diff options
Diffstat (limited to 'map.c')
| -rw-r--r-- | map.c | 44 |
1 files changed, 43 insertions, 1 deletions
@@ -1,4 +1,4 @@ -/* $Id: map.c,v 1.10 2002/11/05 17:12:02 ukai Exp $ */ +/* $Id: map.c,v 1.12 2002/11/06 15:08:06 ukai Exp $ */ /* * client-side image maps */ @@ -57,6 +57,30 @@ inMapArea(MapArea * a, int x, int y) } return FALSE; } + +static int +nearestMapArea(MapList *ml, int x, int y) +{ + ListItem *al; + MapArea *a; + int i, l, n = 0, min = -1, limit = pixel_per_char * pixel_per_char + + pixel_per_line * pixel_per_line; + + if (!ml || !ml->area) + return n; + for (i = 0, al = ml->area->first; al != NULL; i++, al = al->next) { + a = (MapArea *) al->ptr; + if (a) { + l = (a->center_x - x) * (a->center_x - x) + + (a->center_y - y) * (a->center_y - y); + if ((min < 0 || l < min) && l < limit) { + n = i; + min = l; + } + } + } + return n; +} #endif MapArea * @@ -113,7 +137,11 @@ follow_map_menu(Buffer *buf, struct parsed_tagarg * arg, Anchor *a_img, int x, } label[n] = NULL; if (initial == -n) +#ifdef USE_IMAGE + initial = map ? nearestMapArea(ml, px, py) : 0; +#else initial = 0; +#endif else if (initial < 0) initial *= -1; @@ -223,6 +251,8 @@ newMapArea(char *url, char *target, char *alt, char *shape, char *coords) } a->coords = NULL; a->ncoords = 0; + a->center_x = 0; + a->center_y = 0; if (a->shape == SHAPE_UNKNOWN || a->shape == SHAPE_DEFAULT) return a; if (!coords) { @@ -271,6 +301,18 @@ newMapArea(char *url, char *target, char *alt, char *shape, char *coords) a->coords[a->ncoords] = a->coords[0]; a->coords[a->ncoords + 1] = a->coords[1]; } + if (a->shape == SHAPE_CIRCLE) { + a->center_x = a->coords[0]; + a->center_y = a->coords[1]; + } + else { + for (i = 0; i < a->ncoords / 2; i++) { + a->center_x += a->coords[2 * i]; + a->center_y += a->coords[2 * i + 1]; + } + a->center_x /= a->ncoords / 2; + a->center_y /= a->ncoords / 2; + } #endif #endif return a; |