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author | dsinclair <dsinclair@chromium.org> | 2016-10-04 11:08:49 -0700 |
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committer | Commit bot <commit-bot@chromium.org> | 2016-10-04 11:08:49 -0700 |
commit | bc5e6d289ed40efec2b0e03427e8fc2947bf53e3 (patch) | |
tree | fa1509c1fe1a46a6ebe8861768804883041973be /core/fpdfapi/fpdf_font/cpdf_simplefont.cpp | |
parent | 241543581696e996093bf0c2ae09ece6afe13ba2 (diff) | |
download | pdfium-bc5e6d289ed40efec2b0e03427e8fc2947bf53e3.tar.xz |
Move core/fpdfapi/fpdf_font to core/fpdfapi/font
BUG=pdfium:603
Review-Url: https://codereview.chromium.org/2392773003
Diffstat (limited to 'core/fpdfapi/fpdf_font/cpdf_simplefont.cpp')
-rw-r--r-- | core/fpdfapi/fpdf_font/cpdf_simplefont.cpp | 216 |
1 files changed, 0 insertions, 216 deletions
diff --git a/core/fpdfapi/fpdf_font/cpdf_simplefont.cpp b/core/fpdfapi/fpdf_font/cpdf_simplefont.cpp deleted file mode 100644 index 3bb3730fb5..0000000000 --- a/core/fpdfapi/fpdf_font/cpdf_simplefont.cpp +++ /dev/null @@ -1,216 +0,0 @@ -// Copyright 2016 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/fpdfapi/fpdf_font/cpdf_simplefont.h" - -#include "core/fpdfapi/fpdf_font/font_int.h" -#include "core/fpdfapi/fpdf_parser/cpdf_array.h" -#include "core/fpdfapi/fpdf_parser/cpdf_dictionary.h" -#include "core/fxge/fx_freetype.h" -#include "third_party/base/numerics/safe_math.h" - -CPDF_SimpleFont::CPDF_SimpleFont() : m_BaseEncoding(PDFFONT_ENCODING_BUILTIN) { - FXSYS_memset(m_CharWidth, 0xff, sizeof(m_CharWidth)); - FXSYS_memset(m_GlyphIndex, 0xff, sizeof(m_GlyphIndex)); - FXSYS_memset(m_ExtGID, 0xff, sizeof(m_ExtGID)); - for (size_t i = 0; i < FX_ArraySize(m_CharBBox); ++i) - m_CharBBox[i] = FX_RECT(-1, -1, -1, -1); -} - -CPDF_SimpleFont::~CPDF_SimpleFont() {} - -int CPDF_SimpleFont::GlyphFromCharCode(uint32_t charcode, bool* pVertGlyph) { - if (pVertGlyph) - *pVertGlyph = false; - - if (charcode > 0xff) - return -1; - - int index = m_GlyphIndex[(uint8_t)charcode]; - return index != 0xffff ? index : -1; -} - -void CPDF_SimpleFont::LoadCharMetrics(int charcode) { - if (!m_Font.GetFace()) - return; - - if (charcode < 0 || charcode > 0xff) { - return; - } - int glyph_index = m_GlyphIndex[charcode]; - if (glyph_index == 0xffff) { - if (!m_pFontFile && charcode != 32) { - LoadCharMetrics(32); - m_CharBBox[charcode] = m_CharBBox[32]; - if (m_bUseFontWidth) { - m_CharWidth[charcode] = m_CharWidth[32]; - } - } - return; - } - FXFT_Face face = m_Font.GetFace(); - int err = FXFT_Load_Glyph( - face, glyph_index, - FXFT_LOAD_NO_SCALE | FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH); - if (err) - return; - - int iHoriBearingX = FXFT_Get_Glyph_HoriBearingX(face); - int iHoriBearingY = FXFT_Get_Glyph_HoriBearingY(face); - m_CharBBox[charcode] = - FX_RECT(TT2PDF(iHoriBearingX, face), TT2PDF(iHoriBearingY, face), - TT2PDF(iHoriBearingX + FXFT_Get_Glyph_Width(face), face), - TT2PDF(iHoriBearingY - FXFT_Get_Glyph_Height(face), face)); - - if (m_bUseFontWidth) { - int TT_Width = TT2PDF(FXFT_Get_Glyph_HoriAdvance(face), face); - if (m_CharWidth[charcode] == 0xffff) { - m_CharWidth[charcode] = TT_Width; - } else if (TT_Width && !IsEmbedded()) { - m_CharBBox[charcode].right = - m_CharBBox[charcode].right * m_CharWidth[charcode] / TT_Width; - m_CharBBox[charcode].left = - m_CharBBox[charcode].left * m_CharWidth[charcode] / TT_Width; - } - } -} - -int CPDF_SimpleFont::GetCharWidthF(uint32_t charcode) { - if (charcode > 0xff) - charcode = 0; - - if (m_CharWidth[charcode] == 0xffff) { - LoadCharMetrics(charcode); - if (m_CharWidth[charcode] == 0xffff) { - m_CharWidth[charcode] = 0; - } - } - return m_CharWidth[charcode]; -} - -FX_RECT CPDF_SimpleFont::GetCharBBox(uint32_t charcode) { - if (charcode > 0xff) - charcode = 0; - - if (m_CharBBox[charcode].left == -1) - LoadCharMetrics(charcode); - - return m_CharBBox[charcode]; -} - -bool CPDF_SimpleFont::LoadCommon() { - CPDF_Dictionary* pFontDesc = m_pFontDict->GetDictFor("FontDescriptor"); - if (pFontDesc) { - LoadFontDescriptor(pFontDesc); - } - CPDF_Array* pWidthArray = m_pFontDict->GetArrayFor("Widths"); - m_bUseFontWidth = !pWidthArray; - if (pWidthArray) { - if (pFontDesc && pFontDesc->KeyExist("MissingWidth")) { - int MissingWidth = pFontDesc->GetIntegerFor("MissingWidth"); - for (int i = 0; i < 256; i++) { - m_CharWidth[i] = MissingWidth; - } - } - size_t width_start = m_pFontDict->GetIntegerFor("FirstChar", 0); - size_t width_end = m_pFontDict->GetIntegerFor("LastChar", 0); - if (width_start <= 255) { - if (width_end == 0 || width_end >= width_start + pWidthArray->GetCount()) - width_end = width_start + pWidthArray->GetCount() - 1; - if (width_end > 255) - width_end = 255; - for (size_t i = width_start; i <= width_end; i++) - m_CharWidth[i] = pWidthArray->GetIntegerAt(i - width_start); - } - } - if (m_pFontFile) { - if (m_BaseFont.GetLength() > 8 && m_BaseFont[7] == '+') { - m_BaseFont = m_BaseFont.Mid(8); - } - } else { - LoadSubstFont(); - } - if (!(m_Flags & PDFFONT_SYMBOLIC)) { - m_BaseEncoding = PDFFONT_ENCODING_STANDARD; - } - CPDF_Object* pEncoding = m_pFontDict->GetDirectObjectFor("Encoding"); - LoadPDFEncoding(pEncoding, m_BaseEncoding, &m_CharNames, !!m_pFontFile, - m_Font.IsTTFont()); - LoadGlyphMap(); - m_CharNames.clear(); - if (!m_Font.GetFace()) - return true; - - if (m_Flags & PDFFONT_ALLCAP) { - unsigned char kLowercases[][2] = {{'a', 'z'}, {0xe0, 0xf6}, {0xf8, 0xfd}}; - for (size_t range = 0; range < FX_ArraySize(kLowercases); ++range) { - const auto& lower = kLowercases[range]; - for (int i = lower[0]; i <= lower[1]; ++i) { - if (m_GlyphIndex[i] != 0xffff && m_pFontFile) - continue; - - int j = i - 32; - m_GlyphIndex[i] = m_GlyphIndex[j]; - if (m_CharWidth[j]) { - m_CharWidth[i] = m_CharWidth[j]; - m_CharBBox[i] = m_CharBBox[j]; - } - } - } - } - CheckFontMetrics(); - return true; -} - -void CPDF_SimpleFont::LoadSubstFont() { - if (!m_bUseFontWidth && !(m_Flags & PDFFONT_FIXEDPITCH)) { - int width = 0, i; - for (i = 0; i < 256; i++) { - if (m_CharWidth[i] == 0 || m_CharWidth[i] == 0xffff) { - continue; - } - if (width == 0) { - width = m_CharWidth[i]; - } else if (width != m_CharWidth[i]) { - break; - } - } - if (i == 256 && width) { - m_Flags |= PDFFONT_FIXEDPITCH; - } - } - pdfium::base::CheckedNumeric<int> safeStemV(m_StemV); - if (m_StemV < 140) - safeStemV *= 5; - else - safeStemV = safeStemV * 4 + 140; - m_Font.LoadSubst(m_BaseFont, IsTrueTypeFont(), m_Flags, - safeStemV.ValueOrDefault(FXFONT_FW_NORMAL), m_ItalicAngle, 0, - false); -} - -bool CPDF_SimpleFont::IsUnicodeCompatible() const { - return m_BaseEncoding != PDFFONT_ENCODING_BUILTIN && - m_BaseEncoding != PDFFONT_ENCODING_ADOBE_SYMBOL && - m_BaseEncoding != PDFFONT_ENCODING_ZAPFDINGBATS; -} - -CFX_WideString CPDF_SimpleFont::UnicodeFromCharCode(uint32_t charcode) const { - CFX_WideString unicode = CPDF_Font::UnicodeFromCharCode(charcode); - if (!unicode.IsEmpty()) - return unicode; - FX_WCHAR ret = m_Encoding.UnicodeFromCharCode((uint8_t)charcode); - if (ret == 0) - return CFX_WideString(); - return ret; -} - -uint32_t CPDF_SimpleFont::CharCodeFromUnicode(FX_WCHAR unicode) const { - uint32_t ret = CPDF_Font::CharCodeFromUnicode(unicode); - if (ret) - return ret; - return m_Encoding.CharCodeFromUnicode(unicode); -} |