Method ChangeValue

src/settings.cpp:1611–1631

* Handle changing a value. This performs validation of the input value and * calls the appropriate callbacks, and saves it when the value is changed. * @param object The object the setting is in. * @param newval The new value for the setting. */

 * @param newval The new value for the setting.
 */
void IntSettingDesc::ChangeValue(const void *object, int32_t newval) const
{
	int32_t oldval = this->Read(object);
	this->MakeValueValid(newval);
	if (this->pre_check != nullptr && !this->pre_check(newval)) return;
	if (oldval == newval) return;

	this->Write(object, newval);
	if (this->post_callback != nullptr) this->post_callback(newval);

	if (this->flags.Test(SettingFlag::NoNetwork) || this->flags.Test(SettingFlag::Sandbox)) {
		_gamelog.StartAction(GLAT_SETTING);
		_gamelog.Setting(this->GetName(), oldval, newval);
		_gamelog.StopAction();
	}

	SetWindowClassesDirty(WC_GAME_OPTIONS);
	if (this->flags.Test(SettingFlag::Sandbox)) SetWindowClassesDirty(WC_CHEATS);

	if (_save_config) SaveToConfig();
}

/**
 * Given a name of setting, return a setting description from the table.