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.Linq;
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24 | using System.Reflection;
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25 | using System.Windows.Forms;
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26 |
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27 | namespace HeuristicLab.MainForm.WindowsForms {
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28 | public partial class View : UserControl, IView {
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29 | private bool initialized;
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30 | public View() {
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31 | InitializeComponent();
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32 | this.initialized = false;
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33 | this.isShown = false;
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34 | this.closeReason = CloseReason.None;
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35 | this.readOnly = false;
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36 | if (ViewAttribute.HasViewAttribute(this.GetType()))
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37 | this.Caption = ViewAttribute.GetViewName(this.GetType());
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38 | else
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39 | this.Caption = "View";
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40 | }
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41 |
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42 | private string caption;
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43 | public string Caption {
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44 | get { return caption; }
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45 | set {
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46 | if (InvokeRequired) {
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47 | Action<string> action = delegate(string s) { this.Caption = s; };
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48 | Invoke(action, value);
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49 | } else {
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50 | if (value != caption) {
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51 | caption = value;
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52 | OnCaptionChanged();
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53 | }
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54 | }
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55 | }
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56 | }
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57 |
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58 | private bool readOnly;
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59 | public virtual bool ReadOnly {
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60 | get { return this.readOnly; }
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61 | set {
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62 | if (InvokeRequired) {
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63 | Action<bool> action = delegate(bool b) { this.ReadOnly = b; };
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64 | Invoke(action, value);
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65 | } else {
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66 | if (value != readOnly) {
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67 | this.readOnly = value;
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68 | OnReadOnlyChanged();
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69 | SetEnabledStateOfControls();
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70 | PropertyInfo prop = typeof(IView).GetProperty("ReadOnly");
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71 | PropagateStateChanges(this, typeof(IView), prop);
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72 | OnChanged();
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73 | }
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74 | }
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75 | }
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76 | }
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77 |
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78 | bool IView.Enabled {
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79 | get { return base.Enabled; }
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80 | set {
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81 | if (base.Enabled != value) {
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82 | this.SuspendRepaint();
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83 | base.Enabled = value;
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84 | bool isTopLevelView = MainFormManager.MainForm.Views.Contains(this);
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85 | this.ResumeRepaint(isTopLevelView);
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86 | }
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87 | }
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88 | }
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89 |
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90 | protected override void OnEnabledChanged(EventArgs e) {
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91 | base.OnEnabledChanged(e);
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92 | if (Enabled) SetEnabledStateOfControls();
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93 | }
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94 |
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95 | /// <summary>
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96 | /// This method is called if the ReadyOnly property of the View changes to update the controls of the view.
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97 | /// </summary>
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98 | protected virtual void SetEnabledStateOfControls() {
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99 | }
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100 |
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101 | private bool isShown;
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102 | public bool IsShown {
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103 | get { return this.isShown; }
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104 | private set { this.isShown = value; }
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105 | }
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106 |
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107 | public new void Show() {
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108 | MainForm mainform = MainFormManager.GetMainForm<MainForm>();
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109 | bool firstTimeShown = mainform.GetForm(this) == null;
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110 |
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111 | this.IsShown = true;
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112 | mainform.ShowView(this);
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113 | if (firstTimeShown) {
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114 | Form form = mainform.GetForm(this);
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115 | form.FormClosed += new FormClosedEventHandler(OnClosedHelper);
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116 | form.FormClosing += new FormClosingEventHandler(OnClosingHelper);
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117 | }
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118 | this.OnShown(new ViewShownEventArgs(this, firstTimeShown));
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119 | }
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120 |
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121 | public void Close() {
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122 | MainForm mainform = MainFormManager.GetMainForm<MainForm>();
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123 | Form form = mainform.GetForm(this);
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124 | if (form != null) {
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125 | this.IsShown = false;
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126 | mainform.CloseView(this);
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127 | }
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128 | }
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129 |
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130 | public void Close(CloseReason closeReason) {
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131 | MainForm mainform = MainFormManager.GetMainForm<MainForm>();
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132 | Form form = mainform.GetForm(this);
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133 | if (form != null) {
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134 | this.IsShown = false;
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135 | mainform.CloseView(this, closeReason);
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136 | }
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137 | }
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138 |
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139 | public new void Hide() {
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140 | this.IsShown = false;
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141 | MainFormManager.GetMainForm<MainForm>().HideView(this);
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142 | this.OnHidden(EventArgs.Empty);
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143 | }
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144 |
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145 | public event EventHandler CaptionChanged;
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146 | protected virtual void OnCaptionChanged() {
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147 | if (InvokeRequired)
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148 | Invoke((MethodInvoker)OnCaptionChanged);
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149 | else {
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150 | EventHandler handler = CaptionChanged;
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151 | if (handler != null)
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152 | handler(this, EventArgs.Empty);
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153 | }
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154 | }
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155 | public event EventHandler ReadOnlyChanged;
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156 | protected virtual void OnReadOnlyChanged() {
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157 | if (InvokeRequired)
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158 | Invoke((MethodInvoker)OnReadOnlyChanged);
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159 | else {
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160 | EventHandler handler = ReadOnlyChanged;
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161 | if (handler != null)
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162 | handler(this, EventArgs.Empty);
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163 | }
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164 | }
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165 | protected virtual void PropagateStateChanges(Control control, Type type, PropertyInfo propertyInfo) {
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166 | if (!type.GetProperties().Contains(propertyInfo))
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167 | throw new ArgumentException("The specified type " + type + "implement the property " + propertyInfo.Name + ".");
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168 | if (!type.IsAssignableFrom(this.GetType()))
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169 | throw new ArgumentException("The specified type " + type + "must be the same or a base class / interface of this object.");
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170 | if (!propertyInfo.CanWrite)
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171 | throw new ArgumentException("The specified property " + propertyInfo.Name + " must have a setter.");
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172 |
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173 | foreach (Control c in control.Controls) {
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174 | Type controlType = c.GetType();
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175 | PropertyInfo controlPropertyInfo = controlType.GetProperty(propertyInfo.Name, propertyInfo.PropertyType);
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176 | if (type.IsAssignableFrom(controlType) && controlPropertyInfo != null) {
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177 | var thisValue = propertyInfo.GetValue(this, null);
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178 | controlPropertyInfo.SetValue(c, thisValue, null);
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179 | } else PropagateStateChanges(c, type, propertyInfo);
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180 | }
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181 | }
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182 | public event EventHandler Changed;
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183 | protected virtual void OnChanged() {
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184 | if (InvokeRequired)
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185 | Invoke((MethodInvoker)OnChanged);
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186 | else {
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187 | EventHandler handler = Changed;
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188 | if (handler != null)
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189 | handler(this, EventArgs.Empty);
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190 | }
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191 | }
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192 |
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193 | internal protected virtual void OnShown(ViewShownEventArgs e) {
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194 | }
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195 |
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196 | internal protected virtual void OnHidden(EventArgs e) {
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197 | }
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198 |
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199 | private CloseReason closeReason;
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200 | internal CloseReason CloseReason {
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201 | get { return this.closeReason; }
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202 | set { this.closeReason = value; }
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203 | }
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204 |
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205 | internal void OnClosingHelper(object sender, FormClosingEventArgs e) {
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206 | FormClosingEventArgs eventArgs = new FormClosingEventArgs(this.closeReason, e.Cancel);
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207 | if (this.closeReason != CloseReason.None) {
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208 | this.OnClosing(eventArgs);
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209 | if (eventArgs.Cancel != e.Cancel)
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210 | e.Cancel = eventArgs.Cancel;
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211 | } else
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212 | this.OnClosing(e);
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213 | this.closeReason = CloseReason.None;
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214 | }
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215 |
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216 | internal protected virtual void OnClosing(FormClosingEventArgs e) {
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217 | }
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218 |
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219 | internal void OnClosedHelper(object sender, FormClosedEventArgs e) {
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220 | if (this.closeReason != CloseReason.None)
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221 | this.OnClosed(new FormClosedEventArgs(this.closeReason));
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222 | else
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223 | this.OnClosed(e);
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224 |
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225 | Form form = (Form)sender;
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226 | form.FormClosed -= new FormClosedEventHandler(OnClosedHelper);
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227 | form.FormClosing -= new FormClosingEventHandler(OnClosingHelper);
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228 | this.closeReason = CloseReason.None;
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229 | }
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230 |
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231 | internal protected virtual void OnClosed(FormClosedEventArgs e) {
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232 | }
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233 |
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234 | private void View_Load(object sender, EventArgs e) {
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235 | if (!this.initialized && !this.DesignMode) {
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236 | this.OnInitialized(e);
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237 | this.initialized = true;
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238 | }
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239 | }
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240 |
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241 | protected virtual void OnInitialized(EventArgs e) {
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242 | }
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243 |
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244 |
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245 | public void SuspendRepaint() {
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246 | if (InvokeRequired)
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247 | Invoke((MethodInvoker)SuspendRepaint);
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248 | else
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249 | ((Control)this).SuspendRepaint();
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250 | }
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251 | public void ResumeRepaint(bool refresh) {
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252 | if (InvokeRequired)
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253 | Invoke((Action<bool>)ResumeRepaint, refresh);
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254 | else
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255 | ((Control)this).ResumeRepaint(refresh);
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256 | }
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257 | }
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258 | }
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