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// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// Copyright (c) 2004-2005 Novell, Inc.
//
// Authors:
// Jordi Mas i Hernandez, jordi@ximian.com
//
// TODO:
// - MDI integration
// - ShortCut navigation
//
// NOT COMPLETE
using System.Collections;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Reflection;
using System.Runtime.InteropServices;
namespace System.Windows.Forms
{
[Designer ("Microsoft.VisualStudio.Windows.Forms.MenuDesigner, " + Consts.AssemblyMicrosoft_VisualStudio, "System.ComponentModel.Design.IDesigner")]
[ToolboxItemFilter("System.Windows.Forms", ToolboxItemFilterType.Allow)]
[ListBindable(false)]
public abstract class Menu : Component
{
internal MenuItemCollection menu_items;
internal IntPtr menu_handle = IntPtr.Zero;
internal Menu parent_menu = null;
System.Drawing.Rectangle rect;
internal Control Wnd;
internal MenuTracker tracker;
public const int FindHandle = 0;
public const int FindShortcut = 1;
protected Menu (MenuItem[] items)
{
menu_items = new MenuItemCollection (this);
if (items != null)
menu_items.AddRange (items);
}
#region Public Properties
[BrowsableAttribute(false)]
[EditorBrowsableAttribute(EditorBrowsableState.Advanced)]
[DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Hidden)]
public IntPtr Handle {
get { return menu_handle; }
}
internal virtual void OnMenuChanged (EventArgs e)
{
if (MenuChanged != null)
MenuChanged (this, e);
}
[BrowsableAttribute(false)]
[DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Hidden)]
public virtual bool IsParent {
get {
if (menu_items != null && menu_items.Count > 0)
return true;
else
return false;
}
}
[BrowsableAttribute(false)]
[DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Hidden)]
public MenuItem MdiListItem {
get {
throw new NotImplementedException ();
}
}
[BrowsableAttribute(false)]
[DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Content)]
[MergableProperty(false)]
public MenuItemCollection MenuItems {
get { return menu_items; }
}
#endregion Public Properties
#region Private Properties
internal System.Drawing.Rectangle Rect {
get {
return rect;
}
}
internal MenuItem SelectedItem {
get {
foreach (MenuItem item in MenuItems)
if ((item.Status & DrawItemState.Selected) == DrawItemState.Selected)
return item;
return null;
}
}
internal int Height {
get { return rect.Height; }
set { rect.Height = value; }
}
internal int Width {
get { return rect.Width; }
set { rect.Width = value; }
}
internal int X {
get { return rect.X; }
set { rect.X = value; }
}
internal int Y {
get { return rect.Y; }
set { rect.Y = value; }
}
internal MenuTracker Tracker {
get {
Menu top = this;
while (top.parent_menu != null)
top = top.parent_menu;
return top.tracker;
}
}
#endregion Private Properties
#region Public Methods
protected void CloneMenu (Menu menuSrc)
{
Dispose (true);
menu_items = new MenuItemCollection (this);
for (int i = 0; i < menuSrc.MenuItems.Count ; i++)
menu_items.Add (menuSrc.MenuItems [i].CloneMenu ());
}
protected override void Dispose (bool disposing)
{
if (disposing) {
if (menu_handle != IntPtr.Zero) {
menu_handle = IntPtr.Zero;
}
}
}
// From Microsoft documentation is impossible to guess that
// this method is supossed to do
public MenuItem FindMenuItem (int type, IntPtr value)
{
return null;
}
protected int FindMergePosition (int mergeOrder)
{
int cnt = MenuItems.Count, cur, pos;
for (pos = 0; pos < cnt; ) {
cur = (pos + cnt) /2;
if (MenuItems[cur].MergeOrder > mergeOrder) {
cnt = cur;
} else {
pos = cur +1;
}
}
return pos;
}
public ContextMenu GetContextMenu ()
{
for (Menu item = this; item != null; item = item.parent_menu) {
if (item is ContextMenu) {
return (ContextMenu) item;
}
}
return null;
}
public MainMenu GetMainMenu ()
{
for (Menu item = this; item != null; item = item.parent_menu) {
if (item is MainMenu) {
return (MainMenu) item;
}
}
return null;
}
public virtual void MergeMenu (Menu menuSrc)
{
if (menuSrc == this)
throw new ArgumentException ("The menu cannot be merged with itself");
for (int i = 0; i < menuSrc.MenuItems.Count; i++){
switch (menuSrc.MenuItems[i].MergeType) {
case MenuMerge.Remove: // Item not included
break;
case MenuMerge.Add:
{
int pos = FindMergePosition (menuSrc.MenuItems[i].MergeOrder);
MenuItems.Add (pos, menuSrc.MenuItems[i].CloneMenu ());
break;
}
case MenuMerge.Replace:
case MenuMerge.MergeItems:
{
int pos = FindMergePosition (menuSrc.MenuItems[i].MergeOrder - 1);
MenuItems.Insert (pos, menuSrc.MenuItems[i].CloneMenu ());
break;
}
default:
break;
}
}
}
internal bool ProcessCmdKey (ref Message msg, Keys keyData)
{
if (tracker == null)
return false;
return tracker.ProcessKeys (ref msg, keyData);
}
public override string ToString ()
{
return base.ToString () + ", Items.Count: " + MenuItems.Count;
}
#endregion Public Methods
internal event EventHandler MenuChanged;
[ListBindable(false)]
public class MenuItemCollection : IList, ICollection, IEnumerable
{
private Menu owner;
private ArrayList items = new ArrayList ();
public MenuItemCollection (Menu owner)
{
this.owner = owner;
}
#region Public Properties
public virtual int Count {
get { return items.Count;}
}
public virtual bool IsReadOnly {
get { return false;}
}
bool ICollection.IsSynchronized {
get { return false;}
}
object ICollection.SyncRoot {
get { return this;}
}
bool IList.IsFixedSize {
get { return false;}
}
public virtual MenuItem this [int index] {
get {
if (index < 0 || index >= Count)
throw new ArgumentOutOfRangeException ("Index of out range");
return (MenuItem) items[index];
}
}
object IList.this[int index] {
get { return items[index]; }
set { throw new NotSupportedException (); }
}
#endregion Public Properties
#region Public Methods
public virtual int Add (MenuItem mi)
{
if (mi.Parent != null)
mi.Parent.MenuItems.Remove (mi);
items.Add (mi);
mi.Index = items.Count - 1;
UpdateItem (mi);
owner.OnMenuChanged (EventArgs.Empty);
if (owner.parent_menu != null)
owner.parent_menu.OnMenuChanged (EventArgs.Empty);
return items.Count - 1;
}
public virtual MenuItem Add (string s)
{
MenuItem item = new MenuItem (s);
Add (item);
return item;
}
public virtual int Add (int index, MenuItem mi)
{
if (index < 0 || index > Count)
throw new ArgumentOutOfRangeException ("Index of out range");
ArrayList new_items = new ArrayList (Count + 1);
for (int i = 0; i < index; i++)
new_items.Add (items[i]);
new_items.Add (mi);
for (int i = index; i < Count; i++)
new_items.Add (items[i]);
items = new_items;
UpdateItemsIndices ();
UpdateItem (mi);
return index;
}
private void UpdateItem (MenuItem mi)
{
mi.parent_menu = owner;
owner.OnMenuChanged (EventArgs.Empty);
if (owner.parent_menu != null)
owner.parent_menu.OnMenuChanged (EventArgs.Empty);
if (owner.Tracker != null)
owner.Tracker.AddShortcuts (mi);
}
internal void Insert (int index, MenuItem mi)
{
if (index < 0 || index > Count)
throw new ArgumentOutOfRangeException ("Index of out range");
UpdateItemsIndices ();
UpdateItem (mi);
}
public virtual MenuItem Add (string s, EventHandler e)
{
MenuItem item = new MenuItem (s, e);
Add (item);
return item;
}
public virtual MenuItem Add (string s, MenuItem[] items)
{
MenuItem item = new MenuItem (s, items);
Add (item);
return item;
}
public virtual void AddRange (MenuItem[] items)
{
if (items == null)
throw new ArgumentNullException ("items");
foreach (MenuItem mi in items)
Add (mi);
}
public virtual void Clear ()
{
MenuTracker tracker = owner.Tracker;
foreach (MenuItem item in items) {
if (tracker != null)
tracker.RemoveShortcuts (item);
item.parent_menu = null;
}
items.Clear ();
owner.OnMenuChanged (EventArgs.Empty);
}
public bool Contains (MenuItem value)
{
return items.Contains (value);
}
public virtual void CopyTo (Array dest, int index)
{
items.CopyTo (dest, index);
}
public virtual IEnumerator GetEnumerator ()
{
return items.GetEnumerator ();
}
int IList.Add (object value)
{
return Add ((MenuItem)value);
}
bool IList.Contains (object value)
{
return Contains ((MenuItem)value);
}
int IList.IndexOf (object value)
{
return IndexOf ((MenuItem)value);
}
void IList.Insert (int index, object value)
{
Insert (index, (MenuItem) value);
}
void IList.Remove (object value)
{
Remove ((MenuItem) value);
}
public int IndexOf (MenuItem value)
{
return items.IndexOf (value);
}
public virtual void Remove (MenuItem item)
{
RemoveAt (item.Index);
}
public virtual void RemoveAt (int index)
{
if (index < 0 || index >= Count)
throw new ArgumentOutOfRangeException ("Index of out range");
MenuItem item = (MenuItem) items [index];
MenuTracker tracker = owner.Tracker;
if (tracker != null)
tracker.RemoveShortcuts (item);
item.parent_menu = null;
items.RemoveAt (index);
UpdateItemsIndices ();
owner.OnMenuChanged (EventArgs.Empty);
}
#endregion Public Methods
#region Private Methods
private void UpdateItemsIndices ()
{
for (int i = 0; i < Count; i++) // Recalculate indeces
((MenuItem)items[i]).Index = i;
}
#endregion Private Methods
}
}
}
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