Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / 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
- TdsParserSessionPool.cs
- WebPartConnectionsConfigureVerb.cs
- NonVisualControlAttribute.cs
- PageAdapter.cs
- jithelpers.cs
- XmlIncludeAttribute.cs
- HwndHostAutomationPeer.cs
- CommandDevice.cs
- HijriCalendar.cs
- SqlDataReaderSmi.cs
- ViewGenResults.cs
- RenderContext.cs
- InvalidPrinterException.cs
- ExpressionParser.cs
- ListChangedEventArgs.cs
- SiteMapNodeCollection.cs
- DataSourceHelper.cs
- WebPartUserCapability.cs
- RTLAwareMessageBox.cs
- DependencyPropertyHelper.cs
- RowsCopiedEventArgs.cs
- DataControlPagerLinkButton.cs
- TriggerCollection.cs
- String.cs
- NotSupportedException.cs
- InputBuffer.cs
- SizeKeyFrameCollection.cs
- DateTimePickerDesigner.cs
- SecurityTokenSerializer.cs
- ValidationEventArgs.cs
- UserControl.cs
- DSASignatureDeformatter.cs
- RegisteredHiddenField.cs
- TimeZone.cs
- HtmlControl.cs
- Mapping.cs
- SqlFunctionAttribute.cs
- TextOptionsInternal.cs
- IsolatedStorageSecurityState.cs
- XsltOutput.cs
- FileChangesMonitor.cs
- TypeUsage.cs
- ThreadStartException.cs
- SecureUICommand.cs
- PersistenceProviderDirectory.cs
- ElapsedEventArgs.cs
- XmlMemberMapping.cs
- XmlMtomReader.cs
- DependencyObject.cs
- CollectionViewGroup.cs
- PropertyChangingEventArgs.cs
- SQLInt64Storage.cs
- PixelFormatConverter.cs
- RolePrincipal.cs
- SystemBrushes.cs
- GenericWebPart.cs
- SQLInt16.cs
- InvariantComparer.cs
- LinqDataSourceSelectEventArgs.cs
- WizardSideBarListControlItem.cs
- XmlSchemaSimpleTypeRestriction.cs
- ArrangedElementCollection.cs
- AlgoModule.cs
- TypedElement.cs
- NonVisualControlAttribute.cs
- WizardForm.cs
- HtmlInputRadioButton.cs
- X509CertificateClaimSet.cs
- ConnectionConsumerAttribute.cs
- PersonalizationStateInfo.cs
- DataGridTextBox.cs
- ColumnWidthChangingEvent.cs
- JsonWriter.cs
- GraphicsContainer.cs
- SubstitutionList.cs
- InputMethodStateTypeInfo.cs
- NamedElement.cs
- OdbcReferenceCollection.cs
- XamlTreeBuilder.cs
- WriteTimeStream.cs
- EtwTrace.cs
- OutputWindow.cs
- Expander.cs
- FunctionImportElement.cs
- Size3DValueSerializer.cs
- EncodingTable.cs
- FixedSOMTextRun.cs
- NavigationCommands.cs
- RetrieveVirtualItemEventArgs.cs
- CreateUserWizard.cs
- DocumentScope.cs
- ViewRendering.cs
- WeakReadOnlyCollection.cs
- URIFormatException.cs
- infer.cs
- MarshalByRefObject.cs
- InvokeGenerator.cs
- SessionState.cs
- ServiceBehaviorElementCollection.cs
- SettingsProperty.cs