private static void ApplyHighlight(VisualLineElement element, Highlight highlight, double magnify)
{
var trp = element.TextRunProperties;
var foregroundBrush = ColorBrush(highlight.Foreground);
if (foregroundBrush != null) trp.SetForegroundBrush(foregroundBrush);
// Block background highlighting handled by BlockBackgroundRenderer
// Otherwise selection highlight does not work as expected
if (!highlight.Name.Contains("Block"))
{
var backgroundBrush = ColorBrush(highlight.Background);
if (backgroundBrush != null) trp.SetBackgroundBrush(backgroundBrush);
}
if (!string.IsNullOrWhiteSpace(highlight.FontWeight) || !string.IsNullOrWhiteSpace(highlight.FontStyle))
{
var tf = trp.Typeface;
var weight = ConvertFontWeight(highlight.FontWeight) ?? tf.Weight;
var style = ConvertFontStyle(highlight.FontStyle) ?? tf.Style;
var typeFace = new Typeface(tf.FontFamily, style, weight, tf.Stretch);
trp.SetTypeface(typeFace);
}
if (highlight.Underline) trp.SetTextDecorations(TextDecorations.Underline);
if (double.IsNaN(magnify) == false) trp.SetFontRenderingEmSize(trp.FontRenderingEmSize*magnify);
}
/// <summary>
/// Applies a highlighting color to a visual line element.
/// </summary>
protected virtual void ApplyColorToElement(VisualLineElement element, HighlightingColor color)
{
if (color.Foreground != null)
{
Brush b = color.Foreground.GetBrush(CurrentContext);
if (b != null)
element.TextRunProperties.SetForegroundBrush(b);
}
if (color.Background != null)
{
Brush b = color.Background.GetBrush(CurrentContext);
if (b != null)
element.TextRunProperties.SetBackgroundBrush(b);
}
if (color.FontStyle != null || color.FontWeight != null)
{
Typeface tf = element.TextRunProperties.Typeface;
element.TextRunProperties.SetTypeface(new Typeface(
tf.FontFamily,
color.FontStyle ?? tf.Style,
color.FontWeight ?? tf.Weight,
tf.Stretch
));
}
}
private void ApplyColorToElement(VisualLineElement element, HighlightingColor color)
{
if (color.Foreground != null)
{
Brush brush = color.Foreground.GetBrush(base.CurrentContext);
if (brush != null)
{
element.TextRunProperties.SetForegroundBrush(brush);
}
}
if (color.Background != null)
{
Brush brush2 = color.Background.GetBrush(base.CurrentContext);
if (brush2 != null)
{
element.TextRunProperties.SetBackgroundBrush(brush2);
}
}
if (color.FontStyle.HasValue || color.FontWeight.HasValue)
{
Typeface typeface = element.TextRunProperties.Typeface;
element.TextRunProperties.SetTypeface(new Typeface(typeface.FontFamily, color.FontStyle ?? typeface.Style, color.FontWeight ?? typeface.Weight, typeface.Stretch));
}
}
internal static void ApplyColorToElement(VisualLineElement element, HighlightingColor color, ITextRunConstructionContext context)
{
if (color.Foreground != null) {
Brush b = color.Foreground.GetBrush(context);
if (b != null)
element.TextRunProperties.SetForegroundBrush(b);
}
if (color.Background != null) {
Brush b = color.Background.GetBrush(context);
if (b != null)
element.BackgroundBrush = b;
}
if (color.FontStyle != null || color.FontWeight != null) {
Typeface tf = element.TextRunProperties.Typeface;
element.TextRunProperties.SetTypeface(new Typeface(
tf.FontFamily,
color.FontStyle ?? tf.Style,
color.FontWeight ?? tf.Weight,
tf.Stretch
));
}
if(color.Underline ?? false)
element.TextRunProperties.SetTextDecorations(TextDecorations.Underline);
}
/// <summary>
/// Applies a highlighting color to a visual line element.
/// </summary>
protected virtual void ApplyColorToElement(VisualLineElement element, HighlightingColor color)
{
ApplyColorToElement(element, color, CurrentContext);
}
/// <summary>
/// Helper method for splitting this line element into two, correctly updating the
/// <see cref="VisualLength"/>, <see cref="DocumentLength"/>, <see cref="VisualColumn"/>
/// and <see cref="RelativeTextOffset"/> properties.
/// </summary>
/// <param name="firstPart">The element before the split position.</param>
/// <param name="secondPart">The element after the split position.</param>
/// <param name="splitVisualColumn">The split position as visual column.</param>
/// <param name="splitRelativeTextOffset">The split position as text offset.</param>
protected void SplitHelper(VisualLineElement firstPart, VisualLineElement secondPart, int splitVisualColumn, int splitRelativeTextOffset)
{
if (firstPart == null)
throw new ArgumentNullException(nameof(firstPart));
if (secondPart == null)
throw new ArgumentNullException(nameof(secondPart));
int relativeSplitVisualColumn = splitVisualColumn - VisualColumn;
int relativeSplitRelativeTextOffset = splitRelativeTextOffset - RelativeTextOffset;
if (relativeSplitVisualColumn <= 0 || relativeSplitVisualColumn >= VisualLength)
throw new ArgumentOutOfRangeException(nameof(splitVisualColumn), splitVisualColumn, "Value must be between " + (VisualColumn + 1) + " and " + (VisualColumn + VisualLength - 1));
if (relativeSplitRelativeTextOffset < 0 || relativeSplitRelativeTextOffset > DocumentLength)
throw new ArgumentOutOfRangeException(nameof(splitRelativeTextOffset), splitRelativeTextOffset, "Value must be between " + (RelativeTextOffset) + " and " + (RelativeTextOffset + DocumentLength));
int oldVisualLength = VisualLength;
int oldDocumentLength = DocumentLength;
int oldVisualColumn = VisualColumn;
int oldRelativeTextOffset = RelativeTextOffset;
firstPart.VisualColumn = oldVisualColumn;
secondPart.VisualColumn = oldVisualColumn + relativeSplitVisualColumn;
firstPart.RelativeTextOffset = oldRelativeTextOffset;
secondPart.RelativeTextOffset = oldRelativeTextOffset + relativeSplitRelativeTextOffset;
firstPart.VisualLength = relativeSplitVisualColumn;
secondPart.VisualLength = oldVisualLength - relativeSplitVisualColumn;
firstPart.DocumentLength = relativeSplitRelativeTextOffset;
secondPart.DocumentLength = oldDocumentLength - relativeSplitRelativeTextOffset;
if (firstPart.TextRunProperties == null)
firstPart.TextRunProperties = TextRunProperties.Clone();
if (secondPart.TextRunProperties == null)
secondPart.TextRunProperties = TextRunProperties.Clone();
}
void PerformVisualElementConstruction(VisualLineElementGenerator[] generators)
{
TextDocument document = this.Document;
int offset = FirstDocumentLine.Offset;
int currentLineEnd = offset + FirstDocumentLine.Length;
LastDocumentLine = FirstDocumentLine;
int askInterestOffset = 0; // 0 or 1
while (offset + askInterestOffset <= currentLineEnd)
{
int textPieceEndOffset = currentLineEnd;
foreach (VisualLineElementGenerator g in generators)
{
g.cachedInterest = g.GetFirstInterestedOffset(offset + askInterestOffset);
if (g.cachedInterest != -1)
{
if (g.cachedInterest < offset)
{
throw new ArgumentOutOfRangeException(g.GetType().Name + ".GetFirstInterestedOffset",
g.cachedInterest,
"GetFirstInterestedOffset must not return an offset less than startOffset. Return -1 to signal no interest.");
}
if (g.cachedInterest < textPieceEndOffset)
{
textPieceEndOffset = g.cachedInterest;
}
}
}
Debug.Assert(textPieceEndOffset >= offset);
if (textPieceEndOffset > offset)
{
int textPieceLength = textPieceEndOffset - offset;
elements.Add(new VisualLineText(this, textPieceLength));
offset = textPieceEndOffset;
}
// If no elements constructed / only zero-length elements constructed:
// do not asking the generators again for the same location (would cause endless loop)
askInterestOffset = 1;
foreach (VisualLineElementGenerator g in generators)
{
if (g.cachedInterest == offset)
{
VisualLineElement element = g.ConstructElement(offset);
if (element != null)
{
elements.Add(element);
if (element.DocumentLength > 0)
{
// a non-zero-length element was constructed
askInterestOffset = 0;
offset += element.DocumentLength;
if (offset > currentLineEnd)
{
DocumentLine newEndLine = document.GetLineByOffset(offset);
currentLineEnd = newEndLine.Offset + newEndLine.Length;
this.LastDocumentLine = newEndLine;
if (currentLineEnd < offset)
{
throw new InvalidOperationException(
"The VisualLineElementGenerator " + g.GetType().Name +
" produced an element which ends within the line delimiter");
}
}
break;
}
}
}
}
}
}
private void HighlightError(VisualLineElement visualLineElement)
{
visualLineElement.TextRunProperties.SetBackgroundBrush(Brushes.PaleVioletRed);
}
protected void ApplyColorToElement(VisualLineElement element, HighlightingColor color)
{
var style = _themeManager.CurrentTheme.Colors.FirstOrDefault(item => item.Expression.Equals(color.Name, StringComparison.InvariantCultureIgnoreCase));
if (style == null)
style = _defaultStyle;
if (style.Foreground != null)
{
var b = style.GetForegroundBrush();
if (b != null)
element.TextRunProperties.SetForegroundBrush(b);
}
if (style.Background != null)
{
var b = style.GetBackgroundBrush();
if (b != null)
element.TextRunProperties.SetBackgroundBrush(b);
}
if (style.Bold || style.Italic)
{
Typeface tf = element.TextRunProperties.Typeface;
element.TextRunProperties.SetTypeface(new Typeface(
tf.FontFamily,
style.Italic ? FontStyles.Italic : tf.Style,
style.Bold ? FontWeights.Bold : tf.Weight,
tf.Stretch
));
}
}
void HighlightIgnored(VisualLineElement element)
{
element.TextRunProperties.SetForegroundBrush(XamlBindingOptions.IgnoredForegroundColor.ToBrush());
element.TextRunProperties.SetBackgroundBrush(XamlBindingOptions.IgnoredBackgroundColor.ToBrush());
}
void HighlightNamespaceDeclaration(VisualLineElement element)
{
element.TextRunProperties.SetForegroundBrush(XamlBindingOptions.NamespaceDeclarationForegroundColor.ToBrush());
element.TextRunProperties.SetBackgroundBrush(XamlBindingOptions.NamespaceDeclarationBackgroundColor.ToBrush());
}
/// <summary>
/// Metoda określająca sposób kolorowania linii
/// </summary>
/// <param name="element">styl podświetlenia</param>
void ApplyChanges(VisualLineElement element)
{
element.TextRunProperties.SetBackgroundBrush(Brushes.LightSkyBlue);
}
void ApplyChanges(VisualLineElement element)
{
element.TextRunProperties.SetForegroundBrush(Brushes.Black);
element.TextRunProperties.SetBackgroundBrush(Brushes.Red);
}
