isChecked property

bool get isChecked

Gets or sets a value indicating whether this PdfCheckBoxField is checked.

The default value is false.

Implementation

bool get isChecked {
  if (_helper.isLoadedField) {
    if (items != null && items!.count > 0) {
      final IPdfPrimitive? state = PdfCrossTable.dereference(
        PdfFieldItemHelper.getHelper(
          items![_helper.defaultIndex],
        ).dictionary![PdfDictionaryProperties.usageApplication],
      );
      if (state == null) {
        final IPdfPrimitive? name = PdfFieldHelper.getValue(
          _helper.dictionary!,
          _helper.crossTable,
          PdfDictionaryProperties.v,
          false,
        );
        if (name != null && name is PdfName) {
          _checked =
              name.name ==
              _helper.getItemValue(
                PdfFieldItemHelper.getHelper(
                  items![_helper.defaultIndex],
                ).dictionary!,
                _helper.crossTable,
              );
        }
      } else if (state is PdfName) {
        _checked = state.name != PdfDictionaryProperties.off;
      }
      return _checked;
    }
    if (_helper.dictionary!.containsKey(PdfDictionaryProperties.v)) {
      if (_helper.dictionary![PdfDictionaryProperties.v]! is PdfName) {
        final PdfName chk =
            _helper.dictionary![PdfDictionaryProperties.v]! as PdfName;
        _checked = chk.name != 'Off';
      } else if (_helper.dictionary![PdfDictionaryProperties.v]!
          is PdfString) {
        final PdfString chk =
            _helper.dictionary![PdfDictionaryProperties.v]! as PdfString;
        _checked = chk.value != 'Off';
      }
    }
  }
  return _checked;
}

set isChecked (bool value)

Implementation

set isChecked(bool value) {
  if (_helper.isLoadedField) {
    if (_helper.dictionary!.containsKey(PdfDictionaryProperties.v)) {
      if (_helper.dictionary![PdfDictionaryProperties.v]! is PdfName) {
        final PdfName chk =
            _helper.dictionary![PdfDictionaryProperties.v]! as PdfName;
        if (chk.name!.isNotEmpty) {
          _checked = chk.name != 'Off';
        } else {
          _helper.dictionary!.remove(PdfDictionaryProperties.v);
        }
      } else if (_helper.dictionary![PdfDictionaryProperties.v]!
          is PdfString) {
        final PdfString chk =
            _helper.dictionary![PdfDictionaryProperties.v]! as PdfString;
        if (chk.value!.isNotEmpty) {
          _checked = chk.value != 'Off';
        } else {
          _helper.dictionary!.remove(PdfDictionaryProperties.v);
        }
      }
    }
    PdfFormHelper.getHelper(form!).setAppearanceDictionary = true;
    if (PdfFormHelper.getHelper(super.form!).needAppearances == false) {
      _helper.changed = true;
    }
  }
  if (_checked != value) {
    _checked = value;
    String? val;
    if (_helper.isLoadedField) {
      val = _helper._enableCheckBox(value);
      val = _helper._enableItems(value, val);
    }
    if (_checked) {
      _helper.dictionary!.setName(
        PdfName(PdfDictionaryProperties.v),
        val ?? PdfDictionaryProperties.yes,
      );
      _helper.dictionary!.setProperty(
        PdfDictionaryProperties.usageApplication,
        PdfName(val ?? PdfDictionaryProperties.yes),
      );
    } else {
      _helper.dictionary!.remove(PdfDictionaryProperties.v);
      if (_helper.dictionary!.containsKey(
        PdfDictionaryProperties.usageApplication,
      )) {
        _helper.dictionary!.setName(
          PdfName(PdfDictionaryProperties.usageApplication),
          PdfDictionaryProperties.off,
        );
      }
    }
  }
}