void OnTextPropertiesChanged()
{
OnTextPropertiesChangedCore();
useDisplayMode = wpfTextViewHost.TextView.FormattedLineSource.UseDisplayMode;
var textFormattingMode = useDisplayMode ? TextFormattingMode.Display : TextFormattingMode.Ideal;
var defaultProps = GetDefaultTextFormattingRunProperties();
if (defaultProps is null)
{
return;
}
var brush = defaultProps.BackgroundBrush ?? Brushes.Transparent;
if (brush.CanFreeze)
{
brush.Freeze();
}
Background = brush;
#pragma warning disable CS0618 // Type or member is obsolete
var ft = new FormattedText("8", defaultProps.CultureInfo, FlowDirection.LeftToRight, defaultProps.Typeface, defaultProps.FontRenderingEmSize, defaultProps.ForegroundBrush, null, textFormattingMode);
#pragma warning restore CS0618 // Type or member is obsolete
currentMaxLineDigits = GetMaxLineDigits();
int maxLineNumberValue = Math.Min(int.MaxValue, (int)(Math.Pow(10, currentMaxLineDigits) - 1));
// Just in case non-digits are part of the string, calculate max string length
var lineNumberString = GetLineNumberString(maxLineNumberValue);
double leftMarginWidth = ft.Width;
double rightMarginWidth = ft.Width;
double width = leftMarginWidth + rightMarginWidth + ft.Width * lineNumberString.Length;
lineNumberTextRight = width - rightMarginWidth;
Width = width;
ClearLines();
defaultTextParagraphProperties = new TextFormattingParagraphProperties(defaultProps);
textFormatter = textFormatterProvider.Create(useDisplayMode);
}
public FormattedLineSource(ITextFormatterProvider textFormatterProvider, ITextParagraphPropertiesFactoryService textParagraphPropertiesFactoryService, ITextSnapshot sourceTextSnapshot, ITextSnapshot visualBufferSnapshot, int tabSize, double baseIndent, double wordWrapWidth, double maxAutoIndent, bool useDisplayMode, IClassifier aggregateClassifier, ITextAndAdornmentSequencer sequencer, IClassificationFormatMap classificationFormatMap, bool isViewWrapEnabled)
{
if (textFormatterProvider == null)
{
throw new ArgumentNullException(nameof(textFormatterProvider));
}
if (sourceTextSnapshot == null)
{
throw new ArgumentNullException(nameof(sourceTextSnapshot));
}
if (visualBufferSnapshot == null)
{
throw new ArgumentNullException(nameof(visualBufferSnapshot));
}
if (aggregateClassifier == null)
{
throw new ArgumentNullException(nameof(aggregateClassifier));
}
if (sequencer == null)
{
throw new ArgumentNullException(nameof(sequencer));
}
if (classificationFormatMap == null)
{
throw new ArgumentNullException(nameof(classificationFormatMap));
}
if (tabSize <= 0)
{
throw new ArgumentOutOfRangeException(nameof(tabSize));
}
if (sourceTextSnapshot != visualBufferSnapshot)
{
throw new NotSupportedException("Text snapshot must be identical to visual snapshot");
}
this.textFormatter = textFormatterProvider.Create(useDisplayMode);
this.formattedTextCache = new FormattedTextCache(useDisplayMode);
this.textParagraphPropertiesFactoryService = textParagraphPropertiesFactoryService;
SourceTextSnapshot = sourceTextSnapshot;
TopTextSnapshot = visualBufferSnapshot;
UseDisplayMode = useDisplayMode;
TabSize = tabSize;
BaseIndentation = baseIndent;
WordWrapWidth = wordWrapWidth;
MaxAutoIndent = Math.Round(maxAutoIndent);
ColumnWidth = formattedTextCache.GetColumnWidth(classificationFormatMap.DefaultTextProperties);
this.wrapGlyphWidth = isViewWrapEnabled ? 1.5 * ColumnWidth : 0;
LineHeight = WpfTextViewLine.DEFAULT_TOP_SPACE + WpfTextViewLine.DEFAULT_BOTTOM_SPACE + formattedTextCache.GetLineHeight(classificationFormatMap.DefaultTextProperties);
TextHeightAboveBaseline = formattedTextCache.GetTextHeightAboveBaseline(classificationFormatMap.DefaultTextProperties);
TextHeightBelowBaseline = formattedTextCache.GetTextHeightBelowBaseline(classificationFormatMap.DefaultTextProperties);
TextAndAdornmentSequencer = textAndAdornmentSequencer;
this.aggregateClassifier = aggregateClassifier;
this.textAndAdornmentSequencer = sequencer;
this.classificationFormatMap = classificationFormatMap;
this.defaultTextParagraphProperties = new TextFormattingParagraphProperties(classificationFormatMap.DefaultTextProperties, ColumnWidth * TabSize);
}
public FormattedLineSource(ITextFormatterProvider textFormatterProvider, ITextParagraphPropertiesFactoryService textParagraphPropertiesFactoryService, ITextSnapshot sourceTextSnapshot, ITextSnapshot visualBufferSnapshot, int tabSize, double baseIndent, double wordWrapWidth, double maxAutoIndent, bool useDisplayMode, IClassifier aggregateClassifier, ITextAndAdornmentSequencer sequencer, IClassificationFormatMap classificationFormatMap, bool isViewWrapEnabled) {
if (textFormatterProvider == null)
throw new ArgumentNullException(nameof(textFormatterProvider));
if (sourceTextSnapshot == null)
throw new ArgumentNullException(nameof(sourceTextSnapshot));
if (visualBufferSnapshot == null)
throw new ArgumentNullException(nameof(visualBufferSnapshot));
if (aggregateClassifier == null)
throw new ArgumentNullException(nameof(aggregateClassifier));
if (sequencer == null)
throw new ArgumentNullException(nameof(sequencer));
if (classificationFormatMap == null)
throw new ArgumentNullException(nameof(classificationFormatMap));
if (tabSize <= 0)
throw new ArgumentOutOfRangeException(nameof(tabSize));
if (sourceTextSnapshot != visualBufferSnapshot)
throw new NotSupportedException("Text snapshot must be identical to visual snapshot");
textFormatter = textFormatterProvider.Create(useDisplayMode);
formattedTextCache = new FormattedTextCache(useDisplayMode);
this.textParagraphPropertiesFactoryService = textParagraphPropertiesFactoryService;
SourceTextSnapshot = sourceTextSnapshot;
TopTextSnapshot = visualBufferSnapshot;
UseDisplayMode = useDisplayMode;
TabSize = tabSize;
BaseIndentation = baseIndent;
WordWrapWidth = wordWrapWidth;
MaxAutoIndent = Math.Round(maxAutoIndent);
ColumnWidth = formattedTextCache.GetColumnWidth(classificationFormatMap.DefaultTextProperties);
wrapGlyphWidth = isViewWrapEnabled ? 1.5 * ColumnWidth : 0;
LineHeight = WpfTextViewLine.DEFAULT_TOP_SPACE + WpfTextViewLine.DEFAULT_BOTTOM_SPACE + formattedTextCache.GetLineHeight(classificationFormatMap.DefaultTextProperties);
TextHeightAboveBaseline = formattedTextCache.GetTextHeightAboveBaseline(classificationFormatMap.DefaultTextProperties);
TextHeightBelowBaseline = formattedTextCache.GetTextHeightBelowBaseline(classificationFormatMap.DefaultTextProperties);
TextAndAdornmentSequencer = sequencer;
this.aggregateClassifier = aggregateClassifier;
this.classificationFormatMap = classificationFormatMap;
defaultTextParagraphProperties = new TextFormattingParagraphProperties(classificationFormatMap.DefaultTextProperties, ColumnWidth * TabSize);
}