104 lines
3.8 KiB
C++
104 lines
3.8 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2008 Robert Osfield
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*
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* This library is open source and may be redistributed and/or modified under
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
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* (at your option) any later version. The full license is in LICENSE file
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* included with this distribution, and on the openscenegraph.org website.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* OpenSceneGraph Public License for more details.
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*/
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#include <osgDB/ReaderWriter>
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#include <osgDB/FileNameUtils>
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#include <osgDB/Registry>
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#include <osgViewer/ViewerEventHandlers>
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#include "UBrowser.h"
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class ReaderWriterUBrowser : public osgDB::ReaderWriter
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{
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public:
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ReaderWriterUBrowser()
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{
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OSG_INFO<<"ReaderWriterUBrowser::ReaderWriterUBrowser()"<<std::endl;
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supportsExtension("gecko","browser image");
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supportsExtension("browser","browser image");
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osg::ref_ptr<osgWidget::BrowserManager> previousManager = osgWidget::BrowserManager::instance();
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_initialized = false;
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osgWidget::BrowserManager::instance() = new UBrowserManager;
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if (previousManager.valid() && !(previousManager->getApplication().empty()))
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{
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osgWidget::BrowserManager::instance()->setApplication(previousManager->getApplication());
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}
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OSG_INFO<<"ReaderWriterUBrowser::ReaderWriterUBrowser() done"<<std::endl;
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}
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virtual ~ReaderWriterUBrowser()
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{
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// should we restore the previous value?
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osgWidget::BrowserManager::instance() = 0;
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}
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virtual const char* className() const { return "Browser Reader/Writer"; }
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virtual ReadResult readObject(const std::string& file, const osgDB::ReaderWriter::Options* options =NULL) const
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{
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return readImage(file, options);
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}
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virtual ReadResult readImage(const std::string& file, const osgDB::ReaderWriter::Options* options) const
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{
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std::string ext = osgDB::getLowerCaseFileExtension(file);
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if (!acceptsExtension(ext)) return ReadResult::FILE_NOT_HANDLED;
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if (!_initialized)
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{
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if (osgWidget::BrowserManager::instance()->getApplication().empty())
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{
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osgWidget::BrowserManager::instance()->setApplication(osg::DisplaySettings::instance()->getApplication());
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}
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osgWidget::BrowserManager::instance()->init(osgWidget::BrowserManager::instance()->getApplication());
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}
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unsigned int width = 1024;
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unsigned int height = 1024;
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return osgWidget::BrowserManager::instance()->createBrowserImage(osgDB::getNameLessExtension(file), width, height);
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}
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virtual osgDB::ReaderWriter::ReadResult readNode(const std::string& fileName, const osgDB::ReaderWriter::Options* options) const
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{
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osgDB::ReaderWriter::ReadResult result = readImage(fileName, options);
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if (!result.validImage()) return result;
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osg::ref_ptr<osgWidget::Browser> browser = new osgWidget::Browser();
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if (browser->assign(dynamic_cast<osgWidget::BrowserImage*>(result.getImage())))
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{
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return browser.release();
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}
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else
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{
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return osgDB::ReaderWriter::ReadResult::FILE_NOT_HANDLED;
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}
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}
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bool _initialized;
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};
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// now register with Registry to instantiate the above
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// reader/writer.
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REGISTER_OSGPLUGIN(ubrowser, ReaderWriterUBrowser)
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