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#ifndef LoadWriterDae_INCLUDE_ONCE
#define LoadWriterDae_INCLUDE_ONCE

#include <vlGraphics/link_config.hpp>
#include <vlCore/VirtualFile.hpp>
#include <vlCore/ResourceLoadWriter.hpp>
#include <vlCore/ResourceDatabase.hpp>

namespace vl
{
//---------------------------------------------------------------------------
// LoadWriterDae
//---------------------------------------------------------------------------
  class LoadWriterDae: public ResourceLoadWriter
  {
    VL_INSTRUMENT_CLASS(vl::LoadWriterDae, ResourceLoadWriter)

  public:
    class LoadOptions: public Object
    {
    public:
      enum TransparencyOption 
      { 
        TransparencyKeep,   
        TransparencyInvert, 
        TransparencyAuto    
      };

    public:
      LoadOptions()
      {
        mInvertTransparency = TransparencyAuto;
        mUseAlwaysMipmapping = true;
        mFlattenTransformHierarchy = true;
        mComputeMissingNormals = true;
        mFixBadNormals = true;
        mMergeDrawCalls = true;
        mExtractSkins = false;
        mLightMeshSize = 0;
        mExportLights = false;
      }

      void setFlattenTransformHierarchy(bool flatten) { mFlattenTransformHierarchy = flatten; }

      bool flattenTransformHierarchy() const { return mFlattenTransformHierarchy; }

      void setUseAlwaysMipmapping(bool use) { mUseAlwaysMipmapping = use; }

      bool useAlwaysMipmapping() const { return mUseAlwaysMipmapping; }

      void setInvertTransparency(TransparencyOption invert) { mInvertTransparency = invert; }

      TransparencyOption invertTransparency() const { return mInvertTransparency; }

      void setComputeMissingNormals(bool compute) { mComputeMissingNormals = compute; }

      bool computeMissingNormals() const { return mComputeMissingNormals; }

      void setFixBadNormals(bool fix) { mFixBadNormals = fix; }

      bool fixBadNormals() const { return mFixBadNormals; }

      void setExtractSkins(bool extract) { mExtractSkins = extract; }

      bool extractSkins() const { return mExtractSkins; }

      void setMergeDrawCalls(bool merge) { mMergeDrawCalls = merge; }

      bool mergeDrawCalls() const { return mMergeDrawCalls; }

      void setLightMeshSize(float size) { mLightMeshSize = size; }

      float lightMeshSize() const { return mLightMeshSize; }

      void setExportLights(bool exp_lights) { mExportLights = exp_lights; }

      bool exportLights() const { return mExportLights; }

    protected:
      TransparencyOption mInvertTransparency;
      bool mFlattenTransformHierarchy;
      bool mUseAlwaysMipmapping;
      bool mComputeMissingNormals;
      bool mFixBadNormals;
      bool mExtractSkins;
      bool mMergeDrawCalls;
      float mLightMeshSize;
      bool mExportLights;
    };

  public:
    static VLGRAPHICS_EXPORT ref<ResourceDatabase> load(const String& path, const LoadOptions* options);

    static VLGRAPHICS_EXPORT ref<ResourceDatabase> load(VirtualFile* file, const LoadOptions* options);

    LoadWriterDae(): ResourceLoadWriter("|dae|", "|dae|") 
    { 
      mLoadOptions = new LoadOptions;
    }

    ref<ResourceDatabase> loadResource(const String& path) const 
    {
      return load(path, loadOptions());
    }

    ref<ResourceDatabase> loadResource(VirtualFile* file) const
    {
      return load(file, loadOptions());
    }

    bool writeResource(const String& /*path*/, ResourceDatabase* /*resource*/) const
    {
      return false;
    }

    bool writeResource(VirtualFile* /*file*/, ResourceDatabase* /*resource*/) const
    {
      return false;
    }

    // --- options ---

    const LoadOptions* loadOptions() const { return mLoadOptions.get(); }

    LoadOptions* loadOptions() { return mLoadOptions.get(); }

  protected:
    ref<LoadOptions> mLoadOptions;
  };
//---------------------------------------------------------------------------
}

#endif