/////////////////////////////////////////////////////////////////////////////////////////////////////
// PUBLIC PROCEDURES
/////////////////////////////////////////////////////////////////////////////////////////////////////
/// <summary>
/// Returns the tag ranges that intersect with the specified normalized snapshot ranges.
/// </summary>
/// <param name="snapshotRanges">The collection of normalized snapshot ranges.</param>
/// <param name="parameter">An optional parameter that provides contextual information about the tag request.</param>
/// <returns>The tag ranges that intersect with the specified normalized snapshot ranges.</returns>
public override IEnumerable <TagSnapshotRange <CustomTag> > GetTags(NormalizedTextSnapshotRangeCollection snapshotRanges, object parameter)
{
if (snapshotRanges != null)
{
// Loop through the snapshot ranges
foreach (TextSnapshotRange snapshotRange in snapshotRanges)
{
// Get the text of the snapshot range
string text = snapshotRange.Text;
// Look for a regex pattern match
MatchCollection matches = Regex.Matches(text, pattern, RegexOptions.IgnoreCase);
if (matches.Count > 0)
{
// Loop through the matches
foreach (Match match in matches)
{
// Create a tag
CustomTag tag = new CustomTag();
// Yield the tag
yield return(new TagSnapshotRange <CustomTag>(
TextSnapshotRange.FromSpan(snapshotRange.Snapshot, snapshotRange.StartOffset + match.Index, match.Length), tag));
}
}
}
}
}
/////////////////////////////////////////////////////////////////////////////////////////////////////
// PUBLIC PROCEDURES
/////////////////////////////////////////////////////////////////////////////////////////////////////
/// <summary>
/// Returns the tag ranges that intersect with the specified normalized snapshot ranges.
/// </summary>
/// <param name="snapshotRanges">The collection of normalized snapshot ranges.</param>
/// <param name="parameter">An optional parameter that provides contextual information about the tag request.</param>
/// <returns>The tag ranges that intersect with the specified normalized snapshot ranges.</returns>
public override IEnumerable <TagSnapshotRange <ColorPreviewTag> > GetTags(NormalizedTextSnapshotRangeCollection snapshotRanges, object parameter)
{
if (snapshotRanges != null)
{
// Loop through the snapshot ranges
foreach (TextSnapshotRange snapshotRange in snapshotRanges)
{
// Get the text of the snapshot range
string text = snapshotRange.Text;
// Look for a regex pattern match
MatchCollection matches = Regex.Matches(text, this.Pattern, RegexOptions.IgnoreCase);
if (matches.Count > 0)
{
// Loop through the matches
foreach (Match match in matches)
{
// Create a tag
ColorPreviewTag tag = new ColorPreviewTag();
tag.Color = UIColor.FromWebColor(match.Value).ToColor();
// Ensure full alpha
if (tag.Color.A < 255)
{
tag.Color = Color.FromArgb(255, tag.Color.R, tag.Color.G, tag.Color.B);
}
// Yield the tag
yield return(new TagSnapshotRange <ColorPreviewTag>(
TextSnapshotRange.FromSpan(snapshotRange.Snapshot, snapshotRange.StartOffset + match.Index, match.Length), tag));
}
}
}
}
}