mirror of https://github.com/OpenMW/openmw.git
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
437 lines
15 KiB
C++
437 lines
15 KiB
C++
#include "sdlinputwrapper.hpp"
|
|
|
|
#include <components/debug/debuglog.hpp>
|
|
#include <components/settings/settings.hpp>
|
|
|
|
#include <osgViewer/Viewer>
|
|
|
|
namespace SDLUtil
|
|
{
|
|
|
|
InputWrapper::InputWrapper(SDL_Window* window, osg::ref_ptr<osgViewer::Viewer> viewer, bool grab)
|
|
: mSDLWindow(window)
|
|
, mViewer(std::move(viewer))
|
|
, mMouseListener(nullptr)
|
|
, mSensorListener(nullptr)
|
|
, mKeyboardListener(nullptr)
|
|
, mWindowListener(nullptr)
|
|
, mConListener(nullptr)
|
|
, mWarpX(0)
|
|
, mWarpY(0)
|
|
, mWarpCompensate(false)
|
|
, mWrapPointer(false)
|
|
, mAllowGrab(grab)
|
|
, mWantMouseVisible(false)
|
|
, mWantGrab(false)
|
|
, mWantRelative(false)
|
|
, mGrabPointer(false)
|
|
, mMouseRelative(false)
|
|
, mFirstMouseMove(true)
|
|
, mMouseZ(0)
|
|
, mMouseX(0)
|
|
, mMouseY(0)
|
|
, mWindowHasFocus(true)
|
|
, mMouseInWindow(true)
|
|
{
|
|
Uint32 flags = SDL_GetWindowFlags(mSDLWindow);
|
|
mWindowHasFocus = (flags & SDL_WINDOW_INPUT_FOCUS);
|
|
mMouseInWindow = (flags & SDL_WINDOW_MOUSE_FOCUS);
|
|
_setWindowScale();
|
|
}
|
|
|
|
InputWrapper::~InputWrapper() {}
|
|
|
|
void InputWrapper::_setWindowScale()
|
|
{
|
|
int w, h;
|
|
SDL_GetWindowSize(mSDLWindow, &w, &h);
|
|
int dw, dh;
|
|
SDL_GL_GetDrawableSize(mSDLWindow, &dw, &dh);
|
|
mScaleX = dw / w;
|
|
mScaleY = dh / h;
|
|
}
|
|
|
|
void InputWrapper::capture(bool windowEventsOnly)
|
|
{
|
|
mViewer->getEventQueue()->frame(0.f);
|
|
|
|
SDL_PumpEvents();
|
|
|
|
SDL_Event evt;
|
|
|
|
if (windowEventsOnly)
|
|
{
|
|
// During loading, handle window events, discard button presses and mouse movement and keep others for later
|
|
while (SDL_PeepEvents(&evt, 1, SDL_GETEVENT, SDL_WINDOWEVENT, SDL_WINDOWEVENT) > 0)
|
|
handleWindowEvent(evt);
|
|
|
|
SDL_FlushEvent(SDL_KEYDOWN);
|
|
SDL_FlushEvent(SDL_CONTROLLERBUTTONDOWN);
|
|
SDL_FlushEvent(SDL_MOUSEBUTTONDOWN);
|
|
SDL_FlushEvent(SDL_MOUSEMOTION);
|
|
SDL_FlushEvent(SDL_MOUSEWHEEL);
|
|
|
|
return;
|
|
}
|
|
|
|
while (SDL_PollEvent(&evt))
|
|
{
|
|
switch (evt.type)
|
|
{
|
|
case SDL_MOUSEMOTION:
|
|
// Ignore this if it happened due to a warp
|
|
if (!_handleWarpMotion(evt.motion))
|
|
{
|
|
// If in relative mode, don't trigger events unless window has focus
|
|
if (!mWantRelative || mWindowHasFocus)
|
|
mMouseListener->mouseMoved(_packageMouseMotion(evt));
|
|
|
|
// Try to keep the mouse inside the window
|
|
if (mWindowHasFocus)
|
|
_wrapMousePointer(evt.motion);
|
|
}
|
|
break;
|
|
case SDL_MOUSEWHEEL:
|
|
mMouseListener->mouseMoved(_packageMouseMotion(evt));
|
|
mMouseListener->mouseWheelMoved(evt.wheel);
|
|
break;
|
|
case SDL_SENSORUPDATE:
|
|
mSensorListener->sensorUpdated(evt.sensor);
|
|
break;
|
|
case SDL_MOUSEBUTTONDOWN:
|
|
mMouseListener->mousePressed(evt.button, evt.button.button);
|
|
break;
|
|
case SDL_MOUSEBUTTONUP:
|
|
mMouseListener->mouseReleased(evt.button, evt.button.button);
|
|
break;
|
|
case SDL_KEYDOWN:
|
|
mKeyboardListener->keyPressed(evt.key);
|
|
|
|
if (!isModifierHeld(KMOD_ALT) && evt.key.keysym.sym >= SDLK_F1 && evt.key.keysym.sym <= SDLK_F12)
|
|
{
|
|
mViewer->getEventQueue()->keyPress(
|
|
osgGA::GUIEventAdapter::KEY_F1 + (evt.key.keysym.sym - SDLK_F1));
|
|
}
|
|
|
|
break;
|
|
case SDL_KEYUP:
|
|
if (!evt.key.repeat)
|
|
{
|
|
mKeyboardListener->keyReleased(evt.key);
|
|
|
|
if (!isModifierHeld(KMOD_ALT) && evt.key.keysym.sym >= SDLK_F1
|
|
&& evt.key.keysym.sym <= SDLK_F12)
|
|
mViewer->getEventQueue()->keyRelease(
|
|
osgGA::GUIEventAdapter::KEY_F1 + (evt.key.keysym.sym - SDLK_F1));
|
|
}
|
|
|
|
break;
|
|
case SDL_TEXTEDITING:
|
|
break;
|
|
case SDL_TEXTINPUT:
|
|
mKeyboardListener->textInput(evt.text);
|
|
break;
|
|
case SDL_KEYMAPCHANGED:
|
|
break;
|
|
case SDL_JOYHATMOTION: // As we manage everything with GameController, don't even bother with these.
|
|
case SDL_JOYAXISMOTION:
|
|
case SDL_JOYBUTTONDOWN:
|
|
case SDL_JOYBUTTONUP:
|
|
case SDL_JOYDEVICEADDED:
|
|
case SDL_JOYDEVICEREMOVED:
|
|
break;
|
|
case SDL_CONTROLLERDEVICEADDED:
|
|
if (mConListener)
|
|
mConListener->controllerAdded(
|
|
1, evt.cdevice); // We only support one joystick, so give everything a generic deviceID
|
|
break;
|
|
case SDL_CONTROLLERDEVICEREMOVED:
|
|
if (mConListener)
|
|
mConListener->controllerRemoved(evt.cdevice);
|
|
break;
|
|
case SDL_CONTROLLERBUTTONDOWN:
|
|
if (mConListener)
|
|
mConListener->buttonPressed(1, evt.cbutton);
|
|
break;
|
|
case SDL_CONTROLLERBUTTONUP:
|
|
if (mConListener)
|
|
mConListener->buttonReleased(1, evt.cbutton);
|
|
break;
|
|
case SDL_CONTROLLERAXISMOTION:
|
|
if (mConListener)
|
|
mConListener->axisMoved(1, evt.caxis);
|
|
break;
|
|
#if SDL_VERSION_ATLEAST(2, 0, 14)
|
|
case SDL_CONTROLLERSENSORUPDATE:
|
|
// controller sensor data is received on demand
|
|
break;
|
|
case SDL_CONTROLLERTOUCHPADDOWN:
|
|
mConListener->touchpadPressed(1, TouchEvent(evt.ctouchpad));
|
|
break;
|
|
case SDL_CONTROLLERTOUCHPADMOTION:
|
|
mConListener->touchpadMoved(1, TouchEvent(evt.ctouchpad));
|
|
break;
|
|
case SDL_CONTROLLERTOUCHPADUP:
|
|
mConListener->touchpadReleased(1, TouchEvent(evt.ctouchpad));
|
|
break;
|
|
#endif
|
|
case SDL_WINDOWEVENT:
|
|
handleWindowEvent(evt);
|
|
break;
|
|
case SDL_QUIT:
|
|
if (mWindowListener)
|
|
mWindowListener->windowClosed();
|
|
break;
|
|
case SDL_DISPLAYEVENT:
|
|
switch (evt.display.event)
|
|
{
|
|
case SDL_DISPLAYEVENT_ORIENTATION:
|
|
if (mSensorListener
|
|
&& evt.display.display == (unsigned int)Settings::Manager::getInt("screen", "Video"))
|
|
mSensorListener->displayOrientationChanged();
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
case SDL_CLIPBOARDUPDATE:
|
|
break; // We don't need this event, clipboard is retrieved on demand
|
|
|
|
case SDL_FINGERDOWN:
|
|
case SDL_FINGERUP:
|
|
case SDL_FINGERMOTION:
|
|
case SDL_DOLLARGESTURE:
|
|
case SDL_DOLLARRECORD:
|
|
case SDL_MULTIGESTURE:
|
|
// No use for touch & gesture events
|
|
break;
|
|
|
|
case SDL_APP_WILLENTERBACKGROUND:
|
|
case SDL_APP_WILLENTERFOREGROUND:
|
|
case SDL_APP_DIDENTERBACKGROUND:
|
|
case SDL_APP_DIDENTERFOREGROUND:
|
|
// We do not need background/foreground switch event for mobile devices so far
|
|
break;
|
|
|
|
case SDL_APP_TERMINATING:
|
|
// There is nothing we can do here.
|
|
break;
|
|
|
|
case SDL_APP_LOWMEMORY:
|
|
Log(Debug::Warning) << "System reports that free RAM on device is running low. You may encounter "
|
|
"an unexpected behaviour.";
|
|
break;
|
|
|
|
default:
|
|
Log(Debug::Info) << "Unhandled SDL event of type 0x" << std::hex << evt.type;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void InputWrapper::handleWindowEvent(const SDL_Event& evt)
|
|
{
|
|
switch (evt.window.event)
|
|
{
|
|
case SDL_WINDOWEVENT_ENTER:
|
|
mMouseInWindow = true;
|
|
updateMouseSettings();
|
|
break;
|
|
case SDL_WINDOWEVENT_LEAVE:
|
|
mMouseInWindow = false;
|
|
updateMouseSettings();
|
|
break;
|
|
case SDL_WINDOWEVENT_MOVED:
|
|
// I'm not sure what OSG is using the window position for, but I don't think it's needed,
|
|
// so we ignore window moved events (improves window movement performance)
|
|
break;
|
|
case SDL_WINDOWEVENT_SIZE_CHANGED:
|
|
int w, h;
|
|
SDL_GL_GetDrawableSize(mSDLWindow, &w, &h);
|
|
int x, y;
|
|
SDL_GetWindowPosition(mSDLWindow, &x, &y);
|
|
mViewer->getCamera()->getGraphicsContext()->resized(x, y, w, h);
|
|
|
|
mViewer->getEventQueue()->windowResize(x, y, w, h);
|
|
|
|
if (mWindowListener)
|
|
mWindowListener->windowResized(w, h);
|
|
|
|
_setWindowScale();
|
|
|
|
break;
|
|
|
|
case SDL_WINDOWEVENT_RESIZED:
|
|
// This should also fire SIZE_CHANGED, so no need to handle
|
|
break;
|
|
|
|
case SDL_WINDOWEVENT_FOCUS_GAINED:
|
|
mWindowHasFocus = true;
|
|
updateMouseSettings();
|
|
break;
|
|
case SDL_WINDOWEVENT_FOCUS_LOST:
|
|
mWindowHasFocus = false;
|
|
updateMouseSettings();
|
|
break;
|
|
case SDL_WINDOWEVENT_CLOSE:
|
|
break;
|
|
case SDL_WINDOWEVENT_SHOWN:
|
|
case SDL_WINDOWEVENT_RESTORED:
|
|
if (mWindowListener)
|
|
mWindowListener->windowVisibilityChange(true);
|
|
break;
|
|
case SDL_WINDOWEVENT_HIDDEN:
|
|
case SDL_WINDOWEVENT_MINIMIZED:
|
|
if (mWindowListener)
|
|
mWindowListener->windowVisibilityChange(false);
|
|
break;
|
|
}
|
|
}
|
|
|
|
bool InputWrapper::isModifierHeld(int mod)
|
|
{
|
|
return (SDL_GetModState() & mod) != 0;
|
|
}
|
|
|
|
bool InputWrapper::isKeyDown(SDL_Scancode key)
|
|
{
|
|
return (SDL_GetKeyboardState(nullptr)[key]) != 0;
|
|
}
|
|
|
|
/// \brief Moves the mouse to the specified point within the viewport
|
|
void InputWrapper::warpMouse(int x, int y)
|
|
{
|
|
SDL_WarpMouseInWindow(mSDLWindow, x, y);
|
|
mWarpCompensate = true;
|
|
mWarpX = x;
|
|
mWarpY = y;
|
|
}
|
|
|
|
/// \brief Locks the pointer to the window
|
|
void InputWrapper::setGrabPointer(bool grab)
|
|
{
|
|
mWantGrab = grab;
|
|
updateMouseSettings();
|
|
}
|
|
|
|
/// \brief Set the mouse to relative positioning. Doesn't move the cursor
|
|
/// and disables mouse acceleration.
|
|
void InputWrapper::setMouseRelative(bool relative)
|
|
{
|
|
mWantRelative = relative;
|
|
updateMouseSettings();
|
|
}
|
|
|
|
void InputWrapper::setMouseVisible(bool visible)
|
|
{
|
|
mWantMouseVisible = visible;
|
|
updateMouseSettings();
|
|
}
|
|
|
|
void InputWrapper::updateMouseSettings()
|
|
{
|
|
mGrabPointer = mWantGrab && mMouseInWindow && mWindowHasFocus;
|
|
SDL_SetWindowGrab(mSDLWindow, mGrabPointer && mAllowGrab ? SDL_TRUE : SDL_FALSE);
|
|
|
|
SDL_ShowCursor(mWantMouseVisible || !mWindowHasFocus);
|
|
|
|
bool relative = mWantRelative && mMouseInWindow && mWindowHasFocus;
|
|
if (mMouseRelative == relative)
|
|
return;
|
|
|
|
mMouseRelative = relative;
|
|
|
|
mWrapPointer = false;
|
|
|
|
// eep, wrap the pointer manually if the input driver doesn't support
|
|
// relative positioning natively
|
|
// also use wrapping if no-grab was specified in options (SDL_SetRelativeMouseMode
|
|
// appears to eat the mouse cursor when pausing in a debugger)
|
|
bool success = mAllowGrab && SDL_SetRelativeMouseMode(relative ? SDL_TRUE : SDL_FALSE) == 0;
|
|
if (relative && !success)
|
|
mWrapPointer = true;
|
|
|
|
// now remove all mouse events using the old setting from the queue
|
|
SDL_PumpEvents();
|
|
SDL_FlushEvent(SDL_MOUSEMOTION);
|
|
}
|
|
|
|
/// \brief Internal method for ignoring relative motions as a side effect
|
|
/// of warpMouse()
|
|
bool InputWrapper::_handleWarpMotion(const SDL_MouseMotionEvent& evt)
|
|
{
|
|
if (!mWarpCompensate)
|
|
return false;
|
|
|
|
// this was a warp event, signal the caller to eat it.
|
|
if (evt.x == mWarpX && evt.y == mWarpY)
|
|
{
|
|
mWarpCompensate = false;
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/// \brief Wrap the mouse to the viewport
|
|
void InputWrapper::_wrapMousePointer(const SDL_MouseMotionEvent& evt)
|
|
{
|
|
// don't wrap if we don't want relative movements, support relative
|
|
// movements natively, or aren't grabbing anyways
|
|
if (!mMouseRelative || !mWrapPointer || !mGrabPointer)
|
|
return;
|
|
|
|
int width = 0;
|
|
int height = 0;
|
|
|
|
SDL_GetWindowSize(mSDLWindow, &width, &height);
|
|
|
|
const int FUDGE_FACTOR_X = width / 4;
|
|
const int FUDGE_FACTOR_Y = height / 4;
|
|
|
|
// warp the mouse if it's about to go outside the window
|
|
if (evt.x - FUDGE_FACTOR_X < 0 || evt.x + FUDGE_FACTOR_X > width || evt.y - FUDGE_FACTOR_Y < 0
|
|
|| evt.y + FUDGE_FACTOR_Y > height)
|
|
{
|
|
warpMouse(width / 2, height / 2);
|
|
}
|
|
}
|
|
|
|
/// \brief Package mouse and mousewheel motions into a single event
|
|
MouseMotionEvent InputWrapper::_packageMouseMotion(const SDL_Event& evt)
|
|
{
|
|
MouseMotionEvent pack_evt = {};
|
|
pack_evt.x = mMouseX * mScaleX;
|
|
pack_evt.y = mMouseY * mScaleY;
|
|
pack_evt.z = mMouseZ;
|
|
|
|
if (evt.type == SDL_MOUSEMOTION)
|
|
{
|
|
pack_evt.x = mMouseX = evt.motion.x * mScaleX;
|
|
pack_evt.y = mMouseY = evt.motion.y * mScaleY;
|
|
pack_evt.xrel = evt.motion.xrel * mScaleX;
|
|
pack_evt.yrel = evt.motion.yrel * mScaleY;
|
|
pack_evt.type = SDL_MOUSEMOTION;
|
|
if (mFirstMouseMove)
|
|
{
|
|
// first event should be treated as non-relative, since there's no point of reference
|
|
// SDL then (incorrectly) uses (0,0) as point of reference, on Linux at least...
|
|
pack_evt.xrel = pack_evt.yrel = 0;
|
|
mFirstMouseMove = false;
|
|
}
|
|
}
|
|
else if (evt.type == SDL_MOUSEWHEEL)
|
|
{
|
|
mMouseZ += pack_evt.zrel = (evt.wheel.y * 120);
|
|
pack_evt.z = mMouseZ;
|
|
pack_evt.type = SDL_MOUSEWHEEL;
|
|
}
|
|
else
|
|
{
|
|
throw std::runtime_error("Tried to package non-motion event!");
|
|
}
|
|
|
|
return pack_evt;
|
|
}
|
|
}
|