Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / wpf / src / Core / CSharp / System / Windows / Input / Command / KeyGestureConverter.cs / 1 / KeyGestureConverter.cs
//---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // // Description: KeyGestureConverter - Converts a KeyGesture string // to the *Type* that the string represents // // // History: // 05/01/2004 : Chandrasekhar Rentachintala - Created // //--------------------------------------------------------------------------- using System; using System.ComponentModel; // for TypeConverter using System.Globalization; // for CultureInfo using System.Reflection; using MS.Internal; using System.Windows; using System.Windows.Input; using MS.Utility; namespace System.Windows.Input { ////// KeyGesture - Converter class for converting between a string and the Type of a KeyGesture /// public class KeyGestureConverter : TypeConverter { private const char MODIFIERS_DELIMITER = '+' ; internal const char DISPLAYSTRING_SEPARATOR = ',' ; //////CanConvertFrom() /// ///ITypeDescriptorContext ///type to convert from ///true if the given type can be converted, false otherwise public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType) { // We can only handle string. if (sourceType == typeof(string)) { return true; } else { return false; } } //////TypeConverter method override. /// ///ITypeDescriptorContext ///Type to convert to ///true if conversion is possible public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType) { // We can convert to an InstanceDescriptor or to a string. if (destinationType == typeof(string)) { // When invoked by the serialization engine we can convert to string only for known type if (context != null && context.Instance != null) { KeyGesture keyGesture = context.Instance as KeyGesture; if (keyGesture != null) { return (ModifierKeysConverter.IsDefinedModifierKeys(keyGesture.Modifiers) && IsDefinedKey(keyGesture.Key)); } } } return false; } ////// ConvertFrom() /// /// /// /// ///public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object source) { if (source != null && source is string) { string fullName = ((string)source).Trim(); if (fullName == String.Empty) return new KeyGesture(Key.None); string keyToken; string modifiersToken; string displayString; // break apart display string int index = fullName.IndexOf(DISPLAYSTRING_SEPARATOR); if (index >= 0) { displayString = fullName.Substring(index + 1).Trim(); fullName = fullName.Substring(0, index).Trim(); } else { displayString = String.Empty; } // break apart key and modifiers index = fullName.LastIndexOf(MODIFIERS_DELIMITER); if (index >= 0) { // modifiers exists modifiersToken = fullName.Substring(0, index); keyToken = fullName.Substring(index + 1); } else { modifiersToken = String.Empty; keyToken = fullName; } ModifierKeys modifiers = ModifierKeys.None; object resultkey = keyConverter.ConvertFrom(context, culture, keyToken); if (resultkey != null) { object temp = modifierKeysConverter.ConvertFrom(context, culture, modifiersToken); if (temp != null) { modifiers = (ModifierKeys)temp; } return new KeyGesture((Key)resultkey, modifiers, displayString); } } throw GetConvertFromException(source); } /// /// ConvertTo() /// /// /// /// /// ///public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) { if (destinationType == null) throw new ArgumentNullException("destinationType"); if (destinationType == typeof(string)) { if (value != null) { KeyGesture keyGesture = value as KeyGesture; if (keyGesture != null) { if (keyGesture.Key == Key.None) return String.Empty; string strBinding = "" ; string strKey = (string)keyConverter.ConvertTo(context, culture, keyGesture.Key, destinationType) as string; if (strKey != String.Empty) { strBinding += modifierKeysConverter.ConvertTo(context, culture, keyGesture.Modifiers, destinationType) as string; if (strBinding != String.Empty) { strBinding += MODIFIERS_DELIMITER; } strBinding += strKey; if (!String.IsNullOrEmpty(keyGesture.DisplayString)) { strBinding += DISPLAYSTRING_SEPARATOR + keyGesture.DisplayString; } } return strBinding; } } else { return String.Empty; } } throw GetConvertToException(value,destinationType); } // Check for Valid enum, as any int can be casted to the enum. internal static bool IsDefinedKey(Key key) { return (key >= Key.None && key <= Key.OemClear); } private static KeyConverter keyConverter = new KeyConverter(); private static ModifierKeysConverter modifierKeysConverter = new ModifierKeysConverter(); } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //---------------------------------------------------------------------------- // // // Copyright (C) Microsoft Corporation. All rights reserved. // // // // Description: KeyGestureConverter - Converts a KeyGesture string // to the *Type* that the string represents // // // History: // 05/01/2004 : Chandrasekhar Rentachintala - Created // //--------------------------------------------------------------------------- using System; using System.ComponentModel; // for TypeConverter using System.Globalization; // for CultureInfo using System.Reflection; using MS.Internal; using System.Windows; using System.Windows.Input; using MS.Utility; namespace System.Windows.Input { ////// KeyGesture - Converter class for converting between a string and the Type of a KeyGesture /// public class KeyGestureConverter : TypeConverter { private const char MODIFIERS_DELIMITER = '+' ; internal const char DISPLAYSTRING_SEPARATOR = ',' ; //////CanConvertFrom() /// ///ITypeDescriptorContext ///type to convert from ///true if the given type can be converted, false otherwise public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType) { // We can only handle string. if (sourceType == typeof(string)) { return true; } else { return false; } } //////TypeConverter method override. /// ///ITypeDescriptorContext ///Type to convert to ///true if conversion is possible public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType) { // We can convert to an InstanceDescriptor or to a string. if (destinationType == typeof(string)) { // When invoked by the serialization engine we can convert to string only for known type if (context != null && context.Instance != null) { KeyGesture keyGesture = context.Instance as KeyGesture; if (keyGesture != null) { return (ModifierKeysConverter.IsDefinedModifierKeys(keyGesture.Modifiers) && IsDefinedKey(keyGesture.Key)); } } } return false; } ////// ConvertFrom() /// /// /// /// ///public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object source) { if (source != null && source is string) { string fullName = ((string)source).Trim(); if (fullName == String.Empty) return new KeyGesture(Key.None); string keyToken; string modifiersToken; string displayString; // break apart display string int index = fullName.IndexOf(DISPLAYSTRING_SEPARATOR); if (index >= 0) { displayString = fullName.Substring(index + 1).Trim(); fullName = fullName.Substring(0, index).Trim(); } else { displayString = String.Empty; } // break apart key and modifiers index = fullName.LastIndexOf(MODIFIERS_DELIMITER); if (index >= 0) { // modifiers exists modifiersToken = fullName.Substring(0, index); keyToken = fullName.Substring(index + 1); } else { modifiersToken = String.Empty; keyToken = fullName; } ModifierKeys modifiers = ModifierKeys.None; object resultkey = keyConverter.ConvertFrom(context, culture, keyToken); if (resultkey != null) { object temp = modifierKeysConverter.ConvertFrom(context, culture, modifiersToken); if (temp != null) { modifiers = (ModifierKeys)temp; } return new KeyGesture((Key)resultkey, modifiers, displayString); } } throw GetConvertFromException(source); } /// /// ConvertTo() /// /// /// /// /// ///public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) { if (destinationType == null) throw new ArgumentNullException("destinationType"); if (destinationType == typeof(string)) { if (value != null) { KeyGesture keyGesture = value as KeyGesture; if (keyGesture != null) { if (keyGesture.Key == Key.None) return String.Empty; string strBinding = "" ; string strKey = (string)keyConverter.ConvertTo(context, culture, keyGesture.Key, destinationType) as string; if (strKey != String.Empty) { strBinding += modifierKeysConverter.ConvertTo(context, culture, keyGesture.Modifiers, destinationType) as string; if (strBinding != String.Empty) { strBinding += MODIFIERS_DELIMITER; } strBinding += strKey; if (!String.IsNullOrEmpty(keyGesture.DisplayString)) { strBinding += DISPLAYSTRING_SEPARATOR + keyGesture.DisplayString; } } return strBinding; } } else { return String.Empty; } } throw GetConvertToException(value,destinationType); } // Check for Valid enum, as any int can be casted to the enum. internal static bool IsDefinedKey(Key key) { return (key >= Key.None && key <= Key.OemClear); } private static KeyConverter keyConverter = new KeyConverter(); private static ModifierKeysConverter modifierKeysConverter = new ModifierKeysConverter(); } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- PiiTraceSource.cs
- ViewGenResults.cs
- ChildrenQuery.cs
- BitmapEffectInput.cs
- FixedDocumentSequencePaginator.cs
- _CommandStream.cs
- GeneralTransform3DCollection.cs
- XPathConvert.cs
- wpf-etw.cs
- ImageIndexConverter.cs
- InOutArgumentConverter.cs
- LabelAutomationPeer.cs
- Html32TextWriter.cs
- CompositeDispatchFormatter.cs
- ExpandedProjectionNode.cs
- Polyline.cs
- FileUtil.cs
- ImportCatalogPart.cs
- SafeEventLogWriteHandle.cs
- StringBuilder.cs
- ReachNamespaceInfo.cs
- TreeViewHitTestInfo.cs
- RectangleHotSpot.cs
- FormatterServices.cs
- EntityCommand.cs
- GridToolTip.cs
- HttpListenerTimeoutManager.cs
- CheckBoxPopupAdapter.cs
- WindowsListBox.cs
- HttpModuleCollection.cs
- TrackingAnnotationCollection.cs
- Attributes.cs
- Helper.cs
- mansign.cs
- CmsInterop.cs
- ObjectReferenceStack.cs
- DirectoryRootQuery.cs
- HtmlObjectListAdapter.cs
- ExpressionWriter.cs
- TaskCanceledException.cs
- BaseParagraph.cs
- NodeFunctions.cs
- MaskedTextBoxTextEditorDropDown.cs
- BufferedWebEventProvider.cs
- XmlConverter.cs
- TdsParserSessionPool.cs
- XmlAnyElementAttributes.cs
- MonthCalendar.cs
- RoutedEventHandlerInfo.cs
- XmlSerializationWriter.cs
- UpdatePanelTrigger.cs
- BitmapImage.cs
- HtmlElementEventArgs.cs
- StaticResourceExtension.cs
- TraceContextRecord.cs
- VisualSerializer.cs
- DateTime.cs
- Figure.cs
- SqlTriggerContext.cs
- TablePattern.cs
- InkCollectionBehavior.cs
- VectorCollection.cs
- DataExpression.cs
- SqlUserDefinedAggregateAttribute.cs
- FixedNode.cs
- PageParserFilter.cs
- RC2CryptoServiceProvider.cs
- ToggleProviderWrapper.cs
- PrePostDescendentsWalker.cs
- BoolExpression.cs
- CreateParams.cs
- PrintPreviewGraphics.cs
- CaseCqlBlock.cs
- WebControlAdapter.cs
- httpserverutility.cs
- ScriptReferenceEventArgs.cs
- MDIControlStrip.cs
- DependencyPropertyValueSerializer.cs
- AspCompat.cs
- TemplateXamlParser.cs
- OutputCacheProfileCollection.cs
- OutKeywords.cs
- LocalBuilder.cs
- AddInEnvironment.cs
- AuthenticationModulesSection.cs
- ToolboxComponentsCreatedEventArgs.cs
- EdmPropertyAttribute.cs
- SecurityCriticalDataForSet.cs
- HtmlInputHidden.cs
- System.Data.OracleClient_BID.cs
- AddingNewEventArgs.cs
- XmlSchemaAnyAttribute.cs
- HeaderFilter.cs
- UrlPath.cs
- ExpressionVisitorHelpers.cs
- LayoutInformation.cs
- PerfService.cs
- ChangePassword.cs
- WebAdminConfigurationHelper.cs
- Attribute.cs