add --help

diff --git a/src/main.cpp b/src/main.cpp
index 1b527f5..0a1c6ab 100644 (file)
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -16,28 +16,47 @@
     with this program; if not, write to the Free Software Foundation, Inc.,
     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
+#include "mainwindow.h"
+
 #include <QApplication>
 #include <QString>
 
-#include "mainwindow.h"
+#include <iostream>
+
+
+const QString APPNAME("Presence VNC");
 
 int main(int argc, char *argv[])
 {
-       QCoreApplication::setOrganizationName("Presence VNC");
-       QCoreApplication::setApplicationName("Presence VNC");
+       QCoreApplication::setOrganizationName(APPNAME);
+       QCoreApplication::setApplicationName(APPNAME);
 
        QApplication app(argc, argv);
 
-       QString url = QString();
+       QString url("");
        int quality = 2;
+
        QStringList arguments = QCoreApplication::arguments();
-       if (arguments.count() > 1) {
-               //Example: vnc://:password@server:1\n"
-               //"Optionally, you can define the quality as second argument (1-3, where 1 is the best). Default is 2.");
+       for(int i = 1; i < arguments.count(); i++) {
+               if(arguments.at(i) == "--help") {
+                       std::cout << "Usage: " << qPrintable(arguments.at(0)) << " [options] [URL [quality]]\n"
+
+                               << "\nOptions:\n"
+                               << " --help\t This text\n"
+
+                               << "\nURLs:\n"
+                               << " vnc://:password@server:display\n"
+                               << " Password and display can be omitted, e.g. vnc://server is a valid URL.\n"
+                               << " Optionally, you can define the quality as a second argument (1-3, where 1 is the best). Default is 2.\n";
 
-               url = arguments.at(1);
-               if(arguments.count() > 2)
-                       quality = arguments.at(2).toInt();
+                       return 0;
+               } else { //not a valid command line option, should be the url
+                       url = arguments.at(i);
+                       if(arguments.count() > i+1) { //having a --quality option would make more sense.
+                                       quality = arguments.at(i+1).toInt();
+                                       i++;
+                       }
+               }
        }
 
        MainWindow main(url, quality);