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/**
* @file llmanipscale.h
* @brief LLManipScale class definition
*
* $LicenseInfo:firstyear=2001&license=viewerlgpl$
* 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_MANIPSCALE_H
#define LL_MANIPSCALE_H
// llmanipscale.h
//
// copyright 2001-2002, linden research inc
#include "lltool.h"
#include "v3math.h"
#include "v4math.h"
#include "llmanip.h"
#include "llviewerobject.h"
#include "llbbox.h"
F32 get_default_max_prim_scale(bool is_flora = false);
class LLToolComposite;
class LLColor4;
typedef enum e_scale_manipulator_type
{
SCALE_MANIP_CORNER,
SCALE_MANIP_FACE
} EScaleManipulatorType;
typedef enum e_snap_regimes
{
SNAP_REGIME_NONE = 0, //!< The cursor is not in either of the snap regimes.
SNAP_REGIME_UPPER = 0x1, //!< The cursor is, non-exclusively, in the first of the snap regimes. Prefer to treat as bitmask.
SNAP_REGIME_LOWER = 0x2 //!< The cursor is, non-exclusively, in the second of the snap regimes. Prefer to treat as bitmask.
} ESnapRegimes;
class LLManipScale : public LLManip
{
public:
class ManipulatorHandle
{
public:
LLVector3 mPosition;
EManipPart mManipID;
EScaleManipulatorType mType;
ManipulatorHandle(LLVector3 pos, EManipPart id, EScaleManipulatorType type):mPosition(pos), mManipID(id), mType(type){}
};
static const S32 NUM_MANIPULATORS = 14;
LLManipScale( LLToolComposite* composite );
~LLManipScale();
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); // decided which manipulator, if any, should be highlighted by mouse hover
virtual BOOL canAffectSelection();
static void setUniform( BOOL b );
static BOOL getUniform();
static void setStretchTextures( BOOL b );
static BOOL getStretchTextures();
static void setShowAxes( BOOL b );
static BOOL getShowAxes();
private:
void renderCorners( const LLBBox& local_bbox );
void renderFaces( const LLBBox& local_bbox );
void renderBoxHandle( F32 x, F32 y, F32 z );
void renderAxisHandle( U32 part, const LLVector3& start, const LLVector3& end );
void renderGuidelinesPart( const LLBBox& local_bbox );
void renderSnapGuides( const LLBBox& local_bbox );
void revert();
inline void conditionalHighlight( U32 part, const LLColor4* highlight = NULL, const LLColor4* normal = NULL );
void drag( S32 x, S32 y );
void dragFace( S32 x, S32 y );
void dragCorner( S32 x, S32 y );
void sendUpdates( BOOL send_position_update, BOOL send_scale_update, BOOL corner = FALSE);
LLVector3 faceToUnitVector( S32 part ) const;
LLVector3 cornerToUnitVector( S32 part ) const;
LLVector3 edgeToUnitVector( S32 part ) const;
LLVector3 partToUnitVector( S32 part ) const;
LLVector3 unitVectorToLocalBBoxExtent( const LLVector3& v, const LLBBox& bbox ) const;
F32 partToMaxScale( S32 part, const LLBBox& bbox ) const;
F32 partToMinScale( S32 part, const LLBBox& bbox ) const;
LLVector3 nearestAxis( const LLVector3& v ) const;
void stretchFace( const LLVector3& drag_start_agent, const LLVector3& drag_delta_agent);
void adjustTextureRepeats(); // Adjusts texture coords based on mSavedScale and current scale, only works for boxes
void updateSnapGuides(const LLBBox& bbox);
private:
struct compare_manipulators
{
bool operator() (const ManipulatorHandle* const a, const ManipulatorHandle* const b) const
{
if (a->mType != b->mType)
return a->mType < b->mType;
else if (a->mPosition.mV[VZ] != b->mPosition.mV[VZ])
return a->mPosition.mV[VZ] < b->mPosition.mV[VZ];
else
return a->mManipID < b->mManipID;
}
};
F32 mScaledBoxHandleSize; //!< Handle size after scaling for selection feedback.
LLVector3d mDragStartPointGlobal;
LLVector3d mDragStartCenterGlobal; //!< The center of the bounding box of all selected objects at time of drag start.
LLVector3d mDragPointGlobal;
LLVector3d mDragFarHitGlobal;
S32 mLastMouseX;
S32 mLastMouseY;
BOOL mSendUpdateOnMouseUp;
U32 mLastUpdateFlags;
typedef std::set<ManipulatorHandle*, compare_manipulators> manipulator_list_t;
manipulator_list_t mProjectedManipulators;
LLVector4 mManipulatorVertices[14];
F32 mScaleSnapUnit1; //!< Size of snap multiples for the upper scale.
F32 mScaleSnapUnit2; //!< Size of snap multiples for the lower scale.
LLVector3 mScalePlaneNormal1; //!< Normal of plane in which scale occurs that most faces camera.
LLVector3 mScalePlaneNormal2; //!< Normal of plane in which scale occurs that most faces camera.
LLVector3 mSnapGuideDir1; //!< The direction in which the upper snap guide tick marks face.
LLVector3 mSnapGuideDir2; //!< The direction in which the lower snap guide tick marks face.
LLVector3 mSnapDir1; //!< The direction in which the upper snap guides face.
LLVector3 mSnapDir2; //!< The direction in which the lower snap guides face.
F32 mSnapRegimeOffset; //!< How far off the scale axis centerline the mouse can be before it exits/enters the snap regime.
F32 mTickPixelSpacing1; //!< The pixel spacing between snap guide tick marks for the upper scale.
F32 mTickPixelSpacing2; //!< The pixel spacing between snap guide tick marks for the lower scale.
F32 mSnapGuideLength;
LLVector3 mScaleCenter; //!< The location of the origin of the scaling operation.
LLVector3 mScaleDir; //!< The direction of the scaling action. In face-dragging this is aligned with one of the cardinal axis relative to the prim, but in corner-dragging this is along the diagonal.
F32 mScaleSnappedValue; //!< The distance of the current position nearest the mouse location, measured along mScaleDir. Is measured either from the center or from the far face/corner depending upon whether uniform scaling is true or false respectively.
ESnapRegimes mSnapRegime; //<! Which, if any, snap regime the cursor is currently residing in.
F32 mManipulatorScales[NUM_MANIPULATORS];
F32 mBoxHandleSize[NUM_MANIPULATORS]; // The size of the handles at the corners of the bounding box
S32 mFirstClickX;
S32 mFirstClickY;
bool mIsFirstClick;
};
#endif // LL_MANIPSCALE_H
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