enhanced ping graph

DutyContent.csproj

@@ -72,6 +72,7 @@
     <Compile Include="DcControl.Designer.cs">
       <DependentUpon>DcControl.cs</DependentUpon>
     </Compile>
+    <Compile Include="Libre\PingGrapher.cs" />
     <Compile Include="Tab\ConfigForm.cs">
       <SubType>Form</SubType>
     </Compile>
@@ -95,7 +96,6 @@
       <DependentUpon>DutyOvForm.cs</DependentUpon>
     </Compile>
     <Compile Include="ThirdParty\Converter.cs" />
-    <Compile Include="ThirdParty\FastGraphLine.cs" />
     <Compile Include="ThirdParty\LineDb.cs" />
     <Compile Include="ThirdParty\NativeMethods.cs" />
     <Compile Include="ThirdParty\ThreadWorker.cs" />

Libre/PingGrapher.cs

@@ -0,0 +1,148 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+using System.Drawing;
+
+namespace DutyContent.Libre
+{
+	class PingGrapher
+	{
+		private PictureBox _pbx;
+		private Bitmap _bmp;
+		private Font _fnt;
+
+		private int _count_per_line;
+
+		public int Width { get; private set; } = -1;
+		public int Height { get; private set; } = -1;
+
+		public int Step { get; set; } = 20;
+
+		//
+		public PingGrapher(PictureBox container_pbx)
+		{
+			_pbx = container_pbx;
+
+			_fnt = new Font(FontFamily.GenericSansSerif, 7.0f, FontStyle.Regular, GraphicsUnit.Pixel);
+		}
+
+		//
+		public void Enter()
+		{
+			if (_pbx == null)
+				return;
+
+			if (Width != _pbx.ClientSize.Width || Height != _pbx.ClientSize.Height)
+			{
+				Width = _pbx.ClientSize.Width;
+				Height = _pbx.ClientSize.Height;
+
+				_count_per_line = (Width - Step + Step) / Step + 1;
+
+				_bmp = new Bitmap(Width, Height);
+			}
+
+			if (_bmp != null)
+			{
+				using (var g = Graphics.FromImage(_bmp))
+					g.Clear(Color.Black);
+			}
+		}
+
+		//
+		class CalcData
+		{
+			public int[] Values { get; set; }
+			public int Count { get; set; }
+
+			public int Min { get; set; } = int.MaxValue;
+			public int Max { get; set; } = int.MinValue;
+
+			public int RangeMax { get; set; }
+			public int RangeStep { get; set; }
+
+			public CalcData(List<int> lst, int count_per_line, int range_delta)
+			{
+				var at = Math.Max(lst.Count - count_per_line, 0);
+
+				Count = lst.Count - at;
+				Values = new int[Count];
+
+				for (int j = 0, i = lst.Count - 1; i >= at; i--)
+				{
+					if (Min > lst[i]) Min = lst[i];
+					if (Max < lst[i]) Max = lst[i];
+
+					Values[j++] = lst[i];
+				}
+
+				var rf = (float)(Max + range_delta) / 10.0f;
+				RangeMax = ((int)Math.Round(rf) + 1) * 10;
+
+				RangeStep =
+					RangeMax < 100 ? 20 :
+					RangeMax < 300 ? 40 :
+					RangeMax < 1000 ? 100 : 200;
+			}
+		}
+
+		public void DrawValues(List<int> values)
+		{
+			if (_bmp == null || values.Count < 2)
+				return;
+
+			var cd = new CalcData(values, _count_per_line, 5);
+			var height = (float)Height;
+			var scale = height / cd.RangeMax;
+
+			using (var g = Graphics.FromImage(_bmp))
+			{
+				float f;
+				int u;
+
+				for (var i = cd.RangeStep; i < cd.RangeMax; i += cd.RangeStep)
+				{
+					f = height - i * scale;
+					u = (int)f;
+
+					g.DrawLine(Pens.DarkBlue, 0, u, Width - 1, u);
+					g.DrawString(i.ToString(), _fnt, Brushes.DarkGray, 0.0f, f);
+				}
+
+				var pen = new Pen(Color.White, 2.0f);
+
+#if false
+				u = 0;
+
+				// linear
+				for (var i = 0; i < cd.Count - 1; i++)
+				{
+					var y1 = height - cd.Values[i] * scale;
+					var y2 = height - cd.Values[i + 1] * scale;
+
+					g.DrawLine(pen, u, y1, u + Step, y2);
+
+					u += Step;
+				}
+#else
+				// curved
+				u = 10;
+				var pts = new PointF[cd.Count - 1];
+				for (var i = 0; i < cd.Count - 1; i++, u += Step)
+					pts[i] = new PointF(u, height - cd.Values[i] * scale);
+				g.DrawCurve(pen, pts, 0.6f);
+#endif
+			}
+		}
+
+		//
+		public void Leave()
+		{
+			_pbx.Image = _bmp;
+			_pbx.Refresh();
+		}
+	}
+}

MesgLog.cs

@@ -123,5 +123,12 @@ namespace DutyContent
 			string msg = ExceptionPattern.Replace(ex.Message, "{{$1}}");
 			Write(Color.Red, $"{text}: {msg}");
 		}
+
+		// exception
+		public static void Ex(Exception ex)
+		{
+			string msg = ExceptionPattern.Replace(ex.Message, "{{$1}}");
+			Write(Color.Red, $"EX: {msg}");
+		}
 	}
 }

Tab/DutyForm.cs

@@ -31,7 +31,7 @@ namespace DutyContent.Tab
 		private System.Timers.Timer _ping_timer;
 		private long _ping_last;
 		private Color _ping_color = Color.Transparent;
-		private ThirdParty.FastGraphLine _ping_graph;
+		private Libre.PingGrapher _ping_grpr;
 		private List<int> _ping_keeps = new List<int>();
 
 		public DutyForm()
@@ -41,7 +41,8 @@ namespace DutyContent.Tab
 			InitializeComponent();
 
 			_overlay = new Overlay.DutyOvForm();
-			_ping_graph = new ThirdParty.FastGraphLine(pbxPingGraph);
+			_ping_grpr = new Libre.PingGrapher(pbxPingGraph);
+			_ping_keeps.Add(0);
 		}
 
 		private void DutyTabForm_FormClosing(object sender, FormClosingEventArgs e)
@@ -135,7 +136,10 @@ namespace DutyContent.Tab
 			_ping_timer.Elapsed += (sender, e) => PingOnce();
 
 			if (DcConfig.Duty.UsePing)
+			{
+				PingOnce();
 				_ping_timer.Start();
+			}
 		}
 
 		public void PluginDeinitialize()
@@ -1442,12 +1446,12 @@ namespace DutyContent.Tab
 			if (DcConfig.Duty.PingGraph)
 			{
 				_ping_keeps.Add((int)rtt);
-				if (_ping_keeps.Count > 100)
-					_ping_keeps.Remove(0);
+				if (_ping_keeps.Count > 120)
+					_ping_keeps.RemoveAt(0);
 
-				_ping_graph.Enter();
-				_ping_graph.SetValues(_ping_keeps);
-				WorkerAct.Invoker(() => _ping_graph.Leave());
+				_ping_grpr.Enter();
+				_ping_grpr.DrawValues(_ping_keeps);
+				WorkerAct.Invoker(() => _ping_grpr.Leave());
 			}
 		}
 

ThirdParty/FastGraphLine.cs

@@ -1,107 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Drawing;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using System.Windows.Forms;
-
-namespace DutyContent.ThirdParty
-{
-	class FastGraphLine
-	{
-		private PictureBox _pbx;
-		private Bitmap _bmp;
-
-		private int _midv;
-		private int _dcnt;
-
-		public int Width { get; private set; } = -1;
-		public int Height { get; private set; } = -1;
-
-		//
-		public FastGraphLine(PictureBox pbx)
-		{
-			_pbx = pbx;
-		}
-
-		//
-		public void Enter()
-		{
-			if (_pbx == null)
-				return;
-
-			if (Width != _pbx.ClientSize.Width || Height != _pbx.ClientSize.Height)
-			{
-				Width = _pbx.ClientSize.Width;
-				Height = _pbx.ClientSize.Height;
-
-				_midv = Height / 2;
-				_dcnt = (Width - 40) / 20;
-
-				_bmp = new Bitmap(Width, Height);
-			}
-
-			if (_bmp != null)
-			{
-				using (var g = Graphics.FromImage(_bmp))
-				{
-					g.Clear(Color.Black);
-					g.DrawLine(Pens.DarkBlue, 0, _midv, Width - 1, _midv);
-				}
-			}
-		}
-
-		//
-		public void SetValues(List<int> vs, int mindelta = 5, int maxdelta = 5)
-		{
-			if (_bmp == null && vs.Count >= 2)
-				return;
-
-			int min = int.MaxValue, max = int.MinValue;
-			int cnt = vs.Count - _dcnt;
-
-			if (cnt < 0)
-				cnt = 0;
-
-			for (var i = vs.Count - 1; i >= cnt; i--)
-			{
-				if (min > vs[i])
-					min = vs[i];
-				if (max < vs[i])
-					max = vs[i];
-			}
-
-			min -= mindelta;
-			max += maxdelta;
-
-			//
-			MesgLog.L("Count: {0}, MM: {1}/{2}", vs.Count, min, max);
-
-			float scale = (float)Height / (float)(max - min);
-			int xx = 10;
-
-			using (var g = Graphics.FromImage(_bmp))
-			{
-				Pen pen = new Pen(Color.White, 2.0f);
-
-				for (var i = vs.Count - 2; i >= cnt; i--)
-				{
-					var y1 = (int)((vs[i + 1] - min) * scale);
-					var y2 = (int)((vs[i] - min) * scale);
-
-					g.DrawLine(pen, xx, y1, xx + 10, y2);
-
-					xx += 10;
-				}
-			}
-		}
-
-		//
-		public void Leave()
-		{
-			_pbx.Image = _bmp;
-			_pbx.Refresh();
-		}
-	}
-}