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.Collections.ObjectModel;
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25 | using System.Drawing;
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26 | using System.Linq;
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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 class Group : PrimitiveBase, IGroup {
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31 | private LinkedList<IPrimitive> myPrimitives;
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32 | private HashSet<IPrimitive> myPrimitivesLookup;
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33 | public virtual ReadOnlyCollection<IPrimitive> Primitives {
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34 | get { return new ReadOnlyCollection<IPrimitive>(new List<IPrimitive>(myPrimitives)); }
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35 | }
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36 | public virtual ReadOnlyCollection<IPrimitive> SelectedPrimitives {
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37 | get {
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38 | List<IPrimitive> selected = new List<IPrimitive>();
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39 | foreach (IPrimitive primitive in myPrimitives) {
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40 | if (primitive.Selected) selected.Add(primitive);
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41 | }
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42 | return new ReadOnlyCollection<IPrimitive>(selected);
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43 | }
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44 | }
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45 | public override bool Selected {
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46 | get { return base.Selected; }
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47 | set {
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48 | bool updateEnabled = UpdateEnabled;
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49 | UpdateEnabled = false;
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50 | foreach (IPrimitive primitive in myPrimitives)
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51 | primitive.Selected = value;
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52 | UpdateEnabled = updateEnabled;
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53 | base.Selected = value;
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54 | }
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55 | }
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56 |
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57 | public Group(IChart chart)
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58 | : base(chart) {
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59 | myPrimitives = new LinkedList<IPrimitive>();
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60 | myPrimitivesLookup = new HashSet<IPrimitive>();
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61 | }
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62 |
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63 | public virtual void Add(IPrimitive primitive) {
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64 | if (Contains(primitive))
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65 | throw new ArgumentException("Primitive already added");
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66 |
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67 | myPrimitives.AddFirst(primitive);
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68 | myPrimitivesLookup.Add(primitive);
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69 | primitive.Group = this;
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70 | primitive.Update += new EventHandler(primitive_Update);
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71 | OnUpdate();
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72 | }
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73 | public virtual void AddRange(IEnumerable<IPrimitive> primitives) {
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74 | foreach (IPrimitive primitive in primitives) {
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75 | if (Contains(primitive))
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76 | throw new ArgumentException("Primitive already added");
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77 |
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78 | myPrimitives.AddFirst(primitive);
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79 | myPrimitivesLookup.Add(primitive);
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80 | primitive.Group = this;
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81 | primitive.Update += new EventHandler(primitive_Update);
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82 | }
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83 | OnUpdate();
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84 | }
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85 | public virtual bool Contains(IPrimitive primitive) {
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86 | return myPrimitivesLookup.Contains(primitive);
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87 | }
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88 | public virtual bool Remove(IPrimitive primitive) {
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89 | if (myPrimitives.Remove(primitive)) {
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90 | primitive.Group = null;
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91 | primitive.Update -= new EventHandler(primitive_Update);
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92 | OnUpdate();
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93 | return true;
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94 | } else {
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95 | return false;
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96 | }
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97 | }
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98 | public virtual void Clear() {
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99 | foreach (IPrimitive primitive in myPrimitives) {
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100 | primitive.Group = null;
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101 | primitive.Update -= new EventHandler(primitive_Update);
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102 | }
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103 | myPrimitives.Clear();
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104 | myPrimitivesLookup.Clear();
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105 | OnUpdate();
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106 | }
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107 |
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108 | public virtual IPrimitive GetPrimitive(PointD point) {
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109 | return myPrimitives.FirstOrDefault(primitive => primitive.ContainsPoint(point));
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110 | }
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111 |
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112 | public IPrimitive GetPrimitive(double x, double y) {
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113 | return GetPrimitive(new PointD(x, y));
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114 | }
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115 | public virtual IList<IPrimitive> GetAllPrimitives(PointD point) {
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116 | var primitives = new List<IPrimitive>();
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117 | foreach (var primitive in myPrimitives.Where(primitive => primitive.ContainsPoint(point))) {
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118 | primitives.Add(primitive);
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119 | var group = primitive as IGroup;
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120 | if (group != null)
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121 | primitives.AddRange(group.Primitives);
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122 | }
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123 | return primitives;
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124 | }
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125 | public IList<IPrimitive> GetAllPrimitives(double x, double y) {
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126 | return GetAllPrimitives(new PointD(x, y));
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127 | }
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128 |
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129 | public override void Move(Offset delta) {
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130 | bool updateEnabled = UpdateEnabled;
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131 | UpdateEnabled = false;
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132 | foreach (IPrimitive primitive in myPrimitives)
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133 | primitive.Move(delta);
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134 | UpdateEnabled = updateEnabled;
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135 | OnUpdate();
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136 | }
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137 |
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138 | public override bool ContainsPoint(PointD point) {
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139 | return GetPrimitive(point) != null;
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140 | }
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141 |
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142 | public override Cursor GetCursor(PointD point) {
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143 | IPrimitive primitive = GetPrimitive(point);
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144 | if (primitive != null) return primitive.GetCursor(point);
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145 | else return base.GetCursor(point);
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146 | }
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147 | public override string GetToolTipText(PointD point) {
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148 | IPrimitive primitive = GetPrimitive(point);
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149 | if (primitive != null) return primitive.GetToolTipText(point);
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150 | else return base.GetToolTipText(point);
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151 | }
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152 |
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153 | public void OneLayerUp(IPrimitive primitive) {
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154 | if (!Contains(primitive))
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155 | throw new ArgumentException("Primitive not found");
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156 |
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157 | var curr = myPrimitives.Find(primitive);
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158 | if (curr == null) return;
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159 | var prev = curr.Previous;
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160 | var temp = curr.Value;
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161 | curr.Value = prev.Value;
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162 | prev.Value = temp;
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163 |
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164 | OnUpdate();
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165 | }
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166 |
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167 | public void OneLayerDown(IPrimitive primitive) {
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168 | if (!Contains(primitive))
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169 | throw new ArgumentException("Primitive not found");
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170 |
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171 | var curr = myPrimitives.Find(primitive);
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172 | if (curr == null) return;
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173 | var next = curr.Next;
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174 | var temp = curr.Value;
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175 | curr.Value = next.Value;
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176 | next.Value = temp;
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177 | }
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178 | public void IntoForeground(IPrimitive primitive) {
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179 | if (!Contains(primitive))
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180 | throw new ArgumentException("Primitive not found");
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181 |
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182 | myPrimitives.Remove(primitive);
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183 | myPrimitives.AddFirst(primitive);
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184 | OnUpdate();
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185 | }
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186 | public void IntoBackground(IPrimitive primitive) {
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187 | if (!Contains(primitive))
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188 | throw new ArgumentException("Primitive not found");
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189 |
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190 | myPrimitives.Remove(primitive);
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191 | myPrimitives.AddLast(primitive);
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192 | OnUpdate();
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193 | }
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194 |
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195 | public override void Draw(Graphics graphics) {
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196 | var current = myPrimitives.Last;
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197 | while (current != null) {
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198 | var primitive = current.Value;
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199 | primitive.PreDraw(graphics);
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200 | primitive.Draw(graphics);
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201 | primitive.PostDraw(graphics);
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202 | current = current.Previous;
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203 | }
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204 | }
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205 |
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206 | private void primitive_Update(object sender, EventArgs e) {
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207 | OnUpdate();
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208 | }
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209 | }
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210 | }
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