From 01b67ed9b441cd485997bc08482def1f2ab265db Mon Sep 17 00:00:00 2001 From: npm Date: Mon, 12 Sep 2016 13:38:52 -0700 Subject: Refactor CPDF_Document by creating new methods - Methods GetPagesDict, ProcessNonbCJK, CalculateFlags, and CalculateEncodingDict created to reduce duplicated code. - Code nits Review-Url: https://codereview.chromium.org/2323793003 --- core/fpdfapi/fpdf_parser/cpdf_document.cpp | 245 ++++++++++------------- core/fpdfapi/fpdf_parser/include/cpdf_document.h | 4 +- core/fxge/ge/cfx_font.cpp | 27 ++- core/fxge/include/fx_font.h | 6 +- 4 files changed, 125 insertions(+), 157 deletions(-) (limited to 'core') diff --git a/core/fpdfapi/fpdf_parser/cpdf_document.cpp b/core/fpdfapi/fpdf_parser/cpdf_document.cpp index 8910fa1205..b3fdc7c07f 100644 --- a/core/fpdfapi/fpdf_parser/cpdf_document.cpp +++ b/core/fpdfapi/fpdf_parser/cpdf_document.cpp @@ -200,9 +200,8 @@ void InsertWidthArray(HDC hDC, int start, int end, CPDF_Array* pWidthArray) { } else { CPDF_Array* pWidthArray1 = new CPDF_Array; pWidthArray->Add(pWidthArray1); - for (i = 0; i < size; i++) { + for (i = 0; i < size; i++) pWidthArray1->AddInteger(widths[i]); - } } FX_Free(widths); } @@ -301,10 +300,7 @@ int InsertNewPage(CPDF_Document* pDoc, CPDF_Dictionary* pPageDict, CFX_ArrayTemplate& pageList) { CPDF_Dictionary* pRoot = pDoc->GetRoot(); - if (!pRoot) - return -1; - - CPDF_Dictionary* pPages = pRoot->GetDictBy("Pages"); + CPDF_Dictionary* pPages = pRoot ? pRoot->GetDictBy("Pages") : nullptr; if (!pPages) return -1; @@ -333,19 +329,16 @@ int InsertNewPage(CPDF_Document* pDoc, int CountPages(CPDF_Dictionary* pPages, std::set* visited_pages) { int count = pPages->GetIntegerBy("Count"); - if (count > 0 && count < FPDF_PAGE_MAX_NUM) { + if (count > 0 && count < FPDF_PAGE_MAX_NUM) return count; - } CPDF_Array* pKidList = pPages->GetArrayBy("Kids"); - if (!pKidList) { + if (!pKidList) return 0; - } count = 0; for (size_t i = 0; i < pKidList->GetCount(); i++) { CPDF_Dictionary* pKid = pKidList->GetDictAt(i); - if (!pKid || pdfium::ContainsKey(*visited_pages, pKid)) { + if (!pKid || pdfium::ContainsKey(*visited_pages, pKid)) continue; - } if (pKid->KeyExist("Kids")) { // Use |visited_pages| to help detect circular references of pages. pdfium::ScopedSetInsertion local_add(visited_pages, @@ -360,6 +353,48 @@ int CountPages(CPDF_Dictionary* pPages, return count; } +int CalculateFlags(bool bold, + bool italic, + bool fixedPitch, + bool serif, + bool script, + bool symbolic) { + int flags = 0; + if (bold) + flags |= PDFFONT_FORCEBOLD; + if (italic) + flags |= PDFFONT_ITALIC; + if (fixedPitch) + flags |= PDFFONT_FIXEDPITCH; + if (serif) + flags |= PDFFONT_SERIF; + if (script) + flags |= PDFFONT_SCRIPT; + if (symbolic) + flags |= PDFFONT_SYMBOLIC; + else + flags |= PDFFONT_NONSYMBOLIC; + return flags; +} + +void ProcessNonbCJK(CPDF_Dictionary* pBaseDict, + bool bold, + bool italic, + CFX_ByteString basefont, + CPDF_Array* pWidths) { + if (bold && italic) + basefont += ",BoldItalic"; + else if (bold) + basefont += ",Bold"; + else if (italic) + basefont += ",Italic"; + pBaseDict->SetAtName("Subtype", "TrueType"); + pBaseDict->SetAtName("BaseFont", basefont); + pBaseDict->SetAtNumber("FirstChar", 32); + pBaseDict->SetAtNumber("LastChar", 255); + pBaseDict->SetAt("Widths", pWidths); +} + } // namespace CPDF_Document::CPDF_Document(std::unique_ptr pParser) @@ -446,26 +481,30 @@ CPDF_Dictionary* CPDF_Document::FindPDFPage(CPDF_Dictionary* pPages, nPagesToGo--; continue; } - if (pKid == pPages) { + if (pKid == pPages) continue; - } if (!pKid->KeyExist("Kids")) { - if (nPagesToGo == 0) { + if (nPagesToGo == 0) return pKid; - } + m_PageList.SetAt(iPage - nPagesToGo, pKid->GetObjNum()); nPagesToGo--; } else { int nPages = pKid->GetIntegerBy("Count"); - if (nPagesToGo < nPages) { + if (nPagesToGo < nPages) return FindPDFPage(pKid, iPage, nPagesToGo, level + 1); - } + nPagesToGo -= nPages; } } return nullptr; } +CPDF_Dictionary* CPDF_Document::GetPagesDict() const { + CPDF_Dictionary* pRoot = GetRoot(); + return pRoot ? pRoot->GetDictBy("Pages") : nullptr; +} + CPDF_Dictionary* CPDF_Document::GetPage(int iPage) { if (iPage < 0 || iPage >= m_PageList.GetSize()) return nullptr; @@ -483,11 +522,7 @@ CPDF_Dictionary* CPDF_Document::GetPage(int iPage) { return pDict; } - CPDF_Dictionary* pRoot = GetRoot(); - if (!pRoot) - return nullptr; - - CPDF_Dictionary* pPages = pRoot->GetDictBy("Pages"); + CPDF_Dictionary* pPages = GetPagesDict(); if (!pPages) return nullptr; @@ -566,11 +601,7 @@ int CPDF_Document::GetPageIndex(uint32_t objnum) { bSkipped = true; } } - CPDF_Dictionary* pRoot = GetRoot(); - if (!pRoot) - return -1; - - CPDF_Dictionary* pPages = pRoot->GetDictBy("Pages"); + CPDF_Dictionary* pPages = GetPagesDict(); if (!pPages) return -1; @@ -583,11 +614,7 @@ int CPDF_Document::GetPageCount() const { } int CPDF_Document::RetrievePageCount() const { - CPDF_Dictionary* pRoot = GetRoot(); - if (!pRoot) - return 0; - - CPDF_Dictionary* pPages = pRoot->GetDictBy("Pages"); + CPDF_Dictionary* pPages = GetPagesDict(); if (!pPages) return 0; @@ -670,11 +697,7 @@ CPDF_Dictionary* CPDF_Document::CreateNewPage(int iPage) { } void CPDF_Document::DeletePage(int iPage) { - CPDF_Dictionary* pRoot = GetRoot(); - if (!pRoot) - return; - - CPDF_Dictionary* pPages = pRoot->GetDictBy("Pages"); + CPDF_Dictionary* pPages = GetPagesDict(); if (!pPages) return; @@ -697,6 +720,30 @@ CPDF_Font* CPDF_Document::AddStandardFont(const FX_CHAR* font, return GetPageData()->GetStandardFont(name, pEncoding); } +size_t CPDF_Document::CalculateEncodingDict(int charset, + CPDF_Dictionary* pBaseDict) { + size_t i; + for (i = 0; i < FX_ArraySize(g_FX_CharsetUnicodes); ++i) { + if (g_FX_CharsetUnicodes[i].m_Charset == charset) + break; + } + if (i == FX_ArraySize(g_FX_CharsetUnicodes)) + return i; + CPDF_Dictionary* pEncodingDict = new CPDF_Dictionary; + pEncodingDict->SetAtName("BaseEncoding", "WinAnsiEncoding"); + CPDF_Array* pArray = new CPDF_Array; + pArray->AddInteger(128); + const uint16_t* pUnicodes = g_FX_CharsetUnicodes[i].m_pUnicodes; + for (int j = 0; j < 128; j++) { + CFX_ByteString name = PDF_AdobeNameFromUnicode(pUnicodes[j]); + pArray->AddName(name.IsEmpty() ? ".notdef" : name); + } + pEncodingDict->SetAt("Differences", pArray); + AddIndirectObject(pEncodingDict); + pBaseDict->SetAtReference("Encoding", this, pEncodingDict); + return i; +} + CPDF_Font* CPDF_Document::AddFont(CFX_Font* pFont, int charset, FX_BOOL bVert) { if (!pFont) return nullptr; @@ -707,13 +754,9 @@ CPDF_Font* CPDF_Document::AddFont(CFX_Font* pFont, int charset, FX_BOOL bVert) { charset == FXFONT_SHIFTJIS_CHARSET; CFX_ByteString basefont = pFont->GetFamilyName(); basefont.Replace(" ", ""); - int flags = 0; - if (pFont->IsBold()) - flags |= PDFFONT_FORCEBOLD; - if (pFont->IsItalic()) - flags |= PDFFONT_ITALIC; - if (pFont->IsFixedWidth()) - flags |= PDFFONT_FIXEDPITCH; + int flags = + CalculateFlags(pFont->IsBold(), pFont->IsItalic(), pFont->IsFixedWidth(), + false, false, charset == FXFONT_SYMBOL_CHARSET); CPDF_Dictionary* pBaseDict = new CPDF_Dictionary; pBaseDict->SetAtName("Type", "Font"); @@ -729,11 +772,6 @@ CPDF_Font* CPDF_Document::AddFont(CFX_Font* pFont, int charset, FX_BOOL bVert) { } if (charset == FXFONT_ANSI_CHARSET || charset == FXFONT_DEFAULT_CHARSET || charset == FXFONT_SYMBOL_CHARSET) { - if (charset == FXFONT_SYMBOL_CHARSET) { - flags |= PDFFONT_SYMBOLIC; - } else { - flags |= PDFFONT_NONSYMBOLIC; - } pBaseDict->SetAtName("Encoding", "WinAnsiEncoding"); for (int charcode = 128; charcode <= 255; charcode++) { int glyph_index = pEncoding->GlyphFromCharCode(charcode); @@ -741,42 +779,18 @@ CPDF_Font* CPDF_Document::AddFont(CFX_Font* pFont, int charset, FX_BOOL bVert) { pWidths->AddInteger(char_width); } } else { - flags |= PDFFONT_NONSYMBOLIC; - size_t i; - for (i = 0; i < FX_ArraySize(g_FX_CharsetUnicodes); ++i) { - if (g_FX_CharsetUnicodes[i].m_Charset == charset) - break; - } + size_t i = CalculateEncodingDict(charset, pBaseDict); if (i < FX_ArraySize(g_FX_CharsetUnicodes)) { - CPDF_Dictionary* pEncodingDict = new CPDF_Dictionary; - pEncodingDict->SetAtName("BaseEncoding", "WinAnsiEncoding"); - CPDF_Array* pArray = new CPDF_Array; - pArray->AddInteger(128); const uint16_t* pUnicodes = g_FX_CharsetUnicodes[i].m_pUnicodes; for (int j = 0; j < 128; j++) { - CFX_ByteString name = PDF_AdobeNameFromUnicode(pUnicodes[j]); - pArray->AddName(name.IsEmpty() ? ".notdef" : name); int glyph_index = pEncoding->GlyphFromCharCode(pUnicodes[j]); int char_width = pFont->GetGlyphWidth(glyph_index); pWidths->AddInteger(char_width); } - pEncodingDict->SetAt("Differences", pArray); - AddIndirectObject(pEncodingDict); - pBaseDict->SetAtReference("Encoding", this, pEncodingDict); } } - if (pFont->IsBold() && pFont->IsItalic()) - basefont += ",BoldItalic"; - else if (pFont->IsBold()) - basefont += ",Bold"; - else if (pFont->IsItalic()) - basefont += ",Italic"; - - pBaseDict->SetAtName("Subtype", "TrueType"); - pBaseDict->SetAtName("BaseFont", basefont); - pBaseDict->SetAtNumber("FirstChar", 32); - pBaseDict->SetAtNumber("LastChar", 255); - pBaseDict->SetAt("Widths", pWidths); + ProcessNonbCJK(pBaseDict, pFont->IsBold(), pFont->IsItalic(), basefont, + pWidths); } else { flags |= PDFFONT_NONSYMBOLIC; pFontDict = new CPDF_Dictionary; @@ -868,9 +882,8 @@ CPDF_Font* CPDF_Document::AddFont(CFX_Font* pFont, int charset, FX_BOOL bVert) { for (size_t i = 1; i < count; i++) { glyph = pEncoding->GlyphFromCharCode(stem_chars[i]); int width = pFont->GetGlyphWidth(glyph); - if (width > 0 && width < nStemV) { + if (width > 0 && width < nStemV) nStemV = width; - } } } pFontDesc->SetAtInteger("StemV", nStemV); @@ -910,17 +923,13 @@ CPDF_Font* CPDF_Document::AddWindowsFont(LOGFONTA* pLogFont, } LPBYTE tm_buf = FX_Alloc(BYTE, tm_size); - OUTLINETEXTMETRIC* ptm = (OUTLINETEXTMETRIC*)tm_buf; + OUTLINETEXTMETRIC* ptm = reinterpret_cast(tm_buf); GetOutlineTextMetrics(hDC, tm_size, ptm); - int flags = 0, italicangle, ascend, descend, capheight, bbox[4]; - if (pLogFont->lfItalic) - flags |= PDFFONT_ITALIC; - if ((pLogFont->lfPitchAndFamily & 3) == FIXED_PITCH) - flags |= PDFFONT_FIXEDPITCH; - if ((pLogFont->lfPitchAndFamily & 0xf8) == FF_ROMAN) - flags |= PDFFONT_SERIF; - if ((pLogFont->lfPitchAndFamily & 0xf8) == FF_SCRIPT) - flags |= PDFFONT_SCRIPT; + int flags = CalculateFlags(false, pLogFont->lfItalic != 0, + (pLogFont->lfPitchAndFamily & 3) == FIXED_PITCH, + (pLogFont->lfPitchAndFamily & 0xf8) == FF_ROMAN, + (pLogFont->lfPitchAndFamily & 0xf8) == FF_SCRIPT, + pLogFont->lfCharSet == SYMBOL_CHARSET); bool bCJK = pLogFont->lfCharSet == CHINESEBIG5_CHARSET || pLogFont->lfCharSet == GB2312_CHARSET || @@ -933,14 +942,12 @@ CPDF_Font* CPDF_Document::AddWindowsFont(LOGFONTA* pLogFont, if (basefont.IsEmpty()) basefont = pLogFont->lfFaceName; - italicangle = ptm->otmItalicAngle / 10; - ascend = ptm->otmrcFontBox.top; - descend = ptm->otmrcFontBox.bottom; - capheight = ptm->otmsCapEmHeight; - bbox[0] = ptm->otmrcFontBox.left; - bbox[1] = ptm->otmrcFontBox.bottom; - bbox[2] = ptm->otmrcFontBox.right; - bbox[3] = ptm->otmrcFontBox.top; + int italicangle = ptm->otmItalicAngle / 10; + int ascend = ptm->otmrcFontBox.top; + int descend = ptm->otmrcFontBox.bottom; + int capheight = ptm->otmsCapEmHeight; + int bbox[4] = {ptm->otmrcFontBox.left, ptm->otmrcFontBox.bottom, + ptm->otmrcFontBox.right, ptm->otmrcFontBox.top}; FX_Free(tm_buf); basefont.Replace(" ", ""); CPDF_Dictionary* pBaseDict = new CPDF_Dictionary; @@ -950,53 +957,18 @@ CPDF_Font* CPDF_Document::AddWindowsFont(LOGFONTA* pLogFont, if (pLogFont->lfCharSet == ANSI_CHARSET || pLogFont->lfCharSet == DEFAULT_CHARSET || pLogFont->lfCharSet == SYMBOL_CHARSET) { - if (pLogFont->lfCharSet == SYMBOL_CHARSET) - flags |= PDFFONT_SYMBOLIC; - else - flags |= PDFFONT_NONSYMBOLIC; pBaseDict->SetAtName("Encoding", "WinAnsiEncoding"); } else { - flags |= PDFFONT_NONSYMBOLIC; - size_t i; - for (i = 0; i < FX_ArraySize(g_FX_CharsetUnicodes); ++i) { - if (g_FX_CharsetUnicodes[i].m_Charset == pLogFont->lfCharSet) - break; - } - if (i < FX_ArraySize(g_FX_CharsetUnicodes)) { - CPDF_Dictionary* pEncoding = new CPDF_Dictionary; - pEncoding->SetAtName("BaseEncoding", "WinAnsiEncoding"); - CPDF_Array* pArray = new CPDF_Array; - pArray->AddInteger(128); - const uint16_t* pUnicodes = g_FX_CharsetUnicodes[i].m_pUnicodes; - for (int j = 0; j < 128; j++) { - CFX_ByteString name = PDF_AdobeNameFromUnicode(pUnicodes[j]); - pArray->AddName(name.IsEmpty() ? ".notdef" : name); - } - pEncoding->SetAt("Differences", pArray); - AddIndirectObject(pEncoding); - pBaseDict->SetAtReference("Encoding", this, pEncoding); - } + CalculateEncodingDict(pLogFont->lfCharSet, pBaseDict); } - if (pLogFont->lfWeight > FW_MEDIUM && pLogFont->lfItalic) - basefont += ",BoldItalic"; - else if (pLogFont->lfWeight > FW_MEDIUM) - basefont += ",Bold"; - else if (pLogFont->lfItalic) - basefont += ",Italic"; - - pBaseDict->SetAtName("Subtype", "TrueType"); - pBaseDict->SetAtName("BaseFont", basefont); - pBaseDict->SetAtNumber("FirstChar", 32); - pBaseDict->SetAtNumber("LastChar", 255); int char_widths[224]; GetCharWidth(hDC, 32, 255, char_widths); CPDF_Array* pWidths = new CPDF_Array; for (size_t i = 0; i < 224; i++) pWidths->AddInteger(char_widths[i]); - - pBaseDict->SetAt("Widths", pWidths); + ProcessNonbCJK(pBaseDict, pLogFont->lfWeight > FW_MEDIUM, + pLogFont->lfItalic != 0, basefont, pWidths); } else { - flags |= PDFFONT_NONSYMBOLIC; pFontDict = new CPDF_Dictionary; CFX_ByteString cmap; CFX_ByteString ordering; @@ -1062,9 +1034,8 @@ CPDF_Font* CPDF_Document::AddWindowsFont(LOGFONTA* pLogFont, pFontDesc->SetAtName("FontName", basefont); pFontDesc->SetAtInteger("Flags", flags); CPDF_Array* pBBox = new CPDF_Array; - for (int i = 0; i < 4; i++) { + for (int i = 0; i < 4; i++) pBBox->AddInteger(bbox[i]); - } pFontDesc->SetAt("FontBBox", pBBox); pFontDesc->SetAtInteger("ItalicAngle", italicangle); pFontDesc->SetAtInteger("Ascent", ascend); diff --git a/core/fpdfapi/fpdf_parser/include/cpdf_document.h b/core/fpdfapi/fpdf_parser/include/cpdf_document.h index 2d315e9d5b..494868ef13 100644 --- a/core/fpdfapi/fpdf_parser/include/cpdf_document.h +++ b/core/fpdfapi/fpdf_parser/include/cpdf_document.h @@ -60,8 +60,6 @@ class CPDF_Document : public CPDF_IndirectObjectHolder { CPDF_DocRenderData* GetRenderData() const { return m_pDocRender.get(); } - FX_BOOL IsFormStream(uint32_t objnum, FX_BOOL& bForm) const; - // |pFontDict| must not be null. CPDF_Font* LoadFont(CPDF_Dictionary* pFontDict); CPDF_ColorSpace* LoadColorSpace(CPDF_Object* pCSObj, @@ -128,6 +126,8 @@ class CPDF_Document : public CPDF_IndirectObjectHolder { private: void LoadDocInternal(); + size_t CalculateEncodingDict(int charset, CPDF_Dictionary* pBaseDict); + CPDF_Dictionary* GetPagesDict() const; }; #endif // CORE_FPDFAPI_FPDF_PARSER_INCLUDE_CPDF_DOCUMENT_H_ diff --git a/core/fxge/ge/cfx_font.cpp b/core/fxge/ge/cfx_font.cpp index 3d2e6d6499..feea8b0aa1 100644 --- a/core/fxge/ge/cfx_font.cpp +++ b/core/fxge/ge/cfx_font.cpp @@ -446,30 +446,27 @@ FX_BOOL CFX_Font::GetGlyphBBox(uint32_t glyph_index, FX_RECT& bbox) { return TRUE; } -FX_BOOL CFX_Font::IsItalic() const { +bool CFX_Font::IsItalic() const { if (!m_Face) - return FALSE; + 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; + if (FXFT_Is_Face_Italic(m_Face) == FXFT_STYLE_FLAG_ITALIC) + return true; + CFX_ByteString str(FXFT_Get_Face_Style_Name(m_Face)); + str.MakeLower(); + return str.Find("italic") != -1; } -FX_BOOL CFX_Font::IsBold() const { +bool CFX_Font::IsBold() const { if (!m_Face) - return FALSE; + return false; return FXFT_Is_Face_Bold(m_Face) == FXFT_STYLE_FLAG_BOLD; } -FX_BOOL CFX_Font::IsFixedWidth() const { +bool CFX_Font::IsFixedWidth() const { if (!m_Face) - return FALSE; - return FXFT_Is_Face_fixedwidth(m_Face); + return false; + return FXFT_Is_Face_fixedwidth(m_Face) != 0; } CFX_ByteString CFX_Font::GetPsName() const { diff --git a/core/fxge/include/fx_font.h b/core/fxge/include/fx_font.h index a607f3e0d5..9a976c44b7 100644 --- a/core/fxge/include/fx_font.h +++ b/core/fxge/include/fx_font.h @@ -117,9 +117,9 @@ class CFX_Font { int GetAscent() const; int GetDescent() const; FX_BOOL GetGlyphBBox(uint32_t glyph_index, FX_RECT& bbox); - FX_BOOL IsItalic() const; - FX_BOOL IsBold() const; - FX_BOOL IsFixedWidth() const; + bool IsItalic() const; + bool IsBold() const; + bool IsFixedWidth() const; FX_BOOL IsVertical() const { return m_bVertical; } CFX_ByteString GetPsName() const; CFX_ByteString GetFamilyName() const; -- cgit v1.2.3