FGFS-4.1/OpenSceneGraph
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Added support for correct sizing of the created presentation w.r.t the

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size of the scene, a default home position, handling of <ratio> field
in the slideshow xml file, and support for stereo image pairs.
This commit is contained in:
Robert Osfield
2003-09-15 13:54:19 +00:00
parent c1d2d67d66
commit 3ae5b72030
7 changed files with 246 additions and 204 deletions
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50
examples/slideshow3D/ReaderWriterXML.cpp
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@@ -46,6 +46,8 @@ public:
void parseModel(SlideShowConstructor& constructor, xmlDocPtr doc, xmlNodePtr cur);
void parseStereoPair(SlideShowConstructor& constructor, xmlDocPtr doc, xmlNodePtr cur);
void parseLayer(SlideShowConstructor& constructor, xmlDocPtr doc, xmlNodePtr cur);
void parseSlide (SlideShowConstructor& constructor, xmlDocPtr doc, xmlNodePtr cur);
@@ -105,6 +107,44 @@ void ReaderWriterSS3D::parseModel(SlideShowConstructor& constructor, xmlDocPtr d
if (!filename.empty()) constructor.addModel(filename,scale,rotation,position);
}
void ReaderWriterSS3D::parseStereoPair(SlideShowConstructor& constructor, xmlDocPtr doc, xmlNodePtr cur)
{
std::string filenameLeft;
std::string filenameRight;
float height = 1.0f;
xmlChar *key;
key = xmlGetProp (cur, (const xmlChar *)"height");
if (key) height = atoi((const char*)key);
xmlFree(key);
cur = cur->xmlChildrenNode;
while (cur != NULL)
{
if ((!xmlStrcmp(cur->name, (const xmlChar *)"image_left")))
{
key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
if (key) filenameLeft = (const char*)key;
xmlFree(key);
}
if ((!xmlStrcmp(cur->name, (const xmlChar *)"image_right")))
{
key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
if (key) filenameRight = (const char*)key;
xmlFree(key);
}
cur = cur->next;
}
if (!filenameLeft.empty() && !filenameRight.empty())
constructor.addStereoImagePair(filenameLeft,filenameRight,height);
}
void ReaderWriterSS3D::parseLayer(SlideShowConstructor& constructor, xmlDocPtr doc, xmlNodePtr cur)
{
constructor.addLayer();
@@ -141,6 +181,10 @@ void ReaderWriterSS3D::parseLayer(SlideShowConstructor& constructor, xmlDocPtr d
if (!filename.empty()) constructor.addImage(filename,height);
}
else if ((!xmlStrcmp(cur->name, (const xmlChar *)"stereo_pair")))
{
parseStereoPair(constructor, doc,cur);
}
else if ((!xmlStrcmp(cur->name, (const xmlChar *)"model")))
{
parseModel(constructor, doc,cur);
@@ -228,6 +272,12 @@ osgDB::ReaderWriter::ReadResult ReaderWriterSS3D::readNode(const std::string& fi
else constructor.setPresentationName("");
xmlFree(key);
}
else if ((!xmlStrcmp(cur->name, (const xmlChar *)"ratio")))
{
key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
if (key) constructor.setPresentationAspectRatio((const char*)key);
xmlFree(key);
}
else if ((!xmlStrcmp(cur->name, (const xmlChar *)"bgcolor")))
{
key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);