1 // Copyright 2014 PDFium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6 7 #include "../include/fsdk_define.h" 8 #include "../include/fpdf_sysfontinfo.h" 9 10 class CSysFontInfo_Ext : public IFX_SystemFontInfo 11 { 12 public: 13 FPDF_SYSFONTINFO* m_pInfo; 14 15 virtual void Release() 16 { 17 if (m_pInfo->Release) 18 m_pInfo->Release(m_pInfo); 19 delete this; 20 } 21 22 virtual FX_BOOL EnumFontList(CFX_FontMapper* pMapper) 23 { 24 if (m_pInfo->EnumFonts) { 25 m_pInfo->EnumFonts(m_pInfo, pMapper); 26 return TRUE; 27 } 28 return FALSE; 29 } 30 31 virtual void* MapFont(int weight, FX_BOOL bItalic, int charset, int pitch_family, FX_LPCSTR family, FX_BOOL& bExact) 32 { 33 if (m_pInfo->MapFont) 34 return m_pInfo->MapFont(m_pInfo, weight, bItalic, charset, pitch_family, family, &bExact); 35 return NULL; 36 } 37 38 virtual void* GetFont(FX_LPCSTR family) 39 { 40 if (m_pInfo->GetFont) 41 return m_pInfo->GetFont(m_pInfo, family); 42 return NULL; 43 } 44 45 virtual FX_DWORD GetFontData(void* hFont, FX_DWORD table, FX_LPBYTE buffer, FX_DWORD size) 46 { 47 if (m_pInfo->GetFontData) 48 return m_pInfo->GetFontData(m_pInfo, hFont, table, buffer, size); 49 return 0; 50 } 51 52 virtual FX_BOOL GetFaceName(void* hFont, CFX_ByteString& name) 53 { 54 if (m_pInfo->GetFaceName == NULL) return FALSE; 55 FX_DWORD size = m_pInfo->GetFaceName(m_pInfo, hFont, NULL, 0); 56 if (size == 0) return FALSE; 57 char* buffer = FX_Alloc(char, size); 58 size = m_pInfo->GetFaceName(m_pInfo, hFont, buffer, size); 59 name = CFX_ByteString(buffer, size); 60 FX_Free(buffer); 61 return TRUE; 62 } 63 64 virtual FX_BOOL GetFontCharset(void* hFont, int& charset) 65 { 66 if (m_pInfo->GetFontCharset) { 67 charset = m_pInfo->GetFontCharset(m_pInfo, hFont); 68 return TRUE; 69 } 70 return FALSE; 71 } 72 73 virtual void DeleteFont(void* hFont) 74 { 75 if (m_pInfo->DeleteFont) 76 m_pInfo->DeleteFont(m_pInfo, hFont); 77 } 78 }; 79 80 DLLEXPORT void STDCALL FPDF_AddInstalledFont(void* mapper, const char* name, int charset) 81 { 82 ((CFX_FontMapper*)mapper)->AddInstalledFont(name, charset); 83 } 84 85 DLLEXPORT void STDCALL FPDF_SetSystemFontInfo(FPDF_SYSFONTINFO* pFontInfoExt) 86 { 87 if (pFontInfoExt->version != 1) return; 88 89 CSysFontInfo_Ext* pFontInfo = FX_NEW CSysFontInfo_Ext; 90 pFontInfo->m_pInfo = pFontInfoExt; 91 CFX_GEModule::Get()->GetFontMgr()->SetSystemFontInfo(pFontInfo); 92 } 93 94 struct FPDF_SYSFONTINFO_DEFAULT : public FPDF_SYSFONTINFO 95 { 96 IFX_SystemFontInfo* m_pFontInfo; 97 }; 98 99 static void DefaultRelease(struct _FPDF_SYSFONTINFO* pThis) 100 { 101 ((FPDF_SYSFONTINFO_DEFAULT*)pThis)->m_pFontInfo->Release(); 102 } 103 104 static void DefaultEnumFonts(struct _FPDF_SYSFONTINFO* pThis, void* pMapper) 105 { 106 ((FPDF_SYSFONTINFO_DEFAULT*)pThis)->m_pFontInfo->EnumFontList((CFX_FontMapper*)pMapper); 107 } 108 109 static void* DefaultMapFont(struct _FPDF_SYSFONTINFO* pThis, int weight, int bItalic, int charset, int pitch_family, const char* family, int* bExact) 110 { 111 return ((FPDF_SYSFONTINFO_DEFAULT*)pThis)->m_pFontInfo->MapFont(weight, bItalic, charset, pitch_family, family, *bExact); 112 } 113 114 void* DefaultGetFont(struct _FPDF_SYSFONTINFO* pThis, const char* family) 115 { 116 return ((FPDF_SYSFONTINFO_DEFAULT*)pThis)->m_pFontInfo->GetFont(family); 117 } 118 119 static unsigned long DefaultGetFontData(struct _FPDF_SYSFONTINFO* pThis, void* hFont, 120 unsigned int table, unsigned char* buffer, unsigned long buf_size) 121 { 122 return ((FPDF_SYSFONTINFO_DEFAULT*)pThis)->m_pFontInfo->GetFontData(hFont, table, buffer, buf_size); 123 } 124 125 static unsigned long DefaultGetFaceName(struct _FPDF_SYSFONTINFO* pThis, void* hFont, char* buffer, unsigned long buf_size) 126 { 127 CFX_ByteString name; 128 if (!((FPDF_SYSFONTINFO_DEFAULT*)pThis)->m_pFontInfo->GetFaceName(hFont, name)) return 0; 129 if (name.GetLength() >= (long)buf_size) return name.GetLength() + 1; 130 FXSYS_strcpy(buffer, name); 131 return name.GetLength() + 1; 132 } 133 134 static int DefaultGetFontCharset(struct _FPDF_SYSFONTINFO* pThis, void* hFont) 135 { 136 int charset; 137 if (!((FPDF_SYSFONTINFO_DEFAULT*)pThis)->m_pFontInfo->GetFontCharset(hFont, charset)) return 0; 138 return charset; 139 } 140 141 static void DefaultDeleteFont(struct _FPDF_SYSFONTINFO* pThis, void* hFont) 142 { 143 ((FPDF_SYSFONTINFO_DEFAULT*)pThis)->m_pFontInfo->DeleteFont(hFont); 144 } 145 146 DLLEXPORT FPDF_SYSFONTINFO* STDCALL FPDF_GetDefaultSystemFontInfo() 147 { 148 IFX_SystemFontInfo* pFontInfo = IFX_SystemFontInfo::CreateDefault(); 149 if (pFontInfo == NULL) return NULL; 150 151 FPDF_SYSFONTINFO_DEFAULT* pFontInfoExt = FX_Alloc(FPDF_SYSFONTINFO_DEFAULT, 1); 152 pFontInfoExt->DeleteFont = DefaultDeleteFont; 153 pFontInfoExt->EnumFonts = DefaultEnumFonts; 154 pFontInfoExt->GetFaceName = DefaultGetFaceName; 155 pFontInfoExt->GetFont = DefaultGetFont; 156 pFontInfoExt->GetFontCharset = DefaultGetFontCharset; 157 pFontInfoExt->GetFontData = DefaultGetFontData; 158 pFontInfoExt->MapFont = DefaultMapFont; 159 pFontInfoExt->Release = DefaultRelease; 160 pFontInfoExt->version = 1; 161 pFontInfoExt->m_pFontInfo = pFontInfo; 162 return pFontInfoExt; 163 } 164
