llviewerparcelmgr.h

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#ifndef LL_LLVIEWERPARCELMGR_H
#define LL_LLVIEWERPARCELMGR_H

#include "v3dmath.h"
#include "lldarray.h"
#include "llframetimer.h"
#include "llmemory.h"
#include "llparcelselection.h"
#include "llui.h"

class LLUUID;
class LLMessageSystem;
class LLParcel;
class LLViewerImage;
class LLViewerRegion;

// Constants for sendLandOwner
//const U32 NO_NEIGHBOR_JOIN = 0x0;
//const U32 ALL_NEIGHBOR_JOIN = U32(  NORTH_MASK 
//                                                        | SOUTH_MASK 
//                                                        | EAST_MASK 
//                                                        | WEST_MASK);

const F32 PARCEL_POST_HEIGHT = 0.666f;
//const F32 PARCEL_POST_HEIGHT = 20.f;

// Specify the type of land transfer taking place
//enum ELandTransferType
//{
//      LTT_RELEASE_LAND = 0x1,
//      LTT_CLAIM_LAND = 0x2,
//      LTT_BUY_LAND = 0x4,
//      LTT_DEED_LAND = 0x8,
//      LTT_FOR_GROUP = 0x16
//};

// Base class for people who want to "observe" changes in the viewer
// parcel selection.
class LLParcelObserver
{
public:
        virtual ~LLParcelObserver() {};
        virtual void changed() = 0;
};

class LLViewerParcelMgr : public LLSingleton<LLViewerParcelMgr>
{

public:
        LLViewerParcelMgr();
        ~LLViewerParcelMgr();

        static void cleanupGlobals();

        BOOL    selectionEmpty() const;
        F32             getSelectionWidth() const       { return F32(mEastNorth.mdV[VX] - mWestSouth.mdV[VX]); }
        F32             getSelectionHeight() const      { return F32(mEastNorth.mdV[VY] - mWestSouth.mdV[VY]); }
        BOOL    getSelection(LLVector3d &min, LLVector3d &max) { min = mWestSouth; max = mEastNorth; return !selectionEmpty();}
        LLViewerRegion* getSelectionRegion();
        F32             getDwelling() const { return mSelectedDwell;}

        void    getDisplayInfo(S32* area, S32* claim, S32* rent, BOOL* for_sale, F32* dwell);

        // Returns selected area
        S32 getSelectedArea() const;

        void resetSegments(U8* segments);

        // write a rectangle's worth of line segments into the highlight array
        void writeHighlightSegments(F32 west, F32 south, F32 east, F32 north);

        // Write highlight segments from a packed bitmap of the appropriate
        // parcel.
        void writeSegmentsFromBitmap(U8* bitmap, U8* segments);

        void writeAgentParcelFromBitmap(U8* bitmap);

        // Select the collision parcel
        void selectCollisionParcel();

        // Select the parcel at a specific point
        LLSafeHandle<LLParcelSelection> selectParcelAt(const LLVector3d& pos_global);

        // Take the current rectangle select, and select the parcel contained
        // within it.
        LLParcelSelectionHandle selectParcelInRectangle();

        // Select a piece of land
        LLParcelSelectionHandle selectLand(const LLVector3d &corner1, const LLVector3d &corner2, 
                                           BOOL snap_to_parcel);

        // Clear the selection, and stop drawing the highlight.
        void    deselectLand();
        void    deselectUnused();

        void addObserver(LLParcelObserver* observer);
        void removeObserver(LLParcelObserver* observer);
        void notifyObservers();

        void setSelectionVisible(BOOL visible) { mRenderSelection = visible; }

        BOOL    isOwnedAt(const LLVector3d& pos_global) const;
        BOOL    isOwnedSelfAt(const LLVector3d& pos_global) const;
        BOOL    isOwnedOtherAt(const LLVector3d& pos_global) const;
        BOOL    isSoundLocal(const LLVector3d &pos_global) const;

        BOOL    canHearSound(const LLVector3d &pos_global) const;

        // Returns a reference counted pointer to current parcel selection.  
        // Selection does not change to reflect new selections made by user
        // Use this when implementing a task UI that refers to a specific
        // selection.
        LLParcelSelectionHandle getParcelSelection() const;

        // Returns a reference counted pointer to current parcel selection.
        // Pointer tracks whatever the user has currently selected.
        // Use this when implementing an inspector UI.
        // http://en.wikipedia.org/wiki/Inspector_window
        LLParcelSelectionHandle getFloatingParcelSelection() const;

        //LLParcel *getParcelSelection() const;
        LLParcel *getAgentParcel() const;

        BOOL    inAgentParcel(const LLVector3d &pos_global) const;

        // Returns a pointer only when it has valid data.
        LLParcel*       getHoverParcel() const;

        LLParcel*       getCollisionParcel() const;

        BOOL    agentCanTakeDamage() const;
        BOOL    agentCanFly() const;
        F32             agentDrawDistance() const;
        BOOL    agentCanBuild() const;

        F32             getHoverParcelWidth() const             
                                { return F32(mHoverEastNorth.mdV[VX] - mHoverWestSouth.mdV[VX]); }

        F32             getHoverParcelHeight() const
                                { return F32(mHoverEastNorth.mdV[VY] - mHoverWestSouth.mdV[VY]); }

        // UTILITIES
        void    render();
        void    renderParcelCollision();

        void    renderRect(     const LLVector3d &west_south_bottom, 
                                                const LLVector3d &east_north_top );
        void    renderOneSegment(F32 x1, F32 y1, F32 x2, F32 y2, F32 height, U8 direction, LLViewerRegion* regionp);
        void    renderHighlightSegments(const U8* segments, LLViewerRegion* regionp);
        void    renderCollisionSegments(U8* segments, BOOL use_pass, LLViewerRegion* regionp);

        void    sendParcelGodForceOwner(const LLUUID& owner_id);

        // make the selected parcel a content parcel. 
        void sendParcelGodForceToContent();

        // Pack information about this parcel and send it to the region
        // containing the southwest corner of the selection.
        // If want_reply_to_update, simulator will send back a ParcelProperties
        // message.
        void    sendParcelPropertiesUpdate(LLParcel* parcel, bool use_agent_region = false);

        // Takes an Access List flag, like AL_ACCESS or AL_BAN
        void    sendParcelAccessListUpdate(U32 which);

        // Takes an Access List flag, like AL_ACCESS or AL_BAN
        void    sendParcelAccessListRequest(U32 flags);

        // Dwell is not part of the usual parcel update information because the
        // simulator doesn't actually know the per-parcel dwell.  Ack!  We have
        // to get it out of the database.
        void    sendParcelDwellRequest();

        // If the point is outside the current hover parcel, request more data
        void    requestHoverParcelProperties(const LLVector3d& pos_global);

        bool    canAgentBuyParcel(LLParcel*, bool forGroup) const;
        
//      void    startClaimLand(BOOL is_for_group = FALSE);
        void    startBuyLand(BOOL is_for_group = FALSE);
        void    startSellLand();
        void    startReleaseLand();
        void    startDivideLand();
        void    startJoinLand();
        void    startDeedLandToGroup();
        void reclaimParcel();

        void    buyPass();

        // Buying Land
        
        class ParcelBuyInfo;
        ParcelBuyInfo* setupParcelBuy(const LLUUID& agent_id,
                                                                  const LLUUID& session_id,                                              
                                                                  const LLUUID& group_id,
                                                                  BOOL is_group_owned,
                                                                  BOOL is_claim,
                                                                  BOOL remove_contribution);
                // callers responsibility to call deleteParcelBuy() on return value
        void sendParcelBuy(ParcelBuyInfo*);
        void deleteParcelBuy(ParcelBuyInfo*&);
                                           
        void sendParcelDeed(const LLUUID& group_id);

        // Send the ParcelRelease message
        void sendParcelRelease();

        // accessors for mAgentParcel
        const LLString& getAgentParcelName() const;

        // Create a landmark at the "appropriate" location for the
        // currently selected parcel.
        // *NOTE: Taken out 2005-03-21. Phoenix.
        //void makeLandmarkAtSelection();

        static void processParcelOverlay(LLMessageSystem *msg, void **user_data);
        static void processParcelProperties(LLMessageSystem *msg, void **user_data);
        static void processParcelAccessListReply(LLMessageSystem *msg, void **user);
        static void processParcelDwellReply(LLMessageSystem *msg, void **user);

        void dump();

        // Whether or not the collision border around the parcel is there because
        // the agent is banned or not in the allowed group
        BOOL isCollisionBanned();

        static BOOL isParcelOwnedByAgent(const LLParcel* parcelp, U64 group_proxy_power);
        static BOOL isParcelModifiableByAgent(const LLParcel* parcelp, U64 group_proxy_power);

private:
        static void releaseAlertCB(S32 option, void *data);

        // If the user is claiming land and the current selection 
        // borders a piece of land the user already owns, ask if he
        // wants to join this land to the other piece.
        //void  askJoinIfNecessary(ELandTransferType land_transfer_type);
        //static void joinAlertCB(S32 option, void* data);

        //void buyAskMoney(ELandTransferType land_transfer_type);

        // move land from current owner to it's group.
        void deedLandToGroup();

        static void claimAlertCB(S32 option, void* data);
        static void buyAlertCB(S32 option, void* data);
        static void deedAlertCB(S32 option, void*);

        static void callbackDivideLand(S32 option, void* data);
        static void callbackJoinLand(S32 option, void* data);

        //void  finishClaim(BOOL user_to_user_sale, U32 join);
        LLViewerImage* getBlockedImage() const;
        LLViewerImage* getPassImage() const;

private:
        BOOL                                            mSelected;

        LLParcel*                                       mCurrentParcel;                 // selected parcel info
        LLParcelSelectionHandle         mCurrentParcelSelection;
        LLParcelSelectionHandle         mFloatingParcelSelection;
        S32                                                     mRequestResult;         // result of last parcel request
        LLVector3d                                      mWestSouth;
        LLVector3d                                      mEastNorth;
        F32                                                     mSelectedDwell;

        LLParcel                                        *mAgentParcel;          // info for parcel agent is in
        S32                                                     mAgentParcelSequenceID; // incrementing counter to suppress out of order updates

        LLParcel*                                       mHoverParcel;
        S32                                                     mHoverRequestResult;
        LLVector3d                                      mHoverWestSouth;
        LLVector3d                                      mHoverEastNorth;

        LLDynamicArray<LLParcelObserver*> mObservers;

        // Array of pieces of parcel edges to potentially draw
        // Has (parcels_per_edge + 1) * (parcels_per_edge + 1) elements so
        // we can represent edges of the grid.
        // WEST_MASK = draw west edge
        // SOUTH_MASK = draw south edge
        S32                                                     mParcelsPerEdge;
        U8*                                                     mHighlightSegments;
        U8*                                                     mAgentParcelOverlay;

        // Raw data buffer for unpacking parcel overlay chunks
        // Size = parcels_per_edge * parcels_per_edge / parcel_overlay_chunks
        static U8*                                      sPackedOverlay;

        // Watch for pending collisions with a parcel you can't access.
        // If it's coming, draw the parcel's boundaries.
        LLParcel*                                       mCollisionParcel;
        U8*                                                     mCollisionSegments;
        BOOL                                            mRenderCollision; 
        BOOL                                            mRenderSelection;
        S32                                                     mCollisionBanned;     
        LLFrameTimer                            mCollisionTimer;
        LLImageGL*                                      mBlockedImage;
        LLImageGL*                                      mPassImage;

        // Media
        S32                                             mMediaParcelId;
        U64                                             mMediaRegionId;
};


void sanitize_corners(const LLVector3d &corner1, const LLVector3d &corner2,
                                                LLVector3d &west_south_bottom, LLVector3d &east_north_top);

#endif

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