1 | #region License Information |
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2 | /* HeuristicLab |
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3 | * Copyright (C) 2002-2010 Heuristic and Evolutionary Algorithms Laboratory (HEAL) |
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4 | * |
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5 | * This file is part of HeuristicLab. |
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6 | * |
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7 | * HeuristicLab is free software: you can redistribute it and/or modify |
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8 | * it under the terms of the GNU General Public License as published by |
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9 | * the Free Software Foundation, either version 3 of the License, or |
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10 | * (at your option) any later version. |
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11 | * |
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12 | * HeuristicLab is distributed in the hope that it will be useful, |
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 | * GNU General Public License for more details. |
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16 | * |
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17 | * You should have received a copy of the GNU General Public License |
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18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>. |
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19 | */ |
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20 | #endregion |
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21 | |
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22 | using System; |
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23 | using System.Collections.Generic; |
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24 | using System.Text; |
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25 | using System.Drawing; |
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26 | using System.Drawing.Drawing2D; |
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27 | using System.Windows.Forms; |
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28 | |
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29 | namespace HeuristicLab.Visualization { |
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30 | public abstract class RectangularPrimitiveBase : PrimitiveBase { |
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31 | protected IGroup selectionRectangles; |
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32 | |
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33 | private PointD myLowerLeft; |
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34 | public virtual PointD LowerLeft { |
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35 | get { return myLowerLeft; } |
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36 | } |
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37 | private PointD myUpperRight; |
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38 | public virtual PointD UpperRight { |
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39 | get { return myUpperRight; } |
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40 | } |
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41 | public virtual SizeD Size { |
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42 | get { return new SizeD(UpperRight.X - LowerLeft.X, UpperRight.Y - LowerLeft.Y); } |
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43 | } |
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44 | |
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45 | protected RectangularPrimitiveBase(IChart chart, PointD lowerLeft, PointD upperRight) |
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46 | : base(chart) { |
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47 | selectionRectangles = new Group(chart); |
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48 | SetPosition(lowerLeft, upperRight); |
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49 | } |
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50 | protected RectangularPrimitiveBase(IChart chart, double x1, double y1, double x2, double y2) |
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51 | : this(chart, new PointD(x1, y1), new PointD(x2, y2)) { |
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52 | } |
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53 | protected RectangularPrimitiveBase(IChart chart, PointD lowerLeft, PointD upperRight, Pen pen, Brush brush) |
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54 | : base(chart, pen, brush) { |
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55 | selectionRectangles = new Group(chart); |
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56 | SetPosition(lowerLeft, upperRight); |
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57 | } |
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58 | protected RectangularPrimitiveBase(IChart chart, double x1, double y1, double x2, double y2, Pen pen, Brush brush) |
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59 | : this(chart, new PointD(x1, y1), new PointD(x2, y2), pen, brush) { |
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60 | } |
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61 | |
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62 | public virtual void SetPosition(PointD lowerLeft, PointD upperRight) { |
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63 | if ((lowerLeft.X > upperRight.X) || (lowerLeft.Y > upperRight.Y)) |
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64 | throw new ArgumentException("Lower left point is greater than upper right point"); |
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65 | |
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66 | myLowerLeft = lowerLeft; |
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67 | myUpperRight = upperRight; |
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68 | OnUpdate(); |
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69 | } |
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70 | public void SetPosition(double x1, double y1, double x2, double y2) { |
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71 | SetPosition(new PointD(x1, y1), new PointD(x2, y2)); |
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72 | } |
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73 | public override void Move(Offset delta) { |
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74 | SetPosition(LowerLeft + delta, UpperRight + delta); |
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75 | } |
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76 | |
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77 | public override bool ContainsPoint(PointD point) { |
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78 | if (Selected) { |
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79 | if (selectionRectangles.ContainsPoint(point)) return true; |
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80 | } |
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81 | return false; |
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82 | } |
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83 | |
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84 | public override void MouseDrag(PointD point, Offset offset, MouseButtons button) { |
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85 | if (button == MouseButtons.Left) { |
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86 | if (Selected) { |
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87 | if (selectionRectangles.ContainsPoint(point)) { |
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88 | SelectionRectangle rect = (SelectionRectangle)selectionRectangles.GetPrimitive(point); |
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89 | PointD point1 = PointD.Empty; |
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90 | PointD point2 = PointD.Empty; |
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91 | if (rect.Point == LowerLeft) { |
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92 | point1 = LowerLeft + offset; |
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93 | point2 = UpperRight; |
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94 | } else if (rect.Point == UpperRight) { |
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95 | point1 = LowerLeft; |
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96 | point2 = UpperRight + offset; |
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97 | } else if ((rect.Point.X == LowerLeft.X) && (rect.Point.Y == UpperRight.Y)) { |
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98 | point1 = new PointD(LowerLeft.X + offset.DX, LowerLeft.Y); |
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99 | point2 = new PointD(UpperRight.X, UpperRight.Y + offset.DY); |
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100 | } else if ((rect.Point.X == UpperRight.X) && (rect.Point.Y == LowerLeft.Y)) { |
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101 | point1 = new PointD(LowerLeft.X, LowerLeft.Y + offset.DY); |
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102 | point2 = new PointD(UpperRight.X + offset.DX, UpperRight.Y); |
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103 | } |
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104 | SetPosition(Math.Min(point1.X, point2.X), Math.Min(point1.Y, point2.Y), |
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105 | Math.Max(point1.X, point2.X), Math.Max(point1.Y, point2.Y)); |
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106 | } else { |
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107 | base.MouseDrag(point, offset, button); |
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108 | } |
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109 | } |
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110 | } |
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111 | } |
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112 | |
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113 | public override Cursor GetCursor(PointD point) { |
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114 | if (Selected) { |
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115 | Cursor cursor = selectionRectangles.GetCursor(point); |
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116 | if (cursor != null) return cursor; |
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117 | } |
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118 | return base.GetCursor(point); |
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119 | } |
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120 | |
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121 | public override void PostDraw(Graphics graphics) { |
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122 | selectionRectangles.Clear(); |
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123 | if (Selected) { |
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124 | Pen pen = new Pen(Color.LightGray, 3); |
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125 | pen.DashStyle = DashStyle.Dash; |
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126 | Point p = Chart.TransformWorldToPixel(new PointD(LowerLeft.X, LowerLeft.Y + Size.Height)); |
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127 | Size s = Chart.TransformWorldToPixel(Size); |
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128 | graphics.DrawRectangle(pen, p.X, p.Y, s.Width, s.Height); |
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129 | selectionRectangles.Add(new SelectionRectangle(Chart, UpperRight.X, LowerLeft.Y, Cursors.SizeNWSE)); |
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130 | selectionRectangles.Add(new SelectionRectangle(Chart, LowerLeft.X, LowerLeft.Y, Cursors.SizeNESW)); |
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131 | selectionRectangles.Add(new SelectionRectangle(Chart, UpperRight.X, UpperRight.Y, Cursors.SizeNESW)); |
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132 | selectionRectangles.Add(new SelectionRectangle(Chart, LowerLeft.X, UpperRight.Y, Cursors.SizeNWSE)); |
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133 | |
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134 | selectionRectangles.Draw(graphics); |
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135 | } |
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136 | } |
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137 | } |
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138 | } |
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