// ------------------------------------------------------------------
// 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);
}
// Token: 0x06006603 RID: 26115 RVA: 0x001CABCC File Offset: 0x001C8DCC
internal override void Arrange(VisualCollection vc, Vector lineOffset)
{
int num = this._dcp;
IList <TextSpan <TextRun> > textRunSpans = this._line.GetTextRunSpans();
double num2 = lineOffset.X + base.CalculateXOffsetShift();
foreach (TextSpan <TextRun> textSpan in textRunSpans)
{
TextRun value = textSpan.Value;
if (value is InlineObject)
{
InlineObject inlineObject = value as InlineObject;
Visual visual = VisualTreeHelper.GetParent(inlineObject.Element) as Visual;
if (visual != null)
{
ContainerVisual containerVisual = visual as ContainerVisual;
Invariant.Assert(containerVisual != null, "parent should always derives from ContainerVisual");
containerVisual.Children.Remove(inlineObject.Element);
}
FlowDirection flowDirection;
Rect boundsFromPosition = base.GetBoundsFromPosition(num, inlineObject.Length, out flowDirection);
ContainerVisual containerVisual2 = new ContainerVisual();
if (inlineObject.Element is FrameworkElement)
{
FlowDirection childFD = this._owner.FlowDirection;
DependencyObject parent = ((FrameworkElement)inlineObject.Element).Parent;
if (parent != null)
{
childFD = (FlowDirection)parent.GetValue(FrameworkElement.FlowDirectionProperty);
}
PtsHelper.UpdateMirroringTransform(this._owner.FlowDirection, childFD, containerVisual2, boundsFromPosition.Width);
}
vc.Add(containerVisual2);
if (this._owner.UseLayoutRounding)
{
DpiScale dpi = this._owner.GetDpi();
containerVisual2.Offset = new Vector(UIElement.RoundLayoutValue(lineOffset.X + boundsFromPosition.Left, dpi.DpiScaleX), UIElement.RoundLayoutValue(lineOffset.Y + boundsFromPosition.Top, dpi.DpiScaleY));
}
else
{
containerVisual2.Offset = new Vector(lineOffset.X + boundsFromPosition.Left, lineOffset.Y + boundsFromPosition.Top);
}
containerVisual2.Children.Add(inlineObject.Element);
inlineObject.Element.Arrange(new Rect(inlineObject.Element.DesiredSize));
}
num += textSpan.Length;
}
}
// 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);
}
//-------------------------------------------------------------------
// Measure child UIElement.
//
// inlineObject - hosted inline object to measure.
//
// Returns: Size of the inline object.
//-------------------------------------------------------------------
internal Size MeasureChild(InlineObject inlineObject)
{
Debug.Assert(_complexContent != null, "Inline objects are supported only in complex content.");
Size desiredSize;
// Measure child only during measure pass. If not during measuring
// use RenderSize.
if (CheckFlags(Flags.MeasureInProgress))
{
// Measure inline objects. Original size constraint is passed,
// because inline object size should not be dependent on position
// inside a text line. It should not be also bigger than Text itself.
Thickness padding = this.Padding;
Size contentSize = new Size(Math.Max(0.0, _referenceSize.Width - (padding.Left + padding.Right)),
Math.Max(0.0, _referenceSize.Height - (padding.Top + padding.Bottom)));
inlineObject.Element.Measure(contentSize);
desiredSize = inlineObject.Element.DesiredSize;
// Store inline object in the cache.
ArrayList inlineObjects = InlineObjects;
bool alreadyCached = false;
if (inlineObjects == null)
{
InlineObjects = inlineObjects = new ArrayList(1);
}
else
{
// Find out if inline object is already cached.
for (int index = 0; index < inlineObjects.Count; index++)
{
if (((InlineObject)inlineObjects[index]).Dcp == inlineObject.Dcp)
{
Debug.Assert(((InlineObject)inlineObjects[index]).Element == inlineObject.Element, "InlineObject cache is out of [....].");
alreadyCached = true;
break;
}
}
}
if (!alreadyCached)
{
inlineObjects.Add(inlineObject);
}
}
else
{
desiredSize = inlineObject.Element.DesiredSize;
}
return desiredSize;
}
// ------------------------------------------------------------------
// Arrange content of formatted line.
//
// vc - Visual collection of the parent.
// lineOffset - Offset of the line.
// ------------------------------------------------------------------
internal override void Arrange(VisualCollection vc, Vector lineOffset)
{
// Arrange inline objects
int runDcp = _dcp;
IList <TextSpan <TextRun> > runs = _line.GetTextRunSpans();
Debug.Assert(runs != null, "Cannot retrieve runs collection.");
// Calculate offset shift due to trailing spaces
double adjustedXOffset = lineOffset.X + CalculateXOffsetShift();
foreach (TextSpan <TextRun> textSpan in runs)
{
TextRun run = textSpan.Value;
if (run is InlineObject)
{
InlineObject inlineObject = run as InlineObject;
// Disconnect visual from its old parent, if necessary.
Visual currentParent = VisualTreeHelper.GetParent(inlineObject.Element) as Visual;
if (currentParent != null)
{
ContainerVisual parent = currentParent as ContainerVisual;
Invariant.Assert(parent != null, "parent should always derives from ContainerVisual");
parent.Children.Remove(inlineObject.Element);
}
// Get position of inline object withing the text line.
FlowDirection flowDirection;
Rect rect = GetBoundsFromPosition(runDcp, inlineObject.Length, out flowDirection);
Debug.Assert(DoubleUtil.GreaterThanOrClose(rect.Width, 0), "Negative inline object's width.");
ContainerVisual proxyVisual = new ContainerVisual();
if (inlineObject.Element is FrameworkElement)
{
FlowDirection parentFlowDirection = _owner.FlowDirection;
// Check parent's FlowDirection to determine if mirroring is needed
DependencyObject parent = ((FrameworkElement)inlineObject.Element).Parent;
if (parent != null)
{
parentFlowDirection = (FlowDirection)parent.GetValue(FrameworkElement.FlowDirectionProperty);
}
PtsHelper.UpdateMirroringTransform(_owner.FlowDirection, parentFlowDirection, proxyVisual, rect.Width);
}
vc.Add(proxyVisual);
if (_owner.UseLayoutRounding)
{
// If using layout rounding, check whether rounding needs to compensate for high DPI
proxyVisual.Offset = new Vector(UIElement.RoundLayoutValue(lineOffset.X + rect.Left, FrameworkElement.DpiScaleX),
UIElement.RoundLayoutValue(lineOffset.Y + rect.Top, FrameworkElement.DpiScaleY));
}
else
{
proxyVisual.Offset = new Vector(lineOffset.X + rect.Left, lineOffset.Y + rect.Top);
}
proxyVisual.Children.Add(inlineObject.Element);
// Combine text line offset (relative to the Text control) with inline object
// offset (relative to the line) and set transorm on the visual. Trailing spaces
// shift is not added here because it is returned by GetBoundsFromPosition
inlineObject.Element.Arrange(new Rect(inlineObject.Element.DesiredSize));
}
// Do not use TextRun.Length, because it gives total length of the run.
// So, if the run is broken between lines, it gives incorrect value.
// Use length of the TextSpan instead, which gives the correct length here.
runDcp += textSpan.Length;
}
}
