CustomModelCompiler.h

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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/>
*/
#ifndef OSGEARTH_FEATURES_CUSTOMMODEL_COMPILER_H
#define OSGEARTH_FEATURES_CUSTOMMODEL_COMPILER_H 1

#include <osgdb_osgearth_model_feature_custom/CustomModelPrereqs.h>
#include <osgEarthFeatures/Common>
#include <osgEarthFeatures/Feature>
#include <osgEarthFeatures/FeatureCursor>
#include <osgEarthFeatures/ResampleFilter>
#include <osgEarthSymbology/Style>
#include <osgEarth/GeoMath>

namespace osgEarth { namespace Features
{
    using namespace osgEarth;
    using namespace osgEarth::Symbology;

    class SubstituteCustomModelFilter;

    class OSGDB_OSGEARTH_MODEL_FEATURE_CUSTOM_EXPORT CustomModelCompilerOptions : public ConfigOptions
    {
    public:
        CustomModelCompilerOptions( const ConfigOptions& conf =ConfigOptions() );

    public:
        optional<double>& maxGranularity() { return _maxGranularity_deg; }
        const optional<double>& maxGranularity() const { return _maxGranularity_deg; }

        optional<GeoInterpolation>& geoInterp() { return _geoInterp; }
        const optional<GeoInterpolation>& geoInterp() const { return _geoInterp; }

        optional<bool>& mergeGeometry() { return _mergeGeometry; }
        const optional<bool>& mergeGeometry() const { return _mergeGeometry; }

        optional<StringExpression>& featureName() { return _featureNameExpr; }
        const optional<StringExpression>& featureName() const { return _featureNameExpr; }

        optional<bool>& clustering() { return _clustering; }
        const optional<bool>& clustering() const { return _clustering; }

        optional<bool>& indirectRendering() { return _indirectRendering; }
        const optional<bool>& indirectRendering() const { return _indirectRendering; }

        //todo: merge this with geoInterp()
        optional<osgEarth::Features::ResampleFilter::ResampleMode>& resampleMode() { return _resampleMode;}
        const optional<osgEarth::Features::ResampleFilter::ResampleMode>& resampleMode() const { return _resampleMode;}

        optional<double>& resampleMaxLength() { return _resampleMaxLength; }
        const optional<double>& resampleMaxLength() const { return _resampleMaxLength;}


    public:
        Config getConfig() const;
        void mergeConfig( const Config& conf );

    private:
        optional<double>               _maxGranularity_deg;
        optional<GeoInterpolation>     _geoInterp;
        optional<bool>                 _mergeGeometry;
        optional<StringExpression>     _featureNameExpr;
        optional<bool>                 _clustering;
        optional<bool>                 _indirectRendering;
        optional<osgEarth::Features::ResampleFilter::ResampleMode> _resampleMode;
        optional<double>               _resampleMaxLength;

        void fromConfig( const Config& conf );
    };

    class OSGDB_OSGEARTH_MODEL_FEATURE_CUSTOM_EXPORT CustomModelCompiler
    {
    public:

        CustomModelCompiler();

        CustomModelCompiler( const CustomModelCompilerOptions& options );

        virtual ~CustomModelCompiler() { }

        const CustomModelCompilerOptions& options() const { return _options; }

        CustomModelCompilerOptions& options() { return _options; }

    public:

        osg::Node* compile(
            FeatureCursor*        input,
            const Style&          style,
            const FilterContext&  context);

        osg::Node* compile(
            Feature*              input,
            const Style&          style,
            const FilterContext&  context);

        osg::Node* compile(
            FeatureList&          mungeableInput,
            const Style&          style,
            const FilterContext&  context);

    protected:
        CustomModelCompilerOptions _options;

        virtual SubstituteCustomModelFilter* createModelFilter(const Style& style) const;
    };

} } // namespace osgEarth::Features

#endif // OSGEARTH_FEATURES_GEOMETRY_COMPILER_H