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Diffstat (limited to 'fpdfsdk/fxedit/fxet_ap.cpp')
-rw-r--r--fpdfsdk/fxedit/fxet_ap.cpp206
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();
+}