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

   1 //
   2 // ToolStrip.cs
   3 //
   4 // Permission is hereby granted, free of charge, to any person obtaining
   5 // a copy of this software and associated documentation files (the
   6 // "Software"), to deal in the Software without restriction, including
   7 // without limitation the rights to use, copy, modify, merge, publish,
   8 // distribute, sublicense, and/or sell copies of the Software, and to
   9 // permit persons to whom the Software is furnished to do so, subject to
  10 // the following conditions:
  11 //
  12 // The above copyright notice and this permission notice shall be
  13 // included in all copies or substantial portions of the Software.
  14 //
  15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  19 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  20 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  21 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  22 //
  23 // Copyright (c) 2006 Jonathan Pobst
  24 //
  25 // Authors:
  26 //      Jonathan Pobst (monkey@jpobst.com)
  27 //
  28
  29 #if NET_2_0
  30 using System;
  31 using System.Runtime.InteropServices;
  32 using System.ComponentModel;
  33 using System.Drawing;
  34 using System.Windows.Forms.Layout;
  35 using System.Collections.Generic;
  36 using System.ComponentModel.Design.Serialization;
  37
  38 namespace System.Windows.Forms
  39 {
  40         [ComVisible (true)]
  41         [ClassInterface (ClassInterfaceType.AutoDispatch)]
  42         [DefaultEvent ("ItemClicked")]
  43         [DefaultProperty ("Items")]
  44         [Designer ("System.Windows.Forms.Design.ToolStripDesigner, " + Consts.AssemblySystem_Design, "System.ComponentModel.Design.IDesigner")]
  45         [DesignerSerializer ("System.Windows.Forms.Design.ToolStripCodeDomSerializer, " + Consts.AssemblySystem_Design, "System.ComponentModel.Design.Serialization.CodeDomSerializer, " + Consts.AssemblySystem_Design)]
  46         public class ToolStrip : ScrollableControl, IComponent, IDisposable, IToolStripData
  47         {
  48                 #region Private Variables
  49                 private bool allow_item_reorder;
  50                 private bool allow_merge;
  51                 private Color back_color;
  52                 private bool can_overflow;
  53                 private ToolStrip currently_merged_with;
  54                 private ToolStripDropDownDirection default_drop_down_direction;
  55                 internal ToolStripItemCollection displayed_items;
  56                 private Color fore_color;
  57                 private Padding grip_margin;
  58                 private ToolStripGripStyle grip_style;
  59                 private List<ToolStripItem> hidden_merged_items;
  60                 private ImageList image_list;
  61                 private Size image_scaling_size;
  62                 private bool is_currently_merged;
  63                 private ToolStripItemCollection items;
  64                 private bool keyboard_active;
  65                 private LayoutEngine layout_engine;
  66                 private LayoutSettings layout_settings;
  67                 private ToolStripLayoutStyle layout_style;
  68                 private Orientation orientation;
  69                 private ToolStripOverflowButton overflow_button;
  70                 private List<ToolStripItem> pre_merge_items;
  71                 private ToolStripRenderer renderer;
  72                 private ToolStripRenderMode render_mode;
  73                 private ToolStripTextDirection text_direction;
  74                 private Timer tooltip_timer;
  75                 private ToolTip tooltip_window;
  76                 private bool show_item_tool_tips;
  77                 private bool stretch;
  78
  79                 private ToolStripItem mouse_currently_over;
  80                 internal bool menu_selected;
  81                 private ToolStripItem tooltip_currently_showing;
  82                 #endregion
  83
  84                 #region Public Constructors
  85                 public ToolStrip () : this (null)
  86                 {
  87                 }
  88
  89                 public ToolStrip (params ToolStripItem[] items) : base ()
  90                 {
  91                         SetStyle (ControlStyles.AllPaintingInWmPaint, true);
  92                         SetStyle (ControlStyles.OptimizedDoubleBuffer, true);
  93                         SetStyle (ControlStyles.Selectable, false);
  94                         SetStyle (ControlStyles.SupportsTransparentBackColor, true);
  95
  96                         this.SuspendLayout ();
  97
  98                         this.items = new ToolStripItemCollection (this, items, true);
  99                         this.allow_merge = true;
 100                         base.AutoSize = true;
 101                         this.SetAutoSizeMode (AutoSizeMode.GrowAndShrink);
 102                         this.back_color = Control.DefaultBackColor;
 103                         this.can_overflow = true;
 104                         base.CausesValidation = false;
 105                         this.default_drop_down_direction = ToolStripDropDownDirection.BelowRight;
 106                         this.displayed_items = new ToolStripItemCollection (this, null, true);
 107                         this.Dock = this.DefaultDock;
 108                         base.Font = new Font ("Tahoma", 8.25f);
 109                         this.fore_color = Control.DefaultForeColor;
 110                         this.grip_margin = this.DefaultGripMargin;
 111                         this.grip_style = ToolStripGripStyle.Visible;
 112                         this.image_scaling_size = new Size (16, 16);
 113                         this.layout_style = ToolStripLayoutStyle.HorizontalStackWithOverflow;
 114                         this.orientation = Orientation.Horizontal;
 115                         if (!(this is ToolStripDropDown))
 116                                 this.overflow_button = new ToolStripOverflowButton (this);
 117                         this.renderer = null;
 118                         this.render_mode = ToolStripRenderMode.ManagerRenderMode;
 119                         this.show_item_tool_tips = this.DefaultShowItemToolTips;
 120                         base.TabStop = false;
 121                         this.text_direction = ToolStripTextDirection.Horizontal;
 122                         this.ResumeLayout ();
 123
 124                         // Register with the ToolStripManager
 125                         ToolStripManager.AddToolStrip (this);
 126                 }
 127                 #endregion
 128
 129                 #region Public Properties
 130                 [MonoTODO ()]
 131                 public override bool AllowDrop {
 132                         get { return base.AllowDrop; }
 133                         set { base.AllowDrop = value; }
 134                 }
 135
 136                 [MonoTODO ()]
 137                 [DefaultValue (false)]
 138                 public bool AllowItemReorder {
 139                         get { return this.allow_item_reorder; }
 140                         set { this.allow_item_reorder = value; }
 141                 }
 142
 143                 [DefaultValue (true)]
 144                 public bool AllowMerge {
 145                         get { return this.allow_merge; }
 146                         set { this.allow_merge = value; }
 147                 }
 148
 149                 public override AnchorStyles Anchor {
 150                         get { return base.Anchor; }
 151                         set { base.Anchor = value; }
 152                 }
 153
 154                 [Browsable (false)]
 155                 [EditorBrowsable (EditorBrowsableState.Never)]
 156                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 157                 public override bool AutoScroll {
 158                         get { return base.AutoScroll; }
 159                         set { base.AutoScroll = value; }
 160                 }
 161
 162                 [Browsable (false)]
 163                 [EditorBrowsable (EditorBrowsableState.Never)]
 164                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 165                 public new Size AutoScrollMargin {
 166                         get { return base.AutoScrollMargin; }
 167                         set { base.AutoScrollMargin = value; }
 168                 }
 169
 170                 [Browsable (false)]
 171                 [EditorBrowsable (EditorBrowsableState.Never)]
 172                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 173                 public new Size AutoScrollMinSize {
 174                         get { return base.AutoScrollMinSize; }
 175                         set { base.AutoScrollMinSize = value; }
 176                 }
 177
 178                 [Browsable (false)]
 179                 [EditorBrowsable (EditorBrowsableState.Never)]
 180                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 181                 public new Point AutoScrollPosition {
 182                         get { return base.AutoScrollPosition; }
 183                         set { base.AutoScrollPosition = value; }
 184                 }
 185
 186                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Visible)]
 187                 [Browsable (true)]
 188                 [EditorBrowsable (EditorBrowsableState.Always)]
 189                 [DefaultValue (true)]
 190                 public override bool AutoSize {
 191                         get { return base.AutoSize; }
 192                         set { base.AutoSize = value; }
 193                 }
 194
 195                 new public Color BackColor {
 196                         get { return this.back_color; }
 197                         set { this.back_color = value; }
 198                 }
 199
 200                 public override BindingContext BindingContext {
 201                         get { return base.BindingContext; }
 202                         set { base.BindingContext = value; }
 203                 }
 204
 205                 [DefaultValue (true)]
 206                 public bool CanOverflow {
 207                         get { return this.can_overflow; }
 208                         set { this.can_overflow = value; }
 209                 }
 210
 211                 [Browsable (false)]
 212                 [DefaultValue (false)]
 213                 public new bool CausesValidation {
 214                         get { return base.CausesValidation; }
 215                         set { base.CausesValidation = value; }
 216                 }
 217
 218                 [EditorBrowsable (EditorBrowsableState.Never)]
 219                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 220                 public new ControlCollection Controls {
 221                         get { return base.Controls; }
 222                 }
 223
 224                 [Browsable (false)]
 225                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 226                 public override Cursor Cursor {
 227                         get { return base.Cursor; }
 228                         set { base.Cursor = value; }
 229                 }
 230
 231                 [Browsable (false)]
 232                 public virtual ToolStripDropDownDirection DefaultDropDownDirection {
 233                         get { return this.default_drop_down_direction; }
 234                         set {
 235                                 if (!Enum.IsDefined (typeof (ToolStripDropDownDirection), value))
 236                                         throw new InvalidEnumArgumentException (string.Format ("Enum argument value '{0}' is not valid for ToolStripDropDownDirection", value));
 237
 238                                 this.default_drop_down_direction = value;
 239                         }
 240                 }
 241
 242                 public override Rectangle DisplayRectangle {
 243                         get {
 244                                 if (this.orientation == Orientation.Horizontal)
 245                                         if (this.grip_style == ToolStripGripStyle.Hidden || this.layout_style == ToolStripLayoutStyle.Flow || this.layout_style == ToolStripLayoutStyle.Table)
 246                                                 return new Rectangle (this.Padding.Left, this.Padding.Top, this.Width - this.Padding.Horizontal, this.Height - this.Padding.Vertical);
 247                                         else
 248                                                 return new Rectangle (this.GripRectangle.Right + this.GripMargin.Right, this.Padding.Top, this.Width - this.Padding.Horizontal - this.GripRectangle.Right - this.GripMargin.Right, this.Height - this.Padding.Vertical);
 249                                 else
 250                                         if (this.grip_style == ToolStripGripStyle.Hidden || this.layout_style == ToolStripLayoutStyle.Flow || this.layout_style == ToolStripLayoutStyle.Table)
 251                                                 return new Rectangle (this.Padding.Left, this.Padding.Top, this.Width - this.Padding.Horizontal, this.Height - this.Padding.Vertical);
 252                                         else
 253                                                 return new Rectangle (this.Padding.Left, this.GripRectangle.Bottom + this.GripMargin.Bottom + this.Padding.Top, this.Width - this.Padding.Horizontal, this.Height - this.Padding.Vertical - this.GripRectangle.Bottom - this.GripMargin.Bottom);
 254                         }
 255                 }
 256
 257                 [DefaultValue (DockStyle.Top)]
 258                 public override DockStyle Dock {
 259                         get { return base.Dock; }
 260                         set {
 261                                 if (base.Dock != value) {
 262                                         base.Dock = value;
 263
 264                                         switch (value) {
 265                                                 case DockStyle.Top:
 266                                                 case DockStyle.Bottom:
 267                                                 case DockStyle.None:
 268                                                         this.LayoutStyle = ToolStripLayoutStyle.HorizontalStackWithOverflow;
 269                                                         break;
 270                                                 case DockStyle.Left:
 271                                                 case DockStyle.Right:
 272                                                         this.LayoutStyle = ToolStripLayoutStyle.VerticalStackWithOverflow;
 273                                                         break;
 274                                         }
 275                                 }
 276                         }
 277                 }
 278
 279                 public override Font Font {
 280                         get { return base.Font; }
 281                         set {
 282                                 if (base.Font != value) {
 283                                         base.Font = value;
 284
 285                                         foreach (ToolStripItem tsi in this.Items)
 286                                                 tsi.OnOwnerFontChanged (EventArgs.Empty);
 287                                 }
 288                          }
 289                 }
 290
 291                 [Browsable (false)]
 292                 public new Color ForeColor {
 293                         get { return this.fore_color; }
 294                         set {
 295                                 if (this.fore_color != value) {
 296                                         this.fore_color = value;
 297                                         this.OnForeColorChanged (EventArgs.Empty);
 298                                 }
 299                         }
 300                 }
 301
 302                 [Browsable (false)]
 303                 public ToolStripGripDisplayStyle GripDisplayStyle {
 304                         get { return this.orientation == Orientation.Vertical ? ToolStripGripDisplayStyle.Horizontal : ToolStripGripDisplayStyle.Vertical; }
 305                 }
 306
 307                 public Padding GripMargin {
 308                         get { return this.grip_margin; }
 309                         set {
 310                                 if (this.grip_margin != value) {
 311                                         this.grip_margin = value;
 312                                         this.PerformLayout ();
 313                                 }
 314                         }
 315                 }
 316
 317                 [Browsable (false)]
 318                 public Rectangle GripRectangle {
 319                         get {
 320                                 if (this.grip_style == ToolStripGripStyle.Hidden)
 321                                         return Rectangle.Empty;
 322
 323                                 if (this.orientation == Orientation.Horizontal)
 324                                         return new Rectangle (this.grip_margin.Left + this.Padding.Left, this.Padding.Top, 3, this.Height);
 325                                 else
 326                                         return new Rectangle (this.Padding.Left, this.grip_margin.Top + this.Padding.Top, this.Width, 3);
 327                         }
 328                 }
 329
 330                 [DefaultValue (ToolStripGripStyle.Visible)]
 331                 public ToolStripGripStyle GripStyle {
 332                         get { return this.grip_style; }
 333                         set {
 334                                 if (this.grip_style != value) {
 335                                         if (!Enum.IsDefined (typeof (ToolStripGripStyle), value))
 336                                                 throw new InvalidEnumArgumentException (string.Format ("Enum argument value '{0}' is not valid for ToolStripGripStyle", value));
 337                                         this.grip_style = value;
 338                                         this.PerformLayout (this, "GripStyle");
 339                                 }
 340                         }
 341                 }
 342
 343                 [Browsable (false)]
 344                 [EditorBrowsable (EditorBrowsableState.Never)]
 345                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 346                 public new bool HasChildren {
 347                         get { return base.HasChildren; }
 348                 }
 349
 350                 [Browsable (false)]
 351                 [EditorBrowsable (EditorBrowsableState.Never)]
 352                 public new HScrollProperties HorizontalScroll {
 353                         get { return base.HorizontalScroll; }
 354                 }
 355
 356                 [Browsable (false)]
 357                 [DefaultValue (null)]
 358                 public ImageList ImageList {
 359                         get { return this.image_list; }
 360                         set { this.image_list = value; }
 361                 }
 362
 363                 [DefaultValue ("{Width=16, Height=16}")]
 364                 public Size ImageScalingSize {
 365                         get { return this.image_scaling_size; }
 366                         set { this.image_scaling_size = value; }
 367                 }
 368
 369                 [MonoTODO ("Always returns false, dragging not implemented yet.")]
 370                 [Browsable (false)]
 371                 [EditorBrowsable (EditorBrowsableState.Advanced)]
 372                 public bool IsCurrentlyDragging {
 373                         get { return false; }
 374                 }
 375
 376                 [Browsable (false)]
 377                 public bool IsDropDown {
 378                         get {
 379                                 if (this is ToolStripDropDown)
 380                                         return true;
 381
 382                                 return false;
 383                         }
 384                 }
 385
 386                 [MergableProperty (false)]
 387                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 388                 public virtual ToolStripItemCollection Items {
 389                         get { return this.items; }
 390                 }
 391
 392                 public override LayoutEngine LayoutEngine {
 393                         get {
 394                                  if (layout_engine == null)
 395                                         this.layout_engine = new ToolStripSplitStackLayout ();
 396
 397                                  return this.layout_engine;
 398                         }
 399                 }
 400
 401                 [Browsable (false)]
 402                 [DefaultValue (null)]
 403                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 404                 public LayoutSettings LayoutSettings {
 405                         get { return this.layout_settings; }
 406                         set {
 407                                 if (this.layout_settings != value) {
 408                                         this.layout_settings = value;
 409                                         PerformLayout (this, "LayoutSettings");
 410                                 }
 411                         }
 412                 }
 413
 414                 [AmbientValue (ToolStripLayoutStyle.StackWithOverflow)]
 415                 public ToolStripLayoutStyle LayoutStyle {
 416                         get { return layout_style; }
 417                         set {
 418                                 if (this.layout_style != value) {
 419                                         if (!Enum.IsDefined (typeof (ToolStripLayoutStyle), value))
 420                                                 throw new InvalidEnumArgumentException (string.Format ("Enum argument value '{0}' is not valid for ToolStripLayoutStyle", value));
 421
 422                                         this.layout_style = value;
 423
 424                                         if (this.layout_style == ToolStripLayoutStyle.Flow)
 425                                                 this.layout_engine = new FlowLayout ();
 426                                         else
 427                                                 this.layout_engine = new ToolStripSplitStackLayout ();
 428
 429                                         if (this.layout_style == ToolStripLayoutStyle.StackWithOverflow) {
 430                                                 if (this.Dock == DockStyle.Left || this.Dock == DockStyle.Right)
 431                                                         this.layout_style = ToolStripLayoutStyle.VerticalStackWithOverflow;
 432                                                 else
 433                                                         this.layout_style = ToolStripLayoutStyle.HorizontalStackWithOverflow;
 434                                         }
 435
 436                                         if (this.layout_style == ToolStripLayoutStyle.HorizontalStackWithOverflow)
 437                                                 this.orientation = Orientation.Horizontal;
 438                                         else if (this.layout_style == ToolStripLayoutStyle.VerticalStackWithOverflow)
 439                                                 this.orientation = Orientation.Vertical;
 440
 441                                         this.layout_settings = this.CreateLayoutSettings (value);
 442
 443                                         this.PerformLayout (this, "LayoutStyle");
 444                                         this.OnLayoutStyleChanged (EventArgs.Empty);
 445                                 }
 446                         }
 447                 }
 448
 449                 [Browsable (false)]
 450                 public Orientation Orientation {
 451                         get { return this.orientation; }
 452                 }
 453
 454                 [Browsable (false)]
 455                 [EditorBrowsable (EditorBrowsableState.Advanced)]
 456                 public ToolStripOverflowButton OverflowButton {
 457                         get { return this.overflow_button; }
 458                 }
 459
 460                 [Browsable (false)]
 461                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 462                 public ToolStripRenderer Renderer {
 463                         get {
 464                                 if (this.render_mode == ToolStripRenderMode.ManagerRenderMode)
 465                                         return ToolStripManager.Renderer;
 466
 467                                 return this.renderer;
 468                         }
 469                         set {
 470                                 if (this.renderer != value) {
 471                                         this.renderer = value;
 472                                         this.render_mode = ToolStripRenderMode.Custom;
 473                                         this.PerformLayout (this, "Renderer");
 474                                         this.OnRendererChanged (EventArgs.Empty);
 475                                 }
 476                         }
 477                 }
 478
 479                 public ToolStripRenderMode RenderMode {
 480                         get { return this.render_mode; }
 481                         set {
 482                                 if (!Enum.IsDefined (typeof (ToolStripRenderMode), value))
 483                                         throw new InvalidEnumArgumentException (string.Format ("Enum argument value '{0}' is not valid for ToolStripRenderMode", value));
 484
 485                                 if (value == ToolStripRenderMode.Custom && this.renderer == null)
 486                                         throw new NotSupportedException ("Must set Renderer property before setting RenderMode to Custom");
 487                                 else if (value == ToolStripRenderMode.Professional)
 488                                         this.Renderer = new ToolStripProfessionalRenderer ();
 489                                 else if (value == ToolStripRenderMode.System)
 490                                         this.Renderer = new ToolStripSystemRenderer ();
 491
 492                                 this.render_mode = value;
 493                         }
 494                 }
 495
 496                 [DefaultValue (true)]
 497                 public bool ShowItemToolTips {
 498                         get { return this.show_item_tool_tips; }
 499                         set { this.show_item_tool_tips = value; }
 500                 }
 501
 502                 [DefaultValue (false)]
 503                 public bool Stretch {
 504                         get { return this.stretch; }
 505                         set { this.stretch = value; }
 506                 }
 507
 508                 [DefaultValue (false)]
 509                 [DispId(-516)]
 510                 public new bool TabStop {
 511                         get { return base.TabStop; }
 512                         set {
 513                                 base.TabStop = value;
 514                                 SetStyle (ControlStyles.Selectable, value);
 515                         }
 516                 }
 517
 518                 [DefaultValue (ToolStripTextDirection.Horizontal)]
 519                 public virtual ToolStripTextDirection TextDirection {
 520                         get { return this.text_direction; }
 521                         set {
 522                                 if (!Enum.IsDefined (typeof (ToolStripTextDirection), value))
 523                                         throw new InvalidEnumArgumentException (string.Format ("Enum argument value '{0}' is not valid for ToolStripTextDirection", value));
 524
 525                                 if (this.text_direction != value) {
 526                                         this.text_direction = value;
 527
 528                                         this.PerformLayout (this, "TextDirection");
 529
 530                                         this.Invalidate ();
 531                                 }
 532                         }
 533                 }
 534
 535                 [Browsable (false)]
 536                 [EditorBrowsable (EditorBrowsableState.Never)]
 537                 public new VScrollProperties VerticalScroll {
 538                         get { return base.VerticalScroll; }
 539                 }
 540                 #endregion
 541
 542                 #region Protected Properties
 543                 protected virtual DockStyle DefaultDock { get { return DockStyle.Top; } }
 544                 protected virtual Padding DefaultGripMargin { get { return new Padding (2); } }
 545                 protected override Padding DefaultMargin { get { return Padding.Empty; } }
 546                 protected override Padding DefaultPadding { get { return new Padding (0, 0, 1, 0); } }
 547                 protected virtual bool DefaultShowItemToolTips { get { return true; } }
 548                 protected override Size DefaultSize { get { return new Size (100, 25); } }
 549                 protected internal virtual ToolStripItemCollection DisplayedItems { get { return this.displayed_items; } }
 550                 protected internal virtual Size MaxItemSize {
 551                         get { return new Size (Width - (GripStyle == ToolStripGripStyle.Hidden ? 1 : 8), Height); }
 552                 }
 553                 #endregion
 554
 555                 #region Public Methods
 556                 [EditorBrowsable (EditorBrowsableState.Never)]
 557                 public new Control GetChildAtPoint (Point point)
 558                 {
 559                         return base.GetChildAtPoint (point);
 560                 }
 561
 562                 [EditorBrowsable (EditorBrowsableState.Never)]
 563                 public new Control GetChildAtPoint (Point pt, GetChildAtPointSkip skipValue)
 564                 {
 565                         return base.GetChildAtPoint (pt, skipValue);
 566                 }
 567
 568                 public ToolStripItem GetItemAt (Point point)
 569                 {
 570                         foreach (ToolStripItem tsi in this.displayed_items)
 571                                 if (tsi.Visible && tsi.Bounds.Contains (point))
 572                                         return tsi;
 573
 574                         return null;
 575                 }
 576
 577                 public ToolStripItem GetItemAt (int x, int y)
 578                 {
 579                         return GetItemAt (new Point (x, y));
 580                 }
 581
 582                 public virtual ToolStripItem GetNextItem (ToolStripItem start, ArrowDirection direction)
 583                 {
 584                         if (!Enum.IsDefined (typeof (ArrowDirection), direction))
 585                                 throw new InvalidEnumArgumentException (string.Format ("Enum argument value '{0}' is not valid for ArrowDirection", direction));
 586
 587                         ToolStripItem current_best = null;
 588                         int current_best_point;
 589
 590                         switch (direction) {
 591                                 case ArrowDirection.Right:
 592                                         current_best_point = int.MaxValue;
 593
 594                                         if (start != null)
 595                                                 foreach (ToolStripItem loop_tsi in this.DisplayedItems)
 596                                                         if (loop_tsi.Left >= start.Right && loop_tsi.Left < current_best_point && loop_tsi.Visible && loop_tsi.CanSelect) {
 597                                                                 current_best = loop_tsi;
 598                                                                 current_best_point = loop_tsi.Left;
 599                                                         }
 600
 601                                         if (current_best == null)
 602                                                 foreach (ToolStripItem loop_tsi in this.DisplayedItems)
 603                                                         if (loop_tsi.Left < current_best_point && loop_tsi.Visible && loop_tsi.CanSelect) {
 604                                                                 current_best = loop_tsi;
 605                                                                 current_best_point = loop_tsi.Left;
 606                                                         }
 607
 608                                         break;
 609                                 case ArrowDirection.Up:
 610                                         current_best_point = int.MinValue;
 611
 612                                         if (start != null)
 613                                                 foreach (ToolStripItem loop_tsi in this.DisplayedItems)
 614                                                         if (loop_tsi.Bottom <= start.Top && loop_tsi.Top > current_best_point && loop_tsi.Visible && loop_tsi.CanSelect) {
 615                                                                 current_best = loop_tsi;
 616                                                                 current_best_point = loop_tsi.Top;
 617                                                         }
 618
 619                                         if (current_best == null)
 620                                                 foreach (ToolStripItem loop_tsi in this.DisplayedItems)
 621                                                         if (loop_tsi.Top > current_best_point && loop_tsi.Visible && loop_tsi.CanSelect) {
 622                                                                 current_best = loop_tsi;
 623                                                                 current_best_point = loop_tsi.Top;
 624                                                         }
 625
 626                                         break;
 627                                 case ArrowDirection.Left:
 628                                         current_best_point = int.MinValue;
 629
 630                                         if (start != null)
 631                                                 foreach (ToolStripItem loop_tsi in this.DisplayedItems)
 632                                                         if (loop_tsi.Right <= start.Left && loop_tsi.Left > current_best_point && loop_tsi.Visible && loop_tsi.CanSelect) {
 633                                                                 current_best = loop_tsi;
 634                                                                 current_best_point = loop_tsi.Left;
 635                                                         }
 636
 637                                         if (current_best == null)
 638                                                 foreach (ToolStripItem loop_tsi in this.DisplayedItems)
 639                                                         if (loop_tsi.Left > current_best_point && loop_tsi.Visible && loop_tsi.CanSelect) {
 640                                                                 current_best = loop_tsi;
 641                                                                 current_best_point = loop_tsi.Left;
 642                                                         }
 643
 644                                         break;
 645                                 case ArrowDirection.Down:
 646                                         current_best_point = int.MaxValue;
 647
 648                                         if (start != null)
 649                                                 foreach (ToolStripItem loop_tsi in this.DisplayedItems)
 650                                                         if (loop_tsi.Top >= start.Bottom && loop_tsi.Bottom < current_best_point && loop_tsi.Visible && loop_tsi.CanSelect) {
 651                                                                 current_best = loop_tsi;
 652                                                                 current_best_point = loop_tsi.Top;
 653                                                         }
 654
 655                                         if (current_best == null)
 656                                                 foreach (ToolStripItem loop_tsi in this.DisplayedItems)
 657                                                         if (loop_tsi.Top < current_best_point && loop_tsi.Visible && loop_tsi.CanSelect) {
 658                                                                 current_best = loop_tsi;
 659                                                                 current_best_point = loop_tsi.Top;
 660                                                         }
 661
 662                                         break;
 663                         }
 664
 665                         return current_best;
 666                 }
 667
 668                 [EditorBrowsable (EditorBrowsableState.Never)]
 669                 public void ResetMinimumSize ()
 670                 {
 671                         this.MinimumSize = new Size (-1, -1);
 672                 }
 673
 674                 [EditorBrowsable (EditorBrowsableState.Never)]
 675                 public new void SetAutoScrollMargin (int x, int y)
 676                 {
 677                         base.SetAutoScrollMargin (x, y);
 678                 }
 679
 680                 public override string ToString ()
 681                 {
 682                         return String.Format ("{0}, Name: {1}, Items: {2}", base.ToString(), this.Name, this.items.Count.ToString ());
 683                 }
 684                 #endregion
 685
 686                 #region Protected Methods
 687                 protected override AccessibleObject CreateAccessibilityInstance ()
 688                 {
 689                         return new ToolStripAccessibleObject (this);
 690                 }
 691
 692                 protected override ControlCollection CreateControlsInstance ()
 693                 {
 694                         return base.CreateControlsInstance ();
 695                 }
 696
 697                 protected internal virtual ToolStripItem CreateDefaultItem (string text, Image image, EventHandler onClick)
 698                 {
 699                         if (text == "-")
 700                                 return new ToolStripSeparator ();
 701
 702                         if (this is ToolStripDropDown)
 703                                 return new ToolStripMenuItem (text, image, onClick);
 704
 705                         return new ToolStripButton (text, image, onClick);
 706                 }
 707
 708                 protected virtual LayoutSettings CreateLayoutSettings (ToolStripLayoutStyle layoutStyle)
 709                 {
 710                         switch (layoutStyle) {
 711                                 case ToolStripLayoutStyle.Flow:
 712                                         return new FlowLayoutSettings (this);
 713                                 case ToolStripLayoutStyle.Table:
 714                                         //return new TableLayoutSettings ();
 715                                 case ToolStripLayoutStyle.StackWithOverflow:
 716                                 case ToolStripLayoutStyle.HorizontalStackWithOverflow:
 717                                 case ToolStripLayoutStyle.VerticalStackWithOverflow:
 718                                 default:
 719                                         return null;
 720                         }
 721                 }
 722
 723                 protected override void Dispose (bool disposing)
 724                 {
 725                         if (!IsDisposed) {
 726                                 // ToolStripItem.Dispose modifes the collection,
 727                                 // so we iterate it in reverse order
 728                                 for (int i = Items.Count - 1; i >= 0; i--)
 729                                         Items [i].Dispose ();
 730
 731                                 if (this.overflow_button != null && this.overflow_button.drop_down != null)
 732                                         this.overflow_button.drop_down.Dispose ();
 733
 734                                 ToolStripManager.RemoveToolStrip (this);
 735                                 base.Dispose (disposing);
 736                         }
 737                 }
 738
 739                 [MonoTODO ("Not called")]
 740                 protected virtual void OnBeginDrag (EventArgs e)
 741                 {
 742                         EventHandler eh = (EventHandler)(Events[BeginDragEvent]);
 743                         if (eh != null)
 744                                 eh (this, e);
 745                 }
 746
 747                 protected override void OnDockChanged (EventArgs e)
 748                 {
 749                         base.OnDockChanged (e);
 750                 }
 751
 752                 [MonoTODO ("Not called")]
 753                 protected virtual void OnEndDrag (EventArgs e)
 754                 {
 755                         EventHandler eh = (EventHandler)(Events[EndDragEvent]);
 756                         if (eh != null)
 757                                 eh (this, e);
 758                 }
 759
 760                 protected override bool IsInputChar (char charCode)
 761                 {
 762                         return base.IsInputChar (charCode);
 763                 }
 764
 765                 protected override bool IsInputKey (Keys keyData)
 766                 {
 767                         return base.IsInputKey (keyData);
 768                 }
 769
 770                 protected override void OnEnabledChanged (EventArgs e)
 771                 {
 772                         base.OnEnabledChanged (e);
 773
 774                         foreach (ToolStripItem tsi in this.Items)
 775                                 tsi.OnParentEnabledChanged (EventArgs.Empty);
 776                 }
 777
 778                 protected override void OnFontChanged (EventArgs e)
 779                 {
 780                         base.OnFontChanged (e);
 781                 }
 782
 783                 protected override void OnHandleCreated (EventArgs e)
 784                 {
 785                         base.OnHandleCreated (e);
 786                 }
 787
 788                 protected override void OnHandleDestroyed (EventArgs e)
 789                 {
 790                         base.OnHandleDestroyed (e);
 791                 }
 792
 793                 protected override void OnInvalidated (InvalidateEventArgs e)
 794                 {
 795                         base.OnInvalidated (e);
 796                 }
 797
 798                 protected internal virtual void OnItemAdded (ToolStripItemEventArgs e)
 799                 {
 800                         if (e.Item.InternalVisible)
 801                                 e.Item.Available = true;
 802
 803                         e.Item.SetPlacement (ToolStripItemPlacement.Main);
 804
 805                         if (this.Created)
 806                                 this.PerformLayout ();
 807
 808                         ToolStripItemEventHandler eh = (ToolStripItemEventHandler)(Events [ItemAddedEvent]);
 809                         if (eh != null)
 810                                 eh (this, e);
 811                 }
 812
 813                 protected virtual void OnItemClicked (ToolStripItemClickedEventArgs e)
 814                 {
 815                         if (this.KeyboardActive)
 816                                 ToolStripManager.SetActiveToolStrip (null, false);
 817
 818                         ToolStripItemClickedEventHandler eh = (ToolStripItemClickedEventHandler)(Events [ItemClickedEvent]);
 819                         if (eh != null)
 820                                 eh (this, e);
 821                 }
 822
 823                 protected internal virtual void OnItemRemoved (ToolStripItemEventArgs e)
 824                 {
 825                         ToolStripItemEventHandler eh = (ToolStripItemEventHandler)(Events [ItemRemovedEvent]);
 826                         if (eh != null)
 827                                 eh (this, e);
 828                 }
 829
 830                 protected override void OnLayout (LayoutEventArgs e)
 831                 {
 832                         base.OnLayout (e);
 833
 834                         this.SetDisplayedItems ();
 835                         this.OnLayoutCompleted (EventArgs.Empty);
 836                         this.Invalidate ();
 837                 }
 838
 839                 protected virtual void OnLayoutCompleted (EventArgs e)
 840                 {
 841                         EventHandler eh = (EventHandler)(Events [LayoutCompletedEvent]);
 842                         if (eh != null)
 843                                 eh (this, e);
 844                 }
 845
 846                 protected virtual void OnLayoutStyleChanged (EventArgs e)
 847                 {
 848                         EventHandler eh = (EventHandler)(Events[LayoutStyleChangedEvent]);
 849                         if (eh != null)
 850                                 eh (this, e);
 851                 }
 852
 853                 protected override void OnLeave (EventArgs e)
 854                 {
 855                         base.OnLeave (e);
 856                 }
 857
 858                 protected override void OnLostFocus (EventArgs e)
 859                 {
 860                         base.OnLostFocus (e);
 861                 }
 862
 863                 protected override void OnMouseCaptureChanged (EventArgs e)
 864                 {
 865                         base.OnMouseCaptureChanged (e);
 866                 }
 867
 868                 protected override void OnMouseDown (MouseEventArgs mea)
 869                 {
 870                         if (mouse_currently_over != null)
 871                         {
 872                                 ToolStripItem focused = GetCurrentlyFocusedItem ();
 873
 874                                 if (focused != null && focused != mouse_currently_over)
 875                                         this.FocusInternal (true);
 876
 877                                 if (this is MenuStrip && !menu_selected) {
 878                                         (this as MenuStrip).FireMenuActivate ();
 879                                         menu_selected = true;
 880                                 }
 881
 882                                 mouse_currently_over.FireEvent (mea, ToolStripItemEventType.MouseDown);
 883
 884                                 if (this is MenuStrip && mouse_currently_over is ToolStripMenuItem && !(mouse_currently_over as ToolStripMenuItem).HasDropDownItems)
 885                                         return;
 886                         } else {
 887                                 this.HideMenus (true, ToolStripDropDownCloseReason.AppClicked);
 888                         }
 889
 890                         if (this is MenuStrip)
 891                                 this.Capture = false;
 892
 893                         base.OnMouseDown (mea);
 894                 }
 895
 896                 protected override void OnMouseLeave (EventArgs e)
 897                 {
 898                         if (mouse_currently_over != null) {
 899                                 MouseLeftItem (mouse_currently_over);
 900                                 mouse_currently_over.FireEvent (e, ToolStripItemEventType.MouseLeave);
 901                                 mouse_currently_over = null;
 902                         }
 903
 904                         base.OnMouseLeave (e);
 905                 }
 906
 907                 protected override void OnMouseMove (MouseEventArgs mea)
 908                 {
 909                         ToolStripItem tsi;
 910                         // Find the item we are now
 911                         if (this.overflow_button != null && this.overflow_button.Visible && this.overflow_button.Bounds.Contains (mea.Location))
 912                                 tsi = this.overflow_button;
 913                         else
 914                                 tsi = this.GetItemAt (mea.X, mea.Y);
 915
 916                         if (tsi != null) {
 917                                 // If we were already hovering on this item, just send a mouse move
 918                                 if (tsi == mouse_currently_over)
 919                                         tsi.FireEvent (mea, ToolStripItemEventType.MouseMove);
 920                                 else {
 921                                         // If we were over a different item, fire a mouse leave on it
 922                                         if (mouse_currently_over != null) {
 923                                                 MouseLeftItem (tsi);
 924                                                 mouse_currently_over.FireEvent (mea, ToolStripItemEventType.MouseLeave);
 925                                         }
 926
 927                                         // Set the new item we are currently over
 928                                         mouse_currently_over = tsi;
 929
 930                                         // Fire mouse enter and mouse move
 931                                         tsi.FireEvent (mea, ToolStripItemEventType.MouseEnter);
 932                                         MouseEnteredItem (tsi);
 933                                         tsi.FireEvent (mea, ToolStripItemEventType.MouseMove);
 934
 935                                         // If we're over something with a drop down, show it
 936                                         if (menu_selected && mouse_currently_over.Enabled && mouse_currently_over is ToolStripDropDownItem && (mouse_currently_over as ToolStripDropDownItem).HasDropDownItems)
 937                                                 (mouse_currently_over as ToolStripDropDownItem).ShowDropDown ();
 938                                 }
 939                         } else {
 940                                 // We're not over anything now, just fire the mouse leave on what we used to be over
 941                                 if (mouse_currently_over != null) {
 942                                         MouseLeftItem (tsi);
 943                                         mouse_currently_over.FireEvent (mea, ToolStripItemEventType.MouseLeave);
 944                                         mouse_currently_over = null;
 945                                 }
 946                         }
 947
 948                         base.OnMouseMove (mea);
 949                 }
 950
 951                 protected override void OnMouseUp (MouseEventArgs mea)
 952                 {
 953                         // If we're currently over an item (set in MouseMove)
 954                         if (mouse_currently_over != null && !(mouse_currently_over is ToolStripControlHost) && mouse_currently_over.Enabled) {
 955                                 // Fire our ItemClicked event
 956                                 OnItemClicked (new ToolStripItemClickedEventArgs (mouse_currently_over));
 957
 958                                 // Fire the item's MouseUp event
 959                                 if (mouse_currently_over != null)
 960                                         mouse_currently_over.FireEvent (mea, ToolStripItemEventType.MouseUp);
 961
 962                                 // The event handler may have blocked until the mouse moved off of the ToolStripItem
 963                                 if (mouse_currently_over == null)
 964                                         return;
 965                         }
 966
 967                         base.OnMouseUp (mea);
 968                 }
 969
 970                 protected override void OnPaint (PaintEventArgs e)
 971                 {
 972                         base.OnPaint (e);
 973
 974                         // Draw the grip
 975                         this.OnPaintGrip (e);
 976
 977                         // Make each item draw itself
 978                         for (int i = 0; i < displayed_items.Count; i++) {
 979                                 ToolStripItem tsi = displayed_items[i];
 980
 981                                 if (tsi.Visible) {
 982                                         e.Graphics.TranslateTransform (tsi.Bounds.Left, tsi.Bounds.Top);
 983                                         tsi.FireEvent (e, ToolStripItemEventType.Paint);
 984                                         e.Graphics.ResetTransform ();
 985                                 }
 986                         }
 987
 988                         // Paint the Overflow button if it's visible
 989                         if (this.overflow_button != null && this.overflow_button.Visible) {
 990                                 e.Graphics.TranslateTransform (this.overflow_button.Bounds.Left, this.overflow_button.Bounds.Top);
 991                                 this.overflow_button.FireEvent (e, ToolStripItemEventType.Paint);
 992                                 e.Graphics.ResetTransform ();
 993                         }
 994
 995                         Rectangle affected_bounds = new Rectangle (Point.Empty, this.Size);
 996
 997                         ToolStripRenderEventArgs pevent = new ToolStripRenderEventArgs (e.Graphics, this, affected_bounds, Color.Empty);
 998                         pevent.InternalConnectedArea = CalculateConnectedArea ();
 999
1000                         this.Renderer.DrawToolStripBorder (pevent);
1001                 }
1002
1003                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1004                 protected override void OnPaintBackground (PaintEventArgs e)
1005                 {
1006                         base.OnPaintBackground (e);
1007
1008                         Rectangle affected_bounds = new Rectangle (Point.Empty, this.Size);
1009                         ToolStripRenderEventArgs tsrea = new ToolStripRenderEventArgs (e.Graphics, this, affected_bounds, SystemColors.Control);
1010
1011                         this.Renderer.DrawToolStripBackground (tsrea);
1012                 }
1013
1014                 protected internal virtual void OnPaintGrip (PaintEventArgs e)
1015                 {
1016                         // Never draw a grip with these two layouts
1017                         if (this.layout_style == ToolStripLayoutStyle.Flow || this.layout_style == ToolStripLayoutStyle.Table)
1018                                 return;
1019
1020                         PaintEventHandler eh = (PaintEventHandler)(Events [PaintGripEvent]);
1021                         if (eh != null)
1022                                 eh (this, e);
1023
1024                         if (!(this is MenuStrip)) {
1025                                 if (this.orientation == Orientation.Horizontal)
1026                                         e.Graphics.TranslateTransform (2, 0);
1027                                 else
1028                                         e.Graphics.TranslateTransform (0, 2);
1029                         }
1030
1031                         this.Renderer.DrawGrip (new ToolStripGripRenderEventArgs (e.Graphics, this, this.GripRectangle, this.GripDisplayStyle, this.grip_style));
1032                         e.Graphics.ResetTransform ();
1033                 }
1034
1035                 protected virtual void OnRendererChanged (EventArgs e)
1036                 {
1037                         EventHandler eh = (EventHandler)(Events [RendererChangedEvent]);
1038                         if (eh != null)
1039                                 eh (this, e);
1040                 }
1041
1042                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1043                 protected override void OnRightToLeftChanged (EventArgs e)
1044                 {
1045                         base.OnRightToLeftChanged (e);
1046
1047                         foreach (ToolStripItem tsi in this.Items)
1048                                 tsi.OnParentRightToLeftChanged (e);
1049                 }
1050
1051                 protected override void OnScroll (ScrollEventArgs se)
1052                 {
1053                         base.OnScroll (se);
1054                 }
1055
1056                 protected override void OnTabStopChanged (EventArgs e)
1057                 {
1058                         base.OnTabStopChanged (e);
1059                 }
1060
1061                 protected override void OnVisibleChanged (EventArgs e)
1062                 {
1063                         base.OnVisibleChanged (e);
1064                 }
1065
1066                 protected override bool ProcessCmdKey (ref Message m, Keys keyData)
1067                 {
1068                         return base.ProcessCmdKey (ref m, keyData);
1069                 }
1070
1071                 protected override bool ProcessDialogKey (Keys keyData)
1072                 {
1073                         if (!this.KeyboardActive)
1074                                 return false;
1075
1076                         // Give each item a chance to handle the key
1077                         foreach (ToolStripItem tsi in this.Items)
1078                                 if (tsi.ProcessDialogKey (keyData))
1079                                         return true;
1080
1081                         // See if I want to handle it
1082                         if (this.ProcessArrowKey (keyData))
1083                                 return true;
1084
1085                         ToolStrip ts = null;
1086
1087                         switch (keyData) {
1088                                 case Keys.Escape:
1089                                         this.Dismiss (ToolStripDropDownCloseReason.Keyboard);
1090                                         return true;
1091
1092                                 case Keys.Control | Keys.Tab:
1093                                         ts = ToolStripManager.GetNextToolStrip (this, true);
1094
1095                                         if (ts != null) {
1096                                                 foreach (ToolStripItem tsi in this.Items)
1097                                                         tsi.Dismiss (ToolStripDropDownCloseReason.Keyboard);
1098
1099                                                 ToolStripManager.SetActiveToolStrip (ts, true);
1100                                                 ts.SelectNextToolStripItem (null, true);
1101                                         }
1102
1103                                         return true;
1104                                 case Keys.Control | Keys.Shift | Keys.Tab:
1105                                         ts = ToolStripManager.GetNextToolStrip (this, false);
1106
1107                                         if (ts != null) {
1108                                                 foreach (ToolStripItem tsi in this.Items)
1109                                                         tsi.Dismiss (ToolStripDropDownCloseReason.Keyboard);
1110
1111                                                 ToolStripManager.SetActiveToolStrip (ts, true);
1112                                                 ts.SelectNextToolStripItem (null, true);
1113                                         }
1114
1115                                         return true;
1116                                 case Keys.Down:
1117                                 case Keys.Up:
1118                                 case Keys.Left:
1119                                 case Keys.Right:
1120                                         if (GetCurrentlySelectedItem () is ToolStripControlHost)
1121                                                 return false;
1122                                         break;
1123                         }
1124
1125                         return base.ProcessDialogKey (keyData);
1126                 }
1127
1128                 protected override bool ProcessMnemonic (char charCode)
1129                 {
1130                         // If any item has an explicit mnemonic, it gets the message
1131                         foreach (ToolStripItem tsi in this.Items)
1132                                 if (tsi.Enabled && tsi.Visible && !string.IsNullOrEmpty (tsi.Text) && Control.IsMnemonic (charCode, tsi.Text))
1133                                         return tsi.ProcessMnemonic (charCode);
1134
1135                         string code = Char.ToUpper (charCode).ToString ();
1136
1137                         // If any item's text starts with our letter, it gets the message
1138                         if (this is ToolStripDropDownMenu)
1139                                 foreach (ToolStripItem tsi in this.Items)
1140                                         if (tsi.Enabled && tsi.Visible && !string.IsNullOrEmpty (tsi.Text) && tsi.Text.ToUpper ().StartsWith (code) && !(tsi is ToolStripControlHost))
1141                                                 return tsi.ProcessMnemonic (charCode);
1142
1143                         return base.ProcessMnemonic (charCode);
1144                 }
1145
1146                 [MonoTODO ()]
1147                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1148                 protected virtual void RestoreFocus ()
1149                 {
1150                 }
1151
1152                 [MonoTODO ()]
1153                 protected override void Select (bool directed, bool forward)
1154                 {
1155                         foreach (ToolStripItem tsi in this.DisplayedItems)
1156                                 if (tsi.CanSelect) {
1157                                         tsi.Select ();
1158                                         break;
1159                                 }
1160                 }
1161
1162                 protected override void SetBoundsCore (int x, int y, int width, int height, BoundsSpecified specified)
1163                 {
1164                         base.SetBoundsCore (x, y, width, height, specified);
1165                 }
1166
1167                 protected virtual void SetDisplayedItems ()
1168                 {
1169                         this.displayed_items.Clear ();
1170
1171                         foreach (ToolStripItem tsi in this.items)
1172                                 if (tsi.Placement == ToolStripItemPlacement.Main && tsi.Available) {
1173                                         this.displayed_items.AddNoOwnerOrLayout (tsi);
1174                                         tsi.Parent = this;
1175                                 }
1176                                 else if (tsi.Placement == ToolStripItemPlacement.Overflow)
1177                                         tsi.Parent = this.OverflowButton.DropDown;
1178
1179                         if (this.OverflowButton != null)
1180                                 this.OverflowButton.DropDown.SetDisplayedItems ();
1181                 }
1182
1183                 protected internal void SetItemLocation (ToolStripItem item, Point location)
1184                 {
1185                         if (item == null)
1186                                 throw new ArgumentNullException ("item");
1187
1188                         if (item.Owner != this)
1189                                 throw new NotSupportedException ("The item is not owned by this ToolStrip");
1190
1191                         item.SetBounds (new Rectangle (location, item.Size));
1192                 }
1193
1194                 protected internal static void SetItemParent (ToolStripItem item, ToolStrip parent)
1195                 {
1196                         if (item.Owner != null) {
1197                                 item.Owner.Items.RemoveNoOwnerOrLayout (item);
1198
1199                                 if (item.Owner is ToolStripOverflow)
1200                                         (item.Owner as ToolStripOverflow).ParentToolStrip.Items.RemoveNoOwnerOrLayout (item);
1201                         }
1202
1203                         parent.Items.AddNoOwnerOrLayout (item);
1204                         item.Parent = parent;
1205                 }
1206
1207                 protected override void SetVisibleCore (bool visible)
1208                 {
1209                         base.SetVisibleCore (visible);
1210                 }
1211
1212                 protected override void WndProc (ref Message m)
1213                 {
1214                         base.WndProc (ref m);
1215                 }
1216                 #endregion
1217
1218                 #region Public Events
1219                 static object BeginDragEvent = new object ();
1220                 static object EndDragEvent = new object ();
1221                 static object ItemAddedEvent = new object ();
1222                 static object ItemClickedEvent = new object ();
1223                 static object ItemRemovedEvent = new object ();
1224                 static object LayoutCompletedEvent = new object ();
1225                 static object LayoutStyleChangedEvent = new object ();
1226                 static object PaintGripEvent = new object ();
1227                 static object RendererChangedEvent = new object ();
1228
1229                 [Browsable (true)]
1230                 [EditorBrowsable (EditorBrowsableState.Always)]
1231                 public new event EventHandler AutoSizeChanged {
1232                         add { base.AutoSizeChanged += value; }
1233                         remove { base.AutoSizeChanged -= value; }
1234                 }
1235
1236                 [MonoTODO ()]
1237                 public event EventHandler BeginDrag {
1238                         add { Events.AddHandler (BeginDragEvent, value); }
1239                         remove { Events.RemoveHandler (BeginDragEvent, value); }
1240                 }
1241
1242                 [Browsable (false)]
1243                 public new event EventHandler CausesValidationChanged {
1244                         add { base.CausesValidationChanged += value; }
1245                         remove { base.CausesValidationChanged -= value; }
1246                 }
1247
1248                 [Browsable (false)]
1249                 [EditorBrowsable (EditorBrowsableState.Never)]
1250                 public new event ControlEventHandler ControlAdded {
1251                         add { base.ControlAdded += value; }
1252                         remove { base.ControlAdded -= value; }
1253                 }
1254
1255                 [Browsable (false)]
1256                 [EditorBrowsable (EditorBrowsableState.Never)]
1257                 public new event ControlEventHandler ControlRemoved {
1258                         add { base.ControlRemoved += value; }
1259                         remove { base.ControlRemoved -= value; }
1260                 }
1261
1262                 [Browsable (false)]
1263                 public new event EventHandler CursorChanged {
1264                         add { base.CursorChanged += value; }
1265                         remove { base.CursorChanged -= value; }
1266                 }
1267
1268                 [MonoTODO ()]
1269                 public event EventHandler EndDrag {
1270                         add { Events.AddHandler (EndDragEvent, value); }
1271                         remove { Events.RemoveHandler (EndDragEvent, value); }
1272                 }
1273
1274                 [Browsable (false)]
1275                 public new event EventHandler ForeColorChanged {
1276                         add { base.ForeColorChanged += value; }
1277                         remove { base.ForeColorChanged -= value; }
1278                 }
1279
1280                 public event ToolStripItemEventHandler ItemAdded {
1281                         add { Events.AddHandler (ItemAddedEvent, value); }
1282                         remove { Events.RemoveHandler (ItemAddedEvent, value); }
1283                 }
1284
1285                 public event ToolStripItemClickedEventHandler ItemClicked {
1286                         add { Events.AddHandler (ItemClickedEvent, value); }
1287                         remove { Events.RemoveHandler (ItemClickedEvent, value); }
1288                 }
1289
1290                 public event ToolStripItemEventHandler ItemRemoved {
1291                         add { Events.AddHandler (ItemRemovedEvent, value); }
1292                         remove { Events.RemoveHandler (ItemRemovedEvent, value); }
1293                 }
1294
1295                 public event EventHandler LayoutCompleted {
1296                         add { Events.AddHandler (LayoutCompletedEvent, value); }
1297                         remove { Events.RemoveHandler (LayoutCompletedEvent, value); }
1298                 }
1299
1300                 public event EventHandler LayoutStyleChanged {
1301                         add { Events.AddHandler (LayoutStyleChangedEvent, value); }
1302                         remove { Events.RemoveHandler (LayoutStyleChangedEvent, value); }
1303                 }
1304
1305                 public event PaintEventHandler PaintGrip {
1306                         add { Events.AddHandler (PaintGripEvent, value); }
1307                         remove { Events.RemoveHandler (PaintGripEvent, value); }
1308                 }
1309
1310                 public event EventHandler RendererChanged {
1311                         add { Events.AddHandler (RendererChangedEvent, value); }
1312                         remove { Events.RemoveHandler (RendererChangedEvent, value); }
1313                 }
1314                 #endregion
1315
1316                 #region Internal Properties
1317                 internal virtual bool KeyboardActive
1318                 {
1319                         get { return this.keyboard_active; }
1320                         set {
1321                                 if (this.keyboard_active != value) {
1322                                         this.keyboard_active = value;
1323
1324                                         if (value)
1325                                                 Application.KeyboardCapture = this;
1326                                         else if (Application.KeyboardCapture == this) {
1327                                                 Application.KeyboardCapture = null;
1328                                                 ToolStripManager.ActivatedByKeyboard = false;
1329                                         }
1330
1331                                         // Redraw for mnemonic underlines
1332                                         this.Invalidate ();
1333                                 }
1334                         }
1335                 }
1336                 #endregion
1337
1338                 #region Private Methods
1339                 internal virtual Rectangle CalculateConnectedArea ()
1340                 {
1341                         return Rectangle.Empty;
1342                 }
1343
1344                 internal void ChangeSelection (ToolStripItem nextItem)
1345                 {
1346                         if (Application.KeyboardCapture != this)
1347                                 ToolStripManager.SetActiveToolStrip (this, ToolStripManager.ActivatedByKeyboard);
1348
1349                         foreach (ToolStripItem tsi in this.Items)
1350                                 if (tsi != nextItem)
1351                                         tsi.Dismiss (ToolStripDropDownCloseReason.Keyboard);
1352
1353                         ToolStripItem current = GetCurrentlySelectedItem ();
1354
1355                         if (current != null && !(current is ToolStripControlHost))
1356                                 this.FocusInternal (true);
1357
1358                         if (nextItem is ToolStripControlHost)
1359                                 (nextItem as ToolStripControlHost).Focus ();
1360
1361                         nextItem.Select ();
1362
1363                         if (nextItem.Parent is MenuStrip && (nextItem.Parent as MenuStrip).MenuDroppedDown)
1364                                 (nextItem as ToolStripMenuItem).HandleAutoExpansion ();
1365                 }
1366
1367                 internal virtual void Dismiss ()
1368                 {
1369                         this.Dismiss (ToolStripDropDownCloseReason.AppClicked);
1370                 }
1371
1372                 internal virtual void Dismiss (ToolStripDropDownCloseReason reason)
1373                 {
1374                         // Release our stranglehold on the keyboard
1375                         this.KeyboardActive = false;
1376
1377                         // Set our drop down flag to false;
1378                         this.menu_selected = false;
1379
1380                         // Make sure all of our items are deselected and repainted
1381                         foreach (ToolStripItem tsi in this.Items)
1382                                 tsi.Dismiss (reason);
1383
1384                         // We probably need to redraw for mnemonic underlines
1385                         this.Invalidate ();
1386                 }
1387
1388                 internal ToolStripItem GetCurrentlySelectedItem ()
1389                 {
1390                         foreach (ToolStripItem tsi in this.DisplayedItems)
1391                                 if (tsi.Selected)
1392                                         return tsi;
1393
1394                         return null;
1395                 }
1396
1397                 internal ToolStripItem GetCurrentlyFocusedItem ()
1398                 {
1399                         foreach (ToolStripItem tsi in this.DisplayedItems)
1400                                 if ((tsi is ToolStripControlHost) && (tsi as ToolStripControlHost).Control.Focused)
1401                                         return tsi;
1402
1403                         return null;
1404                 }
1405
1406                 internal override Size GetPreferredSizeCore (Size proposedSize)
1407                 {
1408                         return GetToolStripPreferredSize (proposedSize);
1409                 }
1410
1411                 internal virtual Size GetToolStripPreferredSize (Size proposedSize)
1412                 {
1413                         Size new_size = Size.Empty;
1414
1415                         // TODO: This is total duct tape.  We really have to call into the correct
1416                         // layout engine, do a dry run of the layout, and find out our true
1417                         // preferred dimensions.
1418                         if (this.LayoutStyle == ToolStripLayoutStyle.Flow) {
1419                                 Point currentLocation = Point.Empty;
1420                                 int tallest = 0;
1421
1422                                 foreach (ToolStripItem tsi in items) {
1423                                         if ((DisplayRectangle.Width - currentLocation.X) < (tsi.Width + tsi.Margin.Horizontal)) {
1424
1425                                                 currentLocation.Y += tallest;
1426                                                 tallest = 0;
1427
1428                                                 currentLocation.X = DisplayRectangle.Left;
1429                                         }
1430
1431                                         // Offset the left margin and set the control to our point
1432                                         currentLocation.Offset (tsi.Margin.Left, 0);
1433                                         tallest = Math.Max (tallest, tsi.Height + tsi.Margin.Vertical);
1434
1435                                         // Update our location pointer
1436                                         currentLocation.X += tsi.Width + tsi.Margin.Right;
1437                                 }
1438
1439                                 currentLocation.Y += tallest;
1440                                 return new Size (currentLocation.X, currentLocation.Y);
1441                         }
1442
1443                         if (this.orientation == Orientation.Vertical) {
1444                                 foreach (ToolStripItem tsi in this.items)
1445                                         if (tsi.Available)  {
1446                                                 Size tsi_preferred = tsi.GetPreferredSize (Size.Empty);
1447                                                 new_size.Height += tsi_preferred.Height + tsi.Margin.Top + tsi.Margin.Bottom;
1448
1449                                                 if (new_size.Width < (this.Padding.Horizontal + tsi_preferred.Width + tsi.Margin.Horizontal))
1450                                                         new_size.Width = (this.Padding.Horizontal + tsi_preferred.Width + tsi.Margin.Horizontal);
1451                                         }
1452
1453                                 new_size.Height += (this.GripRectangle.Height + this.GripMargin.Vertical + this.Padding.Vertical + 4);
1454
1455                                 if (new_size.Width == 0)
1456                                         new_size.Width = ExplicitBounds.Width;
1457
1458                                 return new_size;
1459                         } else {
1460                                 foreach (ToolStripItem tsi in this.items)
1461                                         if (tsi.Available) {
1462                                                 Size tsi_preferred = tsi.GetPreferredSize (Size.Empty);
1463                                                 new_size.Width += tsi_preferred.Width + tsi.Margin.Left + tsi.Margin.Right;
1464
1465                                                 if (new_size.Height < (this.Padding.Vertical + tsi_preferred.Height + tsi.Margin.Vertical))
1466                                                         new_size.Height = (this.Padding.Vertical + tsi_preferred.Height + tsi.Margin.Vertical);
1467                                         }
1468
1469                                 new_size.Width += (this.GripRectangle.Width + this.GripMargin.Horizontal + this.Padding.Horizontal + 4);
1470
1471                                 if (new_size.Height == 0)
1472                                         new_size.Height = ExplicitBounds.Height;
1473
1474                                 if (this is StatusStrip)
1475                                         new_size.Height = Math.Max (new_size.Height, 22);
1476
1477                                 return new_size;
1478                         }
1479                 }
1480
1481                 internal virtual ToolStrip GetTopLevelToolStrip ()
1482                 {
1483                         return this;
1484                 }
1485
1486                 internal virtual void HandleItemClick (ToolStripItem dismissingItem)
1487                 {
1488                         this.GetTopLevelToolStrip ().Dismiss (ToolStripDropDownCloseReason.ItemClicked);
1489                 }
1490
1491                 internal void HideMenus (bool release, ToolStripDropDownCloseReason reason)
1492                 {
1493                         if (this is MenuStrip && release && menu_selected)
1494                                 (this as MenuStrip).FireMenuDeactivate ();
1495
1496                         if (release)
1497                                 menu_selected = false;
1498
1499                         NotifySelectedChanged (null);
1500                 }
1501
1502                 internal void NotifySelectedChanged (ToolStripItem tsi)
1503                 {
1504                         foreach (ToolStripItem tsi2 in this.DisplayedItems)
1505                                 if (tsi != tsi2)
1506                                         if (tsi2 is ToolStripDropDownItem)
1507                                                 (tsi2 as ToolStripDropDownItem).HideDropDown (ToolStripDropDownCloseReason.Keyboard);
1508
1509                         if (this.OverflowButton != null) {
1510                                 ToolStripItemCollection tsic = this.OverflowButton.DropDown.DisplayedItems;
1511
1512                                 foreach (ToolStripItem tsi2 in tsic)
1513                                         if (tsi != tsi2)
1514                                                 if (tsi2 is ToolStripDropDownItem)
1515                                                         (tsi2 as ToolStripDropDownItem).HideDropDown (ToolStripDropDownCloseReason.Keyboard);
1516
1517                                 this.OverflowButton.HideDropDown ();
1518                         }
1519
1520                         foreach (ToolStripItem tsi2 in this.Items)
1521                                 if (tsi != tsi2)
1522                                         tsi2.Dismiss (ToolStripDropDownCloseReason.Keyboard);
1523                 }
1524
1525                 internal virtual bool OnMenuKey ()
1526                 {
1527                         return false;
1528                 }
1529
1530                 internal virtual bool ProcessArrowKey (Keys keyData)
1531                 {
1532                         ToolStripItem tsi;
1533
1534                         switch (keyData) {
1535                                 case Keys.Right:
1536                                         tsi = this.GetCurrentlySelectedItem ();
1537
1538                                         if (tsi is ToolStripControlHost)
1539                                                 return false;
1540
1541                                         tsi = this.SelectNextToolStripItem (tsi, true);
1542
1543                                         if (tsi is ToolStripControlHost)
1544                                                 (tsi as ToolStripControlHost).Focus ();
1545
1546                                         return true;
1547                                 case Keys.Tab:
1548                                         tsi = this.GetCurrentlySelectedItem ();
1549
1550                                         tsi = this.SelectNextToolStripItem (tsi, true);
1551
1552                                         if (tsi is ToolStripControlHost)
1553                                                 (tsi as ToolStripControlHost).Focus ();
1554
1555                                         return true;
1556                                 case Keys.Left:
1557                                         tsi = this.GetCurrentlySelectedItem ();
1558
1559                                         if (tsi is ToolStripControlHost)
1560                                                 return false;
1561
1562                                         tsi = this.SelectNextToolStripItem (tsi, false);
1563
1564                                         if (tsi is ToolStripControlHost)
1565                                                 (tsi as ToolStripControlHost).Focus ();
1566
1567                                         return true;
1568                                 case Keys.Shift | Keys.Tab:
1569                                         tsi = this.GetCurrentlySelectedItem ();
1570
1571                                         tsi = this.SelectNextToolStripItem (tsi, false);
1572
1573                                         if (tsi is ToolStripControlHost)
1574                                                 (tsi as ToolStripControlHost).Focus ();
1575
1576                                         return true;
1577                         }
1578
1579                         return false;
1580                 }
1581
1582                 internal virtual ToolStripItem SelectNextToolStripItem (ToolStripItem start, bool forward)
1583                 {
1584                         ToolStripItem next_item = this.GetNextItem (start, forward ? ArrowDirection.Right : ArrowDirection.Left);
1585
1586                         if (next_item == null)
1587                                 return next_item;
1588
1589                         this.ChangeSelection (next_item);
1590
1591                         if (next_item is ToolStripControlHost)
1592                                 (next_item as ToolStripControlHost).Focus ();
1593
1594                         return next_item;
1595                 }
1596
1597                 #region Stuff for ToolTips
1598                 private void MouseEnteredItem (ToolStripItem item)
1599                 {
1600                         if (this.show_item_tool_tips && !(item is ToolStripTextBox)) {
1601                                 tooltip_currently_showing = item;
1602                                 ToolTipTimer.Start ();
1603                         }
1604                 }
1605
1606                 private void MouseLeftItem (ToolStripItem item)
1607                 {
1608                         ToolTipTimer.Stop ();
1609                         ToolTipWindow.Hide (this);
1610                         tooltip_currently_showing = null;
1611                 }
1612
1613                 private Timer ToolTipTimer {
1614                         get {
1615                                 if (tooltip_timer == null) {
1616                                         tooltip_timer = new Timer ();
1617                                         tooltip_timer.Enabled = false;
1618                                         tooltip_timer.Interval = 500;
1619                                         tooltip_timer.Tick += new EventHandler (ToolTipTimer_Tick);
1620                                 }
1621
1622                                 return tooltip_timer;
1623                         }
1624                 }
1625
1626                 private ToolTip ToolTipWindow {
1627                         get {
1628                                 if (tooltip_window == null)
1629                                         tooltip_window = new ToolTip ();
1630
1631                                 return tooltip_window;
1632                         }
1633                 }
1634
1635                 private void ToolTipTimer_Tick (object o, EventArgs args)
1636                 {
1637                         string tooltip = tooltip_currently_showing.GetToolTip ();
1638
1639                         if (!string.IsNullOrEmpty (tooltip))
1640                                 ToolTipWindow.Present (this, tooltip);
1641
1642                         tooltip_currently_showing.FireEvent (EventArgs.Empty, ToolStripItemEventType.MouseHover);
1643
1644                         ToolTipTimer.Stop ();
1645                 }
1646                 #endregion
1647
1648                 #region Stuff for Merging
1649                 internal ToolStrip CurrentlyMergedWith {
1650                         get { return this.currently_merged_with; }
1651                         set { this.currently_merged_with = value; }
1652                 }
1653
1654                 internal List<ToolStripItem> HiddenMergedItems {
1655                         get {
1656                                 if (this.hidden_merged_items == null)
1657                                         this.hidden_merged_items = new List<ToolStripItem> ();
1658
1659                                 return this.hidden_merged_items;
1660                         }
1661                 }
1662
1663                 internal bool IsCurrentlyMerged {
1664                         get { return this.is_currently_merged; }
1665                         set {
1666                                 this.is_currently_merged = value;
1667
1668                                 if (!value && this is MenuStrip)
1669                                         foreach (ToolStripMenuItem tsmi in this.Items)
1670                                                 tsmi.DropDown.IsCurrentlyMerged = value;
1671                          }
1672                 }
1673
1674                 internal void BeginMerge ()
1675                 {
1676                         if (!IsCurrentlyMerged) {
1677                                 IsCurrentlyMerged = true;
1678
1679                                 if (this.pre_merge_items == null) {
1680                                         this.pre_merge_items = new List<ToolStripItem> ();
1681
1682                                 foreach (ToolStripItem tsi in this.Items)
1683                                         this.pre_merge_items.Add (tsi);
1684                                 }
1685                         }
1686                 }
1687
1688                 internal void RevertMergeItem (ToolStripItem item)
1689                 {
1690                         int index = 0;
1691
1692                         // Remove it from it's current Parent
1693                         if (item.Parent != null && item.Parent != this) {
1694                                 if (item.Parent is ToolStripOverflow)
1695                                         (item.Parent as ToolStripOverflow).ParentToolStrip.Items.RemoveNoOwnerOrLayout (item);
1696                                 else
1697                                         item.Parent.Items.RemoveNoOwnerOrLayout (item);
1698
1699                                 item.Parent = item.Owner;
1700                         }
1701
1702                         // Find where the item was before the merge
1703                         index = item.Owner.pre_merge_items.IndexOf (item);
1704
1705                         // Find the first pre-merge item that was after this item, that
1706                         // is currently in the Items collection.  Insert our item before
1707                         // that one.
1708                         for (int i = index; i < this.pre_merge_items.Count; i++) {
1709                                 if (this.Items.Contains (this.pre_merge_items[i])) {
1710                                         item.Owner.Items.InsertNoOwnerOrLayout (this.Items.IndexOf (this.pre_merge_items[i]), item);
1711                                         return;
1712                                 }
1713                         }
1714
1715                         // There aren't any items that are supposed to be after this item,
1716                         // so just append it to the end.
1717                         item.Owner.Items.AddNoOwnerOrLayout (item);
1718                 }
1719                 #endregion
1720                 #endregion
1721
1722                 #region ToolStripAccessibleObject
1723                 [ComVisible (true)]
1724                 public class ToolStripAccessibleObject : ControlAccessibleObject
1725                 {
1726                         #region Public Constructor
1727                         public ToolStripAccessibleObject (ToolStrip owner) : base (owner)
1728                         {
1729                         }
1730                         #endregion
1731
1732                         #region Public Properties
1733                         public override AccessibleRole Role {
1734                                 get { return AccessibleRole.ToolBar; }
1735                         }
1736                         #endregion
1737
1738                         #region Public Methods
1739                         public override AccessibleObject GetChild (int index)
1740                         {
1741                                 return base.GetChild (index);
1742                         }
1743
1744                         public override int GetChildCount ()
1745                         {
1746                                 return (owner as ToolStrip).Items.Count;
1747                         }
1748
1749                         public override AccessibleObject HitTest (int x, int y)
1750                         {
1751                                 return base.HitTest (x, y);
1752                         }
1753                         #endregion
1754                 }
1755                 #endregion
1756         }
1757 }
1758 #endif