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Unified Diff: core/fxge/ge/fx_ge_font.cpp

Issue 2304493005: Move CFX_Font definition to its own file (Closed)
Patch Set: Created 4 years, 3 months ago
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« core/fxge/ge/cfx_font.cpp ('K') | « core/fxge/ge/cfx_font.cpp ('k') | core/fxge/ge/fx_ge_text.cpp » ('j') | no next file with comments »
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Index: core/fxge/ge/fx_ge_font.cpp
diff --git a/core/fxge/ge/fx_ge_font.cpp b/core/fxge/ge/fx_ge_font.cpp
deleted file mode 100644
index cb86429ef6bc7b3f311229ab0855625c5e06020a..0000000000000000000000000000000000000000
--- a/core/fxge/ge/fx_ge_font.cpp
+++ /dev/null
@@ -1,416 +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/fxge/include/fx_font.h"
-
-#include "core/fpdfapi/fpdf_font/include/cpdf_font.h"
-#include "core/fxge/ge/fx_text_int.h"
-#include "core/fxge/include/cfx_fontmgr.h"
-#include "core/fxge/include/cfx_gemodule.h"
-#include "core/fxge/include/cfx_substfont.h"
-#include "core/fxge/include/fx_freetype.h"
-
-#define EM_ADJUST(em, a) (em == 0 ? (a) : (a)*1000 / em)
-
-namespace {
-
-#ifdef PDF_ENABLE_XFA
-
-unsigned long FTStreamRead(FXFT_Stream stream,
- unsigned long offset,
- unsigned char* buffer,
- unsigned long count) {
- if (count == 0)
- return 0;
-
- IFX_FileRead* pFile = static_cast<IFX_FileRead*>(stream->descriptor.pointer);
- return pFile->ReadBlock(buffer, offset, count) ? count : 0;
-}
-
-void FTStreamClose(FXFT_Stream stream) {}
-
-FX_BOOL LoadFileImp(FXFT_Library library,
- FXFT_Face* Face,
- IFX_FileRead* pFile,
- int32_t faceIndex,
- std::unique_ptr<FXFT_StreamRec>* stream) {
- std::unique_ptr<FXFT_StreamRec> stream1(new FXFT_StreamRec());
- stream1->base = nullptr;
- stream1->size = static_cast<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.get();
- if (FXFT_Open_Face(library, &args, faceIndex, Face))
- return FALSE;
- if (stream)
- *stream = std::move(stream1);
- return TRUE;
-}
-#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()
-#ifdef PDF_ENABLE_XFA
- : m_bLogic(FALSE),
- m_pOwnedStream(nullptr),
- m_Face(nullptr),
-#else
- : m_Face(nullptr),
-#endif // PDF_ENABLE_XFA
- m_pFontData(nullptr),
- m_pGsubData(nullptr),
- m_dwSize(0),
-#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
- m_pPlatformFont(nullptr),
-#endif
- m_bEmbedded(FALSE),
- m_bVertical(FALSE) {
-}
-
-#ifdef PDF_ENABLE_XFA
-FX_BOOL CFX_Font::LoadClone(const CFX_Font* pFont) {
- if (!pFont)
- return FALSE;
-
- m_bLogic = TRUE;
- if (pFont->m_pSubstFont) {
- m_pSubstFont.reset(new CFX_SubstFont);
- m_pSubstFont->m_Charset = pFont->m_pSubstFont->m_Charset;
- 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;
-#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
- m_pPlatformFont = pFont->m_pPlatformFont;
-#endif
- m_pOwnedStream = pFont->m_pOwnedStream;
- return TRUE;
-}
-#endif // PDF_ENABLE_XFA
-
-CFX_Font::~CFX_Font() {
-#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_ && !defined _SKIA_SUPPORT_
- ReleasePlatformResource();
-#endif
-}
-
-void CFX_Font::DeleteFace() {
- FXFT_Done_Face(m_Face);
- m_Face = nullptr;
-}
-
-void CFX_Font::LoadSubst(const CFX_ByteString& face_name,
- FX_BOOL bTrueType,
- uint32_t flags,
- int weight,
- int italic_angle,
- int CharsetCP,
- FX_BOOL bVertical) {
- m_bEmbedded = FALSE;
- m_bVertical = bVertical;
- m_pSubstFont.reset(new CFX_SubstFont);
- m_Face = CFX_GEModule::Get()->GetFontMgr()->FindSubstFont(
- face_name, bTrueType, flags, weight, italic_angle, CharsetCP,
- m_pSubstFont.get());
- 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
-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();
-
- std::unique_ptr<FXFT_StreamRec> stream;
- if (!LoadFileImp(library, &m_Face, pFile, nFaceIndex, &stream))
- return FALSE;
-
- if (pFaceCount)
- *pFaceCount = (int)m_Face->num_faces;
- m_pOwnedStream = stream.release();
- FXFT_Set_Pixel_Sizes(m_Face, 0, 64);
- return TRUE;
-}
-#endif // PDF_ENABLE_XFA
-
-int CFX_Font::GetGlyphWidth(uint32_t 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, uint32_t size) {
- std::vector<uint8_t> temp(data, data + size);
- m_pFontDataAllocation.swap(temp);
- m_Face = FT_LoadFont(m_pFontDataAllocation.data(), size);
- m_pFontData = m_pFontDataAllocation.data();
- m_bEmbedded = TRUE;
- m_dwSize = size;
- return !!m_Face;
-}
-
-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(uint32_t 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_ByteString CFX_Font::GetPsName() const {
- if (!m_Face)
- return CFX_ByteString();
-
- CFX_ByteString psName = FXFT_Get_Postscript_Name(m_Face);
- if (psName.IsEmpty())
- psName = "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));
-}
« core/fxge/ge/cfx_font.cpp ('K') | « core/fxge/ge/cfx_font.cpp ('k') | core/fxge/ge/fx_ge_text.cpp » ('j') | no next file with comments »

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