Initial cut of Audio/Volume/Movie/Image presentation objects

2013-09-06 09:35:56 +00:00
parent df48d440e4
commit 7050c59cae
11 changed files with 292 additions and 17 deletions
--- a/src/osgPresentation/Image.cpp
+++ b/src/osgPresentation/Image.cpp
@@ -0,0 +1,64 @@
+/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2013 Robert Osfield
+ *
+ * This library is open source and may be redistributed and/or modified under
+ * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
+ * (at your option) any later version.  The full license is in LICENSE file
+ * included with this distribution, and on the openscenegraph.org website.
+ *
+ * This library 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
+ * OpenSceneGraph Public License for more details.
+*/
+
+#include <osgPresentation/Image>
+#include <osg/ValueObject>
+#include <osg/Geometry>
+#include <osg/Texture2D>
+#include <osgDB/ReadFile>
+
+using namespace osgPresentation;
+
+
+bool Image::load()
+{
+    OSG_NOTICE<<"Image::load() Not implemented yet"<<std::endl;
+
+    std::string filename;
+    getPropertyValue("filename", filename);
+
+    double scale = 1.0;
+    getPropertyValue("scale", scale);
+
+    OSG_NOTICE<<"Image : filename = "<<filename<<std::endl;
+    OSG_NOTICE<<"        scale = "<<scale<<std::endl;
+
+    osg::ref_ptr<osg::Image> image = osgDB::readImageFile(filename);
+    if (image.valid())
+    {
+        osg::Vec3d position(0.0,0.0,0.0);
+        osg::Vec3d widthVec(1.0,0.0,0.0);
+        osg::Vec3d heightVec(0.0,0.0,1.0);
+
+        osg::ref_ptr<osg::Geometry> geometry = osg::createTexturedQuadGeometry(position, widthVec, heightVec);
+        osg::ref_ptr<osg::Texture2D> texture = new osg::Texture2D(image.get());
+        texture->setResizeNonPowerOfTwoHint(false);
+        texture->setFilter(osg::Texture::MIN_FILTER, osg::Texture::LINEAR);
+        texture->setFilter(osg::Texture::MAG_FILTER, osg::Texture::LINEAR);
+        geometry->getOrCreateStateSet()->setTextureAttributeAndModes(0, texture, osg::StateAttribute::ON);
+
+        osg::ref_ptr<osg::Geode> geode = new osg::Geode;
+        geode->addDrawable(geometry.get());
+
+        addChild(geode.get());
+    }
+
+    return false;
+}
+
+bool Image::getSupportedProperties(PropertyList& pl)
+{
+    pl.push_back(ObjectDescription(new osg::StringValueObject("filename",""), std::string("Image filename to load.")));
+    pl.push_back(ObjectDescription(new osg::DoubleValueObject("scale",1.0), std::string("Image scale.")));
+    return true;
+}