67 lines
2.3 KiB
C++
67 lines
2.3 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 2009-2010 Mathias Froehlich
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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/FileNameUtils>
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#include <osgDB/Registry>
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#include <osgText/Font>
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#include <QtCore/QThread>
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#include <QtGui/QApplication>
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#include <QtGui/QFont>
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#include <QtGui/QFontDatabase>
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#include <osgQt/QFontImplementation>
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namespace osgQFont {
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class ReaderQFont : public osgDB::ReaderWriter
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{
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public:
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ReaderQFont()
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{
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supportsExtension("qfont", "Qt font meta loader");
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}
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virtual const char* className() const { return "QFont Font Reader"; }
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virtual ReadResult readObject(const std::string& file, const osgDB::ReaderWriter::Options* /*options*/) const
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{
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if (!acceptsExtension(osgDB::getLowerCaseFileExtension(file)))
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return ReadResult::FILE_NOT_HANDLED;
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if (!QApplication::instance())
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{
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OSG_WARN << "Trying to load qfont \"" << file << "\" from within a non qt application!" << std::endl;
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return ReadResult::FILE_NOT_FOUND;
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}
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if (!QFontDatabase::supportsThreadedFontRendering() && QApplication::instance()->thread() != QThread::currentThread())
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{
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OSG_WARN << "Trying to load qfont \"" << file << "\" from a non gui thread "
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"within qt application without threaded font rendering!" << std::endl;
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return ReadResult::FILE_NOT_FOUND;
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}
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QFont font;
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if (!font.fromString(QString::fromStdString(osgDB::getNameLessExtension(file))))
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return ReadResult::FILE_NOT_FOUND;
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return new osgText::Font(new osgQt::QFontImplementation(font));
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}
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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(qfont, ReaderQFont)
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}
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