Line data    Source code

       1              : // Copyright 2023 The terCAD team. All rights reserved.
       2              : // Use of this source code is governed by a CC BY-NC-ND 4.0 license that can be found in the LICENSE file.
       3              : 
       4              : import 'dart:math';
       5              : 
       6              : import 'package:app_finance/_configs/theme_helper.dart';
       7              : import 'package:app_finance/_ext/build_context_ext.dart';
       8              : import 'package:app_finance/components/_core/component_data.dart';
       9              : import 'package:material_ui/material_ui.dart';
      10              : 
      11              : class DraggablePointer extends StatefulWidget {
      12              :   final Map<String, dynamic> data;
      13              :   final bool topLeft;
      14              :   final Function()? onDragStarted;
      15              :   final Function(DraggableDetails)? onDragEnd;
      16              : 
      17            0 :   const DraggablePointer(
      18              :     this.data, {
      19              :     super.key,
      20              :     required this.onDragStarted,
      21              :     required this.onDragEnd,
      22              :     this.topLeft = true,
      23              :   });
      24              : 
      25            0 :   @override
      26            0 :   DraggablePointerState createState() => DraggablePointerState();
      27              : }
      28              : 
      29              : class DraggablePointerState extends State<DraggablePointer> {
      30              :   Color? color;
      31              : 
      32            0 :   @override
      33              :   Widget build(BuildContext context) {
      34            0 :     final colorScheme = context.colorScheme;
      35            0 :     final border = BorderSide(width: 4, color: context.colorScheme.primary);
      36            0 :     final size = [ThemeHelper.getHeight(context) / 3, ThemeHelper.getWidth(context) / 3].reduce(min);
      37            0 :     return Container(
      38            0 :       margin: EdgeInsets.all(ThemeHelper.getIndent(0.1)),
      39            0 :       child: Draggable<ComponentData>(
      40            0 :         data: widget.data,
      41            0 :         onDragEnd: widget.onDragEnd,
      42            0 :         onDragStarted: widget.onDragStarted,
      43            0 :         feedback: Transform.translate(
      44            0 :           offset: widget.topLeft ? Offset.zero : Offset(-size, -size),
      45            0 :           child: Container(
      46            0 :             decoration: BoxDecoration(
      47            0 :               border: Border(
      48            0 :                 top: widget.topLeft ? border : BorderSide.none,
      49            0 :                 left: widget.topLeft ? border : BorderSide.none,
      50            0 :                 bottom: widget.topLeft ? BorderSide.none : border,
      51            0 :                 right: widget.topLeft ? BorderSide.none : border,
      52              :               ),
      53              :             ),
      54              :             height: size,
      55              :             width: size,
      56              :           ),
      57              :         ),
      58            0 :         child: MouseRegion(
      59              :           cursor: SystemMouseCursors.resizeDownRight,
      60            0 :           onEnter: (_) => setState(() => color = colorScheme.primary.withValues(alpha: 0.5)),
      61            0 :           onExit: (_) => setState(() => color = null),
      62            0 :           child: Container(
      63            0 :             decoration: BoxDecoration(
      64              :               shape: BoxShape.circle,
      65            0 :               color: color ?? context.colorScheme.secondary.withValues(alpha: 0.4),
      66              :             ),
      67              :           ),
      68              :         ),
      69              :       ),
      70              :     );
      71              :   }
      72              : }