Method HandleEvent

Source/Engine/Platform/SDL/SDLInput.cpp:524–696

}

bool SDLInput::HandleEvent(SDLWindow* window, SDL_Event& event)
{
    switch (event.type)
    {
    case SDL_EVENT_MOUSE_MOTION:
    {
        if (Input::Mouse->IsRelative())
        {
            const Float2 mouseDelta(event.motion.xrel, event.motion.yrel);
            Input::Mouse->OnMouseMoveRelative(mouseDelta, window);
        }
        else
        {
            const Float2 mousePos = window->ClientToScreen({ event.motion.x, event.motion.y });
            Input::Mouse->OnMouseMove(mousePos, window);
        }
        return true;
    }
    case SDL_EVENT_WINDOW_MOUSE_LEAVE:
    {
        Input::Mouse->OnMouseLeave(window);
        return true;
    }
    case SDL_EVENT_MOUSE_BUTTON_DOWN:
    case SDL_EVENT_MOUSE_BUTTON_UP:
    {
        Float2 mousePos = window->ClientToScreen({ event.button.x, event.button.y });

        // In case of activating the window from non-focused state, we might not have received the motion event yet
        if (!Input::Mouse->IsRelative() && event.button.down)
            Input::Mouse->OnMouseMove(mousePos, window);

        MouseButton button = MouseButton::None;
        if (event.button.button == SDL_BUTTON_LEFT)
            button = MouseButton::Left;
        else if (event.button.button == SDL_BUTTON_RIGHT)
            button = MouseButton::Right;
        else if (event.button.button == SDL_BUTTON_MIDDLE)
            button = MouseButton::Middle;
        else if (event.button.button == SDL_BUTTON_X1)
            button = MouseButton::Extended1;
        else if (event.button.button == SDL_BUTTON_X2)
            button = MouseButton::Extended2;

        if (Input::Mouse->IsRelative())
        {
            // Use the previous visible mouse position here, the event or global
            // mouse position would cause input to trigger in other editor windows.
            mousePos = SDLInputImpl::Mouse->GetOldMousePosition();
        }

        if (!event.button.down)
            Input::Mouse->OnMouseUp(mousePos, button, window);
        // Prevent sending multiple mouse down event when double-clicking UI elements
        else if (event.button.clicks % 2 == 1)
            Input::Mouse->OnMouseDown(mousePos, button, window);
        else
            Input::Mouse->OnMouseDoubleClick(mousePos, button, window);