private static TextLineRun CreateTextLineRun(StringRange stringRange, TextRun textRun, int length, TextParagraphProperties paragraphProperties)
{
var run = new TextLineRun
{
StringRange = stringRange,
TextRun = textRun,
Length = length
};
var tf = run.Typeface;
var formattedText = new FormattedText
{
Text = stringRange.ToString(run.Length),
Typeface = new Typeface(tf.FontFamily, tf.Style, tf.Weight),
FontSize = run.FontSize
};
run._formattedText = formattedText;
var size = formattedText.Bounds.Size;
run._formattedTextSize = size;
run.Width = size.Width;
run._glyphWidths = new GlyphWidths(
run.StringRange,
run.Typeface.GlyphTypeface,
run.FontSize,
paragraphProperties.DefaultIncrementalTab);
return(run);
}
internal static TextLineRun CreateRunForText(StringRange stringRange, TextRun textRun, double widthLeft, bool emergencyWrap, bool breakOnTabs)
{
var run = new TextLineRun
{
StringRange = stringRange,
TextRun = textRun,
Length = textRun.Length
};
var tf = run.Typeface;
var formattedText = new FormattedText
{
Text = stringRange.ToString(),
Typeface = new Typeface(tf.FontFamily, tf.Style, tf.Weight),
FontSize = run.FontSize
};
run._formattedText = formattedText;
var size = formattedText.Bounds.Size;
run._formattedTextSize = size;
run.Width = size.Width;
run._glyphWidths = new GlyphWidths(
run.StringRange,
run.Typeface.GlyphTypeface,
run.FontSize);
return(run);
}
internal static TextLineRun CreateRunForText(StringRange stringRange, TextRun textRun, double widthLeft, bool emergencyWrap, bool breakOnTabs)
{
var run = new TextLineRun
{
StringRange = stringRange,
TextRun = textRun,
Length = textRun.Length
};
var formattedText = new FormattedText
{
Text = stringRange.ToString(),
Typeface = new Typeface(run.Typeface, run.FontSize)
};
run._formattedText = formattedText;
var size = formattedText.Measure();
run._formattedTextSize = size;
run.Width = size.Width;
run.SetGlyphWidths();
return(run);
}
internal static TextLineRun CreateRunForText(StringRange stringRange, TextRun textRun, double widthLeft, bool emergencyWrap, bool breakOnTabs)
{
var tf = textRun.Properties.Typeface;
var formattedText = new FormattedText
{
Text = stringRange.ToString(),
Typeface = new Typeface(tf.FontFamily, tf.Style, tf.Weight),
FontSize = textRun.Properties.FontSize
};
double x = 0;
int offset = 0;
int lastWhitespaceIndex = -1;
//Measure the width of the text that would fit in the space left
while (x <= widthLeft && offset < textRun.Length)
{
x += formattedText.HitTestTextPosition(offset).Width;
if (x <= widthLeft)
{
if (char.IsWhiteSpace(stringRange[offset]))
{
lastWhitespaceIndex = offset;
}
offset++;
}
}
//Wrap at the last letter if there was no whitespace in the run
if (lastWhitespaceIndex == -1 && x > widthLeft)
{
lastWhitespaceIndex = offset;
}
var run = new TextLineRun
{
StringRange = stringRange,
TextRun = textRun,
Length = textRun.Length,
LastWhitespaceIndex = lastWhitespaceIndex
};
run._formattedText = formattedText;
var size = formattedText.Bounds.Size;
run._formattedTextSize = size;
run.Width = size.Width;
run.SetGlyphWidths();
return(run);
}
public void TrimEnd(int trimLength)
{
Length = Math.Max(Length - trimLength, 1);
StringRange = new StringRange(StringRange.ToString(), 0, Length);
_formattedText = new FormattedText()
{
Text = StringRange.ToString(),
Typeface = _formattedText.Typeface,
FontSize = _formattedText.FontSize
};
var size = _formattedText.Bounds.Size;
_formattedTextSize = size;
Width = size.Width;
}
