PdfFontMetricsStandard14.h

// SPDX-FileCopyrightText: 2010 Dominik Seichter <domseichter@web.de>
// SPDX-FileCopyrightText: 2020 Francesco Pretto <ceztko@gmail.com>
// SPDX-License-Identifier: LGPL-2.0-or-later OR MPL-2.0
 
#ifndef PDF_FONT_METRICS_STANDARD14_H
#define PDF_FONT_METRICS_STANDARD14_H
 
#include "PdfDeclarations.h"
 
#include "PdfFontMetrics.h"
#include <podofo/auxiliary/Rect.h>
 
namespace PoDoFo {
 
struct Standard14FontData;
 
class PODOFO_API PdfFontMetricsStandard14 final : public PdfFontMetricsBase
{
    friend class PdfFont;
private:
    PdfFontMetricsStandard14(PdfStandard14FontType fontType,
        const Standard14FontData& data,
        GlyphMetricsListConstPtr parsedWidths = { });
 
public:
    static std::unique_ptr<const PdfFontMetricsStandard14> Create(
        PdfStandard14FontType fontType);
    static std::unique_ptr<const PdfFontMetricsStandard14> Create(
        PdfStandard14FontType fontType, const PdfObject& fontObj);
 
private:
    static std::unique_ptr<const PdfFontMetricsStandard14> Create(
        PdfStandard14FontType fontType, GlyphMetricsListConstPtr&& parsedWidths);
 
public:
    bool HasUnicodeMapping() const override;
 
    bool TryGetGID(char32_t codePoint, unsigned& gid) const override;
 
    bool TryGetFlags(PdfFontDescriptorFlags& value) const override;
 
    bool TryGetBoundingBox(Corners& value) const override;
 
    bool TryGetItalicAngle(double& value) const override;
 
    bool TryGetAscent(double& value) const override;
 
    bool TryGetDescent(double& value) const override;
 
    bool TryGetCapHeight(double& value) const override;
 
    bool TryGetStemV(double& value) const override;
 
    double GetDefaultWidthRaw() const override;
 
    double GetLineSpacing() const override;
 
    double GetUnderlineThickness() const override;
 
    double GetUnderlinePosition() const override;
 
    double GetStrikeThroughPosition() const override;
 
    double GetStrikeThroughThickness() const override;
 
    std::string_view GetFontName() const override;
 
    std::string_view GetFontFamilyName() const override;
 
    PdfFontStretch GetFontStretch() const override;
 
    int GetWeightRaw() const override;
 
    double GetLeadingRaw() const override;
 
    double GetXHeightRaw() const override;
 
    double GetStemHRaw() const override;
 
    double GetAvgWidthRaw() const override;
 
    double GetMaxWidthRaw() const override;
 
    PdfFontFileType GetFontFileType() const override;
 
    bool IsStandard14FontMetrics(PdfStandard14FontType& std14Font) const override;
 
    unsigned GetFontFileLength1() const override;
 
    unsigned GetFontFileLength2() const override;
 
    unsigned GetFontFileLength3() const override;
 
    inline const Standard14FontData& GetRawData() const { return m_data; }
 
protected:
    std::string_view GetBaseFontName() const override;
 
    unsigned GetGlyphCountFontProgram() const override;
 
    bool TryGetGlyphWidthFontProgram(unsigned gid, double& width) const override;
 
    PdfFontType GetFontType() const override;
 
    bool getIsItalicHint() const override;
 
    bool getIsBoldHint() const override;
 
    datahandle getFontFileDataHandle() const override;
 
private:
    static std::unique_ptr<PdfFontMetricsStandard14> create(
        PdfStandard14FontType fontType, const PdfObject* fontObj = nullptr);
 
public:
    static std::shared_ptr<const PdfFontMetricsStandard14> GetInstance(PdfStandard14FontType std14Font);
 
private:
    PdfStandard14FontType m_Std14FontType;
    const Standard14FontData& m_data;
 
    double m_LineSpacing;
    double m_UnderlineThickness;
    double m_StrikeThroughThickness;
};
 
}
 
#endif // PDF_FONT_METRICS_STANDARD14_H