Add --xml arg to plug into a GUI

Applications/ctkCommandLineModuleExplorer/ctkCommandLineModuleExplorerMain.cpp

@@ -40,10 +40,6 @@
 
 int main(int argc, char** argv)
 {
-  QApplication myApp(argc, argv);
-  myApp.setOrganizationName("CommonTK");
-  myApp.setApplicationName("CommandLineModuleExplorer");
-
   ctkCommandLineParser cmdLineParser;
   cmdLineParser.setArgumentPrefix("--", "-");
   cmdLineParser.setStrictModeEnabled(true);
@@ -53,6 +49,7 @@ int main(int argc, char** argv)
 
   cmdLineParser.addArgument("validate-module", "", QVariant::String, "Path to a CLI module");
   cmdLineParser.addArgument("validate-xml", "", QVariant::String, "Path to a CLI XML description.");
+  cmdLineParser.addArgument("xml", "", QVariant::Bool, "Generate XML for this application");
   cmdLineParser.addArgument("verbose", "v", QVariant::Bool, "Be verbose.");
   cmdLineParser.addArgument("help", "h", QVariant::Bool, "Print this help text.");
 
@@ -139,10 +136,41 @@ int main(int argc, char** argv)
 
     return EXIT_SUCCESS;
   }
-
+  else if (args.contains("xml"))
+  {
+    out << "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n";
+    out << "<executable>\n";
+    out << "  <category>Utilities</category>\n";
+    out << "  <title>ctkCommandLineModuleExplorer</title>\n";
+    out << "  <description><![CDATA[Used to check the validity of CLI XML descriptors.]]></description>\n";
+    out << "  <version>0.0.1</version>\n";
+    out << "  <documentation-url>http://www.commontk.org</documentation-url>\n";
+    out << "  <license>Apache 2</license>\n";
+    out << "  <contributor>Various</contributor>\n";
+    out << "  <acknowledgements><![CDATA[]]></acknowledgements>\n";
+    out << "  <parameters>\n";
+    out << "    <label>IO</label>\n";
+    out << "    <description><![CDATA[Input/output parameters]]></description>\n";
+    out << "    <string>\n";
+    out << "      <name>inputText</name>\n";
+    out << "      <flag>i</flag>\n";
+    out << "      <longflag>inputText</longflag>\n";
+    out << "      <description>Input text containing XML</description>\n";
+    out << "      <label>Input</label>\n";
+    out << "      <channel>input</channel>\n";
+    out << "    </string>\n";
+    out << "  </parameters>\n";
+    out << "</executable>\n";
+    out.flush();
+    return EXIT_SUCCESS;
+  }
 
   //ctkCmdLineModuleDescription* descr = ctkCmdLineModuleDescription::parse(&input);
 
+  QApplication myApp(argc, argv);
+  myApp.setOrganizationName("CommonTK");
+  myApp.setApplicationName("CommandLineModuleExplorer");
+
   ctkCLModuleExplorerMainWindow mainWindow;
 
   if (args.contains("module"))