treevisitorfactory.hxx

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#ifndef INCLUDED_SDEXT_SOURCE_PDFIMPORT_INC_TREEVISITORFACTORY_HXX
#define INCLUDED_SDEXT_SOURCE_PDFIMPORT_INC_TREEVISITORFACTORY_HXX

#include <memory>

namespace pdfi
{
    struct ElementTreeVisitor;
    struct EmitContext;
    class PDFIProcessor;
    class StyleContainer;

    struct TreeVisitorFactory
    {
        virtual ~TreeVisitorFactory() {}

        virtual std::shared_ptr<ElementTreeVisitor> createOptimizingVisitor(PDFIProcessor&) const = 0;
        virtual std::shared_ptr<ElementTreeVisitor> createStyleCollectingVisitor(
            StyleContainer&, PDFIProcessor&) const = 0;
        virtual std::shared_ptr<ElementTreeVisitor> createEmittingVisitor(EmitContext&) const = 0;
    };

    typedef std::shared_ptr<TreeVisitorFactory> TreeVisitorFactorySharedPtr;

    TreeVisitorFactorySharedPtr createWriterTreeVisitorFactory();
    TreeVisitorFactorySharedPtr createImpressTreeVisitorFactory();
    TreeVisitorFactorySharedPtr createDrawTreeVisitorFactory();
}

#endif

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