// Token: 0x06006609 RID: 26121 RVA: 0x001CB1DC File Offset: 0x001C93DC
private TextRun HandleInlineObject(StaticTextPointer position, int dcp)
{
DependencyObject dependencyObject = position.GetAdjacentElement(LogicalDirection.Forward) as DependencyObject;
TextRun result;
if (dependencyObject is UIElement)
{
TextRunProperties textProps = new TextProperties(dependencyObject, position, true, true, base.PixelsPerDip);
result = new InlineObject(dcp, TextContainerHelper.EmbeddedObjectLength, (UIElement)dependencyObject, textProps, this._owner);
}
else
{
result = this.HandleElementEndEdge(position);
}
return(result);
}
//-------------------------------------------------------------------
//
// Private Methods
//
//-------------------------------------------------------------------
#region Private Methods
// ------------------------------------------------------------------
// Fetch the next run at text position.
//
// position - current position in the text array
// ------------------------------------------------------------------
private TextRun HandleText(StaticTextPointer position)
{
DependencyObject element;
StaticTextPointer endOfRunPosition;
Debug.Assert(position.GetPointerContext(LogicalDirection.Forward) == TextPointerContext.Text, "TextPointer does not point to characters.");
if (position.Parent != null)
{
element = position.Parent;
}
else
{
element = _owner;
}
// Extract the aggregated properties into something that the textrun can use.
//
TextRunProperties textProps = new TextProperties(element, position, false /* inline objects */, true /* get background */);
// Calculate the end of the run by finding either:
// a) the next intersection of highlight ranges, or
// b) the natural end of this textrun
endOfRunPosition = _owner.Highlights.GetNextPropertyChangePosition(position, LogicalDirection.Forward);
// Clamp the text run at an arbitrary limit, so we don't make
// an unbounded allocation.
if (position.GetOffsetToPosition(endOfRunPosition) > 4096)
{
endOfRunPosition = position.CreatePointer(4096);
}
// Get character buffer for the text run.
char[] textBuffer = new char[position.GetOffsetToPosition(endOfRunPosition)];
// Copy characters from text run into buffer. Note the actual number of characters copied,
// which may be different than the buffer's length. Buffer length only specifies the maximum
// number of characters
int charactersCopied = position.GetTextInRun(LogicalDirection.Forward, textBuffer, 0, textBuffer.Length);
// Create text run, using characters copied as length
return(new TextCharacters(textBuffer, 0, charactersCopied, textProps));
}
// ------------------------------------------------------------------
// Fetch the next run at UIElment position.
//
// position - current position in the text array
// dcp - current position in the text array
// ------------------------------------------------------------------
private TextRun HandleInlineObject(StaticTextPointer position, int dcp)
{
Debug.Assert(position.GetPointerContext(LogicalDirection.Forward) == TextPointerContext.EmbeddedElement, "TextPointer does not point to embedded object.");
TextRun run = null;
DependencyObject element = position.GetAdjacentElement(LogicalDirection.Forward) as DependencyObject;
if (element is UIElement)
{
// Need to Handle visibility collapsed.
TextRunProperties textProps = new TextProperties(element, position, true /* inline objects */, true /* get background */, PixelsPerDip);
// Create object run.
run = new InlineObject(dcp, TextContainerHelper.EmbeddedObjectLength, (UIElement)element, textProps, _owner);
}
else
{
// If the embedded object is of an unknown type (not UIElement),
// treat it as element edge.
run = HandleElementEndEdge(position);
}
return(run);
}
// Token: 0x06006606 RID: 26118 RVA: 0x001CAF70 File Offset: 0x001C9170
private TextRun HandleText(StaticTextPointer position)
{
DependencyObject target;
if (position.Parent != null)
{
target = position.Parent;
}
else
{
target = this._owner;
}
TextRunProperties textRunProperties = new TextProperties(target, position, false, true, base.PixelsPerDip);
StaticTextPointer position2 = this._owner.Highlights.GetNextPropertyChangePosition(position, LogicalDirection.Forward);
if (position.GetOffsetToPosition(position2) > 4096)
{
position2 = position.CreatePointer(4096);
}
char[] array = new char[position.GetOffsetToPosition(position2)];
int textInRun = position.GetTextInRun(LogicalDirection.Forward, array, 0, array.Length);
return(new TextCharacters(array, 0, textInRun, textRunProperties));
}
// Copy constructor, with override for default TextDecorationCollection value.
internal TextProperties(TextProperties source, TextDecorationCollection textDecorations)
{
_backgroundBrush = source._backgroundBrush;
_typeface = source._typeface;
_fontSize = source._fontSize;
_foreground = source._foreground;
_textEffects = source._textEffects;
_cultureInfo = source._cultureInfo;
_numberSubstitution = source._numberSubstitution;
_typographyProperties = source._typographyProperties;
_baselineAlignment = source._baselineAlignment;
_textDecorations = textDecorations;
}
//-------------------------------------------------------------------
//
// Private Methods
//
//-------------------------------------------------------------------
#region Private Methods
/// <summary>
/// Fetch the next run at text position.
/// </summary>
private TextRun HandleText(StaticTextPointer position)
{
// Calculate the end of the run by finding either:
// a) the next intersection of highlight ranges, or
// b) the natural end of this textrun
StaticTextPointer endOfRunPosition = _owner.Host.TextContainer.Highlights.GetNextPropertyChangePosition(position, LogicalDirection.Forward);
// Clamp the text run at an arbitrary limit, so we don't make
// an unbounded allocation.
if (position.GetOffsetToPosition(endOfRunPosition) > 4096)
{
endOfRunPosition = position.CreatePointer(4096);
}
// Factor in any speller error squiggles on the run.
TextDecorationCollection highlightDecorations = position.TextContainer.Highlights.GetHighlightValue(position, LogicalDirection.Forward, typeof(SpellerHighlightLayer)) as TextDecorationCollection;
TextRunProperties properties;
if (highlightDecorations == null)
{
properties = _lineProperties.DefaultTextRunProperties;
}
else
{
if (_spellerErrorProperties == null)
{
_spellerErrorProperties = new TextProperties((TextProperties)_lineProperties.DefaultTextRunProperties, highlightDecorations);
}
properties = _spellerErrorProperties;
}
// Get character buffer for the text run.
char[] textBuffer = new char[position.GetOffsetToPosition(endOfRunPosition)];
// Copy characters from text run into buffer. Since we are dealing with plain text content,
// we expect to get all the characters from position to endOfRunPosition.
int charactersCopied = position.GetTextInRun(LogicalDirection.Forward, textBuffer, 0, textBuffer.Length);
Invariant.Assert(charactersCopied == textBuffer.Length);
// Create text run, using characters copied as length
return new TextCharacters(textBuffer, 0, charactersCopied, properties);
}
// -----------------------------------------------------------------
// Fetch the next run at UIElment position.
//
// position - current position in the text array
// dcp - current position in the text array
// -----------------------------------------------------------------
private TextRun HandleInlineObject(StaticTextPointer position, int dcp)
{
Debug.Assert(position.GetPointerContext(LogicalDirection.Forward) == TextPointerContext.EmbeddedElement, "TextPointer does not point to embedded object.");
TextRun run = null;
DependencyObject element = position.GetAdjacentElement(LogicalDirection.Forward) as DependencyObject;
if (element is UIElement)
{
//
TextRunProperties textProps = new TextProperties(element, position, true /* inline objects */, true /* get background */);
// Create object run.
run = new InlineObject(dcp, TextContainerHelper.EmbeddedObjectLength, (UIElement)element, textProps, _owner);
}
else
{
// If the embedded object is of an unknown type (not UIElement),
// treat it as element edge.
run = HandleElementEndEdge(position);
}
return run;
}
// ------------------------------------------------------------------
// Fetch the next run at element open edge position.
//
// position - current position in the text array
// ------------------------------------------------------------------
private TextRun HandleElementStartEdge(StaticTextPointer position)
{
Debug.Assert(position.GetPointerContext(LogicalDirection.Forward) == TextPointerContext.ElementStart, "TextPointer does not point to element start edge.");
//
TextRun run = null;
TextElement element = (TextElement)position.GetAdjacentElement(LogicalDirection.Forward);
Debug.Assert(element != null, "Cannot use ITextContainer that does not provide TextElement instances.");
if (element is LineBreak)
{
run = new TextEndOfLine(_elementEdgeCharacterLength * 2);
}
else if (element.IsEmpty)
{
// Empty TextElement should affect line metrics.
// TextFormatter does not support this feature right now, so as workaround
// TextRun with ZERO WIDTH SPACE is used.
TextRunProperties textProps = new TextProperties(element, position, false /* inline objects */, true /* get background */);
char[] textBuffer = new char[_elementEdgeCharacterLength * 2];
textBuffer[0] = (char)0x200B;
textBuffer[1] = (char)0x200B;
run = new TextCharacters(textBuffer, 0, textBuffer.Length, textProps);
}
else
{
Inline inline = element as Inline;
if (inline == null)
{
run = new TextHidden(_elementEdgeCharacterLength);
}
else
{
DependencyObject parent = inline.Parent;
FlowDirection inlineFlowDirection = inline.FlowDirection;
FlowDirection parentFlowDirection = inlineFlowDirection;
if(parent != null)
{
parentFlowDirection = (FlowDirection)parent.GetValue(FrameworkElement.FlowDirectionProperty);
}
TextDecorationCollection inlineTextDecorations = DynamicPropertyReader.GetTextDecorations(inline);
if (inlineFlowDirection != parentFlowDirection)
{
// Inline's flow direction is different from its parent. Need to create new TextSpanModifier with flow direction
if (inlineTextDecorations == null || inlineTextDecorations.Count == 0)
{
run = new TextSpanModifier(
_elementEdgeCharacterLength,
null,
null,
inlineFlowDirection
);
}
else
{
run = new TextSpanModifier(
_elementEdgeCharacterLength,
inlineTextDecorations,
inline.Foreground,
inlineFlowDirection
);
}
}
else
{
if (inlineTextDecorations == null || inlineTextDecorations.Count == 0)
{
run = new TextHidden(_elementEdgeCharacterLength);
}
else
{
run = new TextSpanModifier(
_elementEdgeCharacterLength,
inlineTextDecorations,
inline.Foreground
);
}
}
}
}
return run;
}
// Reads the current (interesting) property values on the owning TextBox.
private LineProperties GetLineProperties()
{
TextProperties defaultTextProperties = new TextProperties((Control)_host, _host.IsTypographyDefaultValue);
// Pass page width and height as double.MaxValue when creating LineProperties, since TextBox does not restrict
// TextIndent or LineHeight.
return new LineProperties((Control)_host, (Control)_host, defaultTextProperties, null, this.CalculatedTextAlignment);
}
// Token: 0x06006660 RID: 26208 RVA: 0x001CC120 File Offset: 0x001CA320
internal LineProperties(DependencyObject element, DependencyObject contentHost, TextProperties defaultTextProperties, MarkerProperties markerProperties, TextAlignment textAlignment)
{
this._defaultTextProperties = defaultTextProperties;
this._markerProperties = ((markerProperties != null) ? markerProperties.GetTextMarkerProperties(this) : null);
this._flowDirection = (FlowDirection)element.GetValue(Block.FlowDirectionProperty);
this._textAlignment = textAlignment;
this._lineHeight = (double)element.GetValue(Block.LineHeightProperty);
this._textIndent = (double)element.GetValue(Paragraph.TextIndentProperty);
this._lineStackingStrategy = (LineStackingStrategy)element.GetValue(Block.LineStackingStrategyProperty);
this._textWrapping = TextWrapping.Wrap;
this._textTrimming = TextTrimming.None;
if (contentHost is TextBlock || contentHost is ITextBoxViewHost)
{
this._textWrapping = (TextWrapping)contentHost.GetValue(TextBlock.TextWrappingProperty);
this._textTrimming = (TextTrimming)contentHost.GetValue(TextBlock.TextTrimmingProperty);
return;
}
if (contentHost is FlowDocument)
{
this._textWrapping = ((FlowDocument)contentHost).TextWrapping;
}
}
/// <summary>
/// Fetch the next run at embedded object position.
/// </summary>
/// <param name="dcp">
/// Character offset of this run.
/// </param>
/// <param name="position">
/// Current position in the text array.
/// </param>
protected TextRun HandleEmbeddedObject(int dcp, StaticTextPointer position)
{
Invariant.Assert(position.GetPointerContext(LogicalDirection.Forward) == TextPointerContext.EmbeddedElement, "TextPointer does not point to embedded object.");
TextRun run = null;
DependencyObject embeddedObject = position.GetAdjacentElement(LogicalDirection.Forward) as DependencyObject;
if (embeddedObject is UIElement)
{
// Extract the aggregated properties into something that the textrun can use.
TextRunProperties textProps = new TextProperties(embeddedObject, position, true /* inline objects */, true /* get background */);
// Create inline object run.
run = new InlineObjectRun(TextContainerHelper.EmbeddedObjectLength, (UIElement)embeddedObject, textProps, _paraClient.Paragraph as TextParagraph);
}
else
{
// If the embedded object is of an unknown type, treat it as hidden content.
run = new TextHidden(TextContainerHelper.EmbeddedObjectLength);
}
return run;
}
/// <summary>
/// Constructor.
/// </summary>
internal LineProperties(
DependencyObject element,
DependencyObject contentHost,
TextProperties defaultTextProperties,
MarkerProperties markerProperties,
TextAlignment textAlignment)
{
_defaultTextProperties = defaultTextProperties;
_markerProperties = (markerProperties != null) ? markerProperties.GetTextMarkerProperties(this) : null;
_flowDirection = (FlowDirection)element.GetValue(Block.FlowDirectionProperty);
_textAlignment = textAlignment;
_lineHeight = (double)element.GetValue(Block.LineHeightProperty);
_textIndent = (double)element.GetValue(Paragraph.TextIndentProperty);
_lineStackingStrategy = (LineStackingStrategy)element.GetValue(Block.LineStackingStrategyProperty);
_textWrapping = TextWrapping.Wrap;
_textTrimming = TextTrimming.None;
if (contentHost is TextBlock || contentHost is ITextBoxViewHost)
{
// NB: we intentially don't try to find the "PropertyOwner" of
// a FlowDocument here. TextWrapping has a hard-coded
// value SetValue'd when a FlowDocument is hosted by a TextBoxBase.
_textWrapping = (TextWrapping)contentHost.GetValue(TextBlock.TextWrappingProperty);
_textTrimming = (TextTrimming)contentHost.GetValue(TextBlock.TextTrimmingProperty);
}
else if (contentHost is FlowDocument)
{
_textWrapping = ((FlowDocument)contentHost).TextWrapping;
}
}
/// <summary>
/// Constructor.
/// </summary>
internal LineProperties(
DependencyObject element,
DependencyObject contentHost,
TextProperties defaultTextProperties,
MarkerProperties markerProperties)
: this(element, contentHost, defaultTextProperties, markerProperties, (TextAlignment)element.GetValue(Block.TextAlignmentProperty))
{
}
// ------------------------------------------------------------------
// Refetch and cache line properties, if needed.
// ------------------------------------------------------------------
private LineProperties GetLineProperties()
{
// For default text properties always set background to null.
// REASON: If element associated with the text run is TextBlock element, ignore background
// brush, because it is handled outside as FrameworkElement's background.
TextProperties defaultTextProperties = new TextProperties(this, this.IsTypographyDefaultValue);
// Do not allow hyphenation for plain Text so always pass null for IHyphenate.
// Pass page width and height as double.MaxValue when creating LineProperties, since TextBlock does not restrict
// TextIndent or LineHeight
LineProperties lineProperties = new LineProperties(this, this, defaultTextProperties, null);
bool isHyphenationEnabled = (bool) this.GetValue(IsHyphenationEnabledProperty);
if(isHyphenationEnabled)
{
lineProperties.Hyphenator = EnsureHyphenator();
}
return lineProperties;
}
// ------------------------------------------------------------------
// Fetch the next run at element open edge position.
//
// position - current position in the text array
// ------------------------------------------------------------------
private TextRun HandleElementStartEdge(StaticTextPointer position)
{
Debug.Assert(position.GetPointerContext(LogicalDirection.Forward) == TextPointerContext.ElementStart, "TextPointer does not point to element start edge.");
//
TextRun run = null;
TextElement element = (TextElement)position.GetAdjacentElement(LogicalDirection.Forward);
Debug.Assert(element != null, "Cannot use ITextContainer that does not provide TextElement instances.");
if (element is LineBreak)
{
run = new TextEndOfLine(_elementEdgeCharacterLength * 2);
}
else if (element.IsEmpty)
{
// Empty TextElement should affect line metrics.
// TextFormatter does not support this feature right now, so as workaround
// TextRun with ZERO WIDTH SPACE is used.
TextRunProperties textProps = new TextProperties(element, position, false /* inline objects */, true /* get background */);
char[] textBuffer = new char[_elementEdgeCharacterLength * 2];
textBuffer[0] = (char)0x200B;
textBuffer[1] = (char)0x200B;
run = new TextCharacters(textBuffer, 0, textBuffer.Length, textProps);
}
else
{
Inline inline = element as Inline;
if (inline == null)
{
run = new TextHidden(_elementEdgeCharacterLength);
}
else
{
DependencyObject parent = inline.Parent;
FlowDirection inlineFlowDirection = inline.FlowDirection;
FlowDirection parentFlowDirection = inlineFlowDirection;
if (parent != null)
{
parentFlowDirection = (FlowDirection)parent.GetValue(FrameworkElement.FlowDirectionProperty);
}
TextDecorationCollection inlineTextDecorations = DynamicPropertyReader.GetTextDecorations(inline);
if (inlineFlowDirection != parentFlowDirection)
{
// Inline's flow direction is different from its parent. Need to create new TextSpanModifier with flow direction
if (inlineTextDecorations == null || inlineTextDecorations.Count == 0)
{
run = new TextSpanModifier(
_elementEdgeCharacterLength,
null,
null,
inlineFlowDirection
);
}
else
{
run = new TextSpanModifier(
_elementEdgeCharacterLength,
inlineTextDecorations,
inline.Foreground,
inlineFlowDirection
);
}
}
else
{
if (inlineTextDecorations == null || inlineTextDecorations.Count == 0)
{
run = new TextHidden(_elementEdgeCharacterLength);
}
else
{
run = new TextSpanModifier(
_elementEdgeCharacterLength,
inlineTextDecorations,
inline.Foreground
);
}
}
}
}
return(run);
}
/// <summary>
/// Return next TextRun at element edge start position
/// </summary>
/// <param name="position">
/// Current position in text array
/// </param>
protected TextRun HandleElementStartEdge(StaticTextPointer position)
{
Invariant.Assert(position.GetPointerContext(LogicalDirection.Forward) == TextPointerContext.ElementStart, "TextPointer does not point to element start edge.");
//
TextRun run = null;
TextElement element = (TextElement)position.GetAdjacentElement(LogicalDirection.Forward);
Debug.Assert(element != null, "Cannot use ITextContainer that does not provide TextElement instances.");
Invariant.Assert(!(element is Block), "We do not expect any Blocks inside Paragraphs");
// Treat figure and floaters as special hidden runs.
if (element is Figure || element is Floater)
{
// Get the length of the element
int cch = TextContainerHelper.GetElementLength(_paraClient.Paragraph.StructuralCache.TextContainer, element);
// Create special hidden run.
run = new FloatingRun(cch, element is Figure);
if (element is Figure)
{
_hasFigures = true;
}
else
{
_hasFloaters = true;
}
}
else if (element is LineBreak)
{
int cch = TextContainerHelper.GetElementLength(_paraClient.Paragraph.StructuralCache.TextContainer, element);
run = new LineBreakRun(cch, PTS.FSFLRES.fsflrSoftBreak);
}
else if (element.IsEmpty)
{
// Empty TextElement should affect line metrics.
// TextFormatter does not support this feature right now, so as workaround
// TextRun with ZERO WIDTH SPACE is used.
TextProperties textProps = new TextProperties(element, position, false /* inline objects */, true /* get background */);
char[] textBuffer = new char[_elementEdgeCharacterLength * 2];
// Assert that _elementEdgeCharacterLength is 1 before we use hard-coded indices
Invariant.Assert(_elementEdgeCharacterLength == 1, "Expected value of _elementEdgeCharacterLength is 1");
textBuffer[0] = (char)0x200B;
textBuffer[1] = (char)0x200B;
run = new TextCharacters(textBuffer, 0, textBuffer.Length, textProps);
}
else
{
Inline inline = (Inline) element;
DependencyObject parent = inline.Parent;
FlowDirection inlineFlowDirection = inline.FlowDirection;
FlowDirection parentFlowDirection = inlineFlowDirection;
TextDecorationCollection inlineTextDecorations = DynamicPropertyReader.GetTextDecorations(inline);
if(parent != null)
{
parentFlowDirection = (FlowDirection)parent.GetValue(FrameworkElement.FlowDirectionProperty);
}
if (inlineFlowDirection != parentFlowDirection)
{
// Inline's flow direction is different from its parent. Need to create new TextSpanModifier with flow direction
if (inlineTextDecorations == null || inlineTextDecorations.Count == 0)
{
run = new TextSpanModifier(
_elementEdgeCharacterLength,
null,
null,
inlineFlowDirection
);
}
else
{
run = new TextSpanModifier(
_elementEdgeCharacterLength,
inlineTextDecorations,
inline.Foreground,
inlineFlowDirection
);
}
}
else
{
if (inlineTextDecorations == null || inlineTextDecorations.Count == 0)
{
run = new TextHidden(_elementEdgeCharacterLength);
}
else
{
run = new TextSpanModifier(
_elementEdgeCharacterLength,
inlineTextDecorations,
inline.Foreground
);
}
}
}
return run;
}
internal override void ValidateVisual(PTS.FSKUPDATE fskupdInherited)
{
// Query paragraph details
PTS.FSSUBTRACKDETAILS subtrackDetails;
PTS.Validate(PTS.FsQuerySubtrackDetails(PtsContext.Context, _paraHandle.Value, out subtrackDetails));
// Draw border and background info.
MbpInfo mbp = MbpInfo.FromElement(Paragraph.Element);
if (ThisFlowDirection != PageFlowDirection)
{
mbp.MirrorBP();
}
uint fswdir = PTS.FlowDirectionToFswdir((FlowDirection)Paragraph.Element.GetValue(FrameworkElement.FlowDirectionProperty));
Brush backgroundBrush = (Brush)Paragraph.Element.GetValue(TextElement.BackgroundProperty);
TextProperties textProperties = new TextProperties(Paragraph.Element, StaticTextPointer.Null, false /* inline objects */, false /* get background */);
// There might be possibility to get empty sub-track, skip the sub-track in such case.
if (subtrackDetails.cParas != 0)
{
PTS.FSPARADESCRIPTION [] arrayParaDesc;
PtsHelper.ParaListFromSubtrack(PtsContext, _paraHandle.Value, ref subtrackDetails, out arrayParaDesc);
using(DrawingContext ctx = _visual.RenderOpen())
{
_visual.DrawBackgroundAndBorderIntoContext(ctx, backgroundBrush, mbp.BorderBrush, mbp.Border, _rect.FromTextDpi(), IsFirstChunk, IsLastChunk);
// Get list of paragraphs
ListMarkerLine listMarkerLine = new ListMarkerLine(Paragraph.StructuralCache.TextFormatterHost, this);
int indexFirstParaInSubtrack = 0;
for(int index = 0; index < subtrackDetails.cParas; index++)
{
List list = Paragraph.Element as List;
BaseParaClient listItemParaClient = PtsContext.HandleToObject(arrayParaDesc[index].pfsparaclient) as BaseParaClient;
PTS.ValidateHandle(listItemParaClient);
if(index == 0)
{
indexFirstParaInSubtrack = list.GetListItemIndex(listItemParaClient.Paragraph.Element as ListItem);
}
if(listItemParaClient.IsFirstChunk)
{
int dvBaseline = listItemParaClient.GetFirstTextLineBaseline();
if(PageFlowDirection != ThisFlowDirection)
{
ctx.PushTransform(new MatrixTransform(-1.0, 0.0, 0.0, 1.0, TextDpi.FromTextDpi(2 * listItemParaClient.Rect.u + listItemParaClient.Rect.du), 0.0));
}
int adjustedIndex;
if (int.MaxValue - index < indexFirstParaInSubtrack)
{
adjustedIndex = int.MaxValue;
}
else
{
adjustedIndex = indexFirstParaInSubtrack + index;
}
LineProperties lineProps = new LineProperties(Paragraph.Element, Paragraph.StructuralCache.FormattingOwner, textProperties, new MarkerProperties(list, adjustedIndex));
listMarkerLine.FormatAndDrawVisual(ctx, lineProps, listItemParaClient.Rect.u, dvBaseline);
if(PageFlowDirection != ThisFlowDirection)
{
ctx.Pop();
}
}
}
listMarkerLine.Dispose();
}
// Render list of paragraphs
PtsHelper.UpdateParaListVisuals(PtsContext, _visual.Children, fskupdInherited, arrayParaDesc);
}
else
{
_visual.Children.Clear();
}
}
//-------------------------------------------------------------------
//
// Protected Methods
//
//-------------------------------------------------------------------
#region Protected Methods
/// <summary>
/// Fetch the next run at text position.
/// </summary>
/// <param name="position">
/// Current position in text array
/// </param>
/// <returns></returns>
protected TextRun HandleText(StaticTextPointer position)
{
DependencyObject element;
StaticTextPointer endOfRunPosition;
Invariant.Assert(position.GetPointerContext(LogicalDirection.Forward) == TextPointerContext.Text, "TextPointer does not point to characters.");
if (position.Parent != null)
{
element = position.Parent;
}
else
{
element = _paraClient.Paragraph.Element;
}
// Extract the aggregated properties into something that the textrun can use.
//
TextProperties textProps = new TextProperties(element, position, false /* inline objects */, true /* get background */);
// Calculate the end of the run by finding either:
// a) the next intersection of highlight ranges, or
// b) the natural end of this textrun
endOfRunPosition = position.TextContainer.Highlights.GetNextPropertyChangePosition(position, LogicalDirection.Forward);
// Clamp the text run at an arbitrary limit, so we don't make
// an unbounded allocation.
if (position.GetOffsetToPosition(endOfRunPosition) > 4096)
{
endOfRunPosition = position.CreatePointer(4096);
}
// Get character buffer for the text run.
char[] textBuffer = new char[position.GetOffsetToPosition(endOfRunPosition)];
// Copy characters from text run into buffer. Note the actual number of characters copied,
// which may be different than the buffer's length. Buffer length only specifies the maximum
// number of characters
int charactersCopied = position.GetTextInRun(LogicalDirection.Forward, textBuffer, 0, textBuffer.Length);
// Create text run using the actual number of characters copied
return new TextCharacters(textBuffer, 0, charactersCopied, textProps);
}
// Token: 0x0600665F RID: 26207 RVA: 0x001CC103 File Offset: 0x001CA303
internal LineProperties(DependencyObject element, DependencyObject contentHost, TextProperties defaultTextProperties, MarkerProperties markerProperties) : this(element, contentHost, defaultTextProperties, markerProperties, (TextAlignment)element.GetValue(Block.TextAlignmentProperty))
{
}
