mcs/class/Managed.Windows.Forms/System.Windows.Forms/ScrollBarRenderer.cs

   1 //
   2 // ScrollBarRenderer.cs
   3 //
   4 // Permission is hereby granted, free of charge, to any person obtaining
   5 // a copy of this software and associated documentation files (the
   6 // "Software"), to deal in the Software without restriction, including
   7 // without limitation the rights to use, copy, modify, merge, publish,
   8 // distribute, sublicense, and/or sell copies of the Software, and to
   9 // permit persons to whom the Software is furnished to do so, subject to
  10 // the following conditions:
  11 //
  12 // The above copyright notice and this permission notice shall be
  13 // included in all copies or substantial portions of the Software.
  14 //
  15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  19 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  20 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  21 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  22 //
  23 // Copyright (c) 2006 Novell, Inc.
  24 //
  25 // Authors:
  26 //      Jonathan Pobst (monkey@jpobst.com)
  27 //
  28
  29 #if NET_2_0
  30 using System.Drawing;
  31 using System.Windows.Forms.VisualStyles;
  32
  33 namespace System.Windows.Forms
  34 {
  35         public sealed class ScrollBarRenderer
  36         {
  37                 #region Private Constructor
  38                 private ScrollBarRenderer () { }
  39                 #endregion
  40
  41                 #region Public Static Methods
  42                 public static void DrawArrowButton (Graphics g, Rectangle bounds, ScrollBarArrowButtonState state)
  43                 {
  44                         if (!IsSupported)
  45                                 throw new InvalidOperationException ();
  46
  47                         VisualStyleRenderer vsr;
  48
  49                         switch (state) {
  50                                 case ScrollBarArrowButtonState.DownDisabled:
  51                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ArrowButton.DownDisabled);
  52                                         break;
  53                                 case ScrollBarArrowButtonState.DownHot:
  54                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ArrowButton.DownHot);
  55                                         break;
  56                                 case ScrollBarArrowButtonState.DownNormal:
  57                                 default:
  58                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ArrowButton.DownNormal);
  59                                         break;
  60                                 case ScrollBarArrowButtonState.DownPressed:
  61                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ArrowButton.DownPressed);
  62                                         break;
  63                                 case ScrollBarArrowButtonState.LeftDisabled:
  64                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ArrowButton.LeftDisabled);
  65                                         break;
  66                                 case ScrollBarArrowButtonState.LeftHot:
  67                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ArrowButton.LeftHot);
  68                                         break;
  69                                 case ScrollBarArrowButtonState.LeftNormal:
  70                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ArrowButton.LeftNormal);
  71                                         break;
  72                                 case ScrollBarArrowButtonState.LeftPressed:
  73                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ArrowButton.LeftPressed);
  74                                         break;
  75                                 case ScrollBarArrowButtonState.RightDisabled:
  76                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ArrowButton.RightDisabled);
  77                                         break;
  78                                 case ScrollBarArrowButtonState.RightHot:
  79                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ArrowButton.RightHot);
  80                                         break;
  81                                 case ScrollBarArrowButtonState.RightNormal:
  82                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ArrowButton.RightNormal);
  83                                         break;
  84                                 case ScrollBarArrowButtonState.RightPressed:
  85                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ArrowButton.RightPressed);
  86                                         break;
  87                                 case ScrollBarArrowButtonState.UpDisabled:
  88                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ArrowButton.UpDisabled);
  89                                         break;
  90                                 case ScrollBarArrowButtonState.UpHot:
  91                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ArrowButton.UpHot);
  92                                         break;
  93                                 case ScrollBarArrowButtonState.UpNormal:
  94                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ArrowButton.UpNormal);
  95                                         break;
  96                                 case ScrollBarArrowButtonState.UpPressed:
  97                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ArrowButton.UpPressed);
  98                                         break;
  99                         }
 100
 101                         vsr.DrawBackground(g, bounds);
 102                 }
 103
 104                 public static void DrawHorizontalThumb (Graphics g, Rectangle bounds, ScrollBarState state)
 105                 {
 106                         if (!IsSupported)
 107                                 throw new InvalidOperationException ();
 108
 109                         VisualStyleRenderer vsr;
 110
 111                         switch (state) {
 112                                 case ScrollBarState.Disabled:
 113                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ThumbButtonHorizontal.Disabled);
 114                                         break;
 115                                 case ScrollBarState.Hot:
 116                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ThumbButtonHorizontal.Hot);
 117                                         break;
 118                                 case ScrollBarState.Normal:
 119                                 default:
 120                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ThumbButtonHorizontal.Normal);
 121                                         break;
 122                                 case ScrollBarState.Pressed:
 123                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ThumbButtonHorizontal.Pressed);
 124                                         break;
 125                         }
 126
 127                         vsr.DrawBackground (g, bounds);
 128                 }
 129
 130                 public static void DrawHorizontalThumbGrip (Graphics g, Rectangle bounds, ScrollBarState state)
 131                 {
 132                         if (!IsSupported)
 133                                 throw new InvalidOperationException ();
 134
 135                         VisualStyleRenderer vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.GripperHorizontal.Normal);
 136
 137                         vsr.DrawBackground (g, bounds);
 138                 }
 139
 140                 public static void DrawLeftHorizontalTrack (Graphics g, Rectangle bounds, ScrollBarState state)
 141                 {
 142                         if (!IsSupported)
 143                                 throw new InvalidOperationException ();
 144
 145                         VisualStyleRenderer vsr;
 146
 147                         switch (state) {
 148                                 case ScrollBarState.Disabled:
 149                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.LeftTrackHorizontal.Disabled);
 150                                         break;
 151                                 case ScrollBarState.Hot:
 152                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.LeftTrackHorizontal.Hot);
 153                                         break;
 154                                 case ScrollBarState.Normal:
 155                                 default:
 156                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.LeftTrackHorizontal.Normal);
 157                                         break;
 158                                 case ScrollBarState.Pressed:
 159                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.LeftTrackHorizontal.Pressed);
 160                                         break;
 161                         }
 162
 163                         vsr.DrawBackground (g, bounds);
 164                 }
 165
 166                 public static void DrawLowerVerticalTrack (Graphics g, Rectangle bounds, ScrollBarState state)
 167                 {
 168                         if (!IsSupported)
 169                                 throw new InvalidOperationException ();
 170
 171                         VisualStyleRenderer vsr;
 172
 173                         switch (state) {
 174                                 case ScrollBarState.Disabled:
 175                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.LowerTrackVertical.Disabled);
 176                                         break;
 177                                 case ScrollBarState.Hot:
 178                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.LowerTrackVertical.Hot);
 179                                         break;
 180                                 case ScrollBarState.Normal:
 181                                 default:
 182                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.LowerTrackVertical.Normal);
 183                                         break;
 184                                 case ScrollBarState.Pressed:
 185                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.LowerTrackVertical.Pressed);
 186                                         break;
 187                         }
 188
 189                         vsr.DrawBackground (g, bounds);
 190                 }
 191
 192                 public static void DrawRightHorizontalTrack (Graphics g, Rectangle bounds, ScrollBarState state)
 193                 {
 194                         if (!IsSupported)
 195                                 throw new InvalidOperationException ();
 196
 197                         VisualStyleRenderer vsr;
 198
 199                         switch (state) {
 200                                 case ScrollBarState.Disabled:
 201                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.RightTrackHorizontal.Disabled);
 202                                         break;
 203                                 case ScrollBarState.Hot:
 204                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.RightTrackHorizontal.Hot);
 205                                         break;
 206                                 case ScrollBarState.Normal:
 207                                 default:
 208                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.RightTrackHorizontal.Normal);
 209                                         break;
 210                                 case ScrollBarState.Pressed:
 211                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.RightTrackHorizontal.Pressed);
 212                                         break;
 213                         }
 214
 215                         vsr.DrawBackground (g, bounds);
 216                 }
 217
 218                 public static void DrawSizeBox (Graphics g, Rectangle bounds, ScrollBarSizeBoxState state)
 219                 {
 220                         if (!IsSupported)
 221                                 throw new InvalidOperationException ();
 222
 223                         VisualStyleRenderer vsr;
 224
 225                         switch (state) {
 226                                 case ScrollBarSizeBoxState.LeftAlign:
 227                                 default:
 228                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.SizeBox.LeftAlign);
 229                                         break;
 230                                 case ScrollBarSizeBoxState.RightAlign:
 231                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.SizeBox.RightAlign);
 232                                         break;
 233                         }
 234
 235                         vsr.DrawBackground (g, bounds);
 236                 }
 237
 238                 public static void DrawUpperVerticalTrack (Graphics g, Rectangle bounds, ScrollBarState state)
 239                 {
 240                         if (!IsSupported)
 241                                 throw new InvalidOperationException ();
 242
 243                         VisualStyleRenderer vsr;
 244
 245                         switch (state) {
 246                                 case ScrollBarState.Disabled:
 247                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.UpperTrackVertical.Disabled);
 248                                         break;
 249                                 case ScrollBarState.Hot:
 250                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.UpperTrackVertical.Hot);
 251                                         break;
 252                                 case ScrollBarState.Normal:
 253                                 default:
 254                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.UpperTrackVertical.Normal);
 255                                         break;
 256                                 case ScrollBarState.Pressed:
 257                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.UpperTrackVertical.Pressed);
 258                                         break;
 259                         }
 260
 261                         vsr.DrawBackground (g, bounds);
 262                 }
 263
 264                 public static void DrawVerticalThumb (Graphics g, Rectangle bounds, ScrollBarState state)
 265                 {
 266                         if (!IsSupported)
 267                                 throw new InvalidOperationException ();
 268
 269                         VisualStyleRenderer vsr;
 270
 271                         switch (state) {
 272                                 case ScrollBarState.Disabled:
 273                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ThumbButtonVertical.Disabled);
 274                                         break;
 275                                 case ScrollBarState.Hot:
 276                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ThumbButtonVertical.Hot);
 277                                         break;
 278                                 case ScrollBarState.Normal:
 279                                 default:
 280                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ThumbButtonVertical.Normal);
 281                                         break;
 282                                 case ScrollBarState.Pressed:
 283                                         vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.ThumbButtonVertical.Pressed);
 284                                         break;
 285                         }
 286
 287                         vsr.DrawBackground (g, bounds);
 288                 }
 289
 290                 public static void DrawVerticalThumbGrip (Graphics g, Rectangle bounds, ScrollBarState state)
 291                 {
 292                         if (!IsSupported)
 293                                 throw new InvalidOperationException ();
 294
 295                         VisualStyleRenderer vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.GripperVertical.Normal); ;
 296
 297                         vsr.DrawBackground (g, bounds);
 298                 }
 299
 300                 public static Size GetSizeBoxSize (Graphics g, ScrollBarState state)
 301                 {
 302                         if (!IsSupported)
 303                                 throw new InvalidOperationException ();
 304
 305                         VisualStyleRenderer vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.SizeBox.LeftAlign);
 306
 307                         return vsr.GetPartSize(g, ThemeSizeType.Draw);
 308                 }
 309
 310                 public static Size GetThumbGripSize (Graphics g, ScrollBarState state)
 311                 {
 312                         if (!IsSupported)
 313                                 throw new InvalidOperationException ();
 314
 315                         VisualStyleRenderer vsr = new VisualStyleRenderer (VisualStyleElement.ScrollBar.GripperVertical.Normal);
 316
 317                         return vsr.GetPartSize (g, ThemeSizeType.Draw);
 318                 }
 319                 #endregion
 320
 321                 #region Public Static Properties
 322                 public static bool IsSupported {
 323                         get { return VisualStyleInformation.IsEnabledByUser && (Application.VisualStyleState == VisualStyleState.ClientAndNonClientAreasEnabled || Application.VisualStyleState == VisualStyleState.ClientAreaEnabled); }
 324                 }
 325                 #endregion
 326         }
 327 }
 328 #endif