Implement about dialog.

git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4395 3789f03b-4d11-0410-bbf8-ca57d06f2519

vncviewer/Viewport.cxx

@@ -51,13 +51,14 @@ extern "C" const char *osx_event_string(void);
 #endif
 
 extern void exit_vncviewer();
+extern void about_vncviewer();
 
 static rfb::LogWriter vlog("Viewport");
 
 // Menu constants
 
 enum { ID_EXIT, ID_CTRL, ID_ALT, ID_MENUKEY, ID_CTRLALTDEL,
-       ID_REFRESH, ID_DISMISS };
+       ID_REFRESH, ID_ABOUT, ID_DISMISS };
 
 Viewport::Viewport(int w, int h, const rfb::PixelFormat& serverPF, CConn* cc_)
   : Fl_Widget(0, 0, w, h), cc(cc_), frameBuffer(NULL), pixelTrans(NULL),
@@ -523,6 +524,8 @@ void Viewport::initContextMenu()
 
   contextMenu->add(_("Refresh screen"), 0, NULL, (void*)ID_REFRESH, FL_MENU_DIVIDER);
 
+  contextMenu->add(_("About TigerVNC viewer..."), 0, NULL, (void*)ID_ABOUT, FL_MENU_DIVIDER);
+
   contextMenu->add(_("Dismiss menu"), 0, NULL, (void*)ID_DISMISS, 0);
 }
 
@@ -569,6 +572,9 @@ void Viewport::popupContextMenu()
   case ID_REFRESH:
     cc->refreshFramebuffer();
     break;
+  case ID_ABOUT:
+    about_vncviewer();
+    break;
   case ID_DISMISS:
     // Don't need to do anything
     break;

vncviewer/vncviewer.cxx

@@ -44,6 +44,7 @@
 #include <FL/Fl.H>
 #include <FL/Fl_Widget.H>
 #include <FL/fl_ask.H>
+#include <FL/x.H>
 
 #include "i18n.h"
 #include "parameters.h"
@@ -56,7 +57,7 @@ using namespace network;
 using namespace rfb;
 using namespace std;
 
-char aboutText[1024];
+static char aboutText[1024];
 
 static bool exitMainloop = false;
 
@@ -65,6 +66,17 @@ void exit_vncviewer()
   exitMainloop = true;
 }
 
+void about_vncviewer()
+{
+  fl_message_title(_("About TigerVNC Viewer"));
+  fl_message(aboutText);
+}
+
+static void about_callback(Fl_Widget *widget, void *data)
+{
+  about_vncviewer();
+}
+
 static void CleanupSignalHandler(int sig)
 {
   // CleanupSignalHandler allows C++ object cleanup to happen because it calls
@@ -109,6 +121,10 @@ static void init_fltk()
   fl_ok     = _("OK");
   fl_cancel = _("Cancel");
   fl_close  = _("Close");
+
+#ifdef __APPLE__
+  fl_mac_set_about(about_callback, NULL);
+#endif
 }
 
 static void mkvnchomedir()