lljoystickbutton.h
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- /**
- * @file lljoystickbutton.h
- * @brief LLJoystick class definition
- *
- * $LicenseInfo:firstyear=2001&license=viewergpl$
- *
- * Copyright (c) 2001-2010, 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