初步优化项目结构

2021-09-26 20:50:13 +08:00
parent f16d031417
commit 29a985e1b1
535 changed files with 366 additions and 359 deletions
--- a/lib/widget_system/widgets/SingleChildRenderObjectWidget/Transform/node1_skew.dart
+++ b/lib/widget_system/widgets/SingleChildRenderObjectWidget/Transform/node1_skew.dart
@@ -0,0 +1,90 @@
+import 'dart:math';
+
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+
+import 'matrix4_shower.dart';
+
+/// create by 张风捷特烈 on 2020-04-19
+/// contact me by email 1981462002@qq.com
+/// 说明:
+
+//    {
+//      "widgetId": 78,
+//      "name": '斜切变换skew',
+//      "priority": 1,
+//      "subtitle":
+//          "斜切x由R0C1数控制,入参为弧度值,表示斜切角度\n"
+//          "斜切y由R1C0数控制,入参为弧度值,表示斜切角度",
+//    }
+class SkewTransform extends StatefulWidget {
+  @override
+  _SkewTransformState createState() => _SkewTransformState();
+}
+
+class _SkewTransformState extends State<SkewTransform> {
+  late Matrix4 _m4;
+  double _alpha = 0;
+  double _beta = 0;
+
+  @override
+  void initState() {
+    _m4 = Matrix4.identity();
+    super.initState();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Column(
+      children: <Widget>[
+        Row(
+          mainAxisAlignment: MainAxisAlignment.spaceEvenly,
+          children: <Widget>[_buildTransform(), Matrix4Shower(_m4)],
+        ),
+        _buildSliders()
+      ],
+    );
+  }
+
+  Widget _buildTransform() {
+    _m4 = Matrix4.skew(_alpha, _beta);
+    return Transform(
+      transform: _m4,
+      child: Container(
+          color: Colors.cyanAccent,
+          width: 100,
+          height: 100,
+          child: Image.asset(
+            'assets/images/wy_300x200.webp',
+            fit: BoxFit.cover,
+          )),
+    );
+  }
+
+  Widget _buildSliders() => Column(
+        children: <Widget>[
+          Slider(
+              min: -pi,
+              max: pi,
+              value: _alpha,
+              divisions: 360,
+              label: 'alpha:' + (_alpha * 180 / pi).toStringAsFixed(1) + "°",
+              onChanged: (v) {
+                setState(() {
+                  _alpha = v;
+                });
+              }),
+          Slider(
+              min: -pi,
+              max: pi,
+              value: _beta,
+              divisions: 360,
+              label: 'beta:' + (_beta * 180 / pi).toStringAsFixed(1) + "°",
+              onChanged: (v) {
+                setState(() {
+                  _beta = v;
+                });
+              })
+        ],
+      );
+}