C++ CPDF_FormField::GetFieldType方法代码示例

DLLEXPORT int STDCALL FPDPage_HasFormFieldAtPoint(FPDF_FORMHANDLE hHandle, FPDF_PAGE page,double page_x, double page_y)
{
	if(!page || !hHandle)
		return -1;
	CPDF_Page * pPage = (CPDF_Page*) page;

	CPDF_InterForm * pInterForm = NULL;
	pInterForm = new CPDF_InterForm(pPage->m_pDocument,FALSE);
	if (!pInterForm)
		return -1;
	CPDF_FormControl* pFormCtrl = pInterForm->GetControlAtPoint(pPage, (FX_FLOAT)page_x, (FX_FLOAT)page_y);
	if(!pFormCtrl)
	{
		delete pInterForm;
		return -1;
	}
	CPDF_FormField* pFormField = pFormCtrl->GetField();
	if(!pFormField)
	{
		delete pInterForm;
		return -1;
	}
	
	int nType = pFormField->GetFieldType();
	delete pInterForm;
	return nType;
}

bool CPDF_InterForm::ValidateFieldName(
    CFX_WideString& csNewFieldName,
    int iType,
    const CPDF_FormField* pExcludedField,
    const CPDF_FormControl* pExcludedControl) const {
  if (csNewFieldName.IsEmpty())
    return false;

  int iPos = 0;
  int iLength = csNewFieldName.GetLength();
  CFX_WideString csSub;
  while (true) {
    while (iPos < iLength &&
           (csNewFieldName[iPos] == L'.' || csNewFieldName[iPos] == L' ')) {
      iPos++;
    }
    if (iPos < iLength && !csSub.IsEmpty())
      csSub += L'.';
    while (iPos < iLength && csNewFieldName[iPos] != L'.')
      csSub += csNewFieldName[iPos++];
    for (int i = csSub.GetLength() - 1; i > -1; i--) {
      if (csSub[i] != L' ' && csSub[i] != L'.')
        break;

      csSub.SetAt(i, L'\0');
    }
    size_t dwCount = m_pFieldTree->m_Root.CountFields();
    for (size_t m = 0; m < dwCount; ++m) {
      CPDF_FormField* pField = m_pFieldTree->m_Root.GetFieldAtIndex(m);
      if (!pField)
        continue;
      if (pField == pExcludedField) {
        if (!pExcludedControl || pField->CountControls() < 2)
          continue;
      }
      CFX_WideString csFullName = pField->GetFullName();
      int iRet = CompareFieldName(csSub, csFullName);
      if (iRet == 1) {
        if (pField->GetFieldType() != iType)
          return false;
      } else if (iRet == 2 && csSub == csNewFieldName) {
        if (csFullName[iPos] == L'.')
          return false;
      } else if (iRet == 3 && csSub == csNewFieldName) {
        if (csNewFieldName[csFullName.GetLength()] == L'.')
          return false;
      }
    }
    if (iPos >= iLength)
      break;
  }
  if (csSub.IsEmpty())
    return false;

  csNewFieldName = csSub;
  return true;
}

void CPDF_InterForm::FDF_ImportField(CPDF_Dictionary* pFieldDict,
                                     const CFX_WideString& parent_name,
                                     FX_BOOL bNotify,
                                     int nLevel) {
  CFX_WideString name;
  if (!parent_name.IsEmpty())
    name = parent_name + L".";

  name += pFieldDict->GetUnicodeTextBy("T");
  CPDF_Array* pKids = pFieldDict->GetArrayBy("Kids");
  if (pKids) {
    for (size_t i = 0; i < pKids->GetCount(); i++) {
      CPDF_Dictionary* pKid = pKids->GetDictAt(i);
      if (!pKid)
        continue;
      if (nLevel <= nMaxRecursion)
        FDF_ImportField(pKid, name, bNotify, nLevel + 1);
    }
    return;
  }
  if (!pFieldDict->KeyExist("V"))
    return;

  CPDF_FormField* pField = m_pFieldTree->GetField(name);
  if (!pField)
    return;

  CFX_WideString csWValue = GetFieldValue(*pFieldDict, m_bsEncoding);
  int iType = pField->GetFieldType();
  if (bNotify && m_pFormNotify) {
    int iRet = 0;
    if (iType == FIELDTYPE_LISTBOX)
      iRet = m_pFormNotify->BeforeSelectionChange(pField, csWValue);
    else if (iType == FIELDTYPE_COMBOBOX || iType == FIELDTYPE_TEXTFIELD)
      iRet = m_pFormNotify->BeforeValueChange(pField, csWValue);

    if (iRet < 0)
      return;
  }

  pField->SetValue(csWValue);
  CPDF_FormField::Type eType = pField->GetType();
  if ((eType == CPDF_FormField::ListBox || eType == CPDF_FormField::ComboBox) &&
      pFieldDict->KeyExist("Opt")) {
    pField->m_pDict->SetAt(
        "Opt", pFieldDict->GetDirectObjectBy("Opt")->CloneDirectObject());
  }

  if (bNotify && m_pFormNotify) {
    if (iType == FIELDTYPE_CHECKBOX || iType == FIELDTYPE_RADIOBUTTON)
      m_pFormNotify->AfterCheckedStatusChange(pField);
    else if (iType == FIELDTYPE_LISTBOX)
      m_pFormNotify->AfterSelectionChange(pField);
    else if (iType == FIELDTYPE_COMBOBOX || iType == FIELDTYPE_TEXTFIELD)
      m_pFormNotify->AfterValueChange(pField);
  }
}

FX_BOOL CPDF_InterForm::ValidateFieldName(const CPDF_FormControl* pControl,
                                          CFX_WideString& csNewFieldName) {
  if (!pControl || csNewFieldName.IsEmpty())
    return FALSE;

  CPDF_FormField* pField = pControl->GetField();
  return ValidateFieldName(csNewFieldName, pField->GetFieldType(), pField,
                           pControl);
}

void CPDFSDK_InterForm::OnCalculate(CPDF_FormField* pFormField) {
  CPDFSDK_Environment* pEnv = m_pDocument->GetEnv();
  ASSERT(pEnv);
  if (!pEnv->IsJSInitiated())
    return;

  if (m_bBusy)
    return;

  m_bBusy = TRUE;

  if (!IsCalculateEnabled()) {
    m_bBusy = FALSE;
    return;
  }

  IJS_Runtime* pRuntime = m_pDocument->GetJsRuntime();
  pRuntime->SetReaderDocument(m_pDocument);

  int nSize = m_pInterForm->CountFieldsInCalculationOrder();
  for (int i = 0; i < nSize; i++) {
    CPDF_FormField* pField = m_pInterForm->GetFieldInCalculationOrder(i);
    if (!pField)
      continue;

    int nType = pField->GetFieldType();
    if (nType != FIELDTYPE_COMBOBOX && nType != FIELDTYPE_TEXTFIELD)
      continue;

    CPDF_AAction aAction = pField->GetAdditionalAction();
    if (!aAction.GetDict() || !aAction.ActionExist(CPDF_AAction::Calculate))
      continue;

    CPDF_Action action = aAction.GetAction(CPDF_AAction::Calculate);
    if (!action.GetDict())
      continue;

    CFX_WideString csJS = action.GetJavaScript();
    if (csJS.IsEmpty())
      continue;

    IJS_Context* pContext = pRuntime->NewContext();
    CFX_WideString sOldValue = pField->GetValue();
    CFX_WideString sValue = sOldValue;
    FX_BOOL bRC = TRUE;
    pContext->OnField_Calculate(pFormField, pField, sValue, bRC);

    CFX_WideString sInfo;
    FX_BOOL bRet = pContext->RunScript(csJS, &sInfo);
    pRuntime->ReleaseContext(pContext);

    if (bRet && bRC && sValue.Compare(sOldValue) != 0)
      pField->SetValue(sValue, TRUE);
  }

  m_bBusy = FALSE;
}

FX_BOOL CPDF_InterForm::ValidateFieldName(const CPDF_FormControl* pControl,
                                          CFX_WideString& csNewFieldName) {
  if (pControl == NULL || csNewFieldName.IsEmpty()) {
    return FALSE;
  }
  CPDF_FormField* pField = ((CPDF_FormControl*)pControl)->GetField();
  return ValidateFieldName(csNewFieldName, pField->GetFieldType(), pField,
                           pControl);
}

void CPDF_InterForm::FDF_ImportField(CPDF_Dictionary* pFieldDict,
                                     const CFX_WideString& parent_name,
                                     FX_BOOL bNotify,
                                     int nLevel) {
  CFX_WideString name;
  if (!parent_name.IsEmpty()) {
    name = parent_name + L".";
  }
  name += pFieldDict->GetUnicodeText("T");
  CPDF_Array* pKids = pFieldDict->GetArray("Kids");
  if (pKids) {
    for (FX_DWORD i = 0; i < pKids->GetCount(); i++) {
      CPDF_Dictionary* pKid = pKids->GetDict(i);
      if (pKid == NULL) {
        continue;
      }
      if (nLevel <= nMaxRecursion) {
        FDF_ImportField(pKid, name, bNotify, nLevel + 1);
      }
    }
    return;
  }
  if (!pFieldDict->KeyExist("V")) {
    return;
  }
  CPDF_FormField* pField = m_pFieldTree->GetField(name);
  if (pField == NULL) {
    return;
  }
  CFX_WideString csWValue;
  FPDFDOC_FDF_GetFieldValue(pFieldDict, csWValue, m_bsEncoding);
  int iType = pField->GetFieldType();
  if (bNotify && m_pFormNotify != NULL) {
    int iRet = 0;
    if (iType == FIELDTYPE_LISTBOX) {
      iRet = m_pFormNotify->BeforeSelectionChange(pField, csWValue);
    } else if (iType == FIELDTYPE_COMBOBOX || iType == FIELDTYPE_TEXTFIELD) {
      iRet = m_pFormNotify->BeforeValueChange(pField, csWValue);
    }
    if (iRet < 0) {
      return;
    }
  }
  CFX_ByteArray statusArray;
  if (iType == FIELDTYPE_CHECKBOX || iType == FIELDTYPE_RADIOBUTTON) {
    SaveCheckedFieldStatus(pField, statusArray);
  }
  pField->SetValue(csWValue);
  CPDF_FormField::Type eType = pField->GetType();
  if ((eType == CPDF_FormField::ListBox || eType == CPDF_FormField::ComboBox) &&
      pFieldDict->KeyExist("Opt")) {
    pField->m_pDict->SetAt("Opt",
                           pFieldDict->GetElementValue("Opt")->Clone(TRUE));
  }
  if (bNotify && m_pFormNotify != NULL) {
    if (iType == FIELDTYPE_CHECKBOX || iType == FIELDTYPE_RADIOBUTTON) {
      m_pFormNotify->AfterCheckedStatusChange(pField, statusArray);
    } else if (iType == FIELDTYPE_LISTBOX) {
      m_pFormNotify->AfterSelectionChange(pField);
    } else if (iType == FIELDTYPE_COMBOBOX || iType == FIELDTYPE_TEXTFIELD) {
      m_pFormNotify->AfterValueChange(pField);
    }
  }
  if (CPDF_InterForm::m_bUpdateAP) {
    pField->UpdateAP(NULL);
  }
}

DLLEXPORT int STDCALL FPDFPage_HasFormFieldAtPoint(FPDF_FORMHANDLE hHandle,
                                                   FPDF_PAGE page,
                                                   double page_x,
                                                   double page_y) {
  if (!hHandle)
    return -1;
  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
  if (pPage) {
    CPDF_InterForm interform(pPage->m_pDocument, FALSE);
    CPDF_FormControl* pFormCtrl =
        interform.GetControlAtPoint(pPage, static_cast<FX_FLOAT>(page_x),
                                    static_cast<FX_FLOAT>(page_y), nullptr);
    if (!pFormCtrl)
      return -1;
    CPDF_FormField* pFormField = pFormCtrl->GetField();
    return pFormField ? pFormField->GetFieldType() : -1;
  }

#ifdef PDF_ENABLE_XFA
  CPDFXFA_Page* pXFAPage = UnderlyingFromFPDFPage(page);
  if (!pXFAPage)
    return -1;

  IXFA_PageView* pPageView = pXFAPage->GetXFAPageView();
  if (!pPageView)
    return -1;

  IXFA_DocView* pDocView = pPageView->GetDocView();
  if (!pDocView)
    return -1;

  IXFA_WidgetHandler* pWidgetHandler = pDocView->GetWidgetHandler();
  if (!pWidgetHandler)
    return -1;

  std::unique_ptr<IXFA_WidgetIterator, ReleaseDeleter<IXFA_WidgetIterator>>
      pWidgetIterator(pPageView->CreateWidgetIterator(
          XFA_TRAVERSEWAY_Form,
          XFA_WIDGETFILTER_Viewable | XFA_WIDGETFILTER_AllType));
  if (!pWidgetIterator)
    return -1;

  IXFA_Widget* pXFAAnnot = pWidgetIterator->MoveToNext();
  while (pXFAAnnot) {
    CFX_RectF rcBBox;
    pWidgetHandler->GetBBox(pXFAAnnot, rcBBox, 0);
    CFX_FloatRect rcWidget(rcBBox.left, rcBBox.top, rcBBox.left + rcBBox.width,
                           rcBBox.top + rcBBox.height);
    rcWidget.left -= 1.0f;
    rcWidget.right += 1.0f;
    rcWidget.bottom -= 1.0f;
    rcWidget.top += 1.0f;

    if (rcWidget.Contains(static_cast<FX_FLOAT>(page_x),
                          static_cast<FX_FLOAT>(page_y))) {
      return FPDF_FORMFIELD_XFA;
    }
    pXFAAnnot = pWidgetIterator->MoveToNext();
  }
#endif  // PDF_ENABLE_XFA
  return -1;
}