internal int FormatCellFinite(
IntPtr pfsclient, // IN:
IntPtr pfsparaclientTable, // IN: table's para client
IntPtr pfsbrkcell, // IN: not NULL if cell broken from previous page/column
IntPtr nmCell, // IN: for vMerged cells, the first cell (master)
IntPtr pfsFtnRejector, // IN:
int fEmptyOK, // IN:
uint fswdirTable, // IN:
int dvrExtraHeight, // IN: height above current row (non-zero for vMerged cells)
int dvrAvailable, // IN:
out PTS.FSFMTR pfmtr, // OUT:
out IntPtr ppfscell, // OUT: cell object
out IntPtr pfsbrkcellOut, // OUT: break if cell does not fit in dvrAvailable
out int dvrUsed) // OUT: height -- min height required
{
int fserr = PTS.fserrNone;
try
{
CellParagraph cellParagraph = PtsContext.HandleToObject(nmCell) as CellParagraph;
PTS.ValidateHandle(cellParagraph);
TableParaClient tableParaClient = PtsContext.HandleToObject(pfsparaclientTable) as TableParaClient;
PTS.ValidateHandle(tableParaClient);
cellParagraph.FormatCellFinite(
tableParaClient, pfsbrkcell, pfsFtnRejector, fEmptyOK, fswdirTable, dvrAvailable,
out pfmtr, out ppfscell, out pfsbrkcellOut, out dvrUsed);
}
catch (Exception e)
{
pfmtr = new PTS.FSFMTR();
ppfscell = IntPtr.Zero;
pfsbrkcellOut = IntPtr.Zero;
dvrUsed = 0;
PtsContext.CallbackException = e;
fserr = PTS.fserrCallbackException;
}
catch
{
pfmtr = new PTS.FSFMTR();
ppfscell = IntPtr.Zero;
pfsbrkcellOut = IntPtr.Zero;
dvrUsed = 0;
PtsContext.CallbackException = new System.Exception("Caught a non CLS Exception");
fserr = PTS.fserrCallbackException;
}
return (fserr);
}
internal int SubpageFormatParaFinite(
IntPtr pfssobjc, // IN: object context
IntPtr pfsparaclient, // IN:
IntPtr pfsobjbrk, // IN: break record---use if !NULL
int fBreakRecordFromPreviousPage, // IN: break record was created on previous page
IntPtr nmp, // IN: name of paragraph---use if break record is NULL
int iArea, // IN: column-span area index
IntPtr pftnrej, // IN:
IntPtr pfsgeom, // IN: pointer to geometry
int fEmptyOk, // IN: is it OK not to add anything?
int fSuppressTopSpace, // IN: suppress empty space at the top of the page
uint fswdir, // IN: current direction
ref PTS.FSRECT fsrcToFill, // IN: rectangle to fill
IntPtr pmcsclientIn, // IN: input margin collapsing state
PTS.FSKCLEAR fskclearIn, // IN: clear property that must be satisfied
PTS.FSKSUPPRESSHARDBREAKBEFOREFIRSTPARA fsksuppresshardbreakbeforefirstparaIn,
int fBreakInside, // IN: produce vertical break inside para; needed for recursive KWN logic;
out PTS.FSFMTR fsfmtr, // OUT: result of formatting the paragraph
out IntPtr pfspara, // OUT: pointer to the para data
out IntPtr pbrkrecpara, // OUT: pointer to the para break record
out int dvrUsed, // OUT: vertical space used by the para
out PTS.FSBBOX fsbbox, // OUT: para BBox
out IntPtr pmcsclientOut, // OUT: margin collapsing state at the bottom
out PTS.FSKCLEAR fskclearOut, // OUT: ClearIn for the next paragraph
out int dvrTopSpace, // OUT: top space due to collapsed margin
out int fBreakInsidePossible) // OUT: internal vertical break possible, needed for recursive KWN logic
{
int fserr = PTS.fserrNone;
fBreakInsidePossible = PTS.False;
try
{
SubpageParagraph para = PtsContext.HandleToObject(nmp) as SubpageParagraph;
PTS.ValidateHandle(para);
SubpageParaClient paraClient = PtsContext.HandleToObject(pfsparaclient) as SubpageParaClient;
PTS.ValidateHandle(paraClient);
MarginCollapsingState mcs = null;
if (pmcsclientIn != IntPtr.Zero)
{
mcs = PtsContext.HandleToObject(pmcsclientIn) as MarginCollapsingState;
PTS.ValidateHandle(mcs);
}
para.FormatParaFinite(paraClient, pfsobjbrk, fBreakRecordFromPreviousPage, pftnrej,
fEmptyOk, fSuppressTopSpace, fswdir, ref fsrcToFill, mcs, fskclearIn, fsksuppresshardbreakbeforefirstparaIn, out fsfmtr, out pfspara,
out pbrkrecpara, out dvrUsed, out fsbbox, out pmcsclientOut, out fskclearOut, out dvrTopSpace);
}
catch (Exception e)
{
fsfmtr = new PTS.FSFMTR(); pfspara = pbrkrecpara = pmcsclientOut = IntPtr.Zero; dvrUsed = dvrTopSpace = 0; fsbbox = new PTS.FSBBOX();
fskclearOut = default(PTS.FSKCLEAR);
PtsContext.CallbackException = e;
fserr = PTS.fserrCallbackException;
}
catch
{
fsfmtr = new PTS.FSFMTR(); pfspara = pbrkrecpara = pmcsclientOut = IntPtr.Zero; dvrUsed = dvrTopSpace = 0; fsbbox = new PTS.FSBBOX();
fskclearOut = default(PTS.FSKCLEAR);
PtsContext.CallbackException = new System.Exception("Caught a non CLS Exception");
fserr = PTS.fserrCallbackException;
}
return fserr;
}
internal override void FormatFloaterContentFinite(
FloaterBaseParaClient paraClient, // IN:
IntPtr pbrkrecIn, // IN: break record---use if !IntPtr.Zero
int fBRFromPreviousPage, // IN: break record was created on previous page
IntPtr footnoteRejector, // IN:
int fEmptyOk, // IN: is it OK not to add anything?
int fSuppressTopSpace, // IN: suppress empty space at the top of the page
uint fswdir, // IN: direction of Track
int fAtMaxWidth, // IN: formating is at full width of column
int durAvailable, // IN: width of available space
int dvrAvailable, // IN: height of available space
PTS.FSKSUPPRESSHARDBREAKBEFOREFIRSTPARA fsksuppresshardbreakbeforefirstparaIn,
// IN: suppress breaks at track start?
out PTS.FSFMTR fsfmtr, // OUT: result of formatting
out IntPtr pfsFloatContent, // OUT: opaque for PTS pointer pointer to formatted content
out IntPtr pbrkrecOut, // OUT: pointer to the floater content break record
out int durFloaterWidth, // OUT: floater width
out int dvrFloaterHeight, // OUT: floater height
out PTS.FSBBOX fsbbox, // OUT: floater bbox
out int cPolygons, // OUT: number of polygons
out int cVertices) // OUT: total number of vertices in all polygons
{
uint fswdirPara = PTS.FlowDirectionToFswdir(((FlowDirection)Element.GetValue(FrameworkElement.FlowDirectionProperty)));
int subpageWidth, subpageHeight;
int dvrTopSpace;
int cColumns;
PTS.FSRECT fsrcSubpageMargin;
PTS.FSCOLUMNINFO[] columnInfoCollection;
IntPtr pmcsclientOut;
double specifiedWidth;
MbpInfo mbp;
Invariant.Assert(paraClient is FloaterParaClient);
// If horizontal alignment is Stretch and we are not formatting at max width,
// we cannot proceed.
if (IsFloaterRejected(PTS.ToBoolean(fAtMaxWidth), TextDpi.FromTextDpi(durAvailable)))
{
durFloaterWidth = dvrFloaterHeight = 0;
cPolygons = cVertices = 0;
fsfmtr = new PTS.FSFMTR();
fsfmtr.kstop = PTS.FSFMTRKSTOP.fmtrNoProgressOutOfSpace;
fsfmtr.fContainsItemThatStoppedBeforeFootnote = PTS.False;
fsfmtr.fForcedProgress = PTS.False;
fsbbox = new PTS.FSBBOX();
fsbbox.fDefined = PTS.False;
pbrkrecOut = IntPtr.Zero;
pfsFloatContent = IntPtr.Zero;
}
else
{
// When formatting bottomless page, PTS may format paragraphs as finite. This happens
// in case of multiple columns. In this case make sure that height is not too big.
if (!StructuralCache.CurrentFormatContext.FinitePage)
{
if (Double.IsInfinity(StructuralCache.CurrentFormatContext.PageHeight))
{
if (dvrAvailable > PTS.dvBottomUndefined / 2)
{
dvrAvailable = Math.Min(dvrAvailable, PTS.dvBottomUndefined / 2);
fEmptyOk = PTS.False;
}
}
else
{
dvrAvailable = Math.Min(dvrAvailable, TextDpi.ToTextDpi(StructuralCache.CurrentFormatContext.PageHeight));
}
}
// Initialize the subpage size. PTS subpage margin is always set to 0 for Floaters.
// If width on floater is specified, use the specified value.
// Margin, border and padding of the floater is extracted from available subpage height
mbp = MbpInfo.FromElement(Element);
// We do not mirror margin as it's used to dist text left and right, and is unnecessary.
// Clip Floater.Width to available width
specifiedWidth = CalculateWidth(TextDpi.FromTextDpi(durAvailable));
AdjustDurAvailable(specifiedWidth, ref durAvailable, out subpageWidth);
subpageHeight = Math.Max(1, dvrAvailable - (mbp.MBPTop + mbp.MBPBottom));
fsrcSubpageMargin = new PTS.FSRECT();
fsrcSubpageMargin.du = subpageWidth;
fsrcSubpageMargin.dv = subpageHeight;
// Initialize column info. Floater always has just 1 column.
cColumns = 1;
columnInfoCollection = new PTS.FSCOLUMNINFO[cColumns];
columnInfoCollection[0].durBefore = 0;
columnInfoCollection[0].durWidth = subpageWidth;
// Format subpage
CreateSubpageFiniteHelper(PtsContext, pbrkrecIn, fBRFromPreviousPage, _mainTextSegment.Handle,
footnoteRejector, fEmptyOk, PTS.True, fswdir, subpageWidth, subpageHeight,
ref fsrcSubpageMargin, cColumns, columnInfoCollection, PTS.False, fsksuppresshardbreakbeforefirstparaIn,
out fsfmtr, out pfsFloatContent,
out pbrkrecOut, out dvrFloaterHeight, out fsbbox, out pmcsclientOut, out dvrTopSpace);
// Initialize subpage metrics
if (fsfmtr.kstop >= PTS.FSFMTRKSTOP.fmtrNoProgressOutOfSpace) // No progress or collision
{
Debug.Assert(pmcsclientOut == IntPtr.Zero);
durFloaterWidth = dvrFloaterHeight = 0;
cPolygons = cVertices = 0;
//pbrkrecpara = IntPtr.Zero;
}
else
{
// PTS subpage does not support autosizing, but Floater needs to autosize to its
// content. To workaround this problem, second format of subpage is performed, if
// necessary. It means that if the width of bounding box is smaller than subpage's
// width, second formatting is performed.
// However, if HorizontalAlignment is set to Stretch we should not reformat because floater
// should be at max width
if (PTS.ToBoolean(fsbbox.fDefined))
{
if(fsbbox.fsrc.du < subpageWidth && Double.IsNaN(specifiedWidth) && HorizontalAlignment != HorizontalAlignment.Stretch)
{
// There is a need to reformat PTS subpage, so destroy any resourcces allocated by PTS
// during previous formatting.
if (pfsFloatContent != IntPtr.Zero)
{
PTS.Validate(PTS.FsDestroySubpage(PtsContext.Context, pfsFloatContent), PtsContext);
pfsFloatContent = IntPtr.Zero;
}
if (pbrkrecOut != IntPtr.Zero)
{
PTS.Validate(PTS.FsDestroySubpageBreakRecord(PtsContext.Context, pbrkrecOut), PtsContext);
pbrkrecOut = IntPtr.Zero;
}
if (pmcsclientOut != IntPtr.Zero)
{
MarginCollapsingState mcs = PtsContext.HandleToObject(pmcsclientOut) as MarginCollapsingState;
PTS.ValidateHandle(mcs);
mcs.Dispose();
pmcsclientOut = IntPtr.Zero;
}
// Create subpage with new width.
subpageWidth = fsbbox.fsrc.du + 1; // add 1/300px to avoid rounding errors
fsrcSubpageMargin.du = subpageWidth;
fsrcSubpageMargin.dv = subpageHeight;
columnInfoCollection[0].durWidth = subpageWidth;
CreateSubpageFiniteHelper(PtsContext, pbrkrecIn, fBRFromPreviousPage, _mainTextSegment.Handle,
footnoteRejector, fEmptyOk, PTS.True, fswdir, subpageWidth, subpageHeight,
ref fsrcSubpageMargin, cColumns, columnInfoCollection, PTS.False, fsksuppresshardbreakbeforefirstparaIn,
out fsfmtr, out pfsFloatContent,
out pbrkrecOut, out dvrFloaterHeight, out fsbbox, out pmcsclientOut, out dvrTopSpace);
}
}
else
{
subpageWidth = TextDpi.ToTextDpi(TextDpi.MinWidth);
}
// Destroy objects created by PTS, but not used here.
if (pmcsclientOut != IntPtr.Zero)
{
MarginCollapsingState mcs = PtsContext.HandleToObject(pmcsclientOut) as MarginCollapsingState;
PTS.ValidateHandle(mcs);
mcs.Dispose();
pmcsclientOut = IntPtr.Zero;
}
// Get the size of the floater. For height PTS already reports calculated value.
// But width is the same as subpage width. Add margin values here since we do not use
// distance to text anymore
durFloaterWidth = subpageWidth + mbp.MBPLeft + mbp.MBPRight;
// Add back all MBP values since we do not use dist to text
dvrFloaterHeight += mbp.MBPTop + mbp.MBPBottom;
// Check if floater width fits in available width. It may exceed available width because borders and
// padding are added.
fsbbox.fsrc.u = 0;
fsbbox.fsrc.v = 0;
fsbbox.fsrc.du = durFloaterWidth;
fsbbox.fsrc.dv = dvrFloaterHeight;
fsbbox.fDefined = PTS.True;
// Tight wrap is disabled for now.
cPolygons = cVertices = 0;
if(durFloaterWidth > durAvailable || dvrFloaterHeight > dvrAvailable)
{
if(PTS.ToBoolean(fEmptyOk))
{
// Get rid of any previous formatting
if (pfsFloatContent != IntPtr.Zero)
{
PTS.Validate(PTS.FsDestroySubpage(PtsContext.Context, pfsFloatContent), PtsContext);
pfsFloatContent = IntPtr.Zero;
}
if (pbrkrecOut != IntPtr.Zero)
{
PTS.Validate(PTS.FsDestroySubpageBreakRecord(PtsContext.Context, pbrkrecOut), PtsContext);
pbrkrecOut = IntPtr.Zero;
}
cPolygons = cVertices = 0;
fsfmtr.kstop = PTS.FSFMTRKSTOP.fmtrNoProgressOutOfSpace;
}
else
{
fsfmtr.fForcedProgress = PTS.True;
}
}
}
}
// Update handle to PTS subpage.
((FloaterParaClient)paraClient).SubpageHandle = pfsFloatContent;
}
internal int FormatFloaterContentFinite(
IntPtr pfsclient, // IN: client opaque data
IntPtr pfsparaclient, // IN:
IntPtr pfsbrkFloaterContentIn, // IN: break record---use if !NULL
int fBreakRecordFromPreviousPage, // IN: break record was created on previous page
IntPtr nmFloater, // IN: name of floater
IntPtr pftnrej, // IN:
int fEmptyOk, // IN: is it OK not to add anything?
int fSuppressTopSpace, // IN: suppress empty space at the top of the page
uint fswdirTrack, // IN: direction of Track
int fAtMaxWidth, // IN: formating is at full width of column
int durAvailable, // IN: width of available space
int dvrAvailable, // IN: height of available space
PTS.FSKSUPPRESSHARDBREAKBEFOREFIRSTPARA fsksuppresshardbreakbeforefirstparaIn,
out PTS.FSFMTR fsfmtr, // OUT: result of formatting
out IntPtr pfsFloatContent, // OUT: opaque for PTS pointer pointer to formatted content
out IntPtr pbrkrecpara, // OUT: pointer to the floater content break record
out int durFloaterWidth, // OUT: floater width
out int dvrFloaterHeight, // OUT: floater height
out PTS.FSBBOX fsbbox, // OUT: floater bbox
out int cPolygons, // OUT: number of polygons
out int cVertices) // OUT: total number of vertices in all polygons
{
int fserr = PTS.fserrNone;
try
{
FloaterBaseParagraph para = PtsContext.HandleToObject(nmFloater) as FloaterBaseParagraph;
PTS.ValidateHandle(para);
FloaterBaseParaClient paraClient = PtsContext.HandleToObject(pfsparaclient) as FloaterBaseParaClient;
PTS.ValidateHandle(paraClient);
para.FormatFloaterContentFinite(paraClient, pfsbrkFloaterContentIn, fBreakRecordFromPreviousPage,
pftnrej, fEmptyOk, fSuppressTopSpace, fswdirTrack, fAtMaxWidth, durAvailable, dvrAvailable,
fsksuppresshardbreakbeforefirstparaIn, out fsfmtr, out pfsFloatContent, out pbrkrecpara, out durFloaterWidth,
out dvrFloaterHeight, out fsbbox, out cPolygons, out cVertices);
}
catch (Exception e)
{
fsfmtr = new PTS.FSFMTR(); pfsFloatContent = pbrkrecpara = IntPtr.Zero; durFloaterWidth = dvrFloaterHeight = cPolygons = cVertices = 0; fsbbox = new PTS.FSBBOX();
PtsContext.CallbackException = e;
fserr = PTS.fserrCallbackException;
}
catch
{
fsfmtr = new PTS.FSFMTR(); pfsFloatContent = pbrkrecpara = IntPtr.Zero; durFloaterWidth = dvrFloaterHeight = cPolygons = cVertices = 0; fsbbox = new PTS.FSBBOX();
PtsContext.CallbackException = new System.Exception("Caught a non CLS Exception");
fserr = PTS.fserrCallbackException;
}
return fserr;
}
//-------------------------------------------------------------------
// FormatFloaterContentFinite
//-------------------------------------------------------------------
internal override void FormatFloaterContentFinite(
FloaterBaseParaClient paraClient, // IN:
IntPtr pbrkrecIn, // IN: break record---use if !IntPtr.Zero
int fBRFromPreviousPage, // IN: break record was created on previous page
IntPtr footnoteRejector, // IN:
int fEmptyOk, // IN: is it OK not to add anything?
int fSuppressTopSpace, // IN: suppress empty space at the top of the page
uint fswdir, // IN: direction of Track
int fAtMaxWidth, // IN: formating is at full width of column
int durAvailable, // IN: width of available space
int dvrAvailable, // IN: height of available space
PTS.FSKSUPPRESSHARDBREAKBEFOREFIRSTPARA fsksuppresshardbreakbeforefirstparaIn,
// IN: suppress breaks at track start?
out PTS.FSFMTR fsfmtr, // OUT: result of formatting
out IntPtr pfsFloatContent, // OUT: opaque for PTS pointer pointer to formatted content
out IntPtr pbrkrecOut, // OUT: pointer to the floater content break record
out int durFloaterWidth, // OUT: floater width
out int dvrFloaterHeight, // OUT: floater height
out PTS.FSBBOX fsbbox, // OUT: floater bbox
out int cPolygons, // OUT: number of polygons
out int cVertices) // OUT: total number of vertices in all polygons
{
Invariant.Assert(paraClient is UIElementParaClient);
Invariant.Assert(Element is BlockUIContainer);
if (fAtMaxWidth == PTS.False && fEmptyOk == PTS.True)
{
// Do not format if not at max width, and if fEmptyOk is true
durFloaterWidth = dvrFloaterHeight = 0;
cPolygons = cVertices = 0;
fsfmtr = new PTS.FSFMTR();
fsfmtr.kstop = PTS.FSFMTRKSTOP.fmtrNoProgressOutOfSpace;
fsfmtr.fContainsItemThatStoppedBeforeFootnote = PTS.False;
fsfmtr.fForcedProgress = PTS.False;
fsbbox = new PTS.FSBBOX();
fsbbox.fDefined = PTS.False;
pbrkrecOut = IntPtr.Zero;
pfsFloatContent = IntPtr.Zero;
}
else
{
cPolygons = cVertices = 0;
// Formatting is not at max width but proceeds anyway because adding no content is not allowed
fsfmtr.fForcedProgress = PTS.FromBoolean(fAtMaxWidth == PTS.False);
// Format UIElement
if (((BlockUIContainer)Element).Child != null)
{
EnsureUIElementIsland();
FormatUIElement(durAvailable, out fsbbox);
}
else
{
// Child elementis null. Create fsbbox only with border and padding info
ClearUIElementIsland();
MbpInfo mbp = MbpInfo.FromElement(Element);
fsbbox.fsrc = new PTS.FSRECT();
fsbbox.fsrc.du = durAvailable;
fsbbox.fsrc.dv = mbp.BPTop + mbp.BPBottom;
}
durFloaterWidth = fsbbox.fsrc.du;
dvrFloaterHeight = fsbbox.fsrc.dv;
if (dvrAvailable < dvrFloaterHeight && fEmptyOk == PTS.True)
{
// Will not fit in available space. Since fEmptyOk is true, we can return null floater
durFloaterWidth = dvrFloaterHeight = 0;
fsfmtr = new PTS.FSFMTR();
fsfmtr.kstop = PTS.FSFMTRKSTOP.fmtrNoProgressOutOfSpace;
fsbbox = new PTS.FSBBOX();
fsbbox.fDefined = PTS.False;
pfsFloatContent = IntPtr.Zero;
}
else
{
// Either floater fits in available space or it doesn't but we cannot return nothing.
// Use the space needed, and set formatter result to forced progress if BUC does not fit in available space.
fsbbox.fDefined = PTS.True;
pfsFloatContent = paraClient.Handle;
if (dvrAvailable < dvrFloaterHeight)
{
// Indicate that progress was forced
Invariant.Assert(fEmptyOk == PTS.False);
fsfmtr.fForcedProgress = PTS.True;
}
fsfmtr.kstop = PTS.FSFMTRKSTOP.fmtrGoalReached;
}
// Set output values for floater content
pbrkrecOut = IntPtr.Zero;
fsfmtr.fContainsItemThatStoppedBeforeFootnote = PTS.False;
}
}
