Initial commit of new FLTK based vncviewer. Most of the code comes from the

current Unix vncviewer.


git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4345 3789f03b-4d11-0410-bbf8-ca57d06f2519

1 files changed, 250 insertions, 0 deletions

diff --git a/vncviewer/vncviewer.cxx b/vncviewer/vncviewer.cxx
new file mode 100644
index 00000000..a6244cba
--- /dev/null
+++ b/vncviewer/vncviewer.cxx
@@ -0,0 +1,250 @@
+/* Copyright (C) 2002-2005 RealVNC Ltd.  All Rights Reserved.
+ * Copyright 2011 Pierre Ossman <ossman@cendio.se> for Cendio AB
+ * 
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * 
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ * USA.
+ */
+
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <signal.h>
+#include <locale.h>
+#include <sys/stat.h>
+
+#ifdef WIN32
+#include <direct.h>
+#define mkdir(path, mode) _mkdir(path)
+#endif
+
+#include <os/os.h>
+#include <rfb/Logger_stdio.h>
+#include <rfb/SecurityClient.h>
+#include <rfb/Security.h>
+#ifdef HAVE_GNUTLS
+#include <rfb/CSecurityTLS.h>
+#endif
+#include <rfb/LogWriter.h>
+#include <rfb/Timer.h>
+#include <network/TcpSocket.h>
+
+#include <FL/Fl.H>
+#include <FL/Fl_Widget.H>
+#include <FL/fl_ask.H>
+
+#include "i18n.h"
+#include "parameters.h"
+#include "CConn.h"
+#include "UserDialog.h"
+
+rfb::LogWriter vlog("main");
+
+using namespace network;
+using namespace rfb;
+using namespace std;
+
+char aboutText[1024];
+
+static bool exitMainloop = false;
+
+void exit_vncviewer()
+{
+  exitMainloop = true;
+}
+
+static void CleanupSignalHandler(int sig)
+{
+  // CleanupSignalHandler allows C++ object cleanup to happen because it calls
+  // exit() rather than the default which is to abort.
+  vlog.info("CleanupSignalHandler called");
+  exit(1);
+}
+
+static void init_fltk()
+{
+  // Basic text size (10pt @ 96 dpi => 13px)
+  FL_NORMAL_SIZE = 13;
+
+#ifndef __APPLE__
+  // Select a FLTK scheme and background color that looks somewhat
+  // close to modern Linux and Windows.
+  Fl::scheme("gtk+");
+  Fl::background(220, 220, 220);
+#else
+  // On Mac OS X there is another scheme that fits better though.
+  Fl::scheme("plastic");
+#endif
+
+  // This makes the "icon" in dialogs rounded, which fits better
+  // with the above schemes.
+  fl_message_icon()->box(FL_UP_BOX);
+
+  // Turn off the annoying behaviour where popups track the mouse.
+  fl_message_hotspot(false);
+
+  // Avoid empty titles for popups
+  fl_message_title_default(_("TigerVNC Viewer"));
+
+#ifdef WIN32
+  // Most "normal" Windows apps use this font for UI elements.
+  Fl::set_font(FL_HELVETICA, "Tahoma");
+#endif
+
+  // FLTK exposes these so that we can translate them.
+  fl_no     = _("No");
+  fl_yes    = _("Yes");
+  fl_ok     = _("OK");
+  fl_cancel = _("Cancel");
+  fl_close  = _("Close");
+}
+
+static void mkvnchomedir()
+{
+  // Create .vnc in the user's home directory if it doesn't already exist
+  char* homeDir = NULL;
+
+  if (getvnchomedir(&homeDir) == -1) {
+    vlog.error(_("Could not create VNC home directory: can't obtain home "
+                 "directory path."));
+  } else {
+    int result = mkdir(homeDir, 0755);
+    if (result == -1 && errno != EEXIST)
+      vlog.error(_("Could not create VNC home directory: %s."), strerror(errno));
+    delete [] homeDir;
+  }
+}
+
+static void usage(const char *programName)
+{
+  fprintf(stderr,
+          "\nusage: %s [parameters] [host:displayNum] [parameters]\n"
+          "       %s [parameters] -listen [port] [parameters]\n",
+          programName, programName);
+  fprintf(stderr,"\n"
+          "Parameters can be turned on with -<param> or off with -<param>=0\n"
+          "Parameters which take a value can be specified as "
+          "-<param> <value>\n"
+          "Other valid forms are <param>=<value> -<param>=<value> "
+          "--<param>=<value>\n"
+          "Parameter names are case-insensitive.  The parameters are:\n\n");
+  Configuration::listParams(79, 14);
+  exit(1);
+}
+
+int main(int argc, char** argv)
+{
+  char* vncServerName = 0;
+  UserDialog dlg;
+
+  const char englishAbout[] = N_("TigerVNC Viewer version %s\n"
+                                 "Copyright (C) 2002-2005 RealVNC Ltd.\n"
+                                 "Copyright (C) 2000-2006 TightVNC Group\n"
+                                 "Copyright (C) 2004-2009 Peter Astrand for Cendio AB\n"
+                                 "See http://www.tigervnc.org for information on TigerVNC.");
+
+  setlocale(LC_ALL, "");
+  bindtextdomain(PACKAGE_NAME, LOCALEDIR);
+  textdomain(PACKAGE_NAME);
+
+  rfb::SecurityClient::setDefaults();
+
+  // Write about text to console, still using normal locale codeset
+  snprintf(aboutText, sizeof(aboutText),
+           gettext(englishAbout), PACKAGE_VERSION);
+  fprintf(stderr,"\n%s\n", aboutText);
+
+  // Set gettext codeset to what our GUI toolkit uses. Since we are
+  // passing strings from strerror/gai_strerror to the GUI, these must
+  // be in GUI codeset as well.
+  bind_textdomain_codeset(PACKAGE_NAME, "UTF-8");
+  bind_textdomain_codeset("libc", "UTF-8");
+
+  // Re-create the aboutText for the GUI, now using GUI codeset
+  snprintf(aboutText, sizeof(aboutText),
+           gettext(englishAbout), PACKAGE_VERSION);
+
+  rfb::initStdIOLoggers();
+  rfb::LogWriter::setLogParams("*:stderr:30");
+
+#ifdef SIGHUP
+  signal(SIGHUP, CleanupSignalHandler);
+#endif
+  signal(SIGINT, CleanupSignalHandler);
+  signal(SIGTERM, CleanupSignalHandler);
+
+  init_fltk();
+
+  Configuration::enableViewerParams();
+
+  for (int i = 1; i < argc; i++) {
+    if (Configuration::setParam(argv[i]))
+      continue;
+
+    if (argv[i][0] == '-') {
+      if (i+1 < argc) {
+        if (Configuration::setParam(&argv[i][1], argv[i+1])) {
+          i++;
+          continue;
+        }
+      }
+      usage(argv[0]);
+    }
+
+    vncServerName = argv[i];
+  }
+
+  if (!::autoSelect.hasBeenSet()) {
+    // Default to AutoSelect=0 if -PreferredEncoding or -FullColor is used
+    ::autoSelect.setParam(!::preferredEncoding.hasBeenSet() &&
+                          !::fullColour.hasBeenSet() &&
+                          !::fullColourAlias.hasBeenSet());
+  }
+  if (!::fullColour.hasBeenSet() && !::fullColourAlias.hasBeenSet()) {
+    // Default to FullColor=0 if AutoSelect=0 && LowColorLevel is set
+    if (!::autoSelect && (::lowColourLevel.hasBeenSet() ||
+                          ::lowColourLevelAlias.hasBeenSet())) {
+      ::fullColour.setParam(false);
+    }
+  }
+  if (!::customCompressLevel.hasBeenSet()) {
+    // Default to CustomCompressLevel=1 if CompressLevel is used.
+    ::customCompressLevel.setParam(::compressLevel.hasBeenSet());
+  }
+
+  mkvnchomedir();
+
+  CSecurity::upg = &dlg;
+#ifdef HAVE_GNUTLS
+  CSecurityTLS::msg = &dlg;
+#endif
+
+  CConn cc(vncServerName);
+
+  while (!exitMainloop) {
+    int next_timer;
+
+    next_timer = Timer::checkTimeouts();
+    if (next_timer == 0)
+      next_timer = INT_MAX;
+
+    if (Fl::wait((double)next_timer / 1000.0) < 0.0) {
+      vlog.error(_("Internal FLTK error. Exiting."));
+      break;
+    }
+  }
+
+  return 0;
+}