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//---------------------------------------------------------------------------
//
// <copyright file=SNBHelper.cs company=Microsoft>
// Copyright (C) Microsoft Corporation. All rights reserved.
// </copyright>
//
//
// Description: Implementation of StickyNoteControl's internal helper classes.
//
// See spec at http://tabletpc/longhorn/Specs/StickyNoteControlSpec.mht
//
// History:
// 04/19/2004 - waynezen - Expose more properties and methods
// 02/17/2004 - waynezen - Moved to TabletFramework
// 10/06/2003 - waynezen - Added Ink and snippet image supports.
// 09/02/2003 - waynezen - Created.
//
//---------------------------------------------------------------------------
using MS.Internal.Annotations.Component;
using MS.Utility;
using System;
using System.ComponentModel;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.Globalization;
using System.IO;
using System.Reflection;
using System.Resources;
using System.Runtime.InteropServices;
using System.Runtime.Serialization;
using System.Security;
using System.Security.Permissions;
using System.Threading;
using System.Windows;
using System.Windows.Annotations;
using System.Windows.Annotations.Storage;
using System.Windows.Controls;
using System.Windows.Controls.Primitives;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Resources;
using System.Windows.Markup;
using System.Windows.Shapes;
using System.Xml;
using System.Xml.XPath;
namespace MS.Internal.Controls.StickyNote
{
//-------------------------------------------------------------------------------
//
// Internal Classes
//
//-------------------------------------------------------------------------------
#region Internal Classes
// This is a helper class which is used as a lock which can lock or unlock a specified flag. The usage looks like:
//
// public class Test
// {
// public void MethodA()
// {
// // A lock is needed in a scope which can block MethodB likes a event handler.
// using ( LockHelper.AutoLocker locker = new LockHelper.AutoLocker(InternalLocker, LockHelper.LockFlag.SliderValueChanged) )
// {
// // Do some work.
// }
// }
//
// public void MethodB()
// {
// // We don't want to handle the below if the locker is locked.
// if ( !InternalLocker.IsLocked() )
// {
// // Do some work.
// }
// }
// }
internal class LockHelper
{
[Flags]
public enum LockFlag
{
AnnotationChanged = 0x00000001,
DataChanged = 0x00000002,
}
public class AutoLocker : IDisposable
{
public AutoLocker(LockHelper helper, LockFlag flag)
{
if(helper == null)
{
throw new ArgumentNullException("helper");
}
Debug.Assert(!helper.IsLocked(flag));
_helper = helper;
_flag = flag;
// Lock the locker at the object's creation time.
_helper.Lock(_flag);
}
public void Dispose()
{
Debug.Assert(_helper.IsLocked(_flag));
// Unlock the locker when it's being disposed.
_helper.Unlock(_flag);
GC.SuppressFinalize(this);
}
private AutoLocker() { }
private LockHelper _helper;
private LockFlag _flag;
}
public bool IsLocked(LockFlag flag)
{
return ( _backingStore & flag ) != 0;
}
private void Lock(LockFlag flag)
{
_backingStore |= flag;
}
private void Unlock(LockFlag flag)
{
_backingStore &= ( ~flag );
}
private LockFlag _backingStore;
}
// This class contains all constants which is used by StickyNoteControl component.
internal static class SNBConstants
{
//-------------------------------------------------------------------------------
//
// Internal Fields
//
//-------------------------------------------------------------------------------
#region Internal Fields
// The style ID of StickyNote's children
internal const string c_CloseButtonId = "PART_CloseButton";
internal const string c_TitleThumbId = "PART_TitleThumb";
internal const string c_BottomRightResizeThumbId = "PART_ResizeBottomRightThumb";
internal const string c_ContentControlId = "PART_ContentControl";
internal const string c_IconButtonId = "PART_IconButton";
internal const string c_CopyMenuId = "PART_CopyMenuItem";
internal const string c_PasteMenuId = "PART_PasteMenuItem";
internal const string c_ClipboardSeparatorId = "PART_ClipboardSeparator";
internal const string c_DeleteMenuId = "PART_DeleteMenuItem";
internal const string c_InkMenuId = "PART_InkMenuItem";
internal const string c_SelectMenuId = "PART_SelectMenuItem";
internal const string c_EraseMenuId = "PART_EraseMenuItem";
// CAF Resouce guids
internal const string MetaResourceName = "Meta Data"; // Snc MetaData
internal const string TextResourceName = "Text Data"; // Text
internal const string InkResourceName = "Ink Data"; // Ink
#endregion Internal Fields
}
#endregion Internal Classes
}
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