/** * @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" 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(); }; #endif // LL_LLJOYSTICKBUTTON_H