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

   1 //
   2 // ToolStripRenderer.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) Jonathan Pobst
  24 //
  25 // Authors:
  26 //      Jonathan Pobst (monkey@jpobst.com)
  27 //
  28
  29 using System;
  30 using System.ComponentModel;
  31 using System.Drawing;
  32 using System.Drawing.Imaging;
  33 using System.Drawing.Drawing2D;
  34
  35 namespace System.Windows.Forms
  36 {
  37         public abstract class ToolStripRenderer
  38         {
  39                 private static ColorMatrix grayscale_matrix = new ColorMatrix (new float[][] {
  40                                           new float[] {0.22f, 0.22f, 0.22f, 0, 0},
  41                                           new float[] {0.27f, 0.27f, 0.27f, 0, 0},
  42                                           new float[] {0.04f, 0.04f, 0.04f, 0, 0},
  43                                           new float[] {0.365f, 0.365f, 0.365f, 0.7f, 0},
  44                                           new float[] {0, 0, 0, 0, 1}
  45                                   });
  46
  47                 protected ToolStripRenderer ()
  48                 {
  49                 }
  50
  51                 #region Public Methods
  52                 public static Image CreateDisabledImage(Image normalImage)
  53                 {
  54                         if (normalImage == null)
  55                                 return null;
  56
  57                         // Code adapted from ThemeWin32Classic.cs
  58                         ImageAttributes ia = new ImageAttributes();
  59                         ia.SetColorMatrix (grayscale_matrix);
  60
  61                         Bitmap b = new Bitmap(normalImage.Width, normalImage.Height);
  62                         using (Graphics g = Graphics.FromImage(b))
  63                                 g.DrawImage(normalImage, new Rectangle (0, 0, normalImage.Width, normalImage.Height), 0, 0, normalImage.Width, normalImage.Height, GraphicsUnit.Pixel, ia);
  64
  65                         return b;
  66                 }
  67
  68                 public void DrawArrow (ToolStripArrowRenderEventArgs e)
  69                 { this.OnRenderArrow (e); }
  70
  71                 public void DrawButtonBackground (ToolStripItemRenderEventArgs e)
  72                 { this.OnRenderButtonBackground (e); }
  73
  74                 public void DrawDropDownButtonBackground (ToolStripItemRenderEventArgs e)
  75                 { this.OnRenderDropDownButtonBackground (e); }
  76
  77                 public void DrawGrip (ToolStripGripRenderEventArgs e)
  78                 { this.OnRenderGrip (e); }
  79
  80                 public void DrawImageMargin (ToolStripRenderEventArgs e)
  81                 { this.OnRenderImageMargin (e); }
  82
  83                 public void DrawItemBackground (ToolStripItemRenderEventArgs e)
  84                 { this.OnRenderItemBackground (e); }
  85
  86                 public void DrawItemCheck (ToolStripItemImageRenderEventArgs e)
  87                 { this.OnRenderItemCheck (e); }
  88
  89                 public void DrawItemImage (ToolStripItemImageRenderEventArgs e)
  90                 { this.OnRenderItemImage (e); }
  91
  92                 public void DrawItemText (ToolStripItemTextRenderEventArgs e)
  93                 { this.OnRenderItemText (e); }
  94
  95                 public void DrawLabelBackground (ToolStripItemRenderEventArgs e)
  96                 { this.OnRenderLabelBackground (e); }
  97
  98                 public void DrawMenuItemBackground (ToolStripItemRenderEventArgs e)
  99                 { this.OnRenderMenuItemBackground (e); }
 100
 101                 public void DrawOverflowButtonBackground (ToolStripItemRenderEventArgs e)
 102                 { this.OnRenderOverflowButtonBackground (e); }
 103
 104                 public void DrawSeparator (ToolStripSeparatorRenderEventArgs e)
 105                 { this.OnRenderSeparator (e); }
 106
 107                 public void DrawSplitButton (ToolStripItemRenderEventArgs e)
 108                 { this.OnRenderSplitButtonBackground (e); }
 109
 110                 public void DrawStatusStripSizingGrip (ToolStripRenderEventArgs e)
 111                 { this.OnRenderStatusStripSizingGrip (e); }
 112
 113                 public void DrawToolStripBackground (ToolStripRenderEventArgs e)
 114                 { this.OnRenderToolStripBackground (e); }
 115
 116                 public void DrawToolStripBorder (ToolStripRenderEventArgs e)
 117                 { this.OnRenderToolStripBorder (e); }
 118
 119                 public void DrawToolStripContentPanelBackground (ToolStripContentPanelRenderEventArgs e)
 120                 { this.OnRenderToolStripContentPanelBackground (e); }
 121
 122                 public void DrawToolStripPanelBackground (ToolStripPanelRenderEventArgs e)
 123                 { this.OnRenderToolStripPanelBackground (e); }
 124
 125                 public void DrawToolStripStatusLabelBackground (ToolStripItemRenderEventArgs e)
 126                 { this.OnRenderToolStripStatusLabelBackground (e); }
 127                 #endregion
 128
 129                 #region Protected Methods
 130                 protected internal virtual void Initialize (ToolStrip toolStrip) {}
 131                 protected internal virtual void InitializeContentPanel (ToolStripContentPanel contentPanel) {}
 132                 protected internal virtual void InitializeItem (ToolStripItem item) {}
 133                 protected internal virtual void InitializePanel (ToolStripPanel toolStripPanel) {}
 134
 135                 protected virtual void OnRenderArrow (ToolStripArrowRenderEventArgs e)
 136                 {
 137                         switch (e.Direction) {
 138                                 case ArrowDirection.Down:
 139                                         using (Pen p = new Pen (e.ArrowColor)) {
 140                                                 int x = e.ArrowRectangle.Left + (e.ArrowRectangle.Width / 2) - 3;
 141                                                 int y = e.ArrowRectangle.Top + (e.ArrowRectangle.Height / 2) - 2;
 142
 143                                                 DrawDownArrow (e.Graphics, p, x, y);
 144                                         }
 145                                         break;
 146                                 case ArrowDirection.Left:
 147                                         break;
 148                                 case ArrowDirection.Right:
 149                                         using (Pen p = new Pen (e.ArrowColor)) {
 150                                                 int x = e.ArrowRectangle.Left + (e.ArrowRectangle.Width / 2) - 3;
 151                                                 int y = e.ArrowRectangle.Top + (e.ArrowRectangle.Height / 2) - 4;
 152
 153                                                 DrawRightArrow (e.Graphics, p, x, y);
 154                                         }
 155                                         break;
 156                                 case ArrowDirection.Up:
 157                                         break;
 158                         }
 159
 160                         ToolStripArrowRenderEventHandler eh = (ToolStripArrowRenderEventHandler)Events[RenderArrowEvent];
 161                         if (eh != null)
 162                                 eh (this, e);
 163                 }
 164
 165                 protected virtual void OnRenderButtonBackground (ToolStripItemRenderEventArgs e)
 166                 {
 167                         ToolStripItemRenderEventHandler eh = (ToolStripItemRenderEventHandler)Events [RenderButtonBackgroundEvent];
 168                         if (eh != null)
 169                                 eh (this, e);
 170                 }
 171
 172                 protected virtual void OnRenderDropDownButtonBackground (ToolStripItemRenderEventArgs e)
 173                 {
 174                         ToolStripItemRenderEventHandler eh = (ToolStripItemRenderEventHandler)Events [RenderDropDownButtonBackgroundEvent];
 175                         if (eh != null)
 176                                 eh (this, e);
 177                 }
 178
 179                 protected virtual void OnRenderGrip (ToolStripGripRenderEventArgs e)
 180                 {
 181                         ToolStripGripRenderEventHandler eh = (ToolStripGripRenderEventHandler)Events [RenderGripEvent];
 182                         if (eh != null)
 183                                 eh (this, e);
 184                 }
 185
 186                 protected virtual void OnRenderImageMargin (ToolStripRenderEventArgs e)
 187                 {
 188                         ToolStripRenderEventHandler eh = (ToolStripRenderEventHandler)Events [RenderImageMarginEvent];
 189                         if (eh != null)
 190                                 eh (this, e);
 191                 }
 192
 193                 protected virtual void OnRenderItemBackground (ToolStripItemRenderEventArgs e)
 194                 {
 195                         if (e.Item.BackColor != Control.DefaultBackColor) {
 196                                 // Only paint the BackColor if it's not the default one,
 197                                 // to avoid painting a solid background color over the parent ToolStrip gradient.
 198                                 Rectangle item_bounds = new Rectangle (0, 0, e.Item.Width, e.Item.Height);
 199                                 e.Graphics.FillRectangle (ThemeEngine.Current.ResPool.GetSolidBrush (e.Item.BackColor), item_bounds);
 200                         }
 201
 202                         if (e.Item.BackgroundImage != null) {
 203                                 Rectangle item_bounds = new Rectangle (0, 0, e.Item.Width, e.Item.Height);
 204                                 DrawBackground (e.Graphics, item_bounds, e.Item.BackgroundImage, e.Item.BackgroundImageLayout);
 205                         }
 206
 207                         ToolStripItemRenderEventHandler eh = (ToolStripItemRenderEventHandler)Events [RenderItemBackgroundEvent];
 208                         if (eh != null)
 209                                 eh (this, e);
 210                 }
 211
 212                 protected virtual void OnRenderItemCheck (ToolStripItemImageRenderEventArgs e)
 213                 {
 214                         ToolStripItemImageRenderEventHandler eh = (ToolStripItemImageRenderEventHandler)Events [RenderItemCheckEvent];
 215                         if (eh != null)
 216                                 eh (this, e);
 217                 }
 218
 219                 protected virtual void OnRenderItemImage (ToolStripItemImageRenderEventArgs e)
 220                 {
 221                         bool need_dispose = false;
 222                         Image i = e.Image;
 223
 224                         if (e.Item.RightToLeft == RightToLeft.Yes && e.Item.RightToLeftAutoMirrorImage == true) {
 225                                 i = CreateMirrorImage (i);
 226                                 need_dispose = true;
 227                         }
 228
 229                         if (e.Item.ImageTransparentColor != Color.Empty) {
 230                                 ImageAttributes ia = new ImageAttributes ();
 231                                 ia.SetColorKey (e.Item.ImageTransparentColor, e.Item.ImageTransparentColor);
 232                                 e.Graphics.DrawImage (i, e.ImageRectangle, 0, 0, i.Width, i.Height, GraphicsUnit.Pixel, ia);
 233                                 ia.Dispose ();
 234                         }
 235                         else
 236                                 e.Graphics.DrawImage (i, e.ImageRectangle);
 237
 238                         if (need_dispose)
 239                                 i.Dispose ();
 240
 241                         ToolStripItemImageRenderEventHandler eh = (ToolStripItemImageRenderEventHandler)Events [RenderItemImageEvent];
 242                         if (eh != null)
 243                                 eh (this, e);
 244                 }
 245
 246                 protected virtual void OnRenderItemText (ToolStripItemTextRenderEventArgs e)
 247                 {
 248                         if (e.TextDirection == ToolStripTextDirection.Vertical90) {
 249                                 GraphicsState gs = e.Graphics.Save ();
 250                                 PointF p = new PointF (e.Graphics.Transform.OffsetX, e.Graphics.Transform.OffsetY);
 251
 252                                 e.Graphics.ResetTransform ();
 253                                 e.Graphics.RotateTransform (90);
 254
 255                                 RectangleF r = new RectangleF ((e.Item.Height - e.TextRectangle.Height) / 2, (e.TextRectangle.Width + p.X) * -1 - 18, e.TextRectangle.Height, e.TextRectangle.Width);
 256
 257                                 StringFormat sf = new StringFormat ();
 258                                 sf.Alignment = StringAlignment.Center;
 259
 260                                 e.Graphics.DrawString (e.Text, e.TextFont, ThemeEngine.Current.ResPool.GetSolidBrush (e.TextColor), r, sf);
 261
 262                                 e.Graphics.Restore (gs);
 263                         } else if (e.TextDirection == ToolStripTextDirection.Vertical270) {
 264                                 GraphicsState gs = e.Graphics.Save ();
 265                                 PointF p = new PointF (e.Graphics.Transform.OffsetX, e.Graphics.Transform.OffsetY);
 266
 267                                 e.Graphics.ResetTransform ();
 268                                 e.Graphics.RotateTransform (270);
 269
 270                                 RectangleF r = new RectangleF (-e.TextRectangle.Height - (e.Item.Height - e.TextRectangle.Height) / 2, (e.TextRectangle.Width + p.X) + 4, e.TextRectangle.Height, e.TextRectangle.Width);
 271
 272                                 StringFormat sf = new StringFormat ();
 273                                 sf.Alignment = StringAlignment.Center;
 274
 275                                 e.Graphics.DrawString (e.Text, e.TextFont, ThemeEngine.Current.ResPool.GetSolidBrush (e.TextColor), r, sf);
 276
 277                                 e.Graphics.Restore (gs);
 278                         } else
 279                                 TextRenderer.DrawText (e.Graphics, e.Text, e.TextFont, e.TextRectangle, e.TextColor, e.TextFormat);
 280
 281                         ToolStripItemTextRenderEventHandler eh = (ToolStripItemTextRenderEventHandler)Events[RenderItemTextEvent];
 282                         if (eh != null)
 283                                 eh (this, e);
 284                 }
 285
 286                 protected virtual void OnRenderLabelBackground (ToolStripItemRenderEventArgs e)
 287                 {
 288                         ToolStripItemRenderEventHandler eh = (ToolStripItemRenderEventHandler)Events [RenderLabelBackgroundEvent];
 289                         if (eh != null)
 290                                 eh (this, e);
 291                 }
 292
 293                 protected virtual void OnRenderMenuItemBackground (ToolStripItemRenderEventArgs e)
 294                 {
 295                         ToolStripItemRenderEventHandler eh = (ToolStripItemRenderEventHandler)Events [RenderMenuItemBackgroundEvent];
 296                         if (eh != null)
 297                                 eh (this, e);
 298                 }
 299
 300                 protected virtual void OnRenderOverflowButtonBackground (ToolStripItemRenderEventArgs e)
 301                 {
 302                         ToolStripItemRenderEventHandler eh = (ToolStripItemRenderEventHandler)Events [RenderOverflowButtonBackgroundEvent];
 303                         if (eh != null)
 304                                 eh (this, e);
 305                 }
 306
 307                 protected virtual void OnRenderSeparator (ToolStripSeparatorRenderEventArgs e)
 308                 {
 309                         ToolStripSeparatorRenderEventHandler eh = (ToolStripSeparatorRenderEventHandler)Events [RenderSeparatorEvent];
 310                         if (eh != null)
 311                                 eh (this, e);
 312                 }
 313
 314                 protected virtual void OnRenderSplitButtonBackground (ToolStripItemRenderEventArgs e)
 315                 {
 316                         ToolStripItemRenderEventHandler eh = (ToolStripItemRenderEventHandler)Events [RenderSplitButtonBackgroundEvent];
 317                         if (eh != null)
 318                                 eh (this, e);
 319                 }
 320
 321                 protected virtual void OnRenderStatusStripSizingGrip (ToolStripRenderEventArgs e)
 322                 {
 323                         StatusStrip ss = (StatusStrip)e.ToolStrip;
 324
 325                         if (ss.SizingGrip == true)
 326                                 DrawSizingGrip (e.Graphics, ss.SizeGripBounds);
 327
 328                         ToolStripRenderEventHandler eh = (ToolStripRenderEventHandler)Events [RenderStatusStripSizingGripEvent];
 329                         if (eh != null)
 330                                 eh (this, e);
 331                 }
 332
 333                 protected virtual void OnRenderToolStripBackground (ToolStripRenderEventArgs e)
 334                 {
 335                         ToolStripRenderEventHandler eh = (ToolStripRenderEventHandler)Events [RenderToolStripBackgroundEvent];
 336                         if (eh != null)
 337                                 eh (this, e);
 338                 }
 339
 340                 protected virtual void OnRenderToolStripBorder (ToolStripRenderEventArgs e)
 341                 {
 342                         ToolStripRenderEventHandler eh = (ToolStripRenderEventHandler)Events [RenderToolStripBorderEvent];
 343                         if (eh != null)
 344                                 eh (this, e);
 345                 }
 346
 347                 protected virtual void OnRenderToolStripContentPanelBackground (ToolStripContentPanelRenderEventArgs e)
 348                 {
 349                         ToolStripContentPanelRenderEventHandler eh = (ToolStripContentPanelRenderEventHandler)Events [RenderToolStripContentPanelBackgroundEvent];
 350                         if (eh != null)
 351                                 eh (this, e);
 352                 }
 353
 354                 protected virtual void OnRenderToolStripPanelBackground (ToolStripPanelRenderEventArgs e)
 355                 {
 356                         ToolStripPanelRenderEventHandler eh = (ToolStripPanelRenderEventHandler)Events [RenderToolStripPanelBackgroundEvent];
 357                         if (eh != null)
 358                                 eh (this, e);
 359                 }
 360
 361                 protected virtual void OnRenderToolStripStatusLabelBackground (ToolStripItemRenderEventArgs e)
 362                 {
 363                         ToolStripItemRenderEventHandler eh = (ToolStripItemRenderEventHandler)Events [RenderToolStripStatusLabelBackgroundEvent];
 364                         if (eh != null)
 365                                 eh (this, e);
 366                 }
 367                 #endregion
 368
 369                 #region Public Events
 370                 EventHandlerList events;
 371
 372                 EventHandlerList Events {
 373                         get {
 374                                 if (events == null)
 375                                         events = new EventHandlerList ();
 376                                 return events;
 377                         }
 378                 }
 379
 380                 static object RenderArrowEvent = new object ();
 381                 static object RenderButtonBackgroundEvent = new object ();
 382                 static object RenderDropDownButtonBackgroundEvent = new object ();
 383                 static object RenderGripEvent = new object ();
 384                 static object RenderImageMarginEvent = new object ();
 385                 static object RenderItemBackgroundEvent = new object ();
 386                 static object RenderItemCheckEvent = new object ();
 387                 static object RenderItemImageEvent = new object ();
 388                 static object RenderItemTextEvent = new object ();
 389                 static object RenderLabelBackgroundEvent = new object ();
 390                 static object RenderMenuItemBackgroundEvent = new object ();
 391                 static object RenderOverflowButtonBackgroundEvent = new object ();
 392                 static object RenderSeparatorEvent = new object ();
 393                 static object RenderSplitButtonBackgroundEvent = new object ();
 394                 static object RenderStatusStripSizingGripEvent = new object ();
 395                 static object RenderToolStripBackgroundEvent = new object ();
 396                 static object RenderToolStripBorderEvent = new object ();
 397                 static object RenderToolStripContentPanelBackgroundEvent = new object ();
 398                 static object RenderToolStripPanelBackgroundEvent = new object ();
 399                 static object RenderToolStripStatusLabelBackgroundEvent = new object ();
 400
 401                 public event ToolStripArrowRenderEventHandler RenderArrow {
 402                         add { Events.AddHandler (RenderArrowEvent, value); }
 403                         remove {Events.RemoveHandler (RenderArrowEvent, value); }
 404                 }
 405                 public event ToolStripItemRenderEventHandler RenderButtonBackground {
 406                         add { Events.AddHandler (RenderButtonBackgroundEvent, value); }
 407                         remove {Events.RemoveHandler (RenderButtonBackgroundEvent, value); }
 408                 }
 409                 public event ToolStripItemRenderEventHandler RenderDropDownButtonBackground {
 410                         add { Events.AddHandler (RenderDropDownButtonBackgroundEvent, value); }
 411                         remove {Events.RemoveHandler (RenderDropDownButtonBackgroundEvent, value); }
 412                 }
 413                 public event ToolStripGripRenderEventHandler RenderGrip {
 414                         add { Events.AddHandler (RenderGripEvent, value); }
 415                         remove {Events.RemoveHandler (RenderGripEvent, value); }
 416                 }
 417                 public event ToolStripRenderEventHandler RenderImageMargin {
 418                         add { Events.AddHandler (RenderImageMarginEvent, value); }
 419                         remove {Events.RemoveHandler (RenderImageMarginEvent, value); }
 420                 }
 421                 public event ToolStripItemRenderEventHandler RenderItemBackground {
 422                         add { Events.AddHandler (RenderItemBackgroundEvent, value); }
 423                         remove {Events.RemoveHandler (RenderItemBackgroundEvent, value); }
 424                 }
 425                 public event ToolStripItemImageRenderEventHandler RenderItemCheck {
 426                         add { Events.AddHandler (RenderItemCheckEvent, value); }
 427                         remove {Events.RemoveHandler (RenderItemCheckEvent, value); }
 428                 }
 429                 public event ToolStripItemImageRenderEventHandler RenderItemImage {
 430                         add { Events.AddHandler (RenderItemImageEvent, value); }
 431                         remove {Events.RemoveHandler (RenderItemImageEvent, value); }
 432                 }
 433                 public event ToolStripItemTextRenderEventHandler RenderItemText {
 434                         add { Events.AddHandler (RenderItemTextEvent, value); }
 435                         remove {Events.RemoveHandler (RenderItemTextEvent, value); }
 436                 }
 437                 public event ToolStripItemRenderEventHandler RenderLabelBackground {
 438                         add { Events.AddHandler (RenderLabelBackgroundEvent, value); }
 439                         remove {Events.RemoveHandler (RenderLabelBackgroundEvent, value); }
 440                 }
 441                 public event ToolStripItemRenderEventHandler RenderMenuItemBackground {
 442                         add { Events.AddHandler (RenderMenuItemBackgroundEvent, value); }
 443                         remove {Events.RemoveHandler (RenderMenuItemBackgroundEvent, value); }
 444                 }
 445                 public event ToolStripItemRenderEventHandler RenderOverflowButtonBackground {
 446                         add { Events.AddHandler (RenderOverflowButtonBackgroundEvent, value); }
 447                         remove {Events.RemoveHandler (RenderOverflowButtonBackgroundEvent, value); }
 448                 }
 449                 public event ToolStripSeparatorRenderEventHandler RenderSeparator {
 450                         add { Events.AddHandler (RenderSeparatorEvent, value); }
 451                         remove {Events.RemoveHandler (RenderSeparatorEvent, value); }
 452                 }
 453                 public event ToolStripItemRenderEventHandler RenderSplitButtonBackground {
 454                         add { Events.AddHandler (RenderSplitButtonBackgroundEvent, value); }
 455                         remove {Events.RemoveHandler (RenderSplitButtonBackgroundEvent, value); }
 456                 }
 457                 public event ToolStripRenderEventHandler RenderStatusStripSizingGrip {
 458                         add { Events.AddHandler (RenderStatusStripSizingGripEvent, value); }
 459                         remove {Events.RemoveHandler (RenderStatusStripSizingGripEvent, value); }
 460                 }
 461                 public event ToolStripRenderEventHandler RenderToolStripBackground {
 462                         add { Events.AddHandler (RenderToolStripBackgroundEvent, value); }
 463                         remove {Events.RemoveHandler (RenderToolStripBackgroundEvent, value); }
 464                 }
 465                 public event ToolStripRenderEventHandler RenderToolStripBorder {
 466                         add { Events.AddHandler (RenderToolStripBorderEvent, value); }
 467                         remove {Events.RemoveHandler (RenderToolStripBorderEvent, value); }
 468                 }
 469                 public event ToolStripContentPanelRenderEventHandler RenderToolStripContentPanelBackground {
 470                         add { Events.AddHandler (RenderToolStripContentPanelBackgroundEvent, value); }
 471                         remove {Events.RemoveHandler (RenderToolStripContentPanelBackgroundEvent, value); }
 472                 }
 473                 public event ToolStripPanelRenderEventHandler RenderToolStripPanelBackground {
 474                         add { Events.AddHandler (RenderToolStripPanelBackgroundEvent, value); }
 475                         remove {Events.RemoveHandler (RenderToolStripPanelBackgroundEvent, value); }
 476                 }
 477                 public event ToolStripItemRenderEventHandler RenderToolStripStatusLabelBackground {
 478                         add { Events.AddHandler (RenderToolStripStatusLabelBackgroundEvent, value); }
 479                         remove {Events.RemoveHandler (RenderToolStripStatusLabelBackgroundEvent, value); }
 480                 }
 481                 #endregion
 482
 483                 #region Private Methods
 484                 internal static Image CreateMirrorImage (Image normalImage)
 485                 {
 486                         if (normalImage == null)
 487                                 return null;
 488
 489                         Bitmap b = new Bitmap (normalImage);
 490                         b.RotateFlip (RotateFlipType.RotateNoneFlipX);
 491
 492                         return b;
 493                 }
 494
 495                 private void DrawBackground (Graphics g, Rectangle bounds, Image image, ImageLayout layout)
 496                 {
 497                         // Center and Tile don't matter if the image is larger than the control
 498                         if (layout == ImageLayout.Center || layout == ImageLayout.Tile)
 499                                 if (image.Size.Width >= bounds.Size.Width && image.Size.Height >= bounds.Size.Height)
 500                                         layout = ImageLayout.None;
 501
 502                         switch (layout) {
 503                                 case ImageLayout.None:
 504                                         g.DrawImageUnscaledAndClipped (image, bounds);
 505                                         break;
 506                                 case ImageLayout.Tile:
 507                                         int x = 0;
 508                                         int y = 0;
 509
 510                                         while (y < bounds.Height) {
 511                                                 while (x < bounds.Width) {
 512                                                         g.DrawImageUnscaledAndClipped (image, bounds);
 513                                                         x += image.Width;
 514                                                 }
 515                                                 x = 0;
 516                                                 y += image.Height;
 517                                         }
 518                                         break;
 519                                 case ImageLayout.Center:
 520                                         Rectangle r = new Rectangle ((bounds.Size.Width - image.Size.Width) / 2, (bounds.Size.Height - image.Size.Height) / 2, image.Width, image.Height);
 521                                         g.DrawImageUnscaledAndClipped (image, r);
 522                                         break;
 523                                 case ImageLayout.Stretch:
 524                                         g.DrawImage (image, bounds);
 525                                         break;
 526                                 case ImageLayout.Zoom:
 527                                         if (((float)image.Height / (float)image.Width) < ((float)bounds.Height / (float)bounds.Width)) {
 528                                                 Rectangle rzoom = new Rectangle (0, 0, bounds.Width, (int)((float)bounds.Width * ((float)image.Height / (float)image.Width)));
 529                                                 rzoom.Y = (bounds.Height - rzoom.Height)/ 2;
 530                                                 g.DrawImage (image, rzoom);
 531                                         } else {
 532                                                 Rectangle rzoom = new Rectangle (0, 0, (int)((float)bounds.Height * ((float)image.Width / (float)image.Height)), bounds.Height);
 533                                                 rzoom.X = (bounds.Width - rzoom.Width) / 2;
 534                                                 g.DrawImage (image, rzoom);
 535                                         }
 536                                         break;
 537                         }
 538                 }
 539
 540                 internal static void DrawRightArrow (Graphics g, Pen p, int x, int y)
 541                 {
 542                         g.DrawLine (p, x, y, x, y + 6);
 543                         g.DrawLine (p, x + 1, y + 1, x + 1, y + 5);
 544                         g.DrawLine (p, x + 2, y + 2, x + 2, y + 4);
 545                         g.DrawLine (p, x + 2, y + 3, x + 3, y + 3);
 546                 }
 547
 548                 internal static void DrawDownArrow (Graphics g, Pen p, int x, int y)
 549                 {
 550                         g.DrawLine (p, x + 1, y, x + 5, y);
 551                         g.DrawLine (p, x + 2, y + 1, x + 4, y + 1);
 552                         g.DrawLine (p, x + 3, y + 1, x + 3, y + 2);
 553                 }
 554
 555                 private void DrawSizingGrip (Graphics g, Rectangle rect)
 556                 {
 557                         DrawGripBox (g, rect.Right - 5, rect.Bottom - 5);
 558                         DrawGripBox (g, rect.Right - 9, rect.Bottom - 5);
 559                         DrawGripBox (g, rect.Right - 5, rect.Bottom - 9);
 560                         DrawGripBox (g, rect.Right - 13, rect.Bottom - 5);
 561                         DrawGripBox (g, rect.Right - 5, rect.Bottom - 13);
 562                         DrawGripBox (g, rect.Right - 9, rect.Bottom - 9);
 563                 }
 564
 565                 private void DrawGripBox (Graphics g, int x, int y)
 566                 {
 567                         g.DrawRectangle (Pens.White, x + 1, y + 1, 1, 1);
 568                         g.DrawRectangle (ThemeEngine.Current.ResPool.GetPen (Color.FromArgb (172, 168, 153)), x, y, 1, 1);
 569                 }
 570                 #endregion
 571         }
 572 }