source: branches/2839_HiveProjectManagement/HeuristicLab.Core.Views/3.3/OperatorGraphView.cs @ 16057

Last change on this file since 16057 was 16057, checked in by jkarder, 16 months ago

#2839:

File size: 5.6 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2018 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System;
23using System.ComponentModel;
24using System.Drawing;
25using System.Windows.Forms;
26using HeuristicLab.MainForm;
27
28namespace HeuristicLab.Core.Views {
29  /// <summary>
30  /// The visual representation of an <see cref="OperatorGraph"/>.
31  /// </summary>
32  [View("OperatorGraph View (Tree)")]
33  [Content(typeof(OperatorGraph), false)]
34  public partial class OperatorGraphView : ItemView {
35    /// <summary>
36    /// Gets or sets the operator graph to represent visually.
37    /// </summary>
38    /// <remarks>Uses property <see cref="ViewBase.Item"/> of base class <see cref="ViewBase"/>.
39    /// No own data storage present.</remarks>
40    public new OperatorGraph Content {
41      get { return (OperatorGraph)base.Content; }
42      set { base.Content = value; }
43    }
44
45    /// <summary>
46    /// Initializes a new instance of <see cref="OperatorGraphView"/> with caption "Operator Graph".
47    /// </summary>
48    public OperatorGraphView() {
49      InitializeComponent();
50    }
51
52    /// <summary>
53    /// Removes the eventhandlers from the underlying <see cref="IOperatorGraph"/>.
54    /// </summary>
55    /// <remarks>Calls <see cref="ViewBase.RemoveItemEvents"/> of base class <see cref="ViewBase"/>.</remarks>
56    protected override void DeregisterContentEvents() {
57      Content.InitialOperatorChanged -= new EventHandler(Content_InitialOperatorChanged);
58      base.DeregisterContentEvents();
59    }
60
61    /// <summary>
62    /// Adds eventhandlers to the underlying <see cref="IOperatorGraph"/>.
63    /// </summary>
64    /// <remarks>Calls <see cref="ViewBase.AddItemEvents"/> of base class <see cref="ViewBase"/>.</remarks>
65    protected override void RegisterContentEvents() {
66      base.RegisterContentEvents();
67      Content.InitialOperatorChanged += new EventHandler(Content_InitialOperatorChanged);
68    }
69
70    /// <summary>
71    /// Updates all controls with the latest data of the model.
72    /// </summary>
73    /// <remarks>Calls <see cref="ViewBase.UpdateControls"/> of base class <see cref="ViewBase"/>.</remarks>
74    protected override void OnContentChanged() {
75      base.OnContentChanged();
76      operatorsView.Content = null;
77      operatorTreeView.Content = null;
78      if (Content != null) {
79        operatorsView.Content = Content.Operators;
80        MarkInitialOperator();
81        operatorTreeView.Content = Content.InitialOperator;
82      }
83    }
84
85    protected override void SetEnabledStateOfControls() {
86      base.SetEnabledStateOfControls();
87      operatorsView.Enabled = Content != null;
88      operatorTreeView.Enabled = Content != null;
89      operatorsContextMenuStrip.Enabled = Content != null && !ReadOnly;
90    }
91
92    protected virtual void MarkInitialOperator() {
93      foreach (ListViewItem item in operatorsView.ItemsListView.Items) {
94        if ((Content.InitialOperator != null) && (((IOperator)item.Tag) == Content.InitialOperator))
95          item.Font = new Font(operatorsView.ItemsListView.Font, FontStyle.Bold);
96        else
97          item.Font = operatorsView.ItemsListView.Font;
98      }
99    }
100
101    #region Operator Tree View Events
102    protected virtual void operatorTreeView_SelectedOperatorChanged(object sender, EventArgs e) {
103      foreach (ListViewItem item in operatorsView.ItemsListView.Items)
104        item.Selected = item.Tag == operatorTreeView.SelectedOperator;
105    }
106    #endregion
107
108    #region Context Menu Events
109    protected virtual void operatorsView_Load(object sender, EventArgs e) {
110      operatorsView.ItemsListView.ContextMenuStrip = operatorsContextMenuStrip;
111    }
112    protected virtual void operatorsContextMenuStrip_Opening(object sender, CancelEventArgs e) {
113      initialOperatorToolStripMenuItem.Enabled = false;
114      initialOperatorToolStripMenuItem.Checked = false;
115      if (operatorsView.ItemsListView.SelectedItems.Count == 1) {
116        IOperator op = (IOperator)operatorsView.ItemsListView.SelectedItems[0].Tag;
117        initialOperatorToolStripMenuItem.Enabled = true;
118        initialOperatorToolStripMenuItem.Tag = op;
119        if (op == Content.InitialOperator)
120          initialOperatorToolStripMenuItem.Checked = true;
121      }
122    }
123    protected virtual void initialOperatorToolStripMenuItem_Click(object sender, EventArgs e) {
124      if (initialOperatorToolStripMenuItem.Checked)
125        Content.InitialOperator = (IOperator)initialOperatorToolStripMenuItem.Tag;
126      else
127        Content.InitialOperator = null;
128    }
129    #endregion
130
131    #region Content Events
132    protected virtual void Content_InitialOperatorChanged(object sender, EventArgs e) {
133      if (InvokeRequired)
134        Invoke(new EventHandler(Content_InitialOperatorChanged), sender, e);
135      else {
136        MarkInitialOperator();
137        operatorTreeView.Content = Content.InitialOperator;
138      }
139    }
140    #endregion
141  }
142}
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