kmpdfkit_demo/example/lib/cpdf_reader_widget_example_fun_test.dart

// Copyright © 2014-2024 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 'dart:math';

import 'package:compdfkit_flutter/configuration/cpdf_configuration.dart';
import 'package:compdfkit_flutter/widgets/cpdf_reader_widget.dart';
import 'package:compdfkit_flutter/widgets/cpdf_reader_widget_controller.dart';
import 'package:flutter/material.dart';

class CPDFReaderWidgetFunTestExample extends StatefulWidget {
  final String documentPath;

  const CPDFReaderWidgetFunTestExample({super.key, required this.documentPath});

  @override
  State<CPDFReaderWidgetFunTestExample> createState() =>
      _CPDFReaderWidgetFunTestExampleState();
}

class _CPDFReaderWidgetFunTestExampleState
    extends State<CPDFReaderWidgetFunTestExample> {
  CPDFReaderWidgetController? _controller;

  bool canScale = true;

  bool pageSameWidth = true;

  bool isFixedScroll = false;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        resizeToAvoidBottomInset: false,
        appBar: AppBar(
          title: const Text('CPDFReaderWidget Example'),
          leading: IconButton(
              onPressed: () {
                _save();
                Navigator.pop(context);
              },
              icon: const Icon(Icons.arrow_back)),
          actions: null == _controller
              ? []
              : [
                  PopupMenuButton(onSelected: (value) {
                    handleClick(value, _controller!);
                  }, itemBuilder: (context) {
                    return actions
                        .map((e) => PopupMenuItem(child: Text(e), value: e))
                        .toList();
                  })
                ],
        ),
        body: CPDFReaderWidget(
          document: widget.documentPath,
          configuration: CPDFConfiguration(),
          onCreated: (controller) {
            setState(() {
              _controller = controller;
            });
          },
        ));
  }

  void _save() async {
    bool saveResult = await _controller!.save();
    debugPrint('ComPDFKit-Flutter: saveResult:$saveResult');
  }

  void handleClick(String value, CPDFReaderWidgetController _controller) async {
    switch (value) {
      case 'setScale':
        _controller.setScale(1.5);
        break;
      case 'getScale':
        double scaleValue = await _controller.getScale();
        debugPrint('ComPDFKit:CPDFReaderWidget-getScale():$scaleValue');
        break;
      case 'setCanScale':
        canScale = !canScale;
        await _controller.setCanScale(canScale);
        break;
      case 'setReadBgColor':
        await _controller.setReadBackgroundColor(Colors.white);
        break;
      case 'getReadBgColor':
        Color color = await _controller.getReadBackgroundColor();
        debugPrint('ComPDFKit:getReadBgColor:${color.toString()}');
        break;
      case 'setFormHighlight':
        bool isFormFieldHighlight = await _controller.isFormFieldHighlight();
        debugPrint('ComPDFKit:isFormFieldHighlight:$isFormFieldHighlight');
        _controller.setFormFieldHighlight(!isFormFieldHighlight);
        break;
      case 'setLinkHighlight':
        bool isLinkHighlight = await _controller.isLinkHighlight();
        debugPrint('ComPDFKit:isLinkHighlight:$isLinkHighlight');
        _controller.setLinkHighlight(!isLinkHighlight);
        break;
      case 'setVerticalMode':
        bool isVerticalMode = await _controller.isVerticalMode();
        debugPrint('ComPDFKit:isVerticalMode:$isVerticalMode');
        _controller.setVerticalMode(!isVerticalMode);
        break;
      case 'setPageSpacing':
        final Random random = Random();
        int value = random.nextInt(50);
        debugPrint('ComPDFKit:setPageSpacing:$value');
        _controller.setPageSpacing(value);
        break;
      case 'setContinueMode':
        bool isContinueMode = await _controller.isContinueMode();
        debugPrint('ComPDFKit:isContinueMode:$isContinueMode');
        _controller.setContinueMode(!isContinueMode);
        break;
      case 'setDoublePageMode':
        bool isDoublePageMode = await _controller.isDoublePageMode();
        debugPrint('ComPDFKit:isDoublePageMode:$isDoublePageMode');
        _controller.setDoublePageMode(!isDoublePageMode);
        break;
      case 'setCropMode':
        bool isCropMode = await _controller.isCropMode();
        debugPrint('ComPDFKit:isCropMode:$isCropMode');
        _controller.setCropMode(!isCropMode);
        break;
      case 'setDisplayPageIndex':
        int nextPageIndex = await _controller.getCurrentPageIndex() + 1;
        _controller.setDisplayPageIndex(nextPageIndex);
        break;
      case 'getCurrentPageIndex':
        debugPrint(
            'ComPDFKit:getCurrentPageIndex:${await _controller.getCurrentPageIndex()}');
        break;
      case 'setPageSameWidth':
        pageSameWidth = !pageSameWidth;
        _controller.setPageSameWidth(pageSameWidth);
        break;
      case 'isPageInScreen':
        bool isPageInScreen = await _controller.isPageInScreen(0);
        debugPrint('ComPDFKit:first page is in screen:$isPageInScreen');
        break;
      case 'setCoverPageMode':
        bool isCoverPageMode = await _controller.isCoverPageMode();
        debugPrint('ComPDFKit:isCoverPageMode:$isCoverPageMode');
        _controller.setCoverPageMode(!isCoverPageMode);
        break;
      case 'setFixedScroll':
        isFixedScroll = !isFixedScroll;
        await _controller.setFixedScroll(isFixedScroll);
        break;
      case 'getPageSize':
        int currentPageIndex = await _controller.getCurrentPageIndex();
        Size pageSizeNoZoom = await _controller.getPageSize(currentPageIndex);
        Size pageSizeZoom = await _controller.getPageSize(currentPageIndex, noZoom: false);
        debugPrint('ComPDFKit:pageSizeNoZoom:$pageSizeNoZoom');
        debugPrint('ComPDFKit:pageSize:$pageSizeZoom');
        break;
    }
  }
}

var actions = [
  'setScale',
  'getScale',
  'setCanScale',
  'setReadBgColor',
  'getReadBgColor',
  'setFormHighlight',
  'setLinkHighlight',
  'setVerticalMode',
  'setPageSpacing',
  'setContinueMode',
  'setDoublePageMode',
  'setCropMode',
  'setDisplayPageIndex',
  'getCurrentPageIndex',
  'setPageSameWidth',
  'isPageInScreen',
  'setFixedScroll',
  'setCoverPageMode',
  'getPageSize'
];

Color randomColor() {
  final Random random = Random();
  return Color.fromARGB(
    255, // Alpha value (fully opaque)
    random.nextInt(256), // Red value
    random.nextInt(256), // Green value
    random.nextInt(256), // Blue value
  );
}