/// <summary>
/// This method will set the value for a given property
/// </summary>
/// <param name="tag">property name</param>
/// <param name="tagvalue">property value</param>
public static void SetProperty(string tag, string tagvalue)
{
if (String.IsNullOrEmpty(tag) || tag[0] != '#')
{
return;
}
if (tagvalue == null)
{
tagvalue = string.Empty;
}
if (tag.Equals("#currentmodule"))
{
try
{
GUIGraphicsContext.form.Text = "MediaPortal - " + tagvalue;
}
catch (Exception ex)
{
Log.Error("PropertyManager: SetProperty {0}", ex.Message);
}
}
bool changed = false;
lock (_properties)
{
string oldValue;
changed = !_properties.TryGetValue(tag, out oldValue) || oldValue != tagvalue; // saves one lookup
//changed = (!_properties.ContainsKey(tag) || _properties[tag] != tagvalue);
if (changed)
{
_properties[tag] = tagvalue;
}
}
if (changed)
{
GUIExpressionManager.InvalidateExpression(tag);
}
if (changed && OnPropertyChanged != null)
{
_isChanged = true;
OnPropertyChanged(tag, tagvalue);
}
}
/// <summary>
/// Parses a property request.
/// </summary>
/// <param name="line">The identification of the propertie (e.g.,#title).</param>
/// <param name="options">Expresson manager processing options.</param>
/// <returns>The value of the property.</returns>
public static string Parse(string line, GUIExpressionManager.ExpressionOptions options)
{
if (line == null)
{
return(string.Empty);
}
line = GUIExpressionManager.Parse(line, options);
if (line.IndexOf('#') > -1)
{
// Matches a property tag and replaces it with the value for that property
// sort the matches descending by the length of their value, to prevent a match named "#selecteditem" replacing "#selecteditem2" in the line
var matches = from Match aMatch in propertyExpr.Matches(line)
orderby aMatch.Value.Length descending
select aMatch.Value;
foreach (string match in matches)
{
line = line.Replace(match, ParseProperty(match));
}
}
return(line);
}
/// <summary>
/// Parses a property request.
/// </summary>
/// <param name="line">The identification of the propertie (e.g.,#title).</param>
/// <param name="options">Expresson manager processing options.</param>
/// <returns>The value of the property.</returns>
public static string Parse(string line, GUIExpressionManager.ExpressionOptions options)
{
if (line == null)
{
return string.Empty;
}
line = GUIExpressionManager.Parse(line, options);
if (line.IndexOf('#') > -1)
{
// Matches a property tag and replaces it with the value for that property
// sort the matches descending by the length of their value, to prevent a match named "#selecteditem" replacing "#selecteditem2" in the line
var matches = from Match aMatch in propertyExpr.Matches(line)
orderby aMatch.Value.Length descending
select aMatch.Value;
foreach (string match in matches)
{
line = line.Replace(match, ParseProperty(match));
}
}
return line;
}