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-rw-r--r--core/fpdftext/fpdf_text_int.cpp2500
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diff --git a/core/fpdftext/fpdf_text_int.cpp b/core/fpdftext/fpdf_text_int.cpp
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+++ b/core/fpdftext/fpdf_text_int.cpp
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+// 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/fpdftext/text_int.h"
+
+#include <algorithm>
+#include <cctype>
+#include <cwctype>
+#include <memory>
+#include <utility>
+#include <vector>
+
+#include "core/include/fpdfapi/cpdf_dictionary.h"
+#include "core/include/fpdfapi/cpdf_string.h"
+#include "core/include/fpdfapi/fpdf_module.h"
+#include "core/include/fpdfapi/fpdf_page.h"
+#include "core/include/fpdfapi/fpdf_pageobj.h"
+#include "core/include/fpdfapi/fpdf_resource.h"
+#include "core/include/fpdftext/fpdf_text.h"
+#include "core/include/fxcrt/fx_bidi.h"
+#include "core/include/fxcrt/fx_ext.h"
+#include "core/include/fxcrt/fx_ucd.h"
+#include "third_party/base/stl_util.h"
+
+namespace {
+
+FX_BOOL _IsIgnoreSpaceCharacter(FX_WCHAR curChar) {
+ if (curChar < 255) {
+ return FALSE;
+ }
+ if ((curChar >= 0x0600 && curChar <= 0x06FF) ||
+ (curChar >= 0xFE70 && curChar <= 0xFEFF) ||
+ (curChar >= 0xFB50 && curChar <= 0xFDFF) ||
+ (curChar >= 0x0400 && curChar <= 0x04FF) ||
+ (curChar >= 0x0500 && curChar <= 0x052F) ||
+ (curChar >= 0xA640 && curChar <= 0xA69F) ||
+ (curChar >= 0x2DE0 && curChar <= 0x2DFF) || curChar == 8467 ||
+ (curChar >= 0x2000 && curChar <= 0x206F)) {
+ return FALSE;
+ }
+ return TRUE;
+}
+
+FX_FLOAT _NormalizeThreshold(FX_FLOAT threshold) {
+ if (threshold < 300) {
+ return threshold / 2.0f;
+ }
+ if (threshold < 500) {
+ return threshold / 4.0f;
+ }
+ if (threshold < 700) {
+ return threshold / 5.0f;
+ }
+ return threshold / 6.0f;
+}
+
+FX_FLOAT _CalculateBaseSpace(const CPDF_TextObject* pTextObj,
+ const CFX_Matrix& matrix) {
+ FX_FLOAT baseSpace = 0.0;
+ const int nItems = pTextObj->CountItems();
+ if (pTextObj->m_TextState.GetObject()->m_CharSpace && nItems >= 3) {
+ FX_BOOL bAllChar = TRUE;
+ FX_FLOAT spacing = matrix.TransformDistance(
+ pTextObj->m_TextState.GetObject()->m_CharSpace);
+ baseSpace = spacing;
+ for (int i = 0; i < nItems; i++) {
+ CPDF_TextObjectItem item;
+ pTextObj->GetItemInfo(i, &item);
+ if (item.m_CharCode == (FX_DWORD)-1) {
+ FX_FLOAT fontsize_h = pTextObj->m_TextState.GetFontSizeH();
+ FX_FLOAT kerning = -fontsize_h * item.m_OriginX / 1000;
+ baseSpace = std::min(baseSpace, kerning + spacing);
+ bAllChar = FALSE;
+ }
+ }
+ if (baseSpace < 0.0 || (nItems == 3 && !bAllChar)) {
+ baseSpace = 0.0;
+ }
+ }
+ return baseSpace;
+}
+
+const FX_FLOAT kDefaultFontSize = 1.0f;
+
+} // namespace
+
+IPDF_TextPage* IPDF_TextPage::CreateTextPage(const CPDF_Page* pPage,
+ int flags) {
+ return new CPDF_TextPage(pPage, flags);
+}
+
+IPDF_TextPageFind* IPDF_TextPageFind::CreatePageFind(
+ const IPDF_TextPage* pTextPage) {
+ return pTextPage ? new CPDF_TextPageFind(pTextPage) : nullptr;
+}
+
+IPDF_LinkExtract* IPDF_LinkExtract::CreateLinkExtract() {
+ return new CPDF_LinkExtract();
+}
+
+#define TEXT_BLANK_CHAR L' '
+#define TEXT_LINEFEED_CHAR L'\n'
+#define TEXT_RETURN_CHAR L'\r'
+#define TEXT_EMPTY L""
+#define TEXT_BLANK L" "
+#define TEXT_RETURN_LINEFEED L"\r\n"
+#define TEXT_LINEFEED L"\n"
+#define TEXT_CHARRATIO_GAPDELTA 0.070
+
+CPDF_TextPage::CPDF_TextPage(const CPDF_Page* pPage, int flags)
+ : m_pPage(pPage),
+ m_parserflag(flags),
+ m_pPreTextObj(nullptr),
+ m_bIsParsed(false),
+ m_TextlineDir(-1),
+ m_CurlineRect(0, 0, 0, 0) {
+ m_TextBuf.EstimateSize(0, 10240);
+ pPage->GetDisplayMatrix(m_DisplayMatrix, 0, 0, (int)pPage->GetPageWidth(),
+ (int)pPage->GetPageHeight(), 0);
+}
+
+bool CPDF_TextPage::IsControlChar(const PAGECHAR_INFO& charInfo) {
+ switch (charInfo.m_Unicode) {
+ case 0x2:
+ case 0x3:
+ case 0x93:
+ case 0x94:
+ case 0x96:
+ case 0x97:
+ case 0x98:
+ case 0xfffe:
+ return charInfo.m_Flag != FPDFTEXT_CHAR_HYPHEN;
+ default:
+ return false;
+ }
+}
+
+void CPDF_TextPage::ParseTextPage() {
+ m_bIsParsed = false;
+ m_TextBuf.Clear();
+ m_CharList.clear();
+ m_pPreTextObj = NULL;
+ ProcessObject();
+
+ m_bIsParsed = true;
+ m_CharIndex.clear();
+ int nCount = pdfium::CollectionSize<int>(m_CharList);
+ if (nCount) {
+ m_CharIndex.push_back(0);
+ }
+ for (int i = 0; i < nCount; i++) {
+ int indexSize = pdfium::CollectionSize<int>(m_CharIndex);
+ FX_BOOL bNormal = FALSE;
+ const PAGECHAR_INFO& charinfo = m_CharList[i];
+ if (charinfo.m_Flag == FPDFTEXT_CHAR_GENERATED) {
+ bNormal = TRUE;
+ } else if (charinfo.m_Unicode == 0 || IsControlChar(charinfo)) {
+ bNormal = FALSE;
+ } else {
+ bNormal = TRUE;
+ }
+ if (bNormal) {
+ if (indexSize % 2) {
+ m_CharIndex.push_back(1);
+ } else {
+ if (indexSize <= 0) {
+ continue;
+ }
+ m_CharIndex[indexSize - 1] += 1;
+ }
+ } else {
+ if (indexSize % 2) {
+ if (indexSize <= 0) {
+ continue;
+ }
+ m_CharIndex[indexSize - 1] = i + 1;
+ } else {
+ m_CharIndex.push_back(i + 1);
+ }
+ }
+ }
+ int indexSize = pdfium::CollectionSize<int>(m_CharIndex);
+ if (indexSize % 2) {
+ m_CharIndex.erase(m_CharIndex.begin() + indexSize - 1);
+ }
+}
+
+int CPDF_TextPage::CountChars() const {
+ return pdfium::CollectionSize<int>(m_CharList);
+}
+
+int CPDF_TextPage::CharIndexFromTextIndex(int TextIndex) const {
+ int indexSize = pdfium::CollectionSize<int>(m_CharIndex);
+ int count = 0;
+ for (int i = 0; i < indexSize; i += 2) {
+ count += m_CharIndex[i + 1];
+ if (count > TextIndex)
+ return TextIndex - count + m_CharIndex[i + 1] + m_CharIndex[i];
+ }
+ return -1;
+}
+
+int CPDF_TextPage::TextIndexFromCharIndex(int CharIndex) const {
+ int indexSize = pdfium::CollectionSize<int>(m_CharIndex);
+ int count = 0;
+ for (int i = 0; i < indexSize; i += 2) {
+ count += m_CharIndex[i + 1];
+ if (m_CharIndex[i + 1] + m_CharIndex[i] > CharIndex) {
+ if (CharIndex - m_CharIndex[i] < 0)
+ return -1;
+
+ return CharIndex - m_CharIndex[i] + count - m_CharIndex[i + 1];
+ }
+ }
+ return -1;
+}
+
+void CPDF_TextPage::GetRectArray(int start,
+ int nCount,
+ CFX_RectArray& rectArray) const {
+ if (start < 0 || nCount == 0) {
+ return;
+ }
+ if (!m_bIsParsed) {
+ return;
+ }
+ CPDF_TextObject* pCurObj = NULL;
+ CFX_FloatRect rect;
+ int curPos = start;
+ FX_BOOL flagNewRect = TRUE;
+ if (nCount + start > pdfium::CollectionSize<int>(m_CharList) ||
+ nCount == -1) {
+ nCount = pdfium::CollectionSize<int>(m_CharList) - start;
+ }
+ while (nCount--) {
+ PAGECHAR_INFO info_curchar = m_CharList[curPos++];
+ if (info_curchar.m_Flag == FPDFTEXT_CHAR_GENERATED) {
+ continue;
+ }
+ if (info_curchar.m_CharBox.Width() < 0.01 ||
+ info_curchar.m_CharBox.Height() < 0.01) {
+ continue;
+ }
+ if (!pCurObj) {
+ pCurObj = info_curchar.m_pTextObj;
+ }
+ if (pCurObj != info_curchar.m_pTextObj) {
+ rectArray.Add(rect);
+ pCurObj = info_curchar.m_pTextObj;
+ flagNewRect = TRUE;
+ }
+ if (flagNewRect) {
+ FX_FLOAT orgX = info_curchar.m_OriginX, orgY = info_curchar.m_OriginY;
+ CFX_Matrix matrix, matrix_reverse;
+ info_curchar.m_pTextObj->GetTextMatrix(&matrix);
+ matrix.Concat(info_curchar.m_Matrix);
+ matrix_reverse.SetReverse(matrix);
+ matrix_reverse.Transform(orgX, orgY);
+ rect.left = info_curchar.m_CharBox.left;
+ rect.right = info_curchar.m_CharBox.right;
+ if (pCurObj->GetFont()->GetTypeDescent()) {
+ rect.bottom = orgY +
+ pCurObj->GetFont()->GetTypeDescent() *
+ pCurObj->GetFontSize() / 1000;
+ FX_FLOAT xPosTemp = orgX;
+ matrix.Transform(xPosTemp, rect.bottom);
+ } else {
+ rect.bottom = info_curchar.m_CharBox.bottom;
+ }
+ if (pCurObj->GetFont()->GetTypeAscent()) {
+ rect.top =
+ orgY +
+ pCurObj->GetFont()->GetTypeAscent() * pCurObj->GetFontSize() / 1000;
+ FX_FLOAT xPosTemp =
+ orgX +
+ GetCharWidth(info_curchar.m_CharCode, pCurObj->GetFont()) *
+ pCurObj->GetFontSize() / 1000;
+ matrix.Transform(xPosTemp, rect.top);
+ } else {
+ rect.top = info_curchar.m_CharBox.top;
+ }
+ flagNewRect = FALSE;
+ rect = info_curchar.m_CharBox;
+ rect.Normalize();
+ } else {
+ info_curchar.m_CharBox.Normalize();
+ if (rect.left > info_curchar.m_CharBox.left) {
+ rect.left = info_curchar.m_CharBox.left;
+ }
+ if (rect.right < info_curchar.m_CharBox.right) {
+ rect.right = info_curchar.m_CharBox.right;
+ }
+ if (rect.top < info_curchar.m_CharBox.top) {
+ rect.top = info_curchar.m_CharBox.top;
+ }
+ if (rect.bottom > info_curchar.m_CharBox.bottom) {
+ rect.bottom = info_curchar.m_CharBox.bottom;
+ }
+ }
+ }
+ rectArray.Add(rect);
+}
+
+int CPDF_TextPage::GetIndexAtPos(CFX_FloatPoint point,
+ FX_FLOAT xTolerance,
+ FX_FLOAT yTolerance) const {
+ if (!m_bIsParsed)
+ return -3;
+
+ int pos = 0;
+ int NearPos = -1;
+ double xdif = 5000;
+ double ydif = 5000;
+ while (pos < pdfium::CollectionSize<int>(m_CharList)) {
+ PAGECHAR_INFO charinfo = m_CharList[pos];
+ CFX_FloatRect charrect = charinfo.m_CharBox;
+ if (charrect.Contains(point.x, point.y)) {
+ break;
+ }
+ if (xTolerance > 0 || yTolerance > 0) {
+ CFX_FloatRect charRectExt;
+ charrect.Normalize();
+ charRectExt.left = charrect.left - xTolerance / 2;
+ charRectExt.right = charrect.right + xTolerance / 2;
+ charRectExt.top = charrect.top + yTolerance / 2;
+ charRectExt.bottom = charrect.bottom - yTolerance / 2;
+ if (charRectExt.Contains(point.x, point.y)) {
+ double curXdif, curYdif;
+ curXdif = FXSYS_fabs(point.x - charrect.left) <
+ FXSYS_fabs(point.x - charrect.right)
+ ? FXSYS_fabs(point.x - charrect.left)
+ : FXSYS_fabs(point.x - charrect.right);
+ curYdif = FXSYS_fabs(point.y - charrect.bottom) <
+ FXSYS_fabs(point.y - charrect.top)
+ ? FXSYS_fabs(point.y - charrect.bottom)
+ : FXSYS_fabs(point.y - charrect.top);
+ if (curYdif + curXdif < xdif + ydif) {
+ ydif = curYdif;
+ xdif = curXdif;
+ NearPos = pos;
+ }
+ }
+ }
+ ++pos;
+ }
+ return pos < pdfium::CollectionSize<int>(m_CharList) ? pos : NearPos;
+}
+
+CFX_WideString CPDF_TextPage::GetTextByRect(const CFX_FloatRect& rect) const {
+ if (!m_bIsParsed)
+ return CFX_WideString();
+
+ FX_FLOAT posy = 0;
+ bool IsContainPreChar = false;
+ bool IsAddLineFeed = false;
+ CFX_WideString strText;
+ for (const auto& charinfo : m_CharList) {
+ if (IsRectIntersect(rect, charinfo.m_CharBox)) {
+ if (FXSYS_fabs(posy - charinfo.m_OriginY) > 0 && !IsContainPreChar &&
+ IsAddLineFeed) {
+ posy = charinfo.m_OriginY;
+ if (strText.GetLength() > 0) {
+ strText += L"\r\n";
+ }
+ }
+ IsContainPreChar = true;
+ IsAddLineFeed = false;
+ if (charinfo.m_Unicode) {
+ strText += charinfo.m_Unicode;
+ }
+ } else if (charinfo.m_Unicode == 32) {
+ if (IsContainPreChar && charinfo.m_Unicode) {
+ strText += charinfo.m_Unicode;
+ IsContainPreChar = false;
+ IsAddLineFeed = false;
+ }
+ } else {
+ IsContainPreChar = false;
+ IsAddLineFeed = true;
+ }
+ }
+ return strText;
+}
+
+void CPDF_TextPage::GetRectsArrayByRect(const CFX_FloatRect& rect,
+ CFX_RectArray& resRectArray) const {
+ if (!m_bIsParsed)
+ return;
+
+ CFX_FloatRect curRect;
+ bool flagNewRect = true;
+ CPDF_TextObject* pCurObj = nullptr;
+ for (auto info_curchar : m_CharList) {
+ if (info_curchar.m_Flag == FPDFTEXT_CHAR_GENERATED) {
+ continue;
+ }
+ if (!IsRectIntersect(rect, info_curchar.m_CharBox)) {
+ continue;
+ }
+ if (!pCurObj) {
+ pCurObj = info_curchar.m_pTextObj;
+ }
+ if (pCurObj != info_curchar.m_pTextObj) {
+ resRectArray.Add(curRect);
+ pCurObj = info_curchar.m_pTextObj;
+ flagNewRect = true;
+ }
+ if (flagNewRect) {
+ curRect = info_curchar.m_CharBox;
+ curRect.Normalize();
+ flagNewRect = false;
+ } else {
+ info_curchar.m_CharBox.Normalize();
+ curRect.left = std::min(curRect.left, info_curchar.m_CharBox.left);
+ curRect.bottom = std::min(curRect.bottom, info_curchar.m_CharBox.bottom);
+ curRect.right = std::max(curRect.right, info_curchar.m_CharBox.right);
+ curRect.top = std::max(curRect.top, info_curchar.m_CharBox.top);
+ }
+ }
+ resRectArray.Add(curRect);
+}
+
+int CPDF_TextPage::GetIndexAtPos(FX_FLOAT x,
+ FX_FLOAT y,
+ FX_FLOAT xTolerance,
+ FX_FLOAT yTolerance) const {
+ CFX_FloatPoint point(x, y);
+ return GetIndexAtPos(point, xTolerance, yTolerance);
+}
+
+void CPDF_TextPage::GetCharInfo(int index, FPDF_CHAR_INFO* info) const {
+ if (!m_bIsParsed)
+ return;
+
+ if (index < 0 || index >= pdfium::CollectionSize<int>(m_CharList))
+ return;
+
+ const PAGECHAR_INFO& charinfo = m_CharList[index];
+ info->m_Charcode = charinfo.m_CharCode;
+ info->m_OriginX = charinfo.m_OriginX;
+ info->m_OriginY = charinfo.m_OriginY;
+ info->m_Unicode = charinfo.m_Unicode;
+ info->m_Flag = charinfo.m_Flag;
+ info->m_CharBox = charinfo.m_CharBox;
+ info->m_pTextObj = charinfo.m_pTextObj;
+ if (charinfo.m_pTextObj && charinfo.m_pTextObj->GetFont()) {
+ info->m_FontSize = charinfo.m_pTextObj->GetFontSize();
+ } else {
+ info->m_FontSize = kDefaultFontSize;
+ }
+ info->m_Matrix.Copy(charinfo.m_Matrix);
+}
+
+void CPDF_TextPage::CheckMarkedContentObject(int32_t& start,
+ int32_t& nCount) const {
+ PAGECHAR_INFO charinfo = m_CharList[start];
+ PAGECHAR_INFO charinfo2 = m_CharList[start + nCount - 1];
+ if (FPDFTEXT_CHAR_PIECE != charinfo.m_Flag &&
+ FPDFTEXT_CHAR_PIECE != charinfo2.m_Flag) {
+ return;
+ }
+ if (FPDFTEXT_CHAR_PIECE == charinfo.m_Flag) {
+ PAGECHAR_INFO charinfo1 = charinfo;
+ int startIndex = start;
+ while (FPDFTEXT_CHAR_PIECE == charinfo1.m_Flag &&
+ charinfo1.m_Index == charinfo.m_Index) {
+ startIndex--;
+ if (startIndex < 0) {
+ break;
+ }
+ charinfo1 = m_CharList[startIndex];
+ }
+ startIndex++;
+ start = startIndex;
+ }
+ if (FPDFTEXT_CHAR_PIECE == charinfo2.m_Flag) {
+ PAGECHAR_INFO charinfo3 = charinfo2;
+ int endIndex = start + nCount - 1;
+ while (FPDFTEXT_CHAR_PIECE == charinfo3.m_Flag &&
+ charinfo3.m_Index == charinfo2.m_Index) {
+ endIndex++;
+ if (endIndex >= pdfium::CollectionSize<int>(m_CharList)) {
+ break;
+ }
+ charinfo3 = m_CharList[endIndex];
+ }
+ endIndex--;
+ nCount = endIndex - start + 1;
+ }
+}
+
+CFX_WideString CPDF_TextPage::GetPageText(int start, int nCount) const {
+ if (!m_bIsParsed || nCount == 0)
+ return L"";
+
+ if (start < 0)
+ start = 0;
+
+ if (nCount == -1) {
+ nCount = pdfium::CollectionSize<int>(m_CharList) - start;
+ return m_TextBuf.GetWideString().Mid(start,
+ m_TextBuf.GetWideString().GetLength());
+ }
+ if (nCount <= 0 || m_CharList.empty()) {
+ return L"";
+ }
+ if (nCount + start > pdfium::CollectionSize<int>(m_CharList) - 1) {
+ nCount = pdfium::CollectionSize<int>(m_CharList) - start;
+ }
+ if (nCount <= 0) {
+ return L"";
+ }
+ CheckMarkedContentObject(start, nCount);
+ int startindex = 0;
+ PAGECHAR_INFO charinfo = m_CharList[start];
+ int startOffset = 0;
+ while (charinfo.m_Index == -1) {
+ startOffset++;
+ if (startOffset > nCount ||
+ start + startOffset >= pdfium::CollectionSize<int>(m_CharList)) {
+ return L"";
+ }
+ charinfo = m_CharList[start + startOffset];
+ }
+ startindex = charinfo.m_Index;
+ charinfo = m_CharList[start + nCount - 1];
+ int nCountOffset = 0;
+ while (charinfo.m_Index == -1) {
+ nCountOffset++;
+ if (nCountOffset >= nCount) {
+ return L"";
+ }
+ charinfo = m_CharList[start + nCount - nCountOffset - 1];
+ }
+ nCount = start + nCount - nCountOffset - startindex;
+ if (nCount <= 0) {
+ return L"";
+ }
+ return m_TextBuf.GetWideString().Mid(startindex, nCount);
+}
+
+int CPDF_TextPage::CountRects(int start, int nCount) {
+ if (!m_bIsParsed || start < 0)
+ return -1;
+
+ if (nCount == -1 ||
+ nCount + start > pdfium::CollectionSize<int>(m_CharList)) {
+ nCount = pdfium::CollectionSize<int>(m_CharList) - start;
+ }
+ m_SelRects.RemoveAll();
+ GetRectArray(start, nCount, m_SelRects);
+ return m_SelRects.GetSize();
+}
+
+void CPDF_TextPage::GetRect(int rectIndex,
+ FX_FLOAT& left,
+ FX_FLOAT& top,
+ FX_FLOAT& right,
+ FX_FLOAT& bottom) const {
+ if (!m_bIsParsed)
+ return;
+
+ if (rectIndex < 0 || rectIndex >= m_SelRects.GetSize())
+ return;
+
+ left = m_SelRects.GetAt(rectIndex).left;
+ top = m_SelRects.GetAt(rectIndex).top;
+ right = m_SelRects.GetAt(rectIndex).right;
+ bottom = m_SelRects.GetAt(rectIndex).bottom;
+}
+
+FX_BOOL CPDF_TextPage::GetBaselineRotate(int start, int end, int& Rotate) {
+ if (end == start) {
+ return FALSE;
+ }
+ FPDF_CHAR_INFO info_start;
+ FPDF_CHAR_INFO info_end;
+ GetCharInfo(start, &info_start);
+ GetCharInfo(end, &info_end);
+ while (info_end.m_CharBox.Width() == 0 || info_end.m_CharBox.Height() == 0) {
+ if (--end <= start)
+ return FALSE;
+
+ GetCharInfo(end, &info_end);
+ }
+ FX_FLOAT dx = (info_end.m_OriginX - info_start.m_OriginX);
+ FX_FLOAT dy = (info_end.m_OriginY - info_start.m_OriginY);
+ if (dx == 0) {
+ if (dy > 0) {
+ Rotate = 90;
+ } else if (dy < 0) {
+ Rotate = 270;
+ } else {
+ Rotate = 0;
+ }
+ } else {
+ float a = FXSYS_atan2(dy, dx);
+ Rotate = (int)(a * 180 / FX_PI + 0.5);
+ }
+ if (Rotate < 0) {
+ Rotate = -Rotate;
+ } else if (Rotate > 0) {
+ Rotate = 360 - Rotate;
+ }
+ return TRUE;
+}
+
+FX_BOOL CPDF_TextPage::GetBaselineRotate(const CFX_FloatRect& rect,
+ int& Rotate) {
+ int start, end, count,
+ n = CountBoundedSegments(rect.left, rect.top, rect.right, rect.bottom,
+ TRUE);
+ if (n < 1) {
+ return FALSE;
+ }
+ if (n > 1) {
+ GetBoundedSegment(n - 1, start, count);
+ end = start + count - 1;
+ GetBoundedSegment(0, start, count);
+ } else {
+ GetBoundedSegment(0, start, count);
+ end = start + count - 1;
+ }
+ return GetBaselineRotate(start, end, Rotate);
+}
+FX_BOOL CPDF_TextPage::GetBaselineRotate(int rectIndex, int& Rotate) {
+ if (!m_bIsParsed)
+ return FALSE;
+
+ if (rectIndex < 0 || rectIndex >= m_SelRects.GetSize())
+ return FALSE;
+
+ CFX_FloatRect rect = m_SelRects.GetAt(rectIndex);
+ return GetBaselineRotate(rect, Rotate);
+}
+
+int CPDF_TextPage::CountBoundedSegments(FX_FLOAT left,
+ FX_FLOAT top,
+ FX_FLOAT right,
+ FX_FLOAT bottom,
+ FX_BOOL bContains) {
+ m_Segments.RemoveAll();
+ if (!m_bIsParsed)
+ return -1;
+
+ CFX_FloatRect rect(left, bottom, right, top);
+ rect.Normalize();
+
+ FPDF_SEGMENT segment;
+ segment.m_Start = 0;
+ segment.m_nCount = 0;
+
+ int pos = 0;
+ int segmentStatus = 0;
+ FX_BOOL IsContainPreChar = FALSE;
+ for (const auto& charinfo : m_CharList) {
+ if (bContains && rect.Contains(charinfo.m_CharBox)) {
+ if (segmentStatus == 0 || segmentStatus == 2) {
+ segment.m_Start = pos;
+ segment.m_nCount = 1;
+ segmentStatus = 1;
+ } else if (segmentStatus == 1) {
+ segment.m_nCount++;
+ }
+ IsContainPreChar = TRUE;
+ } else if (!bContains &&
+ (IsRectIntersect(rect, charinfo.m_CharBox) ||
+ rect.Contains(charinfo.m_OriginX, charinfo.m_OriginY))) {
+ if (segmentStatus == 0 || segmentStatus == 2) {
+ segment.m_Start = pos;
+ segment.m_nCount = 1;
+ segmentStatus = 1;
+ } else if (segmentStatus == 1) {
+ segment.m_nCount++;
+ }
+ IsContainPreChar = TRUE;
+ } else if (charinfo.m_Unicode == 32) {
+ if (IsContainPreChar == TRUE) {
+ if (segmentStatus == 0 || segmentStatus == 2) {
+ segment.m_Start = pos;
+ segment.m_nCount = 1;
+ segmentStatus = 1;
+ } else if (segmentStatus == 1) {
+ segment.m_nCount++;
+ }
+ IsContainPreChar = FALSE;
+ } else {
+ if (segmentStatus == 1) {
+ segmentStatus = 2;
+ m_Segments.Add(segment);
+ segment.m_Start = 0;
+ segment.m_nCount = 0;
+ }
+ }
+ } else {
+ if (segmentStatus == 1) {
+ segmentStatus = 2;
+ m_Segments.Add(segment);
+ segment.m_Start = 0;
+ segment.m_nCount = 0;
+ }
+ IsContainPreChar = FALSE;
+ }
+ pos++;
+ }
+ if (segmentStatus == 1) {
+ segmentStatus = 2;
+ m_Segments.Add(segment);
+ segment.m_Start = 0;
+ segment.m_nCount = 0;
+ }
+ return m_Segments.GetSize();
+}
+
+void CPDF_TextPage::GetBoundedSegment(int index, int& start, int& count) const {
+ if (index < 0 || index >= m_Segments.GetSize()) {
+ return;
+ }
+ start = m_Segments.GetAt(index).m_Start;
+ count = m_Segments.GetAt(index).m_nCount;
+}
+
+int CPDF_TextPage::GetWordBreak(int index, int direction) const {
+ if (!m_bIsParsed)
+ return -1;
+
+ if (direction != FPDFTEXT_LEFT && direction != FPDFTEXT_RIGHT)
+ return -1;
+
+ if (index < 0 || index >= pdfium::CollectionSize<int>(m_CharList))
+ return -1;
+
+ const PAGECHAR_INFO& charinfo = m_CharList[index];
+ if (charinfo.m_Index == -1 || charinfo.m_Flag == FPDFTEXT_CHAR_GENERATED) {
+ return index;
+ }
+ if (!IsLetter(charinfo.m_Unicode)) {
+ return index;
+ }
+ int breakPos = index;
+ if (direction == FPDFTEXT_LEFT) {
+ while (--breakPos > 0) {
+ if (!IsLetter(m_CharList[breakPos].m_Unicode))
+ break;
+ }
+ } else if (direction == FPDFTEXT_RIGHT) {
+ while (++breakPos < pdfium::CollectionSize<int>(m_CharList)) {
+ if (!IsLetter(m_CharList[breakPos].m_Unicode))
+ break;
+ }
+ }
+ return breakPos;
+}
+
+int32_t CPDF_TextPage::FindTextlineFlowDirection() {
+ const int32_t nPageWidth = static_cast<int32_t>(m_pPage->GetPageWidth());
+ const int32_t nPageHeight = static_cast<int32_t>(m_pPage->GetPageHeight());
+ std::vector<uint8_t> nHorizontalMask(nPageWidth);
+ std::vector<uint8_t> nVerticalMask(nPageHeight);
+ uint8_t* pDataH = nHorizontalMask.data();
+ uint8_t* pDataV = nVerticalMask.data();
+ int32_t index = 0;
+ FX_FLOAT fLineHeight = 0.0f;
+ if (m_pPage->GetPageObjectList()->empty())
+ return -1;
+
+ for (auto& pPageObj : *m_pPage->GetPageObjectList()) {
+ if (!pPageObj || !pPageObj->IsText())
+ continue;
+
+ int32_t minH =
+ (int32_t)pPageObj->m_Left < 0 ? 0 : (int32_t)pPageObj->m_Left;
+ int32_t maxH = (int32_t)pPageObj->m_Right > nPageWidth
+ ? nPageWidth
+ : (int32_t)pPageObj->m_Right;
+ int32_t minV =
+ (int32_t)pPageObj->m_Bottom < 0 ? 0 : (int32_t)pPageObj->m_Bottom;
+ int32_t maxV = (int32_t)pPageObj->m_Top > nPageHeight
+ ? nPageHeight
+ : (int32_t)pPageObj->m_Top;
+ if (minH >= maxH || minV >= maxV)
+ continue;
+
+ FXSYS_memset(pDataH + minH, 1, maxH - minH);
+ FXSYS_memset(pDataV + minV, 1, maxV - minV);
+ if (fLineHeight <= 0.0f)
+ fLineHeight = pPageObj->m_Top - pPageObj->m_Bottom;
+ }
+ int32_t nStartH = 0;
+ int32_t nEndH = 0;
+ FX_FLOAT nSumH = 0.0f;
+ for (index = 0; index < nPageWidth; index++) {
+ if (1 == nHorizontalMask[index])
+ break;
+ }
+ nStartH = index;
+ for (index = nPageWidth; index > 0; index--) {
+ if (1 == nHorizontalMask[index - 1])
+ break;
+ }
+ nEndH = index;
+ for (index = nStartH; index < nEndH; index++) {
+ nSumH += nHorizontalMask[index];
+ }
+ nSumH /= nEndH - nStartH;
+ int32_t nStartV = 0;
+ int32_t nEndV = 0;
+ FX_FLOAT nSumV = 0.0f;
+ for (index = 0; index < nPageHeight; index++) {
+ if (1 == nVerticalMask[index])
+ break;
+ }
+ nStartV = index;
+ for (index = nPageHeight; index > 0; index--) {
+ if (1 == nVerticalMask[index - 1])
+ break;
+ }
+ nEndV = index;
+ for (index = nStartV; index < nEndV; index++) {
+ nSumV += nVerticalMask[index];
+ }
+ nSumV /= nEndV - nStartV;
+ if ((nEndV - nStartV) < (int32_t)(2 * fLineHeight)) {
+ return 0;
+ }
+ if ((nEndH - nStartH) < (int32_t)(2 * fLineHeight)) {
+ return 1;
+ }
+ if (nSumH > 0.8f) {
+ return 0;
+ }
+ if (nSumH - nSumV > 0.0f) {
+ return 0;
+ }
+ if (nSumV - nSumH > 0.0f) {
+ return 1;
+ }
+ return -1;
+}
+
+void CPDF_TextPage::ProcessObject() {
+ if (m_pPage->GetPageObjectList()->empty())
+ return;
+
+ m_TextlineDir = FindTextlineFlowDirection();
+ const CPDF_PageObjectList* pObjList = m_pPage->GetPageObjectList();
+ for (auto it = pObjList->begin(); it != pObjList->end(); ++it) {
+ if (CPDF_PageObject* pObj = it->get()) {
+ if (pObj->IsText()) {
+ CFX_Matrix matrix;
+ ProcessTextObject(pObj->AsText(), matrix, pObjList, it);
+ } else if (pObj->IsForm()) {
+ CFX_Matrix formMatrix(1, 0, 0, 1, 0, 0);
+ ProcessFormObject(pObj->AsForm(), formMatrix);
+ }
+ }
+ }
+ for (int i = 0; i < m_LineObj.GetSize(); i++)
+ ProcessTextObject(m_LineObj.GetAt(i));
+
+ m_LineObj.RemoveAll();
+ CloseTempLine();
+}
+
+void CPDF_TextPage::ProcessFormObject(CPDF_FormObject* pFormObj,
+ const CFX_Matrix& formMatrix) {
+ CPDF_PageObjectList* pObjectList = pFormObj->m_pForm->GetPageObjectList();
+ if (pObjectList->empty())
+ return;
+
+ CFX_Matrix curFormMatrix;
+ curFormMatrix.Copy(pFormObj->m_FormMatrix);
+ curFormMatrix.Concat(formMatrix);
+
+ for (auto it = pObjectList->begin(); it != pObjectList->end(); ++it) {
+ if (CPDF_PageObject* pPageObj = it->get()) {
+ if (pPageObj->IsText()) {
+ ProcessTextObject(pPageObj->AsText(), curFormMatrix, pObjectList, it);
+ } else if (pPageObj->IsForm()) {
+ ProcessFormObject(pPageObj->AsForm(), curFormMatrix);
+ }
+ }
+ }
+}
+
+int CPDF_TextPage::GetCharWidth(FX_DWORD charCode, CPDF_Font* pFont) const {
+ if (charCode == -1)
+ return 0;
+
+ if (int w = pFont->GetCharWidthF(charCode))
+ return w;
+
+ CFX_ByteString str;
+ pFont->AppendChar(str, charCode);
+ if (int w = pFont->GetStringWidth(str, 1))
+ return w;
+
+ return pFont->GetCharBBox(charCode).Width();
+}
+
+void CPDF_TextPage::OnPiece(CFX_BidiChar* pBidi, CFX_WideString& str) {
+ CFX_BidiChar::Segment seg = pBidi->GetSegmentInfo();
+ if (seg.direction == CFX_BidiChar::RIGHT) {
+ for (int i = seg.start + seg.count; i > seg.start; i--) {
+ m_TextBuf.AppendChar(str.GetAt(i - i));
+ m_CharList.push_back(m_TempCharList[i - 1]);
+ }
+ } else {
+ for (int i = seg.start; i < seg.start + seg.count; i++) {
+ m_TextBuf.AppendChar(str.GetAt(i));
+ m_CharList.push_back(m_TempCharList[i]);
+ }
+ }
+}
+
+void CPDF_TextPage::AddCharInfoByLRDirection(FX_WCHAR wChar,
+ PAGECHAR_INFO info) {
+ if (!IsControlChar(info)) {
+ info.m_Index = m_TextBuf.GetLength();
+ if (wChar >= 0xFB00 && wChar <= 0xFB06) {
+ FX_WCHAR* pDst = NULL;
+ FX_STRSIZE nCount = FX_Unicode_GetNormalization(wChar, pDst);
+ if (nCount >= 1) {
+ pDst = FX_Alloc(FX_WCHAR, nCount);
+ FX_Unicode_GetNormalization(wChar, pDst);
+ for (int nIndex = 0; nIndex < nCount; nIndex++) {
+ PAGECHAR_INFO info2 = info;
+ info2.m_Unicode = pDst[nIndex];
+ info2.m_Flag = FPDFTEXT_CHAR_PIECE;
+ m_TextBuf.AppendChar(info2.m_Unicode);
+ m_CharList.push_back(info2);
+ }
+ FX_Free(pDst);
+ return;
+ }
+ }
+ m_TextBuf.AppendChar(wChar);
+ } else {
+ info.m_Index = -1;
+ }
+ m_CharList.push_back(info);
+}
+
+void CPDF_TextPage::AddCharInfoByRLDirection(FX_WCHAR wChar,
+ PAGECHAR_INFO info) {
+ if (!IsControlChar(info)) {
+ info.m_Index = m_TextBuf.GetLength();
+ wChar = FX_GetMirrorChar(wChar, TRUE, FALSE);
+ FX_WCHAR* pDst = NULL;
+ FX_STRSIZE nCount = FX_Unicode_GetNormalization(wChar, pDst);
+ if (nCount >= 1) {
+ pDst = FX_Alloc(FX_WCHAR, nCount);
+ FX_Unicode_GetNormalization(wChar, pDst);
+ for (int nIndex = 0; nIndex < nCount; nIndex++) {
+ PAGECHAR_INFO info2 = info;
+ info2.m_Unicode = pDst[nIndex];
+ info2.m_Flag = FPDFTEXT_CHAR_PIECE;
+ m_TextBuf.AppendChar(info2.m_Unicode);
+ m_CharList.push_back(info2);
+ }
+ FX_Free(pDst);
+ return;
+ }
+ info.m_Unicode = wChar;
+ m_TextBuf.AppendChar(info.m_Unicode);
+ } else {
+ info.m_Index = -1;
+ }
+ m_CharList.push_back(info);
+}
+
+void CPDF_TextPage::CloseTempLine() {
+ if (m_TempCharList.empty())
+ return;
+
+ CFX_WideString str = m_TempTextBuf.GetWideString();
+ FX_BOOL bPrevSpace = FALSE;
+ for (int i = 0; i < str.GetLength(); i++) {
+ if (str.GetAt(i) != ' ') {
+ bPrevSpace = FALSE;
+ continue;
+ }
+ if (bPrevSpace) {
+ m_TempTextBuf.Delete(i, 1);
+ m_TempCharList.erase(m_TempCharList.begin() + i);
+ str.Delete(i);
+ i--;
+ }
+ bPrevSpace = TRUE;
+ }
+ CFX_BidiString bidi(str);
+ if (m_parserflag == FPDFTEXT_RLTB)
+ bidi.SetOverallDirectionRight();
+ CFX_BidiChar::Direction eCurrentDirection = bidi.OverallDirection();
+ for (const auto& segment : bidi) {
+ if (segment.direction == CFX_BidiChar::RIGHT ||
+ (segment.direction == CFX_BidiChar::NEUTRAL &&
+ eCurrentDirection == CFX_BidiChar::RIGHT)) {
+ eCurrentDirection = CFX_BidiChar::RIGHT;
+ for (int m = segment.start + segment.count; m > segment.start; --m)
+ AddCharInfoByRLDirection(bidi.CharAt(m - 1), m_TempCharList[m - 1]);
+ } else {
+ eCurrentDirection = CFX_BidiChar::LEFT;
+ for (int m = segment.start; m < segment.start + segment.count; m++)
+ AddCharInfoByLRDirection(bidi.CharAt(m), m_TempCharList[m]);
+ }
+ }
+ m_TempCharList.clear();
+ m_TempTextBuf.Delete(0, m_TempTextBuf.GetLength());
+}
+
+void CPDF_TextPage::ProcessTextObject(
+ CPDF_TextObject* pTextObj,
+ const CFX_Matrix& formMatrix,
+ const CPDF_PageObjectList* pObjList,
+ CPDF_PageObjectList::const_iterator ObjPos) {
+ CFX_FloatRect re(pTextObj->m_Left, pTextObj->m_Bottom, pTextObj->m_Right,
+ pTextObj->m_Top);
+ if (FXSYS_fabs(pTextObj->m_Right - pTextObj->m_Left) < 0.01f) {
+ return;
+ }
+ int count = m_LineObj.GetSize();
+ PDFTEXT_Obj Obj;
+ Obj.m_pTextObj = pTextObj;
+ Obj.m_formMatrix = formMatrix;
+ if (count == 0) {
+ m_LineObj.Add(Obj);
+ return;
+ }
+ if (IsSameAsPreTextObject(pTextObj, pObjList, ObjPos)) {
+ return;
+ }
+ PDFTEXT_Obj prev_Obj = m_LineObj.GetAt(count - 1);
+ CPDF_TextObjectItem item;
+ int nItem = prev_Obj.m_pTextObj->CountItems();
+ prev_Obj.m_pTextObj->GetItemInfo(nItem - 1, &item);
+ FX_FLOAT prev_width =
+ GetCharWidth(item.m_CharCode, prev_Obj.m_pTextObj->GetFont()) *
+ prev_Obj.m_pTextObj->GetFontSize() / 1000;
+ CFX_Matrix prev_matrix;
+ prev_Obj.m_pTextObj->GetTextMatrix(&prev_matrix);
+ prev_width = FXSYS_fabs(prev_width);
+ prev_matrix.Concat(prev_Obj.m_formMatrix);
+ prev_width = prev_matrix.TransformDistance(prev_width);
+ pTextObj->GetItemInfo(0, &item);
+ FX_FLOAT this_width = GetCharWidth(item.m_CharCode, pTextObj->GetFont()) *
+ pTextObj->GetFontSize() / 1000;
+ this_width = FXSYS_fabs(this_width);
+ CFX_Matrix this_matrix;
+ pTextObj->GetTextMatrix(&this_matrix);
+ this_width = FXSYS_fabs(this_width);
+ this_matrix.Concat(formMatrix);
+ this_width = this_matrix.TransformDistance(this_width);
+ FX_FLOAT threshold =
+ prev_width > this_width ? prev_width / 4 : this_width / 4;
+ FX_FLOAT prev_x = prev_Obj.m_pTextObj->GetPosX(),
+ prev_y = prev_Obj.m_pTextObj->GetPosY();
+ prev_Obj.m_formMatrix.Transform(prev_x, prev_y);
+ m_DisplayMatrix.Transform(prev_x, prev_y);
+ FX_FLOAT this_x = pTextObj->GetPosX(), this_y = pTextObj->GetPosY();
+ formMatrix.Transform(this_x, this_y);
+ m_DisplayMatrix.Transform(this_x, this_y);
+ if (FXSYS_fabs(this_y - prev_y) > threshold * 2) {
+ for (int i = 0; i < count; i++) {
+ ProcessTextObject(m_LineObj.GetAt(i));
+ }
+ m_LineObj.RemoveAll();
+ m_LineObj.Add(Obj);
+ return;
+ }
+ int i = 0;
+ for (i = count - 1; i >= 0; i--) {
+ PDFTEXT_Obj prev_Obj = m_LineObj.GetAt(i);
+ CFX_Matrix prev_matrix;
+ prev_Obj.m_pTextObj->GetTextMatrix(&prev_matrix);
+ FX_FLOAT Prev_x = prev_Obj.m_pTextObj->GetPosX(),
+ Prev_y = prev_Obj.m_pTextObj->GetPosY();
+ prev_Obj.m_formMatrix.Transform(Prev_x, Prev_y);
+ m_DisplayMatrix.Transform(Prev_x, Prev_y);
+ if (this_x >= Prev_x) {
+ if (i == count - 1) {
+ m_LineObj.Add(Obj);
+ } else {
+ m_LineObj.InsertAt(i + 1, Obj);
+ }
+ break;
+ }
+ }
+ if (i < 0) {
+ m_LineObj.InsertAt(0, Obj);
+ }
+}
+
+int32_t CPDF_TextPage::PreMarkedContent(PDFTEXT_Obj Obj) {
+ CPDF_TextObject* pTextObj = Obj.m_pTextObj;
+ CPDF_ContentMarkData* pMarkData =
+ (CPDF_ContentMarkData*)pTextObj->m_ContentMark.GetObject();
+ if (!pMarkData)
+ return FPDFTEXT_MC_PASS;
+
+ int nContentMark = pMarkData->CountItems();
+ if (nContentMark < 1)
+ return FPDFTEXT_MC_PASS;
+ CFX_WideString actText;
+ FX_BOOL bExist = FALSE;
+ CPDF_Dictionary* pDict = NULL;
+ int n = 0;
+ for (n = 0; n < nContentMark; n++) {
+ CPDF_ContentMarkItem& item = pMarkData->GetItem(n);
+ if (item.GetParamType() == CPDF_ContentMarkItem::ParamType::None)
+ continue;
+ pDict = item.GetParam();
+ CPDF_String* temp =
+ ToString(pDict ? pDict->GetElement("ActualText") : nullptr);
+ if (temp) {
+ bExist = TRUE;
+ actText = temp->GetUnicodeText();
+ }
+ }
+ if (!bExist)
+ return FPDFTEXT_MC_PASS;
+
+ if (m_pPreTextObj) {
+ CPDF_ContentMarkData* pPreMarkData =
+ (CPDF_ContentMarkData*)m_pPreTextObj->m_ContentMark.GetObject();
+ if (pPreMarkData && pPreMarkData->CountItems() == n &&
+ pDict == pPreMarkData->GetItem(n - 1).GetParam()) {
+ return FPDFTEXT_MC_DONE;
+ }
+ }
+ FX_STRSIZE nItems = actText.GetLength();
+ if (nItems < 1)
+ return FPDFTEXT_MC_PASS;
+
+ CPDF_Font* pFont = pTextObj->GetFont();
+ bExist = FALSE;
+ for (FX_STRSIZE i = 0; i < nItems; i++) {
+ if (pFont->CharCodeFromUnicode(actText.GetAt(i)) != -1) {
+ bExist = TRUE;
+ break;
+ }
+ }
+ if (!bExist)
+ return FPDFTEXT_MC_PASS;
+
+ bExist = FALSE;
+ for (FX_STRSIZE i = 0; i < nItems; i++) {
+ FX_WCHAR wChar = actText.GetAt(i);
+ if ((wChar > 0x80 && wChar < 0xFFFD) || (wChar <= 0x80 && isprint(wChar))) {
+ bExist = TRUE;
+ break;
+ }
+ }
+ if (!bExist)
+ return FPDFTEXT_MC_DONE;
+
+ return FPDFTEXT_MC_DELAY;
+}
+
+void CPDF_TextPage::ProcessMarkedContent(PDFTEXT_Obj Obj) {
+ CPDF_TextObject* pTextObj = Obj.m_pTextObj;
+ CPDF_ContentMarkData* pMarkData =
+ (CPDF_ContentMarkData*)pTextObj->m_ContentMark.GetObject();
+ if (!pMarkData)
+ return;
+
+ int nContentMark = pMarkData->CountItems();
+ if (nContentMark < 1)
+ return;
+ CFX_WideString actText;
+ CPDF_Dictionary* pDict = NULL;
+ for (int n = 0; n < nContentMark; n++) {
+ CPDF_ContentMarkItem& item = pMarkData->GetItem(n);
+ if (item.GetParamType() == CPDF_ContentMarkItem::ParamType::None)
+ continue;
+ pDict = item.GetParam();
+ if (pDict)
+ actText = pDict->GetUnicodeTextBy("ActualText");
+ }
+ FX_STRSIZE nItems = actText.GetLength();
+ if (nItems < 1)
+ return;
+
+ CPDF_Font* pFont = pTextObj->GetFont();
+ CFX_Matrix formMatrix = Obj.m_formMatrix;
+ CFX_Matrix matrix;
+ pTextObj->GetTextMatrix(&matrix);
+ matrix.Concat(formMatrix);
+ FX_FLOAT fPosX = pTextObj->GetPosX();
+ FX_FLOAT fPosY = pTextObj->GetPosY();
+ int nCharInfoIndex = m_TextBuf.GetLength();
+ CFX_FloatRect charBox;
+ charBox.top = pTextObj->m_Top;
+ charBox.left = pTextObj->m_Left;
+ charBox.right = pTextObj->m_Right;
+ charBox.bottom = pTextObj->m_Bottom;
+ for (FX_STRSIZE k = 0; k < nItems; k++) {
+ FX_WCHAR wChar = actText.GetAt(k);
+ if (wChar <= 0x80 && !isprint(wChar)) {
+ wChar = 0x20;
+ }
+ if (wChar >= 0xFFFD) {
+ continue;
+ }
+ PAGECHAR_INFO charinfo;
+ charinfo.m_OriginX = fPosX;
+ charinfo.m_OriginY = fPosY;
+ charinfo.m_Index = nCharInfoIndex;
+ charinfo.m_Unicode = wChar;
+ charinfo.m_CharCode = pFont->CharCodeFromUnicode(wChar);
+ charinfo.m_Flag = FPDFTEXT_CHAR_PIECE;
+ charinfo.m_pTextObj = pTextObj;
+ charinfo.m_CharBox.top = charBox.top;
+ charinfo.m_CharBox.left = charBox.left;
+ charinfo.m_CharBox.right = charBox.right;
+ charinfo.m_CharBox.bottom = charBox.bottom;
+ charinfo.m_Matrix.Copy(matrix);
+ m_TempTextBuf.AppendChar(wChar);
+ m_TempCharList.push_back(charinfo);
+ }
+}
+
+void CPDF_TextPage::FindPreviousTextObject() {
+ if (m_TempCharList.empty() && m_CharList.empty())
+ return;
+
+ PAGECHAR_INFO preChar =
+ m_TempCharList.empty() ? m_CharList.back() : m_TempCharList.back();
+
+ if (preChar.m_pTextObj)
+ m_pPreTextObj = preChar.m_pTextObj;
+}
+void CPDF_TextPage::SwapTempTextBuf(int32_t iCharListStartAppend,
+ int32_t iBufStartAppend) {
+ int32_t i = iCharListStartAppend;
+ int32_t j = pdfium::CollectionSize<int32_t>(m_TempCharList) - 1;
+ for (; i < j; i++, j--) {
+ std::swap(m_TempCharList[i], m_TempCharList[j]);
+ std::swap(m_TempCharList[i].m_Index, m_TempCharList[j].m_Index);
+ }
+ FX_WCHAR* pTempBuffer = m_TempTextBuf.GetBuffer();
+ i = iBufStartAppend;
+ j = m_TempTextBuf.GetLength() - 1;
+ for (; i < j; i++, j--) {
+ std::swap(pTempBuffer[i], pTempBuffer[j]);
+ }
+}
+
+FX_BOOL CPDF_TextPage::IsRightToLeft(const CPDF_TextObject* pTextObj,
+ const CPDF_Font* pFont,
+ int nItems) const {
+ CFX_WideString str;
+ for (int32_t i = 0; i < nItems; i++) {
+ CPDF_TextObjectItem item;
+ pTextObj->GetItemInfo(i, &item);
+ if (item.m_CharCode == (FX_DWORD)-1) {
+ continue;
+ }
+ CFX_WideString wstrItem = pFont->UnicodeFromCharCode(item.m_CharCode);
+ FX_WCHAR wChar = wstrItem.GetAt(0);
+ if ((wstrItem.IsEmpty() || wChar == 0) && item.m_CharCode) {
+ wChar = (FX_WCHAR)item.m_CharCode;
+ }
+ if (wChar)
+ str += wChar;
+ }
+ return CFX_BidiString(str).OverallDirection() == CFX_BidiChar::RIGHT;
+}
+
+void CPDF_TextPage::ProcessTextObject(PDFTEXT_Obj Obj) {
+ CPDF_TextObject* pTextObj = Obj.m_pTextObj;
+ if (FXSYS_fabs(pTextObj->m_Right - pTextObj->m_Left) < 0.01f) {
+ return;
+ }
+ CFX_Matrix formMatrix = Obj.m_formMatrix;
+ CPDF_Font* pFont = pTextObj->GetFont();
+ CFX_Matrix matrix;
+ pTextObj->GetTextMatrix(&matrix);
+ matrix.Concat(formMatrix);
+ int32_t bPreMKC = PreMarkedContent(Obj);
+ if (FPDFTEXT_MC_DONE == bPreMKC) {
+ m_pPreTextObj = pTextObj;
+ m_perMatrix.Copy(formMatrix);
+ return;
+ }
+ int result = 0;
+ if (m_pPreTextObj) {
+ result = ProcessInsertObject(pTextObj, formMatrix);
+ if (2 == result) {
+ m_CurlineRect =
+ CFX_FloatRect(Obj.m_pTextObj->m_Left, Obj.m_pTextObj->m_Bottom,
+ Obj.m_pTextObj->m_Right, Obj.m_pTextObj->m_Top);
+ } else {
+ m_CurlineRect.Union(
+ CFX_FloatRect(Obj.m_pTextObj->m_Left, Obj.m_pTextObj->m_Bottom,
+ Obj.m_pTextObj->m_Right, Obj.m_pTextObj->m_Top));
+ }
+ PAGECHAR_INFO generateChar;
+ if (result == 1) {
+ if (GenerateCharInfo(TEXT_BLANK_CHAR, generateChar)) {
+ if (!formMatrix.IsIdentity()) {
+ generateChar.m_Matrix.Copy(formMatrix);
+ }
+ m_TempTextBuf.AppendChar(TEXT_BLANK_CHAR);
+ m_TempCharList.push_back(generateChar);
+ }
+ } else if (result == 2) {
+ CloseTempLine();
+ if (m_TextBuf.GetSize()) {
+ if (GenerateCharInfo(TEXT_RETURN_CHAR, generateChar)) {
+ m_TextBuf.AppendChar(TEXT_RETURN_CHAR);
+ if (!formMatrix.IsIdentity()) {
+ generateChar.m_Matrix.Copy(formMatrix);
+ }
+ m_CharList.push_back(generateChar);
+ }
+ if (GenerateCharInfo(TEXT_LINEFEED_CHAR, generateChar)) {
+ m_TextBuf.AppendChar(TEXT_LINEFEED_CHAR);
+ if (!formMatrix.IsIdentity()) {
+ generateChar.m_Matrix.Copy(formMatrix);
+ }
+ m_CharList.push_back(generateChar);
+ }
+ }
+ } else if (result == 3) {
+ int32_t nChars = pTextObj->CountChars();
+ if (nChars == 1) {
+ CPDF_TextObjectItem item;
+ pTextObj->GetCharInfo(0, &item);
+ CFX_WideString wstrItem =
+ pTextObj->GetFont()->UnicodeFromCharCode(item.m_CharCode);
+ if (wstrItem.IsEmpty()) {
+ wstrItem += (FX_WCHAR)item.m_CharCode;
+ }
+ FX_WCHAR curChar = wstrItem.GetAt(0);
+ if (0x2D == curChar || 0xAD == curChar) {
+ return;
+ }
+ }
+ while (m_TempTextBuf.GetSize() > 0 &&
+ m_TempTextBuf.GetWideString().GetAt(m_TempTextBuf.GetLength() -
+ 1) == 0x20) {
+ m_TempTextBuf.Delete(m_TempTextBuf.GetLength() - 1, 1);
+ m_TempCharList.pop_back();
+ }
+ PAGECHAR_INFO* charinfo = &m_TempCharList.back();
+ m_TempTextBuf.Delete(m_TempTextBuf.GetLength() - 1, 1);
+ charinfo->m_Unicode = 0x2;
+ charinfo->m_Flag = FPDFTEXT_CHAR_HYPHEN;
+ m_TempTextBuf.AppendChar(0xfffe);
+ }
+ } else {
+ m_CurlineRect =
+ CFX_FloatRect(Obj.m_pTextObj->m_Left, Obj.m_pTextObj->m_Bottom,
+ Obj.m_pTextObj->m_Right, Obj.m_pTextObj->m_Top);
+ }
+ if (FPDFTEXT_MC_DELAY == bPreMKC) {
+ ProcessMarkedContent(Obj);
+ m_pPreTextObj = pTextObj;
+ m_perMatrix.Copy(formMatrix);
+ return;
+ }
+ m_pPreTextObj = pTextObj;
+ m_perMatrix.Copy(formMatrix);
+ int nItems = pTextObj->CountItems();
+ FX_FLOAT baseSpace = _CalculateBaseSpace(pTextObj, matrix);
+
+ const FX_BOOL bR2L = IsRightToLeft(pTextObj, pFont, nItems);
+ const FX_BOOL bIsBidiAndMirrorInverse =
+ bR2L && (matrix.a * matrix.d - matrix.b * matrix.c) < 0;
+ int32_t iBufStartAppend = m_TempTextBuf.GetLength();
+ int32_t iCharListStartAppend =
+ pdfium::CollectionSize<int32_t>(m_TempCharList);
+
+ FX_FLOAT spacing = 0;
+ for (int i = 0; i < nItems; i++) {
+ CPDF_TextObjectItem item;
+ PAGECHAR_INFO charinfo;
+ charinfo.m_OriginX = 0;
+ charinfo.m_OriginY = 0;
+ pTextObj->GetItemInfo(i, &item);
+ if (item.m_CharCode == (FX_DWORD)-1) {
+ CFX_WideString str = m_TempTextBuf.GetWideString();
+ if (str.IsEmpty()) {
+ str = m_TextBuf.GetWideString();
+ }
+ if (str.IsEmpty() || str.GetAt(str.GetLength() - 1) == TEXT_BLANK_CHAR) {
+ continue;
+ }
+ FX_FLOAT fontsize_h = pTextObj->m_TextState.GetFontSizeH();
+ spacing = -fontsize_h * item.m_OriginX / 1000;
+ continue;
+ }
+ FX_FLOAT charSpace = pTextObj->m_TextState.GetObject()->m_CharSpace;
+ if (charSpace > 0.001) {
+ spacing += matrix.TransformDistance(charSpace);
+ } else if (charSpace < -0.001) {
+ spacing -= matrix.TransformDistance(FXSYS_fabs(charSpace));
+ }
+ spacing -= baseSpace;
+ if (spacing && i > 0) {
+ int last_width = 0;
+ FX_FLOAT fontsize_h = pTextObj->m_TextState.GetFontSizeH();
+ FX_DWORD space_charcode = pFont->CharCodeFromUnicode(' ');
+ FX_FLOAT threshold = 0;
+ if (space_charcode != -1) {
+ threshold = fontsize_h * pFont->GetCharWidthF(space_charcode) / 1000;
+ }
+ if (threshold > fontsize_h / 3) {
+ threshold = 0;
+ } else {
+ threshold /= 2;
+ }
+ if (threshold == 0) {
+ threshold = fontsize_h;
+ int this_width = FXSYS_abs(GetCharWidth(item.m_CharCode, pFont));
+ threshold = this_width > last_width ? (FX_FLOAT)this_width
+ : (FX_FLOAT)last_width;
+ threshold = _NormalizeThreshold(threshold);
+ threshold = fontsize_h * threshold / 1000;
+ }
+ if (threshold && (spacing && spacing >= threshold)) {
+ charinfo.m_Unicode = TEXT_BLANK_CHAR;
+ charinfo.m_Flag = FPDFTEXT_CHAR_GENERATED;
+ charinfo.m_pTextObj = pTextObj;
+ charinfo.m_Index = m_TextBuf.GetLength();
+ m_TempTextBuf.AppendChar(TEXT_BLANK_CHAR);
+ charinfo.m_CharCode = -1;
+ charinfo.m_Matrix.Copy(formMatrix);
+ matrix.Transform(item.m_OriginX, item.m_OriginY, charinfo.m_OriginX,
+ charinfo.m_OriginY);
+ charinfo.m_CharBox =
+ CFX_FloatRect(charinfo.m_OriginX, charinfo.m_OriginY,
+ charinfo.m_OriginX, charinfo.m_OriginY);
+ m_TempCharList.push_back(charinfo);
+ }
+ if (item.m_CharCode == (FX_DWORD)-1) {
+ continue;
+ }
+ }
+ spacing = 0;
+ CFX_WideString wstrItem = pFont->UnicodeFromCharCode(item.m_CharCode);
+ FX_BOOL bNoUnicode = FALSE;
+ FX_WCHAR wChar = wstrItem.GetAt(0);
+ if ((wstrItem.IsEmpty() || wChar == 0) && item.m_CharCode) {
+ if (wstrItem.IsEmpty()) {
+ wstrItem += (FX_WCHAR)item.m_CharCode;
+ } else {
+ wstrItem.SetAt(0, (FX_WCHAR)item.m_CharCode);
+ }
+ bNoUnicode = TRUE;
+ }
+ charinfo.m_Index = -1;
+ charinfo.m_CharCode = item.m_CharCode;
+ if (bNoUnicode) {
+ charinfo.m_Flag = FPDFTEXT_CHAR_UNUNICODE;
+ } else {
+ charinfo.m_Flag = FPDFTEXT_CHAR_NORMAL;
+ }
+ charinfo.m_pTextObj = pTextObj;
+ charinfo.m_OriginX = 0, charinfo.m_OriginY = 0;
+ matrix.Transform(item.m_OriginX, item.m_OriginY, charinfo.m_OriginX,
+ charinfo.m_OriginY);
+ FX_RECT rect =
+ charinfo.m_pTextObj->GetFont()->GetCharBBox(charinfo.m_CharCode);
+ charinfo.m_CharBox.top =
+ rect.top * pTextObj->GetFontSize() / 1000 + item.m_OriginY;
+ charinfo.m_CharBox.left =
+ rect.left * pTextObj->GetFontSize() / 1000 + item.m_OriginX;
+ charinfo.m_CharBox.right =
+ rect.right * pTextObj->GetFontSize() / 1000 + item.m_OriginX;
+ charinfo.m_CharBox.bottom =
+ rect.bottom * pTextObj->GetFontSize() / 1000 + item.m_OriginY;
+ if (fabsf(charinfo.m_CharBox.top - charinfo.m_CharBox.bottom) < 0.01f) {
+ charinfo.m_CharBox.top =
+ charinfo.m_CharBox.bottom + pTextObj->GetFontSize();
+ }
+ if (fabsf(charinfo.m_CharBox.right - charinfo.m_CharBox.left) < 0.01f) {
+ charinfo.m_CharBox.right =
+ charinfo.m_CharBox.left + pTextObj->GetCharWidth(charinfo.m_CharCode);
+ }
+ matrix.TransformRect(charinfo.m_CharBox);
+ charinfo.m_Matrix.Copy(matrix);
+ if (wstrItem.IsEmpty()) {
+ charinfo.m_Unicode = 0;
+ m_TempCharList.push_back(charinfo);
+ m_TempTextBuf.AppendChar(0xfffe);
+ continue;
+ } else {
+ int nTotal = wstrItem.GetLength();
+ FX_BOOL bDel = FALSE;
+ const int count =
+ std::min(pdfium::CollectionSize<int>(m_TempCharList), 7);
+ FX_FLOAT threshold = charinfo.m_Matrix.TransformXDistance(
+ (FX_FLOAT)TEXT_CHARRATIO_GAPDELTA * pTextObj->GetFontSize());
+ for (int n = pdfium::CollectionSize<int>(m_TempCharList);
+ n > pdfium::CollectionSize<int>(m_TempCharList) - count; n--) {
+ const PAGECHAR_INFO& charinfo1 = m_TempCharList[n - 1];
+ if (charinfo1.m_CharCode == charinfo.m_CharCode &&
+ charinfo1.m_pTextObj->GetFont() == charinfo.m_pTextObj->GetFont() &&
+ FXSYS_fabs(charinfo1.m_OriginX - charinfo.m_OriginX) < threshold &&
+ FXSYS_fabs(charinfo1.m_OriginY - charinfo.m_OriginY) < threshold) {
+ bDel = TRUE;
+ break;
+ }
+ }
+ if (!bDel) {
+ for (int nIndex = 0; nIndex < nTotal; nIndex++) {
+ charinfo.m_Unicode = wstrItem.GetAt(nIndex);
+ if (charinfo.m_Unicode) {
+ charinfo.m_Index = m_TextBuf.GetLength();
+ m_TempTextBuf.AppendChar(charinfo.m_Unicode);
+ } else {
+ m_TempTextBuf.AppendChar(0xfffe);
+ }
+ m_TempCharList.push_back(charinfo);
+ }
+ } else if (i == 0) {
+ CFX_WideString str = m_TempTextBuf.GetWideString();
+ if (!str.IsEmpty() &&
+ str.GetAt(str.GetLength() - 1) == TEXT_BLANK_CHAR) {
+ m_TempTextBuf.Delete(m_TempTextBuf.GetLength() - 1, 1);
+ m_TempCharList.pop_back();
+ }
+ }
+ }
+ }
+ if (bIsBidiAndMirrorInverse) {
+ SwapTempTextBuf(iCharListStartAppend, iBufStartAppend);
+ }
+}
+
+int32_t CPDF_TextPage::GetTextObjectWritingMode(
+ const CPDF_TextObject* pTextObj) {
+ int32_t nChars = pTextObj->CountChars();
+ if (nChars == 1) {
+ return m_TextlineDir;
+ }
+ CPDF_TextObjectItem first, last;
+ pTextObj->GetCharInfo(0, &first);
+ pTextObj->GetCharInfo(nChars - 1, &last);
+ CFX_Matrix textMatrix;
+ pTextObj->GetTextMatrix(&textMatrix);
+ textMatrix.TransformPoint(first.m_OriginX, first.m_OriginY);
+ textMatrix.TransformPoint(last.m_OriginX, last.m_OriginY);
+ FX_FLOAT dX = FXSYS_fabs(last.m_OriginX - first.m_OriginX);
+ FX_FLOAT dY = FXSYS_fabs(last.m_OriginY - first.m_OriginY);
+ if (dX <= 0.0001f && dY <= 0.0001f) {
+ return -1;
+ }
+ CFX_VectorF v(dX, dY);
+ v.Normalize();
+ if (v.y <= 0.0872f) {
+ return v.x <= 0.0872f ? m_TextlineDir : 0;
+ }
+ if (v.x <= 0.0872f) {
+ return 1;
+ }
+ return m_TextlineDir;
+}
+FX_BOOL CPDF_TextPage::IsHyphen(FX_WCHAR curChar) {
+ CFX_WideString strCurText = m_TempTextBuf.GetWideString();
+ if (strCurText.GetLength() == 0) {
+ strCurText = m_TextBuf.GetWideString();
+ }
+ FX_STRSIZE nCount = strCurText.GetLength();
+ int nIndex = nCount - 1;
+ FX_WCHAR wcTmp = strCurText.GetAt(nIndex);
+ while (wcTmp == 0x20 && nIndex <= nCount - 1 && nIndex >= 0) {
+ wcTmp = strCurText.GetAt(--nIndex);
+ }
+ if (0x2D == wcTmp || 0xAD == wcTmp) {
+ if (--nIndex > 0) {
+ FX_WCHAR preChar = strCurText.GetAt((nIndex));
+ if (((preChar >= L'A' && preChar <= L'Z') ||
+ (preChar >= L'a' && preChar <= L'z')) &&
+ ((curChar >= L'A' && curChar <= L'Z') ||
+ (curChar >= L'a' && curChar <= L'z'))) {
+ return TRUE;
+ }
+ }
+ const PAGECHAR_INFO* preInfo;
+ if (!m_TempCharList.empty()) {
+ preInfo = &m_TempCharList.back();
+ } else if (!m_CharList.empty()) {
+ preInfo = &m_CharList.back();
+ } else {
+ return FALSE;
+ }
+ if (FPDFTEXT_CHAR_PIECE == preInfo->m_Flag &&
+ (0xAD == preInfo->m_Unicode || 0x2D == preInfo->m_Unicode)) {
+ return TRUE;
+ }
+ }
+ return FALSE;
+}
+
+int CPDF_TextPage::ProcessInsertObject(const CPDF_TextObject* pObj,
+ const CFX_Matrix& formMatrix) {
+ FindPreviousTextObject();
+ FX_BOOL bNewline = FALSE;
+ int WritingMode = GetTextObjectWritingMode(pObj);
+ if (WritingMode == -1) {
+ WritingMode = GetTextObjectWritingMode(m_pPreTextObj);
+ }
+ CFX_FloatRect this_rect(pObj->m_Left, pObj->m_Bottom, pObj->m_Right,
+ pObj->m_Top);
+ CFX_FloatRect prev_rect(m_pPreTextObj->m_Left, m_pPreTextObj->m_Bottom,
+ m_pPreTextObj->m_Right, m_pPreTextObj->m_Top);
+ CPDF_TextObjectItem PrevItem, item;
+ int nItem = m_pPreTextObj->CountItems();
+ m_pPreTextObj->GetItemInfo(nItem - 1, &PrevItem);
+ pObj->GetItemInfo(0, &item);
+ CFX_WideString wstrItem =
+ pObj->GetFont()->UnicodeFromCharCode(item.m_CharCode);
+ if (wstrItem.IsEmpty()) {
+ wstrItem += (FX_WCHAR)item.m_CharCode;
+ }
+ FX_WCHAR curChar = wstrItem.GetAt(0);
+ if (WritingMode == 0) {
+ if (this_rect.Height() > 4.5 && prev_rect.Height() > 4.5) {
+ FX_FLOAT top =
+ this_rect.top < prev_rect.top ? this_rect.top : prev_rect.top;
+ FX_FLOAT bottom = this_rect.bottom > prev_rect.bottom ? this_rect.bottom
+ : prev_rect.bottom;
+ if (bottom >= top) {
+ if (IsHyphen(curChar)) {
+ return 3;
+ }
+ return 2;
+ }
+ }
+ } else if (WritingMode == 1) {
+ if (this_rect.Width() > pObj->GetFontSize() * 0.1f &&
+ prev_rect.Width() > m_pPreTextObj->GetFontSize() * 0.1f) {
+ FX_FLOAT left = this_rect.left > m_CurlineRect.left ? this_rect.left
+ : m_CurlineRect.left;
+ FX_FLOAT right = this_rect.right < m_CurlineRect.right
+ ? this_rect.right
+ : m_CurlineRect.right;
+ if (right <= left) {
+ if (IsHyphen(curChar)) {
+ return 3;
+ }
+ return 2;
+ }
+ }
+ }
+ FX_FLOAT last_pos = PrevItem.m_OriginX;
+ int nLastWidth = GetCharWidth(PrevItem.m_CharCode, m_pPreTextObj->GetFont());
+ FX_FLOAT last_width = nLastWidth * m_pPreTextObj->GetFontSize() / 1000;
+ last_width = FXSYS_fabs(last_width);
+ int nThisWidth = GetCharWidth(item.m_CharCode, pObj->GetFont());
+ FX_FLOAT this_width = nThisWidth * pObj->GetFontSize() / 1000;
+ this_width = FXSYS_fabs(this_width);
+ FX_FLOAT threshold =
+ last_width > this_width ? last_width / 4 : this_width / 4;
+ CFX_Matrix prev_matrix, prev_reverse;
+ m_pPreTextObj->GetTextMatrix(&prev_matrix);
+ prev_matrix.Concat(m_perMatrix);
+ prev_reverse.SetReverse(prev_matrix);
+ FX_FLOAT x = pObj->GetPosX();
+ FX_FLOAT y = pObj->GetPosY();
+ formMatrix.Transform(x, y);
+ prev_reverse.Transform(x, y);
+ if (last_width < this_width) {
+ threshold = prev_reverse.TransformDistance(threshold);
+ }
+ CFX_FloatRect rect1(m_pPreTextObj->m_Left, pObj->m_Bottom,
+ m_pPreTextObj->m_Right, pObj->m_Top);
+ CFX_FloatRect rect2(m_pPreTextObj->m_Left, m_pPreTextObj->m_Bottom,
+ m_pPreTextObj->m_Right, m_pPreTextObj->m_Top);
+ CFX_FloatRect rect3 = rect1;
+ rect1.Intersect(rect2);
+ if (WritingMode == 0) {
+ if ((rect1.IsEmpty() && rect2.Height() > 5 && rect3.Height() > 5) ||
+ ((y > threshold * 2 || y < threshold * -3) &&
+ (FXSYS_fabs(y) < 1 ? FXSYS_fabs(x) < FXSYS_fabs(y) : TRUE))) {
+ bNewline = TRUE;
+ if (nItem > 1) {
+ CPDF_TextObjectItem tempItem;
+ m_pPreTextObj->GetItemInfo(0, &tempItem);
+ CFX_Matrix m;
+ m_pPreTextObj->GetTextMatrix(&m);
+ if (PrevItem.m_OriginX > tempItem.m_OriginX &&
+ m_DisplayMatrix.a > 0.9 && m_DisplayMatrix.b < 0.1 &&
+ m_DisplayMatrix.c < 0.1 && m_DisplayMatrix.d < -0.9 && m.b < 0.1 &&
+ m.c < 0.1) {
+ CFX_FloatRect re(0, m_pPreTextObj->m_Bottom, 1000,
+ m_pPreTextObj->m_Top);
+ if (re.Contains(pObj->GetPosX(), pObj->GetPosY())) {
+ bNewline = FALSE;
+ } else {
+ CFX_FloatRect re(0, pObj->m_Bottom, 1000, pObj->m_Top);
+ if (re.Contains(m_pPreTextObj->GetPosX(),
+ m_pPreTextObj->GetPosY())) {
+ bNewline = FALSE;
+ }
+ }
+ }
+ }
+ }
+ }
+ if (bNewline)
+ return IsHyphen(curChar) ? 3 : 2;
+
+ int32_t nChars = pObj->CountChars();
+ if (nChars == 1 && (0x2D == curChar || 0xAD == curChar) &&
+ IsHyphen(curChar)) {
+ return 3;
+ }
+ CFX_WideString PrevStr =
+ m_pPreTextObj->GetFont()->UnicodeFromCharCode(PrevItem.m_CharCode);
+ FX_WCHAR preChar = PrevStr.GetAt(PrevStr.GetLength() - 1);
+ CFX_Matrix matrix;
+ pObj->GetTextMatrix(&matrix);
+ matrix.Concat(formMatrix);
+ threshold = (FX_FLOAT)(nLastWidth > nThisWidth ? nLastWidth : nThisWidth);
+ threshold = threshold > 400
+ ? (threshold < 700
+ ? threshold / 4
+ : (threshold > 800 ? threshold / 6 : threshold / 5))
+ : (threshold / 2);
+ if (nLastWidth >= nThisWidth) {
+ threshold *= FXSYS_fabs(m_pPreTextObj->GetFontSize());
+ } else {
+ threshold *= FXSYS_fabs(pObj->GetFontSize());
+ threshold = matrix.TransformDistance(threshold);
+ threshold = prev_reverse.TransformDistance(threshold);
+ }
+ threshold /= 1000;
+ if ((threshold < 1.4881 && threshold > 1.4879) ||
+ (threshold < 1.39001 && threshold > 1.38999)) {
+ threshold *= 1.5;
+ }
+ if (FXSYS_fabs(last_pos + last_width - x) > threshold && curChar != L' ' &&
+ preChar != L' ') {
+ if (curChar != L' ' && preChar != L' ') {
+ if ((x - last_pos - last_width) > threshold ||
+ (last_pos - x - last_width) > threshold) {
+ return 1;
+ }
+ if (x < 0 && (last_pos - x - last_width) > threshold) {
+ return 1;
+ }
+ if ((x - last_pos - last_width) > this_width ||
+ (x - last_pos - this_width) > last_width) {
+ return 1;
+ }
+ }
+ }
+ return 0;
+}
+
+FX_BOOL CPDF_TextPage::IsSameTextObject(CPDF_TextObject* pTextObj1,
+ CPDF_TextObject* pTextObj2) {
+ if (!pTextObj1 || !pTextObj2) {
+ return FALSE;
+ }
+ CFX_FloatRect rcPreObj(pTextObj2->m_Left, pTextObj2->m_Bottom,
+ pTextObj2->m_Right, pTextObj2->m_Top);
+ CFX_FloatRect rcCurObj(pTextObj1->m_Left, pTextObj1->m_Bottom,
+ pTextObj1->m_Right, pTextObj1->m_Top);
+ if (rcPreObj.IsEmpty() && rcCurObj.IsEmpty()) {
+ FX_FLOAT dbXdif = FXSYS_fabs(rcPreObj.left - rcCurObj.left);
+ size_t nCount = m_CharList.size();
+ if (nCount >= 2) {
+ PAGECHAR_INFO perCharTemp = m_CharList[nCount - 2];
+ FX_FLOAT dbSpace = perCharTemp.m_CharBox.Width();
+ if (dbXdif > dbSpace) {
+ return FALSE;
+ }
+ }
+ }
+ if (!rcPreObj.IsEmpty() || !rcCurObj.IsEmpty()) {
+ rcPreObj.Intersect(rcCurObj);
+ if (rcPreObj.IsEmpty()) {
+ return FALSE;
+ }
+ if (FXSYS_fabs(rcPreObj.Width() - rcCurObj.Width()) >
+ rcCurObj.Width() / 2) {
+ return FALSE;
+ }
+ if (pTextObj2->GetFontSize() != pTextObj1->GetFontSize()) {
+ return FALSE;
+ }
+ }
+ int nPreCount = pTextObj2->CountItems();
+ int nCurCount = pTextObj1->CountItems();
+ if (nPreCount != nCurCount) {
+ return FALSE;
+ }
+ CPDF_TextObjectItem itemPer, itemCur;
+ for (int i = 0; i < nPreCount; i++) {
+ pTextObj2->GetItemInfo(i, &itemPer);
+ pTextObj1->GetItemInfo(i, &itemCur);
+ if (itemCur.m_CharCode != itemPer.m_CharCode) {
+ return FALSE;
+ }
+ }
+ if (FXSYS_fabs(pTextObj1->GetPosX() - pTextObj2->GetPosX()) >
+ GetCharWidth(itemPer.m_CharCode, pTextObj2->GetFont()) *
+ pTextObj2->GetFontSize() / 1000 * 0.9 ||
+ FXSYS_fabs(pTextObj1->GetPosY() - pTextObj2->GetPosY()) >
+ std::max(std::max(rcPreObj.Height(), rcPreObj.Width()),
+ pTextObj2->GetFontSize()) /
+ 8) {
+ return FALSE;
+ }
+ return TRUE;
+}
+FX_BOOL CPDF_TextPage::IsSameAsPreTextObject(
+ CPDF_TextObject* pTextObj,
+ const CPDF_PageObjectList* pObjList,
+ CPDF_PageObjectList::const_iterator iter) {
+ int i = 0;
+ while (i < 5 && iter != pObjList->begin()) {
+ --iter;
+ CPDF_PageObject* pOtherObj = iter->get();
+ if (pOtherObj == pTextObj || !pOtherObj->IsText())
+ continue;
+ if (IsSameTextObject(pOtherObj->AsText(), pTextObj))
+ return TRUE;
+ ++i;
+ }
+ return FALSE;
+}
+
+FX_BOOL CPDF_TextPage::GenerateCharInfo(FX_WCHAR unicode, PAGECHAR_INFO& info) {
+ const PAGECHAR_INFO* preChar;
+ if (!m_TempCharList.empty()) {
+ preChar = &m_TempCharList.back();
+ } else if (!m_CharList.empty()) {
+ preChar = &m_CharList.back();
+ } else {
+ return FALSE;
+ }
+ info.m_Index = m_TextBuf.GetLength();
+ info.m_Unicode = unicode;
+ info.m_pTextObj = NULL;
+ info.m_CharCode = -1;
+ info.m_Flag = FPDFTEXT_CHAR_GENERATED;
+ int preWidth = 0;
+ if (preChar->m_pTextObj && preChar->m_CharCode != (FX_DWORD)-1)
+ preWidth =
+ GetCharWidth(preChar->m_CharCode, preChar->m_pTextObj->GetFont());
+
+ FX_FLOAT fFontSize = preChar->m_pTextObj ? preChar->m_pTextObj->GetFontSize()
+ : preChar->m_CharBox.Height();
+ if (!fFontSize)
+ fFontSize = kDefaultFontSize;
+
+ info.m_OriginX = preChar->m_OriginX + preWidth * (fFontSize) / 1000;
+ info.m_OriginY = preChar->m_OriginY;
+ info.m_CharBox = CFX_FloatRect(info.m_OriginX, info.m_OriginY, info.m_OriginX,
+ info.m_OriginY);
+ return TRUE;
+}
+
+FX_BOOL CPDF_TextPage::IsRectIntersect(const CFX_FloatRect& rect1,
+ const CFX_FloatRect& rect2) {
+ CFX_FloatRect rect = rect1;
+ rect.Intersect(rect2);
+ return !rect.IsEmpty();
+}
+
+FX_BOOL CPDF_TextPage::IsLetter(FX_WCHAR unicode) {
+ if (unicode < L'A') {
+ return FALSE;
+ }
+ if (unicode > L'Z' && unicode < L'a') {
+ return FALSE;
+ }
+ if (unicode > L'z') {
+ return FALSE;
+ }
+ return TRUE;
+}
+
+CPDF_TextPageFind::CPDF_TextPageFind(const IPDF_TextPage* pTextPage)
+ : m_pTextPage(pTextPage),
+ m_flags(0),
+ m_findNextStart(-1),
+ m_findPreStart(-1),
+ m_bMatchCase(FALSE),
+ m_bMatchWholeWord(FALSE),
+ m_resStart(0),
+ m_resEnd(-1),
+ m_IsFind(FALSE) {
+ m_strText = m_pTextPage->GetPageText();
+ int nCount = pTextPage->CountChars();
+ if (nCount) {
+ m_CharIndex.push_back(0);
+ }
+ for (int i = 0; i < nCount; i++) {
+ FPDF_CHAR_INFO info;
+ pTextPage->GetCharInfo(i, &info);
+ int indexSize = pdfium::CollectionSize<int>(m_CharIndex);
+ if (info.m_Flag == CHAR_NORMAL || info.m_Flag == CHAR_GENERATED) {
+ if (indexSize % 2) {
+ m_CharIndex.push_back(1);
+ } else {
+ if (indexSize <= 0) {
+ continue;
+ }
+ m_CharIndex[indexSize - 1] += 1;
+ }
+ } else {
+ if (indexSize % 2) {
+ if (indexSize <= 0) {
+ continue;
+ }
+ m_CharIndex[indexSize - 1] = i + 1;
+ } else {
+ m_CharIndex.push_back(i + 1);
+ }
+ }
+ }
+ int indexSize = pdfium::CollectionSize<int>(m_CharIndex);
+ if (indexSize % 2) {
+ m_CharIndex.erase(m_CharIndex.begin() + indexSize - 1);
+ }
+}
+
+int CPDF_TextPageFind::GetCharIndex(int index) const {
+ return m_pTextPage->CharIndexFromTextIndex(index);
+}
+
+FX_BOOL CPDF_TextPageFind::FindFirst(const CFX_WideString& findwhat,
+ int flags,
+ int startPos) {
+ if (!m_pTextPage) {
+ return FALSE;
+ }
+ if (m_strText.IsEmpty() || m_bMatchCase != (flags & FPDFTEXT_MATCHCASE)) {
+ m_strText = m_pTextPage->GetPageText();
+ }
+ CFX_WideString findwhatStr = findwhat;
+ m_findWhat = findwhatStr;
+ m_flags = flags;
+ m_bMatchCase = flags & FPDFTEXT_MATCHCASE;
+ if (m_strText.IsEmpty()) {
+ m_IsFind = FALSE;
+ return TRUE;
+ }
+ FX_STRSIZE len = findwhatStr.GetLength();
+ if (!m_bMatchCase) {
+ findwhatStr.MakeLower();
+ m_strText.MakeLower();
+ }
+ m_bMatchWholeWord = flags & FPDFTEXT_MATCHWHOLEWORD;
+ m_findNextStart = startPos;
+ if (startPos == -1) {
+ m_findPreStart = m_strText.GetLength() - 1;
+ } else {
+ m_findPreStart = startPos;
+ }
+ m_csFindWhatArray.clear();
+ int i = 0;
+ while (i < len) {
+ if (findwhatStr.GetAt(i) != ' ') {
+ break;
+ }
+ i++;
+ }
+ if (i < len) {
+ ExtractFindWhat(findwhatStr);
+ } else {
+ m_csFindWhatArray.push_back(findwhatStr);
+ }
+ if (m_csFindWhatArray.empty()) {
+ return FALSE;
+ }
+ m_IsFind = TRUE;
+ m_resStart = 0;
+ m_resEnd = -1;
+ return TRUE;
+}
+
+FX_BOOL CPDF_TextPageFind::FindNext() {
+ if (!m_pTextPage) {
+ return FALSE;
+ }
+ m_resArray.RemoveAll();
+ if (m_findNextStart == -1) {
+ return FALSE;
+ }
+ if (m_strText.IsEmpty()) {
+ m_IsFind = FALSE;
+ return m_IsFind;
+ }
+ int strLen = m_strText.GetLength();
+ if (m_findNextStart > strLen - 1) {
+ m_IsFind = FALSE;
+ return m_IsFind;
+ }
+ int nCount = pdfium::CollectionSize<int>(m_csFindWhatArray);
+ int nResultPos = 0;
+ int nStartPos = 0;
+ nStartPos = m_findNextStart;
+ FX_BOOL bSpaceStart = FALSE;
+ for (int iWord = 0; iWord < nCount; iWord++) {
+ CFX_WideString csWord = m_csFindWhatArray[iWord];
+ if (csWord.IsEmpty()) {
+ if (iWord == nCount - 1) {
+ FX_WCHAR strInsert = m_strText.GetAt(nStartPos);
+ if (strInsert == TEXT_LINEFEED_CHAR || strInsert == TEXT_BLANK_CHAR ||
+ strInsert == TEXT_RETURN_CHAR || strInsert == 160) {
+ nResultPos = nStartPos + 1;
+ break;
+ }
+ iWord = -1;
+ } else if (iWord == 0) {
+ bSpaceStart = TRUE;
+ }
+ continue;
+ }
+ int endIndex;
+ nResultPos = m_strText.Find(csWord.c_str(), nStartPos);
+ if (nResultPos == -1) {
+ m_IsFind = FALSE;
+ return m_IsFind;
+ }
+ endIndex = nResultPos + csWord.GetLength() - 1;
+ if (iWord == 0) {
+ m_resStart = nResultPos;
+ }
+ FX_BOOL bMatch = TRUE;
+ if (iWord != 0 && !bSpaceStart) {
+ int PreResEndPos = nStartPos;
+ int curChar = csWord.GetAt(0);
+ CFX_WideString lastWord = m_csFindWhatArray[iWord - 1];
+ int lastChar = lastWord.GetAt(lastWord.GetLength() - 1);
+ if (nStartPos == nResultPos &&
+ !(_IsIgnoreSpaceCharacter(lastChar) ||
+ _IsIgnoreSpaceCharacter(curChar))) {
+ bMatch = FALSE;
+ }
+ for (int d = PreResEndPos; d < nResultPos; d++) {
+ FX_WCHAR strInsert = m_strText.GetAt(d);
+ if (strInsert != TEXT_LINEFEED_CHAR && strInsert != TEXT_BLANK_CHAR &&
+ strInsert != TEXT_RETURN_CHAR && strInsert != 160) {
+ bMatch = FALSE;
+ break;
+ }
+ }
+ } else if (bSpaceStart) {
+ if (nResultPos > 0) {
+ FX_WCHAR strInsert = m_strText.GetAt(nResultPos - 1);
+ if (strInsert != TEXT_LINEFEED_CHAR && strInsert != TEXT_BLANK_CHAR &&
+ strInsert != TEXT_RETURN_CHAR && strInsert != 160) {
+ bMatch = FALSE;
+ m_resStart = nResultPos;
+ } else {
+ m_resStart = nResultPos - 1;
+ }
+ }
+ }
+ if (m_bMatchWholeWord && bMatch) {
+ bMatch = IsMatchWholeWord(m_strText, nResultPos, endIndex);
+ }
+ nStartPos = endIndex + 1;
+ if (!bMatch) {
+ iWord = -1;
+ if (bSpaceStart) {
+ nStartPos = m_resStart + m_csFindWhatArray[1].GetLength();
+ } else {
+ nStartPos = m_resStart + m_csFindWhatArray[0].GetLength();
+ }
+ }
+ }
+ m_resEnd = nResultPos + m_csFindWhatArray.back().GetLength() - 1;
+ m_IsFind = TRUE;
+ int resStart = GetCharIndex(m_resStart);
+ int resEnd = GetCharIndex(m_resEnd);
+ m_pTextPage->GetRectArray(resStart, resEnd - resStart + 1, m_resArray);
+ if (m_flags & FPDFTEXT_CONSECUTIVE) {
+ m_findNextStart = m_resStart + 1;
+ m_findPreStart = m_resEnd - 1;
+ } else {
+ m_findNextStart = m_resEnd + 1;
+ m_findPreStart = m_resStart - 1;
+ }
+ return m_IsFind;
+}
+
+FX_BOOL CPDF_TextPageFind::FindPrev() {
+ if (!m_pTextPage) {
+ return FALSE;
+ }
+ m_resArray.RemoveAll();
+ if (m_strText.IsEmpty() || m_findPreStart < 0) {
+ m_IsFind = FALSE;
+ return m_IsFind;
+ }
+ CPDF_TextPageFind findEngine(m_pTextPage);
+ FX_BOOL ret = findEngine.FindFirst(m_findWhat, m_flags);
+ if (!ret) {
+ m_IsFind = FALSE;
+ return m_IsFind;
+ }
+ int order = -1, MatchedCount = 0;
+ while (ret) {
+ ret = findEngine.FindNext();
+ if (ret) {
+ int order1 = findEngine.GetCurOrder();
+ int MatchedCount1 = findEngine.GetMatchedCount();
+ if (((order1 + MatchedCount1) - 1) > m_findPreStart) {
+ break;
+ }
+ order = order1;
+ MatchedCount = MatchedCount1;
+ }
+ }
+ if (order == -1) {
+ m_IsFind = FALSE;
+ return m_IsFind;
+ }
+ m_resStart = m_pTextPage->TextIndexFromCharIndex(order);
+ m_resEnd = m_pTextPage->TextIndexFromCharIndex(order + MatchedCount - 1);
+ m_IsFind = TRUE;
+ m_pTextPage->GetRectArray(order, MatchedCount, m_resArray);
+ if (m_flags & FPDFTEXT_CONSECUTIVE) {
+ m_findNextStart = m_resStart + 1;
+ m_findPreStart = m_resEnd - 1;
+ } else {
+ m_findNextStart = m_resEnd + 1;
+ m_findPreStart = m_resStart - 1;
+ }
+ return m_IsFind;
+}
+
+void CPDF_TextPageFind::ExtractFindWhat(const CFX_WideString& findwhat) {
+ if (findwhat.IsEmpty()) {
+ return;
+ }
+ int index = 0;
+ while (1) {
+ CFX_WideString csWord = TEXT_EMPTY;
+ int ret =
+ ExtractSubString(csWord, findwhat.c_str(), index, TEXT_BLANK_CHAR);
+ if (csWord.IsEmpty()) {
+ if (ret) {
+ m_csFindWhatArray.push_back(L"");
+ index++;
+ continue;
+ } else {
+ break;
+ }
+ }
+ int pos = 0;
+ while (pos < csWord.GetLength()) {
+ CFX_WideString curStr = csWord.Mid(pos, 1);
+ FX_WCHAR curChar = csWord.GetAt(pos);
+ if (_IsIgnoreSpaceCharacter(curChar)) {
+ if (pos > 0 && curChar == 0x2019) {
+ pos++;
+ continue;
+ }
+ if (pos > 0) {
+ m_csFindWhatArray.push_back(csWord.Mid(0, pos));
+ }
+ m_csFindWhatArray.push_back(curStr);
+ if (pos == csWord.GetLength() - 1) {
+ csWord.Empty();
+ break;
+ }
+ csWord = csWord.Right(csWord.GetLength() - pos - 1);
+ pos = 0;
+ continue;
+ }
+ pos++;
+ }
+ if (!csWord.IsEmpty()) {
+ m_csFindWhatArray.push_back(csWord);
+ }
+ index++;
+ }
+}
+
+FX_BOOL CPDF_TextPageFind::IsMatchWholeWord(const CFX_WideString& csPageText,
+ int startPos,
+ int endPos) {
+ FX_WCHAR char_left = 0;
+ FX_WCHAR char_right = 0;
+ int char_count = endPos - startPos + 1;
+ if (char_count < 1) {
+ return FALSE;
+ }
+ if (char_count == 1 && csPageText.GetAt(startPos) > 255) {
+ return TRUE;
+ }
+ if (startPos - 1 >= 0) {
+ char_left = csPageText.GetAt(startPos - 1);
+ }
+ if (startPos + char_count < csPageText.GetLength()) {
+ char_right = csPageText.GetAt(startPos + char_count);
+ }
+ if ((char_left > 'A' && char_left < 'a') ||
+ (char_left > 'a' && char_left < 'z') ||
+ (char_left > 0xfb00 && char_left < 0xfb06) || std::iswdigit(char_left) ||
+ (char_right > 'A' && char_right < 'a') ||
+ (char_right > 'a' && char_right < 'z') ||
+ (char_right > 0xfb00 && char_right < 0xfb06) ||
+ std::iswdigit(char_right)) {
+ return FALSE;
+ }
+ if (!(('A' > char_left || char_left > 'Z') &&
+ ('a' > char_left || char_left > 'z') &&
+ ('A' > char_right || char_right > 'Z') &&
+ ('a' > char_right || char_right > 'z'))) {
+ return FALSE;
+ }
+ if (char_count > 0) {
+ if (csPageText.GetAt(startPos) >= L'0' &&
+ csPageText.GetAt(startPos) <= L'9' && char_left >= L'0' &&
+ char_left <= L'9') {
+ return FALSE;
+ }
+ if (csPageText.GetAt(endPos) >= L'0' && csPageText.GetAt(endPos) <= L'9' &&
+ char_right >= L'0' && char_right <= L'9') {
+ return FALSE;
+ }
+ }
+ return TRUE;
+}
+
+FX_BOOL CPDF_TextPageFind::ExtractSubString(CFX_WideString& rString,
+ const FX_WCHAR* lpszFullString,
+ int iSubString,
+ FX_WCHAR chSep) {
+ if (!lpszFullString) {
+ return FALSE;
+ }
+ while (iSubString--) {
+ lpszFullString = FXSYS_wcschr(lpszFullString, chSep);
+ if (!lpszFullString) {
+ rString.Empty();
+ return FALSE;
+ }
+ lpszFullString++;
+ while (*lpszFullString == chSep) {
+ lpszFullString++;
+ }
+ }
+ const FX_WCHAR* lpchEnd = FXSYS_wcschr(lpszFullString, chSep);
+ int nLen = lpchEnd ? (int)(lpchEnd - lpszFullString)
+ : (int)FXSYS_wcslen(lpszFullString);
+ ASSERT(nLen >= 0);
+ FXSYS_memcpy(rString.GetBuffer(nLen), lpszFullString,
+ nLen * sizeof(FX_WCHAR));
+ rString.ReleaseBuffer();
+ return TRUE;
+}
+
+CFX_WideString CPDF_TextPageFind::MakeReverse(const CFX_WideString& str) {
+ CFX_WideString str2;
+ str2.Empty();
+ int nlen = str.GetLength();
+ for (int i = nlen - 1; i >= 0; i--) {
+ str2 += str.GetAt(i);
+ }
+ return str2;
+}
+
+void CPDF_TextPageFind::GetRectArray(CFX_RectArray& rects) const {
+ rects.Copy(m_resArray);
+}
+
+int CPDF_TextPageFind::GetCurOrder() const {
+ return GetCharIndex(m_resStart);
+}
+
+int CPDF_TextPageFind::GetMatchedCount() const {
+ int resStart = GetCharIndex(m_resStart);
+ int resEnd = GetCharIndex(m_resEnd);
+ return resEnd - resStart + 1;
+}
+
+CPDF_LinkExtract::CPDF_LinkExtract()
+ : m_pTextPage(nullptr), m_bIsParsed(false) {}
+
+CPDF_LinkExtract::~CPDF_LinkExtract() {
+ DeleteLinkList();
+}
+
+FX_BOOL CPDF_LinkExtract::ExtractLinks(const IPDF_TextPage* pTextPage) {
+ if (!pTextPage || !pTextPage->IsParsed())
+ return FALSE;
+
+ m_pTextPage = (const CPDF_TextPage*)pTextPage;
+ m_strPageText = m_pTextPage->GetPageText(0, -1);
+ DeleteLinkList();
+ if (m_strPageText.IsEmpty()) {
+ return FALSE;
+ }
+ ParseLink();
+ m_bIsParsed = true;
+ return TRUE;
+}
+
+void CPDF_LinkExtract::DeleteLinkList() {
+ while (m_LinkList.GetSize()) {
+ CPDF_LinkExt* linkinfo = NULL;
+ linkinfo = m_LinkList.GetAt(0);
+ m_LinkList.RemoveAt(0);
+ delete linkinfo;
+ }
+ m_LinkList.RemoveAll();
+}
+
+int CPDF_LinkExtract::CountLinks() const {
+ if (!m_bIsParsed) {
+ return -1;
+ }
+ return m_LinkList.GetSize();
+}
+
+void CPDF_LinkExtract::ParseLink() {
+ int start = 0, pos = 0;
+ int TotalChar = m_pTextPage->CountChars();
+ while (pos < TotalChar) {
+ FPDF_CHAR_INFO pageChar;
+ m_pTextPage->GetCharInfo(pos, &pageChar);
+ if (pageChar.m_Flag == CHAR_GENERATED || pageChar.m_Unicode == 0x20 ||
+ pos == TotalChar - 1) {
+ int nCount = pos - start;
+ if (pos == TotalChar - 1) {
+ nCount++;
+ }
+ CFX_WideString strBeCheck;
+ strBeCheck = m_pTextPage->GetPageText(start, nCount);
+ if (strBeCheck.GetLength() > 5) {
+ while (strBeCheck.GetLength() > 0) {
+ FX_WCHAR ch = strBeCheck.GetAt(strBeCheck.GetLength() - 1);
+ if (ch == L')' || ch == L',' || ch == L'>' || ch == L'.') {
+ strBeCheck = strBeCheck.Mid(0, strBeCheck.GetLength() - 1);
+ nCount--;
+ } else {
+ break;
+ }
+ }
+ if (nCount > 5 &&
+ (CheckWebLink(strBeCheck) || CheckMailLink(strBeCheck))) {
+ AppendToLinkList(start, nCount, strBeCheck);
+ }
+ }
+ start = ++pos;
+ } else {
+ pos++;
+ }
+ }
+}
+
+FX_BOOL CPDF_LinkExtract::CheckWebLink(CFX_WideString& strBeCheck) {
+ CFX_WideString str = strBeCheck;
+ str.MakeLower();
+ if (str.Find(L"http://www.") != -1) {
+ strBeCheck = strBeCheck.Right(str.GetLength() - str.Find(L"http://www."));
+ return TRUE;
+ }
+ if (str.Find(L"http://") != -1) {
+ strBeCheck = strBeCheck.Right(str.GetLength() - str.Find(L"http://"));
+ return TRUE;
+ }
+ if (str.Find(L"https://www.") != -1) {
+ strBeCheck = strBeCheck.Right(str.GetLength() - str.Find(L"https://www."));
+ return TRUE;
+ }
+ if (str.Find(L"https://") != -1) {
+ strBeCheck = strBeCheck.Right(str.GetLength() - str.Find(L"https://"));
+ return TRUE;
+ }
+ if (str.Find(L"www.") != -1) {
+ strBeCheck = strBeCheck.Right(str.GetLength() - str.Find(L"www."));
+ strBeCheck = L"http://" + strBeCheck;
+ return TRUE;
+ }
+ return FALSE;
+}
+
+bool CPDF_LinkExtract::CheckMailLink(CFX_WideString& str) {
+ int aPos = str.Find(L'@');
+ // Invalid when no '@'.
+ if (aPos < 1) {
+ return FALSE;
+ }
+
+ // Check the local part.
+ int pPos = aPos; // Used to track the position of '@' or '.'.
+ for (int i = aPos - 1; i >= 0; i--) {
+ FX_WCHAR ch = str.GetAt(i);
+ if (ch == L'_' || ch == L'-' || FXSYS_iswalnum(ch)) {
+ continue;
+ }
+ if (ch != L'.' || i == pPos - 1 || i == 0) {
+ if (i == aPos - 1) {
+ // There is '.' or invalid char before '@'.
+ return FALSE;
+ }
+ // End extracting for other invalid chars, '.' at the beginning, or
+ // consecutive '.'.
+ int removed_len = i == pPos - 1 ? i + 2 : i + 1;
+ str = str.Right(str.GetLength() - removed_len);
+ break;
+ }
+ // Found a valid '.'.
+ pPos = i;
+ }
+
+ // Check the domain name part.
+ aPos = str.Find(L'@');
+ if (aPos < 1) {
+ return FALSE;
+ }
+ str.TrimRight(L'.');
+ // At least one '.' in domain name, but not at the beginning.
+ // TODO(weili): RFC5322 allows domain names to be a local name without '.'.
+ // Check whether we should remove this check.
+ int ePos = str.Find(L'.', aPos + 1);
+ if (ePos == -1 || ePos == aPos + 1) {
+ return FALSE;
+ }
+ // Validate all other chars in domain name.
+ int nLen = str.GetLength();
+ pPos = 0; // Used to track the position of '.'.
+ for (int i = aPos + 1; i < nLen; i++) {
+ FX_WCHAR wch = str.GetAt(i);
+ if (wch == L'-' || FXSYS_iswalnum(wch)) {
+ continue;
+ }
+ if (wch != L'.' || i == pPos + 1) {
+ // Domain name should end before invalid char.
+ int host_end = i == pPos + 1 ? i - 2 : i - 1;
+ if (pPos > 0 && host_end - aPos >= 3) {
+ // Trim the ending invalid chars if there is at least one '.' and name.
+ str = str.Left(host_end + 1);
+ break;
+ }
+ return FALSE;
+ }
+ pPos = i;
+ }
+
+ if (str.Find(L"mailto:") == -1) {
+ str = L"mailto:" + str;
+ }
+ return TRUE;
+}
+
+void CPDF_LinkExtract::AppendToLinkList(int start,
+ int count,
+ const CFX_WideString& strUrl) {
+ CPDF_LinkExt* linkInfo = new CPDF_LinkExt;
+ linkInfo->m_strUrl = strUrl;
+ linkInfo->m_Start = start;
+ linkInfo->m_Count = count;
+ m_LinkList.Add(linkInfo);
+}
+
+CFX_WideString CPDF_LinkExtract::GetURL(int index) const {
+ if (!m_bIsParsed || index < 0 || index >= m_LinkList.GetSize()) {
+ return L"";
+ }
+ CPDF_LinkExt* link = NULL;
+ link = m_LinkList.GetAt(index);
+ if (!link) {
+ return L"";
+ }
+ return link->m_strUrl;
+}
+void CPDF_LinkExtract::GetBoundedSegment(int index,
+ int& start,
+ int& count) const {
+ if (!m_bIsParsed || index < 0 || index >= m_LinkList.GetSize()) {
+ return;
+ }
+ CPDF_LinkExt* link = NULL;
+ link = m_LinkList.GetAt(index);
+ if (!link) {
+ return;
+ }
+ start = link->m_Start;
+ count = link->m_Count;
+}
+
+void CPDF_LinkExtract::GetRects(int index, CFX_RectArray& rects) const {
+ if (!m_bIsParsed || index < 0 || index >= m_LinkList.GetSize()) {
+ return;
+ }
+ CPDF_LinkExt* link = NULL;
+ link = m_LinkList.GetAt(index);
+ if (!link) {
+ return;
+ }
+ m_pTextPage->GetRectArray(link->m_Start, link->m_Count, rects);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 02:09:10 +0000