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annotate Implab.Diagnostics.Interactive/TraceViewControl.cs @ 45:d10034588e38 interactive logger

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initial work on interactive logger
author cin
date Thu, 17 Apr 2014 03:05:53 +0400
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1 using System;
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2 using System.Collections.Generic;
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3 using System.ComponentModel;
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4 using System.Drawing;
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5 using System.Data;
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6 using System.Linq;
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7 using System.Text;
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8 using System.Threading.Tasks;
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9 using System.Windows.Forms;
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10
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11 namespace Implab.Diagnostics.Interactive {
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12 public partial class TraceViewControl : UserControl {
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13 int m_maxEvents = 1000;
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14
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15 string m_status = "ready";
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16
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17 readonly LinkedList<TraceViewItem> m_events = new LinkedList<TraceViewItem>();
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18 public TraceViewControl() {
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19 InitializeComponent();
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20
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21 var ticks = Environment.TickCount;
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22
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23 for (int i = 0; i < 1333; i++) {
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24 AddViewItem(new TraceViewItem {
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25 indent = i % 4,
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26 message = String.Format("Auto generated {0}", i),
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27 thread = 2,
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28 timestamp = ticks + i*10
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29 });
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30 }
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31 }
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32
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33 public void AddViewItem(TraceViewItem item) {
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34 m_events.AddLast(item);
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35 if (m_events.Count > m_maxEvents)
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36 m_events.RemoveFirst();
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37 }
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38
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39 protected override void OnPaint(PaintEventArgs e) {
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40 base.OnPaint(e);
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41
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42 if (m_status != null)
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43 e.Graphics.DrawString(m_status, DefaultFont, Brushes.Black, 0, 0);
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44
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45 }
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46
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47 protected override void OnMouseMove(MouseEventArgs e) {
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48 base.OnMouseMove(e);
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49
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50 m_status = String.Format("({0},{1})", e.X, e.Y);
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51 Invalidate();
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52 }
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53
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54 }
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55 }