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Diffstat (limited to 'src/Type1/paths.h')
| -rw-r--r-- | src/Type1/paths.h | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/src/Type1/paths.h b/src/Type1/paths.h new file mode 100644 index 0000000..e52a760 --- /dev/null +++ b/src/Type1/paths.h @@ -0,0 +1,197 @@ +/* $Xorg: paths.h,v 1.3 2000/08/17 19:46:31 cpqbld Exp $ */ +/* Copyright International Business Machines, Corp. 1991 + * All Rights Reserved + * Copyright Lexmark International, Inc. 1991 + * All Rights Reserved + * + * License to use, copy, modify, and distribute this software and its + * documentation for any purpose and without fee is hereby granted, + * provided that the above copyright notice appear in all copies and that + * both that copyright notice and this permission notice appear in + * supporting documentation, and that the name of IBM or Lexmark not be + * used in advertising or publicity pertaining to distribution of the + * software without specific, written prior permission. + * + * IBM AND LEXMARK PROVIDE THIS SOFTWARE "AS IS", WITHOUT ANY WARRANTIES OF + * ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO ANY + * IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, + * AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. THE ENTIRE RISK AS TO THE + * QUALITY AND PERFORMANCE OF THE SOFTWARE, INCLUDING ANY DUTY TO SUPPORT + * OR MAINTAIN, BELONGS TO THE LICENSEE. SHOULD ANY PORTION OF THE + * SOFTWARE PROVE DEFECTIVE, THE LICENSEE (NOT IBM OR LEXMARK) ASSUMES THE + * ENTIRE COST OF ALL SERVICING, REPAIR AND CORRECTION. IN NO EVENT SHALL + * IBM OR LEXMARK BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL + * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR + * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS + * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF + * THIS SOFTWARE. + */ +/*SHARED*/ + +#define Loc(S,x,y) t1_Loc(S,(double)x,(double)y) +#define ILoc(S,x,y) t1_ILoc(S,x,y) +#define Line(P) t1_Line(P) +#define Join(p1,p2) t1_Join(p1,p2) +#define ClosePath(p) t1_ClosePath(p,0) +#define CloseLastSubPath(p) t1_ClosePath(p,1) +#define Conic(B,C,s) t1_Conic(B,C,(double)s) +#define RoundConic(M,C,r) t1_RoundConic(M,C,(double)r) +#define ArcP3(S,P2,P3) t1_ArcP3(S,P2,P3) +#define ArcCA(S,C,d) t1_ArcCA(S,C,(double)d) +#define Bezier(B,C,D) t1_Bezier(B,C,D) +#define Hint(S,r,w,o,h,a,d,l) t1_Hint(S,r,w,o,h,a,d,l) +#define Reverse(p) t1_Reverse(p) +#define ReverseSubPaths(p) t1_ReverseSubPaths(p) +#define AddLoc(p1,p2) t1_Join(p1,p2) +#define SubLoc(p1,p2) t1_SubLoc(p1,p2) +#define DropSegment(p) t1_DropSegment(p) +#define HeadSegment(p) t1_HeadSegment(p) +#define QueryLoc(P,S,x,y) t1_QueryLoc(P,S,x,y) +#define QueryPath(p,t,B,C,D,r) t1_QueryPath(p,t,B,C,D,r) +#define QueryBounds(p,S,x1,y1,x2,y2) t1_QueryBounds(p,S,x1,y1,x2,y2) + + +struct segment *t1_Loc(); /* create a location object (or "move" segment) */ +struct segment *t1_ILoc(); /* integer argument version of same */ +struct segment *t1_Line(); /* straight line path segment */ +struct segment *t1_Join(); /* join two paths or regions together */ +struct segment *t1_ClosePath(); /* close a path or path set */ +struct conicsegment *t1_Conic(); /* conic curve path segment */ +struct conicsegment *t1_RoundConic(); /* ditto, specified another way */ +struct conicsegment *t1_ArcP3(); /* circular path segment with three points */ +struct conicsegment *t1_ArcCA(); /* ditto, with center point and angle */ +struct beziersegment *t1_Bezier(); /* Bezier third order curve path segment */ +struct hintsegment *t1_Hint(); /* produce a font 'hint' path segment */ +struct segment *t1_Reverse(); /* reverse the complete order of paths */ +struct segment *t1_ReverseSubPaths(); /* reverse only sub-paths; moves unchanged */ +struct segment *t1_SubLoc(); /* subtract two location objects */ +struct segment *t1_DropSegment(); /* Drop the first segment in a path */ +struct segment *t1_HeadSegment(); /* return the first segment in a path */ +void t1_QueryLoc(); /* Query location; return its (x,y) */ +void t1_QueryPath(); /* Query segment at head of a path */ +void t1_QueryBounds(); /* Query the bounding box of a path */ + +/*END SHARED*/ +/*SHARED*/ + +#define CopyPath(p) t1_CopyPath(p) +#define KillPath(p) t1_KillPath(p) +#define PathTransform(p,m) t1_PathXform(p,m) +#define PathDelta(p,pt) t1_PathDelta(p,pt) +#define BoundingBox(h,w) t1_BoundingBox(h,w) +#define PathSegment(t,x,y) t1_PathSegment(t,(fractpel)x,(fractpel)y) +#define JoinSegment(b,t,x,y,a) t1_JoinSegment(b,t,(fractpel)x,(fractpel)y,a) +#define Hypoteneuse(dx,dy) t1_Hypoteneuse(dx,dy) +#define BoxPath(S,h,w) t1_BoxPath(S,h,w) + +struct segment *t1_CopyPath(); /* duplicate a path */ +void t1_KillPath(); /* destroy a path */ +struct segment *t1_PathXform(); /* transform a path arbitrarily */ +void t1_PathDelta(); /* calculate the ending point of a path */ +struct segment *t1_PathSegment(); /* produce a MOVE or LINE segment */ +struct segment *t1_JoinSegment(); /* join a MOVE or LINE segment to a path */ +double t1_Hypoteneuse(); /* returns the length of a line */ +struct segment *t1_BoxPath(); /* returns a rectangular path */ + +/*END SHARED*/ +/*SHARED*/ + +#define ConsumePath(p) MAKECONSUME(p,KillPath(p)) +#define UniquePath(p) MAKEUNIQUE(p,CopyPath(p)) + +/*END SHARED*/ +/*SHARED*/ + +struct segment { + XOBJ_COMMON /* xobject common data define 3-26-91 PNM */ + unsigned char size; /* size of the structure */ + unsigned char context; /* index to device context */ + struct segment *link; /* pointer to next structure in linked list */ + struct segment *last; /* pointer to last structure in list */ + struct fractpoint dest; /* relative ending location of path segment */ +} ; + +#define ISCLOSED(flag) ((flag)&0x80) /* subpath is closed */ +#define LASTCLOSED(flag) ((flag)&0x40) /* last segment in closed subpath */ + +/* +NOTE: The ISCLOSED flag is set on the MOVETYPE segment before the +subpath proper; the LASTCLOSED flag is set on the last segment (LINETYPE) +in the subpath + +We define the ISPATHANCHOR predicate to test that a path handle +passed by the user is valid: +*/ + +#define ISPATHANCHOR(p) (ISPATHTYPE(p->type)&&p->last!=NULL) + +/* +For performance reasons, a user's "location" object is identical to +a path whose only segment is a move segment. We define a predicate +to test for this case. See also :hdref refid=location.. +*/ + +#define ISLOCATION(p) ((p)->type == MOVETYPE && (p)->link == NULL) + +/*END SHARED*/ +/*SHARED*/ + +struct conicsegment { + XOBJ_COMMON /* xobject common data define 3-26-91 PNM */ + /* type = CONICTYPE */ + unsigned char size; /* as with any 'segment' type */ + unsigned char context; /* as with any 'segment' type */ + struct segment *link; /* as with any 'segment' type */ + struct segment *last; /* as with any 'segment' type */ + struct fractpoint dest; /* Ending point (C point) */ + struct fractpoint M; /* "midpoint" of conic explained above */ + float roundness; /* explained above */ +} ; +/*END SHARED*/ +/*SHARED*/ + +struct beziersegment { + XOBJ_COMMON /* xobject common data define 3-26-91 PNM */ + /* type = BEZIERTYPE */ + unsigned char size; /* as with any 'segment' type */ + unsigned char context; /* as with any 'segment' type */ + struct segment *link; /* as with any 'segment' type */ + struct segment *last; /* as with any 'segment' type */ + struct fractpoint dest; /* ending point (D) */ + struct fractpoint B; /* control point B */ + struct fractpoint C; /* control point C */ +} ; + +/*END SHARED*/ +/*SHARED*/ + +struct hintsegment { + XOBJ_COMMON /* xobject common data define 3-26-91 PNM */ + /* type = HINTTYPE */ + unsigned char size; /* size of the structure */ + unsigned char context; /* device context */ + struct segment *link; /* pointer to next structure in linked list */ + struct segment *last; /* pointer to last structure in list */ + struct fractpoint dest; /* ALWAYS 0,0 */ + struct fractpoint ref; + struct fractpoint width; + char orientation; + char hinttype; + char adjusttype; + char direction; + int label; +} ; + +/*END SHARED*/ +/*SHARED*/ + +/* +CONCAT links the 'p2' path chain on the end of the 'p1' chain. (This macro +is also used by the STROKES module.) +*/ +#define CONCAT(p1, p2) { \ + p1->last->link = p2; /* link p2 on end of p1 */ \ + p1->last = p2->last; /* last of new is last of p2 */ \ + p2->last = NULL; } /* only first segment has non-NULL "last" */ + +/*END SHARED*/ |