EnumSetting.cc

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#include "EnumSetting.hh"
#include "TclObject.hh"
#include "Completer.hh"
#include "CommandException.hh"
#include "stringsp.hh"
#include "unreachable.hh"

namespace openmsx {

int EnumSettingPolicyBase::fromStringBase(const std::string& str) const
{
        // An alternative we used in the past is to use StringOp::caseless
        // as the map comparator functor. This requires to #include StringOp.hh
        // in the header file. Because this header is included in many other
        // files, we prefer not to do that.
        // These maps are usually very small, so there is no disadvantage on
        // using a O(n) search here (instead of O(log n)).
        for (auto& p : baseMap) {
                if (strcasecmp(str.c_str(), p.first.c_str()) == 0) {
                        return p.second;
                }
        }
        throw CommandException("not a valid value: " + str);
}

std::string EnumSettingPolicyBase::toStringBase(int value) const
{
        for (auto& p : baseMap) {
                if (p.second == value) {
                        return p.first;
                }
        }
        UNREACHABLE; return "";
}

std::vector<std::string> EnumSettingPolicyBase::getPossibleValues() const
{
        std::vector<std::string> result;
        for (auto& p : baseMap) {
                try {
                        int value = p.second;
                        checkSetValueBase(value);
                        result.push_back(p.first);
                } catch (MSXException&) {
                        // ignore
                }
        }
        return result;
}

void EnumSettingPolicyBase::tabCompletionBase(std::vector<std::string>& tokens) const
{
        Completer::completeString(tokens, getPossibleValues(),
                                  false); // case insensitive
}

void EnumSettingPolicyBase::additionalInfoBase(TclObject& result) const
{
        TclObject valueList(result.getInterpreter());
        valueList.addListElements(this->getPossibleValues());
        result.addListElement(valueList);
}

} // namespace openmsx