--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/textrendering/textformatting/tbox/FormLinePag.cpp Tue Feb 02 02:02:46 2010 +0200
@@ -0,0 +1,156 @@
+/*
+* Copyright (c) 2001-2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+*
+*/
+
+
+#include "FRMPAGE.H"
+#include "FRMCONST.H"
+
+#ifdef SYMBIAN_ENABLE_SPLIT_HEADERS
+#include "FRMCONST_INTERNAL.H"
+#include "FRMCONST_PARTNER.H"
+#endif
+
+TLinePaginator::TLinePaginator():
+ iPageList(NULL),
+ iDocPos(0),
+ iKeepWithPrev(ETrue),
+ iPageHeight(0),
+ iHeightRem(0),
+ iBreakOnPage(EFalse),
+ iPrevPageBreak(0),
+ iHeightLines(0),
+ iFirstLine(ETrue)
+ {
+ }
+
+TBool TLinePaginator::AppendLineL(TPageLine aLine)
+ //
+ {
+ TBool pageBreak=EFalse;
+
+ if(aLine.iStartNewPage && !iFirstLine)
+ {
+ SetPotentialBreakPoint(aLine.iDocPos);
+ InsertPageBreakL();
+ pageBreak=ETrue;
+ }
+ else
+ {
+ if (!iKeepWithPrev)
+ SetPotentialBreakPoint(aLine.iDocPos);
+ if (iHeightRem<iHeightLines+aLine.iLineHeight /*&& !iFirstLine*/)
+ {
+ pageBreak=ETrue;
+ //__ASSERT_DEBUG(!iFirstLine || !iBreakOnPage,Panic()); //###
+ if (iBreakOnPage)
+ {
+ InsertPageBreakL();
+ if (aLine.iLineHeight > iHeightRem)
+ {
+ if (iHeightLines!=0)
+ {
+ SetPotentialBreakPoint(aLine.iDocPos);
+ InsertPageBreakL();
+ }
+ CheckTallLineL(aLine);
+ }
+ }
+ else
+ {
+ if (!iFirstLine)
+ {
+ SetPotentialBreakPoint(aLine.iDocPos);
+ InsertPageBreakL();
+ }
+ CheckTallLineL(aLine); //This picks up tall lines at the start of the document the above one picks up the rest
+ }
+ }
+ }
+
+ iFirstLine=EFalse;
+ iHeightLines+=aLine.iLineHeight;
+ iKeepWithPrev=aLine.iKeepWithNext;
+ return pageBreak;
+ }
+
+void TLinePaginator::InsertPageBreakL()
+ {
+ iBreakOnPage=EFalse;
+ iHeightRem=iPageHeight;
+ iKeepWithPrev=EFalse;
+ TInt deltaDocPos=iDocPos-iPrevPageBreak;
+ __ASSERT_DEBUG(deltaDocPos>0,FormPanic(EFInvalidNumberCharsOnPage));
+ iPageList->AppendL(deltaDocPos);
+ iPrevPageBreak=iDocPos;
+ }
+
+void TLinePaginator::CheckTallLineL(TPageLine& aLine)
+ {
+ while (aLine.iLineHeight>iPageHeight)
+ {
+ aLine.iLineHeight-=iPageHeight;
+ iPageList->AppendL(0);
+ }
+ }
+
+void TLinePaginator::FlushL(TInt aEndDocPos)
+ {
+ SetPotentialBreakPoint(aEndDocPos);
+ InsertPageBreakL();
+ }
+
+void TLinePaginator::SetPageHeight(TInt aPageHeight)
+ {
+ iPageHeight=aPageHeight;
+ iHeightRem=aPageHeight;
+ Reset();
+ }
+
+// It is expected that the array passed in will be an empty one
+void TLinePaginator::SetArray(CArrayFix<TInt>* aCharsPerPage)
+ {
+ iPageList=aCharsPerPage;
+
+ // reset if the array is not (for some reason) already cleared.
+ if (iPageList->Count() > 0)
+ Reset();
+ }
+
+void TLinePaginator::Reset()
+ {
+ iBreakOnPage=EFalse;
+ iKeepWithPrev=ETrue;
+ iPrevPageBreak=iDocPos=0;
+ iFirstLine=ETrue;
+ iHeightRem=iPageHeight;
+
+ ResetArray();
+ }
+
+void TLinePaginator::ResetArray()
+ {
+ iPageList->Reset();
+ iPageList->Compress();
+ }
+
+void TLinePaginator::SetPotentialBreakPoint(TInt aDocPos)
+ {
+ iBreakOnPage=ETrue;
+ iDocPos=aDocPos;
+ iHeightRem-=iHeightLines;
+ iHeightLines=0;
+ }