kmpdfkit_demo/lib/widgets/viewer/pdfdisplaysettings/cpdf_display_mode_widget.dart

///
///  Copyright © 2014-2023 PDF Technologies, Inc. All Rights Reserved.
///
///  THIS SOURCE CODE AND ANY ACCOMPANYING DOCUMENTATION ARE PROTECTED BY INTERNATIONAL COPYRIGHT LAW
///  AND MAY NOT BE RESOLD OR REDISTRIBUTED. USAGE IS BOUND TO THE ComPDFKit LICENSE AGREEMENT.
///  UNAUTHORIZED REPRODUCTION OR DISTRIBUTION IS SUBJECT TO CIVIL AND CRIMINAL PENALTIES.
///  This notice may not be removed from this file.

import 'package:compdfkit_flutter/core/cpdf_view_ctrl.dart';
import 'package:flutter/material.dart';

import '../../../common/util/Strings.dart';
import '../../common/radio/cpdf_radio_group_data.dart';
import '../../common/radio/cpdf_radio_list_group.dart';

final displayModes = [
  CPDFRadioGroupData(
      0, 'assets/images/ic_vertical_scrolling.png', Strings.VerticalScrolling),
  CPDFRadioGroupData(1, 'assets/images/ic_horizontal_scrolling.png',
      Strings.HorizontalScrolling)
];

class CPDFDisplayModeWidget extends StatefulWidget {
  final CPDFViewCtrl ctrl;

  const CPDFDisplayModeWidget({Key? key, required this.ctrl}) : super(key: key);

  @override
  State<CPDFDisplayModeWidget> createState() => _CPDFDisplayModeWidgetState();
}

class _CPDFDisplayModeWidgetState extends State<CPDFDisplayModeWidget> {
  bool _isVerticalMode = true;

  @override
  void initState() {
    super.initState();
    _initDisplaySettings();
  }

  void _initDisplaySettings() async {
    CPDFViewCtrl ctrl = widget.ctrl;
    bool verticalMode = await ctrl.isVerticalMode();
    setState(() {
      _isVerticalMode = verticalMode;
    });
  }

  @override
  Widget build(BuildContext context) {
    return Column(
      children: [
        _title(context, Strings.DisplayMode),
        CPDFRadioListGroup(
          iconColor: Theme.of(context).brightness == Brightness.dark
              ? Colors.white
              : null,
          checkId: _isVerticalMode ? 0 : 1,
          list: displayModes,
          onChecked: (checkId) {
            setState(() {
              _isVerticalMode = checkId == 0;
              widget.ctrl.setVerticalMode(_isVerticalMode);
            });
          },
        )
      ],
    );
  }

  Widget _title(BuildContext context, String title) {
    return Container(
      alignment: Alignment.centerLeft,
      height: 28,
      padding: const EdgeInsets.symmetric(horizontal: 16),
      color: Theme.of(context).colorScheme.secondaryContainer,
      child: Text(
        title,
        style: Theme.of(context).textTheme.labelMedium,
      ),
    );
  }
}