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Extras/FCollada/FCDocument/FCDTargetedEntity.h

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+/*
+	Copyright (C) 2005-2006 Feeling Software Inc.
+	MIT License: http://www.opensource.org/licenses/mit-license.php
+*/
+/*
+	Based on the FS Import classes:
+	Copyright (C) 2005-2006 Feeling Software Inc
+	Copyright (C) 2005-2006 Autodesk Media Entertainment
+	MIT License: http://www.opensource.org/licenses/mit-license.php
+*/
+
+/**
+	@file FCDTargetedEntity.h
+	This file contains the FCDTargetedEntity class.
+*/
+
+#ifndef _FCD_TARGETED_ENTITY_H_
+#define _FCD_TARGETED_ENTITY_H_
+
+#include "FCDocument/FCDEntity.h"
+
+class FCDSceneNode;
+
+/**
+	A targeted entity.
+
+	COLLADA doesn't have targeted entity.
+	Therefore: the behavior of a targeted entity is application-defined.
+	
+	This class is used to support 3dsMax's targeted cameras and lights
+	and we also plan to support Maya's targeted cameras and lights.
+
+	@see FCDCamera FCDLight
+	@ingroup FCDEntity
+*/
+class FCOLLADA_EXPORT FCDTargetedEntity : public FCDEntity
+{
+private:
+	// Target
+	string targetId; // only valid during the import
+	FCDSceneNode* targetNode;
+
+public:
+	/** Constructor: do not use directly.
+		Instead, create objects of the up-classes.
+		@param document The COLLADA document that owns the targeted entity.
+		@param baseId The prefix COLLADA id to be used if no COLLADA id is provided. */
+	FCDTargetedEntity(FCDocument* document, const char* baseId);
+
+	/** Destructor: do not use directly.
+		Instead, release objects through their libraries or their parent entities. */
+	virtual ~FCDTargetedEntity();
+
+	/** Retrieves whether a target is defined for this entity.
+		@return Whether a target is defined for this entity. */
+	inline bool HasTarget() const { return targetNode != NULL; }
+
+	/** Retrieves the target visual scene node for this entity.
+		@return The target visual scene node. */
+	inline FCDSceneNode* GetTargetNode() { return targetNode; }
+	inline const FCDSceneNode* GetTargetNode() const { return targetNode; } /**< See above. */
+
+	/** Sets the target visual scene node for this entity.
+		@param target The new target node. */
+	void SetTargetNode(FCDSceneNode* target);
+
+	/** [INTERNAL] Links the entity with its target.
+		This function is used during the import of a COLLADA document.
+		@todo Modify this function to support multiple visual scenes.
+		@param sceneRoot The root visual scene.
+		@return The status of the linkage. */
+	FUStatus LinkTarget(FCDSceneNode* sceneRoot);
+
+protected:
+	/** [INTERNAL] Retrieves the COLLADA id of the target entity.
+		The actual resolution of the COLLADA id into a visual scene node happens
+		during the LinkTarget function. 
+		@return The COLLADA id of the target entity. */
+	inline const string& GetTargetId() { return targetId; }
+
+	/** [INTERNAL] Sets the COLLADA id of the target entity.
+		This function is used during the import of a COLLADA document.
+		The actual resolution of the COLLADA id into a visual scene node happens
+		during the LinkTarget function. 
+		@param _targetId A COLLADA id. */
+	inline void SetTargetId(const string& _targetId) { targetId = _targetId; }
+	inline void SetTargetId(const char* _targetId) { targetId = _targetId; } /**< See above. */
+};
+
+#endif // _FCD_TARGETED_ENTITY_H_
+