/// <summary>
/// Creates a substring of this rich text.
/// </summary>
public RichText Substring(int offset, int length)
{
if (offset == 0 && length == this.Length)
{
return(this);
}
string newText = text.Substring(offset, length);
RichTextModel model = ToRichTextModel();
OffsetChangeMap map = new OffsetChangeMap(2);
map.Add(new OffsetChangeMapEntry(offset + length, text.Length - offset - length, 0));
map.Add(new OffsetChangeMapEntry(0, offset, 0));
model.UpdateOffsets(map);
return(new RichText(newText, model));
}
protected override object CreateText()
{
var location = anchor.Location;
LoggingService.Debug("Creating text for search result (" + location.Line + ", " + location.Column + ") ");
TextBlock textBlock = new TextBlock();
textBlock.FontFamily = new FontFamily(SD.EditorControlService.GlobalOptions.FontFamily);
if (result.DefaultTextColor != null && !IsSelected)
{
if (result.DefaultTextColor.Background != null)
{
textBlock.Background = result.DefaultTextColor.Background.GetBrush(null);
}
if (result.DefaultTextColor.Foreground != null)
{
textBlock.Foreground = result.DefaultTextColor.Foreground.GetBrush(null);
}
}
textBlock.Inlines.Add("(" + location.Line + ", " + location.Column + ")\t");
RichText displayText = result.DisplayText;
if (displayText != null)
{
if (IsSelected)
{
RichTextModel model = displayText.ToRichTextModel();
model.SetForeground(0, displayText.Length, null);
model.SetBackground(0, displayText.Length, null);
displayText = new RichText(displayText.Text, model);
}
textBlock.Inlines.AddRange(displayText.CreateRuns());
}
if (showFileName)
{
textBlock.Inlines.Add(
new Run {
Text = StringParser.Parse("\t${res:MainWindow.Windows.SearchResultPanel.In} ")
+ Path.GetFileName(anchor.FileName) + "(" + Path.GetDirectoryName(anchor.FileName) + ")",
FontStyle = FontStyles.Italic
});
}
return(textBlock);
}
public void AddSignatureBlock(string signature, RichTextModel highlighting = null)
{
var document = new TextDocument(signature);
var richText = highlighting ?? DocumentPrinter.ConvertTextDocumentToRichText(document, new DocumentHighlighter(document, highlightingDefinition)).ToRichTextModel();
var block = new Paragraph();
// HACK: measure width of signature using a TextBlock
// Paragraph sadly does not support TextWrapping.NoWrap
var text = new TextBlock {
FontFamily = GetCodeFont(),
FontSize = DisplaySettingsPanel.CurrentDisplaySettings.SelectedFontSize,
TextAlignment = TextAlignment.Left
};
text.Inlines.AddRange(richText.CreateRuns(document));
text.Measure(new Size(double.PositiveInfinity, double.PositiveInfinity));
this.document.MinPageWidth = Math.Min(text.DesiredSize.Width, MainWindow.Instance.ActualWidth);
block.Inlines.AddRange(richText.CreateRuns(document));
block.FontFamily = GetCodeFont();
block.TextAlignment = TextAlignment.Left;
AddBlock(block);
}
/// <summary>
/// Concatenates the specified rich texts.
/// </summary>
public static RichText Concat(params RichText[] texts)
{
if (texts == null || texts.Length == 0)
{
return(Empty);
}
else if (texts.Length == 1)
{
return(texts[0]);
}
string newText = string.Concat(texts.Select(txt => txt.text));
RichTextModel model = texts[0].ToRichTextModel();
int offset = texts[0].Length;
for (int i = 1; i < texts.Length; i++)
{
model.Append(offset, texts[i].stateChangeOffsets, texts[i].stateChanges);
offset += texts[i].Length;
}
return(new RichText(newText, model));
}
/// <summary>
/// Creates a RichText instance with the given text and RichTextModel.
/// </summary>
/// <param name="text">
/// The text to use in this RichText instance.
/// </param>
/// <param name="model">
/// The model that contains the formatting to use for this RichText instance.
/// <c>model.DocumentLength</c> should correspond to <c>text.Length</c>.
/// This parameter may be null, in which case the RichText instance just holds plain text.
/// </param>
public RichText(string text, RichTextModel model = null)
{
if (text == null)
{
throw new ArgumentNullException("text");
}
this.text = text;
if (model != null)
{
var sections = model.GetHighlightedSections(0, text.Length).ToArray();
stateChangeOffsets = new int[sections.Length];
stateChanges = new HighlightingColor[sections.Length];
for (int i = 0; i < sections.Length; i++)
{
stateChangeOffsets[i] = sections[i].Offset;
stateChanges[i] = sections[i].Color;
}
}
else
{
stateChangeOffsets = new int[] { 0 };
stateChanges = new HighlightingColor[] { HighlightingColor.Empty };
}
}
