import 'package:comunes_flutter/comunes_flutter.dart';
import 'package:flutter/material.dart';
import 'package:flutter_map/flutter_map.dart';

/// Zoom control widget for flutter_map v6+
class ZoomMapPluginWidget extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return LayoutBuilder(
        builder: (context, constraints) =>
            Stack(fit: StackFit.expand, children: <Widget>[
              Positioned(
                top: constraints.maxHeight - 100,
                right: 10.0,
                child: new CenteredRow(
                  children: <Widget>[
                    new Column(
                      children: <Widget>[
                        _zoomButton(context, Icons.zoom_in, 1),
                        _zoomButton(context, Icons.zoom_out, -1)
                      ],
                    )
                  ],
                ),
              )
            ]));
  }

  IconButton _zoomButton(BuildContext context, IconData zoomIcon, int inc) {
    return new IconButton(
        icon: Icon(zoomIcon),
        onPressed: () {
          final controller = MapController.of(context);
          var currentZoom = controller.camera.zoom;
          var currentCenter = controller.camera.center;
          controller.move(currentCenter, currentZoom + inc);
        });
  }
}