decodeDataTableThemeData static method

DataTableThemeData? decodeDataTableThemeData(dynamic value, { bool validate = true, })

Decodes the given value to an DataTableThemeData. This expects the given value to be of the following structure:

{
  "checkboxHorizontalMargin": "<double>",
  "columnSpacing": "<double>",
  "dataRowColor": "<WidgetStateProperty<Color>>",
  "dataRowCursor": "<WidgetStateProperty<MouseCursor>",
  "dataRowMaxHeight": "<double>",
  "dataRowMinHeight": "<double>",
  "dataTextStyle": "<TextStyle,
  "decoration": "<BoxDecoration>",
  "dividerThickness": "<double>",
  "headingCellCursor": "<WidgetStateProperty<MouseCursor>",
  "headingRowColor": "<WidgetStateProperty<Color>>",
  "headingRowHeight": "<double>",
  "headingTextStyle": "<TextStyle>",
  "horizontalMargin": "<double>"
}

This will use the properties passed through JSON to create the WidgetStateProperty of each corresponding property by using the WidgetStateProperty.all function with the value passed in.

See also:

• decodeBoxDecoration
• decodeColor
• decodeWidgetStatePropertyColor
• decodeWidgetStatePropertyMouseCursor
• decodeTextStyle

Implementation

static DataTableThemeData? decodeDataTableThemeData(
  dynamic value, {
  bool validate = true,
}) {
  DataTableThemeData? result;

  if (value is DataTableThemeData) {
    result = value;
  } else if (value != null) {
    assert(SchemaValidator.validate(
      schemaId: '$_baseSchemaUrl/data_table_theme_data',
      value: value,
      validate: validate,
    ));
    result = DataTableThemeData(
      checkboxHorizontalMargin: JsonClass.maybeParseDouble(
        value['checkboxHorizontalMargin'],
      ),
      columnSpacing: JsonClass.maybeParseDouble(
        value['columnSpacing'],
      ),
      dataRowColor: decodeWidgetStatePropertyColor(
        value['dataRowColor'],
        validate: false,
      ),
      dataRowCursor: decodeWidgetStatePropertyMouseCursor(
        value['dataRowCursor'],
        validate: false,
      ),
      // @deprecated
      // dataRowHeight:
      dataRowMaxHeight: JsonClass.maybeParseDouble(
        value['dataRowMaxHeight'],
      ),
      dataRowMinHeight: JsonClass.maybeParseDouble(
        value['dataRowMinHeight'],
      ),
      dataTextStyle: decodeTextStyle(
        value['dataTextStyle'],
        validate: false,
      ),
      decoration: decodeBoxDecoration(
        value['decoration'],
        validate: false,
      ),
      dividerThickness: JsonClass.maybeParseDouble(
        value['dividerThickness'],
      ),
      headingCellCursor: decodeWidgetStatePropertyMouseCursor(
        value['dataRowCursor'],
        validate: false,
      ),
      headingRowColor: decodeWidgetStatePropertyColor(
        value['headingRowColor'],
        validate: false,
      ),
      headingRowHeight: JsonClass.maybeParseDouble(
        value['headingRowHeight'],
      ),
      headingTextStyle: decodeTextStyle(
        value['headingTextStyle'],
        validate: false,
      ),
      horizontalMargin: JsonClass.maybeParseDouble(
        value['horizontalMargin'],
      ),
    );
  }

  return result;
}