bsnes/hiro/extension/message-dialog.cpp

#if defined(Hiro_MessageDialog)

MessageDialog::MessageDialog(const string& text) {
  state.text = text;
}

auto MessageDialog::error(const string_vector& buttons) -> string {
  state.buttons = buttons;
  state.icon = Icon::Prompt::Error;
  return _run();
}

auto MessageDialog::information(const string_vector& buttons) -> string {
  state.buttons = buttons;
  state.icon = Icon::Prompt::Information;
  return _run();
}

auto MessageDialog::question(const string_vector& buttons) -> string {
  state.buttons = buttons;
  state.icon = Icon::Prompt::Question;
  return _run();
}

auto MessageDialog::setParent(shared_pointer<mWindow> parent) -> type& {
  state.parent = parent;
  return *this;
}

auto MessageDialog::setText(const string& text) -> type& {
  state.text = text;
  return *this;
}

auto MessageDialog::setTitle(const string& title) -> type& {
  state.title = title;
  return *this;
}

auto MessageDialog::warning(const string_vector& buttons) -> string {
  state.buttons = buttons;
  state.icon = Icon::Prompt::Warning;
  return _run();
}

auto MessageDialog::_run() -> string {
  Window window;
    VerticalLayout layout{&window};
      HorizontalLayout messageLayout{&layout, Size{~0, 0}, 5};
        Canvas messageIcon{&messageLayout, Size{16, 16}, 5};
        Label messageText{&messageLayout, Size{~0, 0}};
      HorizontalLayout controlLayout{&layout, Size{~0, 0}};
        Widget controlSpacer{&controlLayout, Size{~0, 0}};

  layout.setMargin(5);
  messageIcon.setIcon(state.icon);
  messageText.setText(state.text);
  for(auto n : range(state.buttons)) {
    Button button{&controlLayout, Size{80, 0}, 5};
    button.onActivate([&, n] { state.response = state.buttons[n]; window.setModal(false); });
    button.setText(state.buttons[n]);
    button.setFocused();  //the last button will have effective focus
  }

  signed widthMessage = 5 + 16 + 5 + Font().size(state.text).width() + 5;
  signed widthButtons = 5 + state.buttons.size() * 85;
  signed width = max(320, widthMessage, widthButtons);

  window.onClose([&] { window.setModal(false); });
  window.setTitle(state.title);
  window.setResizable(false);
  window.setSize({width, layout.minimumSize().height()});
  window.setCentered(state.parent);
  window.setVisible();
  window.setModal();
  window.setVisible(false);

  return state.response;
}

#endif