GeometryCollection.cs source code in C# .NET

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/ DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Core / System / Windows / Media / Generated / GeometryCollection.cs / 2 / GeometryCollection.cs

                            //---------------------------------------------------------------------------- 
//
// 
//    Copyright (C) Microsoft Corporation.  All rights reserved.
//  
//
// This file was generated, please do not edit it directly. 
// 
// Please see [....]/default.aspx/Microsoft.Projects.Avalon/MilCodeGen.html for more information.
// 
//---------------------------------------------------------------------------

using MS.Internal;
using MS.Internal.KnownBoxes; 
using MS.Internal.Collections;
using MS.Internal.PresentationCore; 
using MS.Utility; 
using System;
using System.Collections; 
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.Globalization; 
using System.Reflection;
using System.Runtime.InteropServices; 
using System.ComponentModel.Design.Serialization; 
using System.Text;
using System.Windows; 
using System.Windows.Media;
using System.Windows.Media.Effects;
using System.Windows.Media.Media3D;
using System.Windows.Media.Animation; 
using System.Windows.Media.Composition;
using System.Windows.Media.Imaging; 
using System.Windows.Markup; 
using System.Windows.Media.Converters;
using System.Security; 
using System.Security.Permissions;
using SR=MS.Internal.PresentationCore.SR;
using SRID=MS.Internal.PresentationCore.SRID;
// These types are aliased to match the unamanaged names used in interop 
using BOOL = System.UInt32;
using WORD = System.UInt16; 
using Float = System.Single; 

namespace System.Windows.Media 
{
    /// 
    /// A collection of Geometry objects.
    ///  

 
    public sealed partial class GeometryCollection : Animatable, IList, IList 
    {
        #region Constructors 

        //-----------------------------------------------------
        //
        //  Constructors 
        //
        //----------------------------------------------------- 
 

        ///  
        /// Initializes a new instance that is empty.
        /// 
        public GeometryCollection()
        { 
            _collection = new FrugalStructList();
        } 
 
        /// 
        /// Initializes a new instance that is empty and has the specified initial capacity. 
        /// 
        ///  int - The number of elements that the new list is initially capable of storing. 
        public GeometryCollection(int capacity)
        { 
            _collection = new FrugalStructList(capacity);
        } 
 
        /// 
        /// Creates a GeometryCollection with all of the same elements as collection 
        /// 
        public GeometryCollection(IEnumerable collection)
        {
            // The WritePreamble and WritePostscript aren't technically necessary 
            // in the constructor as of 1/20/05 but they are put here in case
            // their behavior changes at a later date 
 
            WritePreamble();
 
            if (collection != null)
            {
                bool needsItemValidation = true;
                ICollection icollectionOfT = collection as ICollection; 

                if (icollectionOfT != null) 
                { 
                    _collection = new FrugalStructList(icollectionOfT);
                } 
                else
                {
                    ICollection icollection = collection as ICollection;
 
                    if (icollection != null) // an IC but not and IC
                    { 
                        _collection = new FrugalStructList(icollection); 
                    }
                    else // not a IC or IC so fall back to the slower Add 
                    {
                        _collection = new FrugalStructList();

                        foreach (Geometry item in collection) 
                        {
                            if (item == null) 
                            { 
                                throw new System.ArgumentException(SR.Get(SRID.Collection_NoNull));
                            } 
                            Geometry newValue = item;
                            OnFreezablePropertyChanged(/* oldValue = */ null, newValue);
                            _collection.Add(newValue);
                            OnInsert(newValue); 
                        }
 
                        needsItemValidation = false; 
                    }
                } 

                if (needsItemValidation)
                {
                    foreach (Geometry item in collection) 
                    {
                        if (item == null) 
                        { 
                            throw new System.ArgumentException(SR.Get(SRID.Collection_NoNull));
                        } 
                        OnFreezablePropertyChanged(/* oldValue = */ null, item);
                        OnInsert(item);
                    }
                } 

 
                WritePostscript(); 
            }
            else 
            {
                throw new ArgumentNullException("collection");
            }
        } 

        #endregion Constructors 
 
        //------------------------------------------------------
        // 
        //  Public Methods
        //
        //-----------------------------------------------------
 
        #region Public Methods
 
        ///  
        ///     Shadows inherited Clone() with a strongly typed
        ///     version for convenience. 
        /// 
        public new GeometryCollection Clone()
        {
            return (GeometryCollection)base.Clone(); 
        }
 
        ///  
        ///     Shadows inherited CloneCurrentValue() with a strongly typed
        ///     version for convenience. 
        /// 
        public new GeometryCollection CloneCurrentValue()
        {
            return (GeometryCollection)base.CloneCurrentValue(); 
        }
 
 

 
        #endregion Public Methods

        //------------------------------------------------------
        // 
        //  Public Properties
        // 
        //------------------------------------------------------ 

 
        #region IList

        /// 
        ///     Adds "value" to the list 
        /// 
        public void Add(Geometry value) 
        { 
            AddHelper(value);
        } 

        /// 
        ///     Removes all elements from the list
        ///  
        public void Clear()
        { 
            WritePreamble(); 

            // As part of Clear()'ing the collection, we will iterate it and call 
            // OnFreezablePropertyChanged and OnRemove for each item.
            // However, OnRemove assumes that the item to be removed has already been
            // pulled from the underlying collection.  To statisfy this condition,
            // we store the old collection and clear _collection before we call these methods. 
            // As Clear() semantics do not include TrimToFit behavior, we create the new
            // collection storage at the same size as the previous.  This is to provide 
            // as close as possible the same perf characteristics as less complicated collections. 
            FrugalStructList oldCollection = _collection;
            _collection = new FrugalStructList(_collection.Capacity); 

            for (int i = oldCollection.Count - 1; i >= 0; i--)
            {
                OnFreezablePropertyChanged(/* oldValue = */ oldCollection[i], /* newValue = */ null); 

                // Fire the OnRemove handlers for each item.  We're not ensuring that 
                // all OnRemove's get called if a resumable exception is thrown. 
                // At this time, these call-outs are not public, so we do not handle exceptions.
                OnRemove( /* oldValue */ oldCollection[i]); 
            }

            ++_version;
            WritePostscript(); 
        }
 
        ///  
        ///     Determines if the list contains "value"
        ///  
        public bool Contains(Geometry value)
        {
            ReadPreamble();
 
            return _collection.Contains(value);
        } 
 
        /// 
        ///     Returns the index of "value" in the list 
        /// 
        public int IndexOf(Geometry value)
        {
            ReadPreamble(); 

            return _collection.IndexOf(value); 
        } 

        ///  
        ///     Inserts "value" into the list at the specified position
        /// 
        public void Insert(int index, Geometry value)
        { 
            if (value == null)
            { 
                throw new System.ArgumentException(SR.Get(SRID.Collection_NoNull)); 
            }
 
            WritePreamble();

            OnFreezablePropertyChanged(/* oldValue = */ null, /* newValue = */ value);
 
            _collection.Insert(index, value);
            OnInsert(value); 
 

            ++_version; 
            WritePostscript();
        }

        ///  
        ///     Removes "value" from the list
        ///  
        public bool Remove(Geometry value) 
        {
            WritePreamble(); 

            // By design collections "succeed silently" if you attempt to remove an item
            // not in the collection.  Therefore we need to first verify the old value exists
            // before calling OnFreezablePropertyChanged.  Since we already need to locate 
            // the item in the collection we keep the index and use RemoveAt(...) to do
            // the work.  (Windows OS #1016178) 
 
            // We use the public IndexOf to guard our UIContext since OnFreezablePropertyChanged
            // is only called conditionally.  IList.IndexOf returns -1 if the value is not found. 
            int index = IndexOf(value);

            if (index >= 0)
            { 
                Geometry oldValue = _collection[index];
 
                OnFreezablePropertyChanged(oldValue, null); 

                _collection.RemoveAt(index); 

                OnRemove(oldValue);

 
                ++_version;
                WritePostscript(); 
 
                return true;
            } 

            // Collection_Remove returns true, calls WritePostscript,
            // increments version, and does UpdateResource if it succeeds
 
            return false;
        } 
 
        /// 
        ///     Removes the element at the specified index 
        /// 
        public void RemoveAt(int index)
        {
            RemoveAtWithoutFiringPublicEvents(index); 

            // RemoveAtWithoutFiringPublicEvents incremented the version 
 
            WritePostscript();
        } 


        /// 
        ///     Removes the element at the specified index without firing 
        ///     the public Changed event.
        ///     The caller - typically a public method - is responsible for calling 
        ///     WritePostscript if appropriate. 
        /// 
        internal void RemoveAtWithoutFiringPublicEvents(int index) 
        {
            WritePreamble();

            Geometry oldValue = _collection[ index ]; 

            OnFreezablePropertyChanged(oldValue, null); 
 
            _collection.RemoveAt(index);
 
            OnRemove(oldValue);


            ++_version; 

            // No WritePostScript to avoid firing the Changed event. 
        } 

 
        /// 
        ///     Indexer for the collection
        /// 
        public Geometry this[int index] 
        {
            get 
            { 
                ReadPreamble();
 
                return _collection[index];
            }
            set
            { 
                if (value == null)
                { 
                    throw new System.ArgumentException(SR.Get(SRID.Collection_NoNull)); 
                }
 
                WritePreamble();

                if (!Object.ReferenceEquals(_collection[ index ], value))
                { 

                    Geometry oldValue = _collection[ index ]; 
                    OnFreezablePropertyChanged(oldValue, value); 

                    _collection[ index ] = value; 

                    OnSet(oldValue, value);
                }
 

                ++_version; 
                WritePostscript(); 
            }
        } 

        #endregion

        #region ICollection 

        ///  
        ///     The number of elements contained in the collection. 
        /// 
        public int Count 
        {
            get
            {
                ReadPreamble(); 

                return _collection.Count; 
            } 
        }
 
        /// 
        ///     Copies the elements of the collection into "array" starting at "index"
        /// 
        public void CopyTo(Geometry[] array, int index) 
        {
            ReadPreamble(); 
 
            if (array == null)
            { 
                throw new ArgumentNullException("array");
            }

            // This will not throw in the case that we are copying 
            // from an empty collection.  This is consistent with the
            // BCL Collection implementations. (Windows 1587365) 
            if (index < 0  || (index + _collection.Count) > array.Length) 
            {
                throw new ArgumentOutOfRangeException("index"); 
            }

            _collection.CopyTo(array, index);
        } 

        bool ICollection.IsReadOnly 
        { 
            get
            { 
                ReadPreamble();

                return IsFrozen;
            } 
        }
 
        #endregion 

        #region IEnumerable 

        /// 
        /// Returns an enumerator for the collection
        ///  
        public Enumerator GetEnumerator()
        { 
            ReadPreamble(); 

            return new Enumerator(this); 
        }

        IEnumerator IEnumerable.GetEnumerator()
        { 
            return this.GetEnumerator();
        } 
 
        #endregion
 
        #region IList

        bool IList.IsReadOnly
        { 
            get
            { 
                return ((ICollection)this).IsReadOnly; 
            }
        } 

        bool IList.IsFixedSize
        {
            get 
            {
                ReadPreamble(); 
 
                return IsFrozen;
            } 
        }

        object IList.this[int index]
        { 
            get
            { 
                return this[index]; 
            }
            set 
            {
                // Forwards to typed implementation
                this[index] = Cast(value);
            } 
        }
 
        int IList.Add(object value) 
        {
            // Forward to typed helper 
            return AddHelper(Cast(value));
        }

        bool IList.Contains(object value) 
        {
            return Contains(value as Geometry); 
        } 

        int IList.IndexOf(object value) 
        {
            return IndexOf(value as Geometry);
        }
 
        void IList.Insert(int index, object value)
        { 
            // Forward to IList Insert 
            Insert(index, Cast(value));
        } 

        void IList.Remove(object value)
        {
            Remove(value as Geometry); 
        }
 
        #endregion 

        #region ICollection 

        void ICollection.CopyTo(Array array, int index)
        {
            ReadPreamble(); 

            if (array == null) 
            { 
                throw new ArgumentNullException("array");
            } 

            // This will not throw in the case that we are copying
            // from an empty collection.  This is consistent with the
            // BCL Collection implementations. (Windows 1587365) 
            if (index < 0  || (index + _collection.Count) > array.Length)
            { 
                throw new ArgumentOutOfRangeException("index"); 
            }
 
            if (array.Rank != 1)
            {
                throw new ArgumentException(SR.Get(SRID.Collection_BadRank));
            } 

            // Elsewhere in the collection we throw an AE when the type is 
            // bad so we do it here as well to be consistent 
            try
            { 
                int count = _collection.Count;
                for (int i = 0; i < count; i++)
                {
                    array.SetValue(_collection[i], index + i); 
                }
            } 
            catch (InvalidCastException e) 
            {
                throw new ArgumentException(SR.Get(SRID.Collection_BadDestArray, this.GetType().Name), e); 
            }
        }

        bool ICollection.IsSynchronized 
        {
            get 
            { 
                ReadPreamble();
 
                return IsFrozen || Dispatcher != null;
            }
        }
 
        object ICollection.SyncRoot
        { 
            get 
            {
                ReadPreamble(); 
                return this;
            }
        }
        #endregion 

        #region IEnumerable 
 
        IEnumerator IEnumerable.GetEnumerator()
        { 
            return this.GetEnumerator();
        }

        #endregion 

        #region Internal Helpers 
 
        /// 
        /// A frozen empty GeometryCollection. 
        /// 
        internal static GeometryCollection Empty
        {
            get 
            {
                if (s_empty == null) 
                { 
                    GeometryCollection collection = new GeometryCollection();
                    collection.Freeze(); 
                    s_empty = collection;
                }

                return s_empty; 
            }
        } 
 
        /// 
        /// Helper to return read only access. 
        /// 
        internal Geometry Internal_GetItem(int i)
        {
            return _collection[i]; 
        }
 
        ///  
        ///     Freezable collections need to notify their contained Freezables
        ///     about the change in the InheritanceContext 
        /// 
        internal override void OnInheritanceContextChangedCore(EventArgs args)
        {
            base.OnInheritanceContextChangedCore(args); 

            for (int i=0; i.Add does not. This
        // is called by both Adds and IList's just ignores the 
        // integer
        private int AddHelper(Geometry value)
        {
            int index = AddWithoutFiringPublicEvents(value); 

            // AddAtWithoutFiringPublicEvents incremented the version 
 
            WritePostscript();
 
            return index;
        }

        internal int AddWithoutFiringPublicEvents(Geometry value) 
        {
            int index = -1; 
 
            if (value == null)
            { 
                throw new System.ArgumentException(SR.Get(SRID.Collection_NoNull));
            }
            WritePreamble();
            Geometry newValue = value; 
            OnFreezablePropertyChanged(/* oldValue = */ null, newValue);
            index = _collection.Add(newValue); 
            OnInsert(newValue); 

 
            ++_version;

            // No WritePostScript to avoid firing the Changed event.
 
            return index;
        } 
 
        internal event ItemInsertedHandler ItemInserted;
        internal event ItemRemovedHandler ItemRemoved; 

        private void OnInsert(object item)
        {
            if (ItemInserted != null) 
            {
                ItemInserted(this, item); 
            } 
        }
 
        private void OnRemove(object oldValue)
        {
            if (ItemRemoved != null)
            { 
                ItemRemoved(this, oldValue);
            } 
        } 

        private void OnSet(object oldValue, object newValue) 
        {
            OnInsert(newValue);
            OnRemove(oldValue);
        } 

        #endregion Private Helpers 
 
        private static GeometryCollection s_empty;
 

        #region Public Properties

 

        #endregion Public Properties 
 
        //-----------------------------------------------------
        // 
        //  Protected Methods
        //
        //------------------------------------------------------
 
        #region Protected Methods
 
        ///  
        /// Implementation of Freezable.CreateInstanceCore.
        ///  
        /// The new Freezable.
        protected override Freezable CreateInstanceCore()
        {
            return new GeometryCollection(); 
        }
        ///  
        /// Implementation of Freezable.CloneCore() 
        /// 
        protected override void CloneCore(Freezable source) 
        {
            GeometryCollection sourceGeometryCollection = (GeometryCollection) source;

            base.CloneCore(source); 

            int count = sourceGeometryCollection._collection.Count; 
 
            _collection = new FrugalStructList(count);
 
            for (int i = 0; i < count; i++)
            {
                Geometry newValue = (Geometry) sourceGeometryCollection._collection[i].Clone();
                OnFreezablePropertyChanged(/* oldValue = */ null, newValue); 
                _collection.Add(newValue);
                OnInsert(newValue); 
            } 

        } 
        /// 
        /// Implementation of Freezable.CloneCurrentValueCore()
        /// 
        protected override void CloneCurrentValueCore(Freezable source) 
        {
            GeometryCollection sourceGeometryCollection = (GeometryCollection) source; 
 
            base.CloneCurrentValueCore(source);
 
            int count = sourceGeometryCollection._collection.Count;

            _collection = new FrugalStructList(count);
 
            for (int i = 0; i < count; i++)
            { 
                Geometry newValue = (Geometry) sourceGeometryCollection._collection[i].CloneCurrentValue(); 
                OnFreezablePropertyChanged(/* oldValue = */ null, newValue);
                _collection.Add(newValue); 
                OnInsert(newValue);
            }

        } 
        /// 
        /// Implementation of Freezable.GetAsFrozenCore() 
        ///  
        protected override void GetAsFrozenCore(Freezable source)
        { 
            GeometryCollection sourceGeometryCollection = (GeometryCollection) source;

            base.GetAsFrozenCore(source);
 
            int count = sourceGeometryCollection._collection.Count;
 
            _collection = new FrugalStructList(count); 

            for (int i = 0; i < count; i++) 
            {
                Geometry newValue = (Geometry) sourceGeometryCollection._collection[i].GetAsFrozen();
                OnFreezablePropertyChanged(/* oldValue = */ null, newValue);
                _collection.Add(newValue); 
                OnInsert(newValue);
            } 
 
        }
        ///  
        /// Implementation of Freezable.GetCurrentValueAsFrozenCore()
        /// 
        protected override void GetCurrentValueAsFrozenCore(Freezable source)
        { 
            GeometryCollection sourceGeometryCollection = (GeometryCollection) source;
 
            base.GetCurrentValueAsFrozenCore(source); 

            int count = sourceGeometryCollection._collection.Count; 

            _collection = new FrugalStructList(count);

            for (int i = 0; i < count; i++) 
            {
                Geometry newValue = (Geometry) sourceGeometryCollection._collection[i].GetCurrentValueAsFrozen(); 
                OnFreezablePropertyChanged(/* oldValue = */ null, newValue); 
                _collection.Add(newValue);
                OnInsert(newValue); 
            }

        }
        ///  
        /// Implementation of Freezable.FreezeCore.
        ///  
        protected override bool FreezeCore(bool isChecking) 
        {
            bool canFreeze = base.FreezeCore(isChecking); 

            int count = _collection.Count;
            for (int i = 0; i < count && canFreeze; i++)
            { 
                canFreeze &= Freezable.Freeze(_collection[i], isChecking);
            } 
 
            return canFreeze;
        } 

        #endregion ProtectedMethods

        //----------------------------------------------------- 
        //
        //  Internal Methods 
        // 
        //-----------------------------------------------------
 
        #region Internal Methods


 

 
 

 

        #endregion Internal Methods

        //----------------------------------------------------- 
        //
        //  Internal Properties 
        // 
        //------------------------------------------------------
 
        #region Internal Properties


 

 
        #endregion Internal Properties 

        //----------------------------------------------------- 
        //
        //  Dependency Properties
        //
        //------------------------------------------------------ 

        #region Dependency Properties 
 

 
        #endregion Dependency Properties

        //------------------------------------------------------
        // 
        //  Internal Fields
        // 
        //----------------------------------------------------- 

        #region Internal Fields 



 
        internal FrugalStructList _collection;
        internal uint _version = 0; 
 

        #endregion Internal Fields 

        #region Enumerator
        /// 
        /// Enumerates the items in a GeometryCollection 
        /// 
        public struct Enumerator : IEnumerator, IEnumerator 
        { 
            #region Constructor
 
            internal Enumerator(GeometryCollection list)
            {
                Debug.Assert(list != null, "list may not be null.");
 
                _list = list;
                _version = list._version; 
                _index = -1; 
                _current = default(Geometry);
            } 

            #endregion

            #region Methods 

            void IDisposable.Dispose() 
            { 

            } 

            /// 
            /// Advances the enumerator to the next element of the collection.
            ///  
            /// 
            /// true if the enumerator was successfully advanced to the next element, 
            /// false if the enumerator has passed the end of the collection. 
            /// 
            public bool MoveNext() 
            {
                _list.ReadPreamble();

                if (_version == _list._version) 
                {
                    if (_index > -2 && _index < _list._collection.Count - 1) 
                    { 
                        _current = _list._collection[++_index];
                        return true; 
                    }
                    else
                    {
                        _index = -2; // -2 indicates "past the end" 
                        return false;
                    } 
                } 
                else
                { 
                    throw new InvalidOperationException(SR.Get(SRID.Enumerator_CollectionChanged));
                }
            }
 
            /// 
            /// Sets the enumerator to its initial position, which is before the 
            /// first element in the collection. 
            /// 
            public void Reset() 
            {
                _list.ReadPreamble();

                if (_version == _list._version) 
                {
                    _index = -1; 
                } 
                else
                { 
                    throw new InvalidOperationException(SR.Get(SRID.Enumerator_CollectionChanged));
                }
            }
 
            #endregion
 
            #region Properties 

            object IEnumerator.Current 
            {
                get
                {
                    return this.Current; 
                }
            } 
 
            /// 
            /// Current element 
            ///
            /// The behavior of IEnumerable<T>.Current is undefined
            /// before the first MoveNext and after we have walked
            /// off the end of the list. However, the IEnumerable.Current 
            /// contract requires that we throw exceptions
            ///  
            public Geometry Current 
            {
                get 
                {
                    if (_index > -1)
                    {
                        return _current; 
                    }
                    else if (_index == -1) 
                    { 
                        throw new InvalidOperationException(SR.Get(SRID.Enumerator_NotStarted));
                    } 
                    else
                    {
                        Debug.Assert(_index == -2, "expected -2, got " + _index + "\n");
                        throw new InvalidOperationException(SR.Get(SRID.Enumerator_ReachedEnd)); 
                    }
                } 
            } 

            #endregion 

            #region Data
            private Geometry _current;
            private GeometryCollection _list; 
            private uint _version;
            private int _index; 
            #endregion 
        }
        #endregion 
    }
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
                        

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