FontUnit.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / UI / WebControls / FontUnit.cs / 1 / FontUnit.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

namespace System.Web.UI.WebControls { 
 
    using System;
    using System.ComponentModel; 
    using System.Globalization;
    using System.Security.Permissions;
    using System.Web.Util;
 
    /// 
    ///    Respresent the font unit. 
    ///  
    [
        TypeConverterAttribute(typeof(FontUnitConverter)) 
    ]
    [Serializable]
    public struct FontUnit {
 

        ///  
        /// Specifies an empty . This field is read only.  
        /// 
        public static readonly FontUnit Empty = new FontUnit(); 


        /// 
        /// Specifies a  with 
        ///  font. This field is read only. 
        ///  
        public static readonly FontUnit Smaller = new FontUnit(FontSize.Smaller); 

        ///  
        /// Specifies a  with 
        /// font. This field is read only.
        /// 
        public static readonly FontUnit Larger = new FontUnit(FontSize.Larger); 

        ///  
        /// Specifies a  with 
        ///  font. This field is read only.
        ///  
        public static readonly FontUnit XXSmall = new FontUnit(FontSize.XXSmall);

        /// 
        /// Specifies a  with  
        /// font. This field is read only.
        ///  
        public static readonly FontUnit XSmall = new FontUnit(FontSize.XSmall); 

        ///  
        /// Specifies a  with 
        /// font. This field is read only.
        /// 
        public static readonly FontUnit Small = new FontUnit(FontSize.Small); 

        ///  
        /// Specifies a  with  
        /// font. This field is read only.
        ///  
        public static readonly FontUnit Medium = new FontUnit(FontSize.Medium);

        /// 
        /// Specifies a  with  
        /// font. This field is read only.
        ///  
        public static readonly FontUnit Large = new FontUnit(FontSize.Large); 

        ///  
        /// Specifies a  with 
        /// font. This field is read only.
        /// 
        public static readonly FontUnit XLarge = new FontUnit(FontSize.XLarge); 

        ///  
        ///    Specifies a  with 
        ///  font. This field is read only.
        ///  
        public static readonly FontUnit XXLarge = new FontUnit(FontSize.XXLarge);

        private readonly FontSize type;
        private readonly Unit value; 

 
        ///  
        /// Initializes a new instance of the  class with a .
        ///  
        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;
            }
        }
 

        ///  
        /// Initializes a new instance of the  class with a . 
        /// 
        public FontUnit(Unit value) { 
            this.type = FontSize.NotSet;
            if (value.IsEmpty == false) {
                this.type = FontSize.AsUnit;
                this.value = value; 
            }
            else { 
                this.value = Unit.Empty; 
            }
        } 


        /// 
        /// Initializes a new instance of the  class with an integer value. 
        /// 
        public FontUnit(int value) { 
            this.type = FontSize.AsUnit; 
            this.value = Unit.Point(value);
        } 


        /// 
        /// Initializes a new instance of the  class with a double value. 
        /// 
        public FontUnit(double value) : this(new Unit(value, UnitType.Point)) { 
        } 

 
        /// 
        /// Initializes a new instance of the  class with a double value.
        /// 
        public FontUnit(double value, UnitType type) : this(new Unit(value, type)) { 
        }
 
 
        /// 
        /// Initializes a new instance of the  class with a string. 
        /// 
        public FontUnit(string value) : this(value, CultureInfo.CurrentCulture) {
        }
 

        ///  
        ///    [To be supplied.] 
        /// 
        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;
            }
        } 

 
 
        /// 
        ///    Indicates whether the font size has been set. 
        /// 
        public bool IsEmpty {
            get {
                return type == FontSize.NotSet; 
            }
        } 
 

        ///  
        ///    Indicates the font size by type.
        /// 
        public FontSize Type {
            get { 
                return type;
            } 
        } 

 
        /// 
        /// Indicates the font size by .
        /// 
        public Unit Unit { 
            get {
                return value; 
            } 
        }
 

        /// 
        ///    [To be supplied.]
        ///  
        public override int GetHashCode() {
            return HashCodeCombiner.CombineHashCodes(type.GetHashCode(), value.GetHashCode()); 
        } 

 
        /// 
        /// Determines if the specified  is equivilent to the  represented by this instance.
        /// 
        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; 
        }
 
 
        /// 
        /// Compares two  objects for equality. 
        /// 
        public static bool operator ==(FontUnit left, FontUnit right) {
            return ((left.type == right.type) && (left.value == right.value));
        } 

 
        ///  
        /// Compares two  objects
        ///    for inequality. 
        /// 
        public static bool operator !=(FontUnit left, FontUnit right) {
            return ((left.type != right.type) || (left.value != right.value));
        } 

 
        ///  
        ///    [To be supplied.]
        ///  
        public static FontUnit Parse(string s) {
            return new FontUnit(s, CultureInfo.InvariantCulture);
        }
 

        ///  
        ///    [To be supplied.] 
        /// 
        public static FontUnit Parse(string s, CultureInfo culture) { 
            return new FontUnit(s, culture);
        }

 
        /// 
        /// Creates a  of type Point from an integer value. 
        ///  
        public static FontUnit Point(int n) {
            return new FontUnit(n); 
        }


        ///  
        /// Convert a  to a string.
        ///  
        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; 
        }
 

        /// 
        /// Implicitly creates a  of type Point from an integer value.
        ///  
        public static implicit operator FontUnit(int n) {
            return FontUnit.Point(n); 
        } 
    }
}

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