Add configuration name at command line via -c or --config

sets up framework for more command line options as well.

src/AppConfig.cpp

@@ -114,7 +114,7 @@ void DeviceConfig::load(DataNode *node) {
     busy_lock.unlock();
 }
 
-AppConfig::AppConfig() {
+AppConfig::AppConfig() : configName("") {
     winX.store(0);
     winY.store(0);
     winW.store(0);
@@ -195,6 +195,27 @@ long long AppConfig::getSnap() {
     return snap.load();
 }
 
+void AppConfig::setConfigName(std::string configName) {
+    this->configName = configName;
+}
+
+std::string AppConfig::getConfigFileName() {
+    std::string cfgFileDir = getConfigDir();
+    
+    wxFileName cfgFile;
+    if (configName.length()) {
+        std::string tempFn("config-");
+        tempFn.append(configName);
+        tempFn.append(".xml");
+        cfgFile = wxFileName(cfgFileDir, tempFn);
+    } else {
+        cfgFile = wxFileName(cfgFileDir, "config.xml");
+    }
+    
+    std::string cfgFileName = cfgFile.GetFullPath(wxPATH_NATIVE).ToStdString();
+    
+    return cfgFileName;
+}
 
 bool AppConfig::save() {
     DataTree cfg;
@@ -221,13 +242,9 @@ bool AppConfig::save() {
         DataNode *device_node = devices_node->newChild("device");
         device_config_i->second->save(device_node);
     }
-
     
-    std::string cfgFileDir = getConfigDir();
-
-    wxFileName cfgFile = wxFileName(cfgFileDir, "config.xml");
-    std::string cfgFileName = cfgFile.GetFullPath(wxPATH_NATIVE).ToStdString();
-
+    std::string cfgFileName = getConfigFileName();
+    
     if (!cfg.SaveToFileXML(cfgFileName)) {
         std::cout << "Error saving :: configuration file '" << cfgFileName << "' is not writable!" << std::endl;
         return false;
@@ -240,8 +257,8 @@ bool AppConfig::load() {
     DataTree cfg;
     std::string cfgFileDir = getConfigDir();
 
-    wxFileName cfgFile = wxFileName(cfgFileDir, "config.xml");
-    std::string cfgFileName = cfgFile.GetFullPath(wxPATH_NATIVE).ToStdString();
+    std::string cfgFileName = getConfigFileName();
+    wxFileName cfgFile = wxFileName(cfgFileName);
 
     if (!cfgFile.Exists()) {
         return true;

src/AppConfig.h

@@ -59,11 +59,14 @@ public:
     void setSnap(long long snapVal);
     long long getSnap();
 
+    void setConfigName(std::string configName);
+    std::string getConfigFileName();
     bool save();
     bool load();
     bool reset();
 
 private:
+    std::string configName;
     std::map<std::string, DeviceConfig *> deviceConfig;
     std::atomic_int winX,winY,winW,winH;
     std::atomic_bool winMax;

src/CubicSDR.cpp

@@ -40,8 +40,6 @@ bool CubicSDR::OnInit() {
 
     wxApp::SetAppName("CubicSDR");
 
-    config.load();
-
     frequency = DEFAULT_FREQ;
     offset = 0;
     ppm = 0;
@@ -171,6 +169,24 @@ PrimaryGLContext& CubicSDR::GetContext(wxGLCanvas *canvas) {
     return *glContext;
 }
 
+void CubicSDR::OnInitCmdLine(wxCmdLineParser& parser) {
+    parser.SetDesc (commandLineInfo);
+    parser.SetSwitchChars (wxT("-"));
+}
+
+bool CubicSDR::OnCmdLineParsed(wxCmdLineParser& parser) {
+    wxString *confName = new wxString;
+    if (parser.Found("c",confName)) {
+        if (confName) {
+            config.setConfigName(confName->ToStdString());
+        }
+    }
+    
+    config.load();
+
+    return true;
+}
+
 void CubicSDR::setFrequency(long long freq) {
     if (freq < sampleRate / 2) {
         freq = sampleRate / 2;

src/CubicSDR.h

@@ -17,6 +17,8 @@
 #include "AppConfig.h"
 #include "AppFrame.h"
 
+#include <wx/cmdline.h>
+
 #define NUM_DEMODULATORS 1
 
 class CubicSDR: public wxApp {
@@ -31,6 +33,9 @@ public:
     virtual bool OnInit();
     virtual int OnExit();
 
+    virtual void OnInitCmdLine(wxCmdLineParser& parser);
+    virtual bool OnCmdLineParsed(wxCmdLineParser& parser);
+
     void setFrequency(long long freq);
     long long getFrequency();
 
@@ -94,4 +99,11 @@ private:
     std::thread *t_PostSDR;
 };
 
+static const wxCmdLineEntryDesc commandLineInfo [] =
+{
+    { wxCMD_LINE_SWITCH, "h", "help", "Command line parameter help", wxCMD_LINE_VAL_NONE, wxCMD_LINE_OPTION_HELP },
+    { wxCMD_LINE_OPTION, "c", "config", "Specify a named configuration to use, i.e. '-c ham'" },
+    { wxCMD_LINE_NONE }
+};
+
 DECLARE_APP(CubicSDR)