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

   1 // System.Windows.Forms.ToolBar.cs
   2 //
   3 // Permission is hereby granted, free of charge, to any person obtaining
   4 // a copy of this software and associated documentation files (the
   5 // "Software"), to deal in the Software without restriction, including
   6 // without limitation the rights to use, copy, modify, merge, publish,
   7 // distribute, sublicense, and/or sell copies of the Software, and to
   8 // permit persons to whom the Software is furnished to do so, subject to
   9 // the following conditions:
  10 //
  11 // The above copyright notice and this permission notice shall be
  12 // included in all copies or substantial portions of the Software.
  13 //
  14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  15 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  16 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  17 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  18 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  19 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  20 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  21 //
  22 // Author:
  23 //      Ravindra (rkumar@novell.com)
  24 //      Mike Kestner <mkestner@novell.com>
  25 //
  26 // TODO:
  27 //   - Tooltip
  28 //
  29 // Copyright (C) 2004-2006  Novell, Inc. (http://www.novell.com)
  30 //
  31
  32
  33 // NOT COMPLETE
  34
  35 using System.Collections;
  36 using System.ComponentModel;
  37 using System.ComponentModel.Design;
  38 using System.Drawing;
  39 using System.Drawing.Imaging;
  40 using System.Runtime.InteropServices;
  41
  42 namespace System.Windows.Forms
  43 {
  44         [DefaultEvent ("ButtonClick")]
  45         [DefaultProperty ("Buttons")]
  46         [Designer ("System.Windows.Forms.Design.ToolBarDesigner, " + Consts.AssemblySystem_Design, "System.ComponentModel.Design.IDesigner")]
  47         public class ToolBar : Control
  48         {
  49                 #region Instance Variables
  50                 bool size_specified = false;
  51                 ToolBarButton current_button;
  52                 #endregion Instance Variables
  53
  54                 #region Events
  55                 [Browsable (false)]
  56                 [EditorBrowsable (EditorBrowsableState.Never)]
  57                 public new event EventHandler BackColorChanged {
  58                         add { base.BackColorChanged += value; }
  59                         remove { base.BackColorChanged -= value; }
  60                 }
  61
  62                 [Browsable (false)]
  63                 [EditorBrowsable (EditorBrowsableState.Never)]
  64                 public new event EventHandler BackgroundImageChanged {
  65                         add { base.BackgroundImageChanged += value; }
  66                         remove { base.BackgroundImageChanged -= value; }
  67                 }
  68
  69                 public event ToolBarButtonClickEventHandler ButtonClick;
  70                 public event ToolBarButtonClickEventHandler ButtonDropDown;
  71
  72                 [Browsable (false)]
  73                 [EditorBrowsable (EditorBrowsableState.Never)]
  74                 public new event EventHandler ForeColorChanged {
  75                         add { base.ForeColorChanged += value; }
  76                         remove { base.ForeColorChanged -= value; }
  77                 }
  78
  79                 [Browsable (false)]
  80                 [EditorBrowsable (EditorBrowsableState.Never)]
  81                 public new event EventHandler ImeModeChanged {
  82                         add { base.ImeModeChanged += value; }
  83                         remove { base.ImeModeChanged -= value; }
  84                 }
  85
  86                 [Browsable (false)]
  87                 [EditorBrowsable (EditorBrowsableState.Never)]
  88                 public new event PaintEventHandler Paint {
  89                         add { base.Paint += value; }
  90                         remove { base.Paint -= value; }
  91                 }
  92
  93                 [Browsable (false)]
  94                 [EditorBrowsable (EditorBrowsableState.Never)]
  95                 public new event EventHandler RightToLeftChanged {
  96                         add { base.RightToLeftChanged += value; }
  97                         remove { base.RightToLeftChanged -= value; }
  98                 }
  99
 100                 [Browsable (false)]
 101                 [EditorBrowsable (EditorBrowsableState.Never)]
 102                 public new event EventHandler TextChanged {
 103                         add { base.TextChanged += value; }
 104                         remove { base.TextChanged -= value; }
 105                 }
 106                 #endregion Events
 107
 108                 #region Constructor
 109                 public ToolBar ()
 110                 {
 111                         background_color = ThemeEngine.Current.DefaultControlBackColor;
 112                         foreground_color = ThemeEngine.Current.DefaultControlForeColor;
 113                         buttons = new ToolBarButtonCollection (this);
 114                         dock_style = DockStyle.Top;
 115
 116                         MouseDown += new MouseEventHandler (ToolBar_MouseDown);
 117                         MouseLeave += new EventHandler (ToolBar_MouseLeave);
 118                         MouseMove += new MouseEventHandler (ToolBar_MouseMove);
 119                         MouseUp += new MouseEventHandler (ToolBar_MouseUp);
 120
 121                         SetStyle (ControlStyles.UserPaint, false);
 122                         SetStyle (ControlStyles.FixedHeight, true);
 123                 }
 124                 #endregion Constructor
 125
 126                 #region protected Properties
 127                 protected override CreateParams CreateParams
 128                 {
 129                         get { return base.CreateParams; }
 130                 }
 131
 132                 protected override ImeMode DefaultImeMode {
 133                         get { return ImeMode.Disable; }
 134                 }
 135
 136                 protected override Size DefaultSize {
 137                         get { return ThemeEngine.Current.ToolBarDefaultSize; }
 138                 }
 139                 #endregion
 140
 141                 ToolBarAppearance appearance = ToolBarAppearance.Normal;
 142
 143                 #region Public Properties
 144                 [DefaultValue (ToolBarAppearance.Normal)]
 145                 [Localizable (true)]
 146                 public ToolBarAppearance Appearance {
 147                         get { return appearance; }
 148                         set {
 149                                 if (value == appearance)
 150                                         return;
 151
 152                                 appearance = value;
 153                                 Redraw (false);
 154                         }
 155                 }
 156
 157                 bool autosize = true;
 158
 159                 [DefaultValue (true)]
 160                 [Localizable (true)]
 161                 public bool AutoSize {
 162                         get { return autosize; }
 163                         set {
 164                                 if (value == autosize)
 165                                         return;
 166
 167                                 autosize = value;
 168                                 Redraw (true);
 169                         }
 170                 }
 171
 172                 [Browsable (false)]
 173                 [EditorBrowsable (EditorBrowsableState.Never)]
 174                 public override Color BackColor {
 175                         get { return background_color; }
 176                         set {
 177                                 if (value == background_color)
 178                                         return;
 179
 180                                 background_color = value;
 181                                 OnBackColorChanged (EventArgs.Empty);
 182                                 Redraw (false);
 183                         }
 184                 }
 185
 186                 [Browsable (false)]
 187                 [EditorBrowsable (EditorBrowsableState.Never)]
 188                 public override Image BackgroundImage {
 189                         get { return background_image; }
 190                         set {
 191                                 if (value == background_image)
 192                                         return;
 193
 194                                 background_image = value;
 195                                 OnBackgroundImageChanged (EventArgs.Empty);
 196                                 Redraw (false);
 197                         }
 198                 }
 199
 200                 [DefaultValue (BorderStyle.None)]
 201                 [DispIdAttribute (-504)]
 202                 public BorderStyle BorderStyle {
 203                         get { return InternalBorderStyle; }
 204                         set { InternalBorderStyle = value; }
 205                 }
 206
 207                 ToolBarButtonCollection buttons;
 208
 209                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 210                 [Localizable (true)]
 211                 [MergableProperty (false)]
 212                 public ToolBarButtonCollection Buttons {
 213                         get { return buttons; }
 214                 }
 215
 216                 Size button_size;
 217
 218                 [Localizable (true)]
 219                 [RefreshProperties (RefreshProperties.All)]
 220                 public Size ButtonSize {
 221                         get {
 222                                 if (button_size.IsEmpty) {
 223                                         if (buttons.Count == 0)
 224                                                 return new Size (39, 36);
 225                                         else
 226                                                 return CalcButtonSize ();
 227                                 }
 228                                 return button_size;
 229                         }
 230                         set {
 231                                 size_specified = true;
 232                                 if (button_size == value)
 233                                         return;
 234
 235                                 button_size = value;
 236                                 Redraw (true);
 237                         }
 238                 }
 239
 240                 bool divider = true;
 241
 242                 [DefaultValue (true)]
 243                 public bool Divider {
 244                         get { return divider; }
 245                         set {
 246                                 if (value == divider)
 247                                         return;
 248
 249                                 divider = value;
 250                                 Redraw (false);
 251                         }
 252                 }
 253
 254                 [DefaultValue (DockStyle.Top)]
 255                 [Localizable (true)]
 256                 public override DockStyle Dock {
 257                         get { return base.Dock; }
 258                         set { base.Dock = value; }
 259                 }
 260
 261                 bool drop_down_arrows = false;
 262
 263                 [DefaultValue (false)]
 264                 [Localizable (true)]
 265                 public bool DropDownArrows {
 266                         get { return drop_down_arrows; }
 267                         set {
 268                                 if (value == drop_down_arrows)
 269                                         return;
 270
 271                                 drop_down_arrows = value;
 272                                 Redraw (true);
 273                         }
 274                 }
 275
 276                 [Browsable (false)]
 277                 [EditorBrowsable (EditorBrowsableState.Never)]
 278                 public override Color ForeColor {
 279                         get { return foreground_color; }
 280                         set {
 281                                 if (value == foreground_color)
 282                                         return;
 283
 284                                 foreground_color = value;
 285                                 OnForeColorChanged (EventArgs.Empty);
 286                                 Redraw (false);
 287                         }
 288                 }
 289
 290                 ImageList image_list;
 291
 292                 [DefaultValue (null)]
 293                 public ImageList ImageList {
 294                         get { return image_list; }
 295                         set { image_list = value; }
 296                 }
 297
 298                 [Browsable (false)]
 299                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 300                 [EditorBrowsable (EditorBrowsableState.Advanced)]
 301                 public Size ImageSize {
 302                         get {
 303                                 if (ImageList == null)
 304                                         return Size.Empty;
 305
 306                                 return ImageList.ImageSize;
 307                         }
 308                 }
 309
 310                 ImeMode ime_mode;
 311
 312                 [Browsable (false)]
 313                 [EditorBrowsable (EditorBrowsableState.Never)]
 314                 public new ImeMode ImeMode {
 315                         get { return ime_mode; }
 316                         set {
 317                                 if (value == ime_mode)
 318                                         return;
 319
 320                                 ime_mode = value;
 321                                 OnImeModeChanged (EventArgs.Empty);
 322                         }
 323                 }
 324
 325                 [Browsable (false)]
 326                 [EditorBrowsable (EditorBrowsableState.Never)]
 327                 public override RightToLeft RightToLeft {
 328                         get { return base.RightToLeft; }
 329                         set {
 330                                 if (value == base.RightToLeft)
 331                                         return;
 332
 333                                 base.RightToLeft = value;
 334                                 OnRightToLeftChanged (EventArgs.Empty);
 335                         }
 336                 }
 337
 338                 bool show_tooltips = false;
 339
 340                 [DefaultValue (false)]
 341                 [Localizable (true)]
 342                 public bool ShowToolTips {
 343                         get { return show_tooltips; }
 344                         set { show_tooltips = value; }
 345                 }
 346
 347                 [DefaultValue (false)]
 348                 public new bool TabStop {
 349                         get { return base.TabStop; }
 350                         set { base.TabStop = value; }
 351                 }
 352
 353                 [Bindable (false)]
 354                 [Browsable (false)]
 355                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 356                 [EditorBrowsable (EditorBrowsableState.Never)]
 357                 public override string Text {
 358                         get { return text; }
 359                         set {
 360                                 if (value == text)
 361                                         return;
 362
 363                                 text = value;
 364                                 Redraw (true);
 365                                 OnTextChanged (EventArgs.Empty);
 366                         }
 367                 }
 368
 369                 ToolBarTextAlign text_alignment = ToolBarTextAlign.Underneath;
 370
 371                 [DefaultValue (ToolBarTextAlign.Underneath)]
 372                 [Localizable (true)]
 373                 public ToolBarTextAlign TextAlign {
 374                         get { return text_alignment; }
 375                         set {
 376                                 if (value == text_alignment)
 377                                         return;
 378
 379                                 text_alignment = value;
 380                                 Redraw (true);
 381                         }
 382                 }
 383
 384                 bool wrappable = true;
 385
 386                 [DefaultValue (true)]
 387                 [Localizable (true)]
 388                 public bool Wrappable {
 389                         get { return wrappable; }
 390                         set {
 391                                 if (value == wrappable)
 392                                         return;
 393
 394                                 wrappable = value;
 395                                 Redraw (true);
 396                         }
 397                 }
 398                 #endregion Public Properties
 399
 400                 #region Public Methods
 401                 public override string ToString ()
 402                 {
 403                         int count = this.Buttons.Count;
 404
 405                         if (count == 0)
 406                                 return string.Format ("System.Windows.Forms.ToolBar, Button.Count: 0");
 407                         else
 408                                 return string.Format ("System.Windows.Forms.ToolBar, Button.Count: {0}, Buttons[0]: {1}",
 409                                                       count, this.Buttons [0].ToString ());
 410                 }
 411                 #endregion Public Methods
 412
 413                 #region Protected Methods
 414                 protected override void CreateHandle ()
 415                 {
 416                         base.CreateHandle ();
 417                 }
 418
 419                 protected override void Dispose (bool disposing)
 420                 {
 421                         if (disposing)
 422                                 ImageList = null;
 423
 424                         base.Dispose (disposing);
 425                 }
 426
 427                 protected virtual void OnButtonClick (ToolBarButtonClickEventArgs e)
 428                 {
 429                         if (e.Button.Style == ToolBarButtonStyle.ToggleButton) {
 430                                 if (! e.Button.Pushed)
 431                                         e.Button.Pushed = true;
 432                                 else
 433                                         e.Button.Pushed = false;
 434                         }
 435                         e.Button.pressed = false;
 436
 437                         Invalidate (e.Button.Rectangle);
 438                         Redraw (false);
 439
 440                         if (ButtonClick != null)
 441                                 ButtonClick (this, e);
 442                 }
 443
 444                 protected virtual void OnButtonDropDown (ToolBarButtonClickEventArgs e)
 445                 {
 446                         if (ButtonDropDown != null)
 447                                 ButtonDropDown (this, e);
 448
 449                         if (e.Button.DropDownMenu == null)
 450                                 return;
 451
 452                         Point loc = new Point (e.Button.Rectangle.X + 1, e.Button.Rectangle.Bottom + 1);
 453                         ((ContextMenu) e.Button.DropDownMenu).Show (this, loc);
 454
 455                         e.Button.dd_pressed = false;
 456                         Invalidate (e.Button.Rectangle);
 457                 }
 458
 459                 protected override void OnFontChanged (EventArgs e)
 460                 {
 461                         base.OnFontChanged (e);
 462                         Redraw (true);
 463                 }
 464
 465                 protected override void OnHandleCreated (EventArgs e)
 466                 {
 467                         base.OnHandleCreated (e);
 468                 }
 469
 470                 protected override void OnResize (EventArgs e)
 471                 {
 472                         base.OnResize (e);
 473
 474                         if (Width <= 0 || Height <= 0 || !Visible)
 475                                 return;
 476
 477                         Redraw (true);
 478                 }
 479
 480                 protected override void SetBoundsCore (int x, int y, int width, int height, BoundsSpecified specified)
 481                 {
 482                         base.SetBoundsCore (x, y, width, height, specified);
 483                 }
 484
 485                 protected override void WndProc (ref Message m)
 486                 {
 487                         base.WndProc (ref m);
 488                 }
 489
 490                 #endregion Protected Methods
 491
 492                 #region Private Methods
 493                 private void ToolBar_MouseDown (object sender, MouseEventArgs me)
 494                 {
 495                         if (!Enabled)
 496                                 return;
 497
 498                         Point loc = new Point (me.X, me.Y);
 499
 500                         // draw the pushed button
 501                         foreach (ToolBarButton button in buttons) {
 502                                 if (button.Enabled && button.Rectangle.Contains (loc)) {
 503                                         // Mark the DropDown rect as pressed.
 504                                         // We don't redraw the dropdown rect.
 505                                         if (button.Style == ToolBarButtonStyle.DropDownButton) {
 506                                                 Rectangle rect = button.Rectangle;
 507                                                 rect.Width = ThemeEngine.Current.ToolBarDropDownWidth;
 508                                                 rect.X = button.Rectangle.Right - rect.Width;
 509                                                 if (rect.Contains (loc)) {
 510                                                         if (button.DropDownMenu != null) {
 511                                                                 button.dd_pressed = true;
 512                                                                 Invalidate (rect);
 513                                                         }
 514                                                         break;
 515                                                 }
 516                                         }
 517                                         button.pressed = true;
 518                                         button.inside = true;
 519                                         Invalidate (button.Rectangle);
 520                                         break;
 521                                 }
 522                         }
 523                 }
 524
 525                 private void ToolBar_MouseUp (object sender, MouseEventArgs me)
 526                 {
 527                         if (!Enabled)
 528                                 return;
 529
 530                         Point loc = new Point (me.X, me.Y);
 531
 532                         // draw the normal button
 533                         foreach (ToolBarButton button in buttons) {
 534                                 if (button.Enabled && button.Rectangle.Contains (loc)) {
 535                                         if (button.Style == ToolBarButtonStyle.DropDownButton) {
 536                                                 Rectangle ddRect = button.Rectangle;
 537                                                 ddRect.Width = ThemeEngine.Current.ToolBarDropDownWidth;
 538                                                 ddRect.X = button.Rectangle.Right - ddRect.Width;
 539                                                 if (ddRect.Contains (loc)) {
 540                                                         if (button.dd_pressed)
 541                                                                 OnButtonDropDown (new ToolBarButtonClickEventArgs (button));
 542                                                         continue;
 543                                                 }
 544                                         }
 545                                         // Fire a ButtonClick
 546                                         if (button.pressed)
 547                                                 OnButtonClick (new ToolBarButtonClickEventArgs (button));
 548                                 } else if (button.pressed) {
 549                                         button.pressed = false;
 550                                         Invalidate (button.Rectangle);
 551                                 }
 552                         }
 553                 }
 554
 555                 private void ToolBar_MouseLeave (object sender, EventArgs e)
 556                 {
 557                         if (!Enabled || appearance != ToolBarAppearance.Flat || current_button == null)
 558                                 return;
 559
 560                         if (current_button.Hilight) {
 561                                 current_button.Hilight = false;
 562                                 Invalidate (current_button.Rectangle);
 563                                 Redraw (false);
 564                         }
 565                         current_button = null;
 566                 }
 567
 568                 private void ToolBar_MouseMove (object sender, MouseEventArgs me)
 569                 {
 570                         if (!Enabled)
 571                                 return;
 572
 573                         Point loc = new Point (me.X, me.Y);
 574
 575                         if (this.Capture) {
 576                                 // If the button was pressed and we leave, release the
 577                                 // button press and vice versa
 578                                 foreach (ToolBarButton button in buttons) {
 579                                         if (button.pressed &&
 580                                             (button.inside != button.Rectangle.Contains (loc))) {
 581                                                 button.inside = button.Rectangle.Contains (loc);
 582                                                 button.Hilight = false;
 583                                                 Invalidate (button.Rectangle);
 584                                                 Redraw (false);
 585                                                 break;
 586                                         }
 587                                 }
 588                         }
 589                         // following is only for flat style toolbar
 590                         else if (appearance == ToolBarAppearance.Flat) {
 591                                 if (current_button != null && current_button.Rectangle.Contains (loc)) {
 592                                         if (current_button.Hilight || current_button.Pushed)
 593                                                 return;
 594                                         current_button.Hilight = true;
 595                                         Invalidate (current_button.Rectangle);
 596                                         Redraw (false);
 597                                 }
 598                                 else {
 599                                         foreach (ToolBarButton button in buttons) {
 600                                                 if (button.Rectangle.Contains (loc) && button.Enabled) {
 601                                                         current_button = button;
 602                                                         if (current_button.Hilight || current_button.Pushed)
 603                                                                 continue;
 604                                                         current_button.Hilight = true;
 605                                                         Invalidate (current_button.Rectangle);
 606                                                         Redraw (false);
 607                                                 }
 608                                                 else if (button.Hilight) {
 609                                                         button.Hilight = false;
 610                                                         Invalidate (button.Rectangle);
 611                                                         Redraw (false);
 612                                                 }
 613                                         }
 614                                 }
 615                         }
 616                 }
 617
 618                 internal override void OnPaintInternal (PaintEventArgs pevent)
 619                 {
 620                         ThemeEngine.Current.DrawToolBar (pevent.Graphics, pevent.ClipRectangle, this);
 621                 }
 622
 623                 internal void Redraw (bool recalculate)
 624                 {
 625                         if (recalculate)
 626                                 Layout ();
 627
 628                         Refresh ();
 629                 }
 630
 631                 private Size CalcButtonSize ()
 632                 {
 633                         String longestText = buttons [0].Text;
 634                         for (int i = 1; i < buttons.Count; i++) {
 635                                 if (buttons[i].Text.Length > longestText.Length)
 636                                         longestText = buttons[i].Text;
 637                         }
 638
 639                         SizeF sz = this.DeviceContext.MeasureString (longestText, this.Font);
 640                         Size size = new Size ((int) Math.Ceiling (sz.Width), (int) Math.Ceiling (sz.Height));
 641
 642                         if (ImageList != null) {
 643                                 // adjustment for the image grip
 644                                 int imgWidth = this.ImageSize.Width + 2 * ThemeEngine.Current.ToolBarImageGripWidth;
 645                                 int imgHeight = this.ImageSize.Height + 2 * ThemeEngine.Current.ToolBarImageGripWidth;
 646
 647                                 if (text_alignment == ToolBarTextAlign.Right) {
 648                                         size.Width = imgWidth + size.Width;
 649                                         size.Height = (size.Height > imgHeight) ? size.Height : imgHeight;
 650                                 }
 651                                 else {
 652                                         size.Height = imgHeight + size.Height;
 653                                         size.Width = (size.Width > imgWidth) ? size.Width : imgWidth;
 654                                 }
 655                         }
 656                         return size;
 657                 }
 658
 659                 void Layout ()
 660                 {
 661                         Theme theme = ThemeEngine.Current;
 662                         int ht = ButtonSize.Height + theme.ToolBarGripWidth;
 663                         int x = theme.ToolBarGripWidth;
 664                         int y = theme.ToolBarGripWidth;
 665
 666                         if (Wrappable) {
 667                                 int separator_index = -1;
 668
 669                                 for (int i = 0; i < buttons.Count; i++) {
 670                                         ToolBarButton button = buttons [i];
 671
 672                                         if (!button.Visible)
 673                                                 continue;
 674
 675                                         if (size_specified)
 676                                                 button.Layout (ButtonSize);
 677                                         else
 678                                                 button.Layout ();
 679
 680                                         bool is_separator = button.Style == ToolBarButtonStyle.Separator;
 681
 682                                         if (x + button.Rectangle.Width < Width || is_separator) {
 683                                                 button.Location = new Point (x, y);
 684                                                 x += button.Rectangle.Width;
 685                                                 if (is_separator)
 686                                                         separator_index = i;
 687                                         } else if (separator_index > 0) {
 688                                                 i = separator_index;
 689                                                 separator_index = -1;
 690                                                 x = theme.ToolBarGripWidth;
 691                                                 y += ht;
 692                                         } else {
 693                                                 x = theme.ToolBarGripWidth;
 694                                                 y += ht;
 695                                                 button.Location = new Point (x, y);
 696                                                 x += button.Rectangle.Width;
 697                                         }
 698                                 }
 699                                 if (AutoSize)
 700                                         Height = y + ht;
 701                         } else {
 702                                 if (AutoSize)
 703                                         Height = ht;
 704                                 else
 705                                         Height = DefaultSize.Height;
 706                                 foreach (ToolBarButton button in buttons) {
 707                                         if (size_specified)
 708                                                 button.Layout (ButtonSize);
 709                                         else
 710                                                 button.Layout ();
 711                                         button.Location = new Point (x, y);
 712                                         x += button.Rectangle.Width;
 713                                 }
 714                         }
 715                 }
 716                 #endregion Private Methods
 717
 718                 #region subclass
 719                 public class ToolBarButtonCollection : IList, ICollection, IEnumerable
 720                 {
 721                         #region instance variables
 722                         private ArrayList list;
 723                         private ToolBar owner;
 724                         #endregion
 725
 726                         #region constructors
 727                         public ToolBarButtonCollection (ToolBar owner)
 728                         {
 729                                 this.owner = owner;
 730                                 list = new ArrayList ();
 731                         }
 732                         #endregion
 733
 734                         #region properties
 735                         [Browsable (false)]
 736                         public int Count {
 737                                 get { return list.Count; }
 738                         }
 739
 740                         public bool IsReadOnly {
 741                                 get { return list.IsReadOnly; }
 742                         }
 743
 744                         public virtual ToolBarButton this [int index] {
 745                                 get { return (ToolBarButton) list [index]; }
 746                                 set {
 747                                         value.SetParent (owner);
 748                                         list [index] = value;
 749                                         owner.Redraw (true);
 750                                 }
 751                         }
 752
 753                         bool ICollection.IsSynchronized {
 754                                 get { return list.IsSynchronized; }
 755                         }
 756
 757                         object ICollection.SyncRoot {
 758                                 get { return list.SyncRoot; }
 759                         }
 760
 761                         bool IList.IsFixedSize {
 762                                 get { return list.IsFixedSize; }
 763                         }
 764
 765                         object IList.this [int index] {
 766                                 get { return this [index]; }
 767                                 set {
 768                                         if (! (value is ToolBarButton))
 769                                                 throw new ArgumentException("Not of type ToolBarButton", "value");
 770                                         this [index] = (ToolBarButton) value;
 771                                 }
 772                         }
 773                         #endregion
 774
 775                         #region methods
 776                         public int Add (string text)
 777                         {
 778                                 ToolBarButton button = new ToolBarButton (text);
 779                                 return this.Add (button);
 780                         }
 781
 782                         public int Add (ToolBarButton button)
 783                         {
 784                                 int result;
 785                                 button.SetParent (owner);
 786                                 result = list.Add (button);
 787                                 owner.Redraw (true);
 788                                 return result;
 789                         }
 790
 791                         public void AddRange (ToolBarButton [] buttons)
 792                         {
 793                                 foreach (ToolBarButton button in buttons)
 794                                         Add (button);
 795                         }
 796
 797                         public void Clear ()
 798                         {
 799                                 list.Clear ();
 800                                 owner.Redraw (false);
 801                         }
 802
 803                         public bool Contains (ToolBarButton button)
 804                         {
 805                                 return list.Contains (button);
 806                         }
 807
 808                         public IEnumerator GetEnumerator ()
 809                         {
 810                                 return list.GetEnumerator ();
 811                         }
 812
 813                         void ICollection.CopyTo (Array dest, int index)
 814                         {
 815                                 list.CopyTo (dest, index);
 816                         }
 817
 818                         int IList.Add (object button)
 819                         {
 820                                 if (! (button is ToolBarButton)) {
 821                                         throw new ArgumentException("Not of type ToolBarButton", "button");
 822                                 }
 823
 824                                 return this.Add ((ToolBarButton) button);
 825                         }
 826
 827                         bool IList.Contains (object button)
 828                         {
 829                                 if (! (button is ToolBarButton)) {
 830                                         throw new ArgumentException("Not of type ToolBarButton", "button");
 831                                 }
 832
 833                                 return this.Contains ((ToolBarButton) button);
 834                         }
 835
 836                         int IList.IndexOf (object button)
 837                         {
 838                                 if (! (button is ToolBarButton)) {
 839                                         throw new ArgumentException("Not of type ToolBarButton", "button");
 840                                 }
 841
 842                                 return this.IndexOf ((ToolBarButton) button);
 843                         }
 844
 845                         void IList.Insert (int index, object button)
 846                         {
 847                                 if (! (button is ToolBarButton)) {
 848                                         throw new ArgumentException("Not of type ToolBarButton", "button");
 849                                 }
 850
 851                                 this.Insert (index, (ToolBarButton) button);
 852                         }
 853
 854                         void IList.Remove (object button)
 855                         {
 856                                 if (! (button is ToolBarButton)) {
 857                                         throw new ArgumentException("Not of type ToolBarButton", "button");
 858                                 }
 859
 860                                 this.Remove ((ToolBarButton) button);
 861                         }
 862
 863                         public int IndexOf (ToolBarButton button)
 864                         {
 865                                 return list.IndexOf (button);
 866                         }
 867
 868                         public void Insert (int index, ToolBarButton button)
 869                         {
 870                                 list.Insert (index, button);
 871                                 owner.Redraw (true);
 872                         }
 873
 874                         public void Remove (ToolBarButton button)
 875                         {
 876                                 list.Remove (button);
 877                                 owner.Redraw (true);
 878                         }
 879
 880                         public void RemoveAt (int index)
 881                         {
 882                                 list.RemoveAt (index);
 883                                 owner.Redraw (true);
 884                         }
 885                         #endregion methods
 886                 }
 887                 #endregion subclass
 888         }
 889 }