// Token: 0x0600676F RID: 26479 RVA: 0x001CECD4 File Offset: 0x001CCED4
internal Geometry GetTightBoundingGeometryFromTextPositions(ITextPointer startPosition, ITextPointer endPosition, Rect visibleRect)
{
Geometry geometry = null;
if (endPosition.CompareTo(this.Cell.StaticElementEnd) >= 0)
{
geometry = new RectangleGeometry(this._rect.FromTextDpi());
}
else
{
SubpageParagraphResult subpageParagraphResult = (SubpageParagraphResult)this.CreateParagraphResult();
ReadOnlyCollection <ColumnResult> columns = subpageParagraphResult.Columns;
Transform transform = new TranslateTransform(-TextDpi.FromTextDpi(base.ContentRect.u), -TextDpi.FromTextDpi(base.ContentRect.v));
visibleRect = transform.TransformBounds(visibleRect);
geometry = TextDocumentView.GetTightBoundingGeometryFromTextPositionsHelper(columns[0].Paragraphs, subpageParagraphResult.FloatingElements, startPosition, endPosition, 0.0, visibleRect);
if (geometry != null)
{
Rect viewport = new Rect(0.0, 0.0, TextDpi.FromTextDpi(base.ContentRect.du), TextDpi.FromTextDpi(base.ContentRect.dv));
CaretElement.ClipGeometryByViewport(ref geometry, viewport);
transform = new TranslateTransform(TextDpi.FromTextDpi(base.ContentRect.u), TextDpi.FromTextDpi(base.ContentRect.v));
CaretElement.AddTransformToGeometry(geometry, transform);
}
}
return(geometry);
}
/// <summary>
/// Gets the rectangle for this ITextPointer
/// </summary>
/// <param name="pointer">the pointer to examine</param>
/// <returns>
/// The anchor point of the selection;
/// If there is no valid AnchorPoint returns Point(Double.NaN, Double.NaN).
/// </returns>
/// <exception cref="ArgumentNullException">pointer is null</exception>
public static Rect GetAnchorRectangle(ITextPointer pointer)
{
if (pointer == null)
{
throw new ArgumentNullException("pointer");
}
bool extension = false;
ITextView textView = GetDocumentPageTextView(pointer);
if (pointer.CompareTo(pointer.TextContainer.End) == 0)
{
//we can not get rectangle for the end of the TextContainer
//so get the last symbol
Point endPoint = new Point(Double.MaxValue, Double.MaxValue);
pointer = textView.GetTextPositionFromPoint(endPoint, true);
//we need to move the resulting rectangle at half space because
//the geometry calculating function does the same
extension = true;
}
if (textView != null && textView.IsValid && TextDocumentView.Contains(pointer, textView.TextSegments))
{
Rect rect = textView.GetRectangleFromTextPosition(pointer);
if (extension && rect != Rect.Empty)
{
rect.X += rect.Height / 2.0;
}
return(rect);
}
return(Rect.Empty);
}
// Token: 0x06006858 RID: 26712 RVA: 0x001D6978 File Offset: 0x001D4B78
private TextDocumentView GetTextView()
{
TextDocumentView textDocumentView = (TextDocumentView)((IServiceProvider)this).GetService(typeof(ITextView));
Invariant.Assert(textDocumentView != null);
return(textDocumentView);
}
/// <summary>
/// Retrieves PageNumber for specified ContentPosition.
/// </summary>
/// <param name="contentPosition">
/// Represents content position for which PageNumber is requested.</param>
/// <param name="pageNumber">Starting index for search process.</param>
/// <returns>
/// Returns true, if successfull. 'pageNumber' is updated with actual
/// page number that contains specified ContentPosition.
/// Returns false, if BreakRecordTable is missing information about
/// page that contains specified ContentPosition. 'pageNumber'
/// is updated with the last investigated page number.
/// </returns>
internal bool GetPageNumberForContentPosition(TextPointer contentPosition, ref int pageNumber)
{
bool foundPageNumber = false;
ReadOnlyCollection <TextSegment> textSegments;
Invariant.Assert(pageNumber >= 0 && pageNumber <= _breakRecords.Count, "Invalid PageNumber.");
// Iterate through entries in the BreakRecordTable (starting from specified index)
// and look for page that contains specified ContentPosition.
// NOTE: For each cached page collection of TextSegments is stored to
// optimize this search.
while (pageNumber < _breakRecords.Count)
{
Invariant.Assert(_breakRecords[pageNumber] != null, "Invalid BreakRecordTable entry.");
textSegments = _breakRecords[pageNumber].TextSegments;
if (textSegments != null)
{
if (TextDocumentView.Contains(contentPosition, textSegments))
{
foundPageNumber = true;
break;
}
}
else
{
// There is no information about this page.
break;
}
++pageNumber;
}
return(foundPageNumber);
}
// Token: 0x06007C39 RID: 31801 RVA: 0x0022EDE4 File Offset: 0x0022CFE4
public static Rect GetAnchorRectangle(ITextPointer pointer)
{
if (pointer == null)
{
throw new ArgumentNullException("pointer");
}
bool flag = false;
ITextView documentPageTextView = TextSelectionHelper.GetDocumentPageTextView(pointer);
if (pointer.CompareTo(pointer.TextContainer.End) == 0)
{
Point point = new Point(double.MaxValue, double.MaxValue);
pointer = documentPageTextView.GetTextPositionFromPoint(point, true);
flag = true;
}
if (documentPageTextView != null && documentPageTextView.IsValid && TextDocumentView.Contains(pointer, documentPageTextView.TextSegments))
{
Rect rectangleFromTextPosition = documentPageTextView.GetRectangleFromTextPosition(pointer);
if (flag && rectangleFromTextPosition != Rect.Empty)
{
rectangleFromTextPosition.X += rectangleFromTextPosition.Height / 2.0;
}
return(rectangleFromTextPosition);
}
return(Rect.Empty);
}
//-------------------------------------------------------------------
//
// Private Methods
//
//-------------------------------------------------------------------
#region Private Methods
// This method calculates the height of the first line if the element is TextBlock or FlowDocumentScrollViewer
// Otherwise returns the element height
private double GetFirstLineHeight(UIElement element)
{
// We need to find TextBlock/FlowDocumentScrollViewer if it is nested inside ContentPresenter
// Common scenario when used in styles is that BulletDecorator content is a ContentPresenter
UIElement text = FindText(element);
ReadOnlyCollection <LineResult> lr = null;
if (text != null)
{
TextBlock textElement = ((TextBlock)text);
if (textElement.IsLayoutDataValid)
{
lr = textElement.GetLineResults();
}
}
else
{
text = FindFlowDocumentScrollViewer(element);
if (text != null)
{
TextDocumentView tdv = ((IServiceProvider)text).GetService(typeof(ITextView)) as TextDocumentView;
if (tdv != null && tdv.IsValid)
{
ReadOnlyCollection <ColumnResult> cr = tdv.Columns;
if (cr != null && cr.Count > 0)
{
ColumnResult columnResult = cr[0];
ReadOnlyCollection <ParagraphResult> pr = columnResult.Paragraphs;
if (pr != null && pr.Count > 0)
{
ContainerParagraphResult cpr = pr[0] as ContainerParagraphResult;
if (cpr != null)
{
TextParagraphResult textParagraphResult = cpr.Paragraphs[0] as TextParagraphResult;
if (textParagraphResult != null)
{
lr = textParagraphResult.Lines;
}
}
}
}
}
}
}
if (lr != null && lr.Count > 0)
{
Point ancestorOffset = new Point();
text.TransformToAncestor(element).TryTransform(ancestorOffset, out ancestorOffset);
return(lr[0].LayoutBox.Height + ancestorOffset.Y * 2d);
}
return(element.RenderSize.Height);
}
// Token: 0x06006792 RID: 26514 RVA: 0x001CF734 File Offset: 0x001CD934
internal Geometry GetTightBoundingGeometryFromTextPositions(ITextPointer startPosition, ITextPointer endPosition, Rect visibleRect)
{
bool flag;
ReadOnlyCollection <ParagraphResult> childrenParagraphResults = this.GetChildrenParagraphResults(out flag);
Invariant.Assert(childrenParagraphResults != null, "Paragraph collection is null.");
if (childrenParagraphResults.Count > 0)
{
return(TextDocumentView.GetTightBoundingGeometryFromTextPositionsHelper(childrenParagraphResults, startPosition, endPosition, TextDpi.FromTextDpi(this._dvrTopSpace), visibleRect));
}
return(null);
}
/// <summary>
/// Returns tight bounding path geometry.
/// </summary>
internal Geometry GetTightBoundingGeometryFromTextPositions(ITextPointer startPosition, ITextPointer endPosition, Rect visibleRect)
{
bool hasTextContent;
ReadOnlyCollection <ParagraphResult> paragraphs = GetChildrenParagraphResults(out hasTextContent);
Invariant.Assert(paragraphs != null, "Paragraph collection is null.");
if (paragraphs.Count > 0)
{
return(TextDocumentView.GetTightBoundingGeometryFromTextPositionsHelper(paragraphs, startPosition, endPosition, TextDpi.FromTextDpi(_dvrTopSpace), visibleRect));
}
return(null);
}
// Token: 0x0600650E RID: 25870 RVA: 0x001C5C3C File Offset: 0x001C3E3C
private static void DumpFlowDocumentPage(XmlTextWriter writer, DocumentPage page)
{
FlowDocumentPage flowDocumentPage = page as FlowDocumentPage;
writer.WriteStartElement("FormattedLines");
writer.WriteAttributeString("Count", flowDocumentPage.FormattedLinesCount.ToString(CultureInfo.InvariantCulture));
writer.WriteEndElement();
TextDocumentView textDocumentView = (TextDocumentView)((IServiceProvider)flowDocumentPage).GetService(typeof(ITextView));
if (textDocumentView.IsValid)
{
LayoutDump.DumpColumnResults(writer, textDocumentView.Columns, page.Visual);
}
}
// Token: 0x06005BFA RID: 23546 RVA: 0x0019DB54 File Offset: 0x0019BD54
private double GetFirstLineHeight(UIElement element)
{
UIElement uielement = this.FindText(element);
ReadOnlyCollection <LineResult> readOnlyCollection = null;
if (uielement != null)
{
TextBlock textBlock = (TextBlock)uielement;
if (textBlock.IsLayoutDataValid)
{
readOnlyCollection = textBlock.GetLineResults();
}
}
else
{
uielement = this.FindFlowDocumentScrollViewer(element);
if (uielement != null)
{
TextDocumentView textDocumentView = ((IServiceProvider)uielement).GetService(typeof(ITextView)) as TextDocumentView;
if (textDocumentView != null && textDocumentView.IsValid)
{
ReadOnlyCollection <ColumnResult> columns = textDocumentView.Columns;
if (columns != null && columns.Count > 0)
{
ColumnResult columnResult = columns[0];
ReadOnlyCollection <ParagraphResult> paragraphs = columnResult.Paragraphs;
if (paragraphs != null && paragraphs.Count > 0)
{
ContainerParagraphResult containerParagraphResult = paragraphs[0] as ContainerParagraphResult;
if (containerParagraphResult != null)
{
TextParagraphResult textParagraphResult = containerParagraphResult.Paragraphs[0] as TextParagraphResult;
if (textParagraphResult != null)
{
readOnlyCollection = textParagraphResult.Lines;
}
}
}
}
}
}
}
if (readOnlyCollection != null && readOnlyCollection.Count > 0)
{
Point inPoint = default(Point);
uielement.TransformToAncestor(element).TryTransform(inPoint, out inPoint);
return(readOnlyCollection[0].LayoutBox.Height + inPoint.Y * 2.0);
}
return(element.RenderSize.Height);
}
// Token: 0x06006815 RID: 26645 RVA: 0x001D4A00 File Offset: 0x001D2C00
internal Geometry GetTightBoundingGeometryFromTextPositions(ReadOnlyCollection <ColumnResult> columns, ReadOnlyCollection <ParagraphResult> floatingElements, ITextPointer startPosition, ITextPointer endPosition, Rect visibleRect)
{
Geometry result = null;
Invariant.Assert(columns != null && columns.Count <= 1, "Columns collection is null.");
Invariant.Assert(floatingElements != null, "Floating element collection is null.");
ReadOnlyCollection <ParagraphResult> readOnlyCollection = (columns.Count > 0) ? columns[0].Paragraphs : new ReadOnlyCollection <ParagraphResult>(new List <ParagraphResult>(0));
if (readOnlyCollection.Count > 0 || floatingElements.Count > 0)
{
result = TextDocumentView.GetTightBoundingGeometryFromTextPositionsHelper(readOnlyCollection, floatingElements, startPosition, endPosition, TextDpi.FromTextDpi(this._dvrTopSpace), visibleRect);
Rect viewport = new Rect(0.0, 0.0, TextDpi.FromTextDpi(this._contentRect.du), TextDpi.FromTextDpi(this._contentRect.dv));
CaretElement.ClipGeometryByViewport(ref result, viewport);
}
return(result);
}
// ------------------------------------------------------------------
// Dump FlowDocumentPage specific data.
// ------------------------------------------------------------------
private static void DumpFlowDocumentPage(XmlTextWriter writer, DocumentPage page)
{
FlowDocumentPage flowDocumentPage = page as FlowDocumentPage;
Debug.Assert(flowDocumentPage != null, "Dump function has to match page type.");
// Dump private info.
writer.WriteStartElement("FormattedLines");
writer.WriteAttributeString("Count", flowDocumentPage.FormattedLinesCount.ToString(CultureInfo.InvariantCulture));
writer.WriteEndElement();
// Dump columns collection
TextDocumentView tv = (TextDocumentView)((IServiceProvider)flowDocumentPage).GetService(typeof(ITextView));
if (tv.IsValid)
{
DumpColumnResults(writer, tv.Columns, page.Visual);
}
}
/// <summary>
/// Returns tight bounding path geometry.
/// </summary>
internal Geometry GetTightBoundingGeometryFromTextPositions(ReadOnlyCollection <ColumnResult> columns, ReadOnlyCollection <ParagraphResult> floatingElements, ITextPointer startPosition, ITextPointer endPosition, Rect visibleRect)
{
Geometry geometry = null;
// Floater always has one column, so we can skip getting a column from the text position range
Invariant.Assert(columns != null && columns.Count <= 1, "Columns collection is null.");
Invariant.Assert(floatingElements != null, "Floating element collection is null.");
ReadOnlyCollection <ParagraphResult> paragraphs = (columns.Count > 0) ? columns[0].Paragraphs : new ReadOnlyCollection <ParagraphResult>(new List <ParagraphResult>(0));
if (paragraphs.Count > 0 || floatingElements.Count > 0)
{
geometry = TextDocumentView.GetTightBoundingGeometryFromTextPositionsHelper(paragraphs, floatingElements, startPosition, endPosition, TextDpi.FromTextDpi(_dvrTopSpace), visibleRect);
// restrict geometry to the floater's content rect boundary.
// because of end-of-line / end-of-para simulation calculated geometry could be larger.
Rect viewport = new Rect(0, 0, TextDpi.FromTextDpi(_contentRect.du), TextDpi.FromTextDpi(_contentRect.dv));
CaretElement.ClipGeometryByViewport(ref geometry, viewport);
}
return(geometry);
}
/// <summary>
///
/// </summary>
/// <param name="startPosition"></param>
/// <param name="endPosition"></param>
/// <param name="visibleRect"></param>
/// <returns></returns>
internal Geometry GetTightBoundingGeometryFromTextPositions(ITextPointer startPosition, ITextPointer endPosition, Rect visibleRect)
{
Geometry geometry = null;
// Find out if cell is selected. We consider cell selected if its end tag is crossed by selection.
// The asymmetry is important here - it allows to use only normalized positions
// and still be able to select individual cells.
// Note that this logic is an assumption in textselection unit expansion mechanism
// (TexSelection.ExtendSelectionToStructuralUnit method).
if (endPosition.CompareTo(Cell.StaticElementEnd) >= 0)
{
geometry = new RectangleGeometry(_rect.FromTextDpi());
}
else
{
SubpageParagraphResult paragraphResult = (SubpageParagraphResult)(CreateParagraphResult());
ReadOnlyCollection <ColumnResult> colResults = paragraphResult.Columns;
Transform transform;
transform = new TranslateTransform(-TextDpi.FromTextDpi(ContentRect.u), -TextDpi.FromTextDpi(ContentRect.v));
visibleRect = transform.TransformBounds(visibleRect);
transform = null;
geometry = TextDocumentView.GetTightBoundingGeometryFromTextPositionsHelper(colResults[0].Paragraphs, paragraphResult.FloatingElements, startPosition, endPosition, 0.0, visibleRect);
if (geometry != null)
{
// restrict geometry to the cell's content rect boundary.
// because of end-of-line / end-of-para simulation calculated geometry could be larger.
Rect viewport = new Rect(0, 0, TextDpi.FromTextDpi(ContentRect.du), TextDpi.FromTextDpi(ContentRect.dv));
CaretElement.ClipGeometryByViewport(ref geometry, viewport);
transform = new TranslateTransform(TextDpi.FromTextDpi(ContentRect.u), TextDpi.FromTextDpi(ContentRect.v));
CaretElement.AddTransformToGeometry(geometry, transform);
}
}
return(geometry);
}
// Token: 0x06006756 RID: 26454 RVA: 0x001CE084 File Offset: 0x001CC284
internal bool GetPageNumberForContentPosition(TextPointer contentPosition, ref int pageNumber)
{
bool result = false;
Invariant.Assert(pageNumber >= 0 && pageNumber <= this._breakRecords.Count, "Invalid PageNumber.");
while (pageNumber < this._breakRecords.Count)
{
Invariant.Assert(this._breakRecords[pageNumber] != null, "Invalid BreakRecordTable entry.");
ReadOnlyCollection <TextSegment> textSegments = this._breakRecords[pageNumber].TextSegments;
if (textSegments == null)
{
break;
}
if (TextDocumentView.Contains(contentPosition, textSegments))
{
result = true;
break;
}
pageNumber++;
}
return(result);
}
