diff options
Diffstat (limited to 'fpdfsdk/fxedit/fxet_ap.cpp')
| -rw-r--r-- | fpdfsdk/fxedit/fxet_ap.cpp | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/fpdfsdk/fxedit/fxet_ap.cpp b/fpdfsdk/fxedit/fxet_ap.cpp new file mode 100644 index 0000000000..22f200d753 --- /dev/null +++ b/fpdfsdk/fxedit/fxet_ap.cpp @@ -0,0 +1,206 @@ +// 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/include/fpdfapi/fpdf_parser_decode.h" +#include "core/include/fpdfapi/fpdf_resource.h" +#include "fpdfsdk/include/fxedit/fx_edit.h" +#include "fpdfsdk/include/fxedit/fxet_edit.h" + +CFX_ByteString GetPDFWordString(IFX_Edit_FontMap* pFontMap, + int32_t nFontIndex, + FX_WORD Word, + FX_WORD SubWord) { + CFX_ByteString sWord; + if (CPDF_Font* pPDFFont = pFontMap->GetPDFFont(nFontIndex)) { + if (SubWord > 0) { + Word = SubWord; + } else { + FX_DWORD dwCharCode = -1; + + if (pPDFFont->IsUnicodeCompatible()) + dwCharCode = pPDFFont->CharCodeFromUnicode(Word); + else + dwCharCode = pFontMap->CharCodeFromUnicode(nFontIndex, Word); + + if (dwCharCode > 0) { + pPDFFont->AppendChar(sWord, dwCharCode); + return sWord; + } + } + + pPDFFont->AppendChar(sWord, Word); + } + + return sWord; +} + +static CFX_ByteString GetWordRenderString(const CFX_ByteString& strWords) { + if (strWords.GetLength() > 0) + return PDF_EncodeString(strWords) + " Tj\n"; + + return ""; +} + +static CFX_ByteString GetFontSetString(IFX_Edit_FontMap* pFontMap, + int32_t nFontIndex, + FX_FLOAT fFontSize) { + CFX_ByteTextBuf sRet; + + if (pFontMap) { + CFX_ByteString sFontAlias = pFontMap->GetPDFFontAlias(nFontIndex); + + if (sFontAlias.GetLength() > 0 && fFontSize > 0) + sRet << "/" << sFontAlias << " " << fFontSize << " Tf\n"; + } + + return sRet.GetByteString(); +} + +CFX_ByteString IFX_Edit::GetEditAppearanceStream( + IFX_Edit* pEdit, + const CFX_FloatPoint& ptOffset, + const CPVT_WordRange* pRange /* = NULL*/, + FX_BOOL bContinuous /* = TRUE*/, + FX_WORD SubWord /* = 0*/) { + CFX_ByteTextBuf sEditStream, sWords; + + CFX_FloatPoint ptOld(0.0f, 0.0f), ptNew(0.0f, 0.0f); + int32_t nCurFontIndex = -1; + + if (IFX_Edit_Iterator* pIterator = pEdit->GetIterator()) { + if (pRange) + pIterator->SetAt(pRange->BeginPos); + else + pIterator->SetAt(0); + + CPVT_WordPlace oldplace; + + while (pIterator->NextWord()) { + CPVT_WordPlace place = pIterator->GetAt(); + + if (pRange && place.WordCmp(pRange->EndPos) > 0) + break; + + if (bContinuous) { + if (place.LineCmp(oldplace) != 0) { + if (sWords.GetSize() > 0) { + sEditStream << GetWordRenderString(sWords.GetByteString()); + sWords.Clear(); + } + + CPVT_Word word; + if (pIterator->GetWord(word)) { + ptNew = CFX_FloatPoint(word.ptWord.x + ptOffset.x, + word.ptWord.y + ptOffset.y); + } else { + CPVT_Line line; + pIterator->GetLine(line); + ptNew = CFX_FloatPoint(line.ptLine.x + ptOffset.x, + line.ptLine.y + ptOffset.y); + } + + if (ptNew.x != ptOld.x || ptNew.y != ptOld.y) { + sEditStream << ptNew.x - ptOld.x << " " << ptNew.y - ptOld.y + << " Td\n"; + + ptOld = ptNew; + } + } + + CPVT_Word word; + if (pIterator->GetWord(word)) { + if (word.nFontIndex != nCurFontIndex) { + if (sWords.GetSize() > 0) { + sEditStream << GetWordRenderString(sWords.GetByteString()); + sWords.Clear(); + } + sEditStream << GetFontSetString(pEdit->GetFontMap(), + word.nFontIndex, word.fFontSize); + nCurFontIndex = word.nFontIndex; + } + + sWords << GetPDFWordString(pEdit->GetFontMap(), nCurFontIndex, + word.Word, SubWord); + } + + oldplace = place; + } else { + CPVT_Word word; + if (pIterator->GetWord(word)) { + ptNew = CFX_FloatPoint(word.ptWord.x + ptOffset.x, + word.ptWord.y + ptOffset.y); + + if (ptNew.x != ptOld.x || ptNew.y != ptOld.y) { + sEditStream << ptNew.x - ptOld.x << " " << ptNew.y - ptOld.y + << " Td\n"; + ptOld = ptNew; + } + + if (word.nFontIndex != nCurFontIndex) { + sEditStream << GetFontSetString(pEdit->GetFontMap(), + word.nFontIndex, word.fFontSize); + nCurFontIndex = word.nFontIndex; + } + + sEditStream << GetWordRenderString(GetPDFWordString( + pEdit->GetFontMap(), nCurFontIndex, word.Word, SubWord)); + } + } + } + + if (sWords.GetSize() > 0) { + sEditStream << GetWordRenderString(sWords.GetByteString()); + sWords.Clear(); + } + } + + CFX_ByteTextBuf sAppStream; + if (sEditStream.GetSize() > 0) { + int32_t nHorzScale = pEdit->GetHorzScale(); + if (nHorzScale != 100) { + sAppStream << nHorzScale << " Tz\n"; + } + + FX_FLOAT fCharSpace = pEdit->GetCharSpace(); + if (!FX_EDIT_IsFloatZero(fCharSpace)) { + sAppStream << fCharSpace << " Tc\n"; + } + + sAppStream << sEditStream; + } + + return sAppStream.GetByteString(); +} + +CFX_ByteString IFX_Edit::GetSelectAppearanceStream( + IFX_Edit* pEdit, + const CFX_FloatPoint& ptOffset, + const CPVT_WordRange* pRange) { + CFX_ByteTextBuf sRet; + + if (pRange && pRange->IsExist()) { + if (IFX_Edit_Iterator* pIterator = pEdit->GetIterator()) { + pIterator->SetAt(pRange->BeginPos); + + while (pIterator->NextWord()) { + CPVT_WordPlace place = pIterator->GetAt(); + + if (pRange && place.WordCmp(pRange->EndPos) > 0) + break; + + CPVT_Word word; + CPVT_Line line; + if (pIterator->GetWord(word) && pIterator->GetLine(line)) { + sRet << word.ptWord.x + ptOffset.x << " " + << line.ptLine.y + line.fLineDescent << " " << word.fWidth << " " + << line.fLineAscent - line.fLineDescent << " re\nf\n"; + } + } + } + } + + return sRet.GetByteString(); +} |