remove TASFlow and re-define it as a assist class

BallanceTASEditor/UI/TASSlider.cs

@@ -0,0 +1,44 @@
+using BallanceTASEditor.Core;
+using BallanceTASEditor.Core.TASStruct;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Navigation;
+using System.Windows.Shapes;
+
+namespace BallanceTASEditor.UI {
+    public class TASSlider {
+        public TASSlider(Slider slider) {
+            mSlider = slider;
+            mSlider.Minimum = 0;
+
+            mSlider.ValueChanged += func_SliderValueChanged;
+        }
+
+        public event Action<long> ValueChanged;
+        Slider mSlider;
+
+        public void MoveSliderManually(bool isPrev, bool isFast, int fastCount) {
+            var step = isFast ? fastCount : 1;
+            mSlider.Value = Util.Clamp(mSlider.Value.ToInt32() + (isPrev ? -1 : 1) * step, mSlider.Minimum.ToInt32(), mSlider.Maximum.ToInt32());
+        }
+
+        public void UpdateRange(TASFile mFile) {
+            mSlider.Maximum = mFile.mFrameCount - 1;
+            mSlider.Value = mFile.GetPointerIndex();
+        }
+
+        private void func_SliderValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e) {
+            ValueChanged?.Invoke(e.NewValue.ToInt64());
+        }
+
+    }
+}