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/**
* @file lljoystickbutton.h
* @brief LLJoystick class definition
*
* $LicenseInfo:firstyear=2001&license=viewergpl$
*
* Copyright (c) 2001-2009, Linden Research, Inc.
*
* Second Life Viewer Source Code
* The source code in this file ("Source Code") is provided by Linden Lab
* to you under the terms of the GNU General Public License, version 2.0
* ("GPL"), unless you have obtained a separate licensing agreement
* ("Other License"), formally executed by you and Linden Lab. Terms of
* the GPL can be found in doc/GPL-license.txt in this distribution, or
* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
*
* There are special exceptions to the terms and conditions of the GPL as
* it is applied to this Source Code. View the full text of the exception
* in the file doc/FLOSS-exception.txt in this software distribution, or
* online at
* http://secondlifegrid.net/programs/open_source/licensing/flossexception
*
* By copying, modifying or distributing this software, you acknowledge
* that you have read and understood your obligations described above,
* and agree to abide by those obligations.
*
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
* COMPLETENESS OR PERFORMANCE.
* $/LicenseInfo$
*/
#ifndef LL_LLJOYSTICKBUTTON_H
#define LL_LLJOYSTICKBUTTON_H
#include "llbutton.h"
#include "llcoord.h"
#include "llviewertexture.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)
{
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;
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()
{
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 void onHeldDown();
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;
};
// 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();
};
// Zoom the camera in and out
class LLJoystickCameraZoom
: public LLJoystick
{
public:
struct Params
: public LLInitParam::Block<Params, LLJoystick::Params>
{
Optional<LLUIImage*> plus_image;
Optional<LLUIImage*> minus_image;
Params()
: plus_image ("plus_image", NULL),
minus_image ("minus_image", NULL)
{
held_down_delay.seconds(0.0);
}
};
LLJoystickCameraZoom(const Params&);
virtual void setToggleState( BOOL top, BOOL bottom );
virtual BOOL handleMouseDown(S32 x, S32 y, MASK mask);
virtual void onHeldDown();
virtual void draw();
protected:
virtual void updateSlop();
F32 getOrbitRate();
protected:
BOOL mInTop;
BOOL mInBottom;
LLUIImagePtr mPlusInImage;
LLUIImagePtr mMinusInImage;
};
#endif // LL_LLJOYSTICKBUTTON_H
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