Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / WinForms / Managed / System / WinForms / OwnerDrawPropertyBag.cs / 1 / OwnerDrawPropertyBag.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Windows.Forms { using System.Diagnostics; using System; using System.Drawing; using System.Diagnostics.CodeAnalysis; using System.Windows.Forms.Internal; using System.Windows.Forms; using Microsoft.Win32; using System.Runtime.Serialization; using System.Runtime.Serialization.Formatters; using System.Security.Permissions; ////// /// /// Class used to pass new font/color information around for "partial" ownerdraw list/treeview items. /// ///// [SuppressMessage("Microsoft.Usage", "CA2240:ImplementISerializableCorrectly")] [Serializable] public class OwnerDrawPropertyBag : MarshalByRefObject, ISerializable { Font font = null; Color foreColor = Color.Empty; Color backColor = Color.Empty; Control.FontHandleWrapper fontWrapper = null; private static object internalSyncObject = new object(); /** * Constructor used in deserialization * Has to be protected because OwnerDrawPropertyBag is not sealed. FxCop Rule CA2229. */ protected OwnerDrawPropertyBag(SerializationInfo info, StreamingContext context) { foreach (SerializationEntry entry in info) { if (entry.Name == "Font") { // SEC font = (Font) entry.Value; } else if (entry.Name =="ForeColor") { // SEC foreColor =(Color)entry.Value; } else if (entry.Name =="BackColor") { // SEC backColor = (Color)entry.Value; } } } internal OwnerDrawPropertyBag(){ } /// /// /// public Font Font { get { return font; } set { font = value; } } ///[To be supplied.] ////// /// public Color ForeColor { get { return foreColor; } set { foreColor = value; } } ///[To be supplied.] ////// /// public Color BackColor { get { return backColor; } set { backColor = value; } } internal IntPtr FontHandle { get { if (fontWrapper == null) { fontWrapper = new Control.FontHandleWrapper(Font); } return fontWrapper.Handle; } } ///[To be supplied.] ////// /// Returns whether or not this property bag contains all default values (is empty) /// public virtual bool IsEmpty() { return (Font == null && foreColor.IsEmpty && backColor.IsEmpty); } ////// /// Copies the bag. Always returns a valid ODPB object /// public static OwnerDrawPropertyBag Copy(OwnerDrawPropertyBag value) { lock(internalSyncObject) { OwnerDrawPropertyBag ret = new OwnerDrawPropertyBag(); if (value == null) return ret; ret.backColor = value.backColor; ret.foreColor = value.foreColor; ret.Font = value.font; return ret; } } ////// /// ISerializable private implementation /// ///[SecurityPermission(SecurityAction.LinkDemand, Flags=SecurityPermissionFlag.SerializationFormatter)] void ISerializable.GetObjectData(SerializationInfo si, StreamingContext context) { si.AddValue("BackColor", BackColor); si.AddValue("ForeColor", ForeColor); si.AddValue("Font", Font); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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