internal ReadOnlyCollection<ColumnResult> GetColumnResults(out bool hasTextContent)
{
List<ColumnResult> columnResults = new List<ColumnResult>(0);
Vector contentOffset = new Vector();
// hasTextContent is set to true if any of the columns has text content, not just attached objects. A column has text content if any of
// it's paragraph results has text content
hasTextContent = false;
// Query subpage details
PTS.FSSUBPAGEDETAILS subpageDetails;
PTS.Validate(PTS.FsQuerySubpageDetails(PtsContext.Context, _paraHandle.Value, out subpageDetails));
// 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)
PTS.FSTRACKDETAILS trackDetails;
PTS.Validate(PTS.FsQueryTrackDetails(PtsContext.Context, subpageDetails.u.simple.trackdescr.pfstrack, out trackDetails));
if (trackDetails.cParas > 0)
{
columnResults = new List<ColumnResult>(1);
ColumnResult columnResult = new ColumnResult(this, ref subpageDetails.u.simple.trackdescr, contentOffset);
columnResults.Add(columnResult);
if (columnResult.HasTextContent)
{
hasTextContent = true;
}
}
}
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);
// Floaters are held at one column; just add the first one
columnResults = new List<ColumnResult>(1);
PTS.FSTRACKDETAILS trackDetails;
PTS.Validate(PTS.FsQueryTrackDetails(PtsContext.Context, arrayColumnDesc[0].pfstrack, out trackDetails));
if (trackDetails.cParas > 0)
{
ColumnResult columnResult = new ColumnResult(this, ref arrayColumnDesc[0], contentOffset);
columnResults.Add(columnResult);
if (columnResult.HasTextContent)
{
hasTextContent = true;
}
}
}
}
return new ReadOnlyCollection<ColumnResult>(columnResults);
}
internal ReadOnlyCollection<ColumnResult> GetColumnResults(out bool hasTextContent)
{
Invariant.Assert(!IsDisposed);
List<ColumnResult> columnResults = new List<ColumnResult>(0);
// hasTextContent is set to true if any of the columns in the page has text content. This is determined by checking the columns'
// paragraph collections
hasTextContent = false;
// There are 3 cases:
// (1) PTS page is not created - no columns are available.
// (2) PTS page - use page PTS APIs to get columns.
if (_ptsPage.PageHandle == IntPtr.Zero)
{
// (1) PTS page is not created
}
else
{
// (2) PTS page - use page PTS APIs to get columns.
PTS.FSPAGEDETAILS pageDetails;
PTS.Validate(PTS.FsQueryPageDetails(StructuralCache.PtsContext.Context, _ptsPage.PageHandle, out pageDetails));
// There are 2 different types of PTS page:
// (a) simple page (contains only one track) - 1 column.
// (b) complex page (contains header, page body, footnotes and footer) - get columns
// from the page body.
if (PTS.ToBoolean(pageDetails.fSimple))
{
// (a) simple page (contains only one track) - 1 column.
PTS.FSTRACKDETAILS trackDetails;
PTS.Validate(PTS.FsQueryTrackDetails(StructuralCache.PtsContext.Context, pageDetails.u.simple.trackdescr.pfstrack, out trackDetails));
if (trackDetails.cParas > 0)
{
columnResults = new List<ColumnResult>(1);
ColumnResult columnResult = new ColumnResult(this, ref pageDetails.u.simple.trackdescr, new Vector());
columnResults.Add(columnResult);
if (columnResult.HasTextContent)
{
hasTextContent = true;
}
}
}
else if (pageDetails.u.complex.cSections > 0)
{
// (b) complex page (contains header, page body, footnotes and footer) - get columns
// from the page body.
Debug.Assert(pageDetails.u.complex.cSections == 1); // Only one section is supported right now.
// Retrieve description for each section.
PTS.FSSECTIONDESCRIPTION[] arraySectionDesc;
PtsHelper.SectionListFromPage(StructuralCache.PtsContext, _ptsPage.PageHandle, ref pageDetails, out arraySectionDesc);
// Get section details
PTS.FSSECTIONDETAILS sectionDetails;
PTS.Validate(PTS.FsQuerySectionDetails(StructuralCache.PtsContext.Context, arraySectionDesc[0].pfssection, out sectionDetails));
// There are 2 types of sections:
// (1) with page notes - footnotes in section treated as endnotes
// (2) with column notes - footnotes in section treated as column notes
if (PTS.ToBoolean(sectionDetails.fFootnotesAsPagenotes))
{
// (1) with page notes - footnotes in section treated as endnotes
Debug.Assert(sectionDetails.u.withpagenotes.cEndnoteColumns == 0); // Footnotes are not supported yet.
//
Debug.Assert(sectionDetails.u.withpagenotes.cSegmentDefinedColumnSpanAreas == 0);
Debug.Assert(sectionDetails.u.withpagenotes.cHeightDefinedColumnSpanAreas == 0);
// cBasicColumns == 0, means that section content is empty.
// In such case there is nothing to render.
if (sectionDetails.u.withpagenotes.cBasicColumns > 0)
{
// Retrieve description for each column.
PTS.FSTRACKDESCRIPTION[] arrayColumnDesc;
PtsHelper.TrackListFromSection(StructuralCache.PtsContext, arraySectionDesc[0].pfssection, ref sectionDetails, out arrayColumnDesc);
columnResults = new List<ColumnResult>(sectionDetails.u.withpagenotes.cBasicColumns);
for (int i = 0; i < arrayColumnDesc.Length; i++)
{
PTS.FSTRACKDESCRIPTION columnDesc = arrayColumnDesc[i];
// Column may have null track, in which case we should not add it
if (columnDesc.pfstrack != IntPtr.Zero)
{
PTS.FSTRACKDETAILS trackDetails;
PTS.Validate(PTS.FsQueryTrackDetails(StructuralCache.PtsContext.Context, columnDesc.pfstrack, out trackDetails));
if (trackDetails.cParas > 0)
{
ColumnResult columnResult = new ColumnResult(this, ref columnDesc, new Vector());
columnResults.Add(columnResult);
if (columnResult.HasTextContent)
{
hasTextContent = true;
}
}
}
}
}
// else; section empty => no columns
}
else
{
// (2) with column notes - footnotes in section treated as column notes
Debug.Assert(false); // Complex columns are not supported yet.
}
}
}
Invariant.Assert(columnResults != null);
return new ReadOnlyCollection<ColumnResult>(columnResults);
}
