~azzar1/unity/lp-1165097

ShutdownView: first draft implementation

added added

removed removed

close_button_->SetSize(texture->GetWidth(), texture->GetHeight());

close_button_->SetBaseXY(padding, padding);

close_button_->mouse_click.connect([this](int, int, unsigned long, unsigned long)

{

close_button_->SetParentObject(this);

close_button_->mouse_down.connect([this](int, int, unsigned long, unsigned long) { QueueDraw(); });

close_button_->mouse_up.connect([this](int, int, unsigned long, unsigned long) { QueueDraw(); });

close_button_->mouse_click.connect([this](int, int, unsigned long, unsigned long) {

request_close.emit();

QueueDraw();

});

}