/// <inheritdoc/>
public override TextRun CreateTextRun(int startVisualColumn, ITextRunConstructionContext context)
{
if (context == null)
throw new ArgumentNullException(nameof(context));
int relativeOffset = startVisualColumn - VisualColumn;
StringSegment text = context.GetText(context.VisualLine.FirstDocumentLine.Offset + RelativeTextOffset + relativeOffset, DocumentLength - relativeOffset);
return new TextCharacters(text.Text, text.Offset, text.Count, TextRunProperties);
}
/// <inheritdoc/>
public override TextSpan<CultureSpecificCharacterBufferRange> GetPrecedingText(int visualColumnLimit, ITextRunConstructionContext context)
{
if (context == null)
throw new ArgumentNullException(nameof(context));
int relativeOffset = visualColumnLimit - VisualColumn;
StringSegment text = context.GetText(context.VisualLine.FirstDocumentLine.Offset + RelativeTextOffset, relativeOffset);
CharacterBufferRange range = new CharacterBufferRange(text.Text, text.Offset, text.Count);
return new TextSpan<CultureSpecificCharacterBufferRange>(range.Length, new CultureSpecificCharacterBufferRange(TextRunProperties.CultureInfo, range));
}
/// <inheritdoc/>
public override TextRun CreateTextRun(int startVisualColumn, ITextRunConstructionContext context)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
int relativeOffset = startVisualColumn - VisualColumn;
StringSegment text = context.GetText(context.VisualLine.FirstDocumentLine.Offset + RelativeTextOffset + relativeOffset, DocumentLength - relativeOffset);
return(new TextCharacters(text.Text, text.Offset, text.Count, this.TextRunProperties));
}
/// <inheritdoc/>
public override TextSpan <CultureSpecificCharacterBufferRange> GetPrecedingText(int visualColumnLimit, ITextRunConstructionContext context)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
int relativeOffset = visualColumnLimit - VisualColumn;
StringSegment text = context.GetText(context.VisualLine.FirstDocumentLine.Offset + RelativeTextOffset, relativeOffset);
CharacterBufferRange range = new CharacterBufferRange(text.Text, text.Offset, text.Count);
return(new TextSpan <CultureSpecificCharacterBufferRange>(range.Length, new CultureSpecificCharacterBufferRange(this.TextRunProperties.CultureInfo, range)));
}
/// <inheritdoc/>
public override StringRange GetPrecedingText(int visualColumnLimit, ITextRunConstructionContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
var relativeOffset = visualColumnLimit - VisualColumn;
var text = context.GetText(context.VisualLine.FirstDocumentLine.Offset + RelativeTextOffset, relativeOffset);
var range = new StringRange(text.Text, text.Offset, text.Count);
return(range);
}
public override TextRun CreateTextRun(int startVisualColumn, ITextRunConstructionContext context)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
int relativeOffset = startVisualColumn - VisualColumn;
StringSegment text = context.GetText(context.VisualLine.FirstDocumentLine.Offset + RelativeTextOffset + relativeOffset, DocumentLength - relativeOffset);
char[] uppercase = new char[text.Count];
for (int i = 0; i < text.Count; i++)
{
uppercase[i] = char.ToUpper(text.Text[text.Offset + i]);
}
return(new TextCharacters(uppercase, 0, uppercase.Length, this.TextRunProperties));
}
public override TextRun CreateTextRun(int startVisualColumn, ITextRunConstructionContext context)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
int relativeOffset = startVisualColumn - VisualColumn;
StringSegment text = context.GetText(context.VisualLine.FirstDocumentLine.Offset + RelativeTextOffset + relativeOffset, DocumentLength - relativeOffset);
char[] uppercase = new char[text.Count];
for (int i = 0; i < text.Count; i++)
{
uppercase[i] = text.Text[text.Offset + i];
}
if (RelativeTextOffset == 0)
{
if (char.IsWhiteSpace(uppercase[0]))
{
//uppercase[0] = (char)124;
int j = 0;
while (j < text.Count)
{
if (!char.IsWhiteSpace(uppercase[j]))
{
break;
}
if ((j % 4) == 0)
{
uppercase[j] = (char)124;
}
j++;
}
}
}
return(new TextCharacters(uppercase, 0, uppercase.Length, this.TextRunProperties));
}