Added filterWidgetBuilder

[Software365-info]

While trying to customize our filters with the filterWidget we ran into some problems:

• Input fields could either not be focused, or would not take any user input
• We can't access the data in the column

I have deprecated the filterWidget in PlutoColumn and instead added filterWidgetBuilder

This gives the developer the option to add custom filters widgets to the PlutoColumns. Below some examples of this being used in a client test project.

TextField(
      decoration: IFMInputDecoration().copyWith(
        hintText: "contains".tr,
        // contentPadding: const EdgeInsets.all(8),
        hintStyle: const IFMTextStyle().copyWith(
          color: grey,
          fontSize: filterFontSize,
        ),
        alignLabelWithHint: true,
      ),
      style: const IFMTextStyle().copyWith(
        color: grey,
        fontSize: filterFontSize,
      ),
      onChanged: handleOnChanged,
      focusNode: focusNode,
      controller: controller,
      enabled: enabled,
    );

The below dropdown is generated from the data available in the column itself

final list = stateManager.refRows.originalList
      .map((row) => (row.cells[field]?.value as String?) ?? "")
      .toSet()
      .toList();

DropdownMenu(
      expandedInsets: EdgeInsets.zero,
      hintText: "choose".tr,
      controller: controller,
      focusNode: focusNode,
      enabled: enabled,
      onSelected: (value) {
        handleOnChanged.call(value ?? "");
      },
      textStyle: const IFMTextStyle().copyWith(
        fontSize: filterFontSize,
      ),
      dropdownMenuEntries: [
        ...list.map(
          (e) => DropdownMenuEntry(
            value: e,
            label: e,
          ),
        ),
      ],
    );

These changes would allow each type of column to have a it's own unique filter when necessary (no working example for from-to yet)

[Software365-info]

@doonfrs any info about when and if we can get this merged? :)

[doonfrs]

Merged, Thank you @Software365-info !