//-------------------------------------------------------------------
// 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, StructuralCache.TextFormatterHost.PixelsPerDip);
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();
}
}
internal void FormatCellBottomless(uint fswdir, double width, out PTS.FSFMTRBL fmtrbl, out int dvrUsed)
{
if (this.CellParagraph.StructuralCache.DtrList != null)
{
this.CellParagraph.InvalidateStructure(TextContainerHelper.GetCPFromElement(this.CellParagraph.StructuralCache.TextContainer, this.CellParagraph.Element, ElementEdge.BeforeStart));
}
PTS.FSPAP fspap = default(PTS.FSPAP);
this.CellParagraph.GetParaProperties(ref fspap);
IntPtr value;
PTS.FSBBOX fsbbox;
IntPtr zero;
PTS.FSKCLEAR fskclear;
int num;
int num2;
this.CellParagraph.FormatParaBottomless(this, PTS.FromBoolean(false), fswdir, 0, TextDpi.ToTextDpi(width), 0, null, PTS.FSKCLEAR.fskclearNone, PTS.FromBoolean(true), out fmtrbl, out value, out dvrUsed, out fsbbox, out zero, out fskclear, out num, out num2);
if (zero != IntPtr.Zero)
{
MarginCollapsingState marginCollapsingState = base.PtsContext.HandleToObject(zero) as MarginCollapsingState;
PTS.ValidateHandle(marginCollapsingState);
dvrUsed += marginCollapsingState.Margin;
marginCollapsingState.Dispose();
zero = IntPtr.Zero;
}
this._paraHandle.Value = value;
}
internal void FormatCellFinite(Size subpageSize, IntPtr breakRecordIn, bool isEmptyOk, uint fswdir, PTS.FSKSUPPRESSHARDBREAKBEFOREFIRSTPARA fsksuppresshardbreakbeforefirstparaIn, out PTS.FSFMTR fsfmtr, out int dvrUsed, out IntPtr breakRecordOut)
{
if (this.CellParagraph.StructuralCache.DtrList != null)
{
this.CellParagraph.InvalidateStructure(TextContainerHelper.GetCPFromElement(this.CellParagraph.StructuralCache.TextContainer, this.CellParagraph.Element, ElementEdge.BeforeStart));
}
PTS.FSPAP fspap = default(PTS.FSPAP);
this.CellParagraph.GetParaProperties(ref fspap);
PTS.FSRECT fsrect = default(PTS.FSRECT);
fsrect.u = (fsrect.v = 0);
fsrect.du = TextDpi.ToTextDpi(subpageSize.Width);
fsrect.dv = TextDpi.ToTextDpi(subpageSize.Height);
bool condition = breakRecordIn != IntPtr.Zero;
IntPtr value;
PTS.FSBBOX fsbbox;
IntPtr zero;
PTS.FSKCLEAR fskclear;
int num;
this.CellParagraph.FormatParaFinite(this, breakRecordIn, PTS.FromBoolean(true), IntPtr.Zero, PTS.FromBoolean(isEmptyOk), PTS.FromBoolean(condition), fswdir, ref fsrect, null, PTS.FSKCLEAR.fskclearNone, fsksuppresshardbreakbeforefirstparaIn, out fsfmtr, out value, out breakRecordOut, out dvrUsed, out fsbbox, out zero, out fskclear, out num);
if (zero != IntPtr.Zero)
{
MarginCollapsingState marginCollapsingState = base.PtsContext.HandleToObject(zero) as MarginCollapsingState;
PTS.ValidateHandle(marginCollapsingState);
dvrUsed += marginCollapsingState.Margin;
marginCollapsingState.Dispose();
zero = IntPtr.Zero;
}
this._paraHandle.Value = value;
}
// ------------------------------------------------------------------
// Create new margin collapsing state and collapse margins if necessary.
// If no collapsing happens, retrieve margin from old collapsing state.
// This margin value should be used to advance pen.
// ------------------------------------------------------------------
internal static void CollapseTopMargin(
PtsContext ptsContext, // Current PTS Context.
MbpInfo mbp, // MBP information for element entering the scope
MarginCollapsingState mcsCurrent, // current margin collapsing state (adjacent to the new one).
out MarginCollapsingState mcsNew, // margin collapsing state for element entering the scope
out int margin) // collapsed margin value
{
margin = 0;
mcsNew = null;
// Create new margin collapsing info
mcsNew = new MarginCollapsingState(ptsContext, mbp.MarginTop);
// collapse margins, if current margin collapsing exists
if (mcsCurrent != null)
{
mcsNew.Collapse(mcsCurrent);
}
// If border or paddind is specified:
// (1) get collapsed margin value
// (2) set new mcs to null, because we don't have one anymore
if (mbp.BPTop != 0)
{
margin = mcsNew.Margin;
mcsNew.Dispose();
mcsNew = null;
}
else if (mcsCurrent == null && DoubleUtil.IsZero(mbp.Margin.Top))
{
// No need to create new margin collapsing info
mcsNew.Dispose();
mcsNew = null;
}
}
// ------------------------------------------------------------------
// Create new margin collapsing state and collapse margins if necessary.
// If no collapsing happens, retrieve margin from old collapsing state.
// This margin value should be used to advance pen.
// ------------------------------------------------------------------
internal static void CollapseTopMargin(
PtsContext ptsContext, // Current PTS Context.
MbpInfo mbp, // MBP information for element entering the scope
MarginCollapsingState mcsCurrent, // current margin collapsing state (adjacent to the new one).
out MarginCollapsingState mcsNew, // margin collapsing state for element entering the scope
out int margin) // collapsed margin value
{
margin = 0;
mcsNew = null;
// Create new margin collapsing info
mcsNew = new MarginCollapsingState(ptsContext, mbp.MarginTop);
// collapse margins, if current margin collapsing exists
if (mcsCurrent != null)
{
mcsNew.Collapse(mcsCurrent);
}
// If border or paddind is specified:
// (1) get collapsed margin value
// (2) set new mcs to null, because we don't have one anymore
if (mbp.BPTop != 0)
{
margin = mcsNew.Margin;
mcsNew.Dispose();
mcsNew = null;
}
else if (mcsCurrent == null && DoubleUtil.IsZero(mbp.Margin.Top))
{
// No need to create new margin collapsing info
mcsNew.Dispose();
mcsNew = null;
}
}
//------------------------------------------------------
//
// 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, StructuralCache.TextFormatterHost.PixelsPerDip);
MarginCollapsingState mcsOut = null;
MarginCollapsingState.CollapseTopMargin(PtsContext, mbp, mcs, out mcsOut, out dvr);
if (mcsOut != null)
{
dvr = mcsOut.Margin;
mcsOut.Dispose();
mcsOut = null;
}
}
}
// Token: 0x06006823 RID: 26659 RVA: 0x001D54A2 File Offset: 0x001D36A2
internal override void GetMCSClientAfterFloater(uint fswdirTrack, MarginCollapsingState mcs, out IntPtr pmcsclientOut)
{
if (mcs != null)
{
pmcsclientOut = mcs.Handle;
return;
}
pmcsclientOut = IntPtr.Zero;
}
/// <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;
}
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;
}
out IntPtr pmcsclientOut); // OUT: MCSCLIENT that floater will return to track
//-------------------------------------------------------------------
// GetDvrUsedForFloater
//-------------------------------------------------------------------
internal virtual void GetDvrUsedForFloater(
uint fswdirTrack, // IN: direction of Track
MarginCollapsingState mcs, // IN: input margin collapsing state
int dvrDisplaced, // IN:
out int dvrUsed) // OUT:
{
// When floater is pushed down due to collision, text may need to be
// pushed down together with the floater. In such case dvrUsed needs to be
// set to height of the floater.
// But for now there is no case, where we need this feature, hence dvrUsed is
// always 0.
dvrUsed = 0;
}
// Token: 0x06006B63 RID: 27491 RVA: 0x001F0474 File Offset: 0x001EE674
internal override void GetMCSClientAfterFloater(uint fswdirTrack, MarginCollapsingState mcs, out IntPtr pmcsclientOut)
{
MbpInfo mbp = MbpInfo.FromElement(base.Element, base.StructuralCache.TextFormatterHost.PixelsPerDip);
MarginCollapsingState marginCollapsingState;
int num;
MarginCollapsingState.CollapseBottomMargin(base.PtsContext, mbp, null, out marginCollapsingState, out num);
if (marginCollapsingState != null)
{
pmcsclientOut = marginCollapsingState.Handle;
return;
}
pmcsclientOut = IntPtr.Zero;
}
//-------------------------------------------------------------------
// GetMCSClientAfterFloater
//-------------------------------------------------------------------
internal override void GetMCSClientAfterFloater(
uint fswdirTrack, // IN: direction of Track
MarginCollapsingState mcs, // IN: input margin collapsing state
out IntPtr pmcsclientOut) // OUT: MCSCLIENT that floater will return to track
{
// Floaters margins are added during formatting.
if (mcs != null)
{
pmcsclientOut = mcs.Handle;
}
else
{
pmcsclientOut = IntPtr.Zero;
}
}
/// <summary>
/// FormatCellBottomless
/// </summary>
/// <param name="fswdir">Text Direction</param>
/// <param name="width">Width of cell (height is specified by row props)</param>
/// <param name="fmtrbl">bottomless format result</param>
/// <param name="dvrUsed">dvr Used</param>
internal void FormatCellBottomless(uint fswdir, double width, out PTS.FSFMTRBL fmtrbl, out int dvrUsed)
{
IntPtr pfspara;
PTS.FSBBOX fsbbox;
IntPtr pmcsclientOut;
PTS.FSKCLEAR fskclearOut;
int dvrTopSpace;
int fPageBecomesUninterruptable;
PTS.FSPAP fspap;
if (CellParagraph.StructuralCache.DtrList != null)
{
CellParagraph.InvalidateStructure(TextContainerHelper.GetCPFromElement(CellParagraph.StructuralCache.TextContainer, CellParagraph.Element, ElementEdge.BeforeStart));
}
fspap = new PTS.FSPAP();
CellParagraph.GetParaProperties(ref fspap);
CellParagraph.FormatParaBottomless(this, PTS.FromBoolean(false),
fswdir, 0, TextDpi.ToTextDpi(width),
0, null, PTS.FSKCLEAR.fskclearNone,
PTS.FromBoolean(true),
out fmtrbl,
out pfspara,
out dvrUsed,
out fsbbox,
out pmcsclientOut,
out fskclearOut,
out dvrTopSpace,
out fPageBecomesUninterruptable);
if (pmcsclientOut != IntPtr.Zero)
{
MarginCollapsingState mcs = PtsContext.HandleToObject(pmcsclientOut) as MarginCollapsingState;
PTS.ValidateHandle(mcs);
dvrUsed += mcs.Margin;
mcs.Dispose();
pmcsclientOut = IntPtr.Zero;
}
_paraHandle.Value = pfspara;
}
// Token: 0x06006AC8 RID: 27336 RVA: 0x001E9078 File Offset: 0x001E7278
internal override void CollapseMargin(BaseParaClient paraClient, MarginCollapsingState mcs, uint fswdir, bool suppressTopSpace, out int dvr)
{
if (suppressTopSpace && (base.StructuralCache.CurrentFormatContext.FinitePage || mcs == null))
{
dvr = 0;
return;
}
MbpInfo mbp = MbpInfo.FromElement(this.Table, base.StructuralCache.TextFormatterHost.PixelsPerDip);
MarginCollapsingState marginCollapsingState = null;
MarginCollapsingState.CollapseTopMargin(base.PtsContext, mbp, mcs, out marginCollapsingState, out dvr);
if (marginCollapsingState != null)
{
dvr = marginCollapsingState.Margin;
marginCollapsingState.Dispose();
marginCollapsingState = null;
}
}
// Token: 0x06006ACC RID: 27340 RVA: 0x001E9198 File Offset: 0x001E7398
internal void GetMCSClientAfterTable(uint fswdirTrack, IntPtr pmcsclientIn, out IntPtr ppmcsclientOut)
{
ppmcsclientOut = IntPtr.Zero;
MbpInfo mbp = MbpInfo.FromElement(this.Table, base.StructuralCache.TextFormatterHost.PixelsPerDip);
MarginCollapsingState mcsCurrent = null;
if (pmcsclientIn != IntPtr.Zero)
{
mcsCurrent = (base.PtsContext.HandleToObject(pmcsclientIn) as MarginCollapsingState);
}
MarginCollapsingState marginCollapsingState = null;
int num;
MarginCollapsingState.CollapseBottomMargin(base.PtsContext, mbp, mcsCurrent, out marginCollapsingState, out num);
if (marginCollapsingState != null)
{
ppmcsclientOut = marginCollapsingState.Handle;
}
}
//-------------------------------------------------------------------
// GetMCSClientAfterFloater
//-------------------------------------------------------------------
internal override void GetMCSClientAfterFloater(
uint fswdirTrack, // IN: direction of Track
MarginCollapsingState mcs, // IN: input margin collapsing state
out IntPtr pmcsclientOut) // OUT: MCSCLIENT that floater will return to track
{
MarginCollapsingState mcsNew;
int margin;
MbpInfo mbp = MbpInfo.FromElement(Element, StructuralCache.TextFormatterHost.PixelsPerDip);
MarginCollapsingState.CollapseBottomMargin(PtsContext, mbp, null, out mcsNew, out margin);
if (mcsNew != null)
{
pmcsclientOut = mcsNew.Handle;
}
else
{
pmcsclientOut = IntPtr.Zero;
}
}
internal void UpdateBottomlessCell(uint fswdir, double width, out PTS.FSFMTRBL fmtrbl, out int dvrUsed)
{
PTS.FSPAP fspap = default(PTS.FSPAP);
this.CellParagraph.GetParaProperties(ref fspap);
PTS.FSBBOX fsbbox;
IntPtr zero;
PTS.FSKCLEAR fskclear;
int num;
int num2;
this.CellParagraph.UpdateBottomlessPara(this._paraHandle.Value, this, PTS.FromBoolean(false), fswdir, 0, TextDpi.ToTextDpi(width), 0, null, PTS.FSKCLEAR.fskclearNone, PTS.FromBoolean(true), out fmtrbl, out dvrUsed, out fsbbox, out zero, out fskclear, out num, out num2);
if (zero != IntPtr.Zero)
{
MarginCollapsingState marginCollapsingState = base.PtsContext.HandleToObject(zero) as MarginCollapsingState;
PTS.ValidateHandle(marginCollapsingState);
dvrUsed += marginCollapsingState.Margin;
marginCollapsingState.Dispose();
zero = IntPtr.Zero;
}
}
// Token: 0x060068B2 RID: 26802 RVA: 0x001D8D54 File Offset: 0x001D6F54
internal static void CollapseBottomMargin(PtsContext ptsContext, MbpInfo mbp, MarginCollapsingState mcsCurrent, out MarginCollapsingState mcsNew, out int margin)
{
margin = 0;
mcsNew = null;
if (!DoubleUtil.IsZero(mbp.Margin.Bottom))
{
mcsNew = new MarginCollapsingState(ptsContext, mbp.MarginBottom);
}
if (mcsCurrent != null)
{
if (mbp.BPBottom != 0)
{
margin = mcsCurrent.Margin;
return;
}
if (mcsNew == null)
{
mcsNew = new MarginCollapsingState(ptsContext, 0);
}
mcsNew.Collapse(mcsCurrent);
}
}
// Token: 0x060068B1 RID: 26801 RVA: 0x001D8CE8 File Offset: 0x001D6EE8
internal static void CollapseTopMargin(PtsContext ptsContext, MbpInfo mbp, MarginCollapsingState mcsCurrent, out MarginCollapsingState mcsNew, out int margin)
{
margin = 0;
mcsNew = null;
mcsNew = new MarginCollapsingState(ptsContext, mbp.MarginTop);
if (mcsCurrent != null)
{
mcsNew.Collapse(mcsCurrent);
}
if (mbp.BPTop != 0)
{
margin = mcsNew.Margin;
mcsNew.Dispose();
mcsNew = null;
return;
}
if (mcsCurrent == null && DoubleUtil.IsZero(mbp.Margin.Top))
{
mcsNew.Dispose();
mcsNew = null;
}
}
/// <summary>
/// GetMCSClientAfterTable
/// </summary>
/// <param name="fswdirTrack">Direction of Track</param>
/// <param name="pmcsclientIn">Margin collapsing state</param>
/// <param name="ppmcsclientOut">Margin collapsing state</param>
internal void GetMCSClientAfterTable(
uint fswdirTrack,
IntPtr pmcsclientIn,
out IntPtr ppmcsclientOut)
{
ppmcsclientOut = IntPtr.Zero;
MbpInfo mbp = MbpInfo.FromElement(Table, StructuralCache.TextFormatterHost.PixelsPerDip);
MarginCollapsingState mcs = null;
if (pmcsclientIn != IntPtr.Zero)
{
mcs = PtsContext.HandleToObject(pmcsclientIn) as MarginCollapsingState;
}
MarginCollapsingState mcsNew = null;
int margin;
MarginCollapsingState.CollapseBottomMargin(PtsContext, mbp, mcs, out mcsNew, out margin);
if (mcsNew != null)
{
ppmcsclientOut = mcsNew.Handle;
}
}
/// <summary>
/// UpdateBottomlessCell
/// </summary>
/// <param name="fswdir">Text Direction</param>
/// <param name="width">Width of cell (height is specified by row props)</param>
/// <param name="fmtrbl">bottomless format result</param>
/// <param name="dvrUsed">dvr Used</param>
internal void UpdateBottomlessCell(uint fswdir, double width, out PTS.FSFMTRBL fmtrbl, out int dvrUsed)
{
IntPtr pmcsclientOut;
PTS.FSKCLEAR fskclearOut;
PTS.FSBBOX fsbbox;
int dvrTopSpace;
int fPageBecomesUninterruptable;
PTS.FSPAP fspap;
fspap = new PTS.FSPAP();
CellParagraph.GetParaProperties(ref fspap);
CellParagraph.UpdateBottomlessPara(_paraHandle.Value, this,
PTS.FromBoolean(false),
fswdir, 0,
TextDpi.ToTextDpi(width),
0, null,
PTS.FSKCLEAR.fskclearNone,
PTS.FromBoolean(true),
out fmtrbl,
out dvrUsed,
out fsbbox,
out pmcsclientOut,
out fskclearOut,
out dvrTopSpace,
out fPageBecomesUninterruptable);
if (pmcsclientOut != IntPtr.Zero)
{
MarginCollapsingState mcs = PtsContext.HandleToObject(pmcsclientOut) as MarginCollapsingState;
PTS.ValidateHandle(mcs);
dvrUsed += mcs.Margin;
mcs.Dispose();
pmcsclientOut = IntPtr.Zero;
}
}
// ------------------------------------------------------------------
// Update current margin collapsing state and collapse margins if
// necessary. If no collapsing happens, retrieve margin from previous
// collapsing state. This margin value should be used to advance pen.
// ------------------------------------------------------------------
internal static void CollapseBottomMargin(
PtsContext ptsContext, // Current PTS Context.
MbpInfo mbp, // MBP information for element leaving the scope
MarginCollapsingState mcsCurrent, // current margin collapsing state (adjacent to the new one).
out MarginCollapsingState mcsNew, // margin collapsing state for element leaving the scope
out int margin) // collapsed margin value
{
margin = 0;
mcsNew = null;
// Create new margin collapsing state, if necessary
if (!DoubleUtil.IsZero(mbp.Margin.Bottom))
{
mcsNew = new MarginCollapsingState(ptsContext, mbp.MarginBottom);
}
// If the current margin collapsing state does not exist, we are done.
// Otherwise, get current border and padding and decide if to collapse margin.
if (mcsCurrent != null)
{
if (mbp.BPBottom != 0)
{
// No collapsing happens, get margin value
margin = mcsCurrent.Margin;
}
else
{
// Collapse margins
if (mcsNew == null)
{
mcsNew = new MarginCollapsingState(ptsContext, 0);
}
mcsNew.Collapse(mcsCurrent);
}
}
}
// ------------------------------------------------------------------
// Update current margin collapsing state and collapse margins if
// necessary. If no collapsing happens, retrieve margin from previous
// collapsing state. This margin value should be used to advance pen.
// ------------------------------------------------------------------
internal static void CollapseBottomMargin(
PtsContext ptsContext, // Current PTS Context.
MbpInfo mbp, // MBP information for element leaving the scope
MarginCollapsingState mcsCurrent, // current margin collapsing state (adjacent to the new one).
out MarginCollapsingState mcsNew, // margin collapsing state for element leaving the scope
out int margin) // collapsed margin value
{
margin = 0;
mcsNew = null;
// Create new margin collapsing state, if necessary
if (!DoubleUtil.IsZero(mbp.Margin.Bottom))
{
mcsNew = new MarginCollapsingState(ptsContext, mbp.MarginBottom);
}
// If the current margin collapsing state does not exist, we are done.
// Otherwise, get current border and padding and decide if to collapse margin.
if (mcsCurrent != null)
{
if (mbp.BPBottom != 0)
{
// No collapsing happens, get margin value
margin = mcsCurrent.Margin;
}
else
{
// Collapse margins
if (mcsNew == null)
{
mcsNew = new MarginCollapsingState(ptsContext, 0);
}
mcsNew.Collapse(mcsCurrent);
}
}
}
// Token: 0x06006B5E RID: 27486 RVA: 0x001F0080 File Offset: 0x001EE280
internal override void CollapseMargin(BaseParaClient paraClient, MarginCollapsingState mcs, uint fswdir, bool suppressTopSpace, out int dvr)
{
MbpInfo mbp = MbpInfo.FromElement(base.Element, base.StructuralCache.TextFormatterHost.PixelsPerDip);
MarginCollapsingState marginCollapsingState;
int num;
MarginCollapsingState.CollapseTopMargin(base.PtsContext, mbp, mcs, out marginCollapsingState, out num);
if (suppressTopSpace)
{
dvr = 0;
}
else
{
dvr = num;
if (marginCollapsingState != null)
{
dvr += marginCollapsingState.Margin;
}
}
if (marginCollapsingState != null)
{
marginCollapsingState.Dispose();
}
}
// ------------------------------------------------------------------
// Compare margin collapsing state with another one.
//
// mcs - another margin collapsing state
//
// Returns: 'true' if both are the same.
// ------------------------------------------------------------------
internal bool IsEqual(MarginCollapsingState mcs)
{
return (_maxPositive == mcs._maxPositive && _minNegative == mcs._minNegative);
}
// ------------------------------------------------------------------
// Constructor. Make identical copy of the margin collapsing state.
//
// mcs - margin collapsing state to copy
// ------------------------------------------------------------------
private MarginCollapsingState(MarginCollapsingState mcs) : base(mcs.PtsContext)
{
_maxPositive = mcs._maxPositive;
_minNegative = mcs._minNegative;
}
// Token: 0x06006744 RID: 26436 RVA: 0x001CDDAD File Offset: 0x001CBFAD
internal virtual void CollapseMargin(BaseParaClient paraClient, MarginCollapsingState mcs, uint fswdir, bool suppressTopSpace, out int dvr)
{
dvr = ((mcs == null || suppressTopSpace) ? 0 : mcs.Margin);
}
internal unsafe void UpdateBottomlessPara(
IntPtr pfspara, // IN: pointer to the para data
SubpageParaClient paraClient, // IN:
int fSuppressTopSpace, // IN: suppress empty space at the top of the page
uint fswdir, // IN: current direction
int urTrack, // IN: u of bootomless rectangle to fill
int durTrack, // IN: du of bootomless rectangle to fill
int vrTrack, // IN: v of bootomless rectangle to fill
MarginCollapsingState mcs, // IN: input margin collapsing state
PTS.FSKCLEAR fskclearIn, // IN: clear property that must be satisfied
int fInterruptable, // IN: formatting can be interrupted
out PTS.FSFMTRBL fsfmtrbl, // OUT: result of formatting the paragraph
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 fPageBecomesUninterruptable) // OUT: interruption is prohibited from now on
{
int subpageWidth, urSubpageMargin, durSubpageMargin, vrSubpageMargin;
int cColumns;
int marginTop, marginBottom;
MbpInfo mbp;
MarginCollapsingState mcsSubpage, mcsBottom;
PTS.FSCOLUMNINFO[] columnInfoCollection;
uint fswdirSubpage = PTS.FlowDirectionToFswdir(((FlowDirection)Element.GetValue(FrameworkElement.FlowDirectionProperty)));
// Initialize the subpage size and its margin.
subpageWidth = durTrack;
urSubpageMargin = vrSubpageMargin = 0;
// Set clear property
Invariant.Assert(Element is TableCell || Element is AnchoredBlock);
fskclearIn = PTS.WrapDirectionToFskclear((WrapDirection)Element.GetValue(Block.ClearFloatersProperty));
// Take into account MBPs and modify subpage metrics,
// and make sure that subpage is at least 1 unit wide (cannot measure at width <= 0)
// NOTE: Do not suppress top space for bottomles pages.
mbp = MbpInfo.FromElement(Element, StructuralCache.TextFormatterHost.PixelsPerDip);
if (fswdirSubpage != fswdir)
{
PTS.FSRECT fsrcToFillSubpage = new PTS.FSRECT(urTrack, 0, durTrack, 0);
PTS.FSRECT pageRect = StructuralCache.CurrentFormatContext.PageRect;
PTS.Validate(PTS.FsTransformRectangle(fswdir, ref pageRect, ref fsrcToFillSubpage, fswdirSubpage, out fsrcToFillSubpage));
urTrack = fsrcToFillSubpage.u;
durTrack = fsrcToFillSubpage.du;
mbp.MirrorMargin();
}
subpageWidth = Math.Max(1, subpageWidth - (mbp.MBPLeft + mbp.MBPRight));
MarginCollapsingState.CollapseTopMargin(PtsContext, mbp, mcs, out mcsSubpage, out marginTop);
// Destroy top margin collapsing state (not needed anymore).
if (mcsSubpage != null)
{
mcsSubpage.Dispose();
mcsSubpage = null;
}
durSubpageMargin = subpageWidth;
// Initialize column info
// For bottomles spara, limit line height to the height of the current format context in structural cache.
ColumnPropertiesGroup columnProperties = new ColumnPropertiesGroup(_element);
double lineHeight = DynamicPropertyReader.GetLineHeightValue(_element);
double pageFontSize = (double)_structuralCache.PropertyOwner.GetValue(Block.FontSizeProperty);
FontFamily pageFontFamily = (FontFamily)_structuralCache.PropertyOwner.GetValue(Block.FontFamilyProperty);
// Get columns info, setting ownerIsFlowDocument flag to false. A flow document should not be formatted as a subpage and we
// do not want default column widths to be set on TableCells and floaters
cColumns = PtsHelper.CalculateColumnCount(columnProperties, lineHeight, TextDpi.FromTextDpi(subpageWidth), pageFontSize, pageFontFamily, false);
columnInfoCollection = new PTS.FSCOLUMNINFO[cColumns];
fixed(PTS.FSCOLUMNINFO *rgColumnInfo = columnInfoCollection)
{
PtsHelper.GetColumnsInfo(columnProperties, lineHeight, TextDpi.FromTextDpi(subpageWidth), pageFontSize, pageFontFamily, cColumns, rgColumnInfo, false);
}
StructuralCache.CurrentFormatContext.PushNewPageData(new Size(TextDpi.FromTextDpi(subpageWidth), TextDpi.MaxWidth),
new Thickness(),
true,
false);
// Create subpage
fixed(PTS.FSCOLUMNINFO *rgColumnInfo = columnInfoCollection)
{
PTS.Validate(PTS.FsUpdateBottomlessSubpage(PtsContext.Context, pfspara, _mainTextSegment.Handle, fSuppressTopSpace,
fswdir, subpageWidth, urSubpageMargin, durSubpageMargin, vrSubpageMargin,
cColumns, rgColumnInfo, 0, null, null, 0, null, null, PTS.FromBoolean(true),
out fsfmtrbl, out dvrUsed, out fsbbox, out pmcsclientOut, out dvrTopSpace,
out fPageBecomesUninterruptable), PtsContext);
}
StructuralCache.CurrentFormatContext.PopPageData();
fskclearOut = PTS.FSKCLEAR.fskclearNone;
if (fsfmtrbl != PTS.FSFMTRBL.fmtrblCollision)
{
// Bottom margin collapsing:
// (1) retrieve mcs from the subtrack
// (2) do margin collapsing; create a new margin collapsing state
if (pmcsclientOut != IntPtr.Zero)
{
mcsSubpage = PtsContext.HandleToObject(pmcsclientOut) as MarginCollapsingState;
PTS.ValidateHandle(mcsSubpage);
pmcsclientOut = IntPtr.Zero;
}
MarginCollapsingState.CollapseBottomMargin(PtsContext, mbp, mcsSubpage, out mcsBottom, out marginBottom);
pmcsclientOut = (mcsBottom != null) ? mcsBottom.Handle : IntPtr.Zero;
// Since MCS returned by PTS is never passed back, destroy MCS provided by PTS.
// If necessary, new MCS is created and passed back to PTS.
if (mcsSubpage != null)
{
mcsSubpage.Dispose();
mcsSubpage = null;
}
if (PTS.ToBoolean(fsbbox.fDefined))
{
// Workaround for PTS bug 860: get max of the page rect and
// bounding box of the page.
dvrUsed = Math.Max(dvrUsed, fsbbox.fsrc.dv + fsbbox.fsrc.v);
durTrack = Math.Max(durTrack, fsbbox.fsrc.du + fsbbox.fsrc.u);
}
// Take into account MBPs and modify subtrack metrics
dvrTopSpace = (mbp.BPTop != 0) ? marginTop : dvrTopSpace;
dvrUsed += (marginTop + mbp.BPTop) + (marginBottom + mbp.BPBottom);
// Update bounding box
fsbbox.fsrc.u = urTrack + mbp.MarginLeft;
fsbbox.fsrc.v = vrTrack + dvrTopSpace;
fsbbox.fsrc.du = Math.Max(durTrack - (mbp.MarginLeft + mbp.MarginRight), 0);
fsbbox.fsrc.dv = Math.Max(dvrUsed - dvrTopSpace, 0);
}
else
{
Debug.Assert(pmcsclientOut == IntPtr.Zero);
pfspara = IntPtr.Zero;
dvrUsed = dvrTopSpace = 0;
}
if (fswdirSubpage != fswdir)
{
PTS.FSRECT pageRect = StructuralCache.CurrentFormatContext.PageRect;
PTS.Validate(PTS.FsTransformBbox(fswdirSubpage, ref pageRect, ref fsbbox, fswdir, out fsbbox));
}
// Update information about first/last chunk. In bottomless scenario
// paragraph is not broken, so there is only one chunk.
paraClient.SetChunkInfo(true, true);
}
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;
}
internal override void FormatFloaterContentBottomless(
FloaterBaseParaClient paraClient, // IN:
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
out PTS.FSFMTRBL fsfmtrbl, // OUT: result of formatting
out IntPtr pfsFloatContent, // OUT: opaque for PTS pointer pointer to formatted content
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)));
Invariant.Assert(paraClient is FloaterParaClient);
int subpageWidth, urSubpageMargin, durSubpageMargin, vrSubpageMargin;
int dvrTopSpace, fPageBecomesUninterruptable;
int cColumns;
PTS.FSCOLUMNINFO[] columnInfoCollection;
IntPtr pmcsclientOut;
MbpInfo mbp;
double specifiedWidth;
// If horizontal alignment is Stretch and we are not formatting at max width,
// we cannot proceed.
if (IsFloaterRejected(PTS.ToBoolean(fAtMaxWidth), TextDpi.FromTextDpi(durAvailable)))
{
// Set foater width, height to be greater than available values to signal to PTS that floater does not fit in the space
durFloaterWidth = durAvailable + 1;
dvrFloaterHeight = dvrAvailable + 1;
cPolygons = cVertices = 0;
fsfmtrbl = PTS.FSFMTRBL.fmtrblInterrupted;
fsbbox = new PTS.FSBBOX();
fsbbox.fDefined = PTS.False;
pfsFloatContent = IntPtr.Zero;
}
else
{
// 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 width.
mbp = MbpInfo.FromElement(Element, StructuralCache.TextFormatterHost.PixelsPerDip);
specifiedWidth = CalculateWidth(TextDpi.FromTextDpi(durAvailable));
AdjustDurAvailable(specifiedWidth, ref durAvailable, out subpageWidth);
durSubpageMargin = subpageWidth;
urSubpageMargin = vrSubpageMargin = 0;
// Initialize column info. Floater always has just 1 column.
cColumns = 1;
columnInfoCollection = new PTS.FSCOLUMNINFO[cColumns];
columnInfoCollection[0].durBefore = 0;
columnInfoCollection[0].durWidth = subpageWidth;
// Create subpage
InvalidateMainTextSegment();
CreateSubpageBottomlessHelper(PtsContext, _mainTextSegment.Handle, PTS.True,
fswdir, subpageWidth, urSubpageMargin, durSubpageMargin, vrSubpageMargin,
cColumns, columnInfoCollection,
out fsfmtrbl, out pfsFloatContent, out dvrFloaterHeight, out fsbbox, out pmcsclientOut,
out dvrTopSpace, out fPageBecomesUninterruptable);
if (fsfmtrbl != PTS.FSFMTRBL.fmtrblCollision)
{
// 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 full column 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);
}
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 = durSubpageMargin = fsbbox.fsrc.du + 1; // add 1/300px to avoid rounding errors
columnInfoCollection[0].durWidth = subpageWidth;
CreateSubpageBottomlessHelper(PtsContext, _mainTextSegment.Handle, PTS.True,
fswdir, subpageWidth, urSubpageMargin, durSubpageMargin, vrSubpageMargin,
cColumns, columnInfoCollection,
out fsfmtrbl, out pfsFloatContent, out dvrFloaterHeight, out fsbbox, out pmcsclientOut,
out dvrTopSpace, out fPageBecomesUninterruptable);
}
}
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.
durFloaterWidth = subpageWidth + mbp.MBPLeft + mbp.MBPRight;
dvrFloaterHeight += mbp.MBPTop + mbp.MBPBottom;
// Check if floater width fits in available width. It may exceed available width because borders
// and padding are added.
if (dvrFloaterHeight > dvrAvailable ||
(durFloaterWidth > durAvailable && !PTS.ToBoolean(fAtMaxWidth))
)
{
// Get rid of any previous formatting
if (pfsFloatContent != IntPtr.Zero)
{
PTS.Validate(PTS.FsDestroySubpage(PtsContext.Context, pfsFloatContent), PtsContext);
}
Debug.Assert(pmcsclientOut == IntPtr.Zero);
cPolygons = cVertices = 0;
pfsFloatContent = IntPtr.Zero;
}
else
{
// Width and height are OK, format floater
// Adjust bounding box to cover entire floater.
fsbbox.fsrc.u = 0;
fsbbox.fsrc.v = 0;
fsbbox.fsrc.du = durFloaterWidth;
fsbbox.fsrc.dv = dvrFloaterHeight;
// Tight wrap is disabled for now.
cPolygons = cVertices = 0;
}
}
else
{
Debug.Assert(pmcsclientOut == IntPtr.Zero);
durFloaterWidth = dvrFloaterHeight = 0;
cPolygons = cVertices = 0;
pfsFloatContent = IntPtr.Zero;
}
}
// Update handle to PTS subpage.
((FloaterParaClient)paraClient).SubpageHandle = pfsFloatContent;
}
//-------------------------------------------------------------------
// 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();
}
}
//-------------------------------------------------------------------
// GetMCSClientAfterFloater
//-------------------------------------------------------------------
internal override void GetMCSClientAfterFloater(
uint fswdirTrack, // IN: direction of Track
MarginCollapsingState mcs, // IN: input margin collapsing state
out IntPtr pmcsclientOut) // OUT: MCSCLIENT that floater will return to track
{
MarginCollapsingState mcsNew;
int margin;
MbpInfo mbp = MbpInfo.FromElement(Element);
MarginCollapsingState.CollapseBottomMargin(PtsContext, mbp, null, out mcsNew, out margin);
if (mcsNew != null)
{
pmcsclientOut = mcsNew.Handle;
}
else
{
pmcsclientOut = IntPtr.Zero;
}
}
// ------------------------------------------------------------------
// The resulting margin width is the maximum of the adjoining margin
// widths. In the case of negative margins, the absolute maximum of
// the negative adjoining margins is deducted from the maximum of
// the positive adjoining margins. If there are no positive margins,
// the absolute maximum of the negative adjoining margins is deducted
// from zero.
//
// mcs - margin collapsing state to collapse with
// ------------------------------------------------------------------
internal void Collapse(MarginCollapsingState mcs)
{
_maxPositive = Math.Max(_maxPositive, mcs._maxPositive);
_minNegative = Math.Min(_minNegative, mcs._minNegative);
}
// ------------------------------------------------------------------
// Compare margin collapsing state with another one.
//
// mcs - another margin collapsing state
//
// Returns: 'true' if both are the same.
// ------------------------------------------------------------------
internal bool IsEqual(MarginCollapsingState mcs)
{
return(_maxPositive == mcs._maxPositive && _minNegative == mcs._minNegative);
}
// ------------------------------------------------------------------
// Constructor. Make identical copy of the margin collapsing state.
//
// mcs - margin collapsing state to copy
// ------------------------------------------------------------------
private MarginCollapsingState(MarginCollapsingState mcs) : base(mcs.PtsContext)
{
_maxPositive = mcs._maxPositive;
_minNegative = mcs._minNegative;
}
internal unsafe void FormatParaFinite(
SubpageParaClient paraClient, // IN:
IntPtr pbrkrecIn, // IN: break record---use if !NULL
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: current direction
ref PTS.FSRECT fsrcToFill, // IN: rectangle to fill
MarginCollapsingState mcs, // IN: input margin collapsing state
PTS.FSKCLEAR fskclearIn, // IN: clear property that must be satisfied
PTS.FSKSUPPRESSHARDBREAKBEFOREFIRSTPARA fsksuppresshardbreakbeforefirstparaIn,
// IN: suppress breaks at track start?
out PTS.FSFMTR fsfmtr, // OUT: result of formatting the paragraph
out IntPtr pfspara, // OUT: pointer to the para data
out IntPtr pbrkrecOut, // 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
{
uint fswdirSubpage = PTS.FlowDirectionToFswdir(((FlowDirection)Element.GetValue(FrameworkElement.FlowDirectionProperty)));
int subpageWidth, subpageHeight;
int cColumns;
int marginTop, marginBottom;
MbpInfo mbp;
MarginCollapsingState mcsSubpage, mcsBottom;
PTS.FSRECT fsrcSubpageMargin;
PTS.FSCOLUMNINFO [] columnInfoCollection;
// Currently it is possible to get MCS and BR in following situation:
// At the end of the page there is a paragraph with delayed figure, so the figure
// gets delayed to the next page. But part of the next paragraph fits in the page,
// so it gets broken. PTS creates BR with delayed figure and broken para.
// PTS will format the next page starting from delayed figure, which can produce MCS.
// So when the next paragraph is continued from BR, it has MCS.
// This problem is currently investigated by PTS team: PTSLS bug 915.
// For now, MCS gets ignored here.
//Debug.Assert(pbrkrecIn == IntPtr.Zero || mcs == null, "Broken paragraph cannot have margin collapsing state.");
if (mcs != null && pbrkrecIn != IntPtr.Zero)
{
mcs = null;
}
// Initialize the subpage size and its margin.
fsrcSubpageMargin = new PTS.FSRECT();
subpageWidth = fsrcToFill.du;
subpageHeight = fsrcToFill.dv;
// Set clear property
Invariant.Assert(Element is TableCell || Element is AnchoredBlock);
fskclearIn = PTS.WrapDirectionToFskclear((WrapDirection)Element.GetValue(Block.ClearFloatersProperty));
// Take into account MBPs and modify subpage metrics,
// and make sure that subpage is at least 1 unit wide (cannot measure at width <= 0)
marginTop = 0;
mcsSubpage = null;
// Get MBP info. Since subpage height and width must be at least 1, the max size for MBP is subpage dimensions less 1
mbp = MbpInfo.FromElement(Element);
if(fswdirSubpage != fswdir)
{
PTS.FSRECT pageRect = StructuralCache.CurrentFormatContext.PageRect;
PTS.Validate(PTS.FsTransformRectangle(fswdir, ref pageRect, ref fsrcToFill, fswdirSubpage, out fsrcToFill));
mbp.MirrorMargin();
}
subpageWidth = Math.Max(1, subpageWidth - (mbp.MBPLeft + mbp.MBPRight));
if (pbrkrecIn == IntPtr.Zero)
{
// Top margin collapsing. If suppresing top space, top margin is always 0.
MarginCollapsingState.CollapseTopMargin(PtsContext, mbp, mcs, out mcsSubpage, out marginTop);
if (PTS.ToBoolean(fSuppressTopSpace))
{
marginTop = 0;
}
subpageHeight = Math.Max(1, subpageHeight - (marginTop + mbp.BPTop));
// Destroy top margin collapsing state (not needed anymore).
if (mcsSubpage != null)
{
mcsSubpage.Dispose();
mcsSubpage = null;
}
}
else
{
Debug.Assert(fSuppressTopSpace == 1, "Top space should be always suppressed at the top of broken paragraph.");
}
fsrcSubpageMargin.du = subpageWidth;
fsrcSubpageMargin.dv = subpageHeight;
// Initialize column info
ColumnPropertiesGroup columnProperties = new ColumnPropertiesGroup(_element);
double lineHeight = DynamicPropertyReader.GetLineHeightValue(_element);
double pageFontSize = (double)_structuralCache.PropertyOwner.GetValue(Block.FontSizeProperty);
FontFamily pageFontFamily = (FontFamily)_structuralCache.PropertyOwner.GetValue(Block.FontFamilyProperty);
// Get columns info, setting ownerIsFlowDocument flag to false. A flow document should not be formatted as a subpage and we
// do not want default column widths to be set on TableCells and floaters
cColumns = PtsHelper.CalculateColumnCount(columnProperties, lineHeight, TextDpi.FromTextDpi(subpageWidth), pageFontSize, pageFontFamily, false);
columnInfoCollection = new PTS.FSCOLUMNINFO[cColumns];
fixed (PTS.FSCOLUMNINFO* rgColumnInfo = columnInfoCollection)
{
PtsHelper.GetColumnsInfo(columnProperties, lineHeight, TextDpi.FromTextDpi(subpageWidth), pageFontSize, pageFontFamily, cColumns, rgColumnInfo, false);
}
// Format subpage
StructuralCache.CurrentFormatContext.PushNewPageData(new Size(TextDpi.FromTextDpi(subpageWidth), TextDpi.FromTextDpi(subpageHeight)),
new Thickness(),
false,
true);
fixed (PTS.FSCOLUMNINFO* rgColumnInfo = columnInfoCollection)
{
PTS.Validate(PTS.FsCreateSubpageFinite(PtsContext.Context, pbrkrecIn, fBRFromPreviousPage, _mainTextSegment.Handle,
footnoteRejector, fEmptyOk, fSuppressTopSpace, fswdir, subpageWidth, subpageHeight,
ref fsrcSubpageMargin, cColumns, rgColumnInfo, PTS.False,
0, null, null, 0, null, null, PTS.FromBoolean(false),
fsksuppresshardbreakbeforefirstparaIn,
out fsfmtr, out pfspara, out pbrkrecOut, out dvrUsed, out fsbbox, out pmcsclientOut, out dvrTopSpace), PtsContext);
}
StructuralCache.CurrentFormatContext.PopPageData();
fskclearOut = PTS.FSKCLEAR.fskclearNone;
if (PTS.ToBoolean(fsbbox.fDefined))
{
// Workaround for PTS bug 860: get max of the page rect and
// bounding box of the page.
dvrUsed = Math.Max(dvrUsed, fsbbox.fsrc.dv + fsbbox.fsrc.v);
fsrcToFill.du = Math.Max(fsrcToFill.du, fsbbox.fsrc.du + fsbbox.fsrc.u);
}
if (pbrkrecIn == IntPtr.Zero) // if first chunk
{
// Take into account MBPs and modify subpage metrics
dvrTopSpace = (mbp.BPTop != 0) ? marginTop : dvrTopSpace;
dvrUsed += (marginTop + mbp.BPTop);
}
if (pmcsclientOut != IntPtr.Zero)
{
mcsSubpage = PtsContext.HandleToObject(pmcsclientOut) as MarginCollapsingState;
PTS.ValidateHandle(mcsSubpage);
pmcsclientOut = IntPtr.Zero;
}
// Initialize subpage metrics
if (fsfmtr.kstop >= PTS.FSFMTRKSTOP.fmtrNoProgressOutOfSpace) // No progress or collision
{
dvrUsed = dvrTopSpace = 0;
//pbrkrecOut = IntPtr.Zero;
//pfspara = IntPtr.Zero;
//pmcsclientOut = IntPtr.Zero;
}
else
{
if (fsfmtr.kstop == PTS.FSFMTRKSTOP.fmtrGoalReached)
{
// Bottom margin collapsing:
// (a) retrieve mcs from the subpage
// (b) do margin collapsing; create a new margin collapsing state
// There is no bottom margin collapsing if paragraph will be continued (output break record is not null).
MarginCollapsingState.CollapseBottomMargin(PtsContext, mbp, mcsSubpage, out mcsBottom, out marginBottom);
pmcsclientOut = (mcsBottom != null) ? mcsBottom.Handle : IntPtr.Zero;
if (pmcsclientOut == IntPtr.Zero) // if last chunk
dvrUsed += marginBottom + mbp.BPBottom;
}
// Update bounding box
fsbbox.fsrc.u = fsrcToFill.u + mbp.MarginLeft;
fsbbox.fsrc.v = fsrcToFill.v + dvrTopSpace;
fsbbox.fsrc.du = Math.Max(fsrcToFill.du - (mbp.MarginLeft + mbp.MarginRight), 0);
fsbbox.fsrc.dv = Math.Max(dvrUsed - dvrTopSpace, 0);
}
if(fswdirSubpage != fswdir)
{
PTS.FSRECT pageRect = StructuralCache.CurrentFormatContext.PageRect;
PTS.Validate(PTS.FsTransformBbox(fswdirSubpage, ref pageRect, ref fsbbox, fswdir, out fsbbox));
}
// Since MCS returned by PTS is never passed back, destroy MCS provided by PTS.
// If necessary, new MCS is created and passed back to PTS (see above).
if (mcsSubpage != null)
{
mcsSubpage.Dispose();
mcsSubpage = null;
}
// Update information about first/last chunk
paraClient.SetChunkInfo(pbrkrecIn == IntPtr.Zero, pbrkrecOut == IntPtr.Zero);
}
// ------------------------------------------------------------------
// The resulting margin width is the maximum of the adjoining margin
// widths. In the case of negative margins, the absolute maximum of
// the negative adjoining margins is deducted from the maximum of
// the positive adjoining margins. If there are no positive margins,
// the absolute maximum of the negative adjoining margins is deducted
// from zero.
//
// mcs - margin collapsing state to collapse with
// ------------------------------------------------------------------
internal void Collapse(MarginCollapsingState mcs)
{
_maxPositive = Math.Max(_maxPositive, mcs._maxPositive);
_minNegative = Math.Min(_minNegative, mcs._minNegative);
}
out int cVertices); // OUT: total number of vertices in all polygons
//-------------------------------------------------------------------
// GetMCSClientAfterFloater
//--------------------------------------------------------------------
internal abstract void GetMCSClientAfterFloater(
uint fswdirTrack, // IN: direction of Track
MarginCollapsingState mcs, // IN: input margin collapsing state
out IntPtr pmcsclientOut); // OUT: MCSCLIENT that floater will return to track
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
internal unsafe void UpdateBottomlessPara(
IntPtr pfspara, // IN: pointer to the para data
SubpageParaClient paraClient, // IN:
int fSuppressTopSpace, // IN: suppress empty space at the top of the page
uint fswdir, // IN: current direction
int urTrack, // IN: u of bootomless rectangle to fill
int durTrack, // IN: du of bootomless rectangle to fill
int vrTrack, // IN: v of bootomless rectangle to fill
MarginCollapsingState mcs, // IN: input margin collapsing state
PTS.FSKCLEAR fskclearIn, // IN: clear property that must be satisfied
int fInterruptable, // IN: formatting can be interrupted
out PTS.FSFMTRBL fsfmtrbl, // OUT: result of formatting the paragraph
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 fPageBecomesUninterruptable)// OUT: interruption is prohibited from now on
{
int subpageWidth, urSubpageMargin, durSubpageMargin, vrSubpageMargin;
int cColumns;
int marginTop, marginBottom;
MbpInfo mbp;
MarginCollapsingState mcsSubpage, mcsBottom;
PTS.FSCOLUMNINFO[] columnInfoCollection;
uint fswdirSubpage = PTS.FlowDirectionToFswdir(((FlowDirection)Element.GetValue(FrameworkElement.FlowDirectionProperty)));
// Initialize the subpage size and its margin.
subpageWidth = durTrack;
urSubpageMargin = vrSubpageMargin = 0;
// Set clear property
Invariant.Assert(Element is TableCell || Element is AnchoredBlock);
fskclearIn = PTS.WrapDirectionToFskclear((WrapDirection)Element.GetValue(Block.ClearFloatersProperty));
// Take into account MBPs and modify subpage metrics,
// and make sure that subpage is at least 1 unit wide (cannot measure at width <= 0)
// NOTE: Do not suppress top space for bottomles pages.
mbp = MbpInfo.FromElement(Element);
if(fswdirSubpage != fswdir)
{
PTS.FSRECT fsrcToFillSubpage = new PTS.FSRECT(urTrack, 0, durTrack, 0);
PTS.FSRECT pageRect = StructuralCache.CurrentFormatContext.PageRect;
PTS.Validate(PTS.FsTransformRectangle(fswdir, ref pageRect, ref fsrcToFillSubpage, fswdirSubpage, out fsrcToFillSubpage));
urTrack = fsrcToFillSubpage.u;
durTrack = fsrcToFillSubpage.du;
mbp.MirrorMargin();
}
subpageWidth = Math.Max(1, subpageWidth - (mbp.MBPLeft + mbp.MBPRight));
MarginCollapsingState.CollapseTopMargin(PtsContext, mbp, mcs, out mcsSubpage, out marginTop);
// Destroy top margin collapsing state (not needed anymore).
if (mcsSubpage != null)
{
mcsSubpage.Dispose();
mcsSubpage = null;
}
durSubpageMargin = subpageWidth;
// Initialize column info
// For bottomles spara, limit line height to the height of the current format context in structural cache.
ColumnPropertiesGroup columnProperties = new ColumnPropertiesGroup(_element);
double lineHeight = DynamicPropertyReader.GetLineHeightValue(_element);
double pageFontSize = (double)_structuralCache.PropertyOwner.GetValue(Block.FontSizeProperty);
FontFamily pageFontFamily = (FontFamily)_structuralCache.PropertyOwner.GetValue(Block.FontFamilyProperty);
// Get columns info, setting ownerIsFlowDocument flag to false. A flow document should not be formatted as a subpage and we
// do not want default column widths to be set on TableCells and floaters
cColumns = PtsHelper.CalculateColumnCount(columnProperties, lineHeight, TextDpi.FromTextDpi(subpageWidth), pageFontSize, pageFontFamily, false);
columnInfoCollection = new PTS.FSCOLUMNINFO[cColumns];
fixed (PTS.FSCOLUMNINFO* rgColumnInfo = columnInfoCollection)
{
PtsHelper.GetColumnsInfo(columnProperties, lineHeight, TextDpi.FromTextDpi(subpageWidth), pageFontSize, pageFontFamily, cColumns, rgColumnInfo, false);
}
StructuralCache.CurrentFormatContext.PushNewPageData(new Size(TextDpi.FromTextDpi(subpageWidth), TextDpi.MaxWidth),
new Thickness(),
true,
false);
// Create subpage
fixed (PTS.FSCOLUMNINFO* rgColumnInfo = columnInfoCollection)
{
PTS.Validate(PTS.FsUpdateBottomlessSubpage(PtsContext.Context, pfspara, _mainTextSegment.Handle, fSuppressTopSpace,
fswdir, subpageWidth, urSubpageMargin, durSubpageMargin, vrSubpageMargin,
cColumns, rgColumnInfo, 0, null, null, 0, null, null, PTS.FromBoolean(true),
out fsfmtrbl, out dvrUsed, out fsbbox, out pmcsclientOut, out dvrTopSpace,
out fPageBecomesUninterruptable), PtsContext);
}
StructuralCache.CurrentFormatContext.PopPageData();
fskclearOut = PTS.FSKCLEAR.fskclearNone;
if (fsfmtrbl != PTS.FSFMTRBL.fmtrblCollision)
{
// Bottom margin collapsing:
// (1) retrieve mcs from the subtrack
// (2) do margin collapsing; create a new margin collapsing state
if (pmcsclientOut != IntPtr.Zero)
{
mcsSubpage = PtsContext.HandleToObject(pmcsclientOut) as MarginCollapsingState;
PTS.ValidateHandle(mcsSubpage);
pmcsclientOut = IntPtr.Zero;
}
MarginCollapsingState.CollapseBottomMargin(PtsContext, mbp, mcsSubpage, out mcsBottom, out marginBottom);
pmcsclientOut = (mcsBottom != null) ? mcsBottom.Handle : IntPtr.Zero;
// Since MCS returned by PTS is never passed back, destroy MCS provided by PTS.
// If necessary, new MCS is created and passed back to PTS.
if (mcsSubpage != null)
{
mcsSubpage.Dispose();
mcsSubpage = null;
}
if (PTS.ToBoolean(fsbbox.fDefined))
{
// Workaround for PTS bug 860: get max of the page rect and
// bounding box of the page.
dvrUsed = Math.Max(dvrUsed, fsbbox.fsrc.dv + fsbbox.fsrc.v);
durTrack = Math.Max(durTrack, fsbbox.fsrc.du + fsbbox.fsrc.u);
}
// Take into account MBPs and modify subtrack metrics
dvrTopSpace = (mbp.BPTop != 0) ? marginTop : dvrTopSpace;
dvrUsed += (marginTop + mbp.BPTop) + (marginBottom + mbp.BPBottom);
// Update bounding box
fsbbox.fsrc.u = urTrack + mbp.MarginLeft;
fsbbox.fsrc.v = vrTrack + dvrTopSpace;
fsbbox.fsrc.du = Math.Max(durTrack - (mbp.MarginLeft + mbp.MarginRight), 0);
fsbbox.fsrc.dv = Math.Max(dvrUsed - dvrTopSpace, 0);
}
else
{
Debug.Assert(pmcsclientOut == IntPtr.Zero);
pfspara = IntPtr.Zero;
dvrUsed = dvrTopSpace = 0;
}
if(fswdirSubpage != fswdir)
{
PTS.FSRECT pageRect = StructuralCache.CurrentFormatContext.PageRect;
PTS.Validate(PTS.FsTransformBbox(fswdirSubpage, ref pageRect, ref fsbbox, fswdir, out fsbbox));
}
// Update information about first/last chunk. In bottomless scenario
// paragraph is not broken, so there is only one chunk.
paraClient.SetChunkInfo(true, true);
}
//------------------------------------------------------
//
// 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;
}
}
}
/// <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;
}
out IntPtr pmcsclientOut); // OUT: MCSCLIENT that floater will return to track
//-------------------------------------------------------------------
// GetDvrUsedForFloater
//--------------------------------------------------------------------
internal virtual void GetDvrUsedForFloater(
uint fswdirTrack, // IN: direction of Track
MarginCollapsingState mcs, // IN: input margin collapsing state
int dvrDisplaced, // IN:
out int dvrUsed) // OUT:
{
// When floater is pushed down due to collision, text may need to be
// pushed down together with the floater. In such case dvrUsed needs to be
// set to height of the floater.
// But for now there is no case, where we need this feature, hence dvrUsed is
// always 0.
dvrUsed = 0;
}
internal void UpdateBottomlessPara(
IntPtr pfspara, // IN: pointer to the para data
ContainerParaClient paraClient, // IN:
int iArea, // IN: column-span area index
IntPtr pfsgeom, // IN: pointer to geometry
int fSuppressTopSpace, // IN: suppress empty space at the top of the page
uint fswdir, // IN: current direction
int urTrack, // IN: u of bootomless rectangle to fill
int durTrack, // IN: du of bootomless rectangle to fill
int vrTrack, // IN: v of bootomless rectangle to fill
MarginCollapsingState mcs, // IN: input margin collapsing state
PTS.FSKCLEAR fskclearIn, // IN: clear property that must be satisfied
int fInterruptable, // IN: formatting can be interrupted
out PTS.FSFMTRBL fsfmtrbl, // OUT: result of formatting the paragraph
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 fPageBecomesUninterruptable)// OUT: interruption is prohibited from now on
{
uint fswdirSubtrack = PTS.FlowDirectionToFswdir(((FlowDirection)Element.GetValue(FrameworkElement.FlowDirectionProperty)));
Debug.Assert(iArea == 0);
// Top margin collapsing.
int marginTop;
MarginCollapsingState mcsContainer;
MbpInfo mbp = MbpInfo.FromElement(Element);
MarginCollapsingState.CollapseTopMargin(PtsContext, mbp, mcs, out mcsContainer, out marginTop);
if (PTS.ToBoolean(fSuppressTopSpace))
{
marginTop = 0;
}
// Set clear property
Invariant.Assert(Element is Block || Element is ListItem);
fskclearIn = PTS.WrapDirectionToFskclear((WrapDirection)Element.GetValue(Block.ClearFloatersProperty));
if(fswdirSubtrack != fswdir)
{
PTS.FSRECT fsrcToFillSubtrack = new PTS.FSRECT(urTrack, 0, durTrack, 0);
PTS.FSRECT pageRect = StructuralCache.CurrentFormatContext.PageRect;
PTS.Validate(PTS.FsTransformRectangle(fswdir, ref pageRect, ref fsrcToFillSubtrack, fswdirSubtrack, out fsrcToFillSubtrack));
urTrack = fsrcToFillSubtrack.u;
durTrack = fsrcToFillSubtrack.du;
mbp.MirrorMargin();
}
// Take into accound MBPs and modify subtrack metrics,
// and make sure that subtrack is at least 1 unit wide (cannot measure at width <= 0)
int urSubtrack, durSubtrack, vrSubtrack;
int dvrSubTrackTopSpace = 0;
urSubtrack = Math.Max(Math.Min(urTrack + mbp.MBPLeft, urTrack + durTrack - 1), urTrack);
durSubtrack = Math.Max(durTrack - (mbp.MBPLeft + mbp.MBPRight), 0);
vrSubtrack = vrTrack + (marginTop + mbp.BPTop);
// Format subtrack
try
{
PTS.Validate(PTS.FsUpdateBottomlessSubtrack(PtsContext.Context, pfspara, this.Handle, iArea,
pfsgeom, fSuppressTopSpace, fswdirSubtrack, urSubtrack, durSubtrack, vrSubtrack,
(mcsContainer != null) ? mcsContainer.Handle : IntPtr.Zero, fskclearIn, fInterruptable,
out fsfmtrbl, out dvrUsed, out fsbbox, out pmcsclientOut,
out fskclearOut, out dvrSubTrackTopSpace, out fPageBecomesUninterruptable), PtsContext);
}
finally
{
// Destroy top margin collapsing state (not needed anymore).
if (mcsContainer != null)
{
mcsContainer.Dispose();
mcsContainer = null;
}
}
if (fsfmtrbl != PTS.FSFMTRBL.fmtrblCollision)
{
// Bottom margin collapsing:
// (1) retrieve mcs from the subtrack
// (2) do margin collapsing; create a new margin collapsing state
if (pmcsclientOut != IntPtr.Zero)
{
mcsContainer = PtsContext.HandleToObject(pmcsclientOut) as MarginCollapsingState;
PTS.ValidateHandle(mcsContainer);
pmcsclientOut = IntPtr.Zero;
}
int marginBottom;
MarginCollapsingState mcsNew;
MarginCollapsingState.CollapseBottomMargin(PtsContext, mbp, mcsContainer, out mcsNew, out marginBottom);
pmcsclientOut = (mcsNew != null) ? mcsNew.Handle : IntPtr.Zero;
// Since MCS returned by PTS is never passed back, destroy MCS provided by PTS.
// If necessary, new MCS is created and passed back to PTS.
if (mcsContainer != null)
{
mcsContainer.Dispose();
mcsContainer = null;
}
// Take into accound MBPs and modify subtrack metrics
dvrTopSpace = (mbp.BPTop != 0) ? marginTop : dvrSubTrackTopSpace;
dvrUsed += (vrSubtrack - vrTrack) + marginBottom + mbp.BPBottom;
}
else
{
Debug.Assert(pmcsclientOut == IntPtr.Zero);
pfspara = IntPtr.Zero;
dvrTopSpace = 0;
}
// Adjust fsbbox to account for margins
fsbbox.fsrc.u -= mbp.MBPLeft;
fsbbox.fsrc.du += mbp.MBPLeft + mbp.MBPRight;
if(fswdirSubtrack != fswdir)
{
PTS.FSRECT pageRect = StructuralCache.CurrentFormatContext.PageRect;
PTS.Validate(PTS.FsTransformBbox(fswdirSubtrack, ref pageRect, ref fsbbox, fswdir, out fsbbox));
}
// Update information about first/last chunk. In bottomless scenario
// paragraph is not broken, so there is only one chunk.
paraClient.SetChunkInfo(true, true);
}
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, StructuralCache.TextFormatterHost.PixelsPerDip);
// 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 void FormatParaFinite(
ContainerParaClient paraClient, // IN:
IntPtr pbrkrecIn, // IN: break record---use if !IntPtr.Zero
int fBRFromPreviousPage, // IN: break record was created on previous page
int iArea, // IN: column-span area index
IntPtr footnoteRejector, // IN:
IntPtr geometry, // 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
MarginCollapsingState mcs, // IN: input margin collapsing state
PTS.FSKCLEAR fskclearIn, // IN: clear property that must be satisfied
PTS.FSKSUPPRESSHARDBREAKBEFOREFIRSTPARA fsksuppresshardbreakbeforefirstparaIn,
// IN: suppress breaks at track start?
out PTS.FSFMTR fsfmtr, // OUT: result of formatting the paragraph
out IntPtr pfspara, // OUT: pointer to the para data
out IntPtr pbrkrecOut, // 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
{
uint fswdirSubtrack = PTS.FlowDirectionToFswdir(((FlowDirection)Element.GetValue(FrameworkElement.FlowDirectionProperty)));
Debug.Assert(iArea == 0);
// Currently it is possible to get MCS and BR in following situation:
// At the end of the page there is a paragraph with delayed figure, so the figure
// gets delayed to the next page. But part of the next paragraph fits in the page,
// so it gets broken. PTS creates BR with delayed figure and broken para.
// PTS will format the next page starting from delayed figure, which can produce MCS.
// So when the next paragraph is continued from BR, it has MCS.
// This problem is currently investigated by PTS team: PTSLS bug 915.
// For now, MCS gets ignored here.
//ErrorHandler.Assert(pbrkrecIn == IntPtr.Zero || mcs == null, ErrorHandler.BrokenParaHasMcs);
if (mcs != null && pbrkrecIn != IntPtr.Zero)
{
mcs = null;
}
int marginTop = 0;
int marginBottom = 0;
MarginCollapsingState mcsContainer = null;
// Set clear property
Invariant.Assert(Element is Block || Element is ListItem);
fskclearIn = PTS.WrapDirectionToFskclear((WrapDirection)Element.GetValue(Block.ClearFloatersProperty));
// Take into accound MBPs and modify subtrack metrics,
// and make sure that subtrack is at least 1 unit wide (cannot measure at width <= 0)
PTS.FSRECT fsrcToFillSubtrack = fsrcToFill;
MbpInfo mbp = MbpInfo.FromElement(Element);
if(fswdirSubtrack != fswdir)
{
PTS.FSRECT pageRect = StructuralCache.CurrentFormatContext.PageRect;
PTS.Validate(PTS.FsTransformRectangle(fswdir, ref pageRect, ref fsrcToFillSubtrack, fswdirSubtrack, out fsrcToFillSubtrack));
PTS.Validate(PTS.FsTransformRectangle(fswdir, ref pageRect, ref fsrcToFill, fswdirSubtrack, out fsrcToFill));
mbp.MirrorMargin();
}
fsrcToFillSubtrack.u += mbp.MBPLeft;
fsrcToFillSubtrack.du -= mbp.MBPLeft + mbp.MBPRight;
fsrcToFillSubtrack.u = Math.Max(Math.Min(fsrcToFillSubtrack.u, fsrcToFill.u + fsrcToFill.du - 1), fsrcToFill.u);
fsrcToFillSubtrack.du = Math.Max(fsrcToFillSubtrack.du, 0);
if (pbrkrecIn == IntPtr.Zero)
{
// Top margin collapsing. If suppresing top space, top margin is always 0.
MarginCollapsingState.CollapseTopMargin(PtsContext, mbp, mcs, out mcsContainer, out marginTop);
if (PTS.ToBoolean(fSuppressTopSpace))
{
marginTop = 0;
}
fsrcToFillSubtrack.v += marginTop + mbp.BPTop;
fsrcToFillSubtrack.dv -= marginTop + mbp.BPTop;
fsrcToFillSubtrack.v = Math.Max(Math.Min(fsrcToFillSubtrack.v, fsrcToFill.v + fsrcToFill.dv - 1), fsrcToFill.v);
fsrcToFillSubtrack.dv = Math.Max(fsrcToFillSubtrack.dv, 0);
}
// Format subtrack
int dvrSubTrackTopSpace = 0;
try
{
PTS.Validate(PTS.FsFormatSubtrackFinite(PtsContext.Context, pbrkrecIn, fBRFromPreviousPage, this.Handle, iArea,
footnoteRejector, geometry, fEmptyOk, fSuppressTopSpace, fswdirSubtrack, ref fsrcToFillSubtrack,
(mcsContainer != null) ? mcsContainer.Handle : IntPtr.Zero, fskclearIn,
fsksuppresshardbreakbeforefirstparaIn,
out fsfmtr, out pfspara, out pbrkrecOut, out dvrUsed, out fsbbox, out pmcsclientOut, out fskclearOut,
out dvrSubTrackTopSpace), PtsContext);
}
finally
{
// Destroy top margin collapsing state (not needed anymore).
if (mcsContainer != null)
{
mcsContainer.Dispose();
mcsContainer = null;
}
//
if (dvrSubTrackTopSpace > PTS.dvBottomUndefined / 2)
{
dvrSubTrackTopSpace = 0;
}
}
// Take into accound MBPs and modify subtrack metrics
dvrTopSpace = (mbp.BPTop != 0) ? marginTop : dvrSubTrackTopSpace;
dvrUsed += (fsrcToFillSubtrack.v - fsrcToFill.v);
// Initialize subtrack metrics
if (fsfmtr.kstop >= PTS.FSFMTRKSTOP.fmtrNoProgressOutOfSpace) // No progress or collision
{
dvrUsed = 0;
}
// Since MCS returned by PTS is never passed back, destroy MCS provided by PTS.
// If necessary, new MCS is created and passed back to PTS.
if (pmcsclientOut != IntPtr.Zero)
{
mcsContainer = PtsContext.HandleToObject(pmcsclientOut) as MarginCollapsingState;
PTS.ValidateHandle(mcsContainer);
pmcsclientOut = IntPtr.Zero;
}
if (fsfmtr.kstop == PTS.FSFMTRKSTOP.fmtrGoalReached)
{
// Bottom margin collapsing:
// (a) retrieve mcs from the subtrack
// (b) do margin collapsing; create a new margin collapsing state
// There is no bottom margin collapsing if paragraph will be continued (output break record is not null).
MarginCollapsingState mcsNew = null;
MarginCollapsingState.CollapseBottomMargin(PtsContext, mbp, mcsContainer, out mcsNew, out marginBottom);
pmcsclientOut = (mcsNew != null) ? mcsNew.Handle : IntPtr.Zero;
// If we exceed fill rectangle after adding bottom border and padding, clip them
dvrUsed += marginBottom + mbp.BPBottom;
dvrUsed = Math.Min(fsrcToFill.dv, dvrUsed);
}
// Since MCS returned by PTS is never passed back, destroy MCS provided by PTS.
// If necessary, new MCS is created and passed back to PTS.
if (mcsContainer != null)
{
mcsContainer.Dispose();
mcsContainer = null;
}
// Adjust fsbbox to account for margins
fsbbox.fsrc.u -= mbp.MBPLeft;
fsbbox.fsrc.du += mbp.MBPLeft + mbp.MBPRight;
if(fswdirSubtrack != fswdir)
{
PTS.FSRECT pageRect = StructuralCache.CurrentFormatContext.PageRect;
PTS.Validate(PTS.FsTransformBbox(fswdirSubtrack, ref pageRect, ref fsbbox, fswdir, out fsbbox));
}
// Update information about first/last chunk
paraClient.SetChunkInfo(pbrkrecIn == IntPtr.Zero, pbrkrecOut == IntPtr.Zero);
}
internal unsafe void FormatParaFinite(
SubpageParaClient paraClient, // IN:
IntPtr pbrkrecIn, // IN: break record---use if !NULL
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: current direction
ref PTS.FSRECT fsrcToFill, // IN: rectangle to fill
MarginCollapsingState mcs, // IN: input margin collapsing state
PTS.FSKCLEAR fskclearIn, // IN: clear property that must be satisfied
PTS.FSKSUPPRESSHARDBREAKBEFOREFIRSTPARA fsksuppresshardbreakbeforefirstparaIn,
// IN: suppress breaks at track start?
out PTS.FSFMTR fsfmtr, // OUT: result of formatting the paragraph
out IntPtr pfspara, // OUT: pointer to the para data
out IntPtr pbrkrecOut, // 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
{
uint fswdirSubpage = PTS.FlowDirectionToFswdir(((FlowDirection)Element.GetValue(FrameworkElement.FlowDirectionProperty)));
int subpageWidth, subpageHeight;
int cColumns;
int marginTop, marginBottom;
MbpInfo mbp;
MarginCollapsingState mcsSubpage, mcsBottom;
PTS.FSRECT fsrcSubpageMargin;
PTS.FSCOLUMNINFO [] columnInfoCollection;
// Currently it is possible to get MCS and BR in following situation:
// At the end of the page there is a paragraph with delayed figure, so the figure
// gets delayed to the next page. But part of the next paragraph fits in the page,
// so it gets broken. PTS creates BR with delayed figure and broken para.
// PTS will format the next page starting from delayed figure, which can produce MCS.
// So when the next paragraph is continued from BR, it has MCS.
// This problem is currently investigated by PTS team: PTSLS bug 915.
// For now, MCS gets ignored here.
//Debug.Assert(pbrkrecIn == IntPtr.Zero || mcs == null, "Broken paragraph cannot have margin collapsing state.");
if (mcs != null && pbrkrecIn != IntPtr.Zero)
{
mcs = null;
}
// Initialize the subpage size and its margin.
fsrcSubpageMargin = new PTS.FSRECT();
subpageWidth = fsrcToFill.du;
subpageHeight = fsrcToFill.dv;
// Set clear property
Invariant.Assert(Element is TableCell || Element is AnchoredBlock);
fskclearIn = PTS.WrapDirectionToFskclear((WrapDirection)Element.GetValue(Block.ClearFloatersProperty));
// Take into account MBPs and modify subpage metrics,
// and make sure that subpage is at least 1 unit wide (cannot measure at width <= 0)
marginTop = 0;
mcsSubpage = null;
// Get MBP info. Since subpage height and width must be at least 1, the max size for MBP is subpage dimensions less 1
mbp = MbpInfo.FromElement(Element, StructuralCache.TextFormatterHost.PixelsPerDip);
if (fswdirSubpage != fswdir)
{
PTS.FSRECT pageRect = StructuralCache.CurrentFormatContext.PageRect;
PTS.Validate(PTS.FsTransformRectangle(fswdir, ref pageRect, ref fsrcToFill, fswdirSubpage, out fsrcToFill));
mbp.MirrorMargin();
}
subpageWidth = Math.Max(1, subpageWidth - (mbp.MBPLeft + mbp.MBPRight));
if (pbrkrecIn == IntPtr.Zero)
{
// Top margin collapsing. If suppresing top space, top margin is always 0.
MarginCollapsingState.CollapseTopMargin(PtsContext, mbp, mcs, out mcsSubpage, out marginTop);
if (PTS.ToBoolean(fSuppressTopSpace))
{
marginTop = 0;
}
subpageHeight = Math.Max(1, subpageHeight - (marginTop + mbp.BPTop));
// Destroy top margin collapsing state (not needed anymore).
if (mcsSubpage != null)
{
mcsSubpage.Dispose();
mcsSubpage = null;
}
}
else
{
Debug.Assert(fSuppressTopSpace == 1, "Top space should be always suppressed at the top of broken paragraph.");
}
fsrcSubpageMargin.du = subpageWidth;
fsrcSubpageMargin.dv = subpageHeight;
// Initialize column info
ColumnPropertiesGroup columnProperties = new ColumnPropertiesGroup(_element);
double lineHeight = DynamicPropertyReader.GetLineHeightValue(_element);
double pageFontSize = (double)_structuralCache.PropertyOwner.GetValue(Block.FontSizeProperty);
FontFamily pageFontFamily = (FontFamily)_structuralCache.PropertyOwner.GetValue(Block.FontFamilyProperty);
// Get columns info, setting ownerIsFlowDocument flag to false. A flow document should not be formatted as a subpage and we
// do not want default column widths to be set on TableCells and floaters
cColumns = PtsHelper.CalculateColumnCount(columnProperties, lineHeight, TextDpi.FromTextDpi(subpageWidth), pageFontSize, pageFontFamily, false);
columnInfoCollection = new PTS.FSCOLUMNINFO[cColumns];
fixed(PTS.FSCOLUMNINFO *rgColumnInfo = columnInfoCollection)
{
PtsHelper.GetColumnsInfo(columnProperties, lineHeight, TextDpi.FromTextDpi(subpageWidth), pageFontSize, pageFontFamily, cColumns, rgColumnInfo, false);
}
// Format subpage
StructuralCache.CurrentFormatContext.PushNewPageData(new Size(TextDpi.FromTextDpi(subpageWidth), TextDpi.FromTextDpi(subpageHeight)),
new Thickness(),
false,
true);
fixed(PTS.FSCOLUMNINFO *rgColumnInfo = columnInfoCollection)
{
PTS.Validate(PTS.FsCreateSubpageFinite(PtsContext.Context, pbrkrecIn, fBRFromPreviousPage, _mainTextSegment.Handle,
footnoteRejector, fEmptyOk, fSuppressTopSpace, fswdir, subpageWidth, subpageHeight,
ref fsrcSubpageMargin, cColumns, rgColumnInfo, PTS.False,
0, null, null, 0, null, null, PTS.FromBoolean(false),
fsksuppresshardbreakbeforefirstparaIn,
out fsfmtr, out pfspara, out pbrkrecOut, out dvrUsed, out fsbbox, out pmcsclientOut, out dvrTopSpace), PtsContext);
}
StructuralCache.CurrentFormatContext.PopPageData();
fskclearOut = PTS.FSKCLEAR.fskclearNone;
if (PTS.ToBoolean(fsbbox.fDefined))
{
// Workaround for PTS bug 860: get max of the page rect and
// bounding box of the page.
dvrUsed = Math.Max(dvrUsed, fsbbox.fsrc.dv + fsbbox.fsrc.v);
fsrcToFill.du = Math.Max(fsrcToFill.du, fsbbox.fsrc.du + fsbbox.fsrc.u);
}
if (pbrkrecIn == IntPtr.Zero) // if first chunk
{
// Take into account MBPs and modify subpage metrics
dvrTopSpace = (mbp.BPTop != 0) ? marginTop : dvrTopSpace;
dvrUsed += (marginTop + mbp.BPTop);
}
if (pmcsclientOut != IntPtr.Zero)
{
mcsSubpage = PtsContext.HandleToObject(pmcsclientOut) as MarginCollapsingState;
PTS.ValidateHandle(mcsSubpage);
pmcsclientOut = IntPtr.Zero;
}
// Initialize subpage metrics
if (fsfmtr.kstop >= PTS.FSFMTRKSTOP.fmtrNoProgressOutOfSpace) // No progress or collision
{
dvrUsed = dvrTopSpace = 0;
//pbrkrecOut = IntPtr.Zero;
//pfspara = IntPtr.Zero;
//pmcsclientOut = IntPtr.Zero;
}
else
{
if (fsfmtr.kstop == PTS.FSFMTRKSTOP.fmtrGoalReached)
{
// Bottom margin collapsing:
// (a) retrieve mcs from the subpage
// (b) do margin collapsing; create a new margin collapsing state
// There is no bottom margin collapsing if paragraph will be continued (output break record is not null).
MarginCollapsingState.CollapseBottomMargin(PtsContext, mbp, mcsSubpage, out mcsBottom, out marginBottom);
pmcsclientOut = (mcsBottom != null) ? mcsBottom.Handle : IntPtr.Zero;
if (pmcsclientOut == IntPtr.Zero) // if last chunk
{
dvrUsed += marginBottom + mbp.BPBottom;
}
}
// Update bounding box
fsbbox.fsrc.u = fsrcToFill.u + mbp.MarginLeft;
fsbbox.fsrc.v = fsrcToFill.v + dvrTopSpace;
fsbbox.fsrc.du = Math.Max(fsrcToFill.du - (mbp.MarginLeft + mbp.MarginRight), 0);
fsbbox.fsrc.dv = Math.Max(dvrUsed - dvrTopSpace, 0);
}
if (fswdirSubpage != fswdir)
{
PTS.FSRECT pageRect = StructuralCache.CurrentFormatContext.PageRect;
PTS.Validate(PTS.FsTransformBbox(fswdirSubpage, ref pageRect, ref fsbbox, fswdir, out fsbbox));
}
// Since MCS returned by PTS is never passed back, destroy MCS provided by PTS.
// If necessary, new MCS is created and passed back to PTS (see above).
if (mcsSubpage != null)
{
mcsSubpage.Dispose();
mcsSubpage = null;
}
// Update information about first/last chunk
paraClient.SetChunkInfo(pbrkrecIn == IntPtr.Zero, pbrkrecOut == IntPtr.Zero);
}
//-------------------------------------------------------------------
// GetMCSClientAfterFloater
//-------------------------------------------------------------------
internal override void GetMCSClientAfterFloater(
uint fswdirTrack, // IN: direction of Track
MarginCollapsingState mcs, // IN: input margin collapsing state
out IntPtr pmcsclientOut) // OUT: MCSCLIENT that floater will return to track
{
// Floaters margins are added during formatting.
if (mcs != null)
{
pmcsclientOut = mcs.Handle;
}
else
{
pmcsclientOut = IntPtr.Zero;
}
}
