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|
/************************************************************************/
/* */
/* Document Layout and Printing related functionality. */
/* */
/************************************************************************/
# ifndef DOC_LAYOUT_H
# define DOC_LAYOUT_H
# include <psFont.h>
# include "docBuf.h"
# include "utilPs.h"
# include <appDraw.h>
/************************************************************************/
/* */
/* Pixel position on a page */
/* */
/************************************************************************/
# define LP_YPIXELS( add, lp ) \
( (add)->addPageStepPixels* (lp)->lpPage+ \
TWIPStoPIXELS( (add)->addMagnifiedPixelsPerTwip, \
(lp)->lpPageYTwips ) )
/**/
# define BI_TOP_PIXELS( add, bi ) \
LP_YPIXELS( add, &((bi)->biTopPosition) )
# define BI_BELOW_PIXELS( add, bi ) \
LP_YPIXELS( add, &((bi)->biBelowPosition) )
/**/
# define PG_TOP_PIXELS( add, pg ) \
LP_YPIXELS( add, &((pg)->pgTopPosition) )
/**/
# define TL_TOP_PIXELS( add, tl ) LP_YPIXELS( add, &((tl)->tlTopPosition) )
# define TL_BASE_PIXELS( add, tl ) \
( (add)->addPageStepPixels* (tl)->tlTopPosition.lpPage+ \
TWIPStoPIXELS( (add)->addMagnifiedPixelsPerTwip, \
(tl)->tlTopPosition.lpPageYTwips+ (tl)->tlLineAscentTwips ) )
# define TL_BELOW_PIXELS( add, tl ) \
( (add)->addPageStepPixels* (tl)->tlTopPosition.lpPage+ \
TWIPStoPIXELS( (add)->addMagnifiedPixelsPerTwip, \
(tl)->tlTopPosition.lpPageYTwips+ (tl)->tlLineSpacingTwips ) )
/************************************************************************/
/* */
/* The frame in which a series of successive lines in a paragraph is */
/* is formatted. The frame lies on one page, and when the text has to */
/* flow around an illustration, the formatter is called with different */
/* frames for the text above the illustration, at the side of the */
/* illustration and below the illustration. */
/* */
/* Coordinates are absolute coordinates on the page or on the window. */
/* [On the window they are shifted by the scrollbars.] */
/* */
/************************************************************************/
typedef struct ParagraphFrame
{
int pfX0GeometryTwips;
int pfX0TextLinesTwips;
int pfX0FirstLineTwips;
int pfX1GeometryTwips;
int pfX1TextLinesTwips;
int pfPageY1Twips;
int pfX0TextLinesPixels;
int pfX0FirstLinePixels;
int pfX1TextLinesPixels;
int pfX0Pixels;
int pfX1Pixels;
int pfPageHigh;
int pfStripHigh;
int pfHasBottom;
} ParagraphFrame;
/************************************************************************/
/* */
/* Frame in which the regular text on a page is formatted. This is */
/* either the page or a (newspaper style) column on the page. The */
/* page headers and footers get their own block frame. The same */
/* for the footnotes and endnotes. The space for footnotes is however */
/* subtracted from the block frame for the page. */
/* */
/* NOTE that table columns are not implemented with a block frame. */
/* */
/************************************************************************/
typedef struct NotesReservation
{
int nrFirstFootnote;
int nrFootnoteCount;
int nrFtnsepHeight;
int nrFootnoteHeight;
} NotesReservation;
typedef struct BlockFrame
{
int bfX0Twips;
int bfX1Twips;
int bfY0Twips;
int bfY1Twips;
NotesReservation bfNotesReservation;
} BlockFrame;
# define BF_HAS_FOOTNOTES( bf ) \
((bf)->bfNotesReservation.nrFirstFootnote >= 0)
/************************************************************************/
/* */
/* Additional information for the layout of a line of text. Some of */
/* the sfields are used for scratch in the process. */
/* */
/************************************************************************/
typedef struct ParticuleData
{
int pdX0;
int pdWidth;
int pdDecWidth;
int pdVisibleWidth;
int pdTabNumber;
int pdTabKind;
int pdTabPosition;
const AfmFontInfo * pdAfi;
int pdVisiblePixels;
int pdWhiteUnits;
int pdCorrectBy;
} ParticuleData;
/************************************************************************/
/* */
/* Pass through information for a layout job. */
/* */
/************************************************************************/
typedef int (*LAYOUT_SCREEN_LINE)( TextLine * tl,
const BufferItem * bi,
int part,
int accepted,
AppDrawingData * add,
const ParagraphFrame * ffPixels,
ParticuleData * pd );
typedef int (*START_PARAGRAPH)( BufferItem * bi,
AppDrawingData * add,
const DocumentProperties * dp );
typedef void (*SCREEN_FRAME)( ParagraphFrame * pf,
const AppDrawingData * add,
const BufferItem * bi );
typedef int (*START_SCREEN_PARAGRAPH)(
BufferItem * bi,
AppDrawingData * add,
BufferDocument * bd );
typedef int (*START_ROW)( BufferItem * rowBi,
AppDrawingData * add,
BufferDocument * bd );
typedef struct ScreenLayout
{
START_ROW slStartRow;
START_SCREEN_PARAGRAPH slStartParagraph;
SCREEN_FRAME slScreenFrame;
LAYOUT_SCREEN_LINE slLayoutLine;
} ScreenLayout;
/************************************************************************/
/* */
/* A Layout Job. */
/* */
/* A) The rectangle that is to be redrawn on the screen. Coordinates */
/* are in pixels, but relative to the document as a whole. ( Not */
/* dependent on the position of the scrollbars. ) In non */
/* interactive layout jobs this is a NULL pointer. */
/* B) Drawing data for font information, scaling from wips to pixels */
/* etc. */
/* C) The document as a whole. */
/* D) The Node in the document tree that initiated the layout job. */
/* */
/* E) The current position on paper of the layout job. */
/* */
/* F) Indirection for screen calculations when laying out the */
/* document. */
/* G) Indirection for screen calculations when just placing the lines */
/* in the document again. */
/* */
/************************************************************************/
typedef struct LayoutJob
{
DocumentRectangle * ljChangedRectanglePixels; /* A */
AppDrawingData * ljAdd; /* B */
BufferDocument * ljBd; /* C */
BufferItem * ljChangedItem; /* D */
LayoutPosition ljPosition; /* E */
ScreenLayout ljLayoutScreen; /* F */
ScreenLayout ljPlaceScreen; /* G */
} LayoutJob;
/************************************************************************/
/* */
/* For formatting a series of paragraphs. ( Inside a Cell or just */
/* below eachother ) */
/* */
/************************************************************************/
typedef struct ParagraphStripPosition
{
int pspPara;
int pspPart;
int pspLine;
} ParagraphStripPosition;
typedef struct ParagraphLayoutPosition
{
ParagraphStripPosition plpProgress;
LayoutPosition plpPos;
ParagraphFrame plpFormattingFrame;
} ParagraphLayoutPosition;
typedef struct ParagraphLayoutJob
{
int pljParaUpto;
ParagraphLayoutPosition pljPos;
ParagraphLayoutPosition pljPos0;
int pljStopWhenSame;
int pljPageToFinish;
int pljColumnToFinish;
} ParagraphLayoutJob;
struct ParagraphLayoutContext;
typedef int (*LAYOUT_LINES)(
ParagraphLayoutPosition * plp,
BlockFrame * bf,
const struct ParagraphLayoutContext * plc,
BufferItem * bi );
typedef void (*ADJUST_BOTTOM)( int * pChanged,
BufferItem * bi,
const LayoutPosition * lp,
AppDrawingData * add,
DocumentRectangle * drChanged );
typedef struct ParagraphLayoutContext
{
DocumentRectangle * plcChangedRectanglePixels;
AppDrawingData * plcAdd;
BufferDocument * plcBd;
ScreenLayout plcScreenLayout;
START_PARAGRAPH plcStartParagraph;
LAYOUT_LINES plcLayoutLines;
ADJUST_BOTTOM plcAdjustBottom;
} ParagraphLayoutContext;
typedef int (*LAYOUT_EXTERNAL)( int * pY1Twips,
ExternalItem * ei,
int page,
int y0Twips,
BufferDocument * bd,
AppDrawingData * add,
DocumentRectangle * drChanged );
/************************************************************************/
/* */
/* Routine declarations. */
/* */
/************************************************************************/
extern void docPsInitLayoutJob( LayoutJob * lj );
extern void docPsCleanLayoutJob( LayoutJob * lj );
extern int docLayoutLineBox( TextLine * tl,
const BufferItem * bi,
int part,
int tabInterval,
const DocumentFontList * dfl,
AppPhysicalFontList * apfl,
const TextParticule * tp,
ParticuleData * pd,
const ParagraphFrame * pf );
extern AfmFontInfo * docPsPrintGetAfi(
int * pEncoding,
const AppPhysicalFontList * apfl,
int physf );
extern int docPsClaimParticuleData( const BufferItem * bi,
ParticuleData ** pData );
extern int docPsParagraphLineExtents( const AppPhysicalFontList * apfl,
BufferItem * bi );
extern int docPsPrintGetItemFonts(
PostScriptFaceList * psfl,
const BufferItem * bi,
DocumentFontList * dfl,
const AppPhysicalFontList * apfl );
extern int docPsPrintDocument(
FILE * f,
const char * title,
const char * applicationName,
const char * applicationReference,
AppDrawingData * add,
BufferDocument * bd,
const PrintGeometry * pg,
int firstPage,
int lastPage,
LAYOUT_EXTERNAL layoutExternal,
DOC_CLOSE_OBJECT closeObject );
extern int docLayoutItemAndParents( BufferItem * bi,
LayoutJob * lj );
extern int docPsAdjustParaLayout( BufferItem * bi,
int line,
int stroffShift,
int upto,
LayoutJob * lj );
extern void docLayoutSectColumnTop(
BufferItem * bodySectBi,
BufferDocument * bd,
LayoutPosition * lpTop,
BlockFrame * bf );
extern int docPsListObjectFonts( PostScriptFaceList * psfl,
const InsertedObject * io,
const char * afmDirectory,
const char * prefix );
extern int docLayoutExternalItem( ExternalItem * ei,
DocumentRectangle * drChanged,
int pageNumber,
int y0Twips,
BufferDocument * bd,
const BufferItem * sectBi,
AppDrawingData * add,
LAYOUT_EXTERNAL layoutExternal,
DOC_CLOSE_OBJECT closeObject );
extern int docLayoutParagraphsInStrip(
ParagraphLayoutJob * plj,
BlockFrame * bf,
const ParagraphLayoutContext * plc,
BufferItem * cellBi,
int paraUpto,
int bottomTwips,
int stripHigh );
extern int docLayoutParagraphs( const ParagraphLayoutContext * plc,
BufferItem * cellBi,
BlockFrame * bf,
LayoutJob * lj,
ParagraphLayoutJob * plj );
extern void docPsInitParagraphLayoutJob( ParagraphLayoutJob * plj );
extern void docLayoutToNextColumn( BufferItem * bi,
BufferDocument * bd,
LayoutPosition * lpTop,
BlockFrame * bf );
extern void docPsBeginParagraphLayoutProgress( ParagraphLayoutJob * plj,
int para,
int line,
int part,
int pUpto,
const LayoutPosition * lp );
extern int docLayoutRowItem( BufferItem * rowBi,
BlockFrame * bf,
LayoutJob * lj,
const ParagraphLayoutContext * plc );
extern void docPsLayoutPushBottomDown( LayoutPosition * lpRowBottom,
const LayoutPosition * lpColBottom );
extern void docParagraphFrameTwips(
ParagraphFrame * pf,
const BlockFrame * bf,
int bottom,
int stripHigh,
BufferItem * bi );
extern void docPsAdvanceParagraphLayout(
int * pAdvanced,
ParagraphStripPosition * psp0,
const ParagraphStripPosition * psp00,
const ParagraphStripPosition * psp1,
int page,
const BufferItem * cellBi );
extern void docParagraphStripFrame(
const ScreenLayout * sl,
BufferItem * cellBi,
AppDrawingData * add,
int bottomTwips,
int stripHigh,
const BlockFrame * bf,
ParagraphLayoutJob * plj );
extern void docBlockFrameTwips( BlockFrame * bf,
BufferItem * bi,
const BufferDocument * bd,
int page,
int column );
extern void docLayoutInitBlockFrame( BlockFrame * bf );
extern void docInitNotesReservation( NotesReservation * nr );
extern void docLayoutReserveNoteHeight(
ParagraphFrame * pf,
BlockFrame * bf,
const NotesReservation * nrLine );
extern int docLayoutFootnotesForColumn( const BlockFrame * refBf,
const LayoutPosition * lpBelowText,
const LayoutJob * refLj );
extern int docLayoutCollectParaFootnoteHeight(
NotesReservation * nr,
int referringPage,
int referringColumn,
BufferDocument * bd,
const BufferItem * paraBi,
int partFrom,
int partUpto );
extern int docCollectFootnotesForColumn(
BlockFrame * bf,
const DocumentPosition * dpHere,
const LayoutJob * refLj );
extern int docNoteSeparatorRectangle( DocumentRectangle * drExtern,
ExternalItem ** pEiNoteSep,
int * pY0Twips,
BufferDocument * bd,
const DocumentNote * dnFirstNote,
int extItKind,
const AppDrawingData * add );
extern int docGetExternalItemBox(
DocumentRectangle * dr,
const BufferItem * bodySectBi,
const ExternalItem * ei,
int justUsed,
int page,
BufferDocument * bd,
AppDrawingData * add );
extern int docExternalItemPrelayout( ExternalItem * ei,
const DocumentGeometry * dgRef,
LayoutJob * lj );
extern int docLayoutItemImplementation( BufferItem * bi,
BlockFrame * bf,
LayoutJob * lj );
extern int docSectHeaderFooterPrelayout( BufferItem * sectBi,
LayoutJob * lj );
extern int docLayoutEndnotesForSection( int sect,
BlockFrame * bf,
LayoutJob * lj );
extern int docLayoutEndnotesForDocument( BlockFrame * bf,
LayoutJob * lj );
# endif /* DOC_LAYOUT_H */
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