From fff9cd7d38e64bddb4e4c89e66d0ee804911d10e Mon Sep 17 00:00:00 2001
From: Ralf Habacker <ralf.habacker@freenet.de>
Date: Fri, 17 Jun 2016 17:45:06 +0200
Subject: [PATCH] Add osgobjectcache example.

---
 examples/CMakeLists.txt                    |  1 +
 examples/osgobjectcache/CMakeLists.txt     |  7 +++
 examples/osgobjectcache/osgobjectcache.cpp | 65 ++++++++++++++++++++++
 3 files changed, 73 insertions(+)
 create mode 100644 examples/osgobjectcache/CMakeLists.txt
 create mode 100644 examples/osgobjectcache/osgobjectcache.cpp

diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
index 44ca77f60..39dcadabf 100644
--- a/examples/CMakeLists.txt
+++ b/examples/CMakeLists.txt
@@ -75,6 +75,7 @@ IF(DYNAMIC_OPENSCENEGRAPH)
     ADD_SUBDIRECTORY(osgmultitexturecontrol)
     ADD_SUBDIRECTORY(osgmultitouch)
     ADD_SUBDIRECTORY(osgmultiviewpaging)
+    ADD_SUBDIRECTORY(osgobjectcache)
     ADD_SUBDIRECTORY(osgoccluder)
     ADD_SUBDIRECTORY(osgocclusionquery)
     ADD_SUBDIRECTORY(osgoit)
diff --git a/examples/osgobjectcache/CMakeLists.txt b/examples/osgobjectcache/CMakeLists.txt
new file mode 100644
index 000000000..f3eed1314
--- /dev/null
+++ b/examples/osgobjectcache/CMakeLists.txt
@@ -0,0 +1,7 @@
+#this file is automatically generated 
+
+
+SET(TARGET_SRC osgobjectcache.cpp )
+SET(TARGET_EXTERNAL_LIBRARIES ${OPENGL_LIBRARIES} )
+#### end var setup  ###
+SETUP_EXAMPLE(osgobjectcache)
diff --git a/examples/osgobjectcache/osgobjectcache.cpp b/examples/osgobjectcache/osgobjectcache.cpp
new file mode 100644
index 000000000..2e992a6e0
--- /dev/null
+++ b/examples/osgobjectcache/osgobjectcache.cpp
@@ -0,0 +1,65 @@
+/* OpenSceneGraph example, osgobjectcache.
+*
+*  Permission is hereby granted, free of charge, to any person obtaining a copy
+*  of this software and associated documentation files (the "Software"), to deal
+*  in the Software without restriction, including without limitation the rights
+*  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+*  copies of the Software, and to permit persons to whom the Software is
+*  furnished to do so, subject to the following conditions:
+*
+*  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+*  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+*  THE SOFTWARE.
+*/
+
+#include <osg/Group>
+#include <osgDB/ReadFile>
+
+#include <osgViewer/Viewer>
+
+
+osg::Group* createObjectCache()
+{
+    osg::Group* group = new osg::Group();
+
+    if (osgDB::Registry::instance()->getOptions()==0)
+        osgDB::Registry::instance()->setOptions(new osgDB::Options());
+    osgDB::Registry::instance()->getOptions()->setObjectCacheHint(osgDB::Options::CACHE_ALL);
+    
+    osg::ref_ptr<osgDB::Options> options1 = new osgDB::Options("a=1 b=2 c=3");
+    options1->setObjectCacheHint(osgDB::Options::CACHE_ALL);
+    osg::ref_ptr<osgDB::Options> options2 = new osgDB::Options("a=6 b=7 c=8");
+    options2->setObjectCacheHint(osgDB::Options::CACHE_ALL);
+    osg::ref_ptr<osgDB::Options> options3 = new osgDB::Options("b=7 a=6 c=8");
+    options3->setObjectCacheHint(osgDB::Options::CACHE_ALL);
+    osg::ref_ptr<osg::Node> node1 = osgDB::readRefNodeFile("cessna.osg");
+    osg::ref_ptr<osg::Node> node2 = osgDB::readRefNodeFile("cessna.osg", options1);
+    osg::ref_ptr<osg::Node> node3 = osgDB::readRefNodeFile("cessna.osg", options2);
+    osg::ref_ptr<osg::Node> node4 = osgDB::readRefNodeFile("cessna.osg", options1);
+    osg::ref_ptr<osg::Node> node5 = osgDB::readRefNodeFile("cessna.osg", options2);
+    osg::ref_ptr<osg::Node> node6 = osgDB::readRefNodeFile("cessna.osg", options3);
+
+    group->addChild(node1);
+    group->addChild(node2);
+    group->addChild(node3);
+    group->addChild(node4);
+    group->addChild(node5);
+    group->addChild(node6);
+    return group;
+}
+
+int main(int , char **)
+{
+    // construct the viewer.
+    osgViewer::Viewer viewer;
+
+    // add model to viewer.
+    viewer.setSceneData(createObjectCache());
+
+    // create the windows and run the threads.
+    return viewer.run();
+}