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                 ToolStripItem parent_item;
  42
  43                 #region Public Constructors
  44                 public ToolStripOverflow (ToolStripItem parentItem)
  45                 {
  46                         this.parent_item = parentItem;
  47                         this.OwnerItem = parentItem;
  48                 }
  49                 #endregion
  50
  51                 #region Public Properties
  52                 #endregion
  53
  54                 #region Protected Properties
  55                 protected internal override ToolStripItemCollection DisplayedItems {
  56                         get { return base.DisplayedItems; }
  57                 }
  58                 #endregion
  59
  60                 #region Public Methods
  61                 public override Size GetPreferredSize (Size constrainingSize)
  62                 {
  63                         return base.GetPreferredSize (constrainingSize);
  64                 }
  65                 #endregion
  66
  67                 #region Protected Methods
  68                 [MonoInternalNote ("This should stack in rows of ~3, but for now 1 column will work.")]
  69                 protected override void OnLayout (LayoutEventArgs e)
  70                 {
  71                         SetDisplayedItems ();
  72
  73                         // Find the widest menu item
  74                         int widest = 0;
  75
  76                         foreach (ToolStripItem tsi in this.DisplayedItems) {
  77                                 if (!tsi.Available)
  78                                         continue;
  79                                 if (tsi.GetPreferredSize (Size.Empty).Width > widest)
  80                                         widest = tsi.GetPreferredSize (Size.Empty).Width;
  81                         }
  82
  83                         int x = this.Padding.Left;
  84                         widest += this.Padding.Horizontal;
  85                         int y = this.Padding.Top;
  86
  87                         foreach (ToolStripItem tsi in this.DisplayedItems) {
  88                                 if (!tsi.Available)
  89                                         continue;
  90
  91                                 y += tsi.Margin.Top;
  92
  93                                 int height = 0;
  94
  95                                 if (tsi is ToolStripSeparator)
  96                                         height = 7;
  97                                 else
  98                                         height = 22;
  99
 100                                 tsi.SetBounds (new Rectangle (x, y, widest, height));
 101                                 y += tsi.Height + tsi.Margin.Bottom;
 102                         }
 103
 104                         this.Size = new Size (widest + this.Padding.Horizontal, y + this.Padding.Bottom);// + 2);
 105                 }
 106
 107                 protected override void SetDisplayedItems ()
 108                 {
 109                         this.displayed_items.Clear ();
 110
 111                         if (this.OwnerItem != null)
 112                                 foreach (ToolStripItem tsi in this.OwnerItem.Parent.Items)
 113                                         if (tsi.Placement == ToolStripItemPlacement.Overflow && tsi.Available && !(tsi is ToolStripSeparator)) {
 114                                                 this.displayed_items.AddNoOwnerOrLayout (tsi);
 115                                                 //tsi.Parent = this;
 116                                         }
 117
 118                         this.PerformLayout ();
 119                 }
 120                 #endregion
 121         }
 122 }
 123 #endif