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Unified Diff: core/fpdfapi/fpdf_font/cpdf_simplefont.cpp

Issue 2392773003: Move core/fpdfapi/fpdf_font to core/fpdfapi/font (Closed)
Patch Set: Created 4 years, 2 months ago
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Index: core/fpdfapi/fpdf_font/cpdf_simplefont.cpp
diff --git a/core/fpdfapi/fpdf_font/cpdf_simplefont.cpp b/core/fpdfapi/fpdf_font/cpdf_simplefont.cpp
deleted file mode 100644
index 3bb3730fb54e599bc9c68634977d1e9b39517bf2..0000000000000000000000000000000000000000
--- 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);
-}
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