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;
}
}
}
int Application::exec()
{
bool done = false;
while (!done)
{
SDL_Event e;
if (SDL_WaitEvent(&e))
{
switch (e.type)
{
case SDL_WINDOWEVENT:
{
Widget *w = widgetByWindowId(e.window.windowID);
switch (e.window.event)
{
case SDL_WINDOWEVENT_SHOWN:
std::cout << "Window " << e.window.windowID << " shown" << std::endl;
break;
case SDL_WINDOWEVENT_HIDDEN:
std::cout << "Window " << e.window.windowID << " hidden" << std::endl;
break;
case SDL_WINDOWEVENT_EXPOSED:
{
needUpdateWithoutRedraw_ = w;
break;
}
case SDL_WINDOWEVENT_MOVED:
break;
case SDL_WINDOWEVENT_RESIZED:
{
w->resize(e.window.data1, e.window.data2);
#if __APPLE__==1
SDL_RenderPresent(w->renderer_); // hack for MacOS X
#endif
break;
}
case SDL_WINDOWEVENT_MINIMIZED:
std::cout << "Window " << e.window.windowID << " minimized" << std::endl;
break;
case SDL_WINDOWEVENT_MAXIMIZED:
std::cout << "Window " << e.window.windowID << " maximized" << std::endl;
break;
case SDL_WINDOWEVENT_RESTORED:
std::cout << "Window " << e.window.windowID << " restored" << std::endl;
break;
case SDL_WINDOWEVENT_ENTER:
std::cout << "Mouse entered window " << e.window.windowID << std::endl;
break;
case SDL_WINDOWEVENT_LEAVE:
std::cout << "Mouse left window " << e.window.windowID << std::endl;
break;
case SDL_WINDOWEVENT_FOCUS_GAINED:
std::cout << "Window " << e.window.windowID << " gained keyboard focus" << std::endl;
break;
case SDL_WINDOWEVENT_FOCUS_LOST:
std::cout << "Window " << e.window.windowID << " lost keyboard focus" << std::endl;
break;
case SDL_WINDOWEVENT_CLOSE:
std::cout << "Window " << e.window.windowID << " closed" << std::endl;
break;
default:
std::cout << "Window " << e.window.windowID << " got unknown event " << static_cast<int>(e.window.event) << std::endl;
break;
}
break;
}
case SDL_KEYDOWN:
{
KeyEvent ke { static_cast<KeyEvent::Key>(e.key.keysym.sym), SDL_GetModState(), static_cast<bool>(e.key.repeat) };
auto w = focusWidget();
if (!w)
w = widgetByWindowId(e.key.windowID);
else if (w->ancestor() != widgetByWindowId(e.key.windowID))
{
std::cerr << "Unknown windowID " << e.key.windowID << std::endl;
break;
}
while (w)
{
if (w->keyPressEvent(ke))
break;
w = w->parent();
}
break;
}
case SDL_KEYUP:
{
KeyEvent ke { static_cast<KeyEvent::Key>(e.key.keysym.sym), SDL_GetModState(), static_cast<bool>(e.key.repeat) };
auto w = focusWidget();
if (!w)
w = widgetByWindowId(e.key.windowID);
else if (w->ancestor() != widgetByWindowId(e.key.windowID))
{
std::cerr << "Unknown windowID " << e.key.windowID << std::endl;
break;
}
while (w)
{
if (w->keyReleaseEvent(ke))
break;
w = w->parent();
}
break;
}
case SDL_TEXTINPUT:
{
TextInputEvent tie { toUtf16(e.text.text) };
auto w = focusWidget();
if (!w)
w = widgetByWindowId(e.key.windowID);
else if (w->ancestor() != widgetByWindowId(e.key.windowID))
{
std::cerr << "Unknown windowID " << e.key.windowID << std::endl;
break;
}
while (w)
{
if (w->textInputEvent(tie))
break;
w = w->parent();
}
break;
}
case SDL_QUIT:
done = true;
break;
}
}
const auto isEmpty = (SDL_PeepEvents(&e, 1, SDL_PEEKEVENT, SDL_FIRSTEVENT, SDL_LASTEVENT) == 0);
if (isEmpty || SDL_GetTicks() > lastUpdate_ + 1000 / 60)
{
auto x = SDL_GetTicks();
for (auto w: widgetList_)
if (w->needRepaint())
{
PaintEvent e;
w->internalPaint(e);
}
if (needUpdateWithoutRedraw_)
{
needUpdateWithoutRedraw_->updateWithoutRedraw();
needUpdateWithoutRedraw_ = nullptr;
}
lastUpdate_ = SDL_GetTicks();
std::cout << "Update time: " << lastUpdate_ - x << " " <<
(lastUpdate_ - x > 0 ? 1000 / (lastUpdate_ - x) : 999)<< "fps" << std::endl;
}
for (auto obj: deletingObjects_)
delete obj;
deletingObjects_.clear();
}
return 0;
}
void Widget::handleTextInput(TextInputEvent &event)
{
textInputEvent(event);
}