Exemplo n.º 1
0
        /// <summary>
        /// Parses to CSS string.
        /// </summary>
        /// <returns>The to CSS string.</returns>
        /// <param name="tagName">Tag name.</param>
        /// <param name="style">Style.</param>
        public static string ParseToCSSString(string tagName, TextStyleParameters style)
        {
            var builder = new StringBuilder ();
            builder.Append (tagName + "{");

            var runtimeProperties = style.GetType ().GetRuntimeProperties ();
            foreach (var prop in runtimeProperties) {
                try {
                    var value = prop.GetValue (style);

                    if (value != null) {
                        string parsedValue = null;
                        switch (prop.PropertyType.Name) {
                        case "String":
                            if ((value as string).StartsWith ("#"))
                                parsedValue = (string)value;
                            else
                                parsedValue = "'" + value + "'";
                            break;
                        case "Single":
                            if (Convert.ToSingle (value) > float.MinValue) {
                                parsedValue = Convert.ToString (value);
                                if (prop.Name == "FontSize") // Dirty, I really need a list of things that can be set in pixel values
                                        parsedValue += "px";
                            }
                            break;
                        case "Int32":
                            if (Convert.ToInt32 (value) > int.MinValue)
                                parsedValue = Convert.ToString (value);
                            break;
                        case "Single[]":
                            parsedValue = Convert.ToString (value);
                            break;
                        case "TextStyleAlign":
                        case "TextStyleDecoration":
                        case "TextStyleTextTransform":
                        case "TextStyleTextOverflow":
                            var cast = Convert.ToString (value);
                            if (cast != "None")
                                parsedValue = cast.ToLower ();
                            break;
                        default:
                            throw new InvalidCastException ("Could not find the appropriate type " + prop.PropertyType.Name);
                        }

                        var attributes = (CssAttribute[])prop.GetCustomAttributes (
                                             typeof(CssAttribute), false);

                        if (attributes.Length > 0 && parsedValue != null)
                            builder.Append (attributes [0].Name + ":" + parsedValue + ";");
                    }
                } catch (Exception ex) {
                    throw ex;
                }
            }

            builder.Append ("}");

            return builder.ToString ();
        }
Exemplo n.º 2
0
        /// <summary>
        /// Merges a css rule.
        /// </summary>
        /// <returns>The rule.</returns>
        /// <param name="curStyle">Target TextStyleParameters</param>
        /// <param name="css">Css value</param>
        /// <param name="clone">If set to <c>true</c> clone the style</param>
        public static TextStyleParameters MergeRule(TextStyleParameters curStyle, string css, bool clone)
        {
            var parser = new CssParser ();
            var rules = parser.ParseAll (css);
            if (rules.Count () != 1) {
                throw new NotSupportedException ("Only a single css class may be merged at a time");
            }

            var mergedStyle = clone ? curStyle.Clone () : curStyle;

            var rule = rules.FirstOrDefault ();
            if (rule != null) {
                ParseCSSRule (ref mergedStyle, rule);
            }

            return mergedStyle;
        }
Exemplo n.º 3
0
        /// <summary>
        /// Parses the specified CSS
        /// </summary>
        /// <param name="css">Css.</param>
        public static Dictionary<string, TextStyleParameters> Parse(string css)
        {
            var parser = new CssParser ();
            var rules = parser.ParseAll (css);

            var textStyles = new Dictionary<string, TextStyleParameters> ();

            foreach (var rule in rules) {
                foreach (var selector in rule.Selectors) {

                    // If it doesnt exist, create it
                    if (!textStyles.ContainsKey (selector))
                        textStyles [selector] = new TextStyleParameters (selector);

                    var curStyle = textStyles [selector];
                    ParseCSSRule (ref curStyle, rule);
                }

            }

            return textStyles;
        }
Exemplo n.º 4
0
 /// <summary>
 /// Parses the CSS rule.
 /// </summary>
 /// <param name="curStyle">Current style.</param>
 /// <param name="rule">Rule.</param>
 internal static void ParseCSSRule(ref TextStyleParameters curStyle, CssParserRule rule)
 {
     foreach (var declaration in rule.Declarations) {
         if (_textStyleProperties.ContainsKey (declaration.Property)) {
             var cleanedValue = declaration.Value.Replace ("\"", "");
             cleanedValue = cleanedValue.Trim ();
             var prop = _textStyleProperties [declaration.Property];
             switch (prop.PropertyType.Name) {
             case "String":
                 curStyle.SetValue (prop.Name, cleanedValue);
                 break;
             case "Int32":
                 int numInt;
                 if (int.TryParse (cleanedValue, out numInt)) {
                     curStyle.SetValue (prop.Name, numInt);
                 }
                 break;
             case "Single":
                 cleanedValue = cleanedValue.Replace ("px", "");
                 float numFloat;
                 if (float.TryParse (cleanedValue, out numFloat)) {
                     curStyle.SetValue (prop.Name, numFloat);
                 } else
                     throw new Exception ("Failed to Parse Single value " + cleanedValue);
                 break;
             case "Single[]":
                 var parts = cleanedValue.Split (new char[]{ ' ', ',' }, StringSplitOptions.RemoveEmptyEntries);
                 var parsedValues = new float[parts.Length];
                 for (int i = 0; i < parts.Length; i++) {
                     float numArrayFloat;
                     if (float.TryParse (parts [i], out numArrayFloat)) {
                         parsedValues [i] = numArrayFloat;
                     }
                 }
                 curStyle.SetValue (prop.Name, parsedValues);
                 break;
             case "TextStyleAlign":
                 curStyle.TextAlign = EnumUtils.FromDescription<TextStyleAlign> (cleanedValue);
                 break;
             case "TextStyleDecoration":
                 curStyle.TextDecoration = EnumUtils.FromDescription<TextStyleDecoration> (cleanedValue);
                 break;
             case "TextStyleTextTransform":
                 curStyle.TextTransform = EnumUtils.FromDescription<TextStyleTextTransform> (cleanedValue);
                 break;
             case "TextStyleTextOverflow":
                 curStyle.TextOverflow = EnumUtils.FromDescription<TextStyleTextOverflow> (cleanedValue);
                 break;
             default:
                 throw new InvalidCastException ("Could not find the appropriate type " + prop.PropertyType.Name);
             }
         }
     }
 }