84 lines
2.8 KiB
C++
84 lines
2.8 KiB
C++
// Copyright 2014 The PDFium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#ifndef XFA_FGAS_FONT_CFGAS_GEFONT_H_
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#define XFA_FGAS_FONT_CFGAS_GEFONT_H_
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#include <stdint.h>
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#include <map>
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#include <memory>
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#include <utility>
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#include <vector>
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#include "build/build_config.h"
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#include "core/fxcrt/fx_codepage_forward.h"
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#include "core/fxcrt/fx_coordinates.h"
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#include "core/fxcrt/fx_string.h"
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#include "core/fxcrt/maybe_owned.h"
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#include "core/fxcrt/retain_ptr.h"
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#include "third_party/abseil-cpp/absl/types/optional.h"
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class CFX_Font;
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class CFX_UnicodeEncodingEx;
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class CPDF_Document;
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class CPDF_Font;
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class CFGAS_GEFont final : public Retainable {
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public:
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CONSTRUCT_VIA_MAKE_RETAIN;
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static RetainPtr<CFGAS_GEFont> LoadFont(const wchar_t* pszFontFamily,
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uint32_t dwFontStyles,
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FX_CodePage wCodePage);
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static RetainPtr<CFGAS_GEFont> LoadFont(RetainPtr<CPDF_Font> pFont);
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static RetainPtr<CFGAS_GEFont> LoadFont(std::unique_ptr<CFX_Font> pFont);
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static RetainPtr<CFGAS_GEFont> LoadStockFont(CPDF_Document* pDoc,
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const ByteString& font_family);
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uint32_t GetFontStyles() const;
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absl::optional<uint16_t> GetCharWidth(wchar_t wUnicode);
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int32_t GetGlyphIndex(wchar_t wUnicode);
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int32_t GetAscent() const;
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int32_t GetDescent() const;
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absl::optional<FX_RECT> GetCharBBox(wchar_t wUnicode);
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RetainPtr<CFGAS_GEFont> GetSubstFont(int32_t iGlyphIndex);
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CFX_Font* GetDevFont() const { return m_pFont.Get(); }
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void SetLogicalFontStyle(uint32_t dwLogFontStyle) {
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m_dwLogFontStyle = dwLogFontStyle;
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}
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private:
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CFGAS_GEFont();
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~CFGAS_GEFont() override;
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#if BUILDFLAG(IS_WIN)
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bool LoadFontInternal(const wchar_t* pszFontFamily,
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uint32_t dwFontStyles,
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FX_CodePage wCodePage);
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#endif
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bool LoadFontInternal(std::unique_ptr<CFX_Font> pInternalFont);
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bool LoadFontInternal(RetainPtr<CPDF_Font> pPDFFont);
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bool InitFont();
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std::pair<int32_t, RetainPtr<CFGAS_GEFont>> GetGlyphIndexAndFont(
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wchar_t wUnicode,
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bool bRecursive);
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WideString GetFamilyName() const;
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absl::optional<uint32_t> m_dwLogFontStyle;
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RetainPtr<CPDF_Font> m_pPDFFont; // Must come before |m_pFont|.
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MaybeOwned<CFX_Font> m_pFont; // Must come before |m_pFontEncoding|.
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std::unique_ptr<CFX_UnicodeEncodingEx> m_pFontEncoding;
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std::map<wchar_t, absl::optional<uint16_t>> m_CharWidthMap;
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std::map<wchar_t, FX_RECT> m_BBoxMap;
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std::vector<RetainPtr<CFGAS_GEFont>> m_SubstFonts;
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std::map<wchar_t, RetainPtr<CFGAS_GEFont>> m_FontMapper;
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};
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#endif // XFA_FGAS_FONT_CFGAS_GEFONT_H_
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