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//------------------------------------------------------------------------------
// <copyright file="FontUnit.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
namespace System.Web.UI.WebControls {
using System;
using System.ComponentModel;
using System.Globalization;
using System.Security.Permissions;
using System.Web.Util;
/// <devdoc>
/// <para>Respresent the font unit.</para>
/// </devdoc>
[
TypeConverterAttribute(typeof(FontUnitConverter))
]
[Serializable]
public struct FontUnit {
/// <devdoc>
/// <para>Specifies an empty <see cref='System.Web.UI.WebControls.FontUnit'/>. This field is read only. </para>
/// </devdoc>
public static readonly FontUnit Empty = new FontUnit();
/// <devdoc>
/// <para>Specifies a <see cref='System.Web.UI.WebControls.FontUnit'/> with
/// <see langword='FontSize.Smaller'/> font. This field is read only. </para>
/// </devdoc>
public static readonly FontUnit Smaller = new FontUnit(FontSize.Smaller);
/// <devdoc>
/// <para>Specifies a <see cref='System.Web.UI.WebControls.FontUnit'/> with <see langword='FontSize.Larger'/>
/// font. This field is read only.</para>
/// </devdoc>
public static readonly FontUnit Larger = new FontUnit(FontSize.Larger);
/// <devdoc>
/// <para>Specifies a <see cref='System.Web.UI.WebControls.FontUnit'/> with
/// <see langword='FontSize.XXSmall'/> font. This field is read only.</para>
/// </devdoc>
public static readonly FontUnit XXSmall = new FontUnit(FontSize.XXSmall);
/// <devdoc>
/// <para>Specifies a <see cref='System.Web.UI.WebControls.FontUnit'/> with <see langword='FontSize.XSmall'/>
/// font. This field is read only.</para>
/// </devdoc>
public static readonly FontUnit XSmall = new FontUnit(FontSize.XSmall);
/// <devdoc>
/// <para>Specifies a <see cref='System.Web.UI.WebControls.FontUnit'/> with <see langword='FontSize.Small'/>
/// font. This field is read only.</para>
/// </devdoc>
public static readonly FontUnit Small = new FontUnit(FontSize.Small);
/// <devdoc>
/// <para>Specifies a <see cref='System.Web.UI.WebControls.FontUnit'/> with <see langword='FontSize.Medium'/>
/// font. This field is read only.</para>
/// </devdoc>
public static readonly FontUnit Medium = new FontUnit(FontSize.Medium);
/// <devdoc>
/// <para>Specifies a <see cref='System.Web.UI.WebControls.FontUnit'/> with <see langword='FontSize.Large'/>
/// font. This field is read only.</para>
/// </devdoc>
public static readonly FontUnit Large = new FontUnit(FontSize.Large);
/// <devdoc>
/// <para>Specifies a <see cref='System.Web.UI.WebControls.FontUnit'/> with <see langword='FontSize.XLarge'/>
/// font. This field is read only.</para>
/// </devdoc>
public static readonly FontUnit XLarge = new FontUnit(FontSize.XLarge);
/// <devdoc>
/// Specifies a <see cref='System.Web.UI.WebControls.FontUnit'/> with
/// <see langword='FontSize.XXLarge'/> font. This field is read only.
/// </devdoc>
public static readonly FontUnit XXLarge = new FontUnit(FontSize.XXLarge);
private readonly FontSize type;
private readonly Unit value;
/// <devdoc>
/// <para>Initializes a new instance of the <see cref='System.Web.UI.WebControls.FontUnit'/> class with a <see cref='System.Web.UI.WebControls.FontSize'/>.</para>
/// </devdoc>
public FontUnit(FontSize type) {
if (type < FontSize.NotSet || type > FontSize.XXLarge) {
throw new ArgumentOutOfRangeException("type");
}
this.type = type;
if (this.type == FontSize.AsUnit) {
value = Unit.Point(10);
}
else {
value = Unit.Empty;
}
}
/// <devdoc>
/// <para>Initializes a new instance of the <see cref='System.Web.UI.WebControls.FontUnit'/> class with a <see cref='System.Web.UI.WebControls.Unit'/>.</para>
/// </devdoc>
public FontUnit(Unit value) {
this.type = FontSize.NotSet;
if (value.IsEmpty == false) {
this.type = FontSize.AsUnit;
this.value = value;
}
else {
this.value = Unit.Empty;
}
}
/// <devdoc>
/// <para>Initializes a new instance of the <see cref='System.Web.UI.WebControls.FontUnit'/> class with an integer value.</para>
/// </devdoc>
public FontUnit(int value) {
this.type = FontSize.AsUnit;
this.value = Unit.Point(value);
}
/// <devdoc>
/// <para>Initializes a new instance of the <see cref='System.Web.UI.WebControls.FontUnit'/> class with a double value.</para>
/// </devdoc>
public FontUnit(double value) : this(new Unit(value, UnitType.Point)) {
}
/// <devdoc>
/// <para>Initializes a new instance of the <see cref='System.Web.UI.WebControls.FontUnit'/> class with a double value.</para>
/// </devdoc>
public FontUnit(double value, UnitType type) : this(new Unit(value, type)) {
}
/// <devdoc>
/// <para>Initializes a new instance of the <see cref='System.Web.UI.WebControls.FontUnit'/> class with a string.</para>
/// </devdoc>
public FontUnit(string value) : this(value, CultureInfo.CurrentCulture) {
}
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public FontUnit(string value, CultureInfo culture) {
this.type = FontSize.NotSet;
this.value = Unit.Empty;
if (!String.IsNullOrEmpty(value)) {
// This is invariant because it acts like an enum with a number together.
// The enum part is invariant, but the number uses current culture.
char firstChar = Char.ToLower(value[0], CultureInfo.InvariantCulture);
if (firstChar == 'x') {
if (String.Equals(value, "xx-small", StringComparison.OrdinalIgnoreCase) ||
String.Equals(value, "xxsmall", StringComparison.OrdinalIgnoreCase)) {
this.type = FontSize.XXSmall;
return;
}
else if (String.Equals(value, "x-small", StringComparison.OrdinalIgnoreCase) ||
String.Equals(value, "xsmall", StringComparison.OrdinalIgnoreCase)) {
this.type = FontSize.XSmall;
return;
}
else if (String.Equals(value, "x-large", StringComparison.OrdinalIgnoreCase) ||
String.Equals(value, "xlarge", StringComparison.OrdinalIgnoreCase)) {
this.type = FontSize.XLarge;
return;
}
else if (String.Equals(value, "xx-large", StringComparison.OrdinalIgnoreCase) ||
String.Equals(value, "xxlarge", StringComparison.OrdinalIgnoreCase)) {
this.type = FontSize.XXLarge;
return;
}
}
else if (firstChar == 's') {
if (String.Equals(value, "small", StringComparison.OrdinalIgnoreCase)) {
this.type = FontSize.Small;
return;
}
else if (String.Equals(value, "smaller", StringComparison.OrdinalIgnoreCase)) {
this.type = FontSize.Smaller;
return;
}
}
else if (firstChar == 'l') {
if (String.Equals(value, "large", StringComparison.OrdinalIgnoreCase)) {
this.type = FontSize.Large;
return;
}
if (String.Equals(value, "larger", StringComparison.OrdinalIgnoreCase)) {
this.type = FontSize.Larger;
return;
}
}
else if ((firstChar == 'm') && String.Equals(value, "medium", StringComparison.OrdinalIgnoreCase)) {
this.type = FontSize.Medium;
return;
}
this.value = new Unit(value, culture, UnitType.Point);
this.type = FontSize.AsUnit;
}
}
/// <devdoc>
/// <para>Indicates whether the font size has been set.</para>
/// </devdoc>
public bool IsEmpty {
get {
return type == FontSize.NotSet;
}
}
/// <devdoc>
/// <para>Indicates the font size by type.</para>
/// </devdoc>
public FontSize Type {
get {
return type;
}
}
/// <devdoc>
/// <para>Indicates the font size by <see cref='System.Web.UI.WebControls.Unit'/>.</para>
/// </devdoc>
public Unit Unit {
get {
return value;
}
}
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public override int GetHashCode() {
return HashCodeCombiner.CombineHashCodes(type.GetHashCode(), value.GetHashCode());
}
/// <devdoc>
/// <para>Determines if the specified <see cref='System.Object' qualify='true'/> is equivilent to the <see cref='System.Web.UI.WebControls.FontUnit'/> represented by this instance.</para>
/// </devdoc>
public override bool Equals(object obj) {
if (obj == null || !(obj is FontUnit))
return false;
FontUnit f = (FontUnit)obj;
if ((f.type == type) && (f.value == value)) {
return true;
}
return false;
}
/// <devdoc>
/// <para>Compares two <see cref='System.Web.UI.WebControls.FontUnit'/> objects for equality.</para>
/// </devdoc>
public static bool operator ==(FontUnit left, FontUnit right) {
return ((left.type == right.type) && (left.value == right.value));
}
/// <devdoc>
/// <para>Compares two <see cref='System.Web.UI.WebControls.FontUnit'/> objects
/// for inequality.</para>
/// </devdoc>
public static bool operator !=(FontUnit left, FontUnit right) {
return ((left.type != right.type) || (left.value != right.value));
}
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public static FontUnit Parse(string s) {
return new FontUnit(s, CultureInfo.InvariantCulture);
}
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public static FontUnit Parse(string s, CultureInfo culture) {
return new FontUnit(s, culture);
}
/// <devdoc>
/// <para>Creates a <see cref='System.Web.UI.WebControls.FontUnit'/> of type Point from an integer value.</para>
/// </devdoc>
public static FontUnit Point(int n) {
return new FontUnit(n);
}
/// <devdoc>
/// <para>Convert a <see cref='System.Web.UI.WebControls.FontUnit'/> to a string.</para>
/// </devdoc>
public override string ToString() {
return ToString((IFormatProvider)CultureInfo.CurrentCulture);
}
public string ToString(CultureInfo culture) {
return ToString((IFormatProvider)culture);
}
public string ToString(IFormatProvider formatProvider) {
string s = String.Empty;
if (IsEmpty)
return s;
switch (type) {
case FontSize.AsUnit:
s = value.ToString(formatProvider);
break;
case FontSize.XXSmall:
s = "XX-Small";
break;
case FontSize.XSmall:
s = "X-Small";
break;
case FontSize.XLarge:
s = "X-Large";
break;
case FontSize.XXLarge:
s = "XX-Large";
break;
default:
s = PropertyConverter.EnumToString(typeof(FontSize), type);
break;
}
return s;
}
/// <devdoc>
/// <para>Implicitly creates a <see cref='System.Web.UI.WebControls.FontUnit'/> of type Point from an integer value.</para>
/// </devdoc>
public static implicit operator FontUnit(int n) {
return FontUnit.Point(n);
}
}
}
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