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