Function LoadLightSettings

BakingLab/BakingLab.cpp:106–164

Save lighting settings to a file

// Save lighting settings to a file
static void LoadLightSettings(HWND parentWindow)
{
    wchar currDirectory[MAX_PATH] = { 0 };
    GetCurrentDirectory(ArraySize_(currDirectory), currDirectory);

    wchar filePath[MAX_PATH] = { 0 };

    OPENFILENAME ofn;
    ZeroMemory(&ofn , sizeof(ofn));
    ofn.lStructSize = sizeof(ofn);
    ofn.hwndOwner = parentWindow;
    ofn.lpstrFile = filePath;
    ofn.nMaxFile = ArraySize_(filePath);
    ofn.lpstrFilter = L"All Files (*.*)\0*.*\0Light Settings (*.lts)\0*.lts\0";
    ofn.nFilterIndex = 2;
    ofn.lpstrFileTitle = nullptr;
    ofn.nMaxFileTitle = 0;
    ofn.lpstrInitialDir = nullptr;
    ofn.lpstrTitle = L"Open Light Settings File..";
    ofn.lpstrDefExt = L"lts";
    ofn.Flags = OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST;
    bool succeeded = GetOpenFileName(&ofn) != 0;
    SetCurrentDirectory(currDirectory);

    if(succeeded)
    {
        try
        {
            FileReadSerializer serializer(filePath);

            std::vector<SettingInfo> settingInfo;
            SerializeItem(serializer, settingInfo);

            uint8 dummyBuffer[1024] = { 0 };
            for(uint64 i = 0; i < settingInfo.size(); ++i)
            {
                const SettingInfo& info = settingInfo[i];
                Setting* setting = Settings.FindSetting(info.Name);
                if(setting == nullptr || setting->SerializedValueSize() != info.DataSize)
                {
                    // Skip the data for this setting, it's out-of-date
                    Assert_(info.DataSize <= sizeof(dummyBuffer));
                    if(info.DataSize > 0)
                        serializer.SerializeData(info.DataSize, dummyBuffer);
                    continue;
                }

                setting->SerializeValue(serializer);
            }
        }
        catch(Exception e)
        {
            std::wstring errorString = L"Error occured while loading light settings file: " + e.GetMessage();
            MessageBox(parentWindow, errorString.c_str(), L"Error", MB_OK | MB_ICONERROR);
        }
    }

    SetCurrentDirectory(currDirectory);