NAME

       SoWWWAnchor -

       The SoWWWAnchor class adds URL callbacks to the highlighted geometry.

       In addition to highlighting geometry under the cursor, the application programmer can set
       callbacks. It is possible to set one callback for picking, the fetch callback, and one
       callback for highlighting.

SYNOPSIS

       #include <Inventor/nodes/SoWWWAnchor.h>

       Inherits SoLocateHighlight.

   Public Types
       enum Mapping { NONE, POINT }

   Public Member Functions
       virtual SoType getTypeId (void) const
           Returns the type identification of an object derived from a class inheriting SoBase.
           This is used for run-time type checking and 'downward' casting.
       SoWWWAnchor (void)
       void setFullURLName (const SbString &url)
       const SbString & getFullURLName (void)
       virtual void handleEvent (SoHandleEventAction *action)

   Static Public Member Functions
       static SoType getClassTypeId (void)
       static void initClass (void)
       static void setFetchURLCallBack (SoWWWAnchorCB *f, void *userData)
       static void setHighlightURLCallBack (SoWWWAnchorCB *f, void *userData)

   Public Attributes
       SoSFString name
       SoSFString description
       SoSFEnum map

   Protected Member Functions
       virtual const SoFieldData * getFieldData (void) const
       virtual ~SoWWWAnchor ()
       virtual void redrawHighlighted (SoAction *act, SbBool isNowHighlighting)

   Static Protected Member Functions
       static const SoFieldData ** getFieldDataPtr (void)

   Additional Inherited Members

Detailed Description

       The SoWWWAnchor class adds URL callbacks to the highlighted geometry.

       In addition to highlighting geometry under the cursor, the application programmer can set
       callbacks. It is possible to set one callback for picking, the fetch callback, and one
       callback for highlighting.

       #Inventor V2.1 ascii

       WWWAnchor {
          name "http://www.coin3d.org/Coin/egg.iv"
          description "Easter Egg"

          Separator {
             Transform { scaleFactor 0.8 1.2 0.8 }
             Sphere { }
          }
       }

       FILE FORMAT/DEFAULTS:

       WWWAnchor {
           renderCaching AUTO
           boundingBoxCaching AUTO
           renderCulling AUTO
           pickCulling AUTO
           color 0.3 0.3 0.3
           style EMISSIVE
           mode AUTO
           name "<Undefined URL>"
           description ""
           map NONE
       }

       Since:
           Inventor 2.1

Member Enumeration Documentation

   enum SoWWWAnchor::Mapping
       Enum that says how a picked node's position should be mapped to the URL.

       Enumerator

       NONE   The position of the picked node is not mapped to the URL.

       POINT  The position of the picked node is mapped to the URL as object space coordinates,
              adding a parameter string to the end of the URL. To assure that the URL works with
              all browsers, the coordinates are divided by commas sent as the hex representation.

       If a model by the name of sim.wrl resided at www.coin3d.org and the picked point had the
       coordinates [1.5, 10, 6.77], the resulting URL would be
       'http://www.coin3d.org/sim.wrl?1.5%2c10%2c6.77'.

Constructor & Destructor Documentation

   SoWWWAnchor::SoWWWAnchor (void)
       Constructor.

   SoWWWAnchor::~SoWWWAnchor () [protected],  [virtual]
       Destructor.

Member Function Documentation

   SoType SoWWWAnchor::getTypeId (void) const [virtual]
       Returns the type identification of an object derived from a class inheriting SoBase. This
       is used for run-time type checking and 'downward' casting. Usage example:

       void foo(SoNode * node)
       {
         if (node->getTypeId() == SoFile::getClassTypeId()) {
           SoFile * filenode = (SoFile *)node;  // safe downward cast, knows the type
         }
       }

       For application programmers wanting to extend the library with new nodes, engines,
       nodekits, draggers or others: this method needs to be overridden in all subclasses. This
       is typically done as part of setting up the full type system for extension classes, which
       is usually accomplished by using the pre-defined macros available through for instance
       Inventor/nodes/SoSubNode.h (SO_NODE_INIT_CLASS and SO_NODE_CONSTRUCTOR for node classes),
       Inventor/engines/SoSubEngine.h (for engine classes) and so on.

       For more information on writing Coin extensions, see the class documentation of the
       toplevel superclasses for the various class groups.

       Reimplemented from SoLocateHighlight.

   const SoFieldData * SoWWWAnchor::getFieldData (void) const [protected],  [virtual]
       Returns a pointer to the class-wide field data storage object for this instance. If no
       fields are present, returns NULL.

       Reimplemented from SoLocateHighlight.

   void SoWWWAnchor::setFullURLName (const SbString &url)
       Sets the full URL to url. If this is set, this URL will be used in callbacks instead of
       the URL set in SoWWWAnchor::name.

       See Also:
           SoWWWAnchor::getFullURLName()

   const SbString & SoWWWAnchor::getFullURLName (void)
       Returns the full URL if it's set by SoWWWAnchor::setFullURLName(). Otherwise the contents
       of SoWWWAnchor::name is returned.

       See Also:
           SoWWWAnchor::setFullURLName()

   void SoWWWAnchor::handleEvent (SoHandleEventAction *action) [virtual]
       Action method for SoHandleEventAction.

       Inspects the event data from action, and processes it if it is something which this node
       should react to.

       Nodes influencing relevant state variables for how event handling is done also overrides
       this method.

       Reimplemented from SoLocateHighlight.

   void SoWWWAnchor::setFetchURLCallBack (SoWWWAnchorCB *f, void *userData) [static]
       Sets the callback function f that is called when a SoWWWAnchor node is clicked on. This
       callback can among other things be used to provide a browser with the URL of this node.

       The callback will be called with the URL, userData and a pointer to this node as
       arguments.

   void SoWWWAnchor::setHighlightURLCallBack (SoWWWAnchorCB *f, void *userData) [static]
       Sets the callback function f that is called when a SoWWWAnchor node is highlighted. This
       callback can among other things be used to provide the user with a visual clue on which
       URL the node points to, for example by showing the URL as a string.

       The callback will be called with the URL, userData and a pointer to this node as
       arguments.

   void SoWWWAnchor::redrawHighlighted (SoAction *act, SbBoolisNowHighlighting) [protected],
       [virtual]
       Calls the highlight callback set up with SoWWWAnchor::setHighlightURLCallBack().

       Reimplemented from SoLocateHighlight.

Member Data Documentation

   SoSFString SoWWWAnchor::name
       The name of the URL which the anchor points to.

   SoSFString SoWWWAnchor::description
       The description of the URL.

   SoSFEnum SoWWWAnchor::map
       Enum describing how a node's position should be mapped to the URL.

Author

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