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/**
* @file lltoolgrab.h
* @brief LLToolGrab class header file
*
* $LicenseInfo:firstyear=2001&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#ifndef LL_TOOLGRAB_H
#define LL_TOOLGRAB_H
#include "lltool.h"
#include "v3math.h"
#include "llquaternion.h"
#include "llsingleton.h"
#include "lluuid.h"
#include "llviewerwindow.h" // for LLPickInfo
class LLView;
class LLTextBox;
class LLViewerObject;
class LLPickInfo;
// Message utilities
void send_ObjectGrab_message(LLViewerObject* object, const LLPickInfo & pick, const LLVector3 &grab_offset);
void send_ObjectDeGrab_message(LLViewerObject* object, const LLPickInfo & pick);
/**
* LLToolGrabBase contains most of the semantics of LLToolGrab. It's just that
* LLToolGrab is an LLSingleton, but we also explicitly instantiate
* LLToolGrabBase as part of LLToolCompGun. You can't just make an extra
* instance of an LLSingleton!
*/
class LLToolGrabBase : public LLTool
{
public:
LLToolGrabBase(LLToolComposite* composite=NULL);
~LLToolGrabBase();
/*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(const LLPickInfo& info);
// Certain grabs should not highlight the "Build" toolbar button
BOOL getHideBuildHighlight() { return mHideBuildHighlight; }
void setClickedInMouselook(BOOL is_clickedInMouselook) {mClickedInMouselook = is_clickedInMouselook;}
static void pickCallback(const LLPickInfo& pick_info);
private:
LLVector3d getGrabPointGlobal();
void startGrab();
void stopGrab();
void startSpin();
void stopSpin();
void handleHoverSpin(S32 x, S32 y, MASK mask);
void handleHoverActive(S32 x, S32 y, MASK mask);
void handleHoverNonPhysical(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;
LLTimer mGrabTimer; // send simulator time between hover movements
LLVector3 mGrabOffsetFromCenterInitial; // meters from CG of object
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
LLPickInfo mGrabPick;
S32 mLastMouseX;
S32 mLastMouseY;
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 mValidSelection;
S32 mLastFace;
LLVector2 mLastUVCoords;
LLVector2 mLastSTCoords;
LLVector3 mLastIntersection;
LLVector3 mLastNormal;
LLVector3 mLastBinormal;
LLVector3 mLastGrabPos;
BOOL mSpinGrabbing;
LLQuaternion mSpinRotation;
BOOL mHideBuildHighlight;
BOOL mClickedInMouselook;
};
/// This is the LLSingleton instance of LLToolGrab.
class LLToolGrab : public LLToolGrabBase, public LLSingleton<LLToolGrab>
{
LLSINGLETON_EMPTY_CTOR(LLToolGrab);
};
extern BOOL gGrabBtnVertical;
extern BOOL gGrabBtnSpin;
extern LLTool* gGrabTransientTool;
#endif // LL_TOOLGRAB_H
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