Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / wpf / src / Framework / System / Windows / CornerRadiusConverter.cs / 1 / CornerRadiusConverter.cs
//----------------------------------------------------------------------------
//
// Copyright (C) Microsoft Corporation. All rights reserved.
//
// File: CornerRadiusConverter.cs
//
// Description: Contains the CornerRadiusConverter: TypeConverter for the CornerRadiusclass.
//
// History:
// 07/19/2004 : t-jaredg - Created
//
//---------------------------------------------------------------------------
using System;
using System.ComponentModel;
using System.ComponentModel.Design.Serialization;
using System.Globalization;
using System.Reflection;
using System.Text;
using System.Windows;
using System.Security;
using MS.Internal;
using MS.Utility;
#pragma warning disable 1634, 1691 // suppressing PreSharp warnings
namespace System.Windows
{
///
/// CornerRadiusConverter - Converter class for converting instances of other types to and from CornerRadius instances.
///
public class CornerRadiusConverter : TypeConverter
{
#region Public Methods
///
/// CanConvertFrom - Returns whether or not this class can convert from a given type.
///
///
/// bool - True if thie converter can convert from the provided type, false if not.
///
/// The ITypeDescriptorContext for this call.
/// The Type being queried for support.
public override bool CanConvertFrom(ITypeDescriptorContext typeDescriptorContext, Type sourceType)
{
// We can only handle strings, integral and floating types
TypeCode tc = Type.GetTypeCode(sourceType);
switch (tc)
{
case TypeCode.String:
case TypeCode.Decimal:
case TypeCode.Single:
case TypeCode.Double:
case TypeCode.Int16:
case TypeCode.Int32:
case TypeCode.Int64:
case TypeCode.UInt16:
case TypeCode.UInt32:
case TypeCode.UInt64:
return true;
default:
return false;
}
}
///
/// CanConvertTo - Returns whether or not this class can convert to a given type.
///
///
/// bool - True if this converter can convert to the provided type, false if not.
///
/// The ITypeDescriptorContext for this call.
/// The Type being queried for support.
public override bool CanConvertTo(ITypeDescriptorContext typeDescriptorContext, Type destinationType)
{
// We can convert to an InstanceDescriptor or to a string.
if ( destinationType == typeof(InstanceDescriptor)
|| destinationType == typeof(string))
{
return true;
}
else
{
return false;
}
}
///
/// ConvertFrom - Attempt to convert to a CornerRadius from the given object
///
///
/// The CornerRadius which was constructed.
///
///
/// An ArgumentNullException is thrown if the example object is null.
///
///
/// An ArgumentException is thrown if the example object is not null and is not a valid type
/// which can be converted to a CornerRadius.
///
/// The ITypeDescriptorContext for this call.
/// The CultureInfo which is respected when converting.
/// The object to convert to a CornerRadius.
public override object ConvertFrom(ITypeDescriptorContext typeDescriptorContext, CultureInfo cultureInfo, object source)
{
if (source != null)
{
if (source is string) { return FromString((string)source, cultureInfo); }
else { return new CornerRadius(Convert.ToDouble(source, cultureInfo)); }
}
throw GetConvertFromException(source);
}
//Workaround for PreSharp bug - it complains about value being possibly null even though there is a check above
#pragma warning disable 56506
///
/// ConvertTo - Attempt to convert a CornerRadius to the given type
///
///
/// The object which was constructoed.
///
///
/// An ArgumentNullException is thrown if the example object is null.
///
///
/// An ArgumentException is thrown if the object is not null and is not a CornerRadius,
/// or if the destinationType isn't one of the valid destination types.
///
/// The ITypeDescriptorContext for this call.
/// The CultureInfo which is respected when converting.
/// The CornerRadius to convert.
/// The type to which to convert the CornerRadius instance.
///
/// Critical: calls InstanceDescriptor ctor which LinkDemands
/// PublicOK: can only make an InstanceDescriptor for CornerRadius, not an arbitrary class
///
[SecurityCritical]
public override object ConvertTo(ITypeDescriptorContext typeDescriptorContext, CultureInfo cultureInfo, object value, Type destinationType)
{
if (null == value)
{
throw new ArgumentNullException("value");
}
if (null == destinationType)
{
throw new ArgumentNullException("destinationType");
}
if (!(value is CornerRadius))
{
#pragma warning suppress 6506 // value is obviously not null
throw new ArgumentException(SR.Get(SRID.UnexpectedParameterType, value.GetType(), typeof(CornerRadius)), "value");
}
CornerRadius cr = (CornerRadius)value;
if (destinationType == typeof(string)) { return ToString(cr, cultureInfo); }
if (destinationType == typeof(InstanceDescriptor))
{
ConstructorInfo ci = typeof(CornerRadius).GetConstructor(new Type[] { typeof(double), typeof(double), typeof(double), typeof(double) });
return new InstanceDescriptor(ci, new object[] { cr.TopLeft, cr.TopRight, cr.BottomRight, cr.BottomLeft });
}
throw new ArgumentException(SR.Get(SRID.CannotConvertType, typeof(CornerRadius), destinationType.FullName));
}
//Workaround for PreSharp bug - it complains about value being possibly null even though there is a check above
#pragma warning restore 56506
#endregion Public Methods
//-------------------------------------------------------------------
//
// Internal Methods
//
//-------------------------------------------------------------------
#region Internal Methods
static internal string ToString(CornerRadius cr, CultureInfo cultureInfo)
{
char listSeparator = TokenizerHelper.GetNumericListSeparator(cultureInfo);
// Initial capacity [64] is an estimate based on a sum of:
// 48 = 4x double (twelve digits is generous for the range of values likely)
// 8 = 4x UnitType string (approx two characters)
// 4 = 4x separator characters
StringBuilder sb = new StringBuilder(64);
sb.Append(cr.TopLeft.ToString(cultureInfo));
sb.Append(listSeparator);
sb.Append(cr.TopRight.ToString(cultureInfo));
sb.Append(listSeparator);
sb.Append(cr.BottomRight.ToString(cultureInfo));
sb.Append(listSeparator);
sb.Append(cr.BottomLeft.ToString(cultureInfo));
return sb.ToString();
}
static internal CornerRadius FromString(string s, CultureInfo cultureInfo)
{
TokenizerHelper th = new TokenizerHelper(s, cultureInfo);
double[] radii = new double[4];
int i = 0;
// Peel off each Length in the delimited list.
while (th.NextToken())
{
if (i >= 4)
{
i = 5; // Set i to a bad value.
break;
}
radii[i] = double.Parse(th.GetCurrentToken(), cultureInfo);
i++;
}
// We have a reasonable interpreation for one value (all four edges)
// and four values (left, top, right, bottom).
switch (i)
{
case 1:
return (new CornerRadius(radii[0]));
case 4:
return (new CornerRadius(radii[0], radii[1], radii[2], radii[3]));
}
throw new FormatException(SR.Get(SRID.InvalidStringCornerRadius, s));
}
#endregion
}
}
// 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.
//
// File: CornerRadiusConverter.cs
//
// Description: Contains the CornerRadiusConverter: TypeConverter for the CornerRadiusclass.
//
// History:
// 07/19/2004 : t-jaredg - Created
//
//---------------------------------------------------------------------------
using System;
using System.ComponentModel;
using System.ComponentModel.Design.Serialization;
using System.Globalization;
using System.Reflection;
using System.Text;
using System.Windows;
using System.Security;
using MS.Internal;
using MS.Utility;
#pragma warning disable 1634, 1691 // suppressing PreSharp warnings
namespace System.Windows
{
///
/// CornerRadiusConverter - Converter class for converting instances of other types to and from CornerRadius instances.
///
public class CornerRadiusConverter : TypeConverter
{
#region Public Methods
///
/// CanConvertFrom - Returns whether or not this class can convert from a given type.
///
///
/// bool - True if thie converter can convert from the provided type, false if not.
///
/// The ITypeDescriptorContext for this call.
/// The Type being queried for support.
public override bool CanConvertFrom(ITypeDescriptorContext typeDescriptorContext, Type sourceType)
{
// We can only handle strings, integral and floating types
TypeCode tc = Type.GetTypeCode(sourceType);
switch (tc)
{
case TypeCode.String:
case TypeCode.Decimal:
case TypeCode.Single:
case TypeCode.Double:
case TypeCode.Int16:
case TypeCode.Int32:
case TypeCode.Int64:
case TypeCode.UInt16:
case TypeCode.UInt32:
case TypeCode.UInt64:
return true;
default:
return false;
}
}
///
/// CanConvertTo - Returns whether or not this class can convert to a given type.
///
///
/// bool - True if this converter can convert to the provided type, false if not.
///
/// The ITypeDescriptorContext for this call.
/// The Type being queried for support.
public override bool CanConvertTo(ITypeDescriptorContext typeDescriptorContext, Type destinationType)
{
// We can convert to an InstanceDescriptor or to a string.
if ( destinationType == typeof(InstanceDescriptor)
|| destinationType == typeof(string))
{
return true;
}
else
{
return false;
}
}
///
/// ConvertFrom - Attempt to convert to a CornerRadius from the given object
///
///
/// The CornerRadius which was constructed.
///
///
/// An ArgumentNullException is thrown if the example object is null.
///
///
/// An ArgumentException is thrown if the example object is not null and is not a valid type
/// which can be converted to a CornerRadius.
///
/// The ITypeDescriptorContext for this call.
/// The CultureInfo which is respected when converting.
/// The object to convert to a CornerRadius.
public override object ConvertFrom(ITypeDescriptorContext typeDescriptorContext, CultureInfo cultureInfo, object source)
{
if (source != null)
{
if (source is string) { return FromString((string)source, cultureInfo); }
else { return new CornerRadius(Convert.ToDouble(source, cultureInfo)); }
}
throw GetConvertFromException(source);
}
//Workaround for PreSharp bug - it complains about value being possibly null even though there is a check above
#pragma warning disable 56506
///
/// ConvertTo - Attempt to convert a CornerRadius to the given type
///
///
/// The object which was constructoed.
///
///
/// An ArgumentNullException is thrown if the example object is null.
///
///
/// An ArgumentException is thrown if the object is not null and is not a CornerRadius,
/// or if the destinationType isn't one of the valid destination types.
///
/// The ITypeDescriptorContext for this call.
/// The CultureInfo which is respected when converting.
/// The CornerRadius to convert.
/// The type to which to convert the CornerRadius instance.
///
/// Critical: calls InstanceDescriptor ctor which LinkDemands
/// PublicOK: can only make an InstanceDescriptor for CornerRadius, not an arbitrary class
///
[SecurityCritical]
public override object ConvertTo(ITypeDescriptorContext typeDescriptorContext, CultureInfo cultureInfo, object value, Type destinationType)
{
if (null == value)
{
throw new ArgumentNullException("value");
}
if (null == destinationType)
{
throw new ArgumentNullException("destinationType");
}
if (!(value is CornerRadius))
{
#pragma warning suppress 6506 // value is obviously not null
throw new ArgumentException(SR.Get(SRID.UnexpectedParameterType, value.GetType(), typeof(CornerRadius)), "value");
}
CornerRadius cr = (CornerRadius)value;
if (destinationType == typeof(string)) { return ToString(cr, cultureInfo); }
if (destinationType == typeof(InstanceDescriptor))
{
ConstructorInfo ci = typeof(CornerRadius).GetConstructor(new Type[] { typeof(double), typeof(double), typeof(double), typeof(double) });
return new InstanceDescriptor(ci, new object[] { cr.TopLeft, cr.TopRight, cr.BottomRight, cr.BottomLeft });
}
throw new ArgumentException(SR.Get(SRID.CannotConvertType, typeof(CornerRadius), destinationType.FullName));
}
//Workaround for PreSharp bug - it complains about value being possibly null even though there is a check above
#pragma warning restore 56506
#endregion Public Methods
//-------------------------------------------------------------------
//
// Internal Methods
//
//-------------------------------------------------------------------
#region Internal Methods
static internal string ToString(CornerRadius cr, CultureInfo cultureInfo)
{
char listSeparator = TokenizerHelper.GetNumericListSeparator(cultureInfo);
// Initial capacity [64] is an estimate based on a sum of:
// 48 = 4x double (twelve digits is generous for the range of values likely)
// 8 = 4x UnitType string (approx two characters)
// 4 = 4x separator characters
StringBuilder sb = new StringBuilder(64);
sb.Append(cr.TopLeft.ToString(cultureInfo));
sb.Append(listSeparator);
sb.Append(cr.TopRight.ToString(cultureInfo));
sb.Append(listSeparator);
sb.Append(cr.BottomRight.ToString(cultureInfo));
sb.Append(listSeparator);
sb.Append(cr.BottomLeft.ToString(cultureInfo));
return sb.ToString();
}
static internal CornerRadius FromString(string s, CultureInfo cultureInfo)
{
TokenizerHelper th = new TokenizerHelper(s, cultureInfo);
double[] radii = new double[4];
int i = 0;
// Peel off each Length in the delimited list.
while (th.NextToken())
{
if (i >= 4)
{
i = 5; // Set i to a bad value.
break;
}
radii[i] = double.Parse(th.GetCurrentToken(), cultureInfo);
i++;
}
// We have a reasonable interpreation for one value (all four edges)
// and four values (left, top, right, bottom).
switch (i)
{
case 1:
return (new CornerRadius(radii[0]));
case 4:
return (new CornerRadius(radii[0], radii[1], radii[2], radii[3]));
}
throw new FormatException(SR.Get(SRID.InvalidStringCornerRadius, s));
}
#endregion
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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