/home/cube/sources/osgearth/src/osgEarthSymbology/TextSymbol.cpp

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/* -*-c++-*- */
/* osgEarth - Dynamic map generation toolkit for OpenSceneGraph
 * Copyright 2008-2010 Pelican Mapping
 * http://osgearth.org
 *
 * osgEarth is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 */
#include <osgEarthSymbology/TextSymbol>

using namespace osgEarth;
using namespace osgEarth::Symbology;

TextSymbol::TextSymbol( const Config& conf ) :
Symbol( conf ),
_fill( Fill( 1, 1, 1, 1 ) ),
_halo( Stroke( 0.3, 0.3, 0.3, 1) ),
_size( 16.0f ),
_sizeMode( SIZEMODE_SCREEN ),
_rotateToScreen( false ),
_removeDuplicateLabels( false ),
_provider( "overlay" )
{
    mergeConfig(conf);
}

Config 
TextSymbol::getConfig() const
{
    Config conf = Symbol::getConfig();
    conf.key() = "text";
    conf.addObjIfSet( "fill", _fill );
    conf.addObjIfSet( "halo", _halo );
    conf.addIfSet( "font", _font );
    conf.addIfSet( "size", _size );
    conf.addObjIfSet( "content", _content );
    conf.addObjIfSet( "priority", _priority );
    conf.addIfSet( "rotate_to_screen", _rotateToScreen );
    conf.addIfSet( "remove_duplicate_labels", _removeDuplicateLabels );
    conf.addIfSet( "size_mode", "screen", _sizeMode, SIZEMODE_SCREEN );
    conf.addIfSet( "size_mode", "object", _sizeMode, SIZEMODE_OBJECT );
    conf.addIfSet( "line_orientation", "parallel", _lineOrientation, LINEORIENTATION_PARALLEL );
    conf.addIfSet( "line_orientation", "perpendicular", _lineOrientation, LINEORIENTATION_PERPENDICULAR );
    conf.addIfSet( "line_orientation", "horizontal", _lineOrientation, LINEORIENTATION_HORIZONTAL );
    conf.addIfSet( "line_placement", "along_line", _linePlacement, LINEPLACEMENT_ALONG_LINE );
    conf.addIfSet( "line_placement", "centroid", _linePlacement, LINEPLACEMENT_CENTROID );
    conf.addIfSet( "provider", _provider );
    conf.addIfSet( "theme", _theme );
    if ( _pixelOffset.isSet() ) {
        conf.add( "pixel_offset_x", toString(_pixelOffset->x()) );
        conf.add( "pixel_offset_y", toString(_pixelOffset->y()) );
    }
    return conf;
}

void 
TextSymbol::mergeConfig( const Config& conf )
{
    conf.getObjIfSet( "fill", _fill );
    conf.getObjIfSet( "halo", _halo );
    conf.getIfSet( "font", _font );
    conf.getIfSet( "size", _size );
    conf.getObjIfSet( "content", _content );
    conf.getObjIfSet( "priority", _priority );
    conf.getIfSet( "rotate_to_screen", _rotateToScreen );
    conf.getIfSet( "remove_duplicate_labels", _removeDuplicateLabels );
    conf.getIfSet( "size_mode", "screen", _sizeMode, SIZEMODE_SCREEN );
    conf.getIfSet( "size_mode", "object", _sizeMode, SIZEMODE_OBJECT );
    conf.getIfSet( "line_orientation", "parallel", _lineOrientation, LINEORIENTATION_PARALLEL );
    conf.getIfSet( "line_orientation", "perpendicular", _lineOrientation, LINEORIENTATION_PERPENDICULAR );
    conf.getIfSet( "line_orientation", "horizontal", _lineOrientation, LINEORIENTATION_HORIZONTAL );
    conf.getIfSet( "line_placement", "along_line", _linePlacement, LINEPLACEMENT_ALONG_LINE );
    conf.getIfSet( "line_placement", "centroid", _linePlacement, LINEPLACEMENT_CENTROID );
    conf.getIfSet( "provider", _provider );
    conf.getIfSet( "theme", _theme );
    if ( conf.hasValue( "pixel_offset_x" ) )
        _pixelOffset = osg::Vec2s( conf.value<short>("pixel_offset_x",0), 0 );
    if ( conf.hasValue( "pixel_offset_y" ) )
        _pixelOffset = osg::Vec2s( _pixelOffset->x(), conf.value<short>("pixel_offset_y",0) );
}