[13077] | 1 | #region License Information
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| 2 | /* HeuristicLab
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| 3 | * Copyright (C) 2002-2015 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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[13135] | 25 | using HeuristicLab.Common;
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[13077] | 26 | using HeuristicLab.Core.Networks;
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| 27 | using HeuristicLab.Visualization;
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| 28 |
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| 29 | namespace HeuristicLab.Networks.Views.NetworkVisualization {
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[13135] | 30 | [Primitive(typeof(INode), true)]
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| 31 | public class NodeRectangle : Visualization.Rectangle, INetworkItemPrimitive<INode> {
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| 32 | protected readonly Dictionary<IPort, IPrimitive> port2primitive = new Dictionary<IPort, IPrimitive>();
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| 33 | protected readonly IGroup portRectangles;
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[13077] | 34 |
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| 35 | protected bool IgnoreVisualPropertiesChanges { get; set; }
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| 36 |
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[13135] | 37 | protected INode networkItem;
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| 38 | public INode NetworkItem {
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[13077] | 39 | get { return networkItem; }
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| 40 | set {
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| 41 | if (networkItem == value) return;
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| 42 | if (networkItem != null) DeregisterNetworkItemEvents();
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| 43 | networkItem = value;
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| 44 | if (networkItem != null) RegisterNetworkItemEvents();
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| 45 | LoadVisualProperties();
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| 46 | OnNetworkItemChanged();
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| 47 | }
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| 48 | }
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| 49 |
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[13135] | 50 | public NodeRectangle(IChart chart, INode node)
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| 51 | : base(chart, PointD.Empty, PointD.Empty) {
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[13077] | 52 | NetworkItem = node;
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| 53 |
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| 54 | portRectangles = new Group(chart);
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| 55 | foreach (var port in node.Ports) {
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[13135] | 56 | var portPrimitive = PrimitiveAttribute.CreateDefaultPrimitive(port.GetType(), chart, port, node); // TODO: port.Parent != node
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| 57 | port2primitive.Add(port, portPrimitive);
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| 58 | portRectangles.Add(portPrimitive);
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[13077] | 59 | }
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| 60 | portRectangles.RedrawRequired += (sender, args) => OnRedrawRequired();
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| 61 | }
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| 62 |
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| 63 | protected virtual void RegisterNetworkItemEvents() {
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[13135] | 64 | networkItem.NameChanged += NetworkItem_NameChanged;
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[13077] | 65 | if (networkItem.VisualProperties != null) {
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| 66 | networkItem.VisualProperties.Changed += VisualProperties_Changed;
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| 67 | }
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| 68 | if (networkItem.Ports != null) {
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| 69 | networkItem.Ports.ItemsAdded += Ports_ItemsAdded;
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| 70 | networkItem.Ports.ItemsRemoved += Ports_ItemsRemoved;
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| 71 | }
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| 72 | }
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| 73 |
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| 74 | protected virtual void DeregisterNetworkItemEvents() {
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[13135] | 75 | networkItem.NameChanged -= NetworkItem_NameChanged;
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[13077] | 76 | if (networkItem.VisualProperties != null) {
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| 77 | networkItem.VisualProperties.Changed -= VisualProperties_Changed;
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| 78 | }
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| 79 | if (networkItem.Ports != null) {
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| 80 | networkItem.Ports.ItemsAdded -= Ports_ItemsAdded;
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| 81 | networkItem.Ports.ItemsRemoved -= Ports_ItemsRemoved;
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| 82 | }
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| 83 | }
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| 84 |
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| 85 | #region Overrides
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| 86 | public override void SetPosition(PointD lowerLeft, PointD upperRight) {
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[13135] | 87 | base.SetPosition(lowerLeft, upperRight);
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| 88 | SaveVisualProperties();
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[13077] | 89 | }
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| 90 |
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| 91 | public override void Draw(Graphics graphics) {
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| 92 | base.Draw(graphics);
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| 93 |
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| 94 | var p = Chart.TransformWorldToPixel(new PointD(LowerLeft.X, LowerLeft.Y + Size.Height));
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| 95 |
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[13135] | 96 | if (networkItem != null) {
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| 97 | using (var font = new Font(FontFamily.GenericSansSerif, (float)Math.Round(8.25 * Chart.WorldToPixelRatio.Width))) {
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| 98 | graphics.DrawString(networkItem.Name, font, Brushes.Black, p.X + 5, p.Y + 5);
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| 99 | }
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[13077] | 100 | }
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| 101 |
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| 102 | portRectangles.Draw(graphics);
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| 103 | }
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| 104 | #endregion
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| 105 |
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[13135] | 106 | public IPrimitive GetPortPrimitive(IPort name) {
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| 107 | IPrimitive portPrimitive;
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| 108 | port2primitive.TryGetValue(name, out portPrimitive);
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| 109 | return portPrimitive;
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[13077] | 110 | }
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| 111 |
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| 112 | #region Events
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| 113 | public event EventHandler NetworkItemChanged;
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| 114 | protected virtual void OnNetworkItemChanged() {
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| 115 | var handler = NetworkItemChanged;
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| 116 | if (handler != null) handler(this, EventArgs.Empty);
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| 117 | }
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| 118 | #endregion
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| 119 |
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| 120 | #region Event Handlers
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| 121 | private void VisualProperties_Changed(object sender, EventArgs e) {
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| 122 | if (IgnoreVisualPropertiesChanges) return;
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[13135] | 123 |
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[13077] | 124 | LoadVisualProperties();
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| 125 | }
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| 126 |
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[13135] | 127 | private void NetworkItem_NameChanged(object sender, EventArgs e) { OnRedrawRequired(); }
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| 128 |
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[13077] | 129 | private void Ports_ItemsAdded(object sender, Collections.CollectionItemsChangedEventArgs<IPort> e) {
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| 130 | foreach (var port in e.Items) {
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[13135] | 131 | var portRectangle = PrimitiveAttribute.CreateDefaultPrimitive(port.GetType(), Chart, port, networkItem);
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| 132 | port2primitive.Add(port, portRectangle);
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[13077] | 133 | portRectangles.Add(portRectangle);
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| 134 | }
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| 135 |
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[13135] | 136 | OnRedrawRequired();
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[13077] | 137 | }
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| 138 |
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| 139 | private void Ports_ItemsRemoved(object sender, Collections.CollectionItemsChangedEventArgs<IPort> e) {
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| 140 | foreach (var port in e.Items) {
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[13135] | 141 | var portRectangle = port2primitive[port];
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| 142 | port2primitive.Remove(port);
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[13077] | 143 | portRectangles.Remove(portRectangle);
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| 144 | }
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| 145 |
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| 146 | OnRedrawRequired();
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| 147 | }
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| 148 | #endregion
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| 149 |
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| 150 | #region Helpers
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[13135] | 151 | private INodeVisualProperties CreateDefaultVisualProperties() {
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[13077] | 152 | var offset = Chart.UpperRight - Chart.LowerLeft;
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| 153 | var center = new PointD(Chart.LowerLeft.X + offset.DX * 0.5, Chart.LowerLeft.Y + offset.DY * 0.5);
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| 154 | var size = Chart.TransformPixelToWorld(new Size(200, 100));
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[13135] | 155 | var lowerLeft = center - new Offset(size.Width * 0.5, size.Height * 0.5);
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| 156 | var upperRight = center + new Offset(size.Width * 0.5, size.Height * 0.5);
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| 157 | return new NodeVisualProperties(new Point2D<double>(lowerLeft.X, lowerLeft.Y), new Point2D<double>(upperRight.X, upperRight.Y));
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| 158 | }
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[13077] | 159 |
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[13135] | 160 | private void LoadVisualProperties() {
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| 161 | if (networkItem.VisualProperties == null)
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| 162 | networkItem.VisualProperties = CreateDefaultVisualProperties();
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[13077] | 163 |
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[13135] | 164 | var vp = (INodeVisualProperties)networkItem.VisualProperties;
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| 165 | SetPosition(new PointD(vp.LowerLeft.X, vp.LowerLeft.Y), new PointD(vp.UpperRight.X, vp.UpperRight.Y));
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[13077] | 166 | }
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| 167 |
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| 168 | private void SaveVisualProperties() {
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| 169 | if (networkItem == null) return;
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| 170 |
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[13135] | 171 | var vp = (INodeVisualProperties)networkItem.VisualProperties;
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[13077] | 172 |
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| 173 | IgnoreVisualPropertiesChanges = true;
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| 174 | try {
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[13135] | 175 | vp.LowerLeft = new Point2D<double>(LowerLeft.X, LowerLeft.Y);
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| 176 | vp.UpperRight = new Point2D<double>(UpperRight.X, UpperRight.Y);
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[13077] | 177 | } finally { IgnoreVisualPropertiesChanges = false; }
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| 178 | }
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| 179 | #endregion
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| 180 | }
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| 181 | }
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