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authornpm <npm@chromium.org>2016-08-18 10:55:29 -0700
committerCommit bot <commit-bot@chromium.org>2016-08-18 10:55:29 -0700
commit1a8946b09884393d7dc4941e59b3172a7e473b01 (patch)
tree12bfdaad2b15bd515f8d8fff27c7fe0db63cce2b /core/fxge/ge/cfx_unicodeencodingex.cpp
parent2eb7c7dd6392488d858989da8d57d618f58f04ca (diff)
downloadpdfium-1a8946b09884393d7dc4941e59b3172a7e473b01.tar.xz
Move CFX_UnicodeEncoding and CFX_UnicodeEncodingEx to their own files.
Review-Url: https://codereview.chromium.org/2260533002
Diffstat (limited to 'core/fxge/ge/cfx_unicodeencodingex.cpp')
-rw-r--r--core/fxge/ge/cfx_unicodeencodingex.cpp98
1 files changed, 98 insertions, 0 deletions
diff --git a/core/fxge/ge/cfx_unicodeencodingex.cpp b/core/fxge/ge/cfx_unicodeencodingex.cpp
new file mode 100644
index 0000000000..030a1e9674
--- /dev/null
+++ b/core/fxge/ge/cfx_unicodeencodingex.cpp
@@ -0,0 +1,98 @@
+// 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/fxge/include/cfx_unicodeencodingex.h"
+
+#include "core/fpdfapi/fpdf_font/include/cpdf_font.h"
+#include "core/fxge/include/fx_font.h"
+#include "core/fxge/include/fx_freetype.h"
+
+namespace {
+
+const uint32_t 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,
+ uint32_t nEncodingID) {
+ if (FXFT_Select_Charmap(pFont->GetFace(), nEncodingID))
+ return nullptr;
+ return new CFX_UnicodeEncodingEx(pFont, nEncodingID);
+}
+
+} // namespace
+
+CFX_UnicodeEncodingEx::CFX_UnicodeEncodingEx(CFX_Font* pFont,
+ uint32_t EncodingID)
+ : CFX_UnicodeEncoding(pFont), m_nEncodingID(EncodingID) {}
+
+CFX_UnicodeEncodingEx::~CFX_UnicodeEncodingEx() {}
+
+uint32_t CFX_UnicodeEncodingEx::GlyphFromCharCode(uint32_t 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) {
+ uint32_t 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;
+}
+
+uint32_t 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 CPDF_Font::kInvalidCharCode;
+}
+
+CFX_UnicodeEncodingEx* FX_CreateFontEncodingEx(CFX_Font* pFont,
+ uint32_t 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 nullptr;
+}