-static ArtVpath* gfxline_to_ArtVpath(gfxline_t*line)
-{
- ArtVpath *vec = NULL;
- int pos=0,len=0;
- gfxline_t*l2;
- double x=0,y=0;
-
- /* factor which determines into how many line fragments a spline is converted */
- double subfraction = 2.4;//0.3
-
- l2 = line;
- while(l2) {
- if(l2->type == gfx_moveTo) {
- pos ++;
- } if(l2->type == gfx_lineTo) {
- pos ++;
- } if(l2->type == gfx_splineTo) {
- int parts = (int)(sqrt(fabs(l2->x-2*l2->sx+x) + fabs(l2->y-2*l2->sy+y))*subfraction);
- if(!parts) parts = 1;
- pos += parts + 1;
- }
- x = l2->x;
- y = l2->y;
- l2 = l2->next;
- }
- pos++;
- len = pos;
-
- vec = art_new (ArtVpath, len);
-
- pos = 0;
- l2 = line;
- while(l2) {
- if(l2->type == gfx_moveTo) {
- vec[pos].code = ART_MOVETO;
- vec[pos].x = l2->x;
- vec[pos].y = l2->y;
- pos++;
- assert(pos<=len);
- } else if(l2->type == gfx_lineTo) {
- vec[pos].code = ART_LINETO;
- vec[pos].x = l2->x;
- vec[pos].y = l2->y;
- pos++;
- assert(pos<=len);
- } else if(l2->type == gfx_splineTo) {
- int i;
- int parts = (int)(sqrt(fabs(l2->x-2*l2->sx+x) + fabs(l2->y-2*l2->sy+y))*subfraction);
- if(!parts) parts = 1;
- for(i=0;i<=parts;i++) {
- double t = (double)i/(double)parts;
- vec[pos].code = ART_LINETO;
- vec[pos].x = l2->x*t*t + 2*l2->sx*t*(1-t) + x*(1-t)*(1-t);
- vec[pos].y = l2->y*t*t + 2*l2->sy*t*(1-t) + y*(1-t)*(1-t);
- pos++;
- assert(pos<=len);
- }
- }
- x = l2->x;
- y = l2->y;
- l2 = l2->next;
- }
- vec[pos].code = ART_END;
-
- return vec;
-}
-
-static ArtSVP* gfxfillToSVP(gfxline_t*line)
-{
- ArtVpath* vec = gfxline_to_ArtVpath(line);
- ArtSVP *svp = art_svp_from_vpath(vec);
- free(vec);
- return svp;
-}
-
-static ArtSVP* gfxstrokeToSVP(gfxline_t*line, gfxcoord_t width, gfx_capType cap_style, gfx_joinType joint_style, double miterLimit)
-{
- ArtVpath* vec = gfxline_to_ArtVpath(line);
- ArtSVP *svp = art_svp_vpath_stroke (vec,
- (joint_style==gfx_joinMiter)?ART_PATH_STROKE_JOIN_MITER:
- ((joint_style==gfx_joinRound)?ART_PATH_STROKE_JOIN_ROUND:
- ((joint_style==gfx_joinBevel)?ART_PATH_STROKE_JOIN_BEVEL:ART_PATH_STROKE_JOIN_BEVEL)),
- (cap_style==gfx_capButt)?ART_PATH_STROKE_CAP_BUTT:
- ((cap_style==gfx_capRound)?ART_PATH_STROKE_CAP_ROUND:
- ((cap_style==gfx_capSquare)?ART_PATH_STROKE_CAP_SQUARE:ART_PATH_STROKE_CAP_SQUARE)),
- width, //line_width
- miterLimit, //miter_limit
- 0.05 //flatness
- );
- free(vec);
- return svp;
-}
-
-static gfxline_t* SVPtogfxline(ArtSVP*svp)
-{
- int size = 0;
- int t;
- int pos = 0;
- for(t=0;t<svp->n_segs;t++) {
- size += svp->segs[t].n_points + 1;
- }
- gfxline_t* lines = (gfxline_t*)rfx_alloc(sizeof(gfxline_t)*size);
-
- for(t=0;t<svp->n_segs;t++) {
- ArtSVPSeg* seg = &svp->segs[t];
- int p;
- for(p=0;p<seg->n_points;p++) {
- lines[pos].type = p==0?gfx_moveTo:gfx_lineTo;
- ArtPoint* point = &seg->points[p];
- lines[pos].x = point->x;
- lines[pos].y = point->y;
- lines[pos].next = &lines[pos+1];
- pos++;
- }
- }
- if(pos) {
- lines[pos-1].next = 0;
- return lines;
- } else {
- return 0;
- }
-}
-