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flightgear/src/Canvas/FGCanvasSystemAdapter.cxx
2016-11-30 12:15:54 +00:00

124 lines
3.6 KiB
C++

// Integrate Canvas into FlightGear
//
// Copyright (C) 2012 Thomas Geymayer <tomgey@gmail.com>
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of the
// License, or (at your option) any later version.
//
// This program 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 GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#include "FGCanvasSystemAdapter.hxx"
#include <Main/globals.hxx>
#include <Main/util.hxx>
#include <Network/HTTPClient.hxx>
#include <Viewer/renderer.hxx>
#include <osgDB/ReadFile>
#include <stdexcept>
namespace canvas
{
//----------------------------------------------------------------------------
simgear::canvas::FontPtr
FGCanvasSystemAdapter::getFont(const std::string& name) const
{
SGPath path = globals->resolve_resource_path("Fonts/" + name);
if( path.isNull() )
{
SG_LOG
(
SG_GL,
SG_ALERT,
"canvas::Text: No such font: " << name
);
return simgear::canvas::FontPtr();
}
SG_LOG
(
SG_GL,
SG_DEBUG,
"canvas::Text: using font file " << path
);
simgear::canvas::FontPtr font = osgText::readFontFile(path.local8BitStr());
if( !font )
SG_LOG
(
SG_GL,
SG_ALERT,
"canvas::Text: Failed to open font file " << path
);
return font;
}
//----------------------------------------------------------------------------
void FGCanvasSystemAdapter::addCamera(osg::Camera* camera) const
{
globals->get_renderer()->addCamera(camera, false);
}
//----------------------------------------------------------------------------
void FGCanvasSystemAdapter::removeCamera(osg::Camera* camera) const
{
if( globals->get_renderer() )
globals->get_renderer()->removeCamera(camera);
}
//----------------------------------------------------------------------------
osg::ref_ptr<osg::Image> FGCanvasSystemAdapter::getImage(const std::string& path) const
{
SGPath p(SGPath::fromUtf8(path));
if( p.isAbsolute() )
{
SGPath valid_path = fgValidatePath(p, false);
if( !valid_path.isNull() )
return osgDB::readImageFile(valid_path.local8BitStr());
SG_LOG(SG_IO, SG_ALERT, "canvas::Image: reading '" << path << "' denied");
}
else
{
SGPath tpath = globals->resolve_resource_path(path);
if( !tpath.isNull() )
return osgDB::readRefImageFile(tpath.local8BitStr());
SG_LOG(SG_IO, SG_ALERT, "canvas::Image: No such image: '" << path << "'");
}
return 0;
}
//----------------------------------------------------------------------------
SGSubsystem*
FGCanvasSystemAdapter::getSubsystem(const std::string& name) const
{
return globals->get_subsystem(name.c_str());
}
//----------------------------------------------------------------------------
simgear::HTTP::Client* FGCanvasSystemAdapter::getHTTPClient() const
{
FGHTTPClient* http = globals->get_subsystem<FGHTTPClient>();
if( http )
return http->client();
SG_LOG( SG_IO,
SG_ALERT,
"FGCanvasSystemAdapter: Failed to get HTTP subsystem" );
return 0;
}
}