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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_FGAS_GEFONT_H_
#define XFA_FGAS_FONT_FGAS_GEFONT_H_
#include <map>
#include "core/fxcrt/fx_memory.h"
#include "xfa/fgas/crt/fgas_utils.h"
#include "xfa/fgas/font/fgas_font.h"
#define FXFONT_SUBST_ITALIC 0x02
class CFX_UnicodeEncoding;
class CXFA_PDFFontMgr;
class CFGAS_GEFont {
public:
static CFGAS_GEFont* LoadFont(const FX_WCHAR* pszFontFamily,
uint32_t dwFontStyles,
uint16_t wCodePage,
IFGAS_FontMgr* pFontMgr);
static CFGAS_GEFont* LoadFont(CFX_Font* pExternalFont,
IFGAS_FontMgr* pFontMgr);
static CFGAS_GEFont* LoadFont(std::unique_ptr<CFX_Font> pInternalFont,
IFGAS_FontMgr* pFontMgr);
#if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
static CFGAS_GEFont* LoadFont(const uint8_t* pBuffer,
int32_t iLength,
IFGAS_FontMgr* pFontMgr);
static CFGAS_GEFont* LoadFont(IFX_Stream* pFontStream,
IFGAS_FontMgr* pFontMgr,
bool bSaveStream);
#endif
~CFGAS_GEFont();
void Release();
CFGAS_GEFont* Retain();
CFGAS_GEFont* Derive(uint32_t dwFontStyles, uint16_t wCodePage = 0);
void GetFamilyName(CFX_WideString& wsFamily) const;
uint32_t GetFontStyles() const;
bool GetCharWidth(FX_WCHAR wUnicode, int32_t& iWidth, bool bCharCode);
int32_t GetGlyphIndex(FX_WCHAR wUnicode, bool bCharCode = false);
int32_t GetAscent() const;
int32_t GetDescent() const;
bool GetCharBBox(FX_WCHAR wUnicode, CFX_Rect& bbox, bool bCharCode = false);
bool GetBBox(CFX_Rect& bbox);
int32_t GetItalicAngle() const;
void Reset();
CFGAS_GEFont* GetSubstFont(int32_t iGlyphIndex) const;
CFX_Font* GetDevFont() const { return m_pFont; }
void SetFontProvider(CXFA_PDFFontMgr* pProvider) { m_pProvider = pProvider; }
#if _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_
void SetLogicalFontStyle(uint32_t dwLogFontStyle) {
m_bUseLogFontStyle = true;
m_dwLogFontStyle = dwLogFontStyle;
}
#endif
protected:
explicit CFGAS_GEFont(IFGAS_FontMgr* pFontMgr);
CFGAS_GEFont(CFGAS_GEFont* src, uint32_t dwFontStyles);
#if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
bool LoadFontInternal(const FX_WCHAR* pszFontFamily,
uint32_t dwFontStyles,
uint16_t wCodePage);
bool LoadFontInternal(const uint8_t* pBuffer, int32_t length);
bool LoadFontInternal(IFX_Stream* pFontStream, bool bSaveStream);
#endif
bool LoadFontInternal(CFX_Font* pExternalFont);
bool LoadFontInternal(std::unique_ptr<CFX_Font> pInternalFont);
bool InitFont();
bool GetCharBBoxInternal(FX_WCHAR wUnicode,
CFX_Rect& bbox,
bool bRecursive,
bool bCharCode = false);
bool GetCharWidthInternal(FX_WCHAR wUnicode,
int32_t& iWidth,
bool bRecursive,
bool bCharCode);
int32_t GetGlyphIndex(FX_WCHAR wUnicode,
bool bRecursive,
CFGAS_GEFont** ppFont,
bool bCharCode = false);
#if _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_
bool m_bUseLogFontStyle;
uint32_t m_dwLogFontStyle;
#endif
CFX_Font* m_pFont;
CFGAS_GEFont* const m_pSrcFont;
IFGAS_FontMgr* const m_pFontMgr;
int32_t m_iRefCount;
bool m_bExternalFont;
std::unique_ptr<IFX_Stream, ReleaseDeleter<IFX_Stream>> m_pStream;
std::unique_ptr<IFX_SeekableReadStream,
ReleaseDeleter<IFX_SeekableReadStream>>
m_pFileRead;
std::unique_ptr<CFX_UnicodeEncoding> m_pFontEncoding;
std::unique_ptr<CFX_DiscreteArrayTemplate<uint16_t>> m_pCharWidthMap;
std::unique_ptr<CFX_MassArrayTemplate<CFX_Rect>> m_pRectArray;
std::unique_ptr<CFX_MapPtrToPtr> m_pBBoxMap;
CXFA_PDFFontMgr* m_pProvider; // not owned.
CFX_ArrayTemplate<CFGAS_GEFont*> m_SubstFonts;
std::map<FX_WCHAR, CFGAS_GEFont*> m_FontMapper;
};
#endif // XFA_FGAS_FONT_FGAS_GEFONT_H_
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