Eliminate Forced pagination problems in IP2 Bck

Resize figures when figure is bigger than page
Remove {NULLDOCCURPAGE} when processing page numbers

PROMS/Volian.Print.Library/Pagination.cs

@@ -243,12 +243,31 @@ namespace Volian.Print.Library
 			//  ResetDocStyleAndValues(ref yTopMargin, ref yBottomMargin);
 			if (MyPageHelper.DidFirstPageDocStyle && (MyItemInfo.MyActiveSection.MyDocStyle.StructureStyle.Where & E_DocStyleUse.UseOnAllButFirstPage) > 0)
 				yPageSizeNextPage = GetYPageSizeUseOnAllButFirstPage();
-			if (KeepStepsOnPage && !MyItemInfo.ActiveFormat.PlantFormat.FormatData.SectData.StepSectionData.StepSectionLayoutData.PaginateOnLowerStepLevel && YSize == ySizeIncludingFirst && YSize + yEndMsg > yWithinMargins)
+
+			if (KeepStepsOnPage 
+				&& !MyItemInfo.ActiveFormat.PlantFormat.FormatData.SectData.StepSectionData.StepSectionLayoutData.PaginateOnLowerStepLevel 
+				&& YSize == ySizeIncludingFirst 
+				&& YSize + yEndMsg > yWithinMargins) 
 			{
 				// If the first step is the size of the entire step and the step has an end message then don't try to break the step
 				KeepStepsOnPage = false;
 				//_MyLog.WarnFormat("Kick Step to Next Page {0},{1}", MyItemInfo.ItemID, MyItemInfo.ShortPath);
 			}
+			if (yWithinMargins < SixLinesPerInch) KeepStepsOnPage = false;  // if there is no room to print, don't keep steps on the page
+			// The following was added for IP2 background printing.  There were situations where there was a HLS and its paragraph was
+			// put on next page (IP2 bck: E-3/References), and a paragraph was writing into the footer (FR-H.1 step 2.2.3.1.  KBR 10/14/14)
+			if (KeepStepsOnPage
+				&& MyItemInfo.ActiveFormat.PlantFormat.FormatData.SectData.StepSectionData.StepSectionLayoutData.PaginateOnLowerStepLevel
+				&& YSize == ySizeIncludingFirst
+				&& ((ChildrenBelow.Count >= 1 && ChildrenBelow[0].MyItemInfo.IsParagraph && ChildrenBelow[0].ChildrenBelow.Count == 0)
+					|| ChildrenBelow.Count == 0))
+			{
+				KeepStepsOnPage = false;
+			}
+
+			// Keep figure (the only figure, i.e. count==1) with its parent.
+			if (ChildrenBelow.Count == 1 && ChildrenBelow[0].MyItemInfo.IsFigure) KeepStepsOnPage = false;
+
 			if (!KeepWithHeader && !KeepStepsOnPage && YSize - SixLinesPerInch + yEndMsg <= yPageSizeNextPage)	// if the entire step can fit on one page, do a page break
 			{
 				// Don't want extra line before step

PROMS/Volian.Print.Library/VlnSvgPageHelper.cs

@@ -2055,6 +2055,8 @@ namespace Volian.Print.Library
 					return ItemInfo.RomanNumbering(CurrentPageNumber).ToLower();
 				case "{SETREV}":
 					return MySection.MyDocVersion.DocVersionConfig.ProcedureSetRev;
+				case "{NULLDOCCURPAGE}":
+					return "";
 			}
 			if (!_MissingTokens.Contains(match.Value))
 			{

PROMS/Volian.Print.Library/vlnParagraph.cs

@@ -795,7 +795,11 @@ namespace Volian.Print.Library
 				yPageStart = yTopMargin + YVeryTop;
 				yLocation = yPageStart - YOffset;  // yLocation is physical location from bottom of page.
 			}
-			if (yLocation - Height < 24) _MyLog.WarnFormat("Very Low {0},{1},{2},{3},{4},{5}",MyItemInfo.ShortPath,MyItemInfo.ItemID,yLocation,Height,yLocation-Height,yTopMargin - MyItemInfo.MyDocStyle.Layout.PageLength);
+			if (yLocation - Height < 24)
+			{
+				if (DebugPagination.IsOpen)	
+					DebugPagination.WriteLine("Very Low {0},{1},{2},{3},{4},{5}", MyItemInfo.ShortPath, MyItemInfo.ItemID, yLocation, Height, yLocation - Height, yTopMargin - MyItemInfo.MyDocStyle.Layout.PageLength);
+			}
 			retval = Rtf2Pdf.TextAt(cb, IParagraph, XOffset, yLocation, Width, 100, DebugInfo + string.Format(",YLines = {0}",YSize/SixLinesPerInch), yBottomMargin);
 			if (retval == 0)		// problem occurred - paragraph was not able to be printed on page
 			{						// pagination logic needs to be fixed.
@@ -1918,6 +1922,13 @@ namespace Volian.Print.Library
 			get { return _Suffix; }
 			set { _Suffix = value; }
 		}
+		private float RoughSizeOfPage
+		{
+			get
+			{
+				return (float)(MyItemInfo.MyDocStyle.Layout.PageLength - MyItemInfo.MyDocStyle.Layout.TopMargin - MyItemInfo.MyDocStyle.Layout.FooterLength);
+			}
+		}
 		public vlnParagraph(vlnParagraph parent, PdfContentByte cb, ItemInfo itemInfo, float xoff, float yoff, int rnoLevel, int maxRNO, FormatInfo formatInfo, string prefix, string suffix, float yoffRightParent, bool loadChildren)
 		{
 			Prefix = prefix;
@@ -2393,7 +2404,10 @@ namespace Volian.Print.Library
 							string[] vals = val.Split("\n".ToCharArray());
 							Width = Int32.Parse(vals[3], System.Globalization.NumberStyles.AllowHexSpecifier) * MyItemInfo.FormatStepData.Font.CharsToTwips;
 							int lines = Int32.Parse(vals[2], System.Globalization.NumberStyles.AllowHexSpecifier);
-							Height = lines * SixLinesPerInch;
+							// Check that the Height of figure isn't too big to fit on the page, if it is
+							// set the Height to the printable part of page - Height of the HLS and an extra line
+							// for between HLS & figure.
+							Height = Math.Min(lines * SixLinesPerInch, RoughSizeOfPage - MyParent.Height - SixLinesPerInch);
 							//yForCheckoff = yoff + Height - SixLinesPerInch;
 							if (dropCheckoff)
 								yForCheckoff += Height - SixLinesPerInch; // place checkoff on last row of text