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1  // Copyright 2014 PDFium Authors. All rights reserved.
2  // Use of this source code is governed by a BSD-style license that can be
3  // found in the LICENSE file.
4  
5  // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6  
7  #include "../../include/fpdfdoc/fpdf_doc.h"
8  #include "../../include/fxcrt/fx_xml.h"
9  CFX_WideString	GetFullName(CPDF_Dictionary* pFieldDict);
10  void			InitInterFormDict(CPDF_Dictionary*& pFormDict, CPDF_Document* pDocument);
11  FX_DWORD		CountInterFormFonts(CPDF_Dictionary* pFormDict);
12  CPDF_Font*		GetInterFormFont(CPDF_Dictionary* pFormDict, CPDF_Document* pDocument, FX_DWORD index, CFX_ByteString& csNameTag);
13  CPDF_Font*		GetInterFormFont(CPDF_Dictionary* pFormDict, CPDF_Document* pDocument, CFX_ByteString csNameTag);
14  CPDF_Font*		GetInterFormFont(CPDF_Dictionary* pFormDict, CPDF_Document* pDocument, CFX_ByteString csFontName, CFX_ByteString& csNameTag);
15  CPDF_Font*		GetNativeInterFormFont(CPDF_Dictionary* pFormDict, CPDF_Document* pDocument, FX_BYTE charSet, CFX_ByteString& csNameTag);
16  CPDF_Font*		GetNativeInterFormFont(CPDF_Dictionary* pFormDict, CPDF_Document* pDocument, CFX_ByteString& csNameTag);
17  FX_BOOL			FindInterFormFont(CPDF_Dictionary* pFormDict, const CPDF_Font* pFont, CFX_ByteString& csNameTag);
18  FX_BOOL			FindInterFormFont(CPDF_Dictionary* pFormDict, CPDF_Document* pDocument, CFX_ByteString csFontName, CPDF_Font*& pFont, CFX_ByteString& csNameTag);
19  void			AddInterFormFont(CPDF_Dictionary*& pFormDict, CPDF_Document* pDocument, const CPDF_Font* pFont, CFX_ByteString& csNameTag);
20  CPDF_Font*		AddNativeInterFormFont(CPDF_Dictionary*& pFormDict, CPDF_Document* pDocument, FX_BYTE charSet, CFX_ByteString& csNameTag);
21  CPDF_Font*		AddNativeInterFormFont(CPDF_Dictionary*& pFormDict, CPDF_Document* pDocument, CFX_ByteString& csNameTag);
22  void			RemoveInterFormFont(CPDF_Dictionary* pFormDict, const CPDF_Font* pFont);
23  void			RemoveInterFormFont(CPDF_Dictionary* pFormDict, CFX_ByteString csNameTag);
24  CPDF_Font*		GetDefaultInterFormFont(CPDF_Dictionary* pFormDict, CPDF_Document* pDocument);
25  void			SetDefaultInterFormFont(CPDF_Dictionary*& pFormDict, CPDF_Document* pDocument, const CPDF_Font* pFont);
26  void			SaveCheckedFieldStatus(CPDF_FormField* pField, CFX_ByteArray& statusArray);
27  FX_BOOL			NeedPDFEncodeForFieldFullName(const CFX_WideString& csFieldName);
28  FX_BOOL			NeedPDFEncodeForFieldTree(CPDF_Dictionary* pFieldDict, int nLevel = 0);
29  void			EncodeFieldName(const CFX_WideString& csName, CFX_ByteString& csT);
30  void			UpdateEncodeFieldName(CPDF_Dictionary* pFieldDict, int nLevel = 0);
31  const int nMaxRecursion = 32;
32  class _CFieldNameExtractor : public CFX_Object
33  {
34  public:
_CFieldNameExtractor(const CFX_WideString & full_name)35      _CFieldNameExtractor(const CFX_WideString& full_name)
36      {
37          m_pStart = full_name;
38          m_pEnd = m_pStart + full_name.GetLength();
39          m_pCur = m_pStart;
40      }
GetNext(FX_LPCWSTR & pSubName,FX_STRSIZE & size)41      void GetNext(FX_LPCWSTR &pSubName, FX_STRSIZE& size)
42      {
43          pSubName = m_pCur;
44          while (m_pCur < m_pEnd && m_pCur[0] != L'.') {
45              m_pCur++;
46          }
47          size = (FX_STRSIZE)(m_pCur - pSubName);
48          if (m_pCur < m_pEnd && m_pCur[0] == L'.') {
49              m_pCur++;
50          }
51      }
52  protected:
53      FX_LPCWSTR m_pStart;
54      FX_LPCWSTR m_pEnd;
55      FX_LPCWSTR m_pCur;
56  };
57  class CFieldTree : public CFX_Object
58  {
59  public:
60      struct _Node : public CFX_Object {
61          _Node *parent;
62          CFX_PtrArray children;
63          CFX_WideString short_name;
64          CPDF_FormField *field_ptr;
CountFieldsCFieldTree::_Node65          int CountFields(int nLevel = 0)
66          {
67              if (nLevel > nMaxRecursion) {
68                  return 0;
69              }
70              if (field_ptr) {
71                  return 1;
72              }
73              int count = 0;
74              for (int i = 0; i < children.GetSize(); i ++) {
75                  count += ((_Node *)children.GetAt(i))->CountFields(nLevel + 1);
76              }
77              return count;
78          }
GetFieldCFieldTree::_Node79          CPDF_FormField* GetField(int* fields_to_go)
80          {
81              if (field_ptr) {
82                  if (*fields_to_go == 0) {
83                      return field_ptr;
84                  }
85                  --*fields_to_go;
86                  return NULL;
87              }
88              for (int i = 0; i < children.GetSize(); i++) {
89                  _Node *pNode = (_Node *)children.GetAt(i);
90                  CPDF_FormField* pField = pNode->GetField(fields_to_go);
91                  if (pField) {
92                      return pField;
93                  }
94              }
95              return NULL;
96          }
GetFieldCFieldTree::_Node97          CPDF_FormField* GetField(int index)
98          {
99              int fields_to_go = index;
100              return GetField(&fields_to_go);
101          }
102      };
103      CFieldTree();
104      ~CFieldTree();
105      void SetField(const CFX_WideString &full_name, CPDF_FormField *field_ptr);
106      CPDF_FormField *GetField(const CFX_WideString &full_name);
107      CPDF_FormField *RemoveField(const CFX_WideString &full_name);
108      void RemoveAll();
109      _Node *FindNode(const CFX_WideString &full_name);
110      _Node * AddChild(_Node *pParent, const CFX_WideString &short_name, CPDF_FormField *field_ptr);
111      void RemoveNode(_Node *pNode, int nLevel = 0);
112      _Node *_Lookup(_Node *pParent, const CFX_WideString &short_name);
113      _Node m_Root;
114  };
CFieldTree()115  CFieldTree::CFieldTree()
116  {
117      m_Root.parent = NULL;
118      m_Root.field_ptr = NULL;
119  }
~CFieldTree()120  CFieldTree::~CFieldTree()
121  {
122      RemoveAll();
123  }
AddChild(_Node * pParent,const CFX_WideString & short_name,CPDF_FormField * field_ptr)124  CFieldTree::_Node *CFieldTree::AddChild(_Node *pParent, const CFX_WideString &short_name, CPDF_FormField *field_ptr)
125  {
126      if (pParent == NULL) {
127          return NULL;
128      }
129      _Node *pNode = FX_NEW _Node;
130      if (pNode == NULL) {
131          return NULL;
132      }
133      pNode->parent = pParent;
134      pNode->short_name = short_name;
135      pNode->field_ptr = field_ptr;
136      pParent->children.Add(pNode);
137      return pNode;
138  }
RemoveNode(_Node * pNode,int nLevel)139  void CFieldTree::RemoveNode(_Node *pNode, int nLevel)
140  {
141      if (pNode == NULL) {
142          return ;
143      }
144      if (nLevel > nMaxRecursion) {
145          delete pNode;
146          return ;
147      }
148      CFX_PtrArray& ptr_array = pNode->children;
149      for (int i = 0; i < ptr_array.GetSize(); i ++) {
150          _Node *pChild = (_Node *)ptr_array[i];
151          RemoveNode(pChild, nLevel + 1);
152      }
153      delete pNode;
154  }
_Lookup(_Node * pParent,const CFX_WideString & short_name)155  CFieldTree::_Node *CFieldTree::_Lookup(_Node *pParent, const CFX_WideString &short_name)
156  {
157      if (pParent == NULL) {
158          return NULL;
159      }
160      CFX_PtrArray& ptr_array = pParent->children;
161      for (int i = 0; i < ptr_array.GetSize(); i ++) {
162          _Node *pNode = (_Node *)ptr_array[i];
163          if (pNode->short_name.GetLength() == short_name.GetLength() &&
164                  FXSYS_memcmp32((FX_LPCWSTR)pNode->short_name, (FX_LPCWSTR)short_name, short_name.GetLength()*sizeof(FX_WCHAR)) == 0) {
165              return pNode;
166          }
167      }
168      return NULL;
169  }
RemoveAll()170  void CFieldTree::RemoveAll()
171  {
172      CFX_PtrArray& ptr_array = m_Root.children;
173      for (int i = 0; i < ptr_array.GetSize(); i ++) {
174          _Node *pNode = (_Node *)ptr_array[i];
175          RemoveNode(pNode);
176      }
177  }
SetField(const CFX_WideString & full_name,CPDF_FormField * field_ptr)178  void CFieldTree::SetField(const CFX_WideString &full_name, CPDF_FormField *field_ptr)
179  {
180      if (full_name == L"") {
181          return;
182      }
183      _CFieldNameExtractor name_extractor(full_name);
184      FX_LPCWSTR pName;
185      FX_STRSIZE nLength;
186      name_extractor.GetNext(pName, nLength);
187      _Node *pNode = &m_Root, *pLast = NULL;
188      while (nLength > 0) {
189          pLast = pNode;
190          CFX_WideString name = CFX_WideString(pName, nLength);
191          pNode = _Lookup(pLast, name);
192          if (pNode == NULL) {
193              pNode = AddChild(pLast, name, NULL);
194          }
195          name_extractor.GetNext(pName, nLength);
196      }
197      if (pNode != &m_Root) {
198          pNode->field_ptr = field_ptr;
199      }
200  }
GetField(const CFX_WideString & full_name)201  CPDF_FormField *CFieldTree::GetField(const CFX_WideString &full_name)
202  {
203      if (full_name == L"") {
204          return NULL;
205      }
206      _CFieldNameExtractor name_extractor(full_name);
207      FX_LPCWSTR pName;
208      FX_STRSIZE nLength;
209      name_extractor.GetNext(pName, nLength);
210      _Node *pNode = &m_Root, *pLast = NULL;
211      while (nLength > 0 && pNode) {
212          pLast = pNode;
213          CFX_WideString name = CFX_WideString(pName, nLength);
214          pNode = _Lookup(pLast, name);
215          name_extractor.GetNext(pName, nLength);
216      }
217      return pNode ? pNode->field_ptr : NULL;
218  }
RemoveField(const CFX_WideString & full_name)219  CPDF_FormField *CFieldTree::RemoveField(const CFX_WideString & full_name)
220  {
221      if (full_name == L"") {
222          return NULL;
223      }
224      _CFieldNameExtractor name_extractor(full_name);
225      FX_LPCWSTR pName;
226      FX_STRSIZE nLength;
227      name_extractor.GetNext(pName, nLength);
228      _Node *pNode = &m_Root, *pLast = NULL;
229      while (nLength > 0 && pNode) {
230          pLast = pNode;
231          CFX_WideString name = CFX_WideString(pName, nLength);
232          pNode = _Lookup(pLast, name);
233          name_extractor.GetNext(pName, nLength);
234      }
235      if (pNode && pNode != &m_Root) {
236          CFX_PtrArray& ptr_array = pLast->children;
237          for (int i = 0; i < ptr_array.GetSize(); i ++) {
238              if (pNode == (_Node *)ptr_array[i]) {
239                  ptr_array.RemoveAt(i);
240                  break;
241              }
242          }
243          CPDF_FormField *pField = pNode->field_ptr;
244          RemoveNode(pNode);
245          return pField;
246      }
247      return NULL;
248  }
FindNode(const CFX_WideString & full_name)249  CFieldTree::_Node *CFieldTree::FindNode(const CFX_WideString& full_name)
250  {
251      if (full_name == L"") {
252          return NULL;
253      }
254      _CFieldNameExtractor name_extractor(full_name);
255      FX_LPCWSTR pName;
256      FX_STRSIZE nLength;
257      name_extractor.GetNext(pName, nLength);
258      _Node *pNode = &m_Root, *pLast = NULL;
259      while (nLength > 0 && pNode) {
260          pLast = pNode;
261          CFX_WideString name = CFX_WideString(pName, nLength);
262          pNode = _Lookup(pLast, name);
263          name_extractor.GetNext(pName, nLength);
264      }
265      return pNode;
266  }
CPDF_InterForm(CPDF_Document * pDocument,FX_BOOL bGenerateAP)267  CPDF_InterForm::CPDF_InterForm(CPDF_Document* pDocument, FX_BOOL bGenerateAP) : CFX_PrivateData()
268  {
269      m_pDocument = pDocument;
270      m_bGenerateAP = bGenerateAP;
271      m_pFormNotify = NULL;
272      m_bUpdated = FALSE;
273      m_pFieldTree = FX_NEW CFieldTree;
274      CPDF_Dictionary* pRoot = m_pDocument->GetRoot();
275      m_pFormDict = pRoot->GetDict("AcroForm");
276      if (m_pFormDict == NULL) {
277          return;
278      }
279      CPDF_Array* pFields = m_pFormDict->GetArray("Fields");
280      if (pFields == NULL) {
281          return;
282      }
283      int count = pFields->GetCount();
284      for (int i = 0; i < count; i ++) {
285          LoadField(pFields->GetDict(i));
286      }
287  }
~CPDF_InterForm()288  CPDF_InterForm::~CPDF_InterForm()
289  {
290      FX_POSITION pos = m_ControlMap.GetStartPosition();
291      while (pos) {
292          FX_LPVOID key, value;
293          m_ControlMap.GetNextAssoc(pos, key, value);
294          delete (CPDF_FormControl*)value;
295      }
296      if (m_pFieldTree != NULL) {
297          int nCount = m_pFieldTree->m_Root.CountFields();
298          for (int i = 0; i < nCount; i++) {
299              CPDF_FormField *pField = m_pFieldTree->m_Root.GetField(i);
300              delete pField;
301          }
302          delete m_pFieldTree;
303      }
304  }
305  FX_BOOL	CPDF_InterForm::m_bUpdateAP = TRUE;
UpdatingAPEnabled()306  FX_BOOL CPDF_InterForm::UpdatingAPEnabled()
307  {
308      return m_bUpdateAP;
309  }
EnableUpdateAP(FX_BOOL bUpdateAP)310  void CPDF_InterForm::EnableUpdateAP(FX_BOOL bUpdateAP)
311  {
312      m_bUpdateAP = bUpdateAP;
313  }
GenerateNewResourceName(const CPDF_Dictionary * pResDict,FX_LPCSTR csType,int iMinLen,FX_LPCSTR csPrefix)314  CFX_ByteString CPDF_InterForm::GenerateNewResourceName(const CPDF_Dictionary* pResDict, FX_LPCSTR csType, int iMinLen, FX_LPCSTR csPrefix)
315  {
316      CFX_ByteString csStr = csPrefix;
317      CFX_ByteString csBType = csType;
318      if (csStr.IsEmpty()) {
319          if (csBType == "ExtGState") {
320              csStr = "GS";
321          } else if (csBType == "ColorSpace") {
322              csStr = "CS";
323          } else if (csBType == "Font") {
324              csStr = "ZiTi";
325          } else {
326              csStr = "Res";
327          }
328      }
329      CFX_ByteString csTmp = csStr;
330      int iCount = csStr.GetLength();
331      int m = 0;
332      if (iMinLen > 0) {
333          csTmp = "";
334          while (m < iMinLen && m < iCount) {
335              csTmp += csStr[m ++];
336          }
337          while (m < iMinLen) {
338              csTmp += '0' + m % 10;
339              m ++;
340          }
341      } else {
342          m = iCount;
343      }
344      if (pResDict == NULL) {
345          return csTmp;
346      }
347      CPDF_Dictionary* pDict = pResDict->GetDict(csType);
348      if (pDict == NULL) {
349          return csTmp;
350      }
351      int num = 0;
352      CFX_ByteString bsNum;
353      while (TRUE) {
354          if (!pDict->KeyExist(csTmp + bsNum)) {
355              return csTmp + bsNum;
356          }
357          if (m < iCount) {
358              csTmp += csStr[m ++];
359          } else {
360              bsNum.Format("%d", num++);
361          }
362          m ++;
363      }
364      return csTmp;
365  }
366  #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
367  typedef struct _PDF_FONTDATA {
368      FX_BOOL		bFind;
369      LOGFONTA	lf;
370  } PDF_FONTDATA, FAR* LPDF_FONTDATA;
EnumFontFamExProc(ENUMLOGFONTEXA * lpelfe,NEWTEXTMETRICEX * lpntme,DWORD FontType,LPARAM lParam)371  static int CALLBACK EnumFontFamExProc(	ENUMLOGFONTEXA *lpelfe,
372                                          NEWTEXTMETRICEX *lpntme,
373                                          DWORD FontType,
374                                          LPARAM lParam
375                                       )
376  {
377      if (FontType != 0x004 || strchr(lpelfe->elfLogFont.lfFaceName, '@') != NULL) {
378          return 1;
379      } else {
380          LPDF_FONTDATA pData = (LPDF_FONTDATA)lParam;
381          memcpy(&pData->lf, &lpelfe->elfLogFont, sizeof(LOGFONTA));
382          pData->bFind = TRUE;
383          return 0;
384      }
385  }
RetrieveSpecificFont(LOGFONTA & lf)386  static FX_BOOL RetrieveSpecificFont(LOGFONTA& lf)
387  {
388      PDF_FONTDATA fd;
389      memset(&fd, 0, sizeof(PDF_FONTDATA));
390      HDC hDC = ::GetDC(NULL);
391      EnumFontFamiliesExA(hDC, &lf, (FONTENUMPROCA)EnumFontFamExProc, (LPARAM)&fd, 0);
392      ::ReleaseDC(NULL, hDC);
393      if (fd.bFind) {
394          memcpy(&lf, &fd.lf, sizeof(LOGFONTA));
395      }
396      return fd.bFind;
397  }
RetrieveSpecificFont(FX_BYTE charSet,FX_BYTE pitchAndFamily,LPCSTR pcsFontName,LOGFONTA & lf)398  static FX_BOOL RetrieveSpecificFont(FX_BYTE charSet, FX_BYTE pitchAndFamily, LPCSTR pcsFontName, LOGFONTA& lf)
399  {
400      memset(&lf, 0, sizeof(LOGFONTA));
401      lf.lfCharSet = charSet;
402      lf.lfPitchAndFamily = pitchAndFamily;
403      if (pcsFontName != NULL) {
404          strcpy(lf.lfFaceName, pcsFontName);
405      }
406      return RetrieveSpecificFont(lf);
407  }
RetrieveStockFont(int iFontObject,FX_BYTE charSet,LOGFONTA & lf)408  static FX_BOOL RetrieveStockFont(int iFontObject, FX_BYTE charSet, LOGFONTA& lf)
409  {
410      HFONT hFont = (HFONT)::GetStockObject(iFontObject);
411      if (hFont != NULL) {
412          memset(&lf, 0, sizeof(LOGFONTA));
413          int iRet = ::GetObject(hFont, sizeof(LOGFONTA), &lf);
414          if (iRet > 0 && (lf.lfCharSet == charSet || charSet == 255)) {
415              return RetrieveSpecificFont(lf);
416          }
417      }
418      return FALSE;
419  }
420  #endif
AddSystemDefaultFont(const CPDF_Document * pDocument)421  CPDF_Font* CPDF_InterForm::AddSystemDefaultFont(const CPDF_Document* pDocument)
422  {
423      if (pDocument == NULL) {
424          return NULL;
425      }
426      CPDF_Font* pFont = NULL;
427  #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
428      LOGFONTA lf;
429      FX_BOOL bRet;
430      bRet = RetrieveStockFont(DEFAULT_GUI_FONT, 255, lf);
431      if (!bRet) {
432          bRet = RetrieveStockFont(SYSTEM_FONT, 255, lf);
433      }
434      if (bRet) {
435          pFont = ((CPDF_Document*)pDocument)->AddWindowsFont(&lf, FALSE, TRUE);
436      }
437  #endif
438      return pFont;
439  }
AddSystemFont(const CPDF_Document * pDocument,CFX_ByteString csFontName,FX_BYTE iCharSet)440  CPDF_Font* CPDF_InterForm::AddSystemFont(const CPDF_Document* pDocument, CFX_ByteString csFontName, FX_BYTE iCharSet)
441  {
442      if (pDocument == NULL || csFontName.IsEmpty()) {
443          return NULL;
444      }
445  #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
446      if (iCharSet == 1) {
447          iCharSet = GetNativeCharSet();
448      }
449      HFONT hFont = ::CreateFontA(0, 0, 0, 0, 0, 0, 0, 0, iCharSet, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH | FF_DONTCARE, (FX_LPCSTR)csFontName);
450      if (hFont != NULL) {
451          LOGFONTA lf;
452          memset(&lf, 0, sizeof(LOGFONTA));
453          ::GetObjectA(hFont, sizeof(LOGFONTA), &lf);
454          ::DeleteObject(hFont);
455          if (strlen(lf.lfFaceName) > 0) {
456              return ((CPDF_Document*)pDocument)->AddWindowsFont(&lf, FALSE, TRUE);
457          }
458      }
459  #endif
460      return NULL;
461  }
AddSystemFont(const CPDF_Document * pDocument,CFX_WideString csFontName,FX_BYTE iCharSet)462  CPDF_Font* CPDF_InterForm::AddSystemFont(const CPDF_Document* pDocument, CFX_WideString csFontName, FX_BYTE iCharSet)
463  {
464      if (pDocument == NULL || csFontName.IsEmpty()) {
465          return NULL;
466      }
467  #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
468      if (iCharSet == 1) {
469          iCharSet = GetNativeCharSet();
470      }
471      HFONT hFont = ::CreateFontW(0, 0, 0, 0, 0, 0, 0, 0, iCharSet, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH | FF_DONTCARE, csFontName);
472      if (hFont != NULL) {
473          LOGFONTA lf;
474          memset(&lf, 0, sizeof(LOGFONTA));
475          ::GetObject(hFont, sizeof(LOGFONTA), &lf);
476          ::DeleteObject(hFont);
477          if (strlen(lf.lfFaceName) > 0) {
478              return ((CPDF_Document*)pDocument)->AddWindowsFont(&lf, FALSE, TRUE);
479          }
480      }
481  #endif
482      return NULL;
483  }
AddStandardFont(const CPDF_Document * pDocument,CFX_ByteString csFontName)484  CPDF_Font* CPDF_InterForm::AddStandardFont(const CPDF_Document* pDocument, CFX_ByteString csFontName)
485  {
486      if (pDocument == NULL || csFontName.IsEmpty()) {
487          return NULL;
488      }
489      CPDF_Font* pFont = NULL;
490      if (csFontName == "ZapfDingbats") {
491          pFont = ((CPDF_Document*)pDocument)->AddStandardFont(csFontName, NULL);
492      } else {
493          CPDF_FontEncoding encoding(PDFFONT_ENCODING_WINANSI);
494          pFont = ((CPDF_Document*)pDocument)->AddStandardFont(csFontName, &encoding);
495      }
496      return pFont;
497  }
GetNativeFont(FX_BYTE charSet,FX_LPVOID pLogFont)498  CFX_ByteString CPDF_InterForm::GetNativeFont(FX_BYTE charSet, FX_LPVOID pLogFont)
499  {
500      CFX_ByteString csFontName;
501  #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
502      LOGFONTA lf;
503      FX_BOOL bRet;
504      if (charSet == ANSI_CHARSET) {
505          csFontName = "Helvetica";
506          return csFontName;
507      }
508      bRet = FALSE;
509      if (charSet == SHIFTJIS_CHARSET) {
510          bRet = RetrieveSpecificFont(charSet, DEFAULT_PITCH | FF_DONTCARE, "MS Mincho", lf);
511      } else if (charSet == GB2312_CHARSET) {
512          bRet = RetrieveSpecificFont(charSet, DEFAULT_PITCH | FF_DONTCARE, "SimSun", lf);
513      } else if (charSet == CHINESEBIG5_CHARSET) {
514          bRet = RetrieveSpecificFont(charSet, DEFAULT_PITCH | FF_DONTCARE, "MingLiU", lf);
515      }
516      if (!bRet) {
517          bRet = RetrieveSpecificFont(charSet, DEFAULT_PITCH | FF_DONTCARE, "Arial Unicode MS", lf);
518      }
519      if (!bRet) {
520          bRet = RetrieveSpecificFont(charSet, DEFAULT_PITCH | FF_DONTCARE, "Microsoft Sans Serif", lf);
521      }
522      if (!bRet) {
523          bRet = RetrieveSpecificFont(charSet, DEFAULT_PITCH | FF_DONTCARE, NULL, lf);
524      }
525      if (bRet) {
526          if (pLogFont != NULL) {
527              memcpy(pLogFont, &lf, sizeof(LOGFONTA));
528          }
529          csFontName = lf.lfFaceName;
530          return csFontName;
531      }
532  #endif
533      return csFontName;
534  }
GetNativeFont(FX_LPVOID pLogFont)535  CFX_ByteString CPDF_InterForm::GetNativeFont(FX_LPVOID pLogFont)
536  {
537  #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
538      FX_BYTE charSet = GetNativeCharSet();
539      return GetNativeFont(charSet, pLogFont);
540  #else
541      return CFX_ByteString();
542  #endif
543  }
GetNativeCharSet()544  FX_BYTE CPDF_InterForm::GetNativeCharSet()
545  {
546  #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
547      FX_BYTE charSet = ANSI_CHARSET;
548      UINT iCodePage = ::GetACP();
549      switch (iCodePage) {
550          case 932:
551              charSet = SHIFTJIS_CHARSET;
552              break;
553          case 936:
554              charSet = GB2312_CHARSET;
555              break;
556          case 950:
557              charSet = CHINESEBIG5_CHARSET;
558              break;
559          case 1252:
560              charSet = ANSI_CHARSET;
561              break;
562          case 874:
563              charSet = THAI_CHARSET;
564              break;
565          case 949:
566              charSet = HANGUL_CHARSET;
567              break;
568          case 1200:
569              charSet = ANSI_CHARSET;
570              break;
571          case 1250:
572              charSet = EASTEUROPE_CHARSET;
573              break;
574          case 1251:
575              charSet = RUSSIAN_CHARSET;
576              break;
577          case 1253:
578              charSet = GREEK_CHARSET;
579              break;
580          case 1254:
581              charSet = TURKISH_CHARSET;
582              break;
583          case 1255:
584              charSet = HEBREW_CHARSET;
585              break;
586          case 1256:
587              charSet = ARABIC_CHARSET;
588              break;
589          case 1257:
590              charSet = BALTIC_CHARSET;
591              break;
592          case 1258:
593              charSet = VIETNAMESE_CHARSET;
594              break;
595          case 1361:
596              charSet = JOHAB_CHARSET;
597              break;
598      }
599      return charSet;
600  #else
601      return 0;
602  #endif
603  }
AddNativeFont(FX_BYTE charSet,const CPDF_Document * pDocument)604  CPDF_Font* CPDF_InterForm::AddNativeFont(FX_BYTE charSet, const CPDF_Document* pDocument)
605  {
606      if (pDocument == NULL) {
607          return NULL;
608      }
609      CPDF_Font* pFont = NULL;
610  #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
611      LOGFONTA lf;
612      CFX_ByteString csFontName = GetNativeFont(charSet, &lf);
613      if (!csFontName.IsEmpty()) {
614          if (csFontName == "Helvetica") {
615              pFont = AddStandardFont(pDocument, csFontName);
616          } else {
617              pFont = ((CPDF_Document*)pDocument)->AddWindowsFont(&lf, FALSE, TRUE);
618          }
619      }
620  #endif
621      return pFont;
622  }
AddNativeFont(const CPDF_Document * pDocument)623  CPDF_Font* CPDF_InterForm::AddNativeFont(const CPDF_Document* pDocument)
624  {
625      if (pDocument == NULL) {
626          return NULL;
627      }
628      CPDF_Font* pFont = NULL;
629      FX_BYTE charSet = GetNativeCharSet();
630      pFont = AddNativeFont(charSet, pDocument);
631      return pFont;
632  }
ValidateFieldName(CFX_WideString & csNewFieldName,int iType,const CPDF_FormField * pExcludedField,const CPDF_FormControl * pExcludedControl)633  FX_BOOL CPDF_InterForm::ValidateFieldName(CFX_WideString& csNewFieldName, int iType, const CPDF_FormField* pExcludedField, const CPDF_FormControl* pExcludedControl)
634  {
635      if (csNewFieldName.IsEmpty()) {
636          return FALSE;
637      }
638      int iPos = 0;
639      int iLength = csNewFieldName.GetLength();
640      CFX_WideString csSub;
641      while (TRUE) {
642          while (iPos < iLength && (csNewFieldName[iPos] == L'.' || csNewFieldName[iPos] == L' ')) {
643              iPos ++;
644          }
645          if (iPos < iLength && !csSub.IsEmpty()) {
646              csSub += L'.';
647          }
648          while (iPos < iLength && csNewFieldName[iPos] != L'.') {
649              csSub += csNewFieldName[iPos ++];
650          }
651          for (int i = csSub.GetLength() - 1; i > -1; i --) {
652              if (csSub[i] == L' ' || csSub[i] == L'.') {
653                  csSub.SetAt(i, L'\0');
654              } else {
655                  break;
656              }
657          }
658          FX_DWORD dwCount = m_pFieldTree->m_Root.CountFields();
659          for (FX_DWORD m = 0; m < dwCount; m ++) {
660              CPDF_FormField* pField = m_pFieldTree->m_Root.GetField(m);
661              if (pField == NULL) {
662                  continue;
663              }
664              if (pField == pExcludedField) {
665                  if (pExcludedControl != NULL) {
666                      if (pField->CountControls() < 2) {
667                          continue;
668                      }
669                  } else {
670                      continue;
671                  }
672              }
673              CFX_WideString csFullName = pField->GetFullName();
674              int iRet = CompareFieldName(csSub, csFullName);
675              if (iRet == 1) {
676                  if (pField->GetFieldType() != iType) {
677                      return FALSE;
678                  }
679              } else if (iRet == 2 && csSub == csNewFieldName) {
680                  if (csFullName[iPos] == L'.') {
681                      return FALSE;
682                  }
683              } else if (iRet == 3 && csSub == csNewFieldName) {
684                  if (csNewFieldName[csFullName.GetLength()] == L'.') {
685                      return FALSE;
686                  }
687              }
688          }
689          if (iPos >= iLength) {
690              break;
691          }
692      }
693      if (csSub.IsEmpty()) {
694          return FALSE;
695      }
696      csNewFieldName = csSub;
697      return TRUE;
698  }
ValidateFieldName(CFX_WideString & csNewFieldName,int iType)699  FX_BOOL CPDF_InterForm::ValidateFieldName(CFX_WideString& csNewFieldName, int iType)
700  {
701      return ValidateFieldName(csNewFieldName, iType, NULL, NULL);
702  }
ValidateFieldName(const CPDF_FormField * pField,CFX_WideString & csNewFieldName)703  FX_BOOL CPDF_InterForm::ValidateFieldName(const CPDF_FormField* pField, CFX_WideString& csNewFieldName)
704  {
705      if (pField == NULL || csNewFieldName.IsEmpty()) {
706          return FALSE;
707      }
708      return ValidateFieldName(csNewFieldName, ((CPDF_FormField*)pField)->GetFieldType(), pField, NULL);
709  }
ValidateFieldName(const CPDF_FormControl * pControl,CFX_WideString & csNewFieldName)710  FX_BOOL CPDF_InterForm::ValidateFieldName(const CPDF_FormControl* pControl, CFX_WideString& csNewFieldName)
711  {
712      if (pControl == NULL || csNewFieldName.IsEmpty()) {
713          return FALSE;
714      }
715      CPDF_FormField* pField = ((CPDF_FormControl*)pControl)->GetField();
716      return ValidateFieldName(csNewFieldName, pField->GetFieldType(), pField, pControl);
717  }
CompareFieldName(const CFX_ByteString & name1,const CFX_ByteString & name2)718  int CPDF_InterForm::CompareFieldName(const CFX_ByteString& name1, const CFX_ByteString& name2)
719  {
720      FX_LPCSTR ptr1 = name1, ptr2 = name2;
721      if (name1.GetLength() != name2.GetLength()) {
722          int i = 0;
723          while (ptr1[i] == ptr2[i]) {
724              i ++;
725          }
726          if (i == name1.GetLength()) {
727              return 2;
728          }
729          if (i == name2.GetLength()) {
730              return 3;
731          }
732          return 0;
733      } else {
734          return name1 == name2 ? 1 : 0;
735      }
736  }
CompareFieldName(const CFX_WideString & name1,const CFX_WideString & name2)737  int CPDF_InterForm::CompareFieldName(const CFX_WideString& name1, const CFX_WideString& name2)
738  {
739      FX_LPCWSTR ptr1 = name1, ptr2 = name2;
740      if (name1.GetLength() != name2.GetLength()) {
741          int i = 0;
742          while (ptr1[i] == ptr2[i]) {
743              i ++;
744          }
745          if (i == name1.GetLength()) {
746              return 2;
747          }
748          if (i == name2.GetLength()) {
749              return 3;
750          }
751          return 0;
752      } else {
753          return name1 == name2 ? 1 : 0;
754      }
755  }
CountFields(const CFX_WideString & csFieldName)756  FX_DWORD CPDF_InterForm::CountFields(const CFX_WideString &csFieldName)
757  {
758      if (csFieldName.IsEmpty()) {
759          return (FX_DWORD)m_pFieldTree->m_Root.CountFields();
760      }
761      CFieldTree::_Node *pNode = m_pFieldTree->FindNode(csFieldName);
762      if (pNode == NULL) {
763          return 0;
764      }
765      return pNode->CountFields();
766  }
GetField(FX_DWORD index,const CFX_WideString & csFieldName)767  CPDF_FormField* CPDF_InterForm::GetField(FX_DWORD index, const CFX_WideString &csFieldName)
768  {
769      if (csFieldName == L"") {
770          return m_pFieldTree->m_Root.GetField(index);
771      }
772      CFieldTree::_Node *pNode = m_pFieldTree->FindNode(csFieldName);
773      if (pNode == NULL) {
774          return NULL;
775      }
776      return pNode->GetField(index);
777  }
GetAllFieldNames(CFX_WideStringArray & allFieldNames)778  void CPDF_InterForm::GetAllFieldNames(CFX_WideStringArray& allFieldNames)
779  {
780      allFieldNames.RemoveAll();
781      int nCount = m_pFieldTree->m_Root.CountFields();
782      for (int i = 0; i < nCount; i ++) {
783          CPDF_FormField *pField = m_pFieldTree->m_Root.GetField(i);
784          if (pField) {
785              CFX_WideString full_name = GetFullName(pField->GetFieldDict());
786              allFieldNames.Add(full_name);
787          }
788      }
789  }
IsValidFormField(const void * pField)790  FX_BOOL CPDF_InterForm::IsValidFormField(const void* pField)
791  {
792      if (pField == NULL) {
793          return FALSE;
794      }
795      int nCount = m_pFieldTree->m_Root.CountFields();
796      for (int i = 0; i < nCount; i++) {
797          CPDF_FormField *pFormField = m_pFieldTree->m_Root.GetField(i);
798          if (pField == pFormField) {
799              return TRUE;
800          }
801      }
802      return FALSE;
803  }
GetFieldByDict(CPDF_Dictionary * pFieldDict) const804  CPDF_FormField* CPDF_InterForm::GetFieldByDict(CPDF_Dictionary* pFieldDict) const
805  {
806      if (pFieldDict == NULL) {
807          return NULL;
808      }
809      CFX_WideString csWName = GetFullName(pFieldDict);
810      return m_pFieldTree->GetField(csWName);
811  }
CountControls(CFX_WideString csFieldName)812  FX_DWORD CPDF_InterForm::CountControls(CFX_WideString csFieldName)
813  {
814      if (csFieldName.IsEmpty()) {
815          return (FX_DWORD)m_ControlMap.GetCount();
816      }
817      CPDF_FormField *pField = m_pFieldTree->GetField(csFieldName);
818      if (pField == NULL) {
819          return 0;
820      }
821      return pField->m_ControlList.GetSize();
822  }
GetControl(FX_DWORD index,CFX_WideString csFieldName)823  CPDF_FormControl* CPDF_InterForm::GetControl(FX_DWORD index, CFX_WideString csFieldName)
824  {
825      CPDF_FormField *pField = m_pFieldTree->GetField(csFieldName);
826      if (pField == NULL) {
827          return NULL;
828      }
829      if (index < (FX_DWORD)pField->m_ControlList.GetSize()) {
830          return (CPDF_FormControl *)pField->m_ControlList.GetAt(index);
831      }
832      return NULL;
833  }
IsValidFormControl(const void * pControl)834  FX_BOOL CPDF_InterForm::IsValidFormControl(const void* pControl)
835  {
836      if (pControl == NULL) {
837          return FALSE;
838      }
839      FX_POSITION pos = m_ControlMap.GetStartPosition();
840      while (pos) {
841          CPDF_Dictionary* pWidgetDict = NULL;
842          void* pFormControl = NULL;
843          m_ControlMap.GetNextAssoc(pos, (FX_LPVOID&)pWidgetDict, pFormControl);
844          if (pControl == pFormControl) {
845              return TRUE;
846          }
847      }
848      return FALSE;
849  }
CountPageControls(CPDF_Page * pPage) const850  int CPDF_InterForm::CountPageControls(CPDF_Page* pPage) const
851  {
852      CPDF_Array* pAnnotList = pPage->m_pFormDict->GetArray("Annots");
853      if (pAnnotList == NULL) {
854          return 0;
855      }
856      int count = 0;
857      for (FX_DWORD i = 0; i < pAnnotList->GetCount(); i ++) {
858          CPDF_Dictionary* pAnnot = pAnnotList->GetDict(i);
859          if (pAnnot == NULL) {
860              continue;
861          }
862          CPDF_FormControl* pControl;
863          if (!m_ControlMap.Lookup(pAnnot, (FX_LPVOID&)pControl)) {
864              continue;
865          }
866          count ++;
867      }
868      return count;
869  }
GetPageControl(CPDF_Page * pPage,int index) const870  CPDF_FormControl* CPDF_InterForm::GetPageControl(CPDF_Page* pPage, int index) const
871  {
872      CPDF_Array* pAnnotList = pPage->m_pFormDict->GetArray("Annots");
873      if (pAnnotList == NULL) {
874          return NULL;
875      }
876      int count = 0;
877      for (FX_DWORD i = 0; i < pAnnotList->GetCount(); i ++) {
878          CPDF_Dictionary* pAnnot = pAnnotList->GetDict(i);
879          if (pAnnot == NULL) {
880              continue;
881          }
882          CPDF_FormControl* pControl;
883          if (!m_ControlMap.Lookup(pAnnot, (FX_LPVOID&)pControl)) {
884              continue;
885          }
886          if (index == count) {
887              return pControl;
888          }
889          count ++;
890      }
891      return NULL;
892  }
GetControlAtPoint(CPDF_Page * pPage,FX_FLOAT pdf_x,FX_FLOAT pdf_y) const893  CPDF_FormControl* CPDF_InterForm::GetControlAtPoint(CPDF_Page* pPage, FX_FLOAT pdf_x, FX_FLOAT pdf_y) const
894  {
895      CPDF_Array* pAnnotList = pPage->m_pFormDict->GetArray("Annots");
896      if (pAnnotList == NULL) {
897          return NULL;
898      }
899      for (FX_DWORD i = pAnnotList->GetCount(); i > 0; i --) {
900          CPDF_Dictionary* pAnnot = pAnnotList->GetDict(i - 1);
901          if (pAnnot == NULL) {
902              continue;
903          }
904          CPDF_FormControl* pControl;
905          if (!m_ControlMap.Lookup(pAnnot, (FX_LPVOID&)pControl)) {
906              continue;
907          }
908          CFX_FloatRect rect = pControl->GetRect();
909          if (rect.Contains(pdf_x, pdf_y)) {
910              return pControl;
911          }
912      }
913      return NULL;
914  }
GetControlByDict(CPDF_Dictionary * pWidgetDict) const915  CPDF_FormControl* CPDF_InterForm::GetControlByDict(CPDF_Dictionary* pWidgetDict) const
916  {
917      CPDF_FormControl* pControl = NULL;
918      m_ControlMap.Lookup(pWidgetDict, (FX_LPVOID&)pControl);
919      return pControl;
920  }
CountInternalFields(const CFX_WideString & csFieldName) const921  FX_DWORD CPDF_InterForm::CountInternalFields(const CFX_WideString& csFieldName) const
922  {
923      if (m_pFormDict == NULL) {
924          return 0;
925      }
926      CPDF_Array* pArray = m_pFormDict->GetArray("Fields");
927      if (pArray == NULL) {
928          return 0;
929      }
930      if (csFieldName.IsEmpty()) {
931          return pArray->GetCount();
932      } else {
933          int iLength = csFieldName.GetLength();
934          int iPos = 0;
935          CPDF_Dictionary* pDict = NULL;
936          while (pArray != NULL) {
937              CFX_WideString csSub;
938              if (iPos < iLength && csFieldName[iPos] == L'.') {
939                  iPos ++;
940              }
941              while (iPos < iLength && csFieldName[iPos] != L'.') {
942                  csSub += csFieldName[iPos ++];
943              }
944              int iCount = pArray->GetCount();
945              FX_BOOL bFind = FALSE;
946              for (int i = 0; i < iCount; i ++) {
947                  pDict = pArray->GetDict(i);
948                  if (pDict == NULL) {
949                      continue;
950                  }
951                  CFX_WideString csT = pDict->GetUnicodeText("T");
952                  if (csT == csSub) {
953                      bFind = TRUE;
954                      break;
955                  }
956              }
957              if (!bFind) {
958                  return 0;
959              }
960              if (iPos >= iLength) {
961                  break;
962              }
963              pArray = pDict->GetArray("Kids");
964          }
965          if (pDict == NULL) {
966              return 0;
967          } else {
968              pArray = pDict->GetArray("Kids");
969              if (pArray == NULL) {
970                  return 1;
971              } else {
972                  return pArray->GetCount();
973              }
974          }
975      }
976  }
GetInternalField(FX_DWORD index,const CFX_WideString & csFieldName) const977  CPDF_Dictionary* CPDF_InterForm::GetInternalField(FX_DWORD index, const CFX_WideString& csFieldName) const
978  {
979      if (m_pFormDict == NULL) {
980          return NULL;
981      }
982      CPDF_Array* pArray = m_pFormDict->GetArray("Fields");
983      if (pArray == NULL) {
984          return 0;
985      }
986      if (csFieldName.IsEmpty()) {
987          return pArray->GetDict(index);
988      } else {
989          int iLength = csFieldName.GetLength();
990          int iPos = 0;
991          CPDF_Dictionary* pDict = NULL;
992          while (pArray != NULL) {
993              CFX_WideString csSub;
994              if (iPos < iLength && csFieldName[iPos] == L'.') {
995                  iPos ++;
996              }
997              while (iPos < iLength && csFieldName[iPos] != L'.') {
998                  csSub += csFieldName[iPos ++];
999              }
1000              int iCount = pArray->GetCount();
1001              FX_BOOL bFind = FALSE;
1002              for (int i = 0; i < iCount; i ++) {
1003                  pDict = pArray->GetDict(i);
1004                  if (pDict == NULL) {
1005                      continue;
1006                  }
1007                  CFX_WideString csT = pDict->GetUnicodeText("T");
1008                  if (csT == csSub) {
1009                      bFind = TRUE;
1010                      break;
1011                  }
1012              }
1013              if (!bFind) {
1014                  return NULL;
1015              }
1016              if (iPos >= iLength) {
1017                  break;
1018              }
1019              pArray = pDict->GetArray("Kids");
1020          }
1021          if (pDict == NULL) {
1022              return NULL;
1023          } else {
1024              pArray = pDict->GetArray("Kids");
1025              if (pArray == NULL) {
1026                  return pDict;
1027              } else {
1028                  return pArray->GetDict(index);
1029              }
1030          }
1031      }
1032  }
NeedConstructAP()1033  FX_BOOL CPDF_InterForm::NeedConstructAP()
1034  {
1035      if (m_pFormDict == NULL) {
1036          return FALSE;
1037      }
1038      return m_pFormDict->GetBoolean("NeedAppearances");
1039  }
NeedConstructAP(FX_BOOL bNeedAP)1040  void CPDF_InterForm::NeedConstructAP(FX_BOOL bNeedAP)
1041  {
1042      if (m_pFormDict == NULL) {
1043          InitInterFormDict(m_pFormDict, m_pDocument);
1044      }
1045      m_pFormDict->SetAtBoolean("NeedAppearances", bNeedAP);
1046      m_bGenerateAP = bNeedAP;
1047  }
CountFieldsInCalculationOrder()1048  int CPDF_InterForm::CountFieldsInCalculationOrder()
1049  {
1050      if (m_pFormDict == NULL) {
1051          return 0;
1052      }
1053      CPDF_Array* pArray = m_pFormDict->GetArray("CO");
1054      if (pArray == NULL) {
1055          return 0;
1056      }
1057      return pArray->GetCount();
1058  }
GetFieldInCalculationOrder(int index)1059  CPDF_FormField* CPDF_InterForm::GetFieldInCalculationOrder(int index)
1060  {
1061      if (m_pFormDict == NULL || index < 0) {
1062          return NULL;
1063      }
1064      CPDF_Array* pArray = m_pFormDict->GetArray("CO");
1065      if (pArray == NULL) {
1066          return NULL;
1067      }
1068      CPDF_Object* pElement = pArray->GetElementValue(index);
1069      if (pElement != NULL && pElement->GetType() == PDFOBJ_DICTIONARY) {
1070          return GetFieldByDict((CPDF_Dictionary*)pElement);
1071      }
1072      return NULL;
1073  }
FindFieldInCalculationOrder(const CPDF_FormField * pField)1074  int CPDF_InterForm::FindFieldInCalculationOrder(const CPDF_FormField* pField)
1075  {
1076      if (m_pFormDict == NULL || pField == NULL) {
1077          return -1;
1078      }
1079      CPDF_Array* pArray = m_pFormDict->GetArray("CO");
1080      if (pArray == NULL) {
1081          return -1;
1082      }
1083      for (FX_DWORD i = 0; i < pArray->GetCount(); i ++) {
1084          CPDF_Object* pElement = pArray->GetElementValue(i);
1085          if (pElement == pField->m_pDict) {
1086              return i;
1087          }
1088      }
1089      return -1;
1090  }
CountFormFonts()1091  FX_DWORD CPDF_InterForm::CountFormFonts()
1092  {
1093      return CountInterFormFonts(m_pFormDict);
1094  }
GetFormFont(FX_DWORD index,CFX_ByteString & csNameTag)1095  CPDF_Font* CPDF_InterForm::GetFormFont(FX_DWORD index, CFX_ByteString& csNameTag)
1096  {
1097      return GetInterFormFont(m_pFormDict, m_pDocument, index, csNameTag);
1098  }
GetFormFont(CFX_ByteString csNameTag)1099  CPDF_Font* CPDF_InterForm::GetFormFont(CFX_ByteString csNameTag)
1100  {
1101      return GetInterFormFont(m_pFormDict, m_pDocument, csNameTag);
1102  }
GetFormFont(CFX_ByteString csFontName,CFX_ByteString & csNameTag)1103  CPDF_Font* CPDF_InterForm::GetFormFont(CFX_ByteString csFontName, CFX_ByteString& csNameTag)
1104  {
1105      return GetInterFormFont(m_pFormDict, m_pDocument, csFontName, csNameTag);
1106  }
GetNativeFormFont(FX_BYTE charSet,CFX_ByteString & csNameTag)1107  CPDF_Font* CPDF_InterForm::GetNativeFormFont(FX_BYTE charSet, CFX_ByteString& csNameTag)
1108  {
1109      return GetNativeInterFormFont(m_pFormDict, m_pDocument, charSet, csNameTag);
1110  }
GetNativeFormFont(CFX_ByteString & csNameTag)1111  CPDF_Font* CPDF_InterForm::GetNativeFormFont(CFX_ByteString& csNameTag)
1112  {
1113      return GetNativeInterFormFont(m_pFormDict, m_pDocument, csNameTag);
1114  }
FindFormFont(const CPDF_Font * pFont,CFX_ByteString & csNameTag)1115  FX_BOOL CPDF_InterForm::FindFormFont(const CPDF_Font* pFont, CFX_ByteString& csNameTag)
1116  {
1117      return FindInterFormFont(m_pFormDict, pFont, csNameTag);
1118  }
FindFormFont(CFX_ByteString csFontName,CPDF_Font * & pFont,CFX_ByteString & csNameTag)1119  FX_BOOL CPDF_InterForm::FindFormFont(CFX_ByteString csFontName, CPDF_Font*& pFont, CFX_ByteString& csNameTag)
1120  {
1121      return FindInterFormFont(m_pFormDict, m_pDocument, csFontName, pFont, csNameTag);
1122  }
AddFormFont(const CPDF_Font * pFont,CFX_ByteString & csNameTag)1123  void CPDF_InterForm::AddFormFont(const CPDF_Font* pFont, CFX_ByteString& csNameTag)
1124  {
1125      AddInterFormFont(m_pFormDict, m_pDocument, pFont, csNameTag);
1126      m_bUpdated = TRUE;
1127  }
AddNativeFormFont(FX_BYTE charSet,CFX_ByteString & csNameTag)1128  CPDF_Font* CPDF_InterForm::AddNativeFormFont(FX_BYTE charSet, CFX_ByteString& csNameTag)
1129  {
1130      m_bUpdated = TRUE;
1131      return AddNativeInterFormFont(m_pFormDict, m_pDocument, charSet, csNameTag);
1132  }
AddNativeFormFont(CFX_ByteString & csNameTag)1133  CPDF_Font* CPDF_InterForm::AddNativeFormFont(CFX_ByteString& csNameTag)
1134  {
1135      m_bUpdated = TRUE;
1136      return AddNativeInterFormFont(m_pFormDict, m_pDocument, csNameTag);
1137  }
RemoveFormFont(const CPDF_Font * pFont)1138  void CPDF_InterForm::RemoveFormFont(const CPDF_Font* pFont)
1139  {
1140      m_bUpdated = TRUE;
1141      RemoveInterFormFont(m_pFormDict, pFont);
1142  }
RemoveFormFont(CFX_ByteString csNameTag)1143  void CPDF_InterForm::RemoveFormFont(CFX_ByteString csNameTag)
1144  {
1145      m_bUpdated = TRUE;
1146      RemoveInterFormFont(m_pFormDict, csNameTag);
1147  }
GetDefaultAppearance()1148  CPDF_DefaultAppearance CPDF_InterForm::GetDefaultAppearance()
1149  {
1150      CFX_ByteString csDA;
1151      if (m_pFormDict == NULL) {
1152          return csDA;
1153      }
1154      csDA = m_pFormDict->GetString("DA");
1155      return csDA;
1156  }
GetDefaultFormFont()1157  CPDF_Font* CPDF_InterForm::GetDefaultFormFont()
1158  {
1159      return GetDefaultInterFormFont(m_pFormDict, m_pDocument);
1160  }
GetFormAlignment()1161  int CPDF_InterForm::GetFormAlignment()
1162  {
1163      if (m_pFormDict == NULL) {
1164          return 0;
1165      }
1166      return m_pFormDict->GetInteger("Q", 0);
1167  }
ResetForm(const CFX_PtrArray & fields,FX_BOOL bIncludeOrExclude,FX_BOOL bNotify)1168  FX_BOOL CPDF_InterForm::ResetForm(const CFX_PtrArray& fields, FX_BOOL bIncludeOrExclude, FX_BOOL bNotify)
1169  {
1170      if (bNotify && m_pFormNotify != NULL) {
1171          int iRet = m_pFormNotify->BeforeFormReset(this);
1172          if (iRet < 0) {
1173              return FALSE;
1174          }
1175      }
1176      int nCount = m_pFieldTree->m_Root.CountFields();
1177      for (int i = 0; i < nCount; i++) {
1178          CPDF_FormField* pField = m_pFieldTree->m_Root.GetField(i);
1179          if (pField == NULL) {
1180              continue;
1181          }
1182          FX_BOOL bFind = FALSE;
1183          int iCount = fields.GetSize();
1184          for (int i = 0; i < iCount; i ++) {
1185              if (pField == (CPDF_FormField*)fields[i]) {
1186                  bFind = TRUE;
1187                  break;
1188              }
1189          }
1190          if ((bIncludeOrExclude && bFind) || (!bIncludeOrExclude && !bFind)) {
1191              pField->ResetField(bNotify);
1192          }
1193      }
1194      if (bNotify && m_pFormNotify != NULL) {
1195          m_pFormNotify->AfterFormReset(this);
1196      }
1197      return TRUE;
1198  }
ResetForm(FX_BOOL bNotify)1199  FX_BOOL CPDF_InterForm::ResetForm(FX_BOOL bNotify)
1200  {
1201      if (bNotify && m_pFormNotify != NULL) {
1202          int iRet = m_pFormNotify->BeforeFormReset(this);
1203          if (iRet < 0) {
1204              return FALSE;
1205          }
1206      }
1207      int nCount = m_pFieldTree->m_Root.CountFields();
1208      for (int i = 0; i < nCount; i++) {
1209          CPDF_FormField* pField = m_pFieldTree->m_Root.GetField(i);
1210          if (pField == NULL) {
1211              continue;
1212          }
1213          pField->ResetField(bNotify);
1214      }
1215      if (bNotify && m_pFormNotify != NULL) {
1216          m_pFormNotify->AfterFormReset(this);
1217      }
1218      return TRUE;
1219  }
ReloadForm()1220  void CPDF_InterForm::ReloadForm()
1221  {
1222      FX_POSITION pos = m_ControlMap.GetStartPosition();
1223      while (pos) {
1224          CPDF_Dictionary* pWidgetDict;
1225          CPDF_FormControl* pControl;
1226          m_ControlMap.GetNextAssoc(pos, (FX_LPVOID&)pWidgetDict, (FX_LPVOID&)pControl);
1227          delete pControl;
1228      }
1229      m_ControlMap.RemoveAll();
1230      int nCount = m_pFieldTree->m_Root.CountFields();
1231      for (int k = 0; k < nCount; k ++) {
1232          CPDF_FormField* pField = m_pFieldTree->m_Root.GetField(k);
1233          delete pField;
1234      }
1235      m_pFieldTree->RemoveAll();
1236      if (m_pFormDict == NULL) {
1237          return;
1238      }
1239      CPDF_Array* pFields = m_pFormDict->GetArray("Fields");
1240      if (pFields == NULL) {
1241          return;
1242      }
1243      int iCount = pFields->GetCount();
1244      for (int i = 0; i < iCount; i ++) {
1245          LoadField(pFields->GetDict(i));
1246      }
1247  }
LoadField(CPDF_Dictionary * pFieldDict,int nLevel)1248  void CPDF_InterForm::LoadField(CPDF_Dictionary* pFieldDict, int nLevel)
1249  {
1250      if (nLevel > nMaxRecursion) {
1251          return;
1252      }
1253      if (pFieldDict == NULL) {
1254          return;
1255      }
1256      FX_DWORD dwParentObjNum = pFieldDict->GetObjNum();
1257      CPDF_Array* pKids = pFieldDict->GetArray("Kids");
1258      if (!pKids) {
1259          AddTerminalField(pFieldDict);
1260          return;
1261      }
1262      CPDF_Dictionary* pFirstKid = pKids->GetDict(0);
1263      if (pFirstKid == NULL) {
1264          return;
1265      }
1266      if (pFirstKid->KeyExist("T") || pFirstKid->KeyExist("Kids")) {
1267          for (FX_DWORD i = 0; i < pKids->GetCount(); i ++) {
1268              CPDF_Dictionary * pChildDict = pKids->GetDict(i);
1269              if (pChildDict) {
1270                  if (pChildDict->GetObjNum() != dwParentObjNum) {
1271                      LoadField(pChildDict, nLevel + 1);
1272                  }
1273              }
1274          }
1275      } else {
1276          AddTerminalField(pFieldDict);
1277      }
1278  }
HasXFAForm() const1279  FX_BOOL CPDF_InterForm::HasXFAForm() const
1280  {
1281      return m_pFormDict && m_pFormDict->GetArray(FX_BSTRC("XFA")) != NULL;
1282  }
FixPageFields(const CPDF_Page * pPage)1283  void CPDF_InterForm::FixPageFields(const CPDF_Page* pPage)
1284  {
1285      ASSERT(pPage != NULL);
1286      CPDF_Dictionary* pPageDict = pPage->m_pFormDict;
1287      if (pPageDict == NULL) {
1288          return;
1289      }
1290      CPDF_Array* pAnnots = pPageDict->GetArray(FX_BSTRC("Annots"));
1291      if (pAnnots == NULL) {
1292          return;
1293      }
1294      int iAnnotCount = pAnnots->GetCount();
1295      for (int i = 0; i < iAnnotCount; i++) {
1296          CPDF_Dictionary* pAnnot = pAnnots->GetDict(i);
1297          if (pAnnot != NULL && pAnnot->GetString(FX_BSTRC("Subtype")) == "Widget") {
1298              LoadField(pAnnot);
1299          }
1300      }
1301  }
AddTerminalField(const CPDF_Dictionary * pFieldDict)1302  CPDF_FormField* CPDF_InterForm::AddTerminalField(const CPDF_Dictionary* pFieldDict)
1303  {
1304      if (!pFieldDict->KeyExist(FX_BSTRC("T"))) {
1305          return NULL;
1306      }
1307      CPDF_Dictionary* pDict = (CPDF_Dictionary*)pFieldDict;
1308      CFX_WideString csWName = GetFullName(pDict);
1309      if (csWName.IsEmpty()) {
1310          return NULL;
1311      }
1312      CPDF_FormField* pField = NULL;
1313      pField = m_pFieldTree->GetField(csWName);
1314      if (pField == NULL) {
1315          CPDF_Dictionary *pParent = (CPDF_Dictionary*)pFieldDict;
1316          if (!pFieldDict->KeyExist(FX_BSTR("T")) &&
1317                  pFieldDict->GetString(FX_BSTRC("Subtype")) == FX_BSTRC("Widget")) {
1318              pParent = pFieldDict->GetDict(FX_BSTRC("Parent"));
1319              if (!pParent) {
1320                  pParent = (CPDF_Dictionary*)pFieldDict;
1321              }
1322          }
1323          if (pParent && pParent != pFieldDict && !pParent->KeyExist(FX_BSTRC("FT"))) {
1324              if (pFieldDict->KeyExist(FX_BSTRC("FT"))) {
1325                  CPDF_Object *pFTValue = pFieldDict->GetElementValue(FX_BSTRC("FT"));
1326                  if (pFTValue) {
1327                      pParent->SetAt(FX_BSTRC("FT"), pFTValue->Clone());
1328                  }
1329              }
1330              if (pFieldDict->KeyExist(FX_BSTRC("Ff"))) {
1331                  CPDF_Object *pFfValue = pFieldDict->GetElementValue(FX_BSTRC("Ff"));
1332                  if (pFfValue) {
1333                      pParent->SetAt(FX_BSTRC("Ff"), pFfValue->Clone());
1334                  }
1335              }
1336          }
1337          pField = FX_NEW CPDF_FormField(this, pParent);
1338          CPDF_Object* pTObj = pDict->GetElement("T");
1339          if (pTObj && pTObj->GetType() == PDFOBJ_REFERENCE) {
1340              CPDF_Object* pClone = pTObj->Clone(TRUE);
1341              if (pClone) {
1342                  pDict->SetAt("T", pClone);
1343              } else {
1344                  pDict->SetAtName("T", "");
1345              }
1346          }
1347          m_pFieldTree->SetField(csWName, pField);
1348      }
1349      CPDF_Array* pKids = pFieldDict->GetArray("Kids");
1350      if (pKids == NULL) {
1351          if (pFieldDict->GetString("Subtype") == "Widget") {
1352              AddControl(pField, pFieldDict);
1353          }
1354      } else {
1355          for (FX_DWORD i = 0; i < pKids->GetCount(); i ++) {
1356              CPDF_Dictionary* pKid = pKids->GetDict(i);
1357              if (pKid == NULL) {
1358                  continue;
1359              }
1360              if (pKid->GetString("Subtype") != "Widget") {
1361                  continue;
1362              }
1363              AddControl(pField, pKid);
1364          }
1365      }
1366      return pField;
1367  }
AddControl(const CPDF_FormField * pField,const CPDF_Dictionary * pWidgetDict)1368  CPDF_FormControl* CPDF_InterForm::AddControl(const CPDF_FormField* pField, const CPDF_Dictionary* pWidgetDict)
1369  {
1370      void *rValue = NULL;
1371      if (m_ControlMap.Lookup((CPDF_Dictionary*)pWidgetDict, rValue)) {
1372          return (CPDF_FormControl*)rValue;
1373      }
1374      CPDF_FormControl* pControl = FX_NEW CPDF_FormControl((CPDF_FormField*)pField, (CPDF_Dictionary*)pWidgetDict);
1375      if (pControl == NULL) {
1376          return NULL;
1377      }
1378      m_ControlMap.SetAt((CPDF_Dictionary*)pWidgetDict, pControl);
1379      ((CPDF_FormField*)pField)->m_ControlList.Add(pControl);
1380      return pControl;
1381  }
CheckRequiredFields(const CFX_PtrArray * fields,FX_BOOL bIncludeOrExclude) const1382  CPDF_FormField* CPDF_InterForm::CheckRequiredFields(const CFX_PtrArray *fields, FX_BOOL bIncludeOrExclude) const
1383  {
1384      int nCount = m_pFieldTree->m_Root.CountFields();
1385      for (int i = 0; i < nCount; i++) {
1386          CPDF_FormField* pField = m_pFieldTree->m_Root.GetField(i);
1387          if (pField == NULL) {
1388              continue;
1389          }
1390          FX_INT32 iType = pField->GetType();
1391          if (iType == CPDF_FormField::PushButton || iType == CPDF_FormField::CheckBox || iType == CPDF_FormField::ListBox) {
1392              continue;
1393          }
1394          FX_DWORD dwFlags = pField->GetFieldFlags();
1395          if (dwFlags & 0x04) {
1396              continue;
1397          }
1398          FX_BOOL bFind = TRUE;
1399          if (fields != NULL) {
1400              bFind = fields->Find(pField, 0) >= 0;
1401          }
1402          if ((bIncludeOrExclude && bFind) || (!bIncludeOrExclude && !bFind)) {
1403              CPDF_Dictionary *pFieldDict = pField->m_pDict;
1404              if ((dwFlags & 0x02) != 0 && pFieldDict->GetString("V").IsEmpty()) {
1405                  return pField;
1406              }
1407          }
1408      }
1409      return NULL;
1410  }
ExportToFDF(FX_WSTR pdf_path,FX_BOOL bSimpleFileSpec) const1411  CFDF_Document* CPDF_InterForm::ExportToFDF(FX_WSTR pdf_path, FX_BOOL bSimpleFileSpec) const
1412  {
1413      CFX_PtrArray fields;
1414      int nCount = m_pFieldTree->m_Root.CountFields();
1415      for (int i = 0; i < nCount; i ++) {
1416          CPDF_FormField* pField = m_pFieldTree->m_Root.GetField(i);
1417          fields.Add(pField);
1418      }
1419      return ExportToFDF(pdf_path, fields, TRUE, bSimpleFileSpec);
1420  }
1421  CFX_WideString FILESPEC_EncodeFileName(FX_WSTR filepath);
ExportToFDF(FX_WSTR pdf_path,CFX_PtrArray & fields,FX_BOOL bIncludeOrExclude,FX_BOOL bSimpleFileSpec) const1422  CFDF_Document* CPDF_InterForm::ExportToFDF(FX_WSTR pdf_path, CFX_PtrArray& fields, FX_BOOL bIncludeOrExclude, FX_BOOL bSimpleFileSpec) const
1423  {
1424      CFDF_Document* pDoc = CFDF_Document::CreateNewDoc();
1425      if (pDoc == NULL) {
1426          return NULL;
1427      }
1428      CPDF_Dictionary* pMainDict = pDoc->GetRoot()->GetDict("FDF");
1429      if (!pdf_path.IsEmpty()) {
1430          if (bSimpleFileSpec) {
1431              CFX_WideString wsFilePath = FILESPEC_EncodeFileName(pdf_path);
1432              pMainDict->SetAtString(FX_BSTRC("F"), CFX_ByteString::FromUnicode(wsFilePath));
1433              pMainDict->SetAtString(FX_BSTRC("UF"), PDF_EncodeText(wsFilePath));
1434          } else {
1435              CPDF_FileSpec filespec;
1436              filespec.SetFileName(pdf_path);
1437              pMainDict->SetAt("F", (CPDF_Object*)filespec);
1438          }
1439      }
1440      CPDF_Array* pFields = CPDF_Array::Create();
1441      if (pFields == NULL) {
1442          return NULL;
1443      }
1444      pMainDict->SetAt("Fields", pFields);
1445      int nCount = m_pFieldTree->m_Root.CountFields();
1446      for (int i = 0; i < nCount; i ++) {
1447          CPDF_FormField* pField = m_pFieldTree->m_Root.GetField(i);
1448          if (pField == NULL || pField->GetType() == CPDF_FormField::PushButton) {
1449              continue;
1450          }
1451          FX_DWORD dwFlags = pField->GetFieldFlags();
1452          if (dwFlags & 0x04) {
1453              continue;
1454          }
1455          FX_BOOL bFind = fields.Find(pField, 0) >= 0;
1456          if ((bIncludeOrExclude && bFind) || (!bIncludeOrExclude && !bFind)) {
1457              if ((dwFlags & 0x02) != 0 && pField->m_pDict->GetString("V").IsEmpty()) {
1458                  continue;
1459              }
1460              CFX_WideString fullname = GetFullName(pField->GetFieldDict());
1461              CPDF_Dictionary* pFieldDict = CPDF_Dictionary::Create();
1462              if (pFieldDict == NULL) {
1463                  return NULL;
1464              }
1465              CPDF_String* pString = CPDF_String::Create(fullname);
1466              if (pString == NULL) {
1467                  pFieldDict->Release();
1468                  return NULL;
1469              }
1470              pFieldDict->SetAt("T", pString);
1471              if (pField->GetType() == CPDF_FormField::CheckBox || pField->GetType() == CPDF_FormField::RadioButton) {
1472                  CFX_WideString csExport = pField->GetCheckValue(FALSE);
1473                  CFX_ByteString csBExport = PDF_EncodeText(csExport);
1474                  CPDF_Object* pOpt = FPDF_GetFieldAttr(pField->m_pDict, "Opt");
1475                  if (pOpt == NULL) {
1476                      pFieldDict->SetAtName("V", csBExport);
1477                  } else {
1478                      pFieldDict->SetAtString("V", csBExport);
1479                  }
1480              } else {
1481                  CPDF_Object* pV = FPDF_GetFieldAttr(pField->m_pDict, "V");
1482                  if (pV != NULL) {
1483                      pFieldDict->SetAt("V", pV->Clone(TRUE));
1484                  }
1485              }
1486              pFields->Add(pFieldDict);
1487          }
1488      }
1489      return pDoc;
1490  }
1491  const struct _SupportFieldEncoding {
1492      FX_LPCSTR m_name;
1493      FX_INT32 m_codePage;
1494  } g_fieldEncoding[] = {
1495      "BigFive", 950,
1496      "GBK", 936,
1497      "Shift-JIS", 932,
1498      "UHC", 949,
1499  };
FPDFDOC_FDF_GetFieldValue(CPDF_Dictionary * pFieldDict,CFX_WideString & csValue,CFX_ByteString & bsEncoding)1500  static void FPDFDOC_FDF_GetFieldValue(CPDF_Dictionary *pFieldDict, CFX_WideString &csValue, CFX_ByteString &bsEncoding)
1501  {
1502      ASSERT(pFieldDict != NULL);
1503      CFX_ByteString csBValue = pFieldDict->GetString("V");
1504      FX_INT32 iCount = sizeof(g_fieldEncoding) / sizeof(g_fieldEncoding[0]);
1505      FX_INT32 i = 0;
1506      for (; i < iCount; ++i)
1507          if (bsEncoding == g_fieldEncoding[i].m_name) {
1508              break;
1509          }
1510      if (i < iCount) {
1511          CFX_CharMap *pCharMap = CFX_CharMap::GetDefaultMapper(g_fieldEncoding[i].m_codePage);
1512          FXSYS_assert(pCharMap != NULL);
1513          csValue.ConvertFrom(csBValue, pCharMap);
1514          return;
1515      }
1516      CFX_ByteString csTemp = csBValue.Left(2);
1517      if (csTemp == "\xFF\xFE" || csTemp == "\xFE\xFF") {
1518          csValue = PDF_DecodeText(csBValue);
1519      } else {
1520          csValue = CFX_WideString::FromLocal(csBValue);
1521      }
1522  }
FDF_ImportField(CPDF_Dictionary * pFieldDict,const CFX_WideString & parent_name,FX_BOOL bNotify,int nLevel)1523  void CPDF_InterForm::FDF_ImportField(CPDF_Dictionary* pFieldDict, const CFX_WideString& parent_name, FX_BOOL bNotify, int nLevel)
1524  {
1525      CFX_WideString name;
1526      if (!parent_name.IsEmpty()) {
1527          name = parent_name + L".";
1528      }
1529      name += pFieldDict->GetUnicodeText("T");
1530      CPDF_Array* pKids = pFieldDict->GetArray("Kids");
1531      if (pKids) {
1532          for (FX_DWORD i = 0; i < pKids->GetCount(); i ++) {
1533              CPDF_Dictionary* pKid = pKids->GetDict(i);
1534              if (pKid == NULL) {
1535                  continue;
1536              }
1537              if (nLevel <= nMaxRecursion) {
1538                  FDF_ImportField(pKid, name, bNotify, nLevel + 1);
1539              }
1540          }
1541          return;
1542      }
1543      if (!pFieldDict->KeyExist("V")) {
1544          return;
1545      }
1546      CPDF_FormField* pField = m_pFieldTree->GetField(name);
1547      if (pField == NULL) {
1548          return;
1549      }
1550      CFX_WideString csWValue;
1551      FPDFDOC_FDF_GetFieldValue(pFieldDict, csWValue, m_bsEncoding);
1552      int iType = pField->GetFieldType();
1553      if (bNotify && m_pFormNotify != NULL) {
1554          int iRet = 0;
1555          if (iType == FIELDTYPE_LISTBOX) {
1556              iRet = m_pFormNotify->BeforeSelectionChange(pField, csWValue);
1557          } else if (iType == FIELDTYPE_COMBOBOX || iType == FIELDTYPE_TEXTFIELD) {
1558              iRet = m_pFormNotify->BeforeValueChange(pField, csWValue);
1559          }
1560          if (iRet < 0) {
1561              return;
1562          }
1563      }
1564      CFX_ByteArray statusArray;
1565      if (iType == FIELDTYPE_CHECKBOX || iType == FIELDTYPE_RADIOBUTTON) {
1566          SaveCheckedFieldStatus(pField, statusArray);
1567      }
1568      pField->SetValue(csWValue);
1569      CPDF_FormField::Type eType = pField->GetType();
1570      if ((eType == CPDF_FormField::ListBox || eType == CPDF_FormField::ComboBox) && pFieldDict->KeyExist("Opt")) {
1571          pField->m_pDict->SetAt("Opt", pFieldDict->GetElementValue("Opt")->Clone(TRUE));
1572      }
1573      if (bNotify && m_pFormNotify != NULL) {
1574          if (iType == FIELDTYPE_CHECKBOX || iType == FIELDTYPE_RADIOBUTTON) {
1575              m_pFormNotify->AfterCheckedStatusChange(pField, statusArray);
1576          } else if (iType == FIELDTYPE_LISTBOX) {
1577              m_pFormNotify->AfterSelectionChange(pField);
1578          } else if (iType == FIELDTYPE_COMBOBOX || iType == FIELDTYPE_TEXTFIELD) {
1579              m_pFormNotify->AfterValueChange(pField);
1580          }
1581      }
1582      if (CPDF_InterForm::m_bUpdateAP) {
1583          pField->UpdateAP(NULL);
1584      }
1585  }
ImportFromFDF(const CFDF_Document * pFDF,FX_BOOL bNotify)1586  FX_BOOL CPDF_InterForm::ImportFromFDF(const CFDF_Document* pFDF, FX_BOOL bNotify)
1587  {
1588      if (pFDF == NULL) {
1589          return FALSE;
1590      }
1591      CPDF_Dictionary* pMainDict = pFDF->GetRoot()->GetDict("FDF");
1592      if (pMainDict == NULL) {
1593          return FALSE;
1594      }
1595      CPDF_Array* pFields = pMainDict->GetArray("Fields");
1596      if (pFields == NULL) {
1597          return FALSE;
1598      }
1599      m_bsEncoding = pMainDict->GetString(FX_BSTRC("Encoding"));
1600      if (bNotify && m_pFormNotify != NULL) {
1601          int iRet = m_pFormNotify->BeforeFormImportData(this);
1602          if (iRet < 0) {
1603              return FALSE;
1604          }
1605      }
1606      for (FX_DWORD i = 0; i < pFields->GetCount(); i ++) {
1607          CPDF_Dictionary* pField = pFields->GetDict(i);
1608          if (pField == NULL) {
1609              continue;
1610          }
1611          FDF_ImportField(pField, L"", bNotify);
1612      }
1613      if (bNotify && m_pFormNotify != NULL) {
1614          m_pFormNotify->AfterFormImportData(this);
1615      }
1616      return TRUE;
1617  }
SetFormNotify(const CPDF_FormNotify * pNotify)1618  void CPDF_InterForm::SetFormNotify(const CPDF_FormNotify* pNotify)
1619  {
1620      m_pFormNotify = (CPDF_FormNotify*)pNotify;
1621  }
GetPageWithWidget(int iCurPage,FX_BOOL bNext)1622  int CPDF_InterForm::GetPageWithWidget(int iCurPage, FX_BOOL bNext)
1623  {
1624      if (iCurPage < 0) {
1625          return -1;
1626      }
1627      int iPageCount = m_pDocument->GetPageCount();
1628      if (iCurPage >= iPageCount) {
1629          return -1;
1630      }
1631      int iNewPage = iCurPage;
1632      do {
1633          iNewPage += bNext ? 1 : -1;
1634          if (iNewPage >= iPageCount) {
1635              iNewPage = 0;
1636          }
1637          if (iNewPage < 0) {
1638              iNewPage = iPageCount - 1;
1639          }
1640          if (iNewPage == iCurPage) {
1641              break;
1642          }
1643          CPDF_Dictionary* pPageDict = m_pDocument->GetPage(iNewPage);
1644          if (pPageDict == NULL) {
1645              continue;
1646          }
1647          CPDF_Array* pAnnots = pPageDict->GetArray("Annots");
1648          if (pAnnots == NULL) {
1649              continue;
1650          }
1651          FX_DWORD dwCount = pAnnots->GetCount();
1652          for (FX_DWORD i = 0; i < dwCount; i ++) {
1653              CPDF_Object* pAnnotDict = pAnnots->GetElementValue(i);
1654              if (pAnnotDict == NULL) {
1655                  continue;
1656              }
1657              CPDF_FormControl* pControl = NULL;
1658              if (m_ControlMap.Lookup(pAnnotDict, (void*&)pControl)) {
1659                  return iNewPage;
1660              }
1661          }
1662      } while (TRUE);
1663      return -1;
1664  }
1665