mcs/class/System.Drawing/System.Drawing/SystemBrushes.cs

   1 //
   2 // System.Drawing.SystemBrushes.cs
   3 //
   4 // Author:
   5 //   Dennis Hayes (dennish@Raytek.com)
   6 //
   7 // (C) 2002 Ximian, Inc
   8 //
   9 using System;
  10
  11 namespace System.Drawing
  12 {
  13         /// <summary>
  14         /// Summary description for SystemBrushes.
  15         /// </summary>
  16         public sealed class SystemBrushes
  17         {
  18                 static SolidBrush active_border;
  19                 static SolidBrush active_caption;
  20                 static SolidBrush active_caption_text;
  21                 static SolidBrush app_workspace;
  22                 static SolidBrush control;
  23                 static SolidBrush control_dark;
  24                 static SolidBrush control_dark_dark;
  25                 static SolidBrush control_light;
  26                 static SolidBrush control_light_light;
  27                 static SolidBrush control_text;
  28                 static SolidBrush desktop;
  29                 static SolidBrush highlight;
  30                 static SolidBrush highlight_text;
  31                 static SolidBrush hot_track;
  32                 static SolidBrush inactive_border;
  33                 static SolidBrush inactive_caption;
  34                 static SolidBrush info;
  35                 static SolidBrush menu;
  36                 static SolidBrush scroll_bar;
  37                 static SolidBrush window;
  38                 static SolidBrush window_text;
  39
  40                 private SystemBrushes()
  41                 {
  42                 }
  43
  44                 public static Brush ActiveBorder
  45                 {
  46                         get {
  47                                 if (active_border == null) {
  48                                         active_border = new SolidBrush (SystemColors.ActiveBorder);
  49                                         active_border.isModifiable = false;
  50                                 }
  51
  52                                 return active_border;
  53                         }
  54                 }
  55
  56                 public static Brush ActiveCaption
  57                 {
  58                         get {
  59                                 if (active_caption == null) {
  60                                         active_caption = new SolidBrush (SystemColors.ActiveCaption);
  61                                         active_caption.isModifiable = false;
  62                                 }
  63
  64                                 return active_caption;
  65                         }
  66                 }
  67
  68                 public static Brush ActiveCaptionText
  69                 {
  70                         get {
  71                                 if (active_caption_text == null) {
  72                                         active_caption_text = new SolidBrush (SystemColors.ActiveCaptionText);
  73                                         active_caption_text.isModifiable = false;
  74                                 }
  75
  76                                 return active_caption_text;
  77                         }
  78                 }
  79
  80                 public static Brush AppWorkspace
  81                 {
  82                         get {
  83                                 if (app_workspace == null) {
  84                                         app_workspace = new SolidBrush (SystemColors.AppWorkspace);
  85                                         app_workspace.isModifiable = false;
  86                                 }
  87
  88                                 return app_workspace;
  89                         }
  90                 }
  91
  92                 public static Brush Control {
  93                         get {
  94                                 if (control == null) {
  95                                         control = new SolidBrush (SystemColors.Control);
  96                                         control.isModifiable = false;
  97                                 }
  98
  99                                 return control;
 100                         }
 101                 }
 102
 103                 public static Brush ControlLight {
 104                         get {
 105                                 if (control_light == null) {
 106                                         control_light = new SolidBrush (SystemColors.ControlLight);
 107                                         control_light.isModifiable = false;
 108                                 }
 109
 110                                 return control_light;
 111                         }
 112                 }
 113
 114                 public static Brush ControlLightLight {
 115                         get {
 116                                 if (control_light_light == null) {
 117                                         control_light_light = new SolidBrush (SystemColors.ControlLightLight);
 118                                         control_light_light.isModifiable = false;
 119                                 }
 120
 121                                 return control_light_light;
 122                         }
 123                 }
 124
 125                 public static Brush ControlDark {
 126                         get {
 127                                 if (control_dark == null) {
 128                                         control_dark = new SolidBrush (SystemColors.ControlDark);
 129                                         control_dark.isModifiable = false;
 130                                 }
 131
 132                                 return control_dark;
 133                         }
 134                 }
 135
 136                 public static Brush ControlDarkDark {
 137                         get {
 138                                 if (control_dark_dark == null) {
 139                                         control_dark_dark = new SolidBrush (SystemColors.ControlDarkDark);
 140                                         control_dark_dark.isModifiable = false;
 141                                 }
 142
 143                                 return control_dark_dark;
 144                         }
 145                 }
 146
 147                 public static Brush ControlText {
 148                         get {
 149                                 if (control_text == null) {
 150                                         control_text = new SolidBrush (SystemColors.ControlText);
 151                                         control_text.isModifiable = false;
 152                                 }
 153
 154                                 return control_text;
 155                         }
 156                 }
 157
 158                 public static Brush Highlight {
 159                         get {
 160                                 if (highlight == null) {
 161                                         highlight = new SolidBrush (SystemColors.Highlight);
 162                                         highlight.isModifiable = false;
 163                                 }
 164
 165                                 return highlight;
 166                         }
 167                 }
 168
 169                 public static Brush HighlightText {
 170                         get {
 171                                 if (highlight_text == null) {
 172                                         highlight_text = new SolidBrush (SystemColors.HighlightText);
 173                                         highlight_text.isModifiable = false;
 174                                 }
 175
 176                                 return highlight_text;
 177                         }
 178                 }
 179
 180                 public static Brush Window {
 181                         get {
 182                                 if (window == null) {
 183                                         window = new SolidBrush (SystemColors.Window);
 184                                         window.isModifiable = false;
 185                                 }
 186
 187                                 return window;
 188                         }
 189                 }
 190                 public static Brush WindowText {
 191                         get {
 192                                 if (window_text == null) {
 193                                         window_text = new SolidBrush (SystemColors.WindowText);
 194                                         window_text.isModifiable = false;
 195                                 }
 196
 197                                 return window_text;
 198                         }
 199                 }
 200
 201                 public static Brush InactiveBorder {
 202                         get {
 203                                 if (inactive_border == null) {
 204                                         inactive_border = new SolidBrush (SystemColors.InactiveBorder);
 205                                         inactive_border.isModifiable = false;
 206                                 }
 207
 208                                 return inactive_border;
 209                         }
 210                 }
 211
 212                 public static Brush Desktop {
 213                         get {
 214                                 if (desktop == null) {
 215                                         desktop = new SolidBrush (SystemColors.Desktop);
 216                                         desktop.isModifiable = false;
 217                                 }
 218
 219                                 return desktop;
 220                         }
 221                 }
 222
 223                 public static Brush HotTrack {
 224                         get {
 225                                 if (hot_track == null) {
 226                                         hot_track = new SolidBrush (SystemColors.HotTrack);
 227                                         hot_track.isModifiable = false;
 228                                 }
 229
 230                                 return hot_track;
 231                         }
 232                 }
 233
 234                 public static Brush InactiveCaption {
 235                         get {
 236                                 if (inactive_caption == null) {
 237                                         inactive_caption = new SolidBrush (SystemColors.InactiveCaption);
 238                                         inactive_caption.isModifiable = false;
 239                                 }
 240
 241                                 return inactive_caption;
 242                         }
 243                 }
 244
 245                 public static Brush Info {
 246                         get {
 247                                 if (info == null) {
 248                                         info = new SolidBrush (SystemColors.Info);
 249                                         info.isModifiable = false;
 250                                 }
 251
 252                                 return info;
 253                         }
 254                 }
 255
 256                 public static Brush Menu {
 257                         get {
 258                                 if (menu == null) {
 259                                         menu = new SolidBrush (SystemColors.Menu);
 260                                         menu.isModifiable = false;
 261                                 }
 262
 263                                 return menu;
 264                         }
 265                 }
 266
 267                 public static Brush ScrollBar {
 268                         get {
 269                                 if (scroll_bar == null) {
 270                                         scroll_bar = new SolidBrush (SystemColors.ScrollBar);
 271                                         scroll_bar.isModifiable = false;
 272                                 }
 273
 274                                 return scroll_bar;
 275                         }
 276                 }
 277
 278                 public static Brush FromSystemColor (Color c)
 279                 {
 280                         if (c.IsSystemColor) {
 281                                 SolidBrush newBrush = new SolidBrush (c);
 282                                 newBrush.isModifiable = false;
 283                                 return newBrush;
 284                         }
 285
 286                         String message = String.Format ("The color {0} is not a system color.", c);
 287                         throw new ArgumentException (message);
 288                 }
 289         }
 290 }