brianlagunas_cp
15 years ago
8 changed files with 477 additions and 8 deletions
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using System; |
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using System.Collections.Generic; |
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using System.Text; |
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using System.Windows; |
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using System.Windows.Controls; |
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using System.Windows.Controls.Primitives; |
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using System.Collections; |
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using System.Reflection; |
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using System.Windows.Input; |
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namespace Microsoft.Windows.Controls |
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{ |
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public class PrimitiveTypeCollectionEditor : ContentControl |
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{ |
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#region Members
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TextBox _textBox; |
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Thumb _resizeThumb; |
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bool _surpressTextChanged; |
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bool _conversionFailed; |
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#endregion //Members
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#region Properties
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#region IsOpen
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public static readonly DependencyProperty IsOpenProperty = DependencyProperty.Register("IsOpen", typeof(bool), typeof(PrimitiveTypeCollectionEditor), new UIPropertyMetadata(false, OnIsOpenChanged)); |
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public bool IsOpen |
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{ |
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get { return (bool)GetValue(IsOpenProperty); } |
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set { SetValue(IsOpenProperty, value); } |
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} |
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private static void OnIsOpenChanged(DependencyObject o, DependencyPropertyChangedEventArgs e) |
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{ |
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PrimitiveTypeCollectionEditor primitiveTypeCollectionEditor = o as PrimitiveTypeCollectionEditor; |
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if (primitiveTypeCollectionEditor != null) |
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primitiveTypeCollectionEditor.OnIsOpenChanged((bool)e.OldValue, (bool)e.NewValue); |
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} |
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protected virtual void OnIsOpenChanged(bool oldValue, bool newValue) |
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{ |
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} |
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#endregion //IsOpen
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#region ItemsSource
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public static readonly DependencyProperty ItemsSourceProperty = DependencyProperty.Register("ItemsSource", typeof(IList), typeof(PrimitiveTypeCollectionEditor), new UIPropertyMetadata(null, OnItemsSourceChanged)); |
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public IList ItemsSource |
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{ |
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get { return (IList)GetValue(ItemsSourceProperty); } |
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set { SetValue(ItemsSourceProperty, value); } |
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} |
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private static void OnItemsSourceChanged(DependencyObject o, DependencyPropertyChangedEventArgs e) |
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{ |
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PrimitiveTypeCollectionEditor primitiveTypeCollectionEditor = o as PrimitiveTypeCollectionEditor; |
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if (primitiveTypeCollectionEditor != null) |
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primitiveTypeCollectionEditor.OnItemsSourceChanged((IList)e.OldValue, (IList)e.NewValue); |
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} |
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protected virtual void OnItemsSourceChanged(IList oldValue, IList newValue) |
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{ |
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if (newValue == null) |
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return; |
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if (ItemsSourceType == null) |
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ItemsSourceType = newValue.GetType(); |
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if (ItemType == null) |
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ItemType = newValue.GetType().GetGenericArguments()[0]; |
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if (newValue.Count > 0) |
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SetText(newValue); |
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} |
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#endregion //ItemsSource
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public static readonly DependencyProperty ItemsSourceTypeProperty = DependencyProperty.Register("ItemsSourceType", typeof(Type), typeof(PrimitiveTypeCollectionEditor), new UIPropertyMetadata(null)); |
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public Type ItemsSourceType |
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{ |
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get { return (Type)GetValue(ItemsSourceTypeProperty); } |
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set { SetValue(ItemsSourceTypeProperty, value); } |
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} |
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public static readonly DependencyProperty ItemTypeProperty = DependencyProperty.Register("ItemType", typeof(Type), typeof(PrimitiveTypeCollectionEditor), new UIPropertyMetadata(null)); |
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public Type ItemType |
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{ |
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get { return (Type)GetValue(ItemTypeProperty); } |
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set { SetValue(ItemTypeProperty, value); } |
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} |
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#region Text
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public static readonly DependencyProperty TextProperty = DependencyProperty.Register("Text", typeof(string), typeof(PrimitiveTypeCollectionEditor), new UIPropertyMetadata(null, OnTextChanged)); |
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public string Text |
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{ |
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get { return (string)GetValue(TextProperty); } |
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set { SetValue(TextProperty, value); } |
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} |
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private static void OnTextChanged(DependencyObject o, DependencyPropertyChangedEventArgs e) |
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{ |
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PrimitiveTypeCollectionEditor primitiveTypeCollectionEditor = o as PrimitiveTypeCollectionEditor; |
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if (primitiveTypeCollectionEditor != null) |
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primitiveTypeCollectionEditor.OnTextChanged((string)e.OldValue, (string)e.NewValue); |
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} |
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protected virtual void OnTextChanged(string oldValue, string newValue) |
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{ |
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if (!_surpressTextChanged) |
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PersistChanges(); |
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} |
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#endregion //Text
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#endregion //Properties
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#region Constructors
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static PrimitiveTypeCollectionEditor() |
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{ |
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DefaultStyleKeyProperty.OverrideMetadata(typeof(PrimitiveTypeCollectionEditor), new FrameworkPropertyMetadata(typeof(PrimitiveTypeCollectionEditor))); |
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} |
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public PrimitiveTypeCollectionEditor() |
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{ |
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Keyboard.AddKeyDownHandler(this, OnKeyDown); |
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Mouse.AddPreviewMouseDownOutsideCapturedElementHandler(this, OnMouseDownOutsideCapturedElement); |
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} |
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#endregion //Constructors
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#region Bass Class Overrides
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public override void OnApplyTemplate() |
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{ |
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base.OnApplyTemplate(); |
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_textBox = (TextBox)GetTemplateChild("PART_TextBox"); |
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if (_resizeThumb != null) |
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_resizeThumb.DragDelta -= ResizeThumb_DragDelta; |
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_resizeThumb = (Thumb)GetTemplateChild("PART_ResizeThumb"); |
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if (_resizeThumb != null) |
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_resizeThumb.DragDelta += ResizeThumb_DragDelta; |
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} |
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void ResizeThumb_DragDelta(object sender, DragDeltaEventArgs e) |
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{ |
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double yadjust = this._textBox.Height + e.VerticalChange; |
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double xadjust = this._textBox.Width + e.HorizontalChange; |
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if ((xadjust >= 0) && (yadjust >= 0)) |
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{ |
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this._textBox.Width = xadjust; |
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this._textBox.Height = yadjust; |
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} |
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} |
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#endregion //Bass Class Overrides
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#region Event Handlers
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private void OnKeyDown(object sender, KeyEventArgs e) |
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{ |
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switch (e.Key) |
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{ |
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case Key.Escape: |
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case Key.Tab: |
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{ |
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CloseEditor(); |
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break; |
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} |
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} |
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} |
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private void OnMouseDownOutsideCapturedElement(object sender, MouseButtonEventArgs e) |
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{ |
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CloseEditor(); |
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} |
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#endregion //Event Handlers
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#region Methods
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private void CloseEditor() |
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{ |
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if (IsOpen) |
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IsOpen = false; |
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ReleaseMouseCapture(); |
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} |
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private void PersistChanges() |
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{ |
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IList list = ResolveItemsSource(); |
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if (list == null) |
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return; |
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//the easiest way to persist changes to the source is to just clear the source list and then add all items to it.
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list.Clear(); |
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IList items = ResolveItems(); |
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foreach (var item in items) |
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{ |
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list.Add(item); |
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}; |
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// if something went wrong during conversion we want to reload the text to show only valid entries
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if (_conversionFailed) |
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SetText(list); |
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} |
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private IList ResolveItems() |
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{ |
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IList items = new List<object>(); |
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if (ItemType == null) |
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return items; |
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string[] textArray = Text.Split('\n'); |
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foreach (string s in textArray) |
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{ |
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string valueString = s.TrimEnd('\r'); |
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if (!String.IsNullOrEmpty(valueString)) |
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{ |
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object value = null; |
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try |
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{ |
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value = Convert.ChangeType(valueString, ItemType); |
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} |
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catch |
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{ |
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//a conversion failed
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_conversionFailed = true; |
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} |
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if (value != null) |
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items.Add(value); |
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} |
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} |
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return items; |
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} |
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private IList ResolveItemsSource() |
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{ |
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if (ItemsSource == null) |
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ItemsSource = CreateItemsSource(); |
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return ItemsSource; |
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} |
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private IList CreateItemsSource() |
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{ |
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IList list = null; |
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if (ItemsSourceType != null) |
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{ |
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ConstructorInfo constructor = ItemsSourceType.GetConstructor(Type.EmptyTypes); |
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list = (IList)constructor.Invoke(null); |
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} |
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return list; |
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} |
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private void SetText(IEnumerable collection) |
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{ |
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_surpressTextChanged = true; |
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StringBuilder builder = new StringBuilder(); |
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foreach (object obj2 in collection) |
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{ |
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builder.Append(obj2.ToString()); |
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builder.AppendLine(); |
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} |
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Text = builder.ToString().Trim(); |
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_surpressTextChanged = false; |
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} |
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#endregion //Methods
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} |
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} |
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@ -0,0 +1,24 @@ |
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using System; |
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namespace Microsoft.Windows.Controls.PropertyGrid.Editors |
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{ |
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public class PrimitiveTypeCollectionEditor : TypeEditor<Microsoft.Windows.Controls.PrimitiveTypeCollectionEditor> |
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{ |
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protected override void SetControlProperties() |
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{ |
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Editor.Content = "(Collection)"; |
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} |
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protected override void SetValueDependencyProperty() |
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{ |
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ValueProperty = Microsoft.Windows.Controls.PrimitiveTypeCollectionEditor.ItemsSourceProperty; |
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} |
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public override void Attach(PropertyItem propertyItem) |
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{ |
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Editor.ItemsSourceType = propertyItem.PropertyType; |
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Editor.ItemType = propertyItem.PropertyType.GetGenericArguments()[0]; |
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base.Attach(propertyItem); |
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} |
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} |
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} |
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