mcs/class/Managed.Windows.Forms/System.Windows.Forms.Theming/Default/TabControlPainter.cs

   1 // Permission is hereby granted, free of charge, to any person obtaining\r
   2 // a copy of this software and associated documentation files (the\r
   3 // "Software"), to deal in the Software without restriction, including\r
   4 // without limitation the rights to use, copy, modify, merge, publish,\r
   5 // distribute, sublicense, and/or sell copies of the Software, and to\r
   6 // permit persons to whom the Software is furnished to do so, subject to\r
   7 // the following conditions:\r
   8 //\r
   9 // The above copyright notice and this permission notice shall be\r
  10 // included in all copies or substantial portions of the Software.\r
  11 //\r
  12 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,\r
  13 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\r
  14 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND\r
  15 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE\r
  16 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION\r
  17 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION\r
  18 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\r
  19 //\r
  20 // Copyright (c) 2007 Novell, Inc.\r
  21 //\r
  22 // Authors:\r
  23 //      Andreia Gaita (avidigal@novell.com)\r
  24 \r
  25 using System;\r
  26 using System.Drawing;\r
  27 using System.Drawing.Text;\r
  28 using System.Windows.Forms;\r
  29 \r
  30 namespace System.Windows.Forms.Theming.Default\r
  31 {\r
  32         /// <summary>\r
  33         /// Summary description for TabControl.\r
  34         /// </summary>\r
  35         internal class TabControlPainter {\r
  36                 protected SystemResPool ResPool { get { return ThemeEngine.Current.ResPool; } }\r
  37 \r
  38                 #region private\r
  39 \r
  40                 private Size    defaultItemSize;\r
  41                 private Point   defaultPadding;\r
  42                 private int             minimumTabWidth;\r
  43                 private Rectangle selectedTabDelta;\r
  44 \r
  45                 private Point   tabPanelOffset;\r
  46                 \r
  47                 private int             selectedSpacing;\r
  48 \r
  49                 private Size    rowSpacingNormal;\r
  50                 private Size    rowSpacingButtons;\r
  51                 private Size    rowSpacingFlatButtons;\r
  52                 private int             scrollerWidth;\r
  53                 private Point   focusRectSpacing;\r
  54                 private Rectangle tabPageSpacing;\r
  55                 private int             colSpacing;\r
  56                 private int             flatButtonSpacing;\r
  57 \r
  58                 private Point   imagePadding;\r
  59 \r
  60                 private StringFormat defaultFormatting;\r
  61 \r
  62                 private Rectangle borderThickness;\r
  63 \r
  64                 #endregion\r
  65 \r
  66                 #region Properties\r
  67 \r
  68                 public virtual Size DefaultItemSize {\r
  69                         get { return defaultItemSize; }\r
  70                         set { defaultItemSize = value; }\r
  71                 }\r
  72 \r
  73                 public virtual Point DefaultPadding {\r
  74                         get { return defaultPadding; }\r
  75                         set { defaultPadding = value; }\r
  76                 }\r
  77 \r
  78                 public virtual int MinimumTabWidth {\r
  79                         get { return minimumTabWidth; }\r
  80                         set { minimumTabWidth = value; }\r
  81                 }\r
  82 \r
  83                 public virtual Rectangle SelectedTabDelta {\r
  84                         get { return selectedTabDelta; }\r
  85                         set { selectedTabDelta = value; }\r
  86                 }\r
  87 \r
  88                 public virtual Point TabPanelOffset {\r
  89                         get { return tabPanelOffset; }\r
  90                         set { tabPanelOffset = value; }\r
  91                 }\r
  92 \r
  93                 public virtual int SelectedSpacing {\r
  94                         get { return selectedSpacing; }\r
  95                         set { selectedSpacing = value; }\r
  96                 }\r
  97 \r
  98                 public virtual Size RowSpacingNormal { \r
  99                         get { return rowSpacingNormal; }\r
 100                         set { rowSpacingNormal = value; }\r
 101                 }\r
 102 \r
 103                 public virtual Size RowSpacingButtons { \r
 104                         get { return rowSpacingButtons; }\r
 105                         set { rowSpacingButtons = value; }\r
 106                 }\r
 107 \r
 108                 public virtual Size RowSpacingFlatButtons { \r
 109                         get { return rowSpacingFlatButtons; }\r
 110                         set { rowSpacingFlatButtons = value; }\r
 111                 }\r
 112 \r
 113                 public virtual Point FocusRectSpacing {\r
 114                         get { return focusRectSpacing; }\r
 115                         set { focusRectSpacing = value; }\r
 116                 }\r
 117 \r
 118                 public virtual int ColSpacing { \r
 119                         get { return colSpacing; }\r
 120                         set { colSpacing = value; }\r
 121                 }\r
 122 \r
 123                 public virtual int FlatButtonSpacing { \r
 124                         get { return flatButtonSpacing; }\r
 125                         set { flatButtonSpacing = value; }\r
 126                 }\r
 127 \r
 128                 public virtual Rectangle TabPageSpacing {\r
 129                         get { return tabPageSpacing; }\r
 130                         set { tabPageSpacing = value; }\r
 131                 }\r
 132 \r
 133                 public virtual Point ImagePadding {\r
 134                         get { return imagePadding; }\r
 135                         set { imagePadding = value; }\r
 136                 }\r
 137 \r
 138                 public virtual StringFormat DefaultFormatting {\r
 139                         get { return defaultFormatting; }\r
 140                         set { defaultFormatting = value; }\r
 141                 }\r
 142 \r
 143                 public virtual Rectangle BorderThickness {\r
 144                         get { return borderThickness; }\r
 145                         set { borderThickness = value; }\r
 146                 }\r
 147 \r
 148                 public virtual int ScrollerWidth {\r
 149                         get { return scrollerWidth; }\r
 150                         set { scrollerWidth = value; }\r
 151                 }\r
 152 \r
 153                 public virtual Size RowSpacing (System.Windows.Forms.TabControl tab) {\r
 154                         switch (tab.Appearance) {\r
 155                                 case TabAppearance.Normal:\r
 156                                         return rowSpacingNormal;\r
 157                                 case TabAppearance.Buttons:\r
 158                                         return rowSpacingButtons;\r
 159                                 case TabAppearance.FlatButtons:\r
 160                                         return rowSpacingFlatButtons;\r
 161                                 default:\r
 162                                         throw new Exception ("Invalid Appearance value: " + tab.Appearance);\r
 163                         }\r
 164                 }\r
 165                 #endregion\r
 166 \r
 167                 public TabControlPainter ()\r
 168                 {\r
 169                         defaultItemSize = new Size (42, 21);\r
 170                         defaultPadding = new Point (6, 3);\r
 171                         selectedTabDelta = new Rectangle (2, 2, 4, 3);\r
 172                         selectedSpacing = 0;\r
 173 \r
 174                         rowSpacingNormal = new Size (0, 0);\r
 175                         rowSpacingButtons = new Size (3, 3);\r
 176                         rowSpacingFlatButtons = new Size (9, 3);\r
 177                         \r
 178                         colSpacing = 0;\r
 179 \r
 180                         minimumTabWidth = 42;\r
 181                         scrollerWidth = 17;\r
 182                         focusRectSpacing = new Point (2, 2);\r
 183                         tabPanelOffset = new Point (4, 0);\r
 184                         flatButtonSpacing = 8;\r
 185                         tabPageSpacing = new Rectangle (4, 2, 3, 4);\r
 186 \r
 187                         imagePadding = new Point (2, 3);\r
 188 \r
 189                         defaultFormatting = new StringFormat();\r
 190                         defaultFormatting.Alignment = StringAlignment.Near;\r
 191                         defaultFormatting.LineAlignment = StringAlignment.Near;\r
 192                         defaultFormatting.FormatFlags = StringFormatFlags.NoWrap | StringFormatFlags.NoClip;\r
 193                         defaultFormatting.HotkeyPrefix = HotkeyPrefix.Show;\r
 194 \r
 195                         borderThickness = new Rectangle (1, 1, 2, 2);\r
 196                 }\r
 197 \r
 198                 public virtual Rectangle GetLeftScrollRect (System.Windows.Forms.TabControl tab)\r
 199                 {\r
 200                         switch (tab.Alignment) {\r
 201                                 case TabAlignment.Top:\r
 202                                         return new Rectangle (tab.ClientRectangle.Right - (scrollerWidth * 2), tab.ClientRectangle.Top + 1, scrollerWidth, scrollerWidth);\r
 203                                 default:\r
 204                                         Rectangle panel_rect = GetTabPanelRect (tab);\r
 205                                         return new Rectangle (tab.ClientRectangle.Right - (scrollerWidth * 2), panel_rect.Bottom + 2, scrollerWidth, scrollerWidth);\r
 206                         }\r
 207                 }\r
 208 \r
 209                 public virtual Rectangle GetRightScrollRect (System.Windows.Forms.TabControl tab)\r
 210                 {\r
 211                         switch (tab.Alignment) {\r
 212                                 case TabAlignment.Top:\r
 213                                         return new Rectangle (tab.ClientRectangle.Right - (scrollerWidth), tab.ClientRectangle.Top + 1, scrollerWidth, scrollerWidth);\r
 214                                 default:\r
 215                                         Rectangle panel_rect = GetTabPanelRect (tab);\r
 216                                         return new Rectangle (tab.ClientRectangle.Right - (scrollerWidth), panel_rect.Bottom + 2, scrollerWidth, scrollerWidth);\r
 217                         }\r
 218                 }\r
 219 \r
 220                 public Rectangle GetDisplayRectangle (System.Windows.Forms.TabControl tab)\r
 221                 {\r
 222                         Rectangle ext = GetTabPanelRect (tab);\r
 223                         // Account for border size\r
 224                         return new Rectangle (ext.Left + tabPageSpacing.X, ext.Top + tabPageSpacing.Y, \r
 225                                 ext.Width - tabPageSpacing.X - tabPageSpacing.Width, ext.Height - tabPageSpacing.Y - tabPageSpacing.Height);\r
 226                 }\r
 227                 \r
 228                 public Rectangle GetTabPanelRect (System.Windows.Forms.TabControl tab)\r
 229                 {       \r
 230                         // Offset the tab page (panel) from the top corner\r
 231                         Rectangle res = new Rectangle (tab.ClientRectangle.X,\r
 232                                 tab.ClientRectangle.Y,\r
 233                                 tab.ClientRectangle.Width,\r
 234                                 tab.ClientRectangle.Height);\r
 235 \r
 236                         if (tab.TabCount == 0)\r
 237                                 return res;\r
 238 \r
 239                         int spacing = RowSpacing (tab).Height;\r
 240                         int tabOffset = (tab.ItemSize.Height + spacing - (selectedTabDelta.Height - selectedTabDelta.Y)) * tab.RowCount;\r
 241                         switch (tab.Alignment) {\r
 242                                 case TabAlignment.Top:\r
 243                                         res.Y += tabOffset;\r
 244                                         res.Height -= tabOffset;\r
 245                                         break;\r
 246                                 case TabAlignment.Bottom:\r
 247                                         res.Height -= tabOffset;\r
 248                                         break;\r
 249                                 case TabAlignment.Left:\r
 250                                         res.X += tabOffset;\r
 251                                         res.Width -= tabOffset;\r
 252                                         break;\r
 253                                 case TabAlignment.Right:\r
 254                                         res.Width -= tabOffset;\r
 255                                         break;\r
 256                         }\r
 257 \r
 258                         return res;\r
 259                 }\r
 260 \r
 261                 public virtual void Draw (Graphics dc, Rectangle area, TabControl tab)\r
 262                 {\r
 263                         DrawBackground (dc, area, tab);\r
 264 \r
 265                         int start = 0;\r
 266                         int end = tab.TabPages.Count;\r
 267                         int delta = 1;\r
 268 \r
 269                         if (tab.Alignment == TabAlignment.Top) {\r
 270                                 start = end;\r
 271                                 end = 0;\r
 272                                 delta = -1;\r
 273                         }\r
 274                         int counter = start;\r
 275                         for (; counter != end; counter += delta) {\r
 276                                 for (int i = tab.SliderPos; i < tab.TabPages.Count; i++) {\r
 277                                         if (i == tab.SelectedIndex)\r
 278                                                 continue;\r
 279                                         if (counter != tab.TabPages[i].Row)\r
 280                                                 continue;\r
 281                                         Rectangle rect = tab.GetTabRect (i);\r
 282                                         if (!rect.IntersectsWith (area))\r
 283                                                 continue;\r
 284                                         DrawTab (dc, tab.TabPages[i], tab, rect, false);\r
 285                                 }\r
 286                         }\r
 287 \r
 288                         if (tab.SelectedIndex != -1 && tab.SelectedIndex >= tab.SliderPos) {\r
 289                                 Rectangle rect = tab.GetTabRect (tab.SelectedIndex);\r
 290                                 if (rect.IntersectsWith (area))\r
 291                                         DrawTab (dc, tab.TabPages[tab.SelectedIndex], tab, rect, true);\r
 292                         }\r
 293 \r
 294                         if (tab.ShowSlider) {\r
 295                                 Rectangle right = GetRightScrollRect (tab);\r
 296                                 Rectangle left = GetLeftScrollRect (tab);\r
 297                                 ControlPaint.DrawScrollButton (dc, right, ScrollButton.Right, tab.RightSliderState);\r
 298                                 ControlPaint.DrawScrollButton (dc, left, ScrollButton.Left, tab.LeftSliderState);\r
 299                         }\r
 300                 }\r
 301 \r
 302                 protected virtual void DrawBackground (Graphics dc, Rectangle area, TabControl tab)\r
 303                 {\r
 304                         Brush brush = SystemBrushes.Control;\r
 305                         dc.FillRectangle (brush, area);\r
 306                         Rectangle panel_rect = GetTabPanelRect (tab);\r
 307 \r
 308                         if (tab.Appearance == TabAppearance.Normal) {\r
 309                                 ControlPaint.DrawBorder3D (dc, panel_rect, Border3DStyle.RaisedInner, Border3DSide.Left | Border3DSide.Top);\r
 310                                 ControlPaint.DrawBorder3D (dc, panel_rect, Border3DStyle.Raised, Border3DSide.Right | Border3DSide.Bottom);\r
 311                         }\r
 312                 }\r
 313 \r
 314                 protected virtual int DrawTab (Graphics dc, System.Windows.Forms.TabPage page, System.Windows.Forms.TabControl tab, Rectangle bounds, bool is_selected)\r
 315                 {\r
 316                         Rectangle interior;\r
 317                         int res = bounds.Width;\r
 318 \r
 319                         dc.FillRectangle (ResPool.GetSolidBrush (tab.BackColor), bounds);\r
 320 \r
 321                         if (tab.Appearance == TabAppearance.Buttons || tab.Appearance == TabAppearance.FlatButtons) {\r
 322                                 // Separators\r
 323                                 if (tab.Appearance == TabAppearance.FlatButtons) {\r
 324                                         int width = bounds.Width;\r
 325                                         bounds.Width += (flatButtonSpacing - 2);\r
 326                                         res = bounds.Width;\r
 327                                         if (tab.Alignment == TabAlignment.Top || tab.Alignment == TabAlignment.Bottom)\r
 328                                                 ThemeEngine.Current.CPDrawBorder3D (dc, bounds, Border3DStyle.Etched, Border3DSide.Right);\r
 329                                         else\r
 330                                                 ThemeEngine.Current.CPDrawBorder3D (dc, bounds, Border3DStyle.Etched, Border3DSide.Top);\r
 331                                         bounds.Width = width;\r
 332                                 }\r
 333 \r
 334                                 if (is_selected) {\r
 335                                         ThemeEngine.Current.CPDrawBorder3D (dc, bounds, Border3DStyle.Sunken, Border3DSide.Left | Border3DSide.Right | Border3DSide.Top | Border3DSide.Bottom);\r
 336                                 } else if (tab.Appearance != TabAppearance.FlatButtons) {\r
 337                                         ThemeEngine.Current.CPDrawBorder3D (dc, bounds, Border3DStyle.Raised, Border3DSide.Left | Border3DSide.Right | Border3DSide.Top | Border3DSide.Bottom);\r
 338                                 }\r
 339 \r
 340 \r
 341                         } else {\r
 342                                 CPColor cpcolor = ResPool.GetCPColor (tab.BackColor);\r
 343 \r
 344                                 Pen light = ResPool.GetPen (cpcolor.LightLight);\r
 345 \r
 346                                 switch (tab.Alignment) {\r
 347 \r
 348                                         case TabAlignment.Top:\r
 349 \r
 350                                                 dc.DrawLine (light, bounds.Left, bounds.Bottom - 1, bounds.Left, bounds.Top + 3);\r
 351                                                 dc.DrawLine (light, bounds.Left, bounds.Top + 3, bounds.Left + 2, bounds.Top);\r
 352                                                 dc.DrawLine (light, bounds.Left + 2, bounds.Top, bounds.Right - 3, bounds.Top);\r
 353 \r
 354                                                 dc.DrawLine (SystemPens.ControlDark, bounds.Right - 2, bounds.Top + 1, bounds.Right - 2, bounds.Bottom - 1);\r
 355                                                 dc.DrawLine (SystemPens.ControlDarkDark, bounds.Right - 2, bounds.Top + 1, bounds.Right - 1, bounds.Top + 2);\r
 356                                                 dc.DrawLine (SystemPens.ControlDarkDark, bounds.Right - 1, bounds.Top + 2, bounds.Right - 1, bounds.Bottom - 1);\r
 357                                                 break;\r
 358 \r
 359                                         case TabAlignment.Bottom:\r
 360 \r
 361                                                 dc.DrawLine (light, bounds.Left, bounds.Top, bounds.Left, bounds.Bottom - 2);\r
 362                                                 dc.DrawLine (light, bounds.Left, bounds.Bottom - 2, bounds.Left + 3, bounds.Bottom);\r
 363                                                 \r
 364                                                 dc.DrawLine (SystemPens.ControlDarkDark, bounds.Left + 3, bounds.Bottom, bounds.Right - 3, bounds.Bottom);\r
 365                                                 dc.DrawLine (SystemPens.ControlDark, bounds.Left + 3, bounds.Bottom - 1, bounds.Right - 3, bounds.Bottom - 1);\r
 366 \r
 367                                                 dc.DrawLine (SystemPens.ControlDark, bounds.Right - 2, bounds.Bottom - 1, bounds.Right - 2, bounds.Top + 1);\r
 368                                                 dc.DrawLine (SystemPens.ControlDarkDark, bounds.Right - 2, bounds.Bottom - 1, bounds.Right - 1, bounds.Bottom - 2);\r
 369                                                 dc.DrawLine (SystemPens.ControlDarkDark, bounds.Right - 1, bounds.Bottom - 2, bounds.Right - 1, bounds.Top + 1);\r
 370 \r
 371                                                 break;\r
 372 \r
 373                                         case TabAlignment.Left:\r
 374 \r
 375                                                 dc.DrawLine (light, bounds.Left - 2, bounds.Top, bounds.Right, bounds.Top);\r
 376                                                 dc.DrawLine (light, bounds.Left, bounds.Top + 2, bounds.Left - 2, bounds.Top);\r
 377                                                 dc.DrawLine (light, bounds.Left, bounds.Top + 2, bounds.Left, bounds.Bottom - 2);\r
 378 \r
 379                                                 dc.DrawLine (SystemPens.ControlDark, bounds.Left, bounds.Bottom - 2, bounds.Left + 2, bounds.Bottom - 1);\r
 380 \r
 381                                                 dc.DrawLine (SystemPens.ControlDark, bounds.Left + 2, bounds.Bottom - 1, bounds.Right, bounds.Bottom - 1);\r
 382                                                 dc.DrawLine (SystemPens.ControlDarkDark, bounds.Left + 2, bounds.Bottom, bounds.Right, bounds.Bottom);\r
 383 \r
 384                                                 break;\r
 385 \r
 386                                         default: // TabAlignment.Right\r
 387 \r
 388                                                 dc.DrawLine (light, bounds.Left, bounds.Top, bounds.Right - 3, bounds.Top);\r
 389                                                 dc.DrawLine (light, bounds.Right - 3, bounds.Top, bounds.Right, bounds.Top + 3);\r
 390 \r
 391                                                 dc.DrawLine (SystemPens.ControlDark, bounds.Right - 1, bounds.Top + 1, bounds.Right - 1, bounds.Bottom - 1);\r
 392                                                 dc.DrawLine (SystemPens.ControlDark, bounds.Left, bounds.Bottom - 1, bounds.Right - 2, bounds.Bottom - 1);\r
 393 \r
 394                                                 dc.DrawLine (SystemPens.ControlDarkDark, bounds.Right, bounds.Top + 3, bounds.Right, bounds.Bottom - 3);\r
 395                                                 dc.DrawLine (SystemPens.ControlDarkDark, bounds.Left, bounds.Bottom, bounds.Right - 3, bounds.Bottom);\r
 396 \r
 397                                                 break;\r
 398                                 }\r
 399                         }\r
 400 \r
 401                         interior = new Rectangle (bounds.Left + focusRectSpacing.X + borderThickness.Left, \r
 402                                 bounds.Top + focusRectSpacing.Y +  + borderThickness.Top,\r
 403                                 bounds.Width - (focusRectSpacing.X * 2) - borderThickness.Width, \r
 404                                 bounds.Height - (focusRectSpacing.Y * 2) - borderThickness.Height);\r
 405 \r
 406                         if (tab.DrawMode == TabDrawMode.Normal && page.Text != null) {\r
 407                                 if (tab.Alignment == TabAlignment.Left) {\r
 408                                         dc.TranslateTransform (bounds.Left, bounds.Bottom);\r
 409                                         dc.RotateTransform (-90);\r
 410                                         dc.DrawString (page.Text, page.Font,\r
 411                                                 SystemBrushes.ControlText, \r
 412                                                 tab.Padding.X - 2, // drawstring adds some extra unwanted leading spaces, so trimming\r
 413                                                 tab.Padding.Y,\r
 414                                                 defaultFormatting);\r
 415                                         dc.ResetTransform ();\r
 416                                 } else if (tab.Alignment == TabAlignment.Right) {\r
 417                                         dc.TranslateTransform (bounds.Right, bounds.Top);\r
 418                                         dc.RotateTransform (90);\r
 419                                         dc.DrawString (page.Text, page.Font,\r
 420                                                 SystemBrushes.ControlText, \r
 421                                                 tab.Padding.X - 2, // drawstring adds some extra unwanted leading spaces, so trimming\r
 422                                                 tab.Padding.Y,\r
 423                                                 defaultFormatting);\r
 424                                         dc.ResetTransform ();\r
 425                                 } else {\r
 426                                         Rectangle str_rect = interior;\r
 427 \r
 428                                         if (tab.ImageList != null && page.ImageIndex >= 0 && page.ImageIndex < tab.ImageList.Images.Count) {\r
 429                                                 int image_y = interior.Y + (interior.Height - tab.ImageList.ImageSize.Height) / 2;\r
 430                                                 tab.ImageList.Draw (dc, new Point (interior.X, image_y), page.ImageIndex);\r
 431                                                 str_rect.X += tab.ImageList.ImageSize.Width + 2;\r
 432                                                 str_rect.Width -= tab.ImageList.ImageSize.Width + 2;\r
 433                                         }\r
 434                                         dc.DrawString (page.Text, page.Font,\r
 435                                                 SystemBrushes.ControlText,\r
 436                                                 str_rect, \r
 437                                                 defaultFormatting);\r
 438 \r
 439                                 }\r
 440                         } else if (page.Text != null) {\r
 441                                 DrawItemState state = DrawItemState.None;\r
 442                                 if (page == tab.SelectedTab)\r
 443                                         state |= DrawItemState.Selected;\r
 444                                 DrawItemEventArgs e = new DrawItemEventArgs (dc,\r
 445                                         tab.Font, bounds, tab.IndexForTabPage (page),\r
 446                                         state, page.ForeColor, page.BackColor);\r
 447                                 tab.OnDrawItemInternal (e);\r
 448                                 return res;\r
 449                         }\r
 450 \r
 451                         if (page.Parent.Focused && is_selected) {\r
 452                                 ThemeEngine.Current.CPDrawFocusRectangle (dc, interior, tab.ForeColor, tab.BackColor);\r
 453                         }\r
 454 \r
 455                         return res;\r
 456                 }\r
 457         }\r
 458 }\r