/** * @file lljoystickbutton.cpp * @brief LLJoystick class implementation * * $LicenseInfo:firstyear=2001&license=viewerlgpl$ * 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 * $/LicenseInfo$ */ #include "llviewerprecompiledheaders.h" #include "lljoystickbutton.h" // Library includes #include "llcoord.h" #include "indra_constants.h" #include "llrender.h" // Project includes #include "llui.h" #include "llagent.h" #include "llagentcamera.h" #include "llviewertexture.h" #include "llviewertexturelist.h" #include "llviewerwindow.h" #include "llmoveview.h" #include "llglheaders.h" static LLDefaultChildRegistry::Register<LLJoystickAgentSlide> r1("joystick_slide"); static LLDefaultChildRegistry::Register<LLJoystickAgentTurn> r2("joystick_turn"); static LLDefaultChildRegistry::Register<LLJoystickCameraRotate> r3("joystick_rotate"); static LLDefaultChildRegistry::Register<LLJoystickCameraTrack> r5("joystick_track"); const F32 NUDGE_TIME = 0.25f; // in seconds const F32 ORBIT_NUDGE_RATE = 0.05f; // fraction of normal speed // // Public Methods // void QuadrantNames::declareValues() { declare("origin", JQ_ORIGIN); declare("up", JQ_UP); declare("down", JQ_DOWN); declare("left", JQ_LEFT); declare("right", JQ_RIGHT); } LLJoystick::LLJoystick(const LLJoystick::Params& p) : LLButton(p), mInitialOffset(0, 0), mLastMouse(0, 0), mFirstMouse(0, 0), mVertSlopNear(0), mVertSlopFar(0), mHorizSlopNear(0), mHorizSlopFar(0), mHeldDown(FALSE), mHeldDownTimer(), mInitialQuadrant(p.quadrant) { setHeldDownCallback(&LLJoystick::onBtnHeldDown, this); } void LLJoystick::updateSlop() { mVertSlopNear = getRect().getHeight(); mVertSlopFar = getRect().getHeight() * 2; mHorizSlopNear = getRect().getWidth(); mHorizSlopFar = getRect().getWidth() * 2; // Compute initial mouse offset based on initial quadrant. // Place the mouse evenly between the near and far zones. switch (mInitialQuadrant) { case JQ_ORIGIN: mInitialOffset.set(0, 0); break; case JQ_UP: mInitialOffset.mX = 0; mInitialOffset.mY = (mVertSlopNear + mVertSlopFar) / 2; break; case JQ_DOWN: mInitialOffset.mX = 0; mInitialOffset.mY = - (mVertSlopNear + mVertSlopFar) / 2; break; case JQ_LEFT: mInitialOffset.mX = - (mHorizSlopNear + mHorizSlopFar) / 2; mInitialOffset.mY = 0; break; case JQ_RIGHT: mInitialOffset.mX = (mHorizSlopNear + mHorizSlopFar) / 2; mInitialOffset.mY = 0; break; default: llerrs << "LLJoystick::LLJoystick() - bad switch case" << llendl; break; } return; } bool LLJoystick::pointInCircle(S32 x, S32 y) const { if(this->getLocalRect().getHeight() != this->getLocalRect().getWidth()) { llwarns << "Joystick shape is not square"<<llendl; return true; } //center is x and y coordinates of center of joystick circle, and also its radius int center = this->getLocalRect().getHeight()/2; bool in_circle = (x - center) * (x - center) + (y - center) * (y - center) <= center * center; return in_circle; } BOOL LLJoystick::handleMouseDown(S32 x, S32 y, MASK mask) { //llinfos << "joystick mouse down " << x << ", " << y << llendl; bool handles = false; if(pointInCircle(x, y)) { mLastMouse.set(x, y); mFirstMouse.set(x, y); mMouseDownTimer.reset(); handles = LLButton::handleMouseDown(x, y, mask); } return handles; } BOOL LLJoystick::handleMouseUp(S32 x, S32 y, MASK mask) { // llinfos << "joystick mouse up " << x << ", " << y << llendl; if( hasMouseCapture() ) { mLastMouse.set(x, y); mHeldDown = FALSE; onMouseUp(); } return LLButton::handleMouseUp(x, y, mask); } BOOL LLJoystick::handleHover(S32 x, S32 y, MASK mask) { if( hasMouseCapture() ) { mLastMouse.set(x, y); } return LLButton::handleHover(x, y, mask); } F32 LLJoystick::getElapsedHeldDownTime() { if( mHeldDown ) { return getHeldDownTime(); } else { return 0.f; } } // static void LLJoystick::onBtnHeldDown(void *userdata) { LLJoystick *self = (LLJoystick *)userdata; if (self) { self->mHeldDown = TRUE; self->onHeldDown(); } } EJoystickQuadrant LLJoystick::selectQuadrant(LLXMLNodePtr node) { EJoystickQuadrant quadrant = JQ_RIGHT; if (node->hasAttribute("quadrant")) { std::string quadrant_name; node->getAttributeString("quadrant", quadrant_name); quadrant = quadrantFromName(quadrant_name); } return quadrant; } std::string LLJoystick::nameFromQuadrant(EJoystickQuadrant quadrant) { if (quadrant == JQ_ORIGIN) return std::string("origin"); else if (quadrant == JQ_UP) return std::string("up"); else if (quadrant == JQ_DOWN) return std::string("down"); else if (quadrant == JQ_LEFT) return std::string("left"); else if (quadrant == JQ_RIGHT) return std::string("right"); else return std::string(); } EJoystickQuadrant LLJoystick::quadrantFromName(const std::string& sQuadrant) { EJoystickQuadrant quadrant = JQ_RIGHT; if (sQuadrant == "origin") { quadrant = JQ_ORIGIN; } else if (sQuadrant == "up") { quadrant = JQ_UP; } else if (sQuadrant == "down") { quadrant = JQ_DOWN; } else if (sQuadrant == "left") { quadrant = JQ_LEFT; } else if (sQuadrant == "right") { quadrant = JQ_RIGHT; } return quadrant; } //------------------------------------------------------------------------------- // LLJoystickAgentTurn //------------------------------------------------------------------------------- void LLJoystickAgentTurn::onHeldDown() { F32 time = getElapsedHeldDownTime(); updateSlop(); //llinfos << "move forward/backward (and/or turn)" << llendl; S32 dx = mLastMouse.mX - mFirstMouse.mX + mInitialOffset.mX; S32 dy = mLastMouse.mY - mFirstMouse.mY + mInitialOffset.mY; float m = (float) (dx)/abs(dy); if (m > 1) { m = 1; } else if (m < -1) { m = -1; } gAgent.moveYaw(-LLFloaterMove::getYawRate(time)*m); // handle forward/back movement if (dy > mVertSlopFar) { // ...if mouse is forward of run region run forward gAgent.moveAt(1); } else if (dy > mVertSlopNear) { if( time < NUDGE_TIME ) { gAgent.moveAtNudge(1); } else { // ...else if mouse is forward of walk region walk forward // JC 9/5/2002 - Always run / move quickly. gAgent.moveAt(1); } } else if (dy < -mVertSlopFar) { // ...else if mouse is behind run region run backward gAgent.moveAt(-1); } else if (dy < -mVertSlopNear) { if( time < NUDGE_TIME ) { gAgent.moveAtNudge(-1); } else { // ...else if mouse is behind walk region walk backward // JC 9/5/2002 - Always run / move quickly. gAgent.moveAt(-1); } } } //------------------------------------------------------------------------------- // LLJoystickAgentSlide //------------------------------------------------------------------------------- void LLJoystickAgentSlide::onMouseUp() { F32 time = getElapsedHeldDownTime(); if( time < NUDGE_TIME ) { switch (mInitialQuadrant) { case JQ_LEFT: gAgent.moveLeftNudge(1); break; case JQ_RIGHT: gAgent.moveLeftNudge(-1); break; default: break; } } } void LLJoystickAgentSlide::onHeldDown() { //llinfos << "slide left/right (and/or move forward/backward)" << llendl; updateSlop(); S32 dx = mLastMouse.mX - mFirstMouse.mX + mInitialOffset.mX; S32 dy = mLastMouse.mY - mFirstMouse.mY + mInitialOffset.mY; // handle left-right sliding if (dx > mHorizSlopNear) { gAgent.moveLeft(-1); } else if (dx < -mHorizSlopNear) { gAgent.moveLeft(1); } // handle forward/back movement if (dy > mVertSlopFar) { // ...if mouse is forward of run region run forward gAgent.moveAt(1); } else if (dy > mVertSlopNear) { // ...else if mouse is forward of walk region walk forward gAgent.moveAtNudge(1); } else if (dy < -mVertSlopFar) { // ...else if mouse is behind run region run backward gAgent.moveAt(-1); } else if (dy < -mVertSlopNear) { // ...else if mouse is behind walk region walk backward gAgent.moveAtNudge(-1); } } //------------------------------------------------------------------------------- // LLJoystickCameraRotate //------------------------------------------------------------------------------- LLJoystickCameraRotate::LLJoystickCameraRotate(const LLJoystickCameraRotate::Params& p) : LLJoystick(p), mInLeft( FALSE ), mInTop( FALSE ), mInRight( FALSE ), mInBottom( FALSE ) { } void LLJoystickCameraRotate::updateSlop() { // do the initial offset calculation based on mousedown location // small fixed slop region mVertSlopNear = 16; mVertSlopFar = 32; mHorizSlopNear = 16; mHorizSlopFar = 32; return; } BOOL LLJoystickCameraRotate::handleMouseDown(S32 x, S32 y, MASK mask) { updateSlop(); // Set initial offset based on initial click location S32 horiz_center = getRect().getWidth() / 2; S32 vert_center = getRect().getHeight() / 2; S32 dx = x - horiz_center; S32 dy = y - vert_center; if (dy > dx && dy > -dx) { // top mInitialOffset.mX = 0; mInitialOffset.mY = (mVertSlopNear + mVertSlopFar) / 2; mInitialQuadrant = JQ_UP; } else if (dy > dx && dy <= -dx) { // left mInitialOffset.mX = - (mHorizSlopNear + mHorizSlopFar) / 2; mInitialOffset.mY = 0; mInitialQuadrant = JQ_LEFT; } else if (dy <= dx && dy <= -dx) { // bottom mInitialOffset.mX = 0; mInitialOffset.mY = - (mVertSlopNear + mVertSlopFar) / 2; mInitialQuadrant = JQ_DOWN; } else { // right mInitialOffset.mX = (mHorizSlopNear + mHorizSlopFar) / 2; mInitialOffset.mY = 0; mInitialQuadrant = JQ_RIGHT; } return LLJoystick::handleMouseDown(x, y, mask); } void LLJoystickCameraRotate::onHeldDown() { updateSlop(); S32 dx = mLastMouse.mX - mFirstMouse.mX + mInitialOffset.mX; S32 dy = mLastMouse.mY - mFirstMouse.mY + mInitialOffset.mY; // left-right rotation if (dx > mHorizSlopNear) { gAgentCamera.unlockView(); gAgentCamera.setOrbitLeftKey(getOrbitRate()); } else if (dx < -mHorizSlopNear) { gAgentCamera.unlockView(); gAgentCamera.setOrbitRightKey(getOrbitRate()); } // over/under rotation if (dy > mVertSlopNear) { gAgentCamera.unlockView(); gAgentCamera.setOrbitUpKey(getOrbitRate()); } else if (dy < -mVertSlopNear) { gAgentCamera.unlockView(); gAgentCamera.setOrbitDownKey(getOrbitRate()); } } F32 LLJoystickCameraRotate::getOrbitRate() { F32 time = getElapsedHeldDownTime(); if( time < NUDGE_TIME ) { F32 rate = ORBIT_NUDGE_RATE + time * (1 - ORBIT_NUDGE_RATE)/ NUDGE_TIME; //llinfos << rate << llendl; return rate; } else { return 1; } } // Only used for drawing void LLJoystickCameraRotate::setToggleState( BOOL left, BOOL top, BOOL right, BOOL bottom ) { mInLeft = left; mInTop = top; mInRight = right; mInBottom = bottom; } void LLJoystickCameraRotate::draw() { LLGLSUIDefault gls_ui; getImageUnselected()->draw( 0, 0 ); LLPointer<LLUIImage> image = getImageSelected(); if( mInTop ) { drawRotatedImage( getImageSelected(), 0 ); } if( mInRight ) { drawRotatedImage( getImageSelected(), 1 ); } if( mInBottom ) { drawRotatedImage( getImageSelected(), 2 ); } if( mInLeft ) { drawRotatedImage( getImageSelected(), 3 ); } } // Draws image rotated by multiples of 90 degrees void LLJoystickCameraRotate::drawRotatedImage( LLPointer<LLUIImage> image, S32 rotations ) { S32 width = image->getWidth(); S32 height = image->getHeight(); LLTexture* texture = image->getImage(); /* * Scale texture coordinate system * to handle the different between image size and size of texture. * If we will use default matrix, * it may break texture mapping after rotation. * see EXT-2023 Camera floater: arrows became shifted when pressed. */ F32 uv[][2] = { { (F32)width/texture->getWidth(), (F32)height/texture->getHeight() }, { 0.f, (F32)height/texture->getHeight() }, { 0.f, 0.f }, { (F32)width/texture->getWidth(), 0.f } }; gGL.getTexUnit(0)->bind(texture); gGL.color4fv(UI_VERTEX_COLOR.mV); gGL.begin(LLRender::QUADS); { gGL.texCoord2fv( uv[ (rotations + 0) % 4]); gGL.vertex2i(width, height ); gGL.texCoord2fv( uv[ (rotations + 1) % 4]); gGL.vertex2i(0, height ); gGL.texCoord2fv( uv[ (rotations + 2) % 4]); gGL.vertex2i(0, 0); gGL.texCoord2fv( uv[ (rotations + 3) % 4]); gGL.vertex2i(width, 0); } gGL.end(); } //------------------------------------------------------------------------------- // LLJoystickCameraTrack //------------------------------------------------------------------------------- LLJoystickCameraTrack::Params::Params() { held_down_delay.seconds(0.0); } LLJoystickCameraTrack::LLJoystickCameraTrack(const LLJoystickCameraTrack::Params& p) : LLJoystickCameraRotate(p) {} void LLJoystickCameraTrack::onHeldDown() { updateSlop(); S32 dx = mLastMouse.mX - mFirstMouse.mX + mInitialOffset.mX; S32 dy = mLastMouse.mY - mFirstMouse.mY + mInitialOffset.mY; if (dx > mVertSlopNear) { gAgentCamera.unlockView(); gAgentCamera.setPanRightKey(getOrbitRate()); } else if (dx < -mVertSlopNear) { gAgentCamera.unlockView(); gAgentCamera.setPanLeftKey(getOrbitRate()); } // over/under rotation if (dy > mVertSlopNear) { gAgentCamera.unlockView(); gAgentCamera.setPanUpKey(getOrbitRate()); } else if (dy < -mVertSlopNear) { gAgentCamera.unlockView(); gAgentCamera.setPanDownKey(getOrbitRate()); } }