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.Drawing;
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25 | using System.Drawing.Drawing2D;
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26 | using System.Linq;
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27 | using HeuristicLab.Netron;
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28 | using Netron.Diagramming.Core;
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29 |
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30 |
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31 | namespace HeuristicLab.Operators.Views.GraphVisualization {
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32 | public class OperatorShape : ComplexShapeBase {
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33 | private static int LABEL_HEIGHT = 16;
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34 | private static int LABEL_WIDTH = 180;
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35 | private static int LABEL_SPACING = 3;
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36 | private int headerHeight = 30;
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37 |
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38 | private ExpandableIconMaterial expandIconMaterial;
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39 | public OperatorShape()
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40 | : base() {
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41 | this.Resizable = false;
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42 | this.additionalConnectors = new List<IConnector>();
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43 | this.labels = new List<string>();
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44 | }
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45 |
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46 | public override string EntityName {
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47 | get { return "Operator Shape"; }
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48 | }
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49 |
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50 | public bool Collapsed {
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51 | get { return this.expandIconMaterial.Collapsed; }
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52 | set {
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53 | if (this.expandIconMaterial.Collapsed != value)
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54 | this.expandIconMaterial.Collapsed = value;
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55 | }
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56 | }
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57 |
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58 | private Color lineColor;
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59 | public Color LineColor {
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60 | get { return this.lineColor; }
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61 | set { this.lineColor = value; }
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62 | }
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63 |
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64 | private float lineWidth;
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65 | public float LineWidth {
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66 | get { return this.lineWidth; }
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67 | set { this.lineWidth = value; }
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68 | }
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69 |
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70 | private Color color;
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71 | public Color Color {
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72 | get { return this.color; }
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73 | set { this.color = value; }
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74 | }
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75 |
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76 | private string title;
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77 | public string Title {
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78 | get { return title; }
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79 | set { title = value; }
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80 | }
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81 |
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82 | private IconMaterial iconMaterial;
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83 | public Bitmap Icon {
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84 | get { return this.iconMaterial.Icon; }
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85 | set {
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86 | this.iconMaterial.Icon = value;
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87 | this.iconMaterial.Transform(new Rectangle(new Point(Rectangle.X + 5, Rectangle.Y + 5), this.iconMaterial.Icon.Size));
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88 | }
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89 | }
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90 |
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91 | #region additional connectors
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92 | private List<IConnector> additionalConnectors;
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93 | public IEnumerable<string> AdditionalConnectorNames {
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94 | get { return this.additionalConnectors.Select(c => c.Name); }
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95 | }
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96 |
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97 | private IConnector predecessor;
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98 | public IConnector Predecessor {
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99 | get { return this.predecessor; }
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100 | }
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101 |
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102 | private IConnector successor;
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103 | public IConnector Successor {
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104 | get { return this.successor; }
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105 | }
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106 |
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107 | private IConnector CreateConnector(string connectorName, Point location) {
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108 | Connector connector = new Connector(location, this.Model);
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109 | connector.ConnectorStyle = ConnectorStyle.Square;
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110 | connector.Parent = this;
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111 | connector.Name = connectorName;
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112 | return connector;
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113 | }
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114 |
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115 | public void AddConnector(string connectorName) {
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116 | IConnector connector = this.CreateConnector(connectorName, this.BottomRightCorner);
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117 |
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118 | this.additionalConnectors.Add(connector);
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119 | this.Connectors.Add(connector);
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120 | this.UpdateConnectorLocation();
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121 | }
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122 |
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123 | public void RemoveConnector(string connectorName) {
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124 | IConnector connector = this.additionalConnectors.Where(c => c.Name == connectorName).FirstOrDefault();
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125 | if (connector != null) {
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126 | this.additionalConnectors.Remove(connector);
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127 | this.Connectors.Remove(connector);
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128 | this.UpdateConnectorLocation();
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129 | }
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130 | }
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131 |
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132 | private void UpdateConnectorLocation() {
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133 | if (this.additionalConnectors.Count == 0)
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134 | return;
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135 |
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136 | int spacing = this.Rectangle.Width / this.additionalConnectors.Count;
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137 | int margin = spacing / 2;
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138 | int posX = margin + this.Rectangle.X;
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139 | for (int i = 0; i < this.additionalConnectors.Count; i++) {
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140 | this.additionalConnectors[i].MoveBy(new Point(posX - this.additionalConnectors[i].Point.X, 0));
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141 | posX += spacing;
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142 | }
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143 | }
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144 | #endregion
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145 |
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146 | #region label material
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147 | private List<string> labels;
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148 | public IEnumerable<string> Labels {
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149 | get { return this.labels; }
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150 | }
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151 |
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152 | public void UpdateLabels(IEnumerable<string> labels) {
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153 | this.labels = new List<string>(labels);
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154 | this.expandIconMaterial.Visible = this.labels.Count != 0;
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155 | this.UpdateLabels();
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156 | }
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157 | #endregion
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158 |
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159 | private void expandIconMaterial_OnExpand(object sender, EventArgs e) {
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160 | this.UpdateLabels();
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161 | }
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162 |
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163 | private void expandIconMaterial_OnCollapse(object sender, EventArgs e) {
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164 | this.UpdateLabels();
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165 | }
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166 |
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167 | private Size CalculateSize() {
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168 | int width = this.Rectangle.Width;
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169 | int height = headerHeight;
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170 | if (!Collapsed)
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171 | height += this.labels.Count * (LABEL_HEIGHT + LABEL_SPACING);
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172 | return new Size(width, height);
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173 | }
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174 |
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175 | private void UpdateLabels() {
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176 | Size newSize = CalculateSize();
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177 | if (this.Rectangle.Size != newSize) {
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178 | foreach (IConnector connector in this.additionalConnectors)
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179 | connector.MoveBy(new Point(0, newSize.Height - this.Rectangle.Height));
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180 | this.mRectangle = new Rectangle(this.Rectangle.Location, newSize);
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181 | this.Invalidate();
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182 | this.RaiseOnChange(this, new EntityEventArgs(this));
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183 | }
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184 | }
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185 |
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186 | protected override void Initialize() {
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187 | base.Initialize();
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188 |
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189 | //the initial size
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190 | this.Transform(0, 0, 200, headerHeight);
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191 | this.color = Color.LightBlue;
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192 |
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193 | this.iconMaterial = new IconMaterial();
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194 | this.iconMaterial.Gliding = false;
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195 | this.Children.Add(iconMaterial);
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196 |
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197 | Bitmap expandBitmap = new Bitmap(HeuristicLab.Common.Resources.VSImageLibrary.Expand);
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198 | Bitmap collapseBitmap = new Bitmap(HeuristicLab.Common.Resources.VSImageLibrary.Collapse);
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199 | this.expandIconMaterial = new ExpandableIconMaterial(expandBitmap, collapseBitmap);
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200 | this.expandIconMaterial.Gliding = false;
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201 | this.expandIconMaterial.Transform(new Rectangle(new Point(Rectangle.Right - 20, Rectangle.Y + 7), expandIconMaterial.Icon.Size));
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202 | this.expandIconMaterial.Visible = false;
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203 | this.expandIconMaterial.OnExpand += new EventHandler(expandIconMaterial_OnExpand);
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204 | this.expandIconMaterial.OnCollapse += new EventHandler(expandIconMaterial_OnCollapse);
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205 | this.Children.Add(expandIconMaterial);
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206 |
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207 | this.predecessor = this.CreateConnector(OperatorShapeInfoFactory.PredecessorConnector, new Point(Rectangle.Left, Center.Y));
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208 | this.Connectors.Add(predecessor);
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209 |
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210 | this.successor = this.CreateConnector(OperatorShapeInfoFactory.SuccessorConnector, (new Point(Rectangle.Right, Center.Y)));
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211 | this.Connectors.Add(successor);
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212 | }
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213 |
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214 | public override void Paint(Graphics g) {
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215 | base.Paint(g);
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216 |
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217 | g.SmoothingMode = SmoothingMode.HighQuality;
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218 |
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219 | Pen pen = new Pen(lineColor, lineWidth);
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220 |
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221 | SizeF titleSize = g.MeasureString(this.Title, ArtPalette.DefaultBoldFont, Rectangle.Width - 45);
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222 | if (titleSize.Height + 10 > Rectangle.Height) {
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223 | headerHeight = (int)titleSize.Height + 10;
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224 | this.UpdateLabels();
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225 | }
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226 |
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227 | GraphicsPath path = new GraphicsPath();
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228 | path.AddArc(Rectangle.X, Rectangle.Y, 20, 20, -180, 90);
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229 | path.AddLine(Rectangle.X + 10, Rectangle.Y, Rectangle.X + Rectangle.Width - 10, Rectangle.Y);
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230 | path.AddArc(Rectangle.X + Rectangle.Width - 20, Rectangle.Y, 20, 20, -90, 90);
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231 | path.AddLine(Rectangle.X + Rectangle.Width, Rectangle.Y + 10, Rectangle.X + Rectangle.Width, Rectangle.Y + Rectangle.Height - 10);
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232 | path.AddArc(Rectangle.X + Rectangle.Width - 20, Rectangle.Y + Rectangle.Height - 20, 20, 20, 0, 90);
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233 | path.AddLine(Rectangle.X + Rectangle.Width - 10, Rectangle.Y + Rectangle.Height, Rectangle.X + 10, Rectangle.Y + Rectangle.Height);
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234 | path.AddArc(Rectangle.X, Rectangle.Y + Rectangle.Height - 20, 20, 20, 90, 90);
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235 | path.AddLine(Rectangle.X, Rectangle.Y + Rectangle.Height - 10, Rectangle.X, Rectangle.Y + 10);
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236 | //shadow
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237 | if (ArtPalette.EnableShadows) {
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238 | Region darkRegion = new Region(path);
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239 | darkRegion.Translate(5, 5);
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240 | g.FillRegion(ArtPalette.ShadowBrush, darkRegion);
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241 | }
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242 | //background
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243 | g.FillPath(Brush, path);
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244 |
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245 | using (LinearGradientBrush gradientBrush = new LinearGradientBrush(Rectangle.Location, new Point(Rectangle.X + Rectangle.Width, Rectangle.Y), this.Color, Color.White)) {
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246 | Region gradientRegion = new Region(path);
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247 | g.FillRegion(gradientBrush, gradientRegion);
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248 | }
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249 |
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250 | if (!this.Collapsed) {
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251 | TextStyle textStyle = new TextStyle(Color.Black, new Font("Arial", 7), StringAlignment.Near, StringAlignment.Near);
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252 | StringFormat stringFormat = textStyle.StringFormat;
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253 | stringFormat.Trimming = StringTrimming.EllipsisWord;
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254 | stringFormat.FormatFlags = StringFormatFlags.LineLimit;
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255 | Rectangle rect;
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256 |
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257 | for (int i = 0; i < this.labels.Count; i++) {
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258 | rect = new Rectangle(Rectangle.X + 25, Rectangle.Y + headerHeight + i * (LABEL_HEIGHT + LABEL_SPACING), LABEL_WIDTH, LABEL_HEIGHT);
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259 | g.DrawString(textStyle.GetFormattedText(this.labels[i]), textStyle.Font, textStyle.GetBrush(), rect, stringFormat);
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260 | }
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261 | }
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262 |
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263 | //the border
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264 | g.DrawPath(pen, path);
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265 |
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266 | //the title
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267 | g.DrawString(this.Title, ArtPalette.DefaultBoldFont, Brushes.Black, new Rectangle(Rectangle.X + 25, Rectangle.Y + 5, Rectangle.Width - 45, Rectangle.Height - 5));
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268 |
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269 |
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270 | //the material
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271 | foreach (IPaintable material in Children)
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272 | material.Paint(g);
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273 |
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274 | //the connectors
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275 | if (this.ShowConnectors) {
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276 | for (int k = 0; k < Connectors.Count; k++)
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277 | Connectors[k].Paint(g);
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278 | }
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279 | }
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280 | }
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281 | }
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