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.Linq;
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25 | using System.Windows.Forms;
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26 | using HeuristicLab.Common;
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27 | using HeuristicLab.MainForm;
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28 |
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29 | namespace HeuristicLab.Core.Views {
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30 | public sealed partial class ViewHost : UserControl {
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31 | private Type viewType;
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32 | public Type ViewType {
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33 | get { return this.viewType; }
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34 | set {
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35 | if (!ViewCanShowContent(value, content))
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36 | throw new ArgumentException(string.Format("View \"{0}\" cannot display content \"{1}\".",
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37 | value.GetPrettyName(),
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38 | content.GetType().GetPrettyName()));
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39 | viewType = value;
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40 | UpdateView();
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41 | }
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42 | }
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43 |
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44 | private object content;
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45 | public object Content {
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46 | get { return content; }
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47 | set {
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48 | if (value != content) {
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49 | content = value;
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50 | viewContextMenuStrip.Item = content;
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51 | Initialize();
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52 | }
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53 | }
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54 | }
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55 |
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56 | public ViewHost() {
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57 | InitializeComponent();
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58 | viewType = null;
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59 | content = null;
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60 | Initialize();
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61 | }
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62 |
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63 | private void Initialize() {
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64 | viewsLabel.Enabled = false;
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65 | viewsLabel.Visible = false;
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66 | viewContextMenuStrip.Enabled = false;
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67 | messageLabel.Visible = false;
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68 |
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69 | if (viewPanel.Controls.Count > 0) viewPanel.Controls[0].Dispose();
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70 | viewPanel.Controls.Clear();
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71 | viewPanel.Enabled = false;
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72 | viewPanel.Visible = false;
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73 |
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74 | if (Content != null) {
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75 | if (viewContextMenuStrip.Items.Count == 0) {
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76 | messageLabel.Visible = true;
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77 | } else {
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78 | viewsLabel.Enabled = true;
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79 | viewsLabel.Visible = true;
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80 | viewContextMenuStrip.Enabled = true;
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81 | messageLabel.Visible = false;
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82 | }
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83 |
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84 | if (!ViewCanShowContent(viewType, Content)) {
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85 | viewType = MainFormManager.GetDefaultViewType(Content.GetType());
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86 | if ((viewType == null) && (viewContextMenuStrip.Items.Count > 0)) // create first available view if default view is not available
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87 | viewType = (Type)viewContextMenuStrip.Items[0].Tag;
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88 | }
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89 | UpdateView();
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90 | }
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91 | }
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92 |
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93 | private void UpdateView() {
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94 | if (viewPanel.Controls.Count > 0) viewPanel.Controls[0].Dispose();
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95 | viewPanel.Controls.Clear();
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96 |
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97 | if (viewType == null || content == null)
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98 | return;
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99 |
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100 | if (!ViewCanShowContent(viewType, content))
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101 | throw new ArgumentException(string.Format("View \"{0}\" cannot display content \"{1}\".",
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102 | viewType.GetPrettyName(),
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103 | Content.GetType().GetPrettyName()));
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104 |
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105 | UpdateActiveMenuItem();
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106 | Control view = (Control)MainFormManager.CreateView(viewType, Content);
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107 | viewPanel.Controls.Add(view);
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108 | viewPanel.Tag = view;
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109 | view.Dock = DockStyle.Fill;
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110 | viewPanel.Enabled = true;
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111 | viewPanel.Visible = true;
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112 | }
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113 |
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114 | private void UpdateActiveMenuItem() {
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115 | foreach (KeyValuePair<Type, ToolStripMenuItem> item in viewContextMenuStrip.MenuItems) {
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116 | if (item.Key == viewType) {
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117 | item.Value.Checked = true;
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118 | item.Value.Enabled = false;
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119 | } else {
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120 | item.Value.Checked = false;
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121 | item.Value.Enabled = true;
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122 | }
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123 | }
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124 | }
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125 |
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126 | private bool ViewCanShowContent(Type viewType, object content) {
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127 | if (content == null) // every view can display null
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128 | return true;
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129 | if (viewType == null)
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130 | return false;
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131 | return ContentAttribute.CanViewType(viewType, Content.GetType()) && viewContextMenuStrip.MenuItems.Any(item => item.Key == viewType);
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132 | }
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133 |
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134 | private void viewsLabel_DoubleClick(object sender, EventArgs e) {
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135 | MainFormManager.CreateView(viewType, Content).Show();
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136 | }
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137 |
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138 | private void viewContextMenuStrip_ItemClicked(object sender, ToolStripItemClickedEventArgs e) {
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139 | Type viewType = (Type)e.ClickedItem.Tag;
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140 | ViewType = viewType;
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141 | }
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142 | }
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143 | }
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