MapPainterGDI.h

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#ifndef OSMSCOUT_MAP_MAPPAINTERGDI_H
#define OSMSCOUT_MAP_MAPPAINTERGDI_H

/*
  This source is part of the libosmscout-map-gdi library
  Copyright (C) 2020 Transporter

  This library 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 2.1 of the License, or (at your option) any later version.

  This library 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 library; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
*/

#ifndef UNICODE
#define UNICODE
#endif
#define WIN32_LEAN_AND_MEAN
#ifndef NOMINMAX
#define NOMINMAX
#endif
#include <Windows.h>

#include <osmscout/MapGDIImportExport.h>
#include <osmscout/MapPainter.h>

namespace osmscout {

    class OSMSCOUT_MAP_GDI_API MapPainterGDI : public MapPainter
    {
    public:
        struct NativeLabel {
            std::wstring wstr;
            void* font;
            void* render;
        };
        struct NativeGlyph {
            std::string character;
            double width;
            double height;
        };
        using GdiLabel = Label<NativeGlyph, NativeLabel>;

    private:
        using GdiGlyph = Glyph<NativeGlyph>;
        using GdiLabelInstance = LabelInstance<NativeGlyph, NativeLabel>;
        using GdiLabelLayouter = LabelLayouter<NativeGlyph, NativeLabel, MapPainterGDI>;
        friend GdiLabelLayouter;

        GdiLabelLayouter                   m_labelLayouter;
        void*                              m_pBuffer;
        static ULONG_PTR                   m_gdiplusToken;
        static DWORD                       m_gdiplusInstCount;

    private:
        osmscout::DoubleRectangle GlyphBoundingBox(const NativeGlyph &glyph) const;

        std::shared_ptr<GdiLabel> Layout(const Projection& projection,
            const MapParameter& parameter,
            const std::string& text,
            double fontSize,
            double objectWidth,
            bool enableWrapping = false,
            bool contourLabel = false);

        void DrawLabel(const Projection& projection,
            const MapParameter& parameter,
            const DoubleRectangle& labelRectangle,
            const LabelData& label,
            const NativeLabel& layout);

        void DrawGlyphs(const Projection &projection,
            const MapParameter &parameter,
            const osmscout::PathTextStyleRef style,
            const std::vector<GdiGlyph> &glyphs);

    protected:
        void AfterPreprocessing(const StyleConfig& styleConfig,
            const Projection& projection,
            const MapParameter& parameter,
            const MapData& data) override;

        void BeforeDrawing(const StyleConfig& styleConfig,
            const Projection& projection,
            const MapParameter& parameter,
            const MapData& data) override;

        void AfterDrawing(const StyleConfig& styleConfig,
            const Projection& projection,
            const MapParameter& parameter,
            const MapData& data) override;

        bool HasIcon(const StyleConfig& styleConfig,
            const Projection& projection,
            const MapParameter& parameter,
            IconStyle& style) override;

        double GetFontHeight(const Projection& projection,
            const MapParameter& parameter,
            double fontSize) override;

        void DrawGround(const Projection& projection,
            const MapParameter& parameter,
            const FillStyle& style) override;

        virtual void RegisterRegularLabel(const Projection &projection,
            const MapParameter &parameter,
            const std::vector<LabelData> &labels,
            const Vertex2D &position,
            double objectWidth) override;

        virtual void RegisterContourLabel(const Projection &projection,
            const MapParameter &parameter,
            const PathLabelData &label,
            const LabelPath &labelPath) override;

        virtual void DrawLabels(const Projection& projection,
            const MapParameter& parameter,
            const MapData& data) override;

        void DrawSymbol(const Projection& projection,
            const MapParameter& parameter,
            const Symbol& style,
            double x, double y) override;

        void DrawIcon(const IconStyle* style,
            double centerX, double centerY,
            double width, double height) override;

        void DrawPath(const Projection& projection,
            const MapParameter& parameter,
            const Color& color,
            double width,
            const std::vector<double>& dash,
            LineStyle::CapStyle startCap,
            LineStyle::CapStyle endCap,
            size_t transStart, size_t transEnd) override;

        void DrawWayOutline(const StyleConfig& styleConfig,
            const Projection& projection,
            const MapParameter& parameter,
            const WayData& data);

        void DrawWay(const StyleConfig& styleConfig,
            const Projection& projection,
            const MapParameter& parameter,
            const WayData& data) override;

        void DrawContourSymbol(const Projection& projection,
            const MapParameter& parameter,
            const Symbol& symbol,
            double space,
            size_t transStart, size_t transEnd) override;

        void DrawArea(const Projection& projection,
            const MapParameter& parameter,
            const AreaData& area) override;

    public:
        bool DrawMap(const Projection& projection, const MapParameter& parameter, const MapData& data, HDC hdc, RECT paintRect);

        explicit MapPainterGDI(const StyleConfigRef& styleConfig);
        ~MapPainterGDI() override;
    };
}

#endif