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/**
* @file lljoystickbutton.h
* @brief LLJoystick 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_LLJOYSTICKBUTTON_H
#define LL_LLJOYSTICKBUTTON_H
#include "llbutton.h"
#include "llcoord.h"
#include "llviewertexture.h"
#include "llquaternion.h"
typedef enum e_joystick_quadrant
{
JQ_ORIGIN,
JQ_UP,
JQ_DOWN,
JQ_LEFT,
JQ_RIGHT
} EJoystickQuadrant;
struct QuadrantNames : public LLInitParam::TypeValuesHelper<EJoystickQuadrant, QuadrantNames>
{
static void declareValues();
};
class LLJoystick
: public LLButton
{
public:
struct Params
: public LLInitParam::Block<Params, LLButton::Params>
{
Optional<EJoystickQuadrant, QuadrantNames> quadrant;
Params()
: quadrant("quadrant", JQ_ORIGIN)
{
changeDefault(label, "");
}
};
LLJoystick(const Params&);
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 onMouseUp() {}
virtual void onHeldDown() = 0;
F32 getElapsedHeldDownTime();
static void onBtnHeldDown(void *userdata); // called by llbutton callback handler
void setInitialQuadrant(EJoystickQuadrant initial) { mInitialQuadrant = initial; };
/**
* Checks if click location is inside joystick circle.
*
* Image containing circle is square and this square has adherent points with joystick
* circle. Make sure to change method according to shape other than square.
*/
bool pointInCircle(S32 x, S32 y) const;
bool pointInCenterDot(S32 x, S32 y, S32 radius) const;
static std::string nameFromQuadrant(const EJoystickQuadrant quadrant);
static EJoystickQuadrant quadrantFromName(const std::string& name);
static EJoystickQuadrant selectQuadrant(LLXMLNodePtr node);
protected:
virtual void updateSlop(); // recompute slop margins
protected:
EJoystickQuadrant mInitialQuadrant; // mousedown = click in this quadrant
LLCoordGL mInitialOffset; // pretend mouse started here
LLCoordGL mLastMouse; // where was mouse on last hover event
LLCoordGL mFirstMouse; // when mouse clicked, where was it
S32 mVertSlopNear; // where the slop regions end
S32 mVertSlopFar; // where the slop regions end
S32 mHorizSlopNear; // where the slop regions end
S32 mHorizSlopFar; // where the slop regions end
bool mHeldDown;
LLFrameTimer mHeldDownTimer;
};
// Turn agent left and right, move forward and back
class LLJoystickAgentTurn
: public LLJoystick
{
public:
struct Params : public LLJoystick::Params {};
LLJoystickAgentTurn(const Params& p) : LLJoystick(p) {}
virtual void onHeldDown();
};
// Slide left and right, move forward and back
class LLJoystickAgentSlide
: public LLJoystick
{
public:
struct Params : public LLJoystick::Params {};
LLJoystickAgentSlide(const Params& p) : LLJoystick(p) {}
virtual void onHeldDown();
virtual void onMouseUp();
};
// Rotate camera around the focus point
class LLJoystickCameraRotate
: public LLJoystick
{
public:
struct Params
: public LLInitParam::Block<Params, LLJoystick::Params>
{
Params()
{
changeDefault(held_down_delay.seconds, 0.0);
}
};
LLJoystickCameraRotate(const LLJoystickCameraRotate::Params&);
virtual void setToggleState( bool left, bool top, bool right, bool bottom );
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 onHeldDown();
virtual void resetJoystickCamera();
virtual void draw();
protected:
F32 getOrbitRate();
virtual void updateSlop();
void drawRotatedImage( LLPointer<LLUIImage> image, S32 rotations );
protected:
bool mInLeft;
bool mInTop;
bool mInRight;
bool mInBottom;
bool mInCenter;
std::string mCenterImageName;
};
// Track the camera focus point forward/backward and side to side
class LLJoystickCameraTrack
: public LLJoystickCameraRotate
{
public:
struct Params
: public LLInitParam::Block<Params, LLJoystickCameraRotate::Params>
{
Params();
};
LLJoystickCameraTrack(const LLJoystickCameraTrack::Params&);
virtual void onHeldDown();
virtual void resetJoystickCamera();
};
//
class LLJoystickQuaternion :
public LLJoystick
{
public:
struct Params :
public LLInitParam::Block<Params, LLJoystick::Params>
{
Params();
};
LLJoystickQuaternion(const LLJoystickQuaternion::Params &);
virtual void setToggleState(bool left, bool top, bool right, bool bottom);
virtual bool handleMouseDown(S32 x, S32 y, MASK mask);
virtual bool handleMouseUp(S32 x, S32 y, MASK mask);
virtual void onHeldDown();
virtual void draw();
void setRotation(const LLQuaternion &value);
LLQuaternion getRotation() const;
protected:
F32 getOrbitRate();
virtual void updateSlop();
void drawRotatedImage(LLPointer<LLUIImage> image, S32 rotations);
bool mInLeft;
bool mInTop;
bool mInRight;
bool mInBottom;
S32 mXAxisIndex;
S32 mYAxisIndex;
S32 mZAxisIndex;
LLVector3 mVectorZero;
LLQuaternion mRotation;
LLVector3 mUpDnAxis;
LLVector3 mLfRtAxis;
};
#endif // LL_LLJOYSTICKBUTTON_H
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