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pdfium / pdfium / refs/heads/chromium/2262 / . / core / src / fpdftext / fpdf_text_int.cpp
blob: 958b213d3d21b5ea318cbda2c4332daf2ae1a2a7 [file] [log] [blame]
// 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 "../../include/fpdfapi/fpdf_resource.h"
#include "../../include/fpdfapi/fpdf_pageobj.h"
#include "../../include/fpdftext/fpdf_text.h"
#include "../../include/fpdfapi/fpdf_page.h"
#include "../../include/fpdfapi/fpdf_module.h"
#include <ctype.h>
#include <algorithm>
#include "text_int.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 / 2.0;
} else if (threshold < 500) {
return threshold / 4.0;
} else if (threshold < 700) {
return threshold / 5.0;
}
return threshold / 6.0;
}
FX_FLOAT _CalculateBaseSpace(const CPDF_TextObject* pTextObj,
const CFX_AffineMatrix& 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;
}
} // namespace
CPDFText_ParseOptions::CPDFText_ParseOptions()
: m_bGetCharCodeOnly(FALSE), m_bNormalizeObjs(TRUE), m_bOutputHyphen(FALSE)
{
}
IPDF_TextPage* IPDF_TextPage::CreateTextPage(const CPDF_Page* pPage, CPDFText_ParseOptions ParserOptions)
{
CPDF_TextPage* pTextPageEx = FX_NEW CPDF_TextPage(pPage, ParserOptions);
return pTextPageEx;
}
IPDF_TextPage* IPDF_TextPage::CreateTextPage(const CPDF_Page* pPage, int flags)
{
CPDF_TextPage* pTextPage = FX_NEW CPDF_TextPage(pPage, flags);
return pTextPage;
}
IPDF_TextPage* IPDF_TextPage::CreateTextPage(const CPDF_PageObjects* pObjs, int flags)
{
CPDF_TextPage* pTextPage = FX_NEW CPDF_TextPage(pObjs, flags);
return pTextPage;
}
IPDF_TextPageFind* IPDF_TextPageFind::CreatePageFind(const IPDF_TextPage* pTextPage)
{
if (!pTextPage) {
return NULL;
}
return FX_NEW CPDF_TextPageFind(pTextPage);
}
IPDF_LinkExtract* IPDF_LinkExtract::CreateLinkExtract()
{
return FX_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_charList(512),
m_TempCharList(50),
m_pPreTextObj(NULL),
m_IsParsered(FALSE),
m_TextlineDir(-1),
m_CurlineRect(0, 0, 0, 0)
{
m_pPage = pPage;
m_parserflag = flags;
m_TextBuf.EstimateSize(0, 10240);
pPage->GetDisplayMatrix(m_DisplayMatrix, 0, 0, (int) pPage->GetPageWidth(), (int)pPage->GetPageHeight(), 0);
}
CPDF_TextPage::CPDF_TextPage(const CPDF_Page* pPage, CPDFText_ParseOptions ParserOptions)
: m_ParseOptions(ParserOptions)
, m_charList(512)
, m_TempCharList(50)
, m_pPreTextObj(NULL)
, m_IsParsered(FALSE)
, m_TextlineDir(-1)
, m_CurlineRect(0, 0, 0, 0)
{
m_pPage = pPage;
m_parserflag = 0;
m_TextBuf.EstimateSize(0, 10240);
pPage->GetDisplayMatrix(m_DisplayMatrix, 0, 0, (int) pPage->GetPageWidth(), (int)pPage->GetPageHeight(), 0);
}
CPDF_TextPage::CPDF_TextPage(const CPDF_PageObjects* pPage, int flags)
: m_charList(512),
m_TempCharList(50),
m_pPreTextObj(NULL),
m_IsParsered(FALSE),
m_TextlineDir(-1),
m_CurlineRect(0, 0, 0, 0)
{
m_pPage = pPage;
m_parserflag = flags;
m_TextBuf.EstimateSize(0, 10240);
CFX_FloatRect pageRect = pPage->CalcBoundingBox();
m_DisplayMatrix = CFX_AffineMatrix(1, 0, 0, -1, pageRect.right, pageRect.top);
}
void CPDF_TextPage::NormalizeObjects(FX_BOOL bNormalize)
{
m_ParseOptions.m_bNormalizeObjs = bNormalize;
}
FX_BOOL CPDF_TextPage::IsControlChar(PAGECHAR_INFO* pCharInfo)
{
if(!pCharInfo) {
return FALSE;
}
switch(pCharInfo->m_Unicode) {
case 0x2:
case 0x3:
case 0x93:
case 0x94:
case 0x96:
case 0x97:
case 0x98:
case 0xfffe:
if(pCharInfo->m_Flag == FPDFTEXT_CHAR_HYPHEN) {
return FALSE;
} else {
return TRUE;
}
default:
return FALSE;
}
}
FX_BOOL CPDF_TextPage::ParseTextPage()
{
if (!m_pPage) {
m_IsParsered = FALSE;
return FALSE;
}
m_IsParsered = FALSE;
m_TextBuf.Clear();
m_charList.RemoveAll();
m_pPreTextObj = NULL;
ProcessObject();
m_IsParsered = TRUE;
if(!m_ParseOptions.m_bGetCharCodeOnly) {
m_CharIndex.RemoveAll();
int nCount = m_charList.GetSize();
if(nCount) {
m_CharIndex.Add(0);
}
for(int i = 0; i < nCount; i++) {
int indexSize = m_CharIndex.GetSize();
FX_BOOL bNormal = FALSE;
PAGECHAR_INFO charinfo = *(PAGECHAR_INFO*)m_charList.GetAt(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.Add(1);
} else {
if(indexSize <= 0) {
continue;
}
m_CharIndex.SetAt(indexSize - 1, m_CharIndex.GetAt(indexSize - 1) + 1);
}
} else {
if(indexSize % 2) {
if(indexSize <= 0) {
continue;
}
m_CharIndex.SetAt(indexSize - 1, i + 1);
} else {
m_CharIndex.Add(i + 1);
}
}
}
int indexSize = m_CharIndex.GetSize();
if(indexSize % 2) {
m_CharIndex.RemoveAt(indexSize - 1);
}
}
return TRUE;
}
int CPDF_TextPage::CountChars() const
{
if(m_ParseOptions.m_bGetCharCodeOnly) {
return m_TextBuf.GetSize();
}
return m_charList.GetSize();
}
int CPDF_TextPage::CharIndexFromTextIndex(int TextIndex) const
{
int indexSize = m_CharIndex.GetSize();
int count = 0;
for(int i = 0; i < indexSize; i += 2) {
count += m_CharIndex.GetAt(i + 1);
if(count > TextIndex) {
return TextIndex - count + m_CharIndex.GetAt(i + 1) + m_CharIndex.GetAt(i);
}
}
return -1;
}
int CPDF_TextPage::TextIndexFromCharIndex(int CharIndex) const
{
int indexSize = m_CharIndex.GetSize();
int count = 0;
for(int i = 0; i < indexSize; i += 2) {
count += m_CharIndex.GetAt(i + 1);
if(m_CharIndex.GetAt(i + 1) + m_CharIndex.GetAt(i) > CharIndex) {
if(CharIndex - m_CharIndex.GetAt(i) < 0) {
return -1;
}
return CharIndex - m_CharIndex.GetAt(i) + count - m_CharIndex.GetAt(i + 1);
}
}
return -1;
}
void CPDF_TextPage::GetRectArray(int start, int nCount, CFX_RectArray& rectArray) const
{
if(m_ParseOptions.m_bGetCharCodeOnly) {
return;
}
if(start < 0 || nCount == 0) {
return;
}
if (!m_IsParsered) {
return;
}
PAGECHAR_INFO info_curchar;
CPDF_TextObject* pCurObj = NULL;
CFX_FloatRect rect;
int curPos = start;
FX_BOOL flagNewRect = TRUE;
if (nCount + start > m_charList.GetSize() || nCount == -1) {
nCount = m_charList.GetSize() - start;
}
while (nCount--) {
info_curchar = *(PAGECHAR_INFO*)m_charList.GetAt(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_AffineMatrix 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);
return;
}
int CPDF_TextPage::GetIndexAtPos(CPDF_Point point , FX_FLOAT xTorelance, FX_FLOAT yTorelance) const
{
if(m_ParseOptions.m_bGetCharCodeOnly) {
return -3;
}
if (!m_IsParsered) {
return -3;
}
int pos = 0;
int NearPos = -1;
double xdif = 5000, ydif = 5000;
while(pos < m_charList.GetSize()) {
PAGECHAR_INFO charinfo = *(PAGECHAR_INFO*)(m_charList.GetAt(pos));
CFX_FloatRect charrect = charinfo.m_CharBox;
if (charrect.Contains(point.x, point.y)) {
break;
}
if (xTorelance > 0 || yTorelance > 0) {
CFX_FloatRect charRectExt;
charrect.Normalize();
charRectExt.left = charrect.left - xTorelance / 2;
charRectExt.right = charrect.right + xTorelance / 2;
charRectExt.top = charrect.top + yTorelance / 2;
charRectExt.bottom = charrect.bottom - yTorelance / 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;
}
if (pos >= m_charList.GetSize()) {
pos = NearPos;
}
return pos;
}
CFX_WideString CPDF_TextPage::GetTextByRect(const CFX_FloatRect& rect) const
{
CFX_WideString strText;
if(m_ParseOptions.m_bGetCharCodeOnly || !m_IsParsered) {
return strText;
}
int nCount = m_charList.GetSize();
int pos = 0;
FX_FLOAT posy = 0;
FX_BOOL IsContainPreChar = FALSE;
FX_BOOL ISAddLineFeed = FALSE;
while (pos < nCount) {
PAGECHAR_INFO charinfo = *(PAGECHAR_INFO*)m_charList.GetAt(pos++);
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_ParseOptions.m_bGetCharCodeOnly) {
return;
}
if (!m_IsParsered) {
return;
}
CFX_FloatRect curRect;
FX_BOOL flagNewRect = TRUE;
CPDF_TextObject* pCurObj = NULL;
int nCount = m_charList.GetSize();
int pos = 0;
while (pos < nCount) {
PAGECHAR_INFO info_curchar = *(PAGECHAR_INFO*)m_charList.GetAt(pos++);
if (info_curchar.m_Flag == FPDFTEXT_CHAR_GENERATED) {
continue;
}
if (IsRectIntersect(rect, info_curchar.m_CharBox)) {
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;
flagNewRect = FALSE;
curRect.Normalize();
} else {
info_curchar.m_CharBox.Normalize();
if (curRect.left > info_curchar.m_CharBox.left) {
curRect.left = info_curchar.m_CharBox.left;
}
if (curRect.right < info_curchar.m_CharBox.right) {
curRect.right = info_curchar.m_CharBox.right;
}
if ( curRect.top < info_curchar.m_CharBox.top) {
curRect.top = info_curchar.m_CharBox.top;
}
if (curRect.bottom > info_curchar.m_CharBox.bottom) {
curRect.bottom = info_curchar.m_CharBox.bottom;
}
}
}
}
resRectArray.Add(curRect);
return;
}
int CPDF_TextPage::GetIndexAtPos(FX_FLOAT x, FX_FLOAT y, FX_FLOAT xTorelance, FX_FLOAT yTorelance) const
{
if(m_ParseOptions.m_bGetCharCodeOnly) {
return -3;
}
CPDF_Point point(x, y);
return GetIndexAtPos(point, xTorelance, yTorelance);
}
int CPDF_TextPage::GetOrderByDirection(int order, int direction) const
{
if(m_ParseOptions.m_bGetCharCodeOnly) {
return -3;
}
if (!m_IsParsered) {
return -3;
}
if (direction == FPDFTEXT_RIGHT || direction == FPDFTEXT_LEFT) {
order += direction;
while(order >= 0 && order < m_charList.GetSize()) {
PAGECHAR_INFO cinfo = *(PAGECHAR_INFO*)m_charList.GetAt(order);
if (cinfo.m_Flag != FPDFTEXT_CHAR_GENERATED) {
break;
} else {
if (cinfo.m_Unicode == TEXT_LINEFEED_CHAR || cinfo.m_Unicode == TEXT_RETURN_CHAR) {
order += direction;
} else {
break;
}
}
}
if (order >= m_charList.GetSize()) {
order = -2;
}
return order;
}
PAGECHAR_INFO charinfo;
charinfo = *(PAGECHAR_INFO*)m_charList.GetAt(order);
CPDF_Point curPos(charinfo.m_OriginX, charinfo.m_OriginY);
FX_FLOAT difPosY = 0.0, minXdif = 1000;
int minIndex = -2;
int index = order;
FX_FLOAT height = charinfo.m_CharBox.Height();
if (direction == FPDFTEXT_UP) {
minIndex = -1;
while (1) {
if (--index < 0) {
return -1;
}
charinfo = *(PAGECHAR_INFO*)m_charList.GetAt(index);
if (FXSYS_fabs(charinfo.m_OriginY - curPos.y) > FX_MAX(height, charinfo.m_CharBox.Height()) / 2) {
difPosY = charinfo.m_OriginY;
minIndex = index;
break;
}
}
FX_FLOAT PreXdif = charinfo.m_OriginX - curPos.x;
minXdif = PreXdif;
if (PreXdif == 0) {
return index;
}
FX_FLOAT curXdif = 0;
while (--index >= 0) {
charinfo = *(PAGECHAR_INFO*)m_charList.GetAt(index);
if (difPosY != charinfo.m_OriginY) {
break;
}
curXdif = charinfo.m_OriginX - curPos.x;
if (curXdif == 0) {
return index;
}
int signflag = 0;
if (curXdif > 0) {
signflag = 1;
} else {
signflag = -1;
}
if (signflag * PreXdif < 0) {
if (FXSYS_fabs(PreXdif) < FXSYS_fabs(curXdif)) {
return index + 1;
} else {
return index;
}
}
if (FXSYS_fabs(curXdif) < FXSYS_fabs(minXdif)) {
minIndex = index;
minXdif = curXdif;
}
PreXdif = curXdif;
if (difPosY != charinfo.m_OriginY) {
break;
}
}
return minIndex;
} else if(FPDFTEXT_DOWN) {
minIndex = -2;
while (1) {
if (++index > m_charList.GetSize() - 1) {
return minIndex;
}
charinfo = *(PAGECHAR_INFO*)m_charList.GetAt(index);
if (FXSYS_fabs(charinfo.m_OriginY - curPos.y) > FX_MAX(height, charinfo.m_CharBox.Height()) / 2) {
difPosY = charinfo.m_OriginY;
minIndex = index;
break;
}
}
FX_FLOAT PreXdif = charinfo.m_OriginX - curPos.x;
minXdif = PreXdif;
if (PreXdif == 0) {
return index;
}
FX_FLOAT curXdif = 0;
while (++index < m_charList.GetSize()) {
charinfo = *(PAGECHAR_INFO*)m_charList.GetAt(index);
if (difPosY != charinfo.m_OriginY) {
break;
}
curXdif = charinfo.m_OriginX - curPos.x;
if (curXdif == 0) {
return index;
}
int signflag = 0;
if (curXdif > 0) {
signflag = 1;
} else {
signflag = -1;
}
if (signflag * PreXdif < 0) {
if (FXSYS_fabs(PreXdif) < FXSYS_fabs(curXdif)) {
return index - 1;
} else {
return index;
}
}
if (FXSYS_fabs(curXdif) < FXSYS_fabs(minXdif)) {
minXdif = curXdif;
minIndex = index;
}
PreXdif = curXdif;
}
return minIndex;
}
}
void CPDF_TextPage::GetCharInfo(int index, FPDF_CHAR_INFO & info) const
{
if(m_ParseOptions.m_bGetCharCodeOnly) {
return;
}
if (!m_IsParsered) {
return;
}
if (index < 0 || index >= m_charList.GetSize()) {
return;
}
PAGECHAR_INFO charinfo;
charinfo = *(PAGECHAR_INFO*)m_charList.GetAt(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();
}
info.m_Matrix.Copy(charinfo.m_Matrix);
return;
}
void CPDF_TextPage::CheckMarkedContentObject(FX_INT32& start, FX_INT32& nCount) const
{
PAGECHAR_INFO charinfo = *(PAGECHAR_INFO*)m_charList.GetAt(start);
PAGECHAR_INFO charinfo2 = *(PAGECHAR_INFO*)m_charList.GetAt(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 = *(PAGECHAR_INFO*)m_charList.GetAt(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 >= m_charList.GetSize()) {
break;
}
charinfo3 = *(PAGECHAR_INFO*)m_charList.GetAt(endIndex);
}
endIndex--;
nCount = endIndex - start + 1;
}
}
CFX_WideString CPDF_TextPage::GetPageText(int start , int nCount) const
{
if (!m_IsParsered || nCount == 0) {
return L"";
}
if (start < 0) {
start = 0;
}
if (nCount == -1) {
nCount = m_charList.GetSize() - start;
return m_TextBuf.GetWideString().Mid(start, m_TextBuf.GetWideString().GetLength());
}
if(nCount <= 0 || m_charList.GetSize() <= 0) {
return L"";
}
if(nCount + start > m_charList.GetSize() - 1) {
nCount = m_charList.GetSize() - start;
}
if (nCount <= 0) {
return L"";
}
CheckMarkedContentObject(start, nCount);
int startindex = 0;
PAGECHAR_INFO charinfo = *(PAGECHAR_INFO*)m_charList.GetAt(start);
int startOffset = 0;
while(charinfo.m_Index == -1) {
startOffset++;
if (startOffset > nCount || start + startOffset >= m_charList.GetSize()) {
return L"";
}
charinfo = *(PAGECHAR_INFO*)m_charList.GetAt(start + startOffset);
}
startindex = charinfo.m_Index;
charinfo = *(PAGECHAR_INFO*)m_charList.GetAt(start + nCount - 1);
int nCountOffset = 0;
while (charinfo.m_Index == -1) {
nCountOffset++;
if (nCountOffset >= nCount) {
return L"";
}
charinfo = *(PAGECHAR_INFO*)m_charList.GetAt(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_ParseOptions.m_bGetCharCodeOnly) {
return -1;
}
if (!m_IsParsered) {
return -1;
}
if (start < 0) {
return -1;
}
if (nCount == -1 || nCount + start > m_charList.GetSize() ) {
nCount = m_charList.GetSize() - 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_ParseOptions.m_bGetCharCodeOnly) {
return ;
}
if (!m_IsParsered || 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(m_ParseOptions.m_bGetCharCodeOnly) {
return FALSE;
}
if(end == start) {
return FALSE;
}
FX_FLOAT dx, dy;
FPDF_CHAR_INFO info1, info2;
GetCharInfo(start, info1);
GetCharInfo(end, info2);
while(info2.m_CharBox.Width() == 0 || info2.m_CharBox.Height() == 0) {
end--;
if(end <= start) {
return FALSE;
}
GetCharInfo(end, info2);
}
dx = (info2.m_OriginX - info1.m_OriginX);
dy = (info2.m_OriginY - info1.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)
{
if(m_ParseOptions.m_bGetCharCodeOnly) {
return FALSE;
}
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_ParseOptions.m_bGetCharCodeOnly) {
return FALSE;
}
if (!m_IsParsered || 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 )
{
if(m_ParseOptions.m_bGetCharCodeOnly) {
return -1;
}
m_Segment.RemoveAll();
if (!m_IsParsered) {
return -1;
}
CFX_FloatRect rect(left, bottom, right, top);
rect.Normalize();
int nCount = m_charList.GetSize();
int pos = 0;
FPDF_SEGMENT segment;
segment.m_Start = 0;
segment.m_nCount = 0;
FX_BOOL segmentStatus = 0;
FX_BOOL IsContainPreChar = FALSE;
while (pos < nCount) {
PAGECHAR_INFO charinfo = *(PAGECHAR_INFO*)m_charList.GetAt(pos);
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_Segment.Add(segment);
segment.m_Start = 0;
segment.m_nCount = 0;
}
}
} else {
if (segmentStatus == 1) {
segmentStatus = 2;
m_Segment.Add(segment);
segment.m_Start = 0;
segment.m_nCount = 0;
}
IsContainPreChar = FALSE;
}
pos++;
}
if (segmentStatus == 1) {
segmentStatus = 2;
m_Segment.Add(segment);
segment.m_Start = 0;
segment.m_nCount = 0;
}
return m_Segment.GetSize();
}
void CPDF_TextPage::GetBoundedSegment(int index, int& start, int& count) const
{
if(m_ParseOptions.m_bGetCharCodeOnly) {
return ;
}
if (index < 0 || index >= m_Segment.GetSize()) {
return;
}
start = m_Segment.GetAt(index).m_Start;
count = m_Segment.GetAt(index).m_nCount;
}
int CPDF_TextPage::GetWordBreak(int index, int direction) const
{
if(m_ParseOptions.m_bGetCharCodeOnly) {
return -1;
}
if (!m_IsParsered) {
return -1;
}
if (direction != FPDFTEXT_LEFT && direction != FPDFTEXT_RIGHT) {
return -1;
}
if (index < 0 || index >= m_charList.GetSize()) {
return -1;
}
PAGECHAR_INFO charinfo;
charinfo = *(PAGECHAR_INFO*)m_charList.GetAt(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) {
charinfo = *(PAGECHAR_INFO*)m_charList.GetAt(breakPos);
if (!IsLetter(charinfo.m_Unicode)) {
return breakPos;
}
}
return breakPos;
} else if (direction == FPDFTEXT_RIGHT) {
while (++breakPos < m_charList.GetSize()) {
charinfo = *(PAGECHAR_INFO*)m_charList.GetAt(breakPos);
if (!IsLetter(charinfo.m_Unicode)) {
return breakPos;
}
}
return breakPos;
}
return breakPos;
}
FX_INT32 CPDF_TextPage::FindTextlineFlowDirection()
{
if (!m_pPage) {
return -1;
}
const FX_INT32 nPageWidth = (FX_INT32)((CPDF_Page*)m_pPage)->GetPageWidth();
const FX_INT32 nPageHeight = (FX_INT32)((CPDF_Page*)m_pPage)->GetPageHeight();
CFX_ByteArray nHorizontalMask;
if (!nHorizontalMask.SetSize(nPageWidth)) {
return -1;
}
FX_BYTE* pDataH = nHorizontalMask.GetData();
CFX_ByteArray nVerticalMask;
if (!nVerticalMask.SetSize(nPageHeight)) {
return -1;
}
FX_BYTE* pDataV = nVerticalMask.GetData();
FX_INT32 index = 0;
FX_FLOAT fLineHeight = 0.0f;
CPDF_PageObject* pPageObj = NULL;
FX_POSITION pos = NULL;
pos = m_pPage->GetFirstObjectPosition();
if(!pos) {
return -1;
}
while(pos) {
pPageObj = m_pPage->GetNextObject(pos);
if(NULL == pPageObj) {
continue;
}
if(PDFPAGE_TEXT != pPageObj->m_Type) {
continue;
}
FX_INT32 minH = (FX_INT32)pPageObj->m_Left < 0 ? 0 : (FX_INT32)pPageObj->m_Left;
FX_INT32 maxH = (FX_INT32)pPageObj->m_Right > nPageWidth ? nPageWidth : (FX_INT32)pPageObj->m_Right;
FX_INT32 minV = (FX_INT32)pPageObj->m_Bottom < 0 ? 0 : (FX_INT32)pPageObj->m_Bottom;
FX_INT32 maxV = (FX_INT32)pPageObj->m_Top > nPageHeight ? nPageHeight : (FX_INT32)pPageObj->m_Top;
if (minH >= maxH || minV >= maxV) {
continue;
}
FXSYS_memset8(pDataH + minH, 1, maxH - minH);
FXSYS_memset8(pDataV + minV, 1, maxV - minV);
if (fLineHeight <= 0.0f) {
fLineHeight = pPageObj->m_Top - pPageObj->m_Bottom;
}
pPageObj = NULL;
}
FX_INT32 nStartH = 0;
FX_INT32 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;
FX_INT32 nStartV = 0;
FX_INT32 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) < (FX_INT32)(2 * fLineHeight)) {
return 0;
}
if ((nEndH - nStartH) < (FX_INT32)(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()
{
CPDF_PageObject* pPageObj = NULL;
if (!m_pPage) {
return;
}
FX_POSITION pos;
pos = m_pPage->GetFirstObjectPosition();
if (!pos) {
return;
}
m_TextlineDir = FindTextlineFlowDirection();
int nCount = 0;
while (pos) {
pPageObj = m_pPage->GetNextObject(pos);
if(pPageObj) {
if(pPageObj->m_Type == PDFPAGE_TEXT) {
CFX_AffineMatrix matrix;
ProcessTextObject((CPDF_TextObject*)pPageObj, matrix, pos);
nCount++;
} else if (pPageObj->m_Type == PDFPAGE_FORM) {
CFX_AffineMatrix formMatrix(1, 0, 0, 1, 0, 0);
ProcessFormObject((CPDF_FormObject*)pPageObj, formMatrix);
}
}
pPageObj = NULL;
}
int count = m_LineObj.GetSize();
for(int i = 0; i < count; i++) {
ProcessTextObject(m_LineObj.GetAt(i));
}
m_LineObj.RemoveAll();
CloseTempLine();
}
void CPDF_TextPage::ProcessFormObject(CPDF_FormObject* pFormObj, const CFX_AffineMatrix& formMatrix)
{
CPDF_PageObject* pPageObj = NULL;
FX_POSITION pos;
if (!pFormObj) {
return;
}
pos = pFormObj->m_pForm->GetFirstObjectPosition();
if (!pos) {
return;
}
CFX_AffineMatrix curFormMatrix;
curFormMatrix.Copy(pFormObj->m_FormMatrix);
curFormMatrix.Concat(formMatrix);
while (pos) {
pPageObj = pFormObj->m_pForm->GetNextObject(pos);
if(pPageObj) {
if(pPageObj->m_Type == PDFPAGE_TEXT) {
ProcessTextObject((CPDF_TextObject*)pPageObj, curFormMatrix, pos);
} else if (pPageObj->m_Type == PDFPAGE_FORM) {
ProcessFormObject((CPDF_FormObject*)pPageObj, curFormMatrix);
}
}
pPageObj = NULL;
}
}
int CPDF_TextPage::GetCharWidth(FX_DWORD charCode, CPDF_Font* pFont) const
{
if(charCode == -1) {
return 0;
}
int w = pFont->GetCharWidthF(charCode);
if(w == 0) {
CFX_ByteString str;
pFont->AppendChar(str, charCode);
w = pFont->GetStringWidth(str, 1);
if(w == 0) {
FX_RECT BBox;
pFont->GetCharBBox(charCode, BBox);
w = BBox.right - BBox.left;
}
}
return w;
}
void CPDF_TextPage::OnPiece(IFX_BidiChar* pBidi, CFX_WideString& str)
{
FX_INT32 start, count;
FX_INT32 ret = pBidi->GetBidiInfo(start, count);
if(ret == 2) {
for(int i = start + count - 1; i >= start; i--) {
m_TextBuf.AppendChar(str.GetAt(i));
m_charList.Add(*(PAGECHAR_INFO*)m_TempCharList.GetAt(i));
}
} else {
int end = start + count ;
for(int i = start; i < end; i++) {
m_TextBuf.AppendChar(str.GetAt(i));
m_charList.Add(*(PAGECHAR_INFO*)m_TempCharList.GetAt(i));
}
}
}
void CPDF_TextPage::AddCharInfoByLRDirection(CFX_WideString& str, int i)
{
PAGECHAR_INFO Info = *(PAGECHAR_INFO*)m_TempCharList.GetAt(i);
FX_WCHAR wChar = str.GetAt(i);
if(!IsControlChar(&Info)) {
Info.m_Index = m_TextBuf.GetLength();
if (wChar >= 0xFB00 && wChar <= 0xFB06) {
FX_LPWSTR pDst = NULL;
FX_STRSIZE nCount = FX_Unicode_GetNormalization(wChar, pDst);
if (nCount >= 1) {
pDst = FX_Alloc(FX_WCHAR, nCount);
if (!pDst) {
return;
}
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);
if( !m_ParseOptions.m_bGetCharCodeOnly) {
m_charList.Add(Info2);
}
}
FX_Free(pDst);
return;
}
}
m_TextBuf.AppendChar(wChar);
} else {
Info.m_Index = -1;
}
if( !m_ParseOptions.m_bGetCharCodeOnly) {
m_charList.Add(Info);
}
}
void CPDF_TextPage::AddCharInfoByRLDirection(CFX_WideString& str, int i)
{
PAGECHAR_INFO Info = *(PAGECHAR_INFO*)m_TempCharList.GetAt(i);
if(!IsControlChar(&Info)) {
Info.m_Index = m_TextBuf.GetLength();
FX_WCHAR wChar = FX_GetMirrorChar(str.GetAt(i), TRUE, FALSE);
FX_LPWSTR pDst = NULL;
FX_STRSIZE nCount = FX_Unicode_GetNormalization(wChar, pDst);
if (nCount >= 1) {
pDst = FX_Alloc(FX_WCHAR, nCount);
if (!pDst) {
return;
}
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);
if( !m_ParseOptions.m_bGetCharCodeOnly) {
m_charList.Add(Info2);
}
}
FX_Free(pDst);
return;
} else {
Info.m_Unicode = wChar;
}
m_TextBuf.AppendChar(Info.m_Unicode);
} else {
Info.m_Index = -1;
}
if( !m_ParseOptions.m_bGetCharCodeOnly) {
m_charList.Add(Info);
}
}
void CPDF_TextPage::CloseTempLine()
{
int count1 = m_TempCharList.GetSize();
if (count1 <= 0) {
return;
}
IFX_BidiChar* BidiChar = IFX_BidiChar::Create();
CFX_WideString str = m_TempTextBuf.GetWideString();
CFX_WordArray order;
FX_BOOL bR2L = FALSE;
FX_INT32 start = 0, count = 0;
int nR2L = 0, nL2R = 0;
FX_BOOL bPrevSpace = FALSE;
for (int i = 0; i < str.GetLength(); i++) {
if(str.GetAt(i) == 32) {
if(bPrevSpace) {
m_TempTextBuf.Delete(i, 1);
m_TempCharList.Delete(i);
str.Delete(i);
count1--;
i--;
continue;
}
bPrevSpace = TRUE;
} else {
bPrevSpace = FALSE;
}
if(BidiChar && BidiChar->AppendChar(str.GetAt(i))) {
FX_INT32 ret = BidiChar->GetBidiInfo(start, count);
order.Add(start);
order.Add(count);
order.Add(ret);
if(!bR2L) {
if(ret == 2) {
nR2L++;
} else if (ret == 1) {
nL2R++;
}
}
}
}
if(BidiChar && BidiChar->EndChar()) {
FX_INT32 ret = BidiChar->GetBidiInfo(start, count);
order.Add(start);
order.Add(count);
order.Add(ret);
if(!bR2L) {
if(ret == 2) {
nR2L++;
} else if(ret == 1) {
nL2R++;
}
}
}
if(nR2L > 0 && nR2L >= nL2R) {
bR2L = TRUE;
}
if(this->m_parserflag == FPDFTEXT_RLTB || bR2L) {
int count = order.GetSize();
for(int i = count - 1; i > 0; i -= 3) {
int ret = order.GetAt(i);
int start = order.GetAt(i - 2);
int count1 = order.GetAt(i - 1);
if(ret == 2 || ret == 0) {
for(int j = start + count1 - 1; j >= start; j--) {
AddCharInfoByRLDirection(str, j);
}
} else {
int j = i;
FX_BOOL bSymbol = FALSE;
while(j > 0 && order.GetAt(j) != 2) {
bSymbol = !order.GetAt(j);
j -= 3;
}
int end = start + count1 ;
int n = 0;
if(bSymbol) {
n = j + 6;
} else {
n = j + 3;
}
if(n >= i) {
for(int m = start; m < end; m++) {
AddCharInfoByLRDirection(str, m);
}
} else {
j = i;
i = n;
for(; n <= j; n += 3) {
int start = order.GetAt(n - 2);
int count1 = order.GetAt(n - 1);
int end = start + count1 ;
for(int m = start; m < end; m++) {
AddCharInfoByLRDirection(str, m);
}
}
}
}
}
} else {
int count = order.GetSize();
FX_BOOL bL2R = FALSE;
for(int i = 0; i < count; i += 3) {
int ret = order.GetAt(i + 2);
int start = order.GetAt(i);
int count1 = order.GetAt(i + 1);
if(ret == 2 || (i == 0 && ret == 0 && !bL2R)) {
int j = i + 3;
while(bR2L && j < count) {
if(order.GetAt(j + 2) == 1) {
break;
} else {
j += 3;
}
}
if(j == 3) {
i = -3;
bL2R = TRUE;
continue;
}
int end = m_TempCharList.GetSize() - 1;
if(j < count) {
end = order.GetAt(j) - 1;
}
i = j - 3;
for(int n = end; n >= start; n--) {
AddCharInfoByRLDirection(str, n);
}
} else {
int end = start + count1 ;
for(int n = start; n < end; n++) {
AddCharInfoByLRDirection(str, n);
}
}
}
}
int ntext = m_TextBuf.GetSize();
ntext = m_charList.GetSize();
order.RemoveAll();
m_TempCharList.RemoveAll();
m_TempTextBuf.Delete(0, m_TempTextBuf.GetLength());
BidiChar->Release();
}
void CPDF_TextPage::ProcessTextObject(CPDF_TextObject* pTextObj, const CFX_AffineMatrix& formMatrix, FX_POSITION 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, 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_AffineMatrix 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_AffineMatrix 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;
if(m_ParseOptions.m_bNormalizeObjs) {
for(i = count - 1; i >= 0; i--) {
PDFTEXT_Obj prev_Obj = m_LineObj.GetAt(i);
CFX_AffineMatrix 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);
}
} else {
m_LineObj.Add(Obj);
}
}
FX_INT32 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);
CFX_ByteString tagStr = (CFX_ByteString)item.GetName();
pDict = (CPDF_Dictionary*)item.GetParam();
CPDF_String* temp = (CPDF_String*)(pDict ? pDict->GetElement(FX_BSTRC("ActualText")) : NULL);
if (temp) {
bExist = TRUE;
actText = temp->GetUnicodeText();
}
}
if (!bExist) {
return FPDFTEXT_MC_PASS;
}
if (m_pPreTextObj) {
if (CPDF_ContentMarkData* pPreMarkData = (CPDF_ContentMarkData*)m_pPreTextObj->m_ContentMark.GetObject()) {
if (pPreMarkData->CountItems() == n) {
CPDF_ContentMarkItem& item = pPreMarkData->GetItem(n - 1);
if (pDict == item.GetParam()) {
return FPDFTEXT_MC_DONE;
}
}
}
}
CPDF_Font* pFont = pTextObj->GetFont();
FX_STRSIZE nItems = actText.GetLength();
if (nItems < 1) {
return FPDFTEXT_MC_PASS;
}
bExist = FALSE;
for (FX_STRSIZE i = 0; i < nItems; i++) {
FX_WCHAR wChar = actText.GetAt(i);
if (-1 == pFont->CharCodeFromUnicode(wChar)) {
continue;
} else {
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;
int n = 0;
for (n = 0; n < nContentMark; n++) {
CPDF_ContentMarkItem& item = pMarkData->GetItem(n);
CFX_ByteString tagStr = (CFX_ByteString)item.GetName();
pDict = (CPDF_Dictionary*)item.GetParam();
CPDF_String* temp = (CPDF_String*)(pDict ? pDict->GetElement(FX_BSTRC("ActualText")) : NULL);
if (temp) {
actText = temp->GetUnicodeText();
}
}
FX_STRSIZE nItems = actText.GetLength();
if (nItems < 1) {
return;
}
CPDF_Font* pFont = pTextObj->GetFont();
CFX_AffineMatrix formMatrix = Obj.m_formMatrix;
CFX_AffineMatrix 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.Add(charinfo);
}
}
void CPDF_TextPage::FindPreviousTextObject(void)
{
if (m_TempCharList.GetSize() < 1 && m_charList.GetSize() < 1) {
return;
}
PAGECHAR_INFO preChar;
if (m_TempCharList.GetSize() >= 1) {
preChar = *(PAGECHAR_INFO*)m_TempCharList.GetAt(m_TempCharList.GetSize() - 1);
} else {
preChar = *(PAGECHAR_INFO*)m_charList.GetAt(m_charList.GetSize() - 1);
}
if (preChar.m_pTextObj) {
m_pPreTextObj = preChar.m_pTextObj;
}
}
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_AffineMatrix formMatrix = Obj.m_formMatrix;
CPDF_Font* pFont = pTextObj->GetFont();
CFX_AffineMatrix matrix;
pTextObj->GetTextMatrix(&matrix);
matrix.Concat(formMatrix);
FX_INT32 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.Add(generateChar);
}
} else if(result == 2) {
CloseTempLine();
if(m_TextBuf.GetSize()) {
if(m_ParseOptions.m_bGetCharCodeOnly) {
m_TextBuf.AppendChar(TEXT_RETURN_CHAR);
m_TextBuf.AppendChar(TEXT_LINEFEED_CHAR);
} else {
if(GenerateCharInfo(TEXT_RETURN_CHAR, generateChar)) {
m_TextBuf.AppendChar(TEXT_RETURN_CHAR);
if (!formMatrix.IsIdentity()) {
generateChar.m_Matrix.Copy(formMatrix);
}
m_charList.Add(generateChar);
}
if(GenerateCharInfo(TEXT_LINEFEED_CHAR, generateChar)) {
m_TextBuf.AppendChar(TEXT_LINEFEED_CHAR);
if (!formMatrix.IsIdentity()) {
generateChar.m_Matrix.Copy(formMatrix);
}
m_charList.Add(generateChar);
}
}
}
} else if (result == 3 && !m_ParseOptions.m_bOutputHyphen) {
FX_INT32 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.Delete(m_TempCharList.GetSize() - 1);
}
PAGECHAR_INFO* cha = (PAGECHAR_INFO*)m_TempCharList.GetAt(m_TempCharList.GetSize() - 1);
m_TempTextBuf.Delete(m_TempTextBuf.GetLength() - 1, 1);
cha->m_Unicode = 0x2;
cha->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);
FX_BOOL bIsBidiAndMirrosInverse = FALSE;
IFX_BidiChar* BidiChar = IFX_BidiChar::Create();
FX_INT32 nR2L = 0;
FX_INT32 nL2R = 0;
FX_INT32 start = 0, count = 0;
CPDF_TextObjectItem item;
for (FX_INT32 i = 0; i < nItems; i++) {
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) {
continue;
}
if (BidiChar && BidiChar->AppendChar(wChar)) {
FX_INT32 ret = BidiChar->GetBidiInfo(start, count);
if (ret == 2) {
nR2L++;
}
else if (ret == 1) {
nL2R++;
}
}
}
if (BidiChar && BidiChar->EndChar()) {
FX_INT32 ret = BidiChar->GetBidiInfo(start, count);
if (ret == 2) {
nR2L++;
}
else if (ret == 1) {
nL2R++;
}
}
FX_BOOL bR2L = FALSE;
if (nR2L > 0 && nR2L >= nL2R) {
bR2L = TRUE;
}
bIsBidiAndMirrosInverse = bR2L && (matrix.a * matrix.d - matrix.b * matrix.c) < 0;
FX_INT32 iBufStartAppend = m_TempTextBuf.GetLength();
FX_INT32 iCharListStartAppend = m_TempCharList.GetSize();
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.Add(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(0, 0, 0, 0);
rect.Intersect(0, 0, 0, 0);
charinfo.m_pTextObj->GetFont()->GetCharBBox(charinfo.m_CharCode, rect);
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.Add(charinfo);
m_TempTextBuf.AppendChar(0xfffe);
continue;
} else {
int nTotal = wstrItem.GetLength();
FX_BOOL bDel = FALSE;
const int count = std::min(m_TempCharList.GetSize(), 7);
for (int n = m_TempCharList.GetSize();
n > m_TempCharList.GetSize() - count;
n--) {
PAGECHAR_INFO* charinfo1 = (PAGECHAR_INFO*)m_TempCharList.GetAt(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) < TEXT_CHARRATIO_GAPDELTA * pTextObj->GetFontSize() &&
FXSYS_fabs(charinfo1->m_OriginY - charinfo.m_OriginY) < TEXT_CHARRATIO_GAPDELTA * pTextObj->GetFontSize() ) {
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.Add(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.Delete(m_TempCharList.GetSize() - 1);
}
}
}
}
if (bIsBidiAndMirrosInverse) {
FX_INT32 i, j;
i = iCharListStartAppend;
j = m_TempCharList.GetSize() - 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_INT32 CPDF_TextPage::GetTextObjectWritingMode(const CPDF_TextObject* pTextObj)
{
FX_INT32 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;
v.Set(dX, dY);
v.Normalize();
if (v.y <= 0.0872f) {
if (v.x <= 0.0872f) {
return m_TextlineDir;
}
return 0;
} else 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;
}
}
int size = m_TempCharList.GetSize();
PAGECHAR_INFO preChar;
if (size) {
preChar = (PAGECHAR_INFO)m_TempCharList[size - 1];
} else {
size = m_charList.GetSize();
if(size == 0) {
return FALSE;
}
preChar = (PAGECHAR_INFO)m_charList[size - 1];
}
if (FPDFTEXT_CHAR_PIECE == preChar.m_Flag)
if (0xAD == preChar.m_Unicode || 0x2D == preChar.m_Unicode) {
return TRUE;
}
}
return FALSE;
}
int CPDF_TextPage::ProcessInsertObject(const CPDF_TextObject* pObj, const CFX_AffineMatrix& 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_AffineMatrix 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_AffineMatrix 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) {
if(IsHyphen(curChar)) {
return 3;
}
return 2;
}
FX_INT32 nChars = pObj->CountChars();
if (nChars == 1 && ( 0x2D == curChar || 0xAD == curChar))
if (IsHyphen(curChar)) {
return 3;
}
CFX_WideString PrevStr = m_pPreTextObj->GetFont()->UnicodeFromCharCode(PrevItem.m_CharCode);
FX_WCHAR preChar = PrevStr.GetAt(PrevStr.GetLength() - 1);
CFX_AffineMatrix 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() && !m_ParseOptions.m_bGetCharCodeOnly) {
FX_FLOAT dbXdif = FXSYS_fabs(rcPreObj.left - rcCurObj.left);
int nCount = m_charList.GetSize();
if (nCount >= 2) {
PAGECHAR_INFO perCharTemp = (PAGECHAR_INFO)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()) >
FX_MAX(FX_MAX(rcPreObj.Height() , rcPreObj.Width()), pTextObj2->GetFontSize()) / 8) {
return FALSE;
}
return TRUE;
}
FX_BOOL CPDF_TextPage::IsSameAsPreTextObject(CPDF_TextObject* pTextObj, FX_POSITION ObjPos)
{
if (!pTextObj) {
return FALSE;
}
int i = 0;
if (!ObjPos) {
ObjPos = m_pPage->GetLastObjectPosition();
}
CPDF_PageObject* pObj = m_pPage->GetPrevObject(ObjPos);
while (i < 5 && ObjPos) {
pObj = m_pPage->GetPrevObject(ObjPos);
if(pObj == pTextObj) {
continue;
}
if(pObj->m_Type != PDFPAGE_TEXT) {
continue;
}
if(IsSameTextObject((CPDF_TextObject*)pObj, pTextObj)) {
return TRUE;
}
i++;
}
return FALSE;
}
FX_BOOL CPDF_TextPage::GenerateCharInfo(FX_WCHAR unicode, PAGECHAR_INFO& info)
{
int size = m_TempCharList.GetSize();
PAGECHAR_INFO preChar;
if (size) {
preChar = (PAGECHAR_INFO)m_TempCharList[size - 1];
} else {
size = m_charList.GetSize();
if(size == 0) {
return FALSE;
}
preChar = (PAGECHAR_INFO)m_charList[size - 1];
}
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 fs = 0;
if(preChar.m_pTextObj) {
fs = preChar.m_pTextObj->GetFontSize();
} else {
fs = preChar.m_CharBox.Height();
}
if(!fs) {
fs = 1;
}
info.m_OriginX = preChar.m_OriginX + preWidth * (fs) / 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(NULL),
m_IsFind(FALSE)
{
if (!pTextPage) {
return;
}
m_pTextPage = pTextPage;
m_strText = m_pTextPage->GetPageText();
int nCount = pTextPage->CountChars();
if(nCount) {
m_CharIndex.Add(0);
}
for(int i = 0; i < nCount; i++) {
FPDF_CHAR_INFO info;
pTextPage->GetCharInfo(i, info);
int indexSize = m_CharIndex.GetSize();
if(info.m_Flag == CHAR_NORMAL || info.m_Flag == CHAR_GENERATED) {
if(indexSize % 2) {
m_CharIndex.Add(1);
} else {
if(indexSize <= 0) {
continue;
}
m_CharIndex.SetAt(indexSize - 1, m_CharIndex.GetAt(indexSize - 1) + 1);
}
} else {
if(indexSize % 2) {
if(indexSize <= 0) {
continue;
}
m_CharIndex.SetAt(indexSize - 1, i + 1);
} else {
m_CharIndex.Add(i + 1);
}
}
}
int indexSize = m_CharIndex.GetSize();
if(indexSize % 2) {
m_CharIndex.RemoveAt(indexSize - 1);
}
m_resStart = 0;
m_resEnd = -1;
}
int CPDF_TextPageFind::GetCharIndex(int index) const
{
return m_pTextPage->CharIndexFromTextIndex(index);
int indexSize = m_CharIndex.GetSize();
int count = 0;
for(int i = 0; i < indexSize; i += 2) {
count += m_CharIndex.GetAt(i + 1);
if(count > index) {
return index - count + m_CharIndex.GetAt(i + 1) + m_CharIndex.GetAt(i);
}
}
return -1;
}
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.RemoveAll();
int i = 0;
while(i < len) {
if(findwhatStr.GetAt(i) != ' ') {
break;
}
i++;
}
if(i < len) {
ExtractFindWhat(findwhatStr);
} else {
m_csFindWhatArray.Add(findwhatStr);
}
if(m_csFindWhatArray.GetSize() <= 0) {
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 = m_csFindWhatArray.GetSize();
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, 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[m_csFindWhatArray.GetSize() - 1].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, index, TEXT_BLANK_CHAR);
if(csWord.IsEmpty()) {
if(ret) {
m_csFindWhatArray.Add(CFX_WideString(L""));
index++;
continue;
} else {
break;
}
}
int pos = 0;
FX_BOOL bLastIgnore = FALSE;
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 ) {
CFX_WideString preStr = csWord.Mid(0, pos);
m_csFindWhatArray.Add(preStr);
}
m_csFindWhatArray.Add(curStr);
if (pos == csWord.GetLength() - 1) {
csWord.Empty();
break;
}
csWord = csWord.Right(csWord.GetLength() - pos - 1);
pos = 0;
bLastIgnore = TRUE;
continue;
} else {
bLastIgnore = FALSE;
}
pos++;
}
if (!csWord.IsEmpty()) {
m_csFindWhatArray.Add(csWord);
}
index++;
}
return;
}
FX_BOOL CPDF_TextPageFind::IsMatchWholeWord(const CFX_WideString& csPageText, int startPos, int endPos)
{
int char_left = 0;
int 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) || (char_left >= '0' && char_left <= '9') ||
(char_right > 'A' && char_right < 'a') || (char_right > 'a' && char_right < 'z') || (char_right > 0xfb00 && char_right < 0xfb06) || (char_right >= '0' && char_right <= '9')) {
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, FX_LPCWSTR lpszFullString,
int iSubString, FX_WCHAR chSep)
{
if (lpszFullString == NULL) {
return FALSE;
}
while (iSubString--) {
lpszFullString = FXSYS_wcschr(lpszFullString, chSep);
if (lpszFullString == NULL) {
rString.Empty();
return FALSE;
}
lpszFullString++;
while(*lpszFullString == chSep) {
lpszFullString++;
}
}
FX_LPCWSTR lpchEnd = FXSYS_wcschr(lpszFullString, chSep);
int nLen = (lpchEnd == NULL) ?
(int)FXSYS_wcslen(lpszFullString) : (int)(lpchEnd - lpszFullString);
ASSERT(nLen >= 0);
FXSYS_memcpy32(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(NULL),
m_IsParserd(FALSE)
{
}
CPDF_LinkExtract::~CPDF_LinkExtract()
{
DeleteLinkList();
}
FX_BOOL CPDF_LinkExtract::ExtractLinks(const IPDF_TextPage* pTextPage)
{
if (!pTextPage || !pTextPage->IsParsered()) {
return FALSE;
}
m_pTextPage = (const CPDF_TextPage*)pTextPage;
m_strPageText = m_pTextPage->GetPageText(0, -1);
DeleteLinkList();
if (m_strPageText.IsEmpty()) {
return FALSE;
}
parserLink();
m_IsParserd = 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_IsParserd) {
return -1;
}
return m_LinkList.GetSize();
}
void CPDF_LinkExtract::parserLink()
{
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))) {
if (!AppendToLinkList(start, nCount, strBeCheck)) {
break;
}
}
}
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;
} else if (str.Find(L"http://") != -1) {
strBeCheck = strBeCheck.Right(str.GetLength() - str.Find(L"http://"));
return TRUE;
} else if (str.Find(L"https://www.") != -1) {
strBeCheck = strBeCheck.Right(str.GetLength() - str.Find(L"https://www."));
return TRUE;
} else if (str.Find(L"https://") != -1) {
strBeCheck = strBeCheck.Right(str.GetLength() - str.Find(L"https://"));
return TRUE;
} else if (str.Find(L"www.") != -1) {
strBeCheck = strBeCheck.Right(str.GetLength() - str.Find(L"www."));
strBeCheck = L"http://" + strBeCheck;
return TRUE;
} else {
return FALSE;
}
}
FX_BOOL CPDF_LinkExtract::CheckMailLink(CFX_WideString& str)
{
str.MakeLower();
int aPos = str.Find(L'@');
if (aPos < 1) {
return FALSE;
}
if (str.GetAt(aPos - 1) == L'.' || str.GetAt(aPos - 1) == L'_') {
return FALSE;
}
int i;
for (i = aPos - 1; i >= 0; i--) {
FX_WCHAR ch = str.GetAt(i);
if (ch == L'_' || ch == L'.' || (ch >= L'a' && ch <= L'z') || (ch >= L'0' && ch <= L'9')) {
continue;
} else {
if (i == aPos - 1) {
return FALSE;
}
str = str.Right(str.GetLength() - i - 1);
break;
}
}
aPos = str.Find(L'@');
if (aPos < 1) {
return FALSE;
}
CFX_WideString strtemp = L"";
for (i = 0; i < aPos; i++) {
FX_WCHAR wch = str.GetAt(i);
if (wch >= L'a' && wch <= L'z') {
break;
} else {
strtemp = str.Right(str.GetLength() - i + 1);
}
}
if (strtemp != L"") {
str = strtemp;
}
aPos = str.Find(L'@');
if (aPos < 1) {
return FALSE;
}
str.TrimRight(L'.');
strtemp = str;
int ePos = str.Find(L'.');
if (ePos == -1) {
return FALSE;
}
while (ePos != -1) {
strtemp = strtemp.Right(strtemp.GetLength() - ePos - 1);
ePos = strtemp.Find('.');
}
ePos = strtemp.GetLength();
for (i = 0; i < ePos; i++) {
FX_WCHAR wch = str.GetAt(i);
if ((wch >= L'a' && wch <= L'z') || (wch >= L'0' && wch <= L'9')) {
continue;
} else {
str = str.Left(str.GetLength() - ePos + i + 1);
ePos = ePos - i - 1;
break;
}
}
int nLen = str.GetLength();
for (i = aPos + 1; i < nLen - ePos; i++) {
FX_WCHAR wch = str.GetAt(i);
if (wch == L'-' || wch == L'.' || (wch >= L'a' && wch <= L'z') || (wch >= L'0' && wch <= L'9')) {
continue;
} else {
return FALSE;
}
}
if (str.Find(L"mailto:") == -1) {
str = L"mailto:" + str;
}
return TRUE;
}
FX_BOOL CPDF_LinkExtract::AppendToLinkList(int start, int count, const CFX_WideString& strUrl)
{
CPDF_LinkExt* linkInfo = NULL;
linkInfo = FX_NEW CPDF_LinkExt;
if (!linkInfo) {
return FALSE;
}
linkInfo->m_strUrl = strUrl;
linkInfo->m_Start = start;
linkInfo->m_Count = count;
m_LinkList.Add(linkInfo);
return TRUE;
}
CFX_WideString CPDF_LinkExtract::GetURL(int index) const
{
if (!m_IsParserd || 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_IsParserd || 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_IsParserd || 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);
}