llhudicon.h

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#ifndef LL_LLHUDICON_H
#define LL_LLHUDICON_H

#include "llmemory.h"
#include "lldarrayptr.h"

#include "llhudobject.h"
#include "v4color.h"
#include "v4coloru.h"
#include "v2math.h"
#include "llrect.h"
#include "llframetimer.h"
#include "llfontgl.h"
#include <set>
#include <vector>
#include "lldarray.h"

// Renders a 2D icon billboard floating at the location specified.
class LLDrawable;
class LLViewerObject;

class LLHUDIcon : public LLHUDObject
{
friend class LLHUDObject;

public:
        /*virtual*/ void render();
        /*virtual*/ void renderForSelect();
        /*virtual*/ void markDead();
        /*virtual*/ F32 getDistance() const { return mDistance; }

        void setImage(LLViewerImage* imagep);
        void setScale(F32 fraction_of_fov);

        void restartLifeTimer() { mLifeTimer.reset(); }

        static S32 generatePickIDs(S32 start_id, S32 step_size);
        static LLHUDIcon* handlePick(S32 pick_id);

        static void updateAll();
        static void cleanupDeadIcons();
        static S32 getNumInstances();

        static BOOL iconsNearby();

        BOOL getHidden() const { return mHidden; }
        void setHidden( BOOL hide ) { mHidden = hide; }

protected:
        LLHUDIcon(const U8 type);
        ~LLHUDIcon();

        void renderIcon(BOOL for_select); // common render code

private:
        LLPointer<LLViewerImage> mImagep;
        LLFrameTimer    mAnimTimer;
        LLFrameTimer    mLifeTimer;
        F32                             mDistance;
        S32                             mPickID;
        F32                             mScale;
        BOOL                    mHidden;

        typedef std::vector<LLPointer<LLHUDIcon> > icon_instance_t;
        static icon_instance_t sIconInstances;
};

#endif // LL_LLHUDICON_H

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