1 | using System.Windows.Forms;
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2 | using System.Drawing;
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3 | using System.ComponentModel;
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4 |
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5 | namespace Common
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6 | {
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7 | public class Theme
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8 | {
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9 | public delegate void ApplyThemeHandler(Component component);
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10 | public static event ApplyThemeHandler OnApplyTheme;
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11 | public static Color ColorWindow;
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12 | public static Color ColorWindowText;
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13 | public static Color ColorControl;
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14 | public static Color ColorControlText;
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15 | public static Color ColorControlSelected;
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16 | public static bool Used;
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17 | private static string _name;
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18 | public static string Name
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19 | {
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20 | get => _name;
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21 | set
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22 | {
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23 | _name = value;
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24 | switch (value)
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25 | {
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26 | case "Dark":
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27 | ColorWindow = Color.FromArgb(0x20, 0x20, 0x20);
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28 | ColorWindowText = Color.White;
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29 | ColorControl = Color.FromArgb(0x40, 0x40, 0x40);
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30 | ColorControlText = Color.White;
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31 | ColorControlSelected = Color.FromArgb(255, 96, 125, 155);
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32 | break;
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33 | case "Light":
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34 | ColorWindow = Color.White;
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35 | ColorWindowText = Color.Black;
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36 | ColorControl = Color.FromArgb(0xe0, 0xe0, 0xe0);
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37 | ColorControlText = Color.Black;
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38 | ColorControlSelected = Color.FromArgb(255, 196, 225, 255);
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39 | break;
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40 | default:
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41 | _name = "System";
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42 | ColorWindow = Color.FromKnownColor(KnownColor.Window);
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43 | ColorWindowText = Color.FromKnownColor(KnownColor.WindowText);
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44 | ColorControl = Color.FromKnownColor(KnownColor.Control);
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45 | ColorControlText = Color.FromKnownColor(KnownColor.ControlText);
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46 | ColorControlSelected = Color.FromArgb(255, 196, 225, 255);
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47 | break;
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48 | }
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49 | }
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50 | }
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51 |
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52 | static Theme()
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53 | {
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54 | Name = "System";
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55 | }
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56 |
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57 | public static Color AdjustColor(Color color)
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58 | {
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59 | if (color == Color.White) color = ColorWindow;
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60 | else if (color == Color.Black) color = ColorWindowText;
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61 | else
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62 | {
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63 | if (Name == "Dark")
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64 | {
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65 | // Exchange dark with light colors and vice versa
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66 | if (color == Color.DarkBlue) color = Color.LightBlue;
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67 | else if (color == Color.LightBlue) color = Color.DarkBlue;
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68 | else if (color == Color.DarkGreen) color = Color.LightGreen;
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69 | else if (color == Color.LightGreen) color = Color.DarkGreen;
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70 | else if (color == Color.DarkRed) color = Color.LightCoral;
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71 | else if (color == Color.LightCoral) color = Color.DarkRed;
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72 | else if (color == Color.PowderBlue) color = Color.Navy;
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73 | else if (color == Color.Navy) color = Color.PowderBlue;
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74 | else if (color == Color.LightCyan) color = Color.DarkCyan;
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75 | else if (color == Color.DarkCyan) color = Color.LightCyan;
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76 | else if (color == Color.Cyan) color = Color.Teal;
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77 | else if (color == Color.Teal) color = Color.Cyan;
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78 | else if (color == Color.Yellow) color = Color.Brown;
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79 | else if (color == Color.Brown) color = Color.Yellow;
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80 | else if (color == Color.LightGray) color = Color.DarkGray;
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81 | else if (color == Color.DarkGray) color = Color.LightGray;
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82 | else if (color == Color.Orchid) color = Color.DarkOrchid;
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83 | else if (color == Color.DarkOrchid) color = Color.Orchid;
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84 | }
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85 | }
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86 |
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87 | return color;
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88 | }
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89 |
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90 | public static void ApplyTheme(Component component)
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91 | {
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92 | if (component is Control control)
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93 | {
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94 | foreach (Control child in control.Controls)
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95 | {
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96 | ApplyTheme(child);
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97 | }
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98 |
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99 | if ((control is TextBox) || (control is NumericUpDown) || (control is ComboBox) || (control is RichTextBox)
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100 | || (control is ListView))
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101 | {
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102 | control.BackColor = ColorWindow;
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103 | control.ForeColor = ColorWindowText;
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104 | }
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105 | else
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106 | {
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107 | control.BackColor = ColorControl;
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108 | control.ForeColor = ColorControlText;
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109 | }
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110 | if (control.ContextMenuStrip != null)
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111 | {
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112 | ApplyTheme(control.ContextMenuStrip);
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113 | }
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114 | }
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115 |
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116 | if (component is SplitButton splitButton)
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117 | {
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118 | ApplyTheme(splitButton.Menu);
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119 | }
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120 | if ((component is Button button) && (Name == "System"))
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121 | {
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122 | button.UseVisualStyleBackColor = true;
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123 | } else
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124 | if (component is LinkLabel linkLabel)
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125 | {
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126 | linkLabel.LinkColor = ColorControlText;
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127 | linkLabel.ActiveLinkColor = ColorControlText;
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128 | linkLabel.VisitedLinkColor = ColorControlText;
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129 | } else
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130 | if (component is TabControl tabControl)
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131 | {
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132 | foreach (TabPage tabPage in tabControl.TabPages)
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133 | {
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134 | ApplyTheme(tabPage);
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135 | }
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136 | } else
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137 | if (component is ToolStrip toolStrip)
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138 | {
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139 | toolStrip.RenderMode = ToolStripRenderMode.Professional;
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140 | toolStrip.Renderer = new ToolStripProfessionalRenderer(new ThemeColorTable());
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141 | foreach (ToolStripItem item in toolStrip.Items)
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142 | {
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143 | if (item is ToolStripMenuItem toolStripMenuItem)
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144 | {
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145 | if (toolStripMenuItem.DropDownItems.Count > 0)
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146 | {
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147 | foreach (ToolStripItem dropDownItem in toolStripMenuItem.DropDownItems)
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148 | {
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149 | ApplyTheme(dropDownItem);
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150 | }
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151 | }
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152 | }
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153 | ApplyTheme(item);
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154 | }
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155 | } else
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156 | if (component is ToolStripItem toolStripItem)
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157 | {
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158 | toolStripItem.ForeColor = ColorControlText;
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159 | toolStripItem.BackColor = ColorControl;
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160 | if (toolStripItem is ToolStripMenuItem toolStripMenuItem)
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161 | {
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162 | if (toolStripMenuItem.DropDownItems.Count > 0)
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163 | {
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164 | foreach (ToolStripItem dropDownItem in toolStripMenuItem.DropDownItems)
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165 | {
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166 | ApplyTheme(dropDownItem);
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167 | }
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168 | }
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169 | }
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170 | } else
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171 | if (component is DataGridView dataGridView)
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172 | {
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173 | dataGridView.BackgroundColor = ColorWindow;
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174 | dataGridView.DefaultCellStyle.BackColor = ColorWindow;
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175 | dataGridView.DefaultCellStyle.ForeColor = ColorWindowText;
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176 | dataGridView.ColumnHeadersDefaultCellStyle.BackColor = ColorWindow;
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177 | dataGridView.ColumnHeadersDefaultCellStyle.ForeColor = ColorWindowText;
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178 | } else
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179 | if (component is RichTextBox richTextBox)
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180 | {
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181 | richTextBox.SelectAll();
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182 | richTextBox.SelectionColor = ColorWindowText;
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183 | richTextBox.SelectionLength = 0;
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184 | } else
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185 | {
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186 | OnApplyTheme?.Invoke(component);
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187 | }
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188 | }
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189 |
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190 | public static void UseTheme(Form form)
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191 | {
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192 | if (!Used && (_name == "System")) return;
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193 | ApplyTheme(form);
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194 | Used = true;
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195 | }
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196 | }
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197 |
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198 | public class ThemeColorTable : ProfessionalColorTable
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199 | {
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200 | public override Color MenuStripGradientBegin => Theme.ColorControl;
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201 | public override Color MenuStripGradientEnd => Theme.ColorControl;
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202 | public override Color ToolStripContentPanelGradientBegin => Theme.ColorControl;
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203 | public override Color ToolStripContentPanelGradientEnd => Theme.ColorControl;
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204 | public override Color ToolStripDropDownBackground => Theme.ColorControl;
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205 | public override Color ToolStripGradientBegin => Theme.ColorControl;
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206 | public override Color ToolStripGradientMiddle => Theme.ColorControl;
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207 | public override Color ToolStripGradientEnd => Theme.ColorControl;
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208 | public override Color MenuItemSelected => Theme.ColorControlSelected;
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209 | public override Color MenuItemSelectedGradientBegin => Theme.ColorControlSelected;
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210 | public override Color MenuItemSelectedGradientEnd => Theme.ColorControlSelected;
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211 | public override Color ImageMarginGradientBegin => Theme.ColorControl;
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212 | public override Color ImageMarginGradientMiddle => Theme.ColorControl;
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213 | public override Color ImageMarginGradientEnd => Theme.ColorControl;
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214 | public override Color MenuItemPressedGradientBegin => Theme.ColorControlSelected;
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215 | public override Color MenuItemPressedGradientMiddle => Theme.ColorControlSelected;
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216 | public override Color MenuItemPressedGradientEnd => Theme.ColorControlSelected;
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217 | }
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218 | } |
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