// Token: 0x06004143 RID: 16707 RVA: 0x0012A510 File Offset: 0x00128710
private TextRun HandleText(StaticTextPointer position)
{
StaticTextPointer position2 = this._owner.Host.TextContainer.Highlights.GetNextPropertyChangePosition(position, LogicalDirection.Forward);
if (position.GetOffsetToPosition(position2) > 4096)
{
position2 = position.CreatePointer(4096);
}
Highlights highlights = position.TextContainer.Highlights;
TextDecorationCollection textDecorationCollection = highlights.GetHighlightValue(position, LogicalDirection.Forward, typeof(SpellerHighlightLayer)) as TextDecorationCollection;
TextRunProperties textRunProperties = this._lineProperties.DefaultTextRunProperties;
if (textDecorationCollection != null)
{
if (this._spellerErrorProperties == null)
{
this._spellerErrorProperties = new TextProperties((TextProperties)textRunProperties, textDecorationCollection);
}
textRunProperties = this._spellerErrorProperties;
}
ITextSelection textSelection = position.TextContainer.TextSelection;
TextEditor textEditor = (textSelection != null) ? textSelection.TextEditor : null;
if (textEditor != null)
{
ITextView textView = textEditor.TextView;
if (((textView != null) ? new bool?(textView.RendersOwnSelection) : null) == true && highlights.GetHighlightValue(position, LogicalDirection.Forward, typeof(TextSelection)) != DependencyProperty.UnsetValue)
{
TextProperties textProperties = new TextProperties((TextProperties)textRunProperties, textDecorationCollection);
FrameworkElement frameworkElement = (textEditor != null) ? textEditor.UiScope : null;
if (frameworkElement != null)
{
textProperties.SetBackgroundBrush(null);
Brush brush = frameworkElement.GetValue(TextBoxBase.SelectionTextBrushProperty) as Brush;
if (brush != null)
{
textProperties.SetForegroundBrush(brush);
}
}
textRunProperties = textProperties;
}
}
char[] array = new char[position.GetOffsetToPosition(position2)];
int textInRun = position.GetTextInRun(LogicalDirection.Forward, array, 0, array.Length);
Invariant.Assert(textInRun == array.Length);
return(new TextCharacters(array, 0, textInRun, textRunProperties));
}
//-------------------------------------------------------------------
//
// 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);
}
var highlights = position.TextContainer.Highlights;
// Factor in any speller error squiggles on the run.
TextDecorationCollection highlightDecorations = highlights.GetHighlightValue(position, LogicalDirection.Forward, typeof(SpellerHighlightLayer)) as TextDecorationCollection;
TextRunProperties properties = _lineProperties.DefaultTextRunProperties;
if (highlightDecorations != null)
{
if (_spellerErrorProperties == null)
{
_spellerErrorProperties = new TextProperties((TextProperties)properties, highlightDecorations);
}
properties = _spellerErrorProperties;
}
var textEditor = position.TextContainer.TextSelection?.TextEditor;
// DDVSO:405199
// Apply selection highlighting if needed
if ((textEditor?.TextView?.RendersOwnSelection == true) &&
highlights.GetHighlightValue(position, LogicalDirection.Forward, typeof(TextSelection)) != DependencyProperty.UnsetValue)
{
// We need to create a new TextProperties instance here since we are going to change the Foreground and Background.
var selectionProps = new TextProperties((TextProperties)properties, highlightDecorations);
// The UiScope that owns this line should be the source for text/highlight properties
var uiScope = textEditor?.UiScope;
if (uiScope != null)
{
// All selection properties are taken from TextBoxBase
bool isSelectionActive = (bool)uiScope.GetValue(TextBoxBase.IsSelectionActiveProperty);
bool isInactiveSelectionHighlightEnabled = (bool)uiScope.GetValue(TextBoxBase.IsInactiveSelectionHighlightEnabledProperty);
Brush selectionTextBrush = SystemColors.HighlightTextBrush;
// If we have an inactive selection and we allow the highlight, set the appropriate brush for the text here.
if (!isSelectionActive && isInactiveSelectionHighlightEnabled)
{
selectionTextBrush = SystemColors.InactiveSelectionHighlightTextBrush;
}
// Background should not be drawn since the selection is drawn below us
selectionProps.SetBackgroundBrush(null);
selectionProps.SetForegroundBrush(selectionTextBrush);
}
properties = selectionProps;
}
// 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));
}