修改：

记录上次设置的帧率和曝光时间，打开时，将上次的帧率和曝光时间设置为当前参数；

Source_Files/configfile.cpp

@@ -468,3 +468,172 @@ bool Configfile::updateConfigFile()
 
     return true;
 }
+
+ParameterConfigfile::ParameterConfigfile()
+{
+
+}
+
+void ParameterConfigfile::setConfigfilePath(string configfilePath)
+{
+    m_configfilePath = configfilePath;
+}
+
+bool ParameterConfigfile::isConfigfileExist()
+{
+    QFileInfo info(QString::fromStdString(m_configfilePath));
+
+    return info.exists();
+}
+
+bool ParameterConfigfile::parseConfigfile()
+{
+    // Read the file. If there is an error, report it and exit.
+    try
+    {
+        cfg.readFile(m_configfilePath);
+
+        return true;
+    }
+    catch(const FileIOException &fioex)
+    {
+        std::cerr << "I/O error while reading file." << std::endl;
+        return false;
+    }
+    catch(const ParseException &pex)
+    {
+        std::cerr << "Parse error at " << pex.getFile() << ":" << pex.getLine()
+                  << " - " << pex.getError() << std::endl;
+        return false;
+    }
+}
+
+bool ParameterConfigfile::createConfigFile()
+{
+    using namespace std;
+    using namespace libconfig;
+
+    Config cfg;
+
+    Setting &root = cfg.getRoot();
+
+    // Add some settings to the configuration.
+//    Setting &SN = root.add("SN", Setting::TypeString) = "0098";
+//    Setting &spatialBin = root.add("spatialBin", Setting::TypeInt) = 2;
+//    Setting &SpectralBin = root.add("spectralBin", Setting::TypeInt) = 2;
+
+    Setting &ximeaParam = root.add("ximeaParam", Setting::TypeGroup);
+    ximeaParam.add("frameRate", Setting::TypeInt) = 100;
+    ximeaParam.add("exposeTime", Setting::TypeFloat) = 10.0;
+
+
+    // Write out the new configuration.
+    try
+    {
+        QList<QString> fileInfo = getFileInfo(QString::fromStdString(m_configfilePath));
+        bool ret = createDir(fileInfo[0]);
+
+        cfg.writeFile(m_configfilePath.c_str());
+        cerr << "New configuration successfully written to: " << m_configfilePath.c_str() << endl;
+
+    }
+    catch(const FileIOException &fioex)
+    {
+        cerr << "I/O error while writing configuration file: " << m_configfilePath.c_str() << endl;
+        return true;
+    }
+
+    return true;
+}
+
+bool ParameterConfigfile::getFrameRate(int &frameRate)
+{
+    const Setting& root = cfg.getRoot();
+    try
+    {
+        const Setting &ximeaParam = root["ximeaParam"];
+        frameRate = ximeaParam.lookup("frameRate");
+
+        std::cout << "----------------"<< frameRate<<std::endl;
+        return true;
+    }
+    catch(const SettingNotFoundException &nfex)
+    {
+        cerr << "No 'frameRate' setting in configuration file." << endl;
+        return false;
+    }
+}
+
+bool ParameterConfigfile::setFrameRate(int frameRate)
+{
+    const Setting& root = cfg.getRoot();
+    try
+    {
+        Setting &frameRate2 = root["ximeaParam"]["frameRate"];
+        frameRate2 = frameRate;
+
+        writeConfig2File();
+
+        return true;
+    }
+    catch(const SettingNotFoundException &nfex)
+    {
+        cerr << "No 'frameRate' setting in configuration file." << endl;
+        return false;
+    }
+}
+
+bool ParameterConfigfile::getExposeTime(float &exposeTime)
+{
+    const Setting& root = cfg.getRoot();
+    try
+    {
+        const Setting &ximeaParam = root["ximeaParam"];
+        exposeTime = ximeaParam.lookup("exposeTime");
+
+        std::cout << "----------------"<< exposeTime<<std::endl;
+        return true;
+    }
+    catch(const SettingNotFoundException &nfex)
+    {
+        cerr << "No 'exposeTime' setting in configuration file." << endl;
+        return false;
+    }
+}
+
+bool ParameterConfigfile::setExposeTime(float exposeTime)
+{
+    const Setting& root = cfg.getRoot();
+    try
+    {
+        Setting &frameRate2 = root["ximeaParam"]["exposeTime"];
+        frameRate2 = exposeTime;
+
+        writeConfig2File();
+
+        return true;
+    }
+    catch(const SettingNotFoundException &nfex)
+    {
+        cerr << "No 'exposeTime' setting in configuration file." << endl;
+        return false;
+    }
+}
+
+bool ParameterConfigfile::writeConfig2File()
+{
+    try
+    {
+        QList<QString> fileInfo = getFileInfo(QString::fromStdString(m_configfilePath));
+        bool ret = createDir(fileInfo[0]);
+
+        cfg.writeFile(m_configfilePath.c_str());
+        cerr << "New configuration successfully written to: " << m_configfilePath.c_str() << endl;
+    }
+    catch(const FileIOException &fioex)
+    {
+        cerr << "I/O error while writing configuration file: " << m_configfilePath.c_str() << endl;
+        return false;
+    }
+    return true;
+}