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/**
* @file llmaniprotate.h
* @brief LLManipRotate class definition
*
* $LicenseInfo:firstyear=2002&license=viewerlgpl$
* 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_LLMANIPROTATE_H
#define LL_LLMANIPROTATE_H
#include "lltool.h"
#include "v3math.h"
#include "v4math.h"
#include "llquaternion.h"
#include "llregionposition.h"
#include "llmanip.h"
#include "llviewerobject.h"
class LLToolComposite;
class LLColor4;
class LLManipRotate : public LLManip
{
public:
class ManipulatorHandle
{
public:
LLVector3 mAxisU;
LLVector3 mAxisV;
U32 mManipID;
ManipulatorHandle(LLVector3 axis_u, LLVector3 axis_v, U32 id) : mAxisU(axis_u), mAxisV(axis_v), mManipID(id){}
};
LLManipRotate( LLToolComposite* composite );
virtual BOOL handleMouseDown( S32 x, S32 y, MASK mask );
virtual BOOL handleMouseUp( S32 x, S32 y, MASK mask );
virtual BOOL handleHover( S32 x, S32 y, MASK mask );
virtual void render();
virtual void handleSelect();
virtual BOOL handleMouseDownOnPart(S32 x, S32 y, MASK mask);
virtual void highlightManipulators(S32 x, S32 y);
virtual BOOL canAffectSelection();
private:
void updateHoverView();
void drag( S32 x, S32 y );
LLVector3 projectToSphere( F32 x, F32 y, BOOL* on_sphere );
void renderSnapGuides();
void renderActiveRing(F32 radius, F32 width, const LLColor4& center_color, const LLColor4& side_color);
BOOL updateVisiblity();
LLVector3 findNearestPointOnRing( S32 x, S32 y, const LLVector3& center, const LLVector3& axis );
LLQuaternion dragUnconstrained( S32 x, S32 y );
LLQuaternion dragConstrained( S32 x, S32 y );
LLVector3 getConstraintAxis();
S32 getObjectAxisClosestToMouse(LLVector3& axis);
// Utility functions
static void mouseToRay( S32 x, S32 y, LLVector3* ray_pt, LLVector3* ray_dir );
static LLVector3 intersectMouseWithSphere( S32 x, S32 y, const LLVector3& sphere_center, F32 sphere_radius );
static LLVector3 intersectRayWithSphere( const LLVector3& ray_pt, const LLVector3& ray_dir, const LLVector3& sphere_center, F32 sphere_radius);
private:
LLVector3d mRotationCenter;
LLCoordGL mCenterScreen;
// S32 mLastHoverMouseX; // used to suppress hover if mouse doesn't move
// S32 mLastHoverMouseY;
LLQuaternion mRotation;
LLVector3 mMouseDown;
LLVector3 mMouseCur;
F32 mRadiusMeters;
LLVector3 mCenterToCam;
LLVector3 mCenterToCamNorm;
F32 mCenterToCamMag;
LLVector3 mCenterToProfilePlane;
F32 mCenterToProfilePlaneMag;
BOOL mSendUpdateOnMouseUp;
BOOL mSmoothRotate;
BOOL mCamEdgeOn;
LLVector4 mManipulatorVertices[6];
LLVector4 mManipulatorScales;
};
#endif // LL_LLMANIPROTATE_H
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