list_tile.dart

// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'dart:async';
import 'dart:io';
import 'package:diagram_capture/diagram_capture.dart';
import 'package:flutter/material.dart';
import 'diagram_step.dart';

class ListTileDiagram extends StatelessWidget implements DiagramMetadata {
  const ListTileDiagram(this.name);

  @override
  final String name;

  @override
  Widget build(BuildContext context) {
    return ConstrainedBox(
      key: UniqueKey(),
      constraints: BoxConstraints.tight(const Size(400.0, 550.0)),
      child: Container(
        alignment: FractionalOffset.center,
        padding: const EdgeInsets.all(5.0),
        color: Colors.white,
        child: ListView(
          children: const <Widget>[
            Card(child: ListTile(title: Text('One-line ListTile'))),
            Card(
              child: ListTile(
                leading: FlutterLogo(),
                title: Text('One-line with leading widget'),
              ),
            ),
            Card(
              child: ListTile(
                title: Text('One-line with trailing widget'),
                trailing: Icon(Icons.more_vert),
              ),
            ),
            Card(
              child: ListTile(
                leading: FlutterLogo(),
                title: Text('One-line with both widgets'),
                trailing: Icon(Icons.more_vert),
              ),
            ),
            Card(
              child: ListTile(
                title: Text('One-line dense ListTile'),
                dense: true,
              ),
            ),
            Card(
              child: ListTile(
                leading: FlutterLogo(size: 56.0),
                title: Text('Two-line ListTile'),
                subtitle: Text('Here is a second line'),
                trailing: Icon(Icons.more_vert),
              ),
            ),
            Card(
              child: ListTile(
                leading: FlutterLogo(size: 72.0),
                title: Text('Three-line ListTile'),
                subtitle: Text(
                  'A sufficiently long subtitle warrants three lines.'
                ),
                trailing: Icon(Icons.more_vert),
                isThreeLine: true,
              ),
            ),
          ],
        ),
      ),
    );
  }
}

class ListTileDiagramStep extends DiagramStep<ListTileDiagram> {
  ListTileDiagramStep(DiagramController controller) : super(controller);

  @override
  final String category = 'material';

  @override
  Future<List<ListTileDiagram>> get diagrams async => <ListTileDiagram>[
        const ListTileDiagram('list_tile'),
      ];

  @override
  Future<File> generateDiagram(ListTileDiagram diagram) async {
    controller.builder = (BuildContext context) => diagram;
    return await controller.drawDiagramToFile(File('${diagram.name}.png'));
  }
}