source: branches/HeuristicLab.Visualization/HeuristicLab.Visualization/3.3/ChartModes/RulerChartMode.cs @ 13132

Last change on this file since 13132 was 13132, checked in by jkarder, 7 years ago

#1265: worked on visualization

  • added Selected to ChartMode
  • added PrimitiveAttribute
File size: 4.5 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2015 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System;
23using System.Drawing;
24using System.Windows.Forms;
25using HeuristicLab.Common.Resources;
26
27namespace HeuristicLab.Visualization.ChartModes {
28  public class RulerChartMode : ChartMode {
29    protected Point? startPoint;
30
31    public override Image Image { get { return VSImageLibrary.TrackBar; } }
32    public override string Text { get { return "&Ruler"; } }
33    public override string ToolTipText { get { return "Ruler"; } }
34    public override Cursor Cursor { get { return Cursors.Cross; } }
35
36    public RulerChartMode(ChartControl control) : base(control) { }
37
38    public override void HandleOnMouseDown(object sender, MouseEventArgs e) {
39      try {
40        switch (e.Button) {
41          case MouseButtons.Left:
42            if (startPoint.HasValue) {
43              if (startPoint.Value == e.Location) {
44                startPoint = null;
45                chartControl.RefreshPicture();
46              }
47            } else
48              startPoint = e.Location;
49            break;
50        }
51      } finally {
52        base.HandleOnMouseDown(sender, e);
53      }
54    }
55
56    public override void HandleOnMouseMove(object sender, MouseEventArgs e) {
57      try {
58        if (startPoint.HasValue) {
59          chartControl.RefreshPicture();
60          using (var graphics = chartControl.CreatePictureGraphics()) {
61            DrawCross(graphics, startPoint.Value);
62            DrawCross(graphics, e.Location);
63            DrawLineBetweenLocations(graphics, startPoint.Value, e.Location);
64          }
65        }
66      } finally {
67        base.HandleOnMouseMove(sender, e);
68      }
69    }
70
71    public override void HandleOnMouseUp(object sender, MouseEventArgs e) {
72      try {
73        switch (e.Button) {
74          case MouseButtons.Left:
75            if (startPoint.HasValue && startPoint.Value != e.Location) {
76              using (var graphics = chartControl.CreatePictureGraphics())
77                DrawInfoBox(graphics, e.Location);
78              startPoint = null;
79            }
80            break;
81        }
82      } finally {
83        base.HandleOnMouseUp(sender, e);
84      }
85    }
86
87    #region Helpers
88    protected virtual void DrawCross(Graphics graphics, Point point) {
89      using (var pen = new Pen(Color.Red)) {
90        graphics.DrawLine(pen, point.X - 3, point.Y - 3, point.X + 3, point.Y + 3);
91        graphics.DrawLine(pen, point.X - 3, point.Y + 3, point.X + 3, point.Y - 3);
92      }
93    }
94
95    protected virtual void DrawLineBetweenLocations(Graphics graphics, Point startLocation, Point endLocation) {
96      using (var pen = new Pen(Color.Red))
97        graphics.DrawLine(pen, startLocation.X, startLocation.Y, endLocation.X, endLocation.Y);
98    }
99
100    protected virtual void DrawInfoBox(Graphics graphics, Point location) {
101      var offsetP = new Size(location.X - startPoint.Value.X, location.Y - startPoint.Value.Y);
102      var offsetW = chartControl.Chart.TransformPixelToWorld(offsetP);
103
104      double lengthP = Math.Sqrt(Math.Pow(offsetP.Width, 2) + Math.Pow(offsetP.Height, 2));
105      double lengthW = Math.Sqrt(Math.Pow(offsetW.Width, 2) + Math.Pow(offsetW.Height, 2));
106      string text = string.Format("Pixel: {0} " + Environment.NewLine + "World: {1:##.###}", Math.Round(lengthP), Math.Round(lengthW, 3));
107
108      var textSize = graphics.MeasureString(text, SystemFonts.DefaultFont);
109      int width = (int)Math.Ceiling(textSize.Width);
110      int height = (int)Math.Ceiling(textSize.Height);
111
112      graphics.FillRectangle(Brushes.White, location.X, location.Y, width, height);
113      graphics.DrawRectangle(Pens.Red, location.X, location.Y, width, height);
114      graphics.DrawString(text, SystemFonts.DefaultFont, Brushes.Black, location.X, location.Y + 2);
115    }
116    #endregion
117  }
118}
Note: See TracBrowser for help on using the repository browser.