bool EventDispatcher::DispatchSDLEvent(const SDL_Event &event)
{
switch (event.type) {
case SDL_KEYDOWN:
return Dispatch(KeyboardEvent(KeyboardEvent::KEY_DOWN, KeySym(event.key.keysym.sym, SDL_Keymod(event.key.keysym.mod))));
case SDL_KEYUP:
return Dispatch(KeyboardEvent(KeyboardEvent::KEY_UP, KeySym(event.key.keysym.sym, SDL_Keymod(event.key.keysym.mod))));
case SDL_TEXTINPUT:
Uint32 unicode;
Text::utf8_decode_char(&unicode, event.text.text);
return Dispatch(TextInputEvent(unicode));
case SDL_MOUSEWHEEL:
return Dispatch(MouseWheelEvent(event.wheel.y > 0 ? MouseWheelEvent::WHEEL_UP : MouseWheelEvent::WHEEL_DOWN, m_lastMousePosition));
case SDL_MOUSEBUTTONDOWN:
return Dispatch(MouseButtonEvent(MouseButtonEvent::BUTTON_DOWN, MouseButtonFromSDLButton(event.button.button), Point(event.button.x,event.button.y)));
case SDL_MOUSEBUTTONUP:
return Dispatch(MouseButtonEvent(MouseButtonEvent::BUTTON_UP, MouseButtonFromSDLButton(event.button.button), Point(event.button.x,event.button.y)));
case SDL_MOUSEMOTION:
return Dispatch(MouseMotionEvent(Point(event.motion.x,event.motion.y), Point(event.motion.xrel, event.motion.yrel)));
}
return false;
}
bool EventDispatcher::DispatchSDLEvent(const SDL_Event &event)
{
switch (event.type) {
case SDL_KEYDOWN:
return Dispatch(KeyboardEvent(KeyboardEvent::KEY_DOWN, KeySym(event.key.keysym.sym, SDL_Keymod(event.key.keysym.mod)), event.key.repeat));
case SDL_KEYUP:
return Dispatch(KeyboardEvent(KeyboardEvent::KEY_UP, KeySym(event.key.keysym.sym, SDL_Keymod(event.key.keysym.mod)), event.key.repeat));
case SDL_TEXTINPUT:
Uint32 unicode;
Text::utf8_decode_char(&unicode, event.text.text);
return Dispatch(TextInputEvent(unicode));
case SDL_MOUSEWHEEL:
return Dispatch(MouseWheelEvent(event.wheel.y > 0 ? MouseWheelEvent::WHEEL_UP : MouseWheelEvent::WHEEL_DOWN, m_lastMousePosition));
case SDL_MOUSEBUTTONDOWN:
return Dispatch(MouseButtonEvent(MouseButtonEvent::BUTTON_DOWN, MouseButtonFromSDLButton(event.button.button), Point(event.button.x,event.button.y)));
case SDL_MOUSEBUTTONUP:
return Dispatch(MouseButtonEvent(MouseButtonEvent::BUTTON_UP, MouseButtonFromSDLButton(event.button.button), Point(event.button.x,event.button.y)));
case SDL_MOUSEMOTION:
return Dispatch(MouseMotionEvent(Point(event.motion.x,event.motion.y), Point(event.motion.xrel, event.motion.yrel)));
case SDL_JOYAXISMOTION:
// SDL joystick axis value is documented to have the range -32768 to 32767
// unfortunately this places the centre at -0.5, not at zero, which is clearly nuts...
// so since that doesn't make any sense, we assume the range is *actually* -32767 to +32767,
// and scale it accordingly, clamping the output so that if we *do* get -32768, it turns into -1
return Dispatch(JoystickAxisMotionEvent(event.jaxis.which, Clamp(event.jaxis.value * (1.0f / 32767.0f), -1.0f, 1.0f), event.jaxis.axis));
case SDL_JOYHATMOTION:
return Dispatch(JoystickHatMotionEvent(event.jhat.which, JoystickHatMotionEvent::JoystickHatDirection(event.jhat.value), event.jhat.hat));
case SDL_JOYBUTTONDOWN:
return Dispatch(JoystickButtonEvent(event.jbutton.which, JoystickButtonEvent::BUTTON_DOWN, event.jbutton.button));
case SDL_JOYBUTTONUP:
return Dispatch(JoystickButtonEvent(event.jbutton.which, JoystickButtonEvent::BUTTON_UP, event.jbutton.button));
}
return false;
}
KeySym KeySym::FromString(const std::string &spec)
{
static const std::string delim("+");
SDL_Keycode sym = SDLK_UNKNOWN;
Uint32 mod = KMOD_NONE;
size_t start = 0, end = 0;
while (end != std::string::npos) {
// get to the first non-delim char
start = spec.find_first_not_of(delim, end);
// read the end, no more to do
if (start == std::string::npos)
break;
// find the end - next delim or end of string
end = spec.find_first_of(delim, start);
// extract the fragment
const std::string token(spec.substr(start, (end == std::string::npos) ? std::string::npos : end - start));
if (token == "ctrl")
mod |= KMOD_CTRL;
else if (token == "shift")
mod |= KMOD_SHIFT;
else if (token == "alt")
mod |= KMOD_ALT;
else if (token == "meta")
mod |= KMOD_GUI;
else {
if (sym != SDLK_UNKNOWN)
Output("key spec '%s' has multiple keys, ignoring '%s'\n", spec.c_str(), token.c_str());
else {
for (const KeyMap *map = keymap; map->name; map++)
if (token == map->name)
sym = map->sym;
if (sym == SDLK_UNKNOWN)
Output("key spec '%s' has unkown token '%s', ignoring it\n", spec.c_str(), token.c_str());
}
}
}
return KeySym(sym, SDL_Keymod(mod));
}
