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Reorganized the directory structure a bit; Created a new transforming collection for exposing the types in a collection under a different interface; moved Operation and associated classes to a new namespace; Implemented the basics of the SetProgression's observation mechanics

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git-svn-id: file:///srv/devel/repo-conversion/nusu@11 d2e56fa2-650e-0410-a79f-9358c0239efd
This commit is contained in:
Markus Ewald 2007-04-18 20:20:03 +00:00
parent f38a0bc1ea
commit cefbc78868
15 changed files with 946 additions and 91 deletions
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27
Nuclex.Support (PC).csproj
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@ -69,6 +69,15 @@
<XNAUseContentPipeline>false</XNAUseContentPipeline>
<Name>ObservableCollection</Name>
</Compile>
<Compile Include="Source\Collections\ObservableCollection.Test.cs">
<XNAUseContentPipeline>false</XNAUseContentPipeline>
<Name>ObservableCollection.Test</Name>
<DependentUpon>ObservableCollection.cs</DependentUpon>
</Compile>
<Compile Include="Source\Collections\TransformingReadOnlyCollection.cs">
<XNAUseContentPipeline>false</XNAUseContentPipeline>
<Name>TransformingReadOnlyCollection</Name>
</Compile>
<Compile Include="Source\Collections\UnintrusivePriorityQueue.cs">
<XNAUseContentPipeline>false</XNAUseContentPipeline>
<Name>UnintrusivePriorityQueue</Name>
@ -127,15 +136,19 @@
<XNAUseContentPipeline>false</XNAUseContentPipeline>
<Name>BinarySerializer</Name>
</Compile>
<Compile Include="Source\Tracking\IAbortable.cs">
<Compile Include="Source\Scheduling\IAbortable.cs">
<XNAUseContentPipeline>false</XNAUseContentPipeline>
<Name>IAbortable</Name>
</Compile>
<Compile Include="Source\Tracking\Internal\ObservedProgression.cs">
<XNAUseContentPipeline>false</XNAUseContentPipeline>
<Name>ObservedProgression</Name>
</Compile>
<Compile Include="Source\Tracking\SetProgression.cs">
<XNAUseContentPipeline>false</XNAUseContentPipeline>
<Name>SetProgression</Name>
</Compile>
<Compile Include="Source\Tracking\Operation.cs">
<Compile Include="Source\Scheduling\Operation.cs">
<XNAUseContentPipeline>false</XNAUseContentPipeline>
<Name>Operation</Name>
</Compile>
@ -143,15 +156,11 @@
<XNAUseContentPipeline>false</XNAUseContentPipeline>
<Name>Progression</Name>
</Compile>
<Compile Include="Source\Tracking\ProgressionCollection.cs">
<XNAUseContentPipeline>false</XNAUseContentPipeline>
<Name>ProgressionCollection</Name>
</Compile>
<Compile Include="Source\Tracking\ProgressUpdateEventArgs.cs">
<XNAUseContentPipeline>false</XNAUseContentPipeline>
<Name>ProgressUpdateEventArgs</Name>
</Compile>
<Compile Include="Source\Tracking\ThreadedMethodOperation.cs">
<Compile Include="Source\Scheduling\ThreadedMethodOperation.cs">
<XNAUseContentPipeline>false</XNAUseContentPipeline>
<Name>ThreadedMethodOperation</Name>
</Compile>
@ -159,9 +168,9 @@
<XNAUseContentPipeline>false</XNAUseContentPipeline>
<Name>WeightedProgression</Name>
</Compile>
<Compile Include="Source\Tracking\WeightedProgressionCollection.cs">
<Compile Include="Source\Tracking\Internal\WeightedProgressionWrapperCollection.cs">
<XNAUseContentPipeline>false</XNAUseContentPipeline>
<Name>WeightedProgressionCollection</Name>
<Name>WeightedProgressionWrapperCollection</Name>
</Compile>
</ItemGroup>
<Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />

105
Source/Collections/ObservableCollection.Test.cs Normal file
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@ -0,0 +1,105 @@
using System;
using System.Collections.Generic;
#if UNITTEST
using NUnit.Framework;
using NMock2;
namespace Nuclex.Support.Collections {
/// <summary>Unit Test for the observable collection class</summary>
[TestFixture]
public class ObservableCollectionTest {
/// <summary>Interface used to test the observable collection.</summary>
public interface IObservableCollectionSubscriber {
/// <summary>Called when the collection is about to clear its contents</summary>
/// <param name="sender">Collection that is clearing its contents</param>
/// <param name="e">Not used</param>
void Clearing(object sender, EventArgs e);
/// <summary>Called when an item is added to the collection</summary>
/// <param name="sender">Collection to which an item is being added</param>
/// <param name="e">Contains the item that is being added</param>
void ItemAdded(object sender, ObservableCollection<int>.ItemEventArgs e);
/// <summary>Called when an item is removed from the collection</summary>
/// <param name="sender">Collection from which an item is being removed</param>
/// <param name="e">Contains the item that is being removed</param>
void ItemRemoved(object sender, ObservableCollection<int>.ItemEventArgs e);
}
/// <summary>Initialization routine executed before each test is run</summary>
[SetUp]
public void Setup() {
this.mockery = new Mockery();
this.mockedSubscriber = this.mockery.NewMock<IObservableCollectionSubscriber>();
this.observedCollection = new ObservableCollection<int>();
this.observedCollection.Clearing += new EventHandler(this.mockedSubscriber.Clearing);
this.observedCollection.ItemAdded +=
new EventHandler<ObservableCollection<int>.ItemEventArgs>(
this.mockedSubscriber.ItemAdded
);
this.observedCollection.ItemRemoved +=
new EventHandler<ObservableCollection<int>.ItemEventArgs>(
this.mockedSubscriber.ItemRemoved
);
}
/// <summary>Tests whether the Clearing event is fired</summary>
[Test]
public void TestClearingEvent() {
Expect.Once.On(this.mockedSubscriber).
Method("Clearing");
this.observedCollection.Clear();
}
/// <summary>Tests whether the ItemAdded event is fired</summary>
[Test]
public void TestItemAddedEvent() {
Expect.Once.On(this.mockedSubscriber).
Method("ItemAdded").
WithAnyArguments();
this.observedCollection.Add(123);
}
/// <summary>Tests whether the ItemRemoved event is fired</summary>
[Test]
public void TestItemRemovedEvent() {
Expect.Once.On(this.mockedSubscriber).
Method("ItemAdded").
WithAnyArguments();
Expect.Once.On(this.mockedSubscriber).
Method("ItemRemoved").
WithAnyArguments();
this.observedCollection.Add(123);
this.observedCollection.Remove(123);
}
/// <summary>Mock object factory</summary>
private Mockery mockery;
/// <summary>The mocked observable collection subscriber</summary>
private IObservableCollectionSubscriber mockedSubscriber;
/// <summary>An observable collection to which a mock will be subscribed</summary>
private ObservableCollection<int> observedCollection;
}
} // namespace Nuclex.Support.Collections
#endif // UNITTEST

15
Source/Collections/ObservableCollection.cs
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@ -30,6 +30,21 @@ namespace Nuclex.Support.Collections {
#endregion // class ItemEventArgs
/// <summary>
/// Initializes a new instance of the ObservableCollection class that is empty.
/// </summary>
public ObservableCollection() : base() { }
/// <summary>
/// Initializes a new instance of the ObservableCollection class as a wrapper
/// for the specified list.
/// </summary>
/// <param name="list">The list that is wrapped by the new collection.</param>
/// <exception cref="System.ArgumentNullException">
/// List is null.
/// </exception>
public ObservableCollection(IList<ItemType> list) : base(list) { }
/// <summary>Raised when an item has been added to the collection</summary>
public event EventHandler<ItemEventArgs> ItemAdded;
/// <summary>Raised when an item is removed from the collection</summary>

10
Source/Collections/PriorityQueue.Test.cs
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@ -11,14 +11,20 @@ namespace Nuclex.Support.Collections {
[TestFixture]
public class PriorityQueueTest {
/// <summary>Comparer for two floating point values</summary>
private class FloatComparer : IComparer<float> {
/// <summary>The default instance of this comparer</summary>
public static readonly FloatComparer Default = new FloatComparer();
/// <summary>Compares two floating points against each other</summary>
/// <param name="left">First float to compare</param>
/// <param name="right">Second float to compare</param>
/// <returns>The relationship of the two floats to each other</returns>
public int Compare(float left, float right) {
return Math.Sign(left - right);
}
public static readonly FloatComparer Default = new FloatComparer();
}
/// <summary>Tests to ensure the count property is properly updated</summary>

2
Source/Collections/RingMemoryStream.Test.cs
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@ -27,7 +27,7 @@ namespace Nuclex.Support.Collections {
}
/// <summary>
/// Ensures that the ring buffer still accepts write attempts what would fill the
/// Ensures that the ring buffer still accepts write attempts that would fill the
/// entire buffer in one go.
/// </summary>
[Test]

664
Source/Collections/TransformingReadOnlyCollection.cs Normal file
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@ -0,0 +1,664 @@
using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Threading;
namespace Nuclex.Support.Collections {
/// <summary>Collection transforming the contents of another collection.</summary>
/// <typeparam name="ContainedItemType">
/// Type of the items contained in the wrapped collection.
/// </typeparam>
/// <typeparam name="ExposedItemType">
/// Type this collection exposes its items as.
/// </typeparam>
public abstract class TransformingReadOnlyCollection<ContainedItemType, ExposedItemType> :
IList<ExposedItemType>, IList {
#region class TransformingEnumerator
/// <summary>
/// An enumerator that transforms the items returned by an enumerator of the
/// wrapped collection into the exposed type on-the-fly.
/// </summary>
private class TransformingEnumerator : IEnumerator<ExposedItemType> {
/// <summary>Initializes a new transforming enumerator</summary>
/// <param name="transformer">Owner; used to invoke the Transform() method</param>
/// <param name="containedTypeEnumerator">Enumerator of the wrapped collection</param>
public TransformingEnumerator(
TransformingReadOnlyCollection<ContainedItemType, ExposedItemType> transformer,
IEnumerator<ContainedItemType> containedTypeEnumerator
) {
this.transformer = transformer;
this.containedTypeEnumerator = containedTypeEnumerator;
}
/// <summary>Immediately releases all resources used by the instance</summary>
public void Dispose() {
this.containedTypeEnumerator.Dispose();
}
/// <summary>
/// The element in the collection at the current position of the enumerator.
/// </summary>
public ExposedItemType Current {
get {
return this.transformer.Transform(this.containedTypeEnumerator.Current);
}
}
/// <summary>Gets the current element in the collection.</summary>
/// <returns>The current element in the collection.</returns>
/// <exception cref="System.InvalidOperationException">
/// The enumerator is positioned before the first element of the collection
/// or after the last element.
/// </exception>
public bool MoveNext() {
return this.containedTypeEnumerator.MoveNext();
}
/// <summary>
/// Sets the enumerator to its initial position, which is before the first element
/// in the collection.
/// </summary>
/// <exception cref="System.InvalidOperationException">
/// The collection was modified after the enumerator was created.
/// </exception>
public void Reset() {
this.containedTypeEnumerator.Reset();
}
/// <summary>The current element in the collection.</summary>
/// <exception cref="System.InvalidOperationException">
/// The enumerator is positioned before the first element of the collection
/// or after the last element.
/// </exception>
object IEnumerator.Current {
get { return Current; }
}
/// <summary>
/// Collection that owns this enumerator; required to invoke the item
/// transformation method.
/// </summary>
private TransformingReadOnlyCollection<ContainedItemType, ExposedItemType> transformer;
/// <summary>An enumerator from the wrapped collection</summary>
private IEnumerator<ContainedItemType> containedTypeEnumerator;
}
#endregion // class TransformingEnumerator
/// <summary>Initializes a new transforming collection wrapper</summary>
/// <param name="items">
/// Internal list of items that are transformed into the exposed type when
/// accessed through the TransformingReadOnlyCollection.
/// </param>
public TransformingReadOnlyCollection(IList<ContainedItemType> items) {
this.items = items;
}
/// <summary>
/// Determines whether an element is in the TransformingReadOnlyCollection
/// </summary>
/// <param name="item">
/// The object to locate in the TransformingReadOnlyCollection.
/// The value can be null for reference types.
/// </param>
/// <returns>
/// True if value is found in the TransformingReadOnlyCollection; otherwise, false.
/// </returns>
/// <remarks>
/// The default implementation of this method is very unoptimized and will
/// enumerate all the items in the collection, transforming one after another
/// to check whether the transformed item matches the item the user was
/// looking for. It is recommended to provide a custom implementation of
/// this method, if possible.
/// </remarks>
public virtual bool Contains(ExposedItemType item) {
return (IndexOf(item) != -1);
}
/// <summary>
/// Copies the entire TransformingReadOnlyCollection to a compatible one-dimensional
/// System.Array, starting at the specified index of the target array.
/// </summary>
/// <param name="array">
/// The one-dimensional System.Array that is the destination of the elements copied
/// from the TransformingReadOnlyCollection. The System.Array must have
/// zero-based indexing.
/// </param>
/// <param name="index">
/// The zero-based index in array at which copying begins.
/// </param>
/// <exception cref="System.ArgumentException">
/// Index is equal to or greater than the length of array or the number of elements
/// in the source TransformingReadOnlyCollection is greater than the available space
/// from index to the end of the destination array.
/// </exception>
/// <exception cref="System.ArgumentOutOfRangeException">
/// Index is less than zero.
/// </exception>
/// <exception cref="System.ArgumentNullException">
/// Array is null.
/// </exception>
public void CopyTo(ExposedItemType[] array, int index) {
if(this.items.Count > (array.Length - index))
throw new ArgumentException(
"Array too small to fit the collection items starting at the specified index"
);
for(int itemIndex = 0; itemIndex < this.items.Count; ++itemIndex)
array[itemIndex + index] = Transform(this.items[itemIndex]);
}
/// <summary>
/// Returns an enumerator that iterates through the TransformingReadOnlyCollection.
/// </summary>
/// <returns>
/// An enumerator or the TransformingReadOnlyCollection.
/// </returns>
public IEnumerator<ExposedItemType> GetEnumerator() {
return new TransformingEnumerator(this, this.items.GetEnumerator());
}
/// <summary>
/// Searches for the specified object and returns the zero-based index of the
/// first occurrence within the entire TransformingReadOnlyCollection.
/// </summary>
/// <param name="item">
/// The object to locate in the TransformingReadOnlyCollection. The value can
/// be null for reference types.
/// </param>
/// <returns>
/// The zero-based index of the first occurrence of item within the entire
/// TransformingReadOnlyCollection, if found; otherwise, -1.
/// </returns>
/// <remarks>
/// The default implementation of this method is very unoptimized and will
/// enumerate all the items in the collection, transforming one after another
/// to check whether the transformed item matches the item the user was
/// looking for. It is recommended to provide a custom implementation of
/// this method, if possible.
/// </remarks>
public int IndexOf(ExposedItemType item) {
if(item == null) {
for(int index = 0; index < this.items.Count; ++index) {
if(Transform(this.items[index]) == null) {
return index;
}
}
} else {
EqualityComparer<ExposedItemType> comparer =
EqualityComparer<ExposedItemType>.Default;
for(int index = 0; index < this.items.Count; ++index) {
if(comparer.Equals(Transform(this.items[index]), item)) {
return index;
}
}
}
return -1;
}
/// <summary>
/// The number of elements contained in the TransformingReadOnlyCollection instance
/// </summary>
public int Count {
get { return this.items.Count; }
}
/// <summary>Gets the element at the specified index.</summary>
/// <param name="index">The zero-based index of the element to get.</param>
/// <returns>The element at the specified index.</returns>
/// <exception cref="System.ArgumentOutOfRangeException">
/// Index is less than zero or index is equal to or greater than
/// TransformingReadOnlyCollection.Count.
/// </exception>
public ExposedItemType this[int index] {
get { return Transform(this.items[index]); }
}
/// <summary>Transforms an item into the exposed type</summary>
/// <param name="item">Item to be transformed</param>
/// <returns>The transformed item</returns>
/// <remarks>
/// This method is used to transform an item in the wrapped collection into
/// the exposed item type whenever the user accesses an item. Expect it to
/// be called frequently, because the TransformingReadOnlyCollection does
/// not cache otherwise store the transformed items.
/// </remarks>
protected abstract ExposedItemType Transform(ContainedItemType item);
/// <summary>
/// Determines whether the object is compatible to the collection's data type.
/// </summary>
/// <param name="value">Object to check for compatibility.</param>
/// <returns>
/// True if the object is compatible to the collection's data type;
/// otherwise false.
/// </returns>
private static bool IsCompatibleObject(object value) {
if(!(value is ExposedItemType)) {
if((value != null) || typeof(ExposedItemType).IsValueType) {
return false;
}
}
return true;
}
#region IList<ExposedItemType> Members
/// <summary>
/// Determines the index of a specific item in the TransformingReadOnlyCollection.
/// </summary>
/// <param name="item">
/// The object to locate in the TransformingReadOnlyCollection.
/// </param>
/// <returns>
/// The index of item if found in the list; otherwise, -1.
/// </returns>
int IList<ExposedItemType>.IndexOf(ExposedItemType item) {
return IndexOf(item);
}
/// <summary>
/// Inserts an item to the TransformingReadOnlyCollection at the specified index.
/// </summary>
/// <param name="index">
/// The zero-based index at which item should be inserted.
/// </param>
/// <param name="item">
/// The object to insert into the TransformingReadOnlyCollection
/// </param>
/// <exception cref="System.NotSupportedException">
/// The TransformingReadOnlyCollection is read-only.
/// </exception>
/// <exception cref="System.ArgumentOutOfRangeException">
/// index is not a valid index in the TransformingReadOnlyCollection.
/// </exception>
void IList<ExposedItemType>.Insert(int index, ExposedItemType item) {
throw new NotSupportedException("The collection is ready-only");
}
/// <summary>
/// Removes the TransformingReadOnlyCollection item at the specified index.
/// </summary>
/// <param name="index">The zero-based index of the item to remove.</param>
/// <exception cref="System.NotSupportedException">
/// The TransformingReadOnlyCollection is read-only.
/// </exception>
/// <exception cref="System.ArgumentOutOfRangeException">
/// Index is not a valid index in the TransformingReadOnlyCollection.
/// </exception>
void IList<ExposedItemType>.RemoveAt(int index) {
throw new NotSupportedException("The collection is ready-only");
}
/// <summary>Gets or sets the element at the specified index.</summary>
/// <param name="index">The zero-based index of the element to get or set.</param>
/// <returns>The element at the specified index.</returns>
/// <exception cref="System.ArgumentOutOfRangeException">
/// Index is not a valid index in the TransformingReadOnlyCollection.
/// </exception>
/// <exception cref="System.NotSupportedException">
/// The property is set and the TransformingReadOnlyCollection is read-only
/// </exception>
ExposedItemType IList<ExposedItemType>.this[int index] {
get {
return this[index];
}
set {
throw new NotSupportedException("The collection is ready-only");
}
}
#endregion
#region ICollection<ExposedItemType> Members
/// <summary>Adds an item to the TransformingReadOnlyCollection.</summary>
/// <param name="item">The object to add to the TransformingReadOnlyCollection</param>
/// <exception cref="System.NotSupportedException">
/// The TransformingReadOnlyCollection is read-only.
/// </exception>
void ICollection<ExposedItemType>.Add(ExposedItemType item) {
throw new NotSupportedException("The collection is ready-only");
}
/// <summary>Removes all items from the TransformingReadOnlyCollection</summary>
/// <exception cref="System.NotSupportedException">
/// The TransformingReadOnlyCollection is read-only.
/// </exception>
void ICollection<ExposedItemType>.Clear() {
throw new NotSupportedException("The collection is ready-only");
}
/// <summary>
/// Determines whether the TransformingReadOnlyCollection contains a specific value.
/// </summary>
/// <param name="item">
/// The object to locate in the TransformingReadOnlyCollection.
/// </param>
/// <returns>
/// True if item is found in the TransformingReadOnlyCollection; otherwise, false.
/// </returns>
bool ICollection<ExposedItemType>.Contains(ExposedItemType item) {
return Contains(item);
}
/// <summary>
/// Copies the elements of the TransformingReadOnlyCollection to an System.Array,
/// starting at a particular System.Array index.
/// </summary>
/// <param name="array">
/// The one-dimensional System.Array that is the destination of the elements
/// copied from TransformingReadOnlyCollection. The System.Array must have
/// zero-based indexing.
/// </param>
/// <param name="arrayIndex">
/// The zero-based index in array at which copying begins
/// </param>
/// <exception cref="System.ArgumentOutOfRangeException">
/// ArrayIndex is less than 0.
/// </exception>
/// <exception cref="System.ArgumentNullException">
/// Array is null.
/// </exception>
/// <exception cref="System.ArgumentException">
/// Array is multidimensional or arrayIndex is equal to or greater than the
/// length of array or the number of elements in the source
/// TransformingReadOnlyCollection is greater than the available
/// space from arrayIndex to the end of the destination array or type T cannot
/// be cast automatically to the type of the destination array.
/// </exception>
void ICollection<ExposedItemType>.CopyTo(ExposedItemType[] array, int arrayIndex) {
CopyTo(array, arrayIndex);
}
/// <summary>
/// Removes the first occurrence of a specific object from the
/// TransformingReadOnlyCollection.
/// </summary>
/// <param name="item">
/// The object to remove from the TransformingReadOnlyCollection
/// </param>
/// <returns>
/// True if item was successfully removed from the TransformingReadOnlyCollection;
/// otherwise, false. This method also returns false if item is not found in the
/// original TransformingReadOnlyCollection.
/// </returns>
/// <exception cref="System.NotSupportedException">
/// The TransformingReadOnlyCollection is read-only.
/// </exception>
bool ICollection<ExposedItemType>.Remove(ExposedItemType item) {
throw new NotSupportedException("The collection is ready-only");
}
/// <summary>
/// The number of elements contained in the TransformingReadOnlyCollection.
/// </summary>
int ICollection<ExposedItemType>.Count {
get { return Count; }
}
/// <summary>
/// A value indicating whether the TransformingReadOnlyCollection is read-only.
/// </summary>
bool ICollection<ExposedItemType>.IsReadOnly {
get { return true; }
}
#endregion
#region IEnumerable<ExposedItemType> Members
/// <summary>Returns an enumerator that iterates through the collection.</summary>
/// <returns>
/// A System.Collections.Generic.IEnumerator&lt;ExposedItemType&gt; that can be used
/// to iterate through the collection.
/// </returns>
IEnumerator<ExposedItemType> IEnumerable<ExposedItemType>.GetEnumerator() {
return GetEnumerator();
}
#endregion
#region IEnumerable Members
/// <summary>Returns an enumerator that iterates through a collection.</summary>
/// <returns>
/// A System.Collections.IEnumerator object that can be used to iterate through
/// the collection.
/// </returns>
IEnumerator IEnumerable.GetEnumerator() {
return GetEnumerator();
}
#endregion
#region IList Members
/// <summary>Adds an item to the TransformingReadOnlyCollection.</summary>
/// <param name="value">
/// The System.Object to add to the TransformingReadOnlyCollection.
/// </param>
/// <returns>The position into which the new element was inserted.</returns>
/// <exception cref="System.NotSupportedException">
/// The System.Collections.IList is read-only or the TransformingReadOnlyCollection
/// has a fixed size.
/// </exception>
int IList.Add(object value) {
throw new NotSupportedException("The collection is ready-only");
}
/// <summary>Removes all items from the TransformingReadOnlyCollection.</summary>
/// <exception cref="System.NotSupportedException">
/// The TransformingReadOnlyCollection is read-only.
/// </exception>
void IList.Clear() {
throw new NotSupportedException("The collection is ready-only");
}
/// <summary>
/// Determines whether the TransformingReadOnlyCollection contains a specific value.
/// </summary>
/// <param name="value">
/// The System.Object to locate in the TransformingReadOnlyCollection.
/// </param>
/// <returns>
/// True if the System.Object is found in the TransformingReadOnlyCollection;
/// otherwise, false.
/// </returns>
bool IList.Contains(object value) {
return Contains((ExposedItemType)value);
}
/// <summary>
/// Determines the index of a specific item in the TransformingReadOnlyCollection.
/// </summary>
/// <param name="value">
/// The System.Object to locate in the TransformingReadOnlyCollection.
/// </param>
/// <returns>
/// The index of value if found in the list; otherwise, -1.
/// </returns>
int IList.IndexOf(object value) {
return IndexOf((ExposedItemType)value);
}
/// <summary>
/// Inserts an item to the TransformingReadOnlyCollection at the specified index.
/// </summary>
/// <param name="index">
/// The zero-based index at which value should be inserted.
/// </param>
/// <param name="value">
/// The System.Object to insert into the TransformingReadOnlyCollection.
/// </param>
/// <exception cref="System.ArgumentOutOfRangeException">
/// Index is not a valid index in the TransformingReadOnlyCollection.
/// </exception>
/// <exception cref="System.NotSupportedException">
/// The System.Collections.IList is read-only or the TransformingReadOnlyCollection
/// has a fixed size.
/// </exception>
/// <exception cref="System.NullReferenceException">
/// Value is null reference in the TransformingReadOnlyCollection.
/// </exception>
void IList.Insert(int index, object value) {
throw new NotSupportedException("The collection is ready-only");
}
/// <summary>
/// A value indicating whether the TransformingReadOnlyCollection has a fixed
/// size.
/// </summary>
bool IList.IsFixedSize {
get { return true; }
}
/// <summary>
/// A value indicating whether the index is not a valid index in the is read-only.
/// </summary>
bool IList.IsReadOnly {
get { return true; }
}
/// <summary>
/// Removes the first occurrence of a specific object from the
/// TransformingReadOnlyCollection.
/// </summary>
/// <param name="value">
/// The System.Object to remove from the TransformingReadOnlyCollection.
/// </param>
/// <exception cref="System.NotSupportedException">
/// The TransformingReadOnlyCollection is read-only or the
/// TransformingReadOnlyCollection has a fixed size.
/// </exception>
void IList.Remove(object value) {
throw new NotSupportedException("The collection is ready-only");
}
/// <summary>
/// Removes the TransformingReadOnlyCollection item at the specified index.
/// </summary>
/// <param name="index">The zero-based index of the item to remove.</param>
/// <exception cref="System.ArgumentOutOfRangeException">
/// Index is not a valid index in the TransformingReadOnlyCollection.
/// </exception>
/// <exception cref="System.NotSupportedException">
/// The TransformingReadOnlyCollection is read-only or the
/// TransformingReadOnlyCollection has a fixed size.
/// </exception>
void IList.RemoveAt(int index) {
throw new NotSupportedException("The collection is ready-only");
}
/// <summary>Gets or sets the element at the specified index.</summary>
/// <param name="index">The zero-based index of the element to get or set.</param>
/// <returns>The element at the specified index</returns>
/// <exception cref="System.ArgumentOutOfRangeException">
/// Index is not a valid index in the TransformingReadOnlyCollection
/// </exception>
/// <exception cref="System.NotSupportedException">
/// The property is set and the TransformingReadOnlyCollection is read-only.
/// </exception>
object IList.this[int index] {
get {
return this[index];
}
set {
throw new NotSupportedException("The collection is ready-only");
}
}
#endregion
#region ICollection Members
/// <summary>
/// Copies the elements of the TransformingReadOnlyCollection to an System.Array,
/// starting at a particular System.Array index.
/// </summary>
/// <param name="array">
/// The one-dimensional System.Array that is the destination of the elements
/// copied from TransformingReadOnlyCollection. The System.Array must have zero-based
/// indexing.
/// </param>
/// <param name="index">The zero-based index in array at which copying begins.</param>
/// <exception cref="System.ArgumentNullException">
/// Array is null.
/// </exception>
/// <exception cref="System.ArgumentOutOfRangeException">
/// Index is less than zero.
/// </exception>
/// <exception cref="System.ArgumentException">
/// Array is multidimensional or index is equal to or greater than the length
/// of array or the number of elements in the source TransformingReadOnlyCollection
/// is greater than the available space from index to the end of the destination
/// array.
/// </exception>
/// <exception cref="System.InvalidCastException">
/// The type of the source TransformingReadOnlyCollection cannot be cast
/// automatically to the type of the destination array.
/// </exception>
void ICollection.CopyTo(Array array, int index) {
CopyTo((ExposedItemType[])array, index);
}
/// <summary>
/// The number of elements contained in the TransformingReadOnlyCollection.
/// </summary>
int ICollection.Count {
get { return Count; }
}
/// <summary>
/// A value indicating whether access to the TransformingReadOnlyCollection
/// is synchronized (thread safe).
/// </summary>
bool ICollection.IsSynchronized {
get { return false; }
}
/// <summary>
/// An object that can be used to synchronize access to the
/// TransformingReadOnlyCollection.
/// </summary>
object ICollection.SyncRoot {
get {
if(this.syncRoot == null) {
ICollection is2 = this.items as ICollection;
if(is2 != null) {
this.syncRoot = is2.SyncRoot;
} else {
Interlocked.CompareExchange(ref this.syncRoot, new object(), null);
}
}
return this.syncRoot;
}
}
#endregion
/// <summary>Items being transformed upon exposure by this collection</summary>
private IList<ContainedItemType> items;
/// <summary>Synchronization root for threaded accesses to this collection</summary>
private object syncRoot;
}
} // namespace Nuclex.Support.Collections

0
Source/Tracking/IAbortable.cs → Source/Scheduling/IAbortable.cs
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0
Source/Tracking/Operation.cs → Source/Scheduling/Operation.cs
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0
Source/Tracking/ThreadedMethodOperation.cs → Source/Scheduling/ThreadedMethodOperation.cs
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41
Source/Tracking/Internal/ObservedProgression.cs Normal file
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@ -0,0 +1,41 @@
using System;
using System.Collections.Generic;
using System.Text;
namespace Nuclex.Support.Tracking {
/// <summary>Progression being observed by another class</summary>
/// <typeparam name="ProgressionType">
/// Type of the progression that is being observed
/// </typeparam>
internal class ObservedProgression<ProgressionType>
where ProgressionType : Progression {
/// <summary>Initializes a new observed progression</summary>
/// <param name="weightedProgression">Weighted progression being observed</param>
internal ObservedProgression(
WeightedProgression<ProgressionType> weightedProgression
) {
this.weightedProgression = weightedProgression;
}
/// <summary>Weighted progression being observed</summary>
public WeightedProgression<ProgressionType> WeightedProgression {
get { return this.weightedProgression; }
}
/*
internal void AsyncProgressUpdated(object sender, ProgressUpdateEventArgs e) {
this.Progress = e.Progress;
}
internal void AsyncEnded(object sender, EventArgs e) { }
*/
/// <summary>The weighted progression that is being observed</summary>
private WeightedProgression<ProgressionType> weightedProgression;
/*
/// <summary>Amount of progress this progression has achieved so far</summary>
private volatile float progress;
*/
}
} // namespace Nuclex.Support.Tracking

60
Source/Tracking/Internal/WeightedProgressionWrapperCollection.cs Normal file
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@ -0,0 +1,60 @@
using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using Nuclex.Support.Collections;
namespace Nuclex.Support.Tracking {
/// <summary>Collection of progressions with a weighting value</summary>
/// <typeparam name="ProgressionType">Type of progressions to manage</typeparam>
/// <remarks>
/// <para>
/// This collection is exposed as a read-only collection to the user that
/// stores WeightedProgressions. Internally, it merely wraps a collection of
/// an internal type used to keep track of the individual progression's
/// progress in the SetProgression and QueueOperation classes.
/// </para>
/// <para>
/// It is read-only because the design requires a progression to only ever
/// finish once. If it was possible eg. to add items after a SetProgression
/// had signalled itself as being finished, it would be moved into an
/// unfinished state again. Also, an empty SetProgression is, by definition,
/// finished (simply because there is no work to do) - unless the contents
/// of set are passed to the SetProgression's constructor and never modified
/// at all, the design would be violated as soon as ab instance of the
/// SetProgression or QueueOperation classes was created.
/// </para>
/// </remarks>
internal class WeightedProgressionCollection<ProgressionType> :
TransformingReadOnlyCollection<
ObservedProgression<ProgressionType>, WeightedProgression<ProgressionType>
>
where ProgressionType : Progression {
/// <summary>Initializes a new weighted progression collection wrapper</summary>
/// <param name="items">Items to be exposed as weighted progressions</param>
internal WeightedProgressionCollection(
IList<ObservedProgression<ProgressionType>> items
)
: base(items) { }
/// <summary>Transforms an item into the exposed type</summary>
/// <param name="item">Item to be transformed</param>
/// <returns>The transformed item</returns>
/// <remarks>
/// This method is used to transform an item in the wrapped collection into
/// the exposed item type whenever the user accesses an item. Expect it to
/// be called frequently, because the TransformingReadOnlyCollection does
/// not cache otherwise store the transformed items.
/// </remarks>
protected override WeightedProgression<ProgressionType> Transform(
ObservedProgression<ProgressionType> item
) {
return item.WeightedProgression;
}
}
} // namespace Nuclex.Support.Tracking

16
Source/Tracking/ProgressionCollection.cs
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@ -1,16 +0,0 @@
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using Nuclex.Support.Collections;
namespace Nuclex.Support.Tracking {
/// <summary>Non-generic version of the progression collection</summary>
public class ProgressionCollection : ProgressionCollection<Progression> { }
/// <summary>Generic collection of progressions</summary>
public class ProgressionCollection<ProgressionType>
: ObservableCollection<Progression> where ProgressionType : Progression { }
} // namespace Nuclex.Support.Tracking

27
Source/Tracking/SetProgression.cs
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@ -1,5 +1,6 @@
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using Nuclex.Support.Collections;
@ -10,15 +11,31 @@ namespace Nuclex.Support.Tracking {
public class SetProgression<ProgressionType> : Progression
where ProgressionType : Progression {
/// <summary>Initializes a new set progression</summary>
/// <param name="progressions">Progressions to track with this set</param>
/// <remarks>
/// Uses a default weighting factor of 1.0 for all progressions.
/// </remarks>
public SetProgression(IEnumerable<ProgressionType> progressions) {
}
// TODO
/// <summary>Initializes a new set progression</summary>
/// <param name="progressions">Progressions to track with this set</param>
public SetProgression(IEnumerable<WeightedProgression<ProgressionType>> progressions) {
}
/// <summary>Childs contained in the progression set</summary>
public ReadOnlyCollection<WeightedProgression<ProgressionType>> Childs {
get { return null; }
}
/*
public class SetOperation<OperationType> : Operation
where OperationType : OperationType
QueueOperation
/// <summary>Progressions being managed in the set</summary>
private ReadOnlyCollection<ProgressionType> progressions;
/// <summary>whether the progress needs to be recalculated</summary>
private volatile bool needProgressRecalculation;
/// <summary>Total progress achieved by the progressions in this collection</summary>
private volatile float totalProgress;
*/
}
} // namespace Nuclex.Support.Tracking

51
Source/Tracking/WeightedProgression.cs
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@ -5,36 +5,20 @@ using System.Text;
namespace Nuclex.Support.Tracking {
/// <summary>Progression with an associated weight for the total progress</summary>
internal class WeightedProgression<ProgressionType> : IDisposable
where ProgressionType : Progression {
public class WeightedProgression<ProgressionType> where ProgressionType : Progression {
/// <summary>
/// Initializes a new weighted progression with a default weight of 1.0
/// </summary>
/// <param name="progression">Progression whose progress to monitor</param>
public WeightedProgression(ProgressionType progression) : this(progression, 1.0f) { }
/// <summary>Initializes a new weighted progression</summary>
/// <param name="callback">Callback to pass progress updates on to</param>
/// <param name="progression">Progression whose progress to monitor</param>
/// <param name="weight">Weighting of the progression's progress</param>
public WeightedProgression(
ProgressionType progression,
EventHandler<ProgressUpdateEventArgs> callback,
float weight
) {
public WeightedProgression(ProgressionType progression, float weight) {
this.progression = progression;
this.weight = weight;
this.callback = callback;
progression.AsyncProgressUpdated += new EventHandler<ProgressUpdateEventArgs>(
asyncProgressUpdated
);
}
/// <summary>Disposes of the resources used by this instance immediately</summary>
public void Dispose() {
if(this.progression != null) {
progression.AsyncProgressUpdated -= new EventHandler<ProgressUpdateEventArgs>(
asyncProgressUpdated
);
this.progression = null;
}
}
/// <summary>Progression being wrapped by this weighted progression</summary>
@ -42,30 +26,13 @@ namespace Nuclex.Support.Tracking {
get { return this.progression; }
}
/// <summary>Progress this progression has achieved so far</summary>
public float Progress {
get { return this.progress; }
}
/// <summary>The weighting of this progression in the total progress</summary>
/// <summary>The contribution of this progression to the total progress</summary>
public float Weight {
get { return this.weight; }
}
/// <summary>Handles progress reports by the progression</summary>
/// <param name="sender">Progression that has made progress</param>
/// <param name="e">Contains the currently achieved progress</param>
private void asyncProgressUpdated(object sender, ProgressUpdateEventArgs e) {
this.progress = e.Progress;
this.callback(sender, e);
}
/// <summary>Progression whose progress we're tracking</summary>
private ProgressionType progression;
/// <summary>Callback to which any progress reports will be passed on</summary>
private EventHandler<ProgressUpdateEventArgs> callback;
/// <summary>Most recent progress reported by the progression</summary>
private volatile float progress;
/// <summary>Weighting of this progression in the total progress</summary>
private float weight;

13
Source/Tracking/WeightedProgressionCollection.cs
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@ -1,13 +0,0 @@
using System;
using System.Collections.Generic;
using System.Text;
using Nuclex.Support.Collections;
namespace Nuclex.Support.Tracking {
internal class WeightedProgressionCollection<ProgressionType>
: ObservableCollection<WeightedProgression<ProgressionType>>
where ProgressionType : Progression { }
} // namespace Nuclex.Support.Tracking