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

   1 //
   2 // ToolStripOverflow.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) 2007 Novell
  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
  35 namespace System.Windows.Forms
  36 {
  37         [ComVisible (true)]
  38         [ClassInterface (ClassInterfaceType.AutoDispatch)]
  39         public class ToolStripOverflow : ToolStripDropDown, IComponent, IDisposable
  40         {
  41                 #region Public Constructors
  42                 public ToolStripOverflow (ToolStripItem parentItem)
  43                 {
  44                         this.OwnerItem = parentItem;
  45                 }
  46                 #endregion
  47
  48                 #region Public Properties
  49                 #endregion
  50
  51                 #region Protected Properties
  52                 protected internal override ToolStripItemCollection DisplayedItems {
  53                         get { return base.DisplayedItems; }
  54                 }
  55                 #endregion
  56
  57                 #region Public Methods
  58                 public override Size GetPreferredSize (Size constrainingSize)
  59                 {
  60                         return base.GetPreferredSize (constrainingSize);
  61                 }
  62                 #endregion
  63
  64                 #region Protected Methods
  65                 [MonoInternalNote ("This should stack in rows of ~3, but for now 1 column will work.")]
  66                 protected override void OnLayout (LayoutEventArgs e)
  67                 {
  68                         SetDisplayedItems ();
  69
  70                         // Find the widest menu item
  71                         int widest = 0;
  72
  73                         foreach (ToolStripItem tsi in this.DisplayedItems) {
  74                                 if (!tsi.Available)
  75                                         continue;
  76                                 if (tsi.GetPreferredSize (Size.Empty).Width > widest)
  77                                         widest = tsi.GetPreferredSize (Size.Empty).Width;
  78                         }
  79
  80                         int x = this.Padding.Left;
  81                         widest += this.Padding.Horizontal;
  82                         int y = this.Padding.Top;
  83
  84                         foreach (ToolStripItem tsi in this.DisplayedItems) {
  85                                 if (!tsi.Available)
  86                                         continue;
  87
  88                                 y += tsi.Margin.Top;
  89
  90                                 int height = 0;
  91
  92                                 if (tsi is ToolStripSeparator)
  93                                         height = 7;
  94                                 else
  95                                         height = 22;
  96
  97                                 tsi.SetBounds (new Rectangle (x, y, widest, height));
  98                                 y += tsi.Height + tsi.Margin.Bottom;
  99                         }
 100
 101                         this.Size = new Size (widest + this.Padding.Horizontal, y + this.Padding.Bottom);// + 2);
 102                 }
 103
 104                 protected override void SetDisplayedItems ()
 105                 {
 106                         this.displayed_items.Clear ();
 107
 108                         if (this.OwnerItem != null)
 109                                 foreach (ToolStripItem tsi in this.OwnerItem.Parent.Items)
 110                                         if (tsi.Placement == ToolStripItemPlacement.Overflow && tsi.Available && !(tsi is ToolStripSeparator)) {
 111                                                 this.displayed_items.AddNoOwnerOrLayout (tsi);
 112                                                 //tsi.Parent = this;
 113                                         }
 114
 115                         this.PerformLayout ();
 116                 }
 117                 #endregion
 118         }
 119 }
 120 #endif