SuperVPN/desktop_global/VideoReader/SelectionRangeSlider.cs

using System;
using System.ComponentModel;
using System.Drawing;
using System.Windows.Forms;

namespace VideoReader;

[Description("Very basic slider control with selection range.")]
public class SelectionRangeSlider : UserControl
{
	private enum MovingMode
	{
		MovingValue,
		MovingMin,
		MovingMax
	}

	private int min = 0;

	private int max = 100;

	private int selectedMin = 0;

	private int selectedMax = 100;

	private int value = 50;

	private MovingMode movingMode;

	private IContainer components = null;

	[Description("Minimum value of the slider.")]
	public int Min
	{
		get
		{
			return min;
		}
		set
		{
			min = value;
			((Control)this).Invalidate();
		}
	}

	[Description("Maximum value of the slider.")]
	public int Max
	{
		get
		{
			return max;
		}
		set
		{
			max = value;
			((Control)this).Invalidate();
		}
	}

	[Description("Minimum value of the selection range.")]
	public int SelectedMin
	{
		get
		{
			return selectedMin;
		}
		set
		{
			selectedMin = value;
			if (this.SelectionChanged != null)
			{
				this.SelectionChanged(this, null);
			}
			((Control)this).Invalidate();
		}
	}

	[Description("Maximum value of the selection range.")]
	public int SelectedMax
	{
		get
		{
			return selectedMax;
		}
		set
		{
			selectedMax = value;
			if (this.SelectionChanged != null)
			{
				this.SelectionChanged(this, null);
			}
			((Control)this).Invalidate();
		}
	}

	[Description("Current value.")]
	public int Value
	{
		get
		{
			return value;
		}
		set
		{
			this.value = value;
			if (this.ValueChanged != null)
			{
				this.ValueChanged(this, null);
			}
			((Control)this).Invalidate();
		}
	}

	[Description("Fired when SelectedMin or SelectedMax changes.")]
	public event EventHandler SelectionChanged;

	[Description("Fired when Value changes.")]
	public event EventHandler ValueChanged;

	public SelectionRangeSlider()
	{
		//IL_005e: Unknown result type (might be due to invalid IL or missing references)
		//IL_0068: Expected O, but got Unknown
		//IL_0071: Unknown result type (might be due to invalid IL or missing references)
		//IL_007b: Expected O, but got Unknown
		//IL_0084: Unknown result type (might be due to invalid IL or missing references)
		//IL_008e: Expected O, but got Unknown
		InitializeComponent();
		((Control)this).SetStyle((ControlStyles)8192, true);
		((Control)this).SetStyle((ControlStyles)131072, true);
		((Control)this).Paint += new PaintEventHandler(SelectionRangeSlider_Paint);
		((Control)this).MouseDown += new MouseEventHandler(SelectionRangeSlider_MouseDown);
		((Control)this).MouseMove += new MouseEventHandler(SelectionRangeSlider_MouseMove);
	}

	private void SelectionRangeSlider_Paint(object sender, PaintEventArgs e)
	{
		e.Graphics.FillRectangle(Brushes.White, ((Control)this).ClientRectangle);
		Rectangle rectangle = new Rectangle((selectedMin - Min) * ((Control)this).Width / (Max - Min), 0, (selectedMax - selectedMin) * ((Control)this).Width / (Max - Min), ((Control)this).Height);
		e.Graphics.FillRectangle(Brushes.Blue, rectangle);
		e.Graphics.DrawRectangle(Pens.Black, 0, 0, ((Control)this).Width - 1, ((Control)this).Height - 1);
		e.Graphics.DrawLine(Pens.Black, (Value - Min) * ((Control)this).Width / (Max - Min), 0, (Value - Min) * ((Control)this).Width / (Max - Min), ((Control)this).Height);
	}

	private void SelectionRangeSlider_MouseDown(object sender, MouseEventArgs e)
	{
		int num = Min + e.X * (Max - Min) / ((Control)this).Width;
		int num2 = Math.Abs(num - Value);
		int num3 = Math.Abs(num - SelectedMin);
		int val = Math.Abs(num - SelectedMax);
		int num4 = Math.Min(num2, Math.Min(num3, val));
		if (num4 == num2)
		{
			movingMode = MovingMode.MovingValue;
		}
		else if (num4 == num3)
		{
			movingMode = MovingMode.MovingMin;
		}
		else
		{
			movingMode = MovingMode.MovingMax;
		}
		SelectionRangeSlider_MouseMove(sender, e);
	}

	private void SelectionRangeSlider_MouseMove(object sender, MouseEventArgs e)
	{
		//IL_0002: Unknown result type (might be due to invalid IL or missing references)
		//IL_000c: Invalid comparison between Unknown and I4
		if ((int)e.Button == 1048576)
		{
			int num = Min + e.X * (Max - Min) / ((Control)this).Width;
			if (movingMode == MovingMode.MovingValue)
			{
				Value = num;
			}
			else if (movingMode == MovingMode.MovingMin)
			{
				SelectedMin = num;
			}
			else if (movingMode == MovingMode.MovingMax)
			{
				SelectedMax = num;
			}
		}
	}

	protected override void Dispose(bool disposing)
	{
		if (disposing && components != null)
		{
			components.Dispose();
		}
		((ContainerControl)this).Dispose(disposing);
	}

	private void InitializeComponent()
	{
		components = new Container();
		((ContainerControl)this).AutoScaleMode = (AutoScaleMode)1;
	}
}