FGFS-4.1/OpenSceneGraph
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Added XML support and slideshow constructor to slideshow3D example, now

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renamed from the previous osgslideshow.
This commit is contained in:
Robert Osfield 2003-07-22 12:39:40 +00:00
parent 31115ffd2d
commit f7ad937020
12 changed files with 633 additions and 23 deletions
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4
Make/makedirdefs
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@ -48,7 +48,7 @@ PLUGIN_DIRS = \
txp\
zip\
3dc\
ive
ive\
# comment in if you have Performer installed.
@ -137,7 +137,6 @@ EXAMPLE_DIRS = \
osgshaders\
osgshadowtexture\
osgshape\
osgslideshow\
osgstereoimage\
osgteapot\
osgtext\
@ -150,6 +149,7 @@ EXAMPLE_DIRS = \
osgvertexprogram\
osgviewer\
osgwindows\
slideshow3D\
# osgpagedlod\
# osgsimulation\

4
VisualStudio/osgDB/osgDB.dsp
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@ -53,7 +53,7 @@ BSC32=bscmake.exe
# ADD BSC32 /nologo
LINK32=link.exe
# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /dll /machine:I386
# ADD LINK32 /nologo /dll /pdb:none /machine:I386 /out:"../../bin/osgDB.dll" /libpath:"../../lib"
# ADD LINK32 OpenThreadsWin32.lib /nologo /dll /pdb:none /machine:I386 /out:"../../bin/osgDB.dll" /libpath:"../../lib"
!ELSEIF "$(CFG)" == "Core osgDB - Win32 Debug"
@ -79,7 +79,7 @@ BSC32=bscmake.exe
# ADD BSC32 /nologo
LINK32=link.exe
# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /dll /debug /machine:I386 /pdbtype:sept
# ADD LINK32 opengl32.lib glu32.lib /nologo /dll /debug /machine:I386 /out:"../../bin/osgDBd.dll" /pdbtype:sept /libpath:"../../lib"
# ADD LINK32 OpenThreadsWin32d.lib opengl32.lib glu32.lib /nologo /dll /debug /machine:I386 /out:"../../bin/osgDBd.dll" /pdbtype:sept /libpath:"../../lib"
# SUBTRACT LINK32 /pdb:none
!ENDIF

16
examples/osgslideshow/GNUmakefile.inst
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@ -1,16 +0,0 @@
TOPDIR = ../..
include $(TOPDIR)/Make/makedefs
CXXFILES =\
SlideEventHandler.cpp\
DefaultPresentation.cpp\
osgviewer.cpp\
LIBS += -losgProducer -lProducer -losgDB -losgText -losgUtil -losg $(GL_LIBS) $(X_LIBS) $(OTHER_LIBS)
EXEC = osgslideshow
INC += $(PRODUCER_INCLUDE_DIR) -I/usr/X11R6/include
LDFLAGS += $(PRODUCER_LIB_DIR)
include $(TOPDIR)/Make/makerules

0
examples/osgslideshow/DefaultPresentation.cpp → examples/slideshow3D/DefaultPresentation.cpp
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9
examples/osgslideshow/GNUmakefile → examples/slideshow3D/GNUmakefile
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@ -2,17 +2,20 @@ TOPDIR = ../..
include $(TOPDIR)/Make/makedefs
CXXFILES =\
SlideShowConstructor.cpp\
SlideEventHandler.cpp\
DefaultPresentation.cpp\
osgslideshow.cpp\
ReaderWriterXML.cpp\
slideshow3D.cpp\
LIBS += -losgProducer -lProducer -losgText -losgGA -losgDB -losgUtil -losg $(GL_LIBS) $(X_LIBS) $(OTHER_LIBS)
CXXFLAGS += -I/usr/include/libxml2
LIBS += -lxml2 -losgProducer -lProducer -losgText -losgGA -losgDB -losgUtil -losg $(GL_LIBS) $(X_LIBS) $(OTHER_LIBS)
INSTFILES = \
$(CXXFILES)\
GNUmakefile.inst=GNUmakefile
EXEC = osgslideshow
EXEC = slideshow3D
INC += $(PRODUCER_INCLUDE_DIR) -I/usr/X11R6/include
LDFLAGS += $(PRODUCER_LIB_DIR)

19
examples/slideshow3D/GNUmakefile.inst Normal file
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@ -0,0 +1,19 @@
TOPDIR = ../..
include $(TOPDIR)/Make/makedefs
CXXFILES =\
SlideShowConstructor.cpp\
SlideEventHandler.cpp\
DefaultPresentation.cpp\
ReaderWriterXML.cpp\
slideshow3D.cpp\
CXXFLAGS += -I/usr/include/libxml2
LIBS += -lxml2 -losgProducer -lProducer -losgDB -losgText -losgUtil -losg $(GL_LIBS) $(X_LIBS) $(OTHER_LIBS)
EXEC = slideshow3D
INC += $(PRODUCER_INCLUDE_DIR) -I/usr/X11R6/include
LDFLAGS += $(PRODUCER_LIB_DIR)
include $(TOPDIR)/Make/makerules

256
examples/slideshow3D/ReaderWriterXML.cpp Normal file
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@ -0,0 +1,256 @@
#include <osgDB/ReaderWriter>
#include <osgDB/FileNameUtils>
#include <osgDB/Registry>
#include "SlideShowConstructor.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <libxml/xmlmemory.h>
#include <libxml/parser.h>
/**
* OpenSceneGraph plugin wrapper/converter.
*/
class ReaderWriterSS3D : public osgDB::ReaderWriter
{
public:
ReaderWriterSS3D() { }
virtual const char* className()
{
return "slideshow3D XML Reader/Writer";
}
virtual bool acceptsExtension(const std::string& extension)
{
return osgDB::equalCaseInsensitive(extension,"ss3d") ||
osgDB::equalCaseInsensitive(extension,"xml") ;
}
virtual ReadResult readNode(const std::string& fileName,
const osgDB::ReaderWriter::Options* options);
void parseModel(SlideShowConstructor& constructor, xmlDocPtr doc, xmlNodePtr cur);
void parseLayer(SlideShowConstructor& constructor, xmlDocPtr doc, xmlNodePtr cur);
void parseSlide (SlideShowConstructor& constructor, xmlDocPtr doc, xmlNodePtr cur);
osg::Vec4 mapStringToColor(const std::string& str)
{
if (str=="BLACK") return osg::Vec4(0.0f,0.0f,0.0f,1.0f);
else return osg::Vec4(1.0f,1.0f,1.0f,1.0f);
}
};
// Register with Registry to instantiate the above reader/writer.
osgDB::RegisterReaderWriterProxy<ReaderWriterSS3D> g_readerWriter_SS3D_Proxy;
void ReaderWriterSS3D::parseModel(SlideShowConstructor& constructor, xmlDocPtr doc, xmlNodePtr cur)
{
std::string filename;
float scale = 1.0f;
float rotation = 0.0f;
float position = 0.5f;
printf(" new model\n");
xmlChar *key;
cur = cur->xmlChildrenNode;
while (cur != NULL)
{
if ((!xmlStrcmp(cur->name, (const xmlChar *)"filename")))
{
key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
printf(" filename: %s\n", key);
xmlFree(key);
}
else if ((!xmlStrcmp(cur->name, (const xmlChar *)"scale")))
{
key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
printf(" scale: %s\n", key);
xmlFree(key);
}
else if ((!xmlStrcmp(cur->name, (const xmlChar *)"rotation")))
{
key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
printf(" rotation: %s\n", key);
xmlFree(key);
}
else if ((!xmlStrcmp(cur->name, (const xmlChar *)"position")))
{
key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
printf(" position: %s\n", key);
xmlFree(key);
}
cur = cur->next;
}
if (!filename.empty()) constructor.addModel(filename,scale,rotation,position);
}
void ReaderWriterSS3D::parseLayer(SlideShowConstructor& constructor, xmlDocPtr doc, xmlNodePtr cur)
{
constructor.addLayer();
printf(" new layer\n");
xmlChar *key;
cur = cur->xmlChildrenNode;
while (cur != NULL)
{
if ((!xmlStrcmp(cur->name, (const xmlChar *)"bullet")))
{
key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
constructor.addBullet((const char*)key);
printf(" bullet: %s\n", key);
xmlFree(key);
}
else if ((!xmlStrcmp(cur->name, (const xmlChar *)"paragraph")))
{
key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
printf(" paragraph: %s\n", key);
constructor.addParagraph((const char*)key);
xmlFree(key);
}
else if ((!xmlStrcmp(cur->name, (const xmlChar *)"image")))
{
std::string filename;
float height = 1.0f;
key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
printf(" image: %s\n", key);
filename = (const char*)key;
xmlFree(key);
key = xmlGetProp (cur, (const xmlChar *)"height");
if (key)
{
printf(" height: %s\n", key);
height = atoi((const char*)key);
xmlFree(key);
}
constructor.addImage(filename,height);
}
else if ((!xmlStrcmp(cur->name, (const xmlChar *)"model")))
{
parseModel(constructor, doc,cur);
}
cur = cur->next;
}
}
void ReaderWriterSS3D::parseSlide (SlideShowConstructor& constructor, xmlDocPtr doc, xmlNodePtr cur)
{
printf("new slide\n");
constructor.addSlide();
xmlChar *key;
cur = cur->xmlChildrenNode;
while (cur != NULL)
{
if ((!xmlStrcmp(cur->name, (const xmlChar *)"title")))
{
key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
constructor.setSlideTitle((const char*)key);
printf(" title: %s\n", key);
xmlFree(key);
}
else if ((!xmlStrcmp(cur->name, (const xmlChar *)"background")))
{
key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
constructor.setSlideBackground((const char*)key);
printf(" background: %s\n", key);
xmlFree(key);
}
else if ((!xmlStrcmp(cur->name, (const xmlChar *)"layer")))
{
parseLayer (constructor, doc, cur);
}
cur = cur->next;
}
return;
}
osgDB::ReaderWriter::ReadResult ReaderWriterSS3D::readNode(const std::string& fileName,
const osgDB::ReaderWriter::Options* options)
{
std::string ext = osgDB::getLowerCaseFileExtension(fileName);
if (!acceptsExtension(ext))
return ReadResult::FILE_NOT_HANDLED;
xmlDocPtr doc;
xmlNodePtr cur;
doc = xmlParseFile(fileName.c_str());
if (doc == NULL ) {
fprintf(stderr,"Document not parsed successfully. \n");
return ReadResult::FILE_NOT_HANDLED;
}
cur = xmlDocGetRootElement(doc);
if (cur == NULL) {
fprintf(stderr,"empty document\n");
xmlFreeDoc(doc);
return ReadResult::FILE_NOT_HANDLED;
}
if (xmlStrcmp(cur->name, (const xmlChar *) "presentation")) {
fprintf(stderr,"document of the wrong type, root node != story");
xmlFreeDoc(doc);
return ReadResult::FILE_NOT_HANDLED;
}
SlideShowConstructor constructor;
xmlChar *key;
cur = cur->xmlChildrenNode;
while (cur != NULL) {
if ((!xmlStrcmp(cur->name, (const xmlChar *)"name")))
{
key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
constructor.setPresentationName((const char*)key);
printf("name: %s\n", key);
xmlFree(key);
}
else if ((!xmlStrcmp(cur->name, (const xmlChar *)"bgcolor")))
{
key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
constructor.setBackgroundColor(mapStringToColor((const char*)key));
printf("bgcolor: %s\n", key);
xmlFree(key);
}
else if ((!xmlStrcmp(cur->name, (const xmlChar *)"textcolor")))
{
key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
constructor.setTextColor(mapStringToColor((const char*)key));
printf("textcolor: %s\n", key);
xmlFree(key);
}
else if ((!xmlStrcmp(cur->name, (const xmlChar *)"slide")))
{
parseSlide (constructor, doc, cur);
}
cur = cur->next;
}
xmlFreeDoc(doc);
return constructor.takePresentation();
}

0
examples/osgslideshow/SlideEventHandler.cpp → examples/slideshow3D/SlideEventHandler.cpp
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0
examples/osgslideshow/SlideEventHandler.h → examples/slideshow3D/SlideEventHandler.h
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262
examples/slideshow3D/SlideShowConstructor.cpp Normal file
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@ -0,0 +1,262 @@
#include "SlideShowConstructor.h"
#include <osg/Geometry>
#include <osg/PolygonOffset>
#include <osg/Geode>
#include <osg/Texture2D>
#include <osg/MatrixTransform>
#include <osgDB/ReadFile>
#include <osgText/Text>
SlideShowConstructor::SlideShowConstructor()
{
_slideOrigin.set(0.0f,0.0f,0.0f);
_slideWidth = 1280.0f;
_slideHeight = 1024.0f;
_backgroundColor.set(0.0f,0.0f,0.0f,1.0f);
_textColor.set(1.0f,1.0f,1.0f,1.0f);
_textFont = "fonts/arial.ttf";
}
void SlideShowConstructor::createPresentation()
{
_titleHeight = _slideHeight*0.08f;
_titleOrigin = _slideOrigin + osg::Vec3(_slideWidth*0.5f,0.0f,_slideHeight*0.98f-_titleHeight);
_textHeight = _slideHeight*0.05f;
_textOrigin = _slideOrigin + osg::Vec3(_slideWidth*0.1f,0.0f,_titleOrigin.z()-2*_textHeight);
_imageOrigin = _slideOrigin + osg::Vec3(_slideWidth*0.7f,0.0f,_titleOrigin.z()*0.5f);
_modelLeft = _slideOrigin + osg::Vec3(_slideWidth*0.0f,0.0f,_titleOrigin.z()*0.5f);
_modelRight = _slideOrigin + osg::Vec3(_slideWidth*1.0f,0.0f,_titleOrigin.z()*0.5f);
_root = new osg::ClearNode;
_root->setClearColor(_backgroundColor);
_presentationSwitch = new osg::Switch;
_presentationSwitch->setName(std::string("Presentation_")+_presentationName);
_root->addChild(_presentationSwitch.get());
}
void SlideShowConstructor::setBackgroundColor(const osg::Vec4& color)
{
_backgroundColor = color;
if (_root.valid()) _root->setClearColor(_backgroundColor);
}
void SlideShowConstructor::setTextColor(const osg::Vec4& color)
{
_textColor = color;
}
void SlideShowConstructor::setPresentationName(const std::string& name)
{
_presentationName = name;
if (_presentationSwitch.valid()) _presentationSwitch->setName(std::string("Presentation_")+_presentationName);
}
void SlideShowConstructor::addSlide()
{
if (!_presentationSwitch) createPresentation();
// reset cursors
_textCursor = _textOrigin;
_imageCursor = _imageOrigin;
_modelCursor = _modelLeft*0.5f + _modelRight*0.5f;
_slide = new osg::Switch;
_slide->setName(std::string("Slide_")+_slideTitle);
_presentationSwitch->addChild(_slide.get());
_previousLayer = 0;
_currentLayer = 0;
}
void SlideShowConstructor::addLayer()
{
if (!_slide) addSlide();
_previousLayer = _currentLayer;
_currentLayer = new osg::Group;
_slide->addChild(_currentLayer.get());
if (!_previousLayer)
{
// create the background and title..
if (!_slideBackgroundImageFileName.empty())
{
osg::Geometry* backgroundQuad = osg::createTexturedQuadGeometry(_slideOrigin,
osg::Vec3(_slideWidth,0.0f,0.0f),
osg::Vec3(0.0f,0.0f,_slideHeight));
osg::Geode* background = new osg::Geode;
osg::StateSet* backgroundStateSet = background->getOrCreateStateSet();
backgroundStateSet->setAttributeAndModes(
new osg::PolygonOffset(1.0f,1.0f),
osg::StateAttribute::ON);
backgroundStateSet->setTextureAttributeAndModes(0,
new osg::Texture2D(osgDB::readImageFile(_slideBackgroundImageFileName)),
osg::StateAttribute::ON);
background->addDrawable(backgroundQuad);
_currentLayer->addChild(background);
}
if (!_slideTitle.empty())
{
osg::Geode* geode = new osg::Geode;
osgText::Text* text = new osgText::Text;
text->setFont(_textFont);
text->setColor(_textColor);
text->setCharacterSize(_titleHeight);
text->setAxisAlignment(osgText::Text::XZ_PLANE);
text->setAlignment(osgText::Text::CENTER_BASE_LINE);
text->setPosition(_titleOrigin);
text->setText(_slideTitle);
geode->addDrawable(text);
_currentLayer->addChild(geode);
}
}
else
{
// copy previous layer's children across into new layer.
for(unsigned int i=0;i<_previousLayer->getNumChildren();++i)
{
_currentLayer->addChild(_previousLayer->getChild(i));
}
}
}
void SlideShowConstructor::addBullet(const std::string& bullet)
{
if (!_currentLayer) addLayer();
osg::Geode* geode = new osg::Geode;
osgText::Text* text = new osgText::Text;
text->setFont(_textFont);
text->setColor(_textColor);
text->setCharacterSize(_textHeight);
text->setAxisAlignment(osgText::Text::XZ_PLANE);
text->setAlignment(osgText::Text::BASE_LINE);
text->setPosition(_textCursor);
text->setText(bullet);
osg::BoundingBox bb = text->getBound();
_textCursor.z() = bb.zMin()-_textHeight;
geode->addDrawable(text);
_currentLayer->addChild(geode);
}
void SlideShowConstructor::addParagraph(const std::string& paragraph)
{
if (!_currentLayer) addLayer();
osg::Geode* geode = new osg::Geode;
osgText::Text* text = new osgText::Text;
text->setFont(_textFont);
text->setColor(_textColor);
text->setCharacterSize(_textHeight);
text->setAxisAlignment(osgText::Text::XZ_PLANE);
text->setAlignment(osgText::Text::BASE_LINE);
text->setPosition(_textCursor);
text->setText(paragraph);
osg::BoundingBox bb = text->getBound();
_textCursor.z() = bb.zMin()-_textHeight;
geode->addDrawable(text);
_currentLayer->addChild(geode);
}
void SlideShowConstructor::addImage(const std::string& filename,float height)
{
if (!_currentLayer) addLayer();
osg::Image* image = osgDB::readImageFile(filename);
if (!image) return;
float s = image->s();
float t = image->t();
float image_height = _slideHeight*0.6f;
float image_width = image_height*s/t;
osg::Vec3 pos = _imageCursor + osg::Vec3(-image_width*0.5f,-height*image_height*0.1f,-image_height*0.5f);
osg::Geometry* backgroundQuad = osg::createTexturedQuadGeometry(pos,
osg::Vec3(image_width,0.0f,0.0f),
osg::Vec3(0.0f,0.0f,image_height));
osg::Geode* background = new osg::Geode;
osg::StateSet* backgroundStateSet = background->getOrCreateStateSet();
backgroundStateSet->setTextureAttributeAndModes(0,
new osg::Texture2D(image),
osg::StateAttribute::ON);
background->addDrawable(backgroundQuad);
_currentLayer->addChild(background);
}
void SlideShowConstructor::addModel(const std::string& filename,float scale,float rotation,float position)
{
if (!_currentLayer) addLayer();
osg::Node* model = osgDB::readNodeFile(filename);
if (!model) return;
osg::Vec3 pos = _modelLeft*(1.0f-position) + _modelRight*position;
float radius = scale*_slideHeight*0.7f;
osg::Quat quat;
quat.makeRotate(osg::DegreesToRadians(rotation),0.0f,0.0f,1.0f);
osg::MatrixTransform* transform = new osg::MatrixTransform;
const osg::BoundingSphere& bs = model->getBound();
transform->setDataVariance(osg::Object::STATIC);
transform->setMatrix(osg::Matrix::translate(-bs.center())*
osg::Matrix::scale(radius/bs.radius(),radius/bs.radius(),radius/bs.radius())*
osg::Matrix::rotate(quat)*
osg::Matrix::translate(pos));
transform->addChild(model);
_currentLayer->addChild(transform);
}

86
examples/slideshow3D/SlideShowConstructor.h Normal file
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@ -0,0 +1,86 @@
#ifndef SLIDESHOWCONSTUCTOR
#define SLIDESHOWCONSTRUCTOR
#include <osg/Vec3>
#include <osg/Vec4>
#include <osg/Group>
#include <osg/ClearNode>
#include <osg/Switch>
class SlideShowConstructor
{
public:
SlideShowConstructor();
void createPresentation();
void setBackgroundColor(const osg::Vec4& color);
void setTextColor(const osg::Vec4& color);
void setPresentationName(const std::string& name);
void addSlide();
void setSlideTitle(const std::string& name) { _slideTitle = name; }
void setSlideBackground(const std::string& name) { _slideBackgroundImageFileName = name; }
void addLayer();
void addBullet(const std::string& bullet);
void addParagraph(const std::string& paragraph);
void addImage(const std::string& filename,float height);
void addModel(const std::string& filename,float scale,float rotation,float position);
osg::ClearNode* takePresentation() { return _root.release(); }
osg::ClearNode* getPresentation() { return _root.get(); }
osg::Switch* getPresentationSwitch() { return _presentationSwitch.get(); }
osg::Switch* getCurrentSlide() { return _slide.get(); }
osg::Group* getCurrentLayer() { return _currentLayer.get(); }
protected:
osg::Vec3 _slideOrigin;
float _slideWidth;
float _slideHeight;
osg::Vec4 _backgroundColor;
osg::Vec4 _textColor;
std::string _textFont;
float _titleHeight;
float _textHeight;
std::string _presentationName;
osg::Vec3 _titleOrigin;
osg::Vec3 _textOrigin;
osg::Vec3 _imageOrigin;
osg::Vec3 _modelLeft;
osg::Vec3 _modelRight;
osg::Vec3 _textCursor;
osg::Vec3 _imageCursor;
osg::Vec3 _modelCursor;
osg::ref_ptr<osg::ClearNode> _root;
osg::ref_ptr<osg::Switch> _presentationSwitch;
osg::ref_ptr<osg::Switch> _slide;
std::string _slideTitle;
std::string _slideBackgroundImageFileName;
osg::ref_ptr<osg::Group> _previousLayer;
osg::ref_ptr<osg::Group> _currentLayer;
};
#endif

0
examples/osgslideshow/osgslideshow.cpp → examples/slideshow3D/slideshow3D.cpp
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