97 lines
3.2 KiB
C
97 lines
3.2 KiB
C
#ifndef DISPMISC_DEFINED
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#define DISPMISC_DEFINED
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#include "lsidefs.h"
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#include "plsdnode.h"
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#include "plssubl.h"
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#include "lstflow.h"
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// Rectangle (usually clip rectangle) in local coordinate system
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//
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// U grows to the right, v grows up, so normally upLeft < upRight, vpTop > vpBottom
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// Upper left corner belongs to the rectangle, lower right corner doesn't.
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// That means:
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// upRight - upLeft equals dupLength.
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// Rectangle that contains one point (0,0) is {0,0,-1,1}.
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// Shading rectangle for dnode starting at (u0,v0) is {u0, v0+dvpAscent, u0+dupLen, v0-dvpDescent}
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// Note this last line reflects the big LS convention:
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// v0+dvpAscent belongs to line, v0-dvpDescent doesn't.
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typedef struct tagRECTUV
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{
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long upLeft;
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long vpTop;
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long upRight;
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long vpBottom;
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} RECTUV;
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typedef const RECTUV* PCRECTUV;
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typedef RECTUV* PRECTUV;
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/* CreateDisplayTree sets plsdnUpTemp in sublines to be displayed with given subline,
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* rejects wrong sublines, submitted for display, sets fAcceptedForDisplay in good ones
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*/
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void CreateDisplayTree(PLSSUBL); /* IN: the uppermost subline */
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/* DestroyDisplayTree nulls plsdnUpTemp in sublines displayed with given subline.
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*/
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void DestroyDisplayTree(PLSSUBL); /* IN: the uppermost subline */
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/* AdvanceToNextNode moves to the next dnode to be displayed (maybe changing sublines),
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* updating current pen, returning pointer to the next dnode
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*/
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PLSDNODE AdvanceToNextDnode(PLSDNODE, /* IN: current dnode */
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LSTFLOW, /* IN: current (main) text flow */
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POINTUV*); /* INOUT: current pen position (u,v) */
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PLSDNODE AdvanceToFirstDnode(PLSSUBL, /* IN: main subline */
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LSTFLOW, /* IN: current (main) text flow */
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POINTUV*); /* INOUT: current pen position (u,v) */
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/* AdvanceToNextSubmittingDnode moves to the next dnode which submitted for display,
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* updating current pen, returning pointer to the next dnode
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*/
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PLSDNODE AdvanceToNextSubmittingDnode(
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PLSDNODE, /* IN: current dnode */
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LSTFLOW, /* IN: current (main) text flow */
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POINTUV*); /* INOUT: current pen position (u,v) */
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PLSDNODE AdvanceToFirstSubmittingDnode(
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PLSSUBL, /* IN: main subline */
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LSTFLOW, /* IN: current (main) text flow */
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POINTUV*); /* INOUT: current pen position (u,v) */
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// NB Victork - following functions were used only for upClipLeft, upClipRight optimization.
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// If we'll decide that we do need that optimization after Word integration - I'll uncomment.
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#ifdef NEVER
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/* RectUVFromRectXY calculates (clip) rectangle in local (u,v) coordinates given
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(clip) rectangle in (x,y) and point of origin */
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void RectUVFromRectXY(const POINT*, /* IN: point of origin for local coordinates (x,y) */
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const RECT*, /* IN: input rectangle (x,y) */
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LSTFLOW, /* IN: local text flow */
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PRECTUV); /* OUT: output rectangle (u,v) */
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/* RectXYFromRectUV calculates rectangle in (x,y) coordinates given
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rectangle in local (u,v) coordinates and point of origin (x,y) */
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void RectXYFromRectUV(const POINT*, /* IN: point of origin for local coordinates (x,y) */
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PCRECTUV, /* IN: input rectangle (u,v) */
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LSTFLOW, /* IN: local text flow */
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RECT*); /* OUT: output rectangle (x,y) */
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#endif /* NEVER */
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#endif
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