1 | using System;
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2 | using System.Drawing;
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3 |
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4 | namespace HeuristicLab.Visualization {
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5 | public enum AnchorPositionX {
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6 | Left, Middle, Right
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7 | }
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8 |
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9 | public enum AnchorPositionY {
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10 | Bottom, Middle, Top
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11 | }
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12 |
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13 | public class TextShape : IShape {
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14 | private IShape parent;
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15 | private Font font;
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16 | private Brush brush;
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17 | private Color color;
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18 | private string text;
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19 | private double x;
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20 | private double y;
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21 |
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22 | private AnchorPositionX anchorPositionX = AnchorPositionX.Left;
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23 | private AnchorPositionY anchorPositionY = AnchorPositionY.Top;
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24 |
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25 | public TextShape(string text) : this(0, 0, text, 14) {}
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26 |
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27 | public TextShape(double x, double y, string text) : this(x, y, text, 8) {}
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28 |
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29 | public TextShape(double x, double y, string text, int fontSize) {
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30 | this.x = x;
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31 | this.y = y;
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32 | this.text = text;
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33 | font = new Font("Arial", fontSize);
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34 |
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35 | Color = Color.Blue;
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36 | }
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37 |
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38 | public string Text {
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39 | get { return text; }
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40 | set { text = value; }
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41 | }
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42 |
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43 | public double X {
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44 | get { return x; }
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45 | set { x = value; }
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46 | }
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47 |
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48 | public double Y {
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49 | get { return y; }
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50 | set { y = value; }
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51 | }
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52 |
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53 | public Color Color {
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54 | get { return color; }
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55 | set {
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56 | color = value;
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57 | brush = new SolidBrush(color);
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58 | }
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59 | }
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60 |
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61 | public AnchorPositionX AnchorPositionX {
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62 | get { return anchorPositionX; }
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63 | set { anchorPositionX = value; }
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64 | }
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65 |
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66 | public AnchorPositionY AnchorPositionY {
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67 | get { return anchorPositionY; }
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68 | set { anchorPositionY = value; }
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69 | }
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70 |
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71 | #region IShape Members
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72 |
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73 | public void Draw(Graphics graphics) {
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74 | int screenX = Transform.ToScreenX(x, Parent.Viewport, Parent.ClippingArea);
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75 | int screenY = Transform.ToScreenY(y, Parent.Viewport, Parent.ClippingArea);
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76 |
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77 | SizeF size = graphics.MeasureString(text, font);
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78 |
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79 | switch (AnchorPositionX) {
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80 | case AnchorPositionX.Left:
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81 | break;
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82 | case AnchorPositionX.Middle:
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83 | screenX -= (int)(size.Width/2);
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84 | break;
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85 | case AnchorPositionX.Right:
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86 | screenX -= (int)size.Width;
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87 | break;
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88 | default:
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89 | throw new NotSupportedException("Unknown anchor position: " + AnchorPositionX);
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90 | }
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91 |
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92 | switch (AnchorPositionY) {
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93 | case AnchorPositionY.Top:
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94 | break;
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95 | case AnchorPositionY.Middle:
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96 | screenY -= (int)(size.Height/2);
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97 | break;
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98 | case AnchorPositionY.Bottom:
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99 | screenY -= (int)size.Height;
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100 | break;
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101 | default:
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102 | throw new NotSupportedException("Unknown anchor position: " + AnchorPositionX);
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103 | }
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104 |
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105 | graphics.DrawString(text, font, brush, screenX, screenY);
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106 | }
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107 |
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108 | public RectangleD BoundingBox {
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109 | get { return RectangleD.Empty; }
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110 | }
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111 |
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112 | public RectangleD ClippingArea {
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113 | get { return Parent.ClippingArea; }
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114 | }
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115 |
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116 | public Rectangle Viewport {
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117 | get { return Parent.Viewport; }
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118 | }
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119 |
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120 | public IShape Parent {
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121 | get { return parent; }
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122 | set { parent = value; }
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123 | }
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124 |
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125 | #endregion
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126 | }
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127 | } |
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