lltoolgrab.h

Go to the documentation of this file.

#ifndef LL_TOOLGRAB_H
#define LL_TOOLGRAB_H

#include "lltool.h"
#include "v3math.h"
#include "llquaternion.h"
#include "llmemory.h"
#include "lluuid.h"

class LLView;
class LLTextBox;
class LLViewerObject;

class LLToolGrab : public LLTool
{
public:
        LLToolGrab( LLToolComposite* composite = NULL );
        ~LLToolGrab();

        /*virtual*/ BOOL        handleHover(S32 x, S32 y, MASK mask);
        /*virtual*/ BOOL        handleMouseDown(S32 x, S32 y, MASK mask);
        /*virtual*/ BOOL        handleMouseUp(S32 x, S32 y, MASK mask);
        /*virtual*/ BOOL        handleDoubleClick(S32 x, S32 y, MASK mask);
        /*virtual*/ void        render();               // 3D elements
        /*virtual*/ void        draw();                 // 2D elements

        virtual void            handleSelect();
        virtual void            handleDeselect();
        
        virtual LLViewerObject* getEditingObject();
        virtual LLVector3d              getEditingPointGlobal();
        virtual BOOL                    isEditing();
        virtual void                    stopEditing();
        
        virtual void                    onMouseCaptureLost();

        BOOL                    hasGrabOffset()  { return TRUE; }       // HACK
        LLVector3               getGrabOffset(S32 x, S32 y);            // HACK

        // Capture the mouse and start grabbing.
        BOOL                    handleObjectHit(LLViewerObject *objectp, S32 x, S32 y, MASK mask);

        // Certain grabs should not highlight the "Build" toolbar button
        BOOL getHideBuildHighlight() { return mHideBuildHighlight; }

        static void             pickCallback(S32 x, S32 y, MASK mask);
private:
        LLVector3d              getGrabPointGlobal();
        void                    startGrab(S32 x, S32 y);
        void                    stopGrab();

        void                    startSpin();
        void                    stopSpin();

        void                    handleHoverSpin(S32 x, S32 y, MASK mask);
        void                    handleHoverActive(S32 x, S32 y, MASK mask);
        void                    handleHoverInactive(S32 x, S32 y, MASK mask);
        void                    handleHoverFailed(S32 x, S32 y, MASK mask);

private:
        enum                    EGrabMode { GRAB_INACTIVE, GRAB_ACTIVE_CENTER, GRAB_NONPHYSICAL, GRAB_LOCKED, GRAB_NOOBJECT };

        EGrabMode               mMode;

        BOOL                    mVerticalDragging;

        BOOL                    mHitLand;
        LLUUID                  mHitObjectID;                           // if hit something, its ID

        LLPointer<LLViewerObject>       mGrabObject;                                    // the object currently being grabbed
        LLTimer                 mGrabTimer;                                             // send simulator time between hover movements

        LLVector3               mGrabOffsetFromCenterInitial;   // meters from CG of object
        LLVector3               mGrabOffset;                                    // how far cursor currently is from grab start point, meters
        LLVector3d              mGrabHiddenOffsetFromCamera;    // in cursor hidden drag, how far is grab offset from camera

        LLVector3d              mDragStartPointGlobal;                          // projected into world
        LLVector3d              mDragStartFromCamera;                   // drag start relative to camera

        S32                             mLastMouseX;
        S32                             mLastMouseY;
        S32                             mMouseDownX;
        S32                             mMouseDownY;
        MASK                    mMouseMask;
        S32                             mAccumDeltaX;   // since cursor hidden, how far have you moved?
        S32                             mAccumDeltaY;
        BOOL                    mHasMoved;              // has mouse moved off center at all?
        BOOL                    mOutsideSlop;   // has mouse moved outside center 5 pixels?
        BOOL                    mDeselectedThisClick;

        BOOL                    mSpinGrabbing;
        LLQuaternion    mSpinRotation;

        BOOL                    mHideBuildHighlight;
};

extern LLToolGrab *gToolGrab;

extern BOOL gGrabBtnVertical;
extern BOOL gGrabBtnSpin;
extern LLTool* gGrabTransientTool;

#endif  // LL_TOOLGRAB_H

---