internal ColumnResult(BaseParaClient subpage, ref PTS.FSTRACKDESCRIPTION trackDesc, Vector contentOffset)
{
// Subpage must be figure, floater or subpage paraclient
Invariant.Assert(subpage is SubpageParaClient || subpage is FigureParaClient || subpage is FloaterParaClient);
_subpage = subpage;
_columnHandle = trackDesc.pfstrack;
_layoutBox = new Rect(
TextDpi.FromTextDpi(trackDesc.fsrc.u), TextDpi.FromTextDpi(trackDesc.fsrc.v),
TextDpi.FromTextDpi(trackDesc.fsrc.du), TextDpi.FromTextDpi(trackDesc.fsrc.dv));
_layoutBox.X += contentOffset.X;
_layoutBox.Y += contentOffset.Y;
_columnOffset = new Vector(TextDpi.FromTextDpi(trackDesc.fsrc.u), TextDpi.FromTextDpi(trackDesc.fsrc.v));
}
internal override void CollapseMargin(
BaseParaClient paraClient, // IN:
MarginCollapsingState mcs, // IN: input margin collapsing state
uint fswdir, // IN: current direction (of the track, in which margin collapsing is happening)
bool suppressTopSpace, // IN: suppress empty space at the top of page
out int dvr) // OUT: dvr, calculated based on margin collapsing state
{
// Floaters are not participating in margin collapsing.
// Top space is always suppressed
dvr = 0;
}
//-------------------------------------------------------------------
//
// Constructors
//
//-------------------------------------------------------------------
#region Constructors
/// <summary>
/// Constructor.
/// </summary>
/// <param name="paraClient">Object representing a paragraph.</param>
internal FigureParagraphResult(BaseParaClient paraClient)
: base(paraClient)
{
}
internal override IInputElement InputHitTest(PTS.FSPOINT pt)
{
IInputElement ie = null;
if (_pageContextOfThisPage.FloatingElementList != null)
{
for (int index = 0; index < _pageContextOfThisPage.FloatingElementList.Count && ie == null; index++)
{
BaseParaClient floatingElement = _pageContextOfThisPage.FloatingElementList[index];
ie = floatingElement.InputHitTest(pt);
}
}
if (ie == null)
{
// Query subpage details
PTS.FSSUBPAGEDETAILS subpageDetails;
PTS.Validate(PTS.FsQuerySubpageDetails(PtsContext.Context, _paraHandle.Value, out subpageDetails));
if (Rect.Contains(pt))
{
if (ContentRect.Contains(pt))
{
pt = new PTS.FSPOINT(pt.u - ContentRect.u, pt.v - ContentRect.v);
// Hittest subpage content. Subpage content may be simple or complex -
// depending of set of features used in the content of the page.
// (1) simple subpage (contains only one track)
// (2) complex subpage (contains columns)
if (PTS.ToBoolean(subpageDetails.fSimple))
{
ie = PtsHelper.InputHitTestTrack(PtsContext, pt, ref subpageDetails.u.simple.trackdescr);
}
else
{
// (2) complex page (contains columns)
// cBasicColumns == 0, means that subpage content is empty
if (subpageDetails.u.complex.cBasicColumns != 0)
{
// Retrieve description for each column.
PTS.FSTRACKDESCRIPTION[] arrayColumnDesc;
PtsHelper.TrackListFromSubpage(PtsContext, _paraHandle.Value, ref subpageDetails, out arrayColumnDesc);
// Arrange each track
for (int index = 0; index < arrayColumnDesc.Length && ie == null; index++)
{
ie = PtsHelper.InputHitTestTrack(PtsContext, pt, ref arrayColumnDesc[index]);
}
}
}
}
if (ie == null)
{
ie = Paragraph.Element as IInputElement;
}
}
}
return(ie);
}
//-------------------------------------------------------------------
//
// Constructors
//
//-------------------------------------------------------------------
#region Constructors
/// <summary>
/// Constructor.
/// </summary>
/// <param name="paraClient">Object representing a paragraph.</param>
internal SubpageParagraphResult(BaseParaClient paraClient)
: base(paraClient)
{
}
//------------------------------------------------------
//
// Protected Methods
//
//------------------------------------------------------
#region Protected Methods
#endregion Protected Methods
//------------------------------------------------------
//
// Internal Methods
//
//------------------------------------------------------
#region Internal Methods
/// <summary>
/// Collapse Margins
/// </summary>
/// <param name="paraClient">Para client</param>
/// <param name="mcs">input margin collapsing state</param>
/// <param name="fswdir">current direction (of the track, in which margin collapsing is happening)</param>
/// <param name="suppressTopSpace">suppress empty space at the top of page</param>
/// <param name="dvr">dvr, calculated based on margin collapsing state</param>
internal override void CollapseMargin(
BaseParaClient paraClient, // IN:
MarginCollapsingState mcs, // IN: input margin collapsing state
uint fswdir, // IN: current direction (of the track, in which margin collapsing is happening)
bool suppressTopSpace, // IN: suppress empty space at the top of page
out int dvr) // OUT: dvr, calculated based on margin collapsing state
{
if (suppressTopSpace && (StructuralCache.CurrentFormatContext.FinitePage || mcs == null))
dvr = 0;
else
{
MbpInfo mbp = MbpInfo.FromElement(Table);
MarginCollapsingState mcsOut = null;
MarginCollapsingState.CollapseTopMargin(PtsContext, mbp, mcs, out mcsOut, out dvr);
if (mcsOut != null)
{
dvr = mcsOut.Margin;
mcsOut.Dispose();
mcsOut = null;
}
}
}
internal void RemoveFloatingParaClient(BaseParaClient floatingElement)
{
if(_floatingElementList.Contains(floatingElement))
{
_floatingElementList.Remove(floatingElement);
}
if(_floatingElementList.Count == 0)
{
_floatingElementList = null;
}
}
//-------------------------------------------------------------------
//
// Constructors
//
//-------------------------------------------------------------------
#region Constructors
/// <summary>
/// Constructor.
/// </summary>
/// <param name="paraClient">Object representing a paragraph.</param>
internal UIElementParagraphResult(BaseParaClient paraClient)
: base(paraClient)
{
}
//-------------------------------------------------------------------
//
// Constructors
//
//-------------------------------------------------------------------
#region Constructors
/// <summary>
/// Constructor.
/// </summary>
/// <param name="paraClient">Object representing a paragraph.</param>
internal ParagraphResult(BaseParaClient paraClient)
{
_paraClient = paraClient;
_layoutBox = _paraClient.Rect.FromTextDpi();
_element = paraClient.Paragraph.Element;
}
//-------------------------------------------------------------------
// CollapseMargin
//-------------------------------------------------------------------
internal override void CollapseMargin(
BaseParaClient paraClient, // IN:
MarginCollapsingState mcs, // IN: input margin collapsing state
uint fswdir, // IN: current direction (of the track, in which margin collapsing is happening)
bool suppressTopSpace, // IN: suppress empty space at the top of page
out int dvr) // OUT: dvr, calculated based on margin collapsing state
{
MbpInfo mbp = MbpInfo.FromElement(Element);
MarginCollapsingState mcsNew;
int margin;
MarginCollapsingState.CollapseTopMargin(PtsContext, mbp, mcs, out mcsNew, out margin);
if (suppressTopSpace)
{
dvr = 0;
}
else
{
dvr = margin;
if (mcsNew != null)
{
dvr += mcsNew.Margin;
}
}
if (mcsNew != null)
{
mcsNew.Dispose();
}
}
//-------------------------------------------------------------------
//
// Constructors
//
//-------------------------------------------------------------------
#region Constructors
/// <summary>
/// Constructor.
/// </summary>
/// <param name="paraClient">Object representing a paragraph.</param>
internal FloaterParagraphResult(BaseParaClient paraClient)
: base(paraClient)
{
}
out IntPtr paraClientHandle); // OUT: opaque to PTS paragraph client
//--------------------------------------------------------------------
// CollapseMargin
//-------------------------------------------------------------------
internal override abstract void CollapseMargin(
BaseParaClient paraClient, // IN:
MarginCollapsingState mcs, // IN: input margin collapsing state
uint fswdir, // IN: current direction (of the track, in which margin collapsing is happening)
bool suppressTopSpace, // IN: suppress empty space at the top of page
out int dvr); // OUT: dvr, calculated based on margin collapsing state
/// <summary>
/// Validate visual node associated with paragraph.
/// </summary>
/// <param name="fskupdInherited">
/// Inherited update info
/// </param>
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, Paragraph.StructuralCache.TextFormatterHost.PixelsPerDip);
if (ThisFlowDirection != PageFlowDirection)
{
mbp.MirrorBP();
}
uint fswdir = PTS.FlowDirectionToFswdir((FlowDirection)Paragraph.Element.GetValue(FrameworkElement.FlowDirectionProperty));
Brush backgroundBrush = (Brush)Paragraph.Element.GetValue(TextElement.BackgroundProperty);
// This textProperties object is eventually used in creation of LineProperties, which leads to creation of a TextMarkerSource. TextMarkerSource relies on PixelsPerDip
// from TextProperties, therefore it must be set here properly.
TextProperties textProperties = new TextProperties(Paragraph.Element, StaticTextPointer.Null, false /* inline objects */, false /* get background */,
Paragraph.StructuralCache.TextFormatterHost.PixelsPerDip);
// 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();
}
}
private ReadOnlyCollection <ParagraphResult> GetChildrenParagraphResults(out bool hasTextContent)
{
List <ParagraphResult> paragraphResults;
// Query subpage details
PTS.FSSUBPAGEDETAILS subpageDetails;
PTS.Validate(PTS.FsQuerySubpageDetails(PtsContext.Context, _paraHandle.Value, out subpageDetails));
// hasTextContent is set to true if any of the children paragraphs has text content, not just attached objects
hasTextContent = false;
// Subpage content may be simple or complex -
// depending of set of features used in the content of the page.
// (1) simple subpage (contains only one track)
// (2) complex subpage (contains columns)
if (PTS.ToBoolean(subpageDetails.fSimple))
{
// (1) simple subpage (contains only one track)
// Get track details
PTS.FSTRACKDETAILS trackDetails;
PTS.Validate(PTS.FsQueryTrackDetails(PtsContext.Context, subpageDetails.u.simple.trackdescr.pfstrack, out trackDetails));
hasTextContent = true;
if (trackDetails.cParas == 0)
{
return(new ReadOnlyCollection <ParagraphResult>(new List <ParagraphResult>(0)));
}
// Get list of paragraphs
PTS.FSPARADESCRIPTION[] arrayParaDesc;
PtsHelper.ParaListFromTrack(PtsContext, subpageDetails.u.simple.trackdescr.pfstrack, ref trackDetails, out arrayParaDesc);
paragraphResults = new List <ParagraphResult>(arrayParaDesc.Length);
for (int i = 0; i < arrayParaDesc.Length; i++)
{
BaseParaClient paraClient = PtsContext.HandleToObject(arrayParaDesc[i].pfsparaclient) as BaseParaClient;
PTS.ValidateHandle(paraClient);
ParagraphResult paragraphResult = paraClient.CreateParagraphResult();
if (paragraphResult.HasTextContent)
{
hasTextContent = true;
}
paragraphResults.Add(paragraphResult);
}
}
else
{
// (2) complex page (contains columns)
// cBasicColumns == 0, means that subpage content is empty
if (subpageDetails.u.complex.cBasicColumns == 0)
{
return(new ReadOnlyCollection <ParagraphResult>(new List <ParagraphResult>(0)));
}
// Retrieve description for each column.
PTS.FSTRACKDESCRIPTION[] arrayColumnDesc;
PtsHelper.TrackListFromSubpage(PtsContext, _paraHandle.Value, ref subpageDetails, out arrayColumnDesc);
Debug.Assert(arrayColumnDesc.Length == 1);
// Get track details
PTS.FSTRACKDETAILS trackDetails;
PTS.Validate(PTS.FsQueryTrackDetails(PtsContext.Context, arrayColumnDesc[0].pfstrack, out trackDetails));
if (trackDetails.cParas == 0)
{
return(new ReadOnlyCollection <ParagraphResult>(new List <ParagraphResult>(0)));
}
// Get list of paragraphs
PTS.FSPARADESCRIPTION[] arrayParaDesc;
PtsHelper.ParaListFromTrack(PtsContext, arrayColumnDesc[0].pfstrack, ref trackDetails, out arrayParaDesc);
paragraphResults = new List <ParagraphResult>(arrayParaDesc.Length);
for (int i = 0; i < arrayParaDesc.Length; i++)
{
BaseParaClient paraClient = PtsContext.HandleToObject(arrayParaDesc[i].pfsparaclient) as BaseParaClient;
PTS.ValidateHandle(paraClient);
ParagraphResult paragraphResult = paraClient.CreateParagraphResult();
if (paragraphResult.HasTextContent)
{
hasTextContent = true;
}
paragraphResults.Add(paragraphResult);
}
}
return(new ReadOnlyCollection <ParagraphResult>(paragraphResults));
}
/// <summary>
/// Collapse margins
/// </summary>
/// <param name="paraClient">
/// IN: Paragraph's para client
/// </param>
/// <param name="mcs">
/// IN: input margin collapsing state
/// </param>
/// <param name="fswdir">
/// IN: current direction (of the track, in which margin collapsing is happening)
/// </param>
/// <param name="suppressTopSpace">
/// IN: suppress empty space at the top of page
/// </param>
/// <param name="dvr">
/// OUT: dvr, calculated based on margin collapsing state
/// </param>
internal virtual void CollapseMargin(
BaseParaClient paraClient,
MarginCollapsingState mcs,
uint fswdir,
bool suppressTopSpace,
out int dvr)
{
// Suppress top space only in paginated scenarios.
dvr = (mcs == null || (suppressTopSpace)) ? 0 : mcs.Margin;
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="paraClient">Object representing a paragraph.</param>
/// <param name="layoutBox">Layout box for paragraph.</param>
/// <param name="element">Element associated with this paragraph result.</param>
internal ParagraphResult(BaseParaClient paraClient, Rect layoutBox, DependencyObject element) : this(paraClient)
{
_layoutBox = layoutBox;
_element = element;
}
// ------------------------------------------------------------------
// Transfer display related information from another ParaClient.
//
// oldParaClient - another ParaClient
// ------------------------------------------------------------------
internal void TransferDisplayInfo(BaseParaClient oldParaClient)
{
Debug.Assert(oldParaClient._visual != null);
// Transfer visual node ownership
_visual = oldParaClient._visual;
oldParaClient._visual = null;
}
//-------------------------------------------------------------------
//
// Constructors
//
//-------------------------------------------------------------------
#region Constructors
/// <summary>
/// Constructor.
/// </summary>
/// <param name="paraClient">Object representing a paragraph.</param>
internal TableParagraphResult(BaseParaClient paraClient)
: base(paraClient)
{
}
internal void AddFloatingParaClient(BaseParaClient floatingElement)
{
if(_floatingElementList == null)
{
_floatingElementList = new List<BaseParaClient>();
}
if(!_floatingElementList.Contains(floatingElement))
{
_floatingElementList.Add(floatingElement);
}
}
//-------------------------------------------------------------------
//
// Constructors
//
//-------------------------------------------------------------------
#region Constructors
/// <summary>
/// Constructor.
/// </summary>
/// <param name="paraClient">Object representing a paragraph.</param>
/// <param name="index">Index of row in paragraph.</param>
/// <param name="rowRect">Rectangle of row - as rendered.</param>
/// <param name="rowParagraph">Actual paragraph result is bound to.</param>
internal RowParagraphResult(BaseParaClient paraClient, int index, Rect rowRect, RowParagraph rowParagraph)
: base(paraClient, rowRect, rowParagraph.Element)
{
_index = index;
}
internal LineBase(BaseParaClient paraClient) : base(paraClient.PtsContext)
{
_paraClient = paraClient;
}
private ReadOnlyCollection <ParagraphResult> GetChildrenParagraphResults(out bool hasTextContent)
{
PTS.FSSUBPAGEDETAILS fssubpagedetails;
PTS.Validate(PTS.FsQuerySubpageDetails(base.PtsContext.Context, this._paraHandle.Value, out fssubpagedetails));
hasTextContent = false;
List <ParagraphResult> list;
if (PTS.ToBoolean(fssubpagedetails.fSimple))
{
PTS.FSTRACKDETAILS fstrackdetails;
PTS.Validate(PTS.FsQueryTrackDetails(base.PtsContext.Context, fssubpagedetails.u.simple.trackdescr.pfstrack, out fstrackdetails));
if (fstrackdetails.cParas == 0)
{
return(new ReadOnlyCollection <ParagraphResult>(new List <ParagraphResult>(0)));
}
PTS.FSPARADESCRIPTION[] array;
PtsHelper.ParaListFromTrack(base.PtsContext, fssubpagedetails.u.simple.trackdescr.pfstrack, ref fstrackdetails, out array);
list = new List <ParagraphResult>(array.Length);
for (int i = 0; i < array.Length; i++)
{
BaseParaClient baseParaClient = base.PtsContext.HandleToObject(array[i].pfsparaclient) as BaseParaClient;
PTS.ValidateHandle(baseParaClient);
ParagraphResult paragraphResult = baseParaClient.CreateParagraphResult();
if (paragraphResult.HasTextContent)
{
hasTextContent = true;
}
list.Add(paragraphResult);
}
}
else
{
if (fssubpagedetails.u.complex.cBasicColumns == 0)
{
return(new ReadOnlyCollection <ParagraphResult>(new List <ParagraphResult>(0)));
}
PTS.FSTRACKDESCRIPTION[] array2;
PtsHelper.TrackListFromSubpage(base.PtsContext, this._paraHandle.Value, ref fssubpagedetails, out array2);
PTS.FSTRACKDETAILS fstrackdetails2;
PTS.Validate(PTS.FsQueryTrackDetails(base.PtsContext.Context, array2[0].pfstrack, out fstrackdetails2));
if (fstrackdetails2.cParas == 0)
{
return(new ReadOnlyCollection <ParagraphResult>(new List <ParagraphResult>(0)));
}
PTS.FSPARADESCRIPTION[] array3;
PtsHelper.ParaListFromTrack(base.PtsContext, array2[0].pfstrack, ref fstrackdetails2, out array3);
list = new List <ParagraphResult>(array3.Length);
for (int j = 0; j < array3.Length; j++)
{
BaseParaClient baseParaClient2 = base.PtsContext.HandleToObject(array3[j].pfsparaclient) as BaseParaClient;
PTS.ValidateHandle(baseParaClient2);
ParagraphResult paragraphResult2 = baseParaClient2.CreateParagraphResult();
if (paragraphResult2.HasTextContent)
{
hasTextContent = true;
}
list.Add(paragraphResult2);
}
}
return(new ReadOnlyCollection <ParagraphResult>(list));
}
