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; } }