test/ElmSharp.Test/TC/GestureLayerTest2.cs

   1 using System.Collections.Generic;
   2
   3 namespace ElmSharp.Test
   4 {
   5     class GestureLayerTest2 : TestCaseBase
   6     {
   7         public override string TestName => "GestureLayerTest2";
   8         public override string TestDescription => "GestureLayer feature : Momentum & Rotate Test.";
   9
  10         private GestureLayer _glayer;
  11         private Label _log;
  12         private List<string> _logEntries;
  13         private Background _background;
  14         private Rectangle _box1;
  15
  16         int _angle = 0;
  17         int _prevAngle = 0;
  18         int _totalX = 0;
  19         int _totalY = 0;
  20
  21         public override void Run(Window window)
  22         {
  23             _background = new Background(window);
  24             var windowSize = window.ScreenSize;
  25             _background.Color = Color.White;
  26             _background.Resize(windowSize.Width, windowSize.Height);
  27             _background.Show();
  28
  29             _box1 = new Rectangle(window)
  30             {
  31                 Color = Color.Yellow
  32             };
  33             _box1.Resize(400, 600);
  34             _box1.Move(160, 160);
  35             _box1.Show();
  36
  37             _log = new Label(window);
  38             _log.Resize(700, 1280 - 780);
  39             _log.Move(10, 770);
  40             _log.Show();
  41             _logEntries = new List<string>();
  42             Log("Momentum & Roate Gesture Test.");
  43
  44             _glayer = new GestureLayer(_box1);
  45             _glayer.Attach(_box1);
  46
  47             _glayer.RotateStep = 3;
  48             _glayer.SetRotateCallback(GestureLayer.GestureState.Start, (rotate) =>
  49             {
  50                 _prevAngle = (int)rotate.BaseAngle;
  51             });
  52
  53             _glayer.SetRotateCallback(GestureLayer.GestureState.Move, (rotate) =>
  54             {
  55                 if (_box1.IsMapEnabled)
  56                 {
  57                     _angle += (int)rotate.Angle - _prevAngle;
  58                     _prevAngle = (int)rotate.Angle;
  59                     Log($"@@ Rotation XY:({rotate.X},{rotate.Y}) a:{rotate.Angle:F2} ba:{rotate.BaseAngle:F2} total:{_angle}");
  60                     ApplyTransformation();
  61                 }
  62             });
  63
  64             int prevX = 0, prevY = 0;
  65             _glayer.SetMomentumCallback(GestureLayer.GestureState.Start, (data) =>
  66             {
  67                 if (data.FingersCount == 1)
  68                 {
  69                     prevX = _glayer.EvasCanvas.Pointer.X;
  70                     prevY = _glayer.EvasCanvas.Pointer.Y;
  71                 }
  72             });
  73             _glayer.SetMomentumCallback(GestureLayer.GestureState.Move, (data) =>
  74             {
  75                 if (data.FingersCount == 1)
  76                 {
  77                     data.X2 = _glayer.EvasCanvas.Pointer.X;
  78                     data.Y2 = _glayer.EvasCanvas.Pointer.Y;
  79                     _totalX += (data.X2 - prevX);
  80                     _totalY += (data.Y2 - prevY);
  81                     prevX = data.X2;
  82                     prevY = data.Y2;
  83                     Log($"@@ Momentum X:({prevX},{data.X2}), Y({prevY},{data.Y2}) = Total:({(data.X2 - prevX)}, {(data.Y2 - prevY)})");
  84                     ApplyTransformation();
  85                 }
  86             });
  87             _glayer.SetMomentumCallback(GestureLayer.GestureState.Abort, (data) =>
  88             {
  89                 Log($"@@ Momentum Abort");
  90             });
  91             _glayer.SetMomentumCallback(GestureLayer.GestureState.End, (data) =>
  92             {
  93                 Log($"@@ Momentum End");
  94             });
  95         }
  96
  97         void ApplyTransformation()
  98         {
  99             EvasMap map = new EvasMap(4);
 100             Rect geometry = _box1.Geometry;
 101             map.PopulatePoints(geometry, 0);
 102
 103             map.Rotate3D(0, 0, _angle, (int)(geometry.X + geometry.Width * 0.5), (int)(geometry.Y + geometry.Height * 0.5), 0);
 104
 105             Point3D p;
 106             for (int i = 0; i < 4; i++)
 107             {
 108                 p = map.GetPointCoordinate(i);
 109                 p.X += _totalX;
 110                 p.Y += _totalY;
 111                 map.SetPointCoordinate(i, p);
 112             }
 113             _box1.EvasMap = map;
 114             _box1.IsMapEnabled = true;
 115         }
 116
 117         private void Log(string format, params object[] args)
 118         {
 119             var entry = string.Format(format, args);
 120             if (_logEntries.Count > 15)
 121                 _logEntries.RemoveRange(0, _logEntries.Count - 15);
 122             _logEntries.Add(entry);
 123             _log.Text = string.Join("<br>", _logEntries);
 124         }
 125     }
 126 }