/// <summary>
/// Create and return visual node for the line.
/// </summary>
internal TextBoxLineDrawingVisual CreateVisual()
{
TextBoxLineDrawingVisual visual = new TextBoxLineDrawingVisual();
// Calculate shift in line offset to render trailing spaces or avoid clipping text.
double delta = CalculateXOffsetShift();
DrawingContext ctx = visual.RenderOpen();
_line.Draw(ctx, new Point(delta, 0), ((_lineProperties.FlowDirection == FlowDirection.RightToLeft) ? InvertAxes.Horizontal : InvertAxes.None));
ctx.Close();
return(visual);
}
/// <summary>
/// Create and return visual node for the line.
/// </summary>
internal TextBoxLineDrawingVisual CreateVisual(Geometry selectionGeometry)
{
TextBoxLineDrawingVisual visual = new TextBoxLineDrawingVisual();
// Calculate shift in line offset to render trailing spaces or avoid clipping text.
double delta = CalculateXOffsetShift();
DrawingContext ctx = visual.RenderOpen();
if (selectionGeometry != null)
{
var uiScope = _owner?.Host?.TextContainer?.TextSelection?.TextEditor?.UiScope;
if (uiScope != null)
{
Brush selectionBrush = uiScope.GetValue(TextBoxBase.SelectionBrushProperty) as Brush;
if (selectionBrush != null)
{
double selectionBrushOpacity = (double)uiScope.GetValue(TextBoxBase.SelectionOpacityProperty);
ctx.PushOpacity(selectionBrushOpacity);
// We use a Pen created from the brush used for the selection with a default thickness.
// This fixes issues where the geometries for the independent selection do not overlap
// and gaps can be seen to the background of the control between selection geometries.
ctx.DrawGeometry(selectionBrush, new Pen()
{
Brush = selectionBrush
}, selectionGeometry);
ctx.Pop();
}
}
}
_line.Draw(ctx, new Point(delta, 0), ((_lineProperties.FlowDirection == FlowDirection.RightToLeft) ? InvertAxes.Horizontal : InvertAxes.None));
ctx.Close();
return(visual);
}
/// <summary>
/// Create and return visual node for the line.
/// </summary>
internal TextBoxLineDrawingVisual CreateVisual()
{
TextBoxLineDrawingVisual visual = new TextBoxLineDrawingVisual();
// Calculate shift in line offset to render trailing spaces or avoid clipping text.
double delta = CalculateXOffsetShift();
DrawingContext ctx = visual.RenderOpen();
_line.Draw(ctx, new Point(delta, 0), ((_lineProperties.FlowDirection == FlowDirection.RightToLeft) ? InvertAxes.Horizontal : InvertAxes.None));
ctx.Close();
return visual;
}
// Adds a Visual to the line Visuals cache.
private void SetLineVisual(int lineIndex, TextBoxLineDrawingVisual lineVisual)
{
if (_viewportLineVisuals != null)
{
_viewportLineVisuals[lineIndex - _viewportLineVisualsIndex] = lineVisual;
}
}
// Adds a line visual to the visual tree.
private void AttachVisualChild(TextBoxLineDrawingVisual lineVisual)
{
AddVisualChild(lineVisual);
_visualChildren.Add(lineVisual);
}
// Adds a line visual to the visual tree.
private void AttachVisualChild(TextBoxLineDrawingVisual lineVisual)
{
// Ideally we should add visual to a collection before calling AddVisualChild.
// So that VisualDiagnostics.OnVisualChildChanged can get correct child index.
// However it is not clear what can regress. We'll use _parentIndex.
// Note that there is a comment in Visual.cs stating that _parentIndex should
// be set to -1 in DEBUG builds when child is removed. We are not going to
// honor it. There is no _parentIndex == -1 validation is performed anywhere.
lineVisual._parentIndex = _visualChildren.Count;
AddVisualChild(lineVisual);
_visualChildren.Add(lineVisual);
}
// Token: 0x06004135 RID: 16693 RVA: 0x0012A278 File Offset: 0x00128478
internal TextBoxLineDrawingVisual CreateVisual(Geometry selectionGeometry)
{
TextBoxLineDrawingVisual textBoxLineDrawingVisual = new TextBoxLineDrawingVisual();
double x = this.CalculateXOffsetShift();
DrawingContext drawingContext = textBoxLineDrawingVisual.RenderOpen();
if (selectionGeometry != null)
{
TextBoxView owner = this._owner;
FrameworkElement frameworkElement;
if (owner == null)
{
frameworkElement = null;
}
else
{
ITextBoxViewHost host = owner.Host;
if (host == null)
{
frameworkElement = null;
}
else
{
ITextContainer textContainer = host.TextContainer;
if (textContainer == null)
{
frameworkElement = null;
}
else
{
ITextSelection textSelection = textContainer.TextSelection;
if (textSelection == null)
{
frameworkElement = null;
}
else
{
TextEditor textEditor = textSelection.TextEditor;
frameworkElement = ((textEditor != null) ? textEditor.UiScope : null);
}
}
}
}
FrameworkElement frameworkElement2 = frameworkElement;
if (frameworkElement2 != null)
{
Brush brush = frameworkElement2.GetValue(TextBoxBase.SelectionBrushProperty) as Brush;
if (brush != null)
{
double opacity = (double)frameworkElement2.GetValue(TextBoxBase.SelectionOpacityProperty);
drawingContext.PushOpacity(opacity);
drawingContext.DrawGeometry(brush, new Pen
{
Brush = brush
}, selectionGeometry);
drawingContext.Pop();
}
}
}
this._line.Draw(drawingContext, new Point(x, 0.0), (this._lineProperties.FlowDirection == FlowDirection.RightToLeft) ? InvertAxes.Horizontal : InvertAxes.None);
drawingContext.Close();
return(textBoxLineDrawingVisual);
}
