int app::exec(bool aQuitWhenLastWindowClosed)
{
try
{
surface_manager().layout_surfaces();
surface_manager().invalidate_surfaces();
iQuitWhenLastWindowClosed = aQuitWhenLastWindowClosed;
while (!iQuitResultCode.is_initialized())
process_events(*iContext);
return *iQuitResultCode;
}
catch (std::exception& e)
{
halt();
std::cerr << "neogfx::app::exec: terminating with exception: " << e.what() << std::endl;
iSurfaceManager->display_error_message(iName.empty() ? "Abnormal Program Termination" : "Abnormal Program Termination - " + iName, std::string("neogfx::app::exec: terminating with exception: ") + e.what());
std::exit(EXIT_FAILURE);
}
catch (...)
{
halt();
std::cerr << "neogfx::app::exec: terminating with unknown exception" << std::endl;
iSurfaceManager->display_error_message(iName.empty() ? "Abnormal Program Termination" : "Abnormal Program Termination - " + iName, "neogfx::app::exec: terminating with unknown exception");
std::exit(EXIT_FAILURE);
}
}
void sdl_window::do_activate_default_context() const
{
for (std::size_t i = 0; i != surface_manager().surface_count(); ++i)
if (!surface_manager().surface(i).destroyed())
{
surface_manager().surface(i).native_surface().activate_context();
context_activation_stack().pop_back();
break;
}
}
i_style& app::change_style(const std::string& aStyleName)
{
style_list::iterator existingStyle = iStyles.find(aStyleName);
if (existingStyle == iStyles.end())
throw style_not_found();
if (iCurrentStyle != existingStyle)
{
iCurrentStyle = existingStyle;
current_style_changed.trigger();
surface_manager().layout_surfaces();
surface_manager().invalidate_surfaces();
}
return iCurrentStyle->second;
}
bool app::do_process_events()
{
bool lastWindowClosed = false;
bool didSome = surface_manager().process_events(lastWindowClosed);
if (lastWindowClosed && iQuitWhenLastWindowClosed)
{
if (!iQuitResultCode.is_initialized())
iQuitResultCode = 0;
}
return didSome;
}
i_style& app::register_style(const i_style& aStyle)
{
if (iStyles.find(aStyle.name()) != iStyles.end())
throw style_exists();
style_list::iterator newStyle = iStyles.insert(std::make_pair(aStyle.name(), style(aStyle.name(), aStyle))).first;
if (iCurrentStyle == iStyles.end())
{
iCurrentStyle = newStyle;
surface_manager().invalidate_surfaces();
}
return newStyle->second;
}
