Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / wpf / src / Base / System / Windows / Input / ModifierKeysConverter.cs / 1 / ModifierKeysConverter.cs
//---------------------------------------------------------------------------- // // File: ModifierKeysConverter.cs // // Description: // // ModifierKeysConverter : Converts a Modifier string to the *Type* that the string represents and vice-versa. // // Features: // // History: // 05/28/2003 created: Chandrasekhar Rentachintala // // Copyright (C) 2003 by Microsoft Corporation. All rights reserved. // //--------------------------------------------------------------------------- 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 System.Windows.Markup; using MS.Utility; namespace System.Windows.Input { ////// Key Converter class for converting between a string and the Type of a Modifiers /// ///public class ModifierKeysConverter : TypeConverter { /// /// CanConvertFrom() /// /// /// ////// 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 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 && context.Instance is ModifierKeys) { return (IsDefinedModifierKeys((ModifierKeys)context.Instance)); } } return false; } ////// ConvertFrom() /// /// /// /// ////// public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object source) { if (source is string) { string modifiersToken = ((string)source).Trim(); ModifierKeys modifiers = GetModifierKeys(modifiersToken, CultureInfo.InvariantCulture); return modifiers; } 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)) { ModifierKeys modifiers = (ModifierKeys)value; if (!IsDefinedModifierKeys(modifiers)) throw new InvalidEnumArgumentException("modifiers", (int)modifiers, typeof(ModifierKeys)); else { string strModifiers = ""; if ((modifiers & ModifierKeys.Control) == ModifierKeys.Control) { strModifiers += MatchModifiers(ModifierKeys.Control); } if ((modifiers & ModifierKeys.Alt) == ModifierKeys.Alt) { if (strModifiers.Length > 0) strModifiers += Modifier_Delimiter; strModifiers += MatchModifiers(ModifierKeys.Alt); } if ((modifiers & ModifierKeys.Windows) == ModifierKeys.Windows) { if (strModifiers.Length > 0) strModifiers += Modifier_Delimiter; strModifiers += MatchModifiers(ModifierKeys.Windows); ; } if ((modifiers & ModifierKeys.Shift) == ModifierKeys.Shift) { if (strModifiers.Length > 0) strModifiers += Modifier_Delimiter; strModifiers += MatchModifiers(ModifierKeys.Shift); ; } return strModifiers; } } throw GetConvertToException(value,destinationType); } private ModifierKeys GetModifierKeys(string modifiersToken, CultureInfo culture) { ModifierKeys modifiers = ModifierKeys.None; if (modifiersToken.Length != 0) { int offset = 0; do { offset = modifiersToken.IndexOf(Modifier_Delimiter); string token = (offset < 0) ? modifiersToken : modifiersToken.Substring(0, offset); token = token.Trim(); token = token.ToUpper(culture); if (token == String.Empty) break; switch (token) { case "CONTROL" : case "CTRL" : modifiers |= ModifierKeys.Control; break; case "SHIFT" : modifiers |= ModifierKeys.Shift; break; case "ALT": modifiers |= ModifierKeys.Alt; break; case "WINDOWS": case "WIN": modifiers |= ModifierKeys.Windows; break; default: throw new NotSupportedException(SR.Get(SRID.Unsupported_Modifier, token)); } modifiersToken = modifiersToken.Substring(offset + 1); } while (offset != -1); } return modifiers; } /// /// Check for Valid enum, as any int can be casted to the enum. /// public static bool IsDefinedModifierKeys(ModifierKeys modifierKeys) { return (modifierKeys == ModifierKeys.None || (((int)modifierKeys & ~((int)ModifierKeysFlag)) == 0)); } private const char Modifier_Delimiter = '+'; private static ModifierKeys ModifierKeysFlag = ModifierKeys.Windows | ModifierKeys.Shift | ModifierKeys.Alt | ModifierKeys.Control ; internal static string MatchModifiers(ModifierKeys modifierKeys) { string modifiers = String.Empty; switch (modifierKeys) { case ModifierKeys.Control: modifiers="Ctrl";break; case ModifierKeys.Shift : modifiers="Shift";break; case ModifierKeys.Alt : modifiers="Alt";break; case ModifierKeys.Windows: modifiers="Windows";break; } return modifiers; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //---------------------------------------------------------------------------- // // File: ModifierKeysConverter.cs // // Description: // // ModifierKeysConverter : Converts a Modifier string to the *Type* that the string represents and vice-versa. // // Features: // // History: // 05/28/2003 created: Chandrasekhar Rentachintala // // Copyright (C) 2003 by Microsoft Corporation. All rights reserved. // //--------------------------------------------------------------------------- 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 System.Windows.Markup; using MS.Utility; namespace System.Windows.Input { ////// Key Converter class for converting between a string and the Type of a Modifiers /// ///public class ModifierKeysConverter : TypeConverter { /// /// CanConvertFrom() /// /// /// ////// 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 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 && context.Instance is ModifierKeys) { return (IsDefinedModifierKeys((ModifierKeys)context.Instance)); } } return false; } ////// ConvertFrom() /// /// /// /// ////// public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object source) { if (source is string) { string modifiersToken = ((string)source).Trim(); ModifierKeys modifiers = GetModifierKeys(modifiersToken, CultureInfo.InvariantCulture); return modifiers; } 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)) { ModifierKeys modifiers = (ModifierKeys)value; if (!IsDefinedModifierKeys(modifiers)) throw new InvalidEnumArgumentException("modifiers", (int)modifiers, typeof(ModifierKeys)); else { string strModifiers = ""; if ((modifiers & ModifierKeys.Control) == ModifierKeys.Control) { strModifiers += MatchModifiers(ModifierKeys.Control); } if ((modifiers & ModifierKeys.Alt) == ModifierKeys.Alt) { if (strModifiers.Length > 0) strModifiers += Modifier_Delimiter; strModifiers += MatchModifiers(ModifierKeys.Alt); } if ((modifiers & ModifierKeys.Windows) == ModifierKeys.Windows) { if (strModifiers.Length > 0) strModifiers += Modifier_Delimiter; strModifiers += MatchModifiers(ModifierKeys.Windows); ; } if ((modifiers & ModifierKeys.Shift) == ModifierKeys.Shift) { if (strModifiers.Length > 0) strModifiers += Modifier_Delimiter; strModifiers += MatchModifiers(ModifierKeys.Shift); ; } return strModifiers; } } throw GetConvertToException(value,destinationType); } private ModifierKeys GetModifierKeys(string modifiersToken, CultureInfo culture) { ModifierKeys modifiers = ModifierKeys.None; if (modifiersToken.Length != 0) { int offset = 0; do { offset = modifiersToken.IndexOf(Modifier_Delimiter); string token = (offset < 0) ? modifiersToken : modifiersToken.Substring(0, offset); token = token.Trim(); token = token.ToUpper(culture); if (token == String.Empty) break; switch (token) { case "CONTROL" : case "CTRL" : modifiers |= ModifierKeys.Control; break; case "SHIFT" : modifiers |= ModifierKeys.Shift; break; case "ALT": modifiers |= ModifierKeys.Alt; break; case "WINDOWS": case "WIN": modifiers |= ModifierKeys.Windows; break; default: throw new NotSupportedException(SR.Get(SRID.Unsupported_Modifier, token)); } modifiersToken = modifiersToken.Substring(offset + 1); } while (offset != -1); } return modifiers; } /// /// Check for Valid enum, as any int can be casted to the enum. /// public static bool IsDefinedModifierKeys(ModifierKeys modifierKeys) { return (modifierKeys == ModifierKeys.None || (((int)modifierKeys & ~((int)ModifierKeysFlag)) == 0)); } private const char Modifier_Delimiter = '+'; private static ModifierKeys ModifierKeysFlag = ModifierKeys.Windows | ModifierKeys.Shift | ModifierKeys.Alt | ModifierKeys.Control ; internal static string MatchModifiers(ModifierKeys modifierKeys) { string modifiers = String.Empty; switch (modifierKeys) { case ModifierKeys.Control: modifiers="Ctrl";break; case ModifierKeys.Shift : modifiers="Shift";break; case ModifierKeys.Alt : modifiers="Alt";break; case ModifierKeys.Windows: modifiers="Windows";break; } return modifiers; } } } // 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
- RenderData.cs
- BrowserCapabilitiesCodeGenerator.cs
- DecoderExceptionFallback.cs
- HtmlInputPassword.cs
- EventLogPermission.cs
- HyperLinkColumn.cs
- Int32.cs
- OuterGlowBitmapEffect.cs
- Tuple.cs
- Transform.cs
- EventMap.cs
- TreeIterators.cs
- EditorZoneAutoFormat.cs
- HitTestWithPointDrawingContextWalker.cs
- AutomationAttributeInfo.cs
- ControlCachePolicy.cs
- XmlDataSourceView.cs
- HttpStaticObjectsCollectionBase.cs
- WindowsListViewItemCheckBox.cs
- TemplateBindingExtensionConverter.cs
- SimpleRecyclingCache.cs
- TakeQueryOptionExpression.cs
- InvariantComparer.cs
- DirectoryNotFoundException.cs
- MobileResource.cs
- ArrangedElement.cs
- ReferenceEqualityComparer.cs
- DataGridColumn.cs
- DataGridLinkButton.cs
- PartialTrustHelpers.cs
- BitmapEffectvisualstate.cs
- SelectedDatesCollection.cs
- ImageBrush.cs
- TypedColumnHandler.cs
- NamespaceInfo.cs
- XmlnsPrefixAttribute.cs
- HtmlElement.cs
- Scheduler.cs
- Currency.cs
- Span.cs
- PageThemeParser.cs
- ConnectionPoolRegistry.cs
- DictationGrammar.cs
- DataFieldConverter.cs
- SerializableTypeCodeDomSerializer.cs
- ObjectNavigationPropertyMapping.cs
- XPathExpr.cs
- ExpanderAutomationPeer.cs
- SqlExpander.cs
- SpotLight.cs
- SqlLiftWhereClauses.cs
- AuthorizationRule.cs
- Int16.cs
- EDesignUtil.cs
- ExpressionParser.cs
- ConfigXmlWhitespace.cs
- Parsers.cs
- LinqExpressionNormalizer.cs
- CalculatedColumn.cs
- ClientSettingsStore.cs
- WebPartUtil.cs
- SQLByte.cs
- Size3D.cs
- MasterPage.cs
- InfoCardRSAPKCS1KeyExchangeFormatter.cs
- MultiPropertyDescriptorGridEntry.cs
- SchemaElementDecl.cs
- relpropertyhelper.cs
- SoapIncludeAttribute.cs
- AnnotationResourceChangedEventArgs.cs
- CaseInsensitiveHashCodeProvider.cs
- SchemaLookupTable.cs
- RuntimeResourceSet.cs
- QueryConverter.cs
- BindingSource.cs
- WebPartsPersonalizationAuthorization.cs
- CommandDevice.cs
- CommandConverter.cs
- EntityModelSchemaGenerator.cs
- TdsParserStaticMethods.cs
- StrongNameMembershipCondition.cs
- ExpressionBuilder.cs
- MultiPageTextView.cs
- ContextBase.cs
- RuleSettings.cs
- Activity.cs
- XmlUtil.cs
- XmlHierarchyData.cs
- SortableBindingList.cs
- Calendar.cs
- Trigger.cs
- SystemIPv6InterfaceProperties.cs
- MaterialGroup.cs
- BeginEvent.cs
- ContractNamespaceAttribute.cs
- AliasExpr.cs
- RepeatBehaviorConverter.cs
- ProxyAttribute.cs
- SqlDependency.cs
- TextSelection.cs