diff options
Diffstat (limited to 'core/src/fxge/ge/fx_ge_font.cpp')
| -rw-r--r-- | core/src/fxge/ge/fx_ge_font.cpp | 555 |
1 files changed, 0 insertions, 555 deletions
diff --git a/core/src/fxge/ge/fx_ge_font.cpp b/core/src/fxge/ge/fx_ge_font.cpp deleted file mode 100644 index 672c28d86b..0000000000 --- a/core/src/fxge/ge/fx_ge_font.cpp +++ /dev/null @@ -1,555 +0,0 @@ -// 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 - -#include "core/include/fxge/fx_freetype.h" -#include "core/include/fxge/fx_ge.h" -#include "core/src/fxge/ge/fx_text_int.h" - -#define EM_ADJUST(em, a) (em == 0 ? (a) : (a)*1000 / em) - -#ifdef PDF_ENABLE_XFA -extern void _FPDFAPI_GetInternalFontData(int id1, - const uint8_t*& data, - FX_DWORD& size); -#endif // PDF_ENABLE_XFA - -namespace { - -#ifdef PDF_ENABLE_XFA -const FX_DWORD g_EncodingID[] = { - FXFM_ENCODING_MS_SYMBOL, - FXFM_ENCODING_UNICODE, - FXFM_ENCODING_MS_SJIS, - FXFM_ENCODING_MS_GB2312, - FXFM_ENCODING_MS_BIG5, - FXFM_ENCODING_MS_WANSUNG, - FXFM_ENCODING_MS_JOHAB, - FXFM_ENCODING_ADOBE_STANDARD, - FXFM_ENCODING_ADOBE_EXPERT, - FXFM_ENCODING_ADOBE_CUSTOM, - FXFM_ENCODING_ADOBE_LATIN_1, - FXFM_ENCODING_OLD_LATIN_2, - FXFM_ENCODING_APPLE_ROMAN, -}; - -CFX_UnicodeEncodingEx* _FXFM_CreateFontEncoding(CFX_Font* pFont, - FX_DWORD nEncodingID) { - if (FXFT_Select_Charmap(pFont->GetFace(), nEncodingID)) - return nullptr; - return new CFX_UnicodeEncodingEx(pFont, nEncodingID); -} -#endif // PDF_ENABLE_XFA - -FXFT_Face FT_LoadFont(const uint8_t* pData, int size) { - return CFX_GEModule::Get()->GetFontMgr()->GetFixedFace(pData, size, 0); -} - -} // namespace - -CFX_Font::CFX_Font() { - m_pSubstFont = NULL; - m_Face = NULL; - m_bEmbedded = FALSE; - m_bVertical = FALSE; - m_pFontData = NULL; - m_pFontDataAllocation = NULL; - m_dwSize = 0; - m_pGsubData = NULL; - m_pPlatformFont = NULL; - m_pPlatformFontCollection = NULL; - m_pDwFont = NULL; - m_hHandle = NULL; - m_bDwLoaded = FALSE; -#ifdef PDF_ENABLE_XFA - m_bLogic = FALSE; - m_pOwnedStream = NULL; -#endif // PDF_ENABLE_XFA -} - -#ifdef PDF_ENABLE_XFA -FX_BOOL CFX_Font::LoadClone(const CFX_Font* pFont) { - if (pFont == NULL) { - return FALSE; - } - m_bLogic = TRUE; - if (pFont->m_pSubstFont) { - m_pSubstFont = new CFX_SubstFont; - m_pSubstFont->m_Charset = pFont->m_pSubstFont->m_Charset; - m_pSubstFont->m_ExtHandle = pFont->m_pSubstFont->m_ExtHandle; - m_pSubstFont->m_SubstFlags = pFont->m_pSubstFont->m_SubstFlags; - m_pSubstFont->m_Weight = pFont->m_pSubstFont->m_Weight; - m_pSubstFont->m_Family = pFont->m_pSubstFont->m_Family; - m_pSubstFont->m_ItalicAngle = pFont->m_pSubstFont->m_ItalicAngle; - } - if (pFont->m_OtfFontData.GetSize()) { - m_OtfFontData.AttachData(pFont->m_OtfFontData.GetBuffer(), - pFont->m_OtfFontData.GetSize()); - } - m_Face = pFont->m_Face; - m_bEmbedded = pFont->m_bEmbedded; - m_bVertical = pFont->m_bVertical; - m_dwSize = pFont->m_dwSize; - m_pFontData = pFont->m_pFontData; - m_pGsubData = pFont->m_pGsubData; - m_pPlatformFont = pFont->m_pPlatformFont; - m_pPlatformFontCollection = pFont->m_pPlatformFontCollection; - m_pDwFont = pFont->m_pDwFont; - m_hHandle = pFont->m_hHandle; - m_bDwLoaded = pFont->m_bDwLoaded; - m_pOwnedStream = pFont->m_pOwnedStream; - return TRUE; -} -#endif // PDF_ENABLE_XFA - -CFX_Font::~CFX_Font() { - delete m_pSubstFont; - FX_Free(m_pFontDataAllocation); -#ifdef PDF_ENABLE_XFA - if (m_bLogic) { - m_OtfFontData.DetachBuffer(); - return; - } -#endif // PDF_ENABLE_XFA - if (m_Face) { -#ifndef PDF_ENABLE_XFA - if (FXFT_Get_Face_External_Stream(m_Face)) { - FXFT_Clear_Face_External_Stream(m_Face); - } -#endif // PDF_ENABLE_XFA - if (m_bEmbedded) { - DeleteFace(); - } else { - CFX_GEModule::Get()->GetFontMgr()->ReleaseFace(m_Face); - } - } -#ifdef PDF_ENABLE_XFA - FX_Free(m_pOwnedStream); -#endif // PDF_ENABLE_XFA - FX_Free(m_pGsubData); -#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ - ReleasePlatformResource(); -#endif -} -void CFX_Font::DeleteFace() { - FXFT_Done_Face(m_Face); - m_Face = NULL; -} -void CFX_Font::LoadSubst(const CFX_ByteString& face_name, - FX_BOOL bTrueType, - FX_DWORD flags, - int weight, - int italic_angle, - int CharsetCP, - FX_BOOL bVertical) { - m_bEmbedded = FALSE; - m_bVertical = bVertical; - m_pSubstFont = new CFX_SubstFont; - m_Face = CFX_GEModule::Get()->GetFontMgr()->FindSubstFont( - face_name, bTrueType, flags, weight, italic_angle, CharsetCP, - m_pSubstFont); -#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ - if (m_pSubstFont->m_ExtHandle) { - m_pPlatformFont = m_pSubstFont->m_ExtHandle; - m_pSubstFont->m_ExtHandle = NULL; - } -#endif - if (m_Face) { - m_pFontData = FXFT_Get_Face_Stream_Base(m_Face); - m_dwSize = FXFT_Get_Face_Stream_Size(m_Face); - } -} -#ifdef PDF_ENABLE_XFA -extern "C" { -unsigned long _FTStreamRead(FXFT_Stream stream, - unsigned long offset, - unsigned char* buffer, - unsigned long count) { - if (count == 0) { - return 0; - } - IFX_FileRead* pFile = (IFX_FileRead*)stream->descriptor.pointer; - int res = pFile->ReadBlock(buffer, offset, count); - if (res) { - return count; - } - return 0; -} -void _FTStreamClose(FXFT_Stream stream) {} -}; -FX_BOOL _LoadFile(FXFT_Library library, - FXFT_Face* Face, - IFX_FileRead* pFile, - FXFT_Stream* stream, - int32_t faceIndex = 0) { - FXFT_Stream stream1 = (FXFT_Stream)FX_Alloc(uint8_t, sizeof(FXFT_StreamRec)); - stream1->base = NULL; - stream1->size = (unsigned long)pFile->GetSize(); - stream1->pos = 0; - stream1->descriptor.pointer = pFile; - stream1->close = _FTStreamClose; - stream1->read = _FTStreamRead; - FXFT_Open_Args args; - args.flags = FT_OPEN_STREAM; - args.stream = stream1; - if (FXFT_Open_Face(library, &args, faceIndex, Face)) { - FX_Free(stream1); - return FALSE; - } - if (stream) { - *stream = stream1; - } - return TRUE; -} - -FX_BOOL CFX_Font::LoadFile(IFX_FileRead* pFile, - int nFaceIndex, - int* pFaceCount) { - m_bEmbedded = FALSE; - - CFX_FontMgr* pFontMgr = CFX_GEModule::Get()->GetFontMgr(); - pFontMgr->InitFTLibrary(); - FXFT_Library library = pFontMgr->GetFTLibrary(); - - FXFT_Stream stream = nullptr; - if (!_LoadFile(library, &m_Face, pFile, &stream, nFaceIndex)) - return FALSE; - - if (pFaceCount) - *pFaceCount = (int)m_Face->num_faces; - m_pOwnedStream = stream; - FXFT_Set_Pixel_Sizes(m_Face, 0, 64); - return TRUE; -} -#endif // PDF_ENABLE_XFA - -int CFX_Font::GetGlyphWidth(FX_DWORD glyph_index) { - if (!m_Face) { - return 0; - } - if (m_pSubstFont && (m_pSubstFont->m_SubstFlags & FXFONT_SUBST_MM)) { - AdjustMMParams(glyph_index, 0, 0); - } - int err = FXFT_Load_Glyph( - m_Face, glyph_index, - FXFT_LOAD_NO_SCALE | FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH); - if (err) { - return 0; - } - int width = EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), - FXFT_Get_Glyph_HoriAdvance(m_Face)); - return width; -} - -FX_BOOL CFX_Font::LoadEmbedded(const uint8_t* data, FX_DWORD size) { - m_pFontDataAllocation = FX_Alloc(uint8_t, size); - FXSYS_memcpy(m_pFontDataAllocation, data, size); - m_Face = FT_LoadFont(m_pFontDataAllocation, size); - m_pFontData = m_pFontDataAllocation; - m_bEmbedded = TRUE; - m_dwSize = size; - return m_Face != NULL; -} - -FX_BOOL CFX_Font::IsTTFont() const { - if (!m_Face) - return FALSE; - return FXFT_Is_Face_TT_OT(m_Face) == FXFT_FACE_FLAG_SFNT; -} - -int CFX_Font::GetAscent() const { - if (!m_Face) - return 0; - return EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), - FXFT_Get_Face_Ascender(m_Face)); -} - -int CFX_Font::GetDescent() const { - if (!m_Face) - return 0; - return EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), - FXFT_Get_Face_Descender(m_Face)); -} - -FX_BOOL CFX_Font::GetGlyphBBox(FX_DWORD glyph_index, FX_RECT& bbox) { - if (!m_Face) - return FALSE; - - if (FXFT_Is_Face_Tricky(m_Face)) { - int error = FXFT_Set_Char_Size(m_Face, 0, 1000 * 64, 72, 72); - if (error) { - return FALSE; - } - error = FXFT_Load_Glyph(m_Face, glyph_index, - FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH); - if (error) { - return FALSE; - } - FXFT_BBox cbox; - FT_Glyph glyph; - error = FXFT_Get_Glyph(((FXFT_Face)m_Face)->glyph, &glyph); - if (error) { - return FALSE; - } - FXFT_Glyph_Get_CBox(glyph, FXFT_GLYPH_BBOX_PIXELS, &cbox); - int pixel_size_x = ((FXFT_Face)m_Face)->size->metrics.x_ppem, - pixel_size_y = ((FXFT_Face)m_Face)->size->metrics.y_ppem; - if (pixel_size_x == 0 || pixel_size_y == 0) { - bbox.left = cbox.xMin; - bbox.right = cbox.xMax; - bbox.top = cbox.yMax; - bbox.bottom = cbox.yMin; - } else { - bbox.left = cbox.xMin * 1000 / pixel_size_x; - bbox.right = cbox.xMax * 1000 / pixel_size_x; - bbox.top = cbox.yMax * 1000 / pixel_size_y; - bbox.bottom = cbox.yMin * 1000 / pixel_size_y; - } - if (bbox.top > FXFT_Get_Face_Ascender(m_Face)) { - bbox.top = FXFT_Get_Face_Ascender(m_Face); - } - if (bbox.bottom < FXFT_Get_Face_Descender(m_Face)) { - bbox.bottom = FXFT_Get_Face_Descender(m_Face); - } - FT_Done_Glyph(glyph); - return FXFT_Set_Pixel_Sizes(m_Face, 0, 64) == 0; - } - if (FXFT_Load_Glyph( - m_Face, glyph_index, - FXFT_LOAD_NO_SCALE | FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH)) { - return FALSE; - } - int em = FXFT_Get_Face_UnitsPerEM(m_Face); - if (em == 0) { - bbox.left = FXFT_Get_Glyph_HoriBearingX(m_Face); - bbox.bottom = FXFT_Get_Glyph_HoriBearingY(m_Face); - bbox.top = bbox.bottom - FXFT_Get_Glyph_Height(m_Face); - bbox.right = bbox.left + FXFT_Get_Glyph_Width(m_Face); - } else { - bbox.left = FXFT_Get_Glyph_HoriBearingX(m_Face) * 1000 / em; - bbox.top = - (FXFT_Get_Glyph_HoriBearingY(m_Face) - FXFT_Get_Glyph_Height(m_Face)) * - 1000 / em; - bbox.right = - (FXFT_Get_Glyph_HoriBearingX(m_Face) + FXFT_Get_Glyph_Width(m_Face)) * - 1000 / em; - bbox.bottom = (FXFT_Get_Glyph_HoriBearingY(m_Face)) * 1000 / em; - } - return TRUE; -} - -FX_BOOL CFX_Font::IsItalic() const { - if (!m_Face) - return FALSE; - - FX_BOOL ret = FXFT_Is_Face_Italic(m_Face) == FXFT_STYLE_FLAG_ITALIC; - if (!ret) { - CFX_ByteString str(FXFT_Get_Face_Style_Name(m_Face)); - str.MakeLower(); - if (str.Find("italic") != -1) { - ret = TRUE; - } - } - return ret; -} - -FX_BOOL CFX_Font::IsBold() const { - if (!m_Face) - return FALSE; - return FXFT_Is_Face_Bold(m_Face) == FXFT_STYLE_FLAG_BOLD; -} - -FX_BOOL CFX_Font::IsFixedWidth() const { - if (!m_Face) - return FALSE; - return FXFT_Is_Face_fixedwidth(m_Face); -} - -CFX_WideString CFX_Font::GetPsName() const { - if (!m_Face) { - return CFX_WideString(); - } - CFX_WideString psName = - CFX_WideString::FromLocal(FXFT_Get_Postscript_Name(m_Face)); - if (psName.IsEmpty()) { - psName = CFX_WideString::FromLocal("Untitled"); - } - return psName; -} -CFX_ByteString CFX_Font::GetFamilyName() const { - if (!m_Face && !m_pSubstFont) { - return CFX_ByteString(); - } - if (m_Face) { - return CFX_ByteString(FXFT_Get_Face_Family_Name(m_Face)); - } - return m_pSubstFont->m_Family; -} -CFX_ByteString CFX_Font::GetFaceName() const { - if (!m_Face && !m_pSubstFont) { - return CFX_ByteString(); - } - if (m_Face) { - CFX_ByteString facename; - CFX_ByteString style = CFX_ByteString(FXFT_Get_Face_Style_Name(m_Face)); - facename = GetFamilyName(); - if (facename.IsEmpty()) { - facename = "Untitled"; - } - if (!style.IsEmpty() && style != "Regular") { - facename += " " + style; - } - return facename; - } - return m_pSubstFont->m_Family; -} -FX_BOOL CFX_Font::GetBBox(FX_RECT& bbox) { - if (!m_Face) { - return FALSE; - } - int em = FXFT_Get_Face_UnitsPerEM(m_Face); - if (em == 0) { - bbox.left = FXFT_Get_Face_xMin(m_Face); - bbox.bottom = FXFT_Get_Face_yMax(m_Face); - bbox.top = FXFT_Get_Face_yMin(m_Face); - bbox.right = FXFT_Get_Face_xMax(m_Face); - } else { - bbox.left = FXFT_Get_Face_xMin(m_Face) * 1000 / em; - bbox.top = FXFT_Get_Face_yMin(m_Face) * 1000 / em; - bbox.right = FXFT_Get_Face_xMax(m_Face) * 1000 / em; - bbox.bottom = FXFT_Get_Face_yMax(m_Face) * 1000 / em; - } - return TRUE; -} - -int CFX_Font::GetHeight() const { - if (!m_Face) - return 0; - - return EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), - FXFT_Get_Face_Height(m_Face)); -} - -int CFX_Font::GetMaxAdvanceWidth() const { - if (!m_Face) - return 0; - - return EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), - FXFT_Get_Face_MaxAdvanceWidth(m_Face)); -} - -int CFX_Font::GetULPos() const { - if (!m_Face) - return 0; - - return EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), - FXFT_Get_Face_UnderLinePosition(m_Face)); -} - -int CFX_Font::GetULthickness() const { - if (!m_Face) - return 0; - - return EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), - FXFT_Get_Face_UnderLineThickness(m_Face)); -} - -CFX_UnicodeEncoding::CFX_UnicodeEncoding(CFX_Font* pFont) : m_pFont(pFont) { -} - -CFX_UnicodeEncoding::~CFX_UnicodeEncoding() { -} - -FX_DWORD CFX_UnicodeEncoding::GlyphFromCharCode(FX_DWORD charcode) { - FXFT_Face face = m_pFont->GetFace(); - if (!face) - return charcode; - - if (FXFT_Select_Charmap(face, FXFT_ENCODING_UNICODE) == 0) - return FXFT_Get_Char_Index(face, charcode); - - if (m_pFont->GetSubstFont() && m_pFont->GetSubstFont()->m_Charset == 2) { - FX_DWORD index = 0; - if (FXFT_Select_Charmap(face, FXFT_ENCODING_MS_SYMBOL) == 0) - index = FXFT_Get_Char_Index(face, charcode); - if (!index && !FXFT_Select_Charmap(face, FXFT_ENCODING_APPLE_ROMAN)) - return FXFT_Get_Char_Index(face, charcode); - } - return charcode; -} - -#ifdef PDF_ENABLE_XFA -CFX_UnicodeEncodingEx::CFX_UnicodeEncodingEx(CFX_Font* pFont, - FX_DWORD EncodingID) - : CFX_UnicodeEncoding(pFont), m_nEncodingID(EncodingID) { -} - -CFX_UnicodeEncodingEx::~CFX_UnicodeEncodingEx() { -} - -FX_DWORD CFX_UnicodeEncodingEx::GlyphFromCharCode(FX_DWORD charcode) { - FXFT_Face face = m_pFont->GetFace(); - FT_UInt nIndex = FXFT_Get_Char_Index(face, charcode); - if (nIndex > 0) { - return nIndex; - } - int nmaps = FXFT_Get_Face_CharmapCount(face); - int m = 0; - while (m < nmaps) { - int nEncodingID = - FXFT_Get_Charmap_Encoding(FXFT_Get_Face_Charmaps(face)[m++]); - if (m_nEncodingID == nEncodingID) { - continue; - } - int error = FXFT_Select_Charmap(face, nEncodingID); - if (error) { - continue; - } - nIndex = FXFT_Get_Char_Index(face, charcode); - if (nIndex > 0) { - m_nEncodingID = nEncodingID; - return nIndex; - } - } - FXFT_Select_Charmap(face, m_nEncodingID); - return 0; -} - -FX_DWORD CFX_UnicodeEncodingEx::CharCodeFromUnicode(FX_WCHAR Unicode) const { - if (m_nEncodingID == FXFM_ENCODING_UNICODE || - m_nEncodingID == FXFM_ENCODING_MS_SYMBOL) { - return Unicode; - } - FXFT_Face face = m_pFont->GetFace(); - int nmaps = FXFT_Get_Face_CharmapCount(face); - for (int i = 0; i < nmaps; i++) { - int nEncodingID = - FXFT_Get_Charmap_Encoding(FXFT_Get_Face_Charmaps(face)[i]); - if (nEncodingID == FXFM_ENCODING_UNICODE || - nEncodingID == FXFM_ENCODING_MS_SYMBOL) { - return Unicode; - } - } - return -1; -} - -CFX_UnicodeEncodingEx* FX_CreateFontEncodingEx(CFX_Font* pFont, - FX_DWORD nEncodingID) { - if (!pFont || !pFont->GetFace()) - return nullptr; - - if (nEncodingID != FXFM_ENCODING_NONE) - return _FXFM_CreateFontEncoding(pFont, nEncodingID); - - for (size_t i = 0; i < FX_ArraySize(g_EncodingID); ++i) { - CFX_UnicodeEncodingEx* pFontEncoding = - _FXFM_CreateFontEncoding(pFont, g_EncodingID[i]); - if (pFontEncoding) { - return pFontEncoding; - } - } - return NULL; -} -#endif // PDF_ENABLE_XFA |