElementPtr& element) {
  return ElementCast<XalAddressDetails>(element);
}
inline const XalAdministrativeAreaPtr AsXalAdministrativeArea(
    const ElementPtr& element) {
  return ElementCast<XalAdministrativeArea>(element);
}

inline const XalCountryPtr AsXalCountry(const ElementPtr& element) {
  return ElementCast<XalCountry>(element);
}

inline const XalLocalityPtr AsXalLocality(const ElementPtr& element) {
  return ElementCast<XalLocality>(element);
}

inline const XalPostalCodePtr AsXalPostalCode(const ElementPtr& element) {
  return ElementCast<XalPostalCode>(element);
}

inline const XalSubAdministrativeAreaPtr AsXalSubAdministrativeArea(
    const ElementPtr& element) {
  return ElementCast<XalSubAdministrativeArea>(element);
}

inline const XalThoroughfarePtr AsXalThoroughfare(const ElementPtr& element) {
  return ElementCast<XalThoroughfare>(element);
}

// gx

inline const GxAnimatedUpdatePtr AsGxAnimatedUpdate(const ElementPtr element) {
  return ElementCast<GxAnimatedUpdate>(element);
}

inline const GxFlyToPtr AsGxFlyTo(const ElementPtr element) {
  return ElementCast<GxFlyTo>(element);
}

inline const GxLatLonQuadPtr AsGxLatLonQuad(const ElementPtr element) {
  return ElementCast<GxLatLonQuad>(element);
}

inline const GxMultiTrackPtr AsGxMultiTrack(const ElementPtr element) {
  return ElementCast<GxMultiTrack>(element);
}

inline const GxPlaylistPtr AsGxPlaylist(const ElementPtr element) {
  return ElementCast<GxPlaylist>(element);
}

inline const GxSimpleArrayFieldPtr AsGxSimpleArrayField(
    const ElementPtr element) {
  return ElementCast<GxSimpleArrayField>(element);
}

inline const GxSimpleArrayDataPtr AsGxSimpleArrayData(
    const ElementPtr element) {
  return ElementCast<GxSimpleArrayData>(element);
}

inline const GxSoundCuePtr AsGxSoundCue(const ElementPtr element) {
  return ElementCast<GxSoundCue>(element);
}

inline const GxTimeSpanPtr AsGxTimeSpan(const ElementPtr element) {
  return ElementCast<GxTimeSpan>(element);
}

inline const GxTimeStampPtr AsGxTimeStamp(const ElementPtr element) {
  return ElementCast<GxTimeStamp>(element);
}

inline const GxTourPtr AsGxTour(const ElementPtr element) {
  return ElementCast<GxTour>(element);
}

inline const GxTourControlPtr AsGxTourControl(const ElementPtr element) {
  return ElementCast<GxTourControl>(element);
}

inline const GxTourPrimitivePtr AsGxTourPrimitive(const ElementPtr element) {
  return ElementCast<GxTourPrimitive>(element);
}

inline const GxTrackPtr AsGxTrack(const ElementPtr element) {
  return ElementCast<GxTrack>(element);
}

inline const GxWaitPtr AsGxWait(const ElementPtr element) {
  return ElementCast<GxWait>(element);
}

}  // end namespace kmldom

#endif  // KML_DOM_KML_CAST_H__