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// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#ifndef XFA_FGAS_FONT_CFGAS_GEFONT_H_
#define XFA_FGAS_FONT_CFGAS_GEFONT_H_
#include <map>
#include <memory>
#include <vector>
#include "core/fxcrt/cfx_retain_ptr.h"
#include "core/fxcrt/cfx_unowned_ptr.h"
#include "core/fxcrt/fx_memory.h"
#include "xfa/fgas/font/cfgas_fontmgr.h"
#include "xfa/fgas/font/cfgas_pdffontmgr.h"
#define FXFONT_SUBST_ITALIC 0x02
class CFGAS_FontMgr;
class CFX_UnicodeEncoding;
class CFGAS_GEFont : public CFX_Retainable {
public:
template <typename T>
friend class CFX_RetainPtr;
template <typename T, typename... Args>
friend CFX_RetainPtr<T> pdfium::MakeRetain(Args&&... args);
static CFX_RetainPtr<CFGAS_GEFont> LoadFont(const wchar_t* pszFontFamily,
uint32_t dwFontStyles,
uint16_t wCodePage,
CFGAS_FontMgr* pFontMgr);
static CFX_RetainPtr<CFGAS_GEFont> LoadFont(CFX_Font* pExternalFont,
CFGAS_FontMgr* pFontMgr);
static CFX_RetainPtr<CFGAS_GEFont> LoadFont(
std::unique_ptr<CFX_Font> pInternalFont,
CFGAS_FontMgr* pFontMgr);
CFX_RetainPtr<CFGAS_GEFont> Derive(uint32_t dwFontStyles,
uint16_t wCodePage = 0);
uint32_t GetFontStyles() const;
bool GetCharWidth(wchar_t wUnicode, int32_t& iWidth, bool bCharCode);
int32_t GetGlyphIndex(wchar_t wUnicode, bool bCharCode = false);
int32_t GetAscent() const;
int32_t GetDescent() const;
bool GetCharBBox(wchar_t wUnicode, CFX_Rect* bbox, bool bCharCode = false);
bool GetBBox(CFX_Rect* bbox);
CFX_RetainPtr<CFGAS_GEFont> GetSubstFont(int32_t iGlyphIndex);
CFX_Font* GetDevFont() const { return m_pFont; }
void SetFontProvider(CFGAS_PDFFontMgr* pProvider) {
m_pProvider.Reset(pProvider);
}
#if _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_
void SetLogicalFontStyle(uint32_t dwLogFontStyle) {
m_bUseLogFontStyle = true;
m_dwLogFontStyle = dwLogFontStyle;
}
#endif
private:
explicit CFGAS_GEFont(CFGAS_FontMgr* pFontMgr);
CFGAS_GEFont(const CFX_RetainPtr<CFGAS_GEFont>& src, uint32_t dwFontStyles);
~CFGAS_GEFont() override;
#if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
bool LoadFontInternal(const wchar_t* pszFontFamily,
uint32_t dwFontStyles,
uint16_t wCodePage);
bool LoadFontInternal(const uint8_t* pBuffer, int32_t length);
bool LoadFontInternal(
const CFX_RetainPtr<CFX_SeekableStreamProxy>& pFontStream,
bool bSaveStream);
#endif
bool LoadFontInternal(CFX_Font* pExternalFont);
bool LoadFontInternal(std::unique_ptr<CFX_Font> pInternalFont);
bool InitFont();
bool GetCharBBoxInternal(wchar_t wUnicode,
CFX_Rect* bbox,
bool bRecursive,
bool bCharCode = false);
bool GetCharWidthInternal(wchar_t wUnicode,
int32_t& iWidth,
bool bRecursive,
bool bCharCode);
int32_t GetGlyphIndex(wchar_t wUnicode,
bool bRecursive,
CFX_RetainPtr<CFGAS_GEFont>* ppFont,
bool bCharCode = false);
WideString GetFamilyName() const;
#if _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_
bool m_bUseLogFontStyle;
uint32_t m_dwLogFontStyle;
#endif
CFX_Font* m_pFont;
bool m_bExternalFont;
CFX_RetainPtr<CFGAS_GEFont> m_pSrcFont; // Only set by ctor, so no cycles.
CFGAS_FontMgr::ObservedPtr m_pFontMgr;
CFGAS_PDFFontMgr::ObservedPtr m_pProvider;
CFX_RetainPtr<CFX_SeekableStreamProxy> m_pStream;
CFX_RetainPtr<IFX_SeekableReadStream> m_pFileRead;
std::unique_ptr<CFX_UnicodeEncoding> m_pFontEncoding;
std::map<wchar_t, int32_t> m_CharWidthMap;
std::map<wchar_t, CFX_Rect> m_BBoxMap;
std::vector<CFX_RetainPtr<CFGAS_GEFont>> m_SubstFonts;
std::map<wchar_t, CFX_RetainPtr<CFGAS_GEFont>> m_FontMapper;
};
#endif // XFA_FGAS_FONT_CFGAS_GEFONT_H_
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