int processSdlEvents(void) {
SDL_Event event;
resetEvents();
while (SDL_PollEvent(&event)) {
switch(event.type) {
case SDL_KEYDOWN:
switch(event.key.keysym.sym) {
case SDLK_ESCAPE:
return 1;
break;
default:
keyboardEvent(&event.key,1);
break;
}
break;
case SDL_KEYUP:
keyboardEvent(&event.key,0);
break;
case SDL_MOUSEMOTION:
mouseMovedEvent(event.motion.x,event.motion.y,
event.motion.xrel,event.motion.yrel);
break;
case SDL_MOUSEBUTTONDOWN:
mouseButtonEvent(event.button.button,1);
break;
case SDL_MOUSEBUTTONUP:
mouseButtonEvent(event.button.button,0);
break;
case SDL_QUIT:
exit(0);
break;
}
/* If the next event to process is of type KEYUP or
* MOUSEBUTTONUP we want to stop processing here, so that
* a fast up/down event be noticed by Lua. */
if (SDL_PeepEvents(&event,1,SDL_PEEKEVENT,SDL_ALLEVENTS)) {
if (event.type == SDL_KEYUP ||
event.type == SDL_MOUSEBUTTONUP)
break; /* Go to lua before processing more. */
}
}
/* Call the setup function, only the first time. */
if (l81.epoch == 0) {
setup();
if (l81.luaerr) return l81.luaerr;
}
/* Call the draw function at every iteration. */
draw();
l81.epoch++;
/* Refresh the screen */
if (l81.opt_show_fps) showFPS();
SDL_Flip(l81.fb->screen);
/* Wait some time if the frame was produced in less than 1/FPS seconds. */
SDL_framerateDelay(&l81.fb->fps_mgr);
/* Stop execution on error */
return l81.luaerr;
}
void Application::processEvents(Context& context)
{
SDL_Event event;
while (SDL_PollEvent(&event))
{
switch (event.type)
{
case SDL_KEYDOWN:
case SDL_KEYUP:
keyEvent(context, createKeyPressEvent(event.key));
break;
case SDL_TEXTINPUT:
textInputEvent(context, TextInputEvent(event.text.text));
break;
case SDL_MOUSEBUTTONDOWN:
case SDL_MOUSEBUTTONUP:
mouseButtonEvent(context, createMouseButtonEvent(event.button, video.getScreen().getClientHeight()));
break;
case SDL_MOUSEMOTION:
mouseMotionEvent(context, createMouseMotionEvent(event.motion, video.getScreen().getClientHeight()));
break;
case SDL_MOUSEWHEEL:
mouseWheelEvent(context, MouseWheelEvent(0, 0, event.wheel.x, event.wheel.y));
break;
case SDL_QUIT:
requestClose = true;
break;
default:
break;
}
}
}
void Camera::onEvent(Event& e)
{
if (e.IsInCategory(EventCategory::EventCategoryKeyboard)) {
keyboardEvent(dynamic_cast<KeyEvent&>(e));
toString();
}
else if (e.IsInCategory(EventCategory::EventCategoryMouse)) {
mouseEvent(dynamic_cast<MouseMovedEvent&>(e));
}
else if (e.IsInCategory(EventCategory::EventCategoryMouseButton)) {
mouseButtonEvent(e);
}
}
bool Screen::mouseButtonCallbackEvent(int button, int action, int modifiers) {
mModifiers = modifiers;
mLastInteraction = glfwGetTime();
try {
if (mFocusPath.size() > 1) {
const Window *window =
dynamic_cast<Window *>(mFocusPath[mFocusPath.size() - 2]);
if (window && window->modal()) {
if (!window->contains(mMousePos))
return false;
}
}
if (action == GLFW_PRESS)
mMouseState |= 1 << button;
else
mMouseState &= ~(1 << button);
auto dropWidget = findWidget(mMousePos);
if (mDragActive && action == GLFW_RELEASE &&
dropWidget != mDragWidget)
mDragWidget->mouseButtonEvent(
mMousePos - mDragWidget->parent()->absolutePosition(), button,
false, mModifiers);
if (dropWidget != nullptr && dropWidget->cursor() != mCursor) {
mCursor = dropWidget->cursor();
glfwSetCursor(mGLFWWindow, mCursors[(int) mCursor]);
}
if (action == GLFW_PRESS && button == GLFW_MOUSE_BUTTON_1) {
mDragWidget = findWidget(mMousePos);
if (mDragWidget == this)
mDragWidget = nullptr;
mDragActive = mDragWidget != nullptr;
if (!mDragActive)
updateFocus(nullptr);
} else {
mDragActive = false;
mDragWidget = nullptr;
}
return mouseButtonEvent(mMousePos, button, action == GLFW_PRESS,
mModifiers);
} catch (const std::exception &e) {
std::cerr << "Caught exception in event handler: " << e.what() << std::endl;
abort();
}
return false;
}
