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Restructed the osgPresentation and present3D directories back to the structure that was present in OSG-3.2

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git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14759 16af8721-9629-0410-8352-f15c8da7e697
This commit is contained in:
Robert Osfield
2015-03-04 18:36:44 +00:00
parent 26d1679248
commit 8c8b8f3305
37 changed files with 127 additions and 130 deletions
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188
applications/present3D/ExportHTML.cpp Normal file
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/* -*-c++-*- Present3D - Copyright (C) 1999-2006 Robert Osfield
*
* This software is open source and may be redistributed and/or modified under
* the terms of the GNU General Public License (GPL) version 2.0.
* The full license is in LICENSE.txt file included with this distribution,.
*
* This software 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
* include LICENSE.txt for more details.
*/
#include "ExportHTML.h"
#include <osgDB/FileNameUtils>
#include <osgDB/WriteFile>
#include <sstream>
#include <iostream>
template<typename A, typename B, typename C>
std::string createString(const A& a, const B& b, const C& c)
{
std::ostringstream hos;
hos << a << b << c;
return hos.str();
}
template<typename A, typename B, typename C, typename D>
std::string createString(const A& a, const B& b, const C& c, const D& d)
{
std::ostringstream hos;
hos << a << b << c << d;
return hos.str();
}
class SnapImageDrawCallback : public osg::Camera::DrawCallback
{
public:
SnapImageDrawCallback():
_snapImageOnNextFrame(false)
{
}
void setFileName(const std::string& filename) { _filename = filename; }
const std::string& getFileName() const { return _filename; }
void setSnapImageOnNextFrame(bool flag) { _snapImageOnNextFrame = flag; }
bool getSnapImageOnNextFrame() const { return _snapImageOnNextFrame; }
virtual void operator () (const osg::Camera& camera) const
{
if (!_snapImageOnNextFrame) return;
int x = static_cast<int>(camera.getViewport()->x());
int y = static_cast<int>(camera.getViewport()->y());
unsigned int width = static_cast<unsigned int>(camera.getViewport()->width());
unsigned int height = static_cast<unsigned int>(camera.getViewport()->height());
osg::ref_ptr<osg::Image> image = new osg::Image;
image->readPixels(x,y,width,height,
GL_RGB,GL_UNSIGNED_BYTE);
if (osgDB::writeImageFile(*image,_filename))
{
osg::notify(osg::NOTICE) << "Saved screen image to `"<<_filename<<"`"<< std::endl;
}
_snapImageOnNextFrame = false;
}
protected:
std::string _filename;
mutable bool _snapImageOnNextFrame;
};
std::string ExportHTML::createFileName(const std::string& basename, unsigned int page, const std::string& ext)
{
if (page==0) return basename+ext;
else return createString(basename,'_', page, ext);
}
bool ExportHTML::write(osgPresentation::SlideEventHandler* seh, osgViewer::Viewer& viewer, const std::string& filename)
{
std::string image_basename;
std::string image_ext;
std::string html_basename;
std::string html_ext;
std::string ext = osgDB::getFileExtension(filename);
if (ext=="html" || ext=="htm")
{
image_basename = osgDB::getNameLessExtension(filename);
image_ext = ".jpg";
html_basename = osgDB::getNameLessExtension(filename);
html_ext = std::string(".")+ext;
}
else
{
image_basename = osgDB::getNameLessExtension(filename);
image_ext = ".jpg";
}
std::cout<<"Writing slides to "<<image_basename<<"_[slidenumber]"<<image_ext<<std::endl;
osg::ref_ptr<SnapImageDrawCallback> sidc = new SnapImageDrawCallback;
osgViewer::Viewer::Cameras cameras;
viewer.getCameras(cameras);
for(osgViewer::Viewer::Cameras::iterator itr = cameras.begin();
itr != cameras.end();
++itr)
{
(*itr)->setPostDrawCallback(sidc.get());
}
std::string home_file = createFileName(html_basename, 0, html_ext);
unsigned int i;
for(i=0; i<seh->getNumSlides(); ++i)
{
std::ostringstream os;
os << image_basename <<"_"<<i<<image_ext;
sidc->setFileName(os.str());
sidc->setSnapImageOnNextFrame(true);
if (!html_basename.empty())
{
std::string htmlFileName = createFileName(html_basename, i, html_ext);
std::ofstream fout(htmlFileName.c_str());
if (fout)
{
std::string previous_file = i>0 ? createFileName(html_basename,i-1,html_ext) : "";
std::string next_file = i<seh->getNumSlides()-1 ? createFileName(html_basename,i+1,html_ext) : "";
std::cout<<"Writing html slides "<<htmlFileName<<std::endl;
fout<<"<html>"<<std::endl;
fout<<"<table width=\"100%\">"<<std::endl;
fout<<"<tr>"<<std::endl;
if (!previous_file.empty())
{
fout<<"<td align=\"left\" width=\"33%\"><a href=\""<<osgDB::getSimpleFileName(previous_file)<<"\"> Previous </a></td>"<<std::endl;
}
else
{
fout<<"<td align=\"left\" width=\"33%\"></td>"<<std::endl;
}
if (i != 0)
{
fout<<"<td align=\"center\" width=\"33%\"><a href=\""<<osgDB::getSimpleFileName(home_file)<<"\"> Home </a></td>"<<std::endl;
}
else
{
fout<<"<td align=\"center\" width=\"33%\"></td>"<<std::endl;
}
if (!next_file.empty())
{
fout<<"<td align=\"right\" width=\"33%\"><a href=\""<<osgDB::getSimpleFileName(next_file)<<"\"> Next </a></td>"<<std::endl;
}
else
{
fout<<"<td align=\"right\" width=\"33%\"></td>"<<std::endl;
}
fout<<"</tr>"<<std::endl;
fout<<"</table>"<<std::endl;
fout<<"<img src=\""<<osgDB::getSimpleFileName(os.str())<<"\">"<<std::endl;
fout<<"</html>"<<std::endl;
}
else
{
std::cout<<"Could not open '"<<filename<<"' for writing."<<std::endl;
}
}
// wait for all cull and draw threads to complete.
seh->selectSlide(i, osgPresentation::SlideEventHandler::LAST_POSITION);
// fire off the cull and draw traversals of the scene.
viewer.frame();
}
return true;
}