From c22c8b9ae2cb6761c485b30ce98dd5cdf9b86132 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jan=20M=C3=B6bius?= <moebius@cs.rwth-aachen.de>
Date: Wed, 16 Sep 2009 11:40:38 +0000
Subject: [PATCH] Added function to get a unique viewer id

git-svn-id: http://www.openflipper.org/svnrepo/OpenFlipper/branches/Free@7092 383ad7c9-94d9-4d36-a494-682f7c89f535
---
 BasePlugin/PluginFunctions.cc | 13 +++++++++++++
 BasePlugin/PluginFunctions.hh |  9 +++++++++
 2 files changed, 22 insertions(+)

diff --git a/BasePlugin/PluginFunctions.cc b/BasePlugin/PluginFunctions.cc
index 9b44aa49..0e9d1387 100644
--- a/BasePlugin/PluginFunctions.cc
+++ b/BasePlugin/PluginFunctions.cc
@@ -111,6 +111,10 @@ static ViewObjectMarker* defaultMarker_ = 0;
  */
 static QGLWidget* shareGLWidget_ = 0;
 
+/** This is a unique id for the running OpenFlipper instance. Use it to identify yourself on the network
+*/
+static int viewerId_ = 0;
+
 void setDataRoot( BaseObject* _root ) {
    objectRoot_ = _root;
 }
@@ -119,9 +123,18 @@ int viewers( ) {
   return examiner_widgets_.size();
 }
 
+int viewerId() {
+  return viewerId_;
+}
+
 void setViewers( std::vector< glViewer* > _viewerWidgets ) {
    PluginFunctions::examiner_widgets_ = _viewerWidgets;
    PluginFunctions::examiner_widget_ =  examiner_widgets_[0];
+
+   // Generate a (hopefully) unique viewer id
+   QTime time = QTime::currentTime();
+   qsrand( time.hour() * 10 + time.minute() * 100 + time.second() * 1000 + time.msec() * 10000  );
+   viewerId_ = qrand();
 }
 
 void setViewerProperties( std::vector< Viewer::ViewerProperties* > _viewerProperties ) {
diff --git a/BasePlugin/PluginFunctions.hh b/BasePlugin/PluginFunctions.hh
index f3d5c353..16cb78bc 100644
--- a/BasePlugin/PluginFunctions.hh
+++ b/BasePlugin/PluginFunctions.hh
@@ -556,6 +556,15 @@ BaseObjectData* baseObjectData( BaseObject* _object );
 
 /** @} */
 
+
+/** \brief Return unique viewer id
+ *
+ * This function returns a id which is unique to all running Openflippers on that machine.
+ * This id changes when you restart the viewer!
+ */
+DLLEXPORT
+int viewerId();
+
 /// Get the root of the object structure
 DLLEXPORT
 BaseObject*& objectRoot();
-- 
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