/* $Id: map.c,v 1.12 2002/11/06 15:08:06 ukai Exp $ */ /* * client-side image maps */ #include "fm.h" #include #ifdef MENU_MAP #ifdef USE_IMAGE static int inMapArea(MapArea * a, int x, int y) { int i; double r1, r2, s, c, t; if (!a) return FALSE; switch (a->shape) { case SHAPE_RECT: if (x >= a->coords[0] && y >= a->coords[1] && x <= a->coords[2] && y <= a->coords[3]) return TRUE; break; case SHAPE_CIRCLE: if ((x - a->coords[0]) * (x - a->coords[0]) + (y - a->coords[1]) * (y - a->coords[1]) <= a->coords[2] * a->coords[2]) return TRUE; break; case SHAPE_POLY: for (t = 0, i = 0; i < a->ncoords; i += 2) { r1 = sqrt((double)(x - a->coords[i]) * (x - a->coords[i]) + (double)(y - a->coords[i + 1]) * (y - a->coords[i + 1])); r2 = sqrt((double)(x - a->coords[i + 2]) * (x - a->coords[i + 2]) + (double)(y - a->coords[i + 3]) * (y - a->coords[i + 3])); if (r1 == 0 || r2 == 0) return TRUE; s = ((double)(x - a->coords[i]) * (y - a->coords[i + 3]) - (double)(x - a->coords[i + 2]) * (y - a->coords[i + 1])) / r1 / r2; c = ((double)(x - a->coords[i]) * (x - a->coords[i + 2]) + (double)(y - a->coords[i + 1]) * (y - a->coords[i + 3])) / r1 / r2; t += atan2(s, c); } if (fabs(t) > 2 * 3.14) return TRUE; break; case SHAPE_DEFAULT: return TRUE; default: break; } 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 * follow_map_menu(Buffer *buf, struct parsed_tagarg * arg, Anchor *a_img, int x, int y) { MapList *ml; ListItem *al; MapArea *a; char *name; int i, n, selected = -1, initial; char **label; #ifdef USE_IMAGE int px, py, map = 0; #endif name = tag_get_value(arg, "link"); if (name == NULL) return NULL; for (ml = buf->maplist; ml != NULL; ml = ml->next) { if (!Strcmp_charp(ml->name, name)) break; } if (ml == NULL || ml->area == NULL) return NULL; n = ml->area->nitem; if (n == 0) return NULL; label = New_N(char *, n + 1); #ifdef USE_IMAGE if (getMapXY(buf, a_img, &px, &py)) map = 1; #endif initial = -n; for (i = 0, al = ml->area->first; al != NULL; i++, al = al->next) { a = (MapArea *) al->ptr; if (a) { label[i] = *a->alt ? a->alt : a->url; #ifdef USE_IMAGE if (initial < 0 && map && inMapArea(a, px, py)) { if (a->shape == SHAPE_DEFAULT) { if (initial == -n) initial = -i; } else initial = i; } #endif } else label[i] = ""; } 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; optionMenu(x, y, label, &selected, initial, NULL); if (selected >= 0) { for (i = 0, al = ml->area->first; al != NULL; i++, al = al->next) { if (al->ptr && i == selected) return (MapArea *) al->ptr; } } return NULL; } #else char *map1 = "Image map links\

Image map links

"; Buffer * follow_map_panel(Buffer *buf, struct parsed_tagarg *arg) { Str mappage; MapList *ml; ListItem *al; MapArea *a; char *name; ParsedURL pu; name = tag_get_value(arg, "link"); if (name == NULL) return NULL; for (ml = buf->maplist; ml != NULL; ml = ml->next) { if (!Strcmp_charp(ml->name, name)) break; } if (ml == NULL) return NULL; mappage = Strnew_charp(map1); for (al = ml->area->first; al != NULL; al = al->next) { a = (MapArea *) al->ptr; if (!a) continue; parseURL2(a->url, &pu, baseURL(buf)); Strcat_charp(mappage, "ptr)); Strcat_charp(mappage, "\">"); Strcat_charp(mappage, html_quote(a->alt)); Strcat_charp(mappage, " "); Strcat_charp(mappage, html_quote(a->url)); Strcat_charp(mappage, "
\n"); } Strcat_charp(mappage, ""); return loadHTMLString(mappage); } #endif #ifdef USE_IMAGE int getMapXY(Buffer *buf, Anchor *a, int *x, int *y) { if (!buf || !a || !a->image || !x || !y) return 0; *x = (int)((buf->currentColumn + buf->cursorX - COLPOS(buf->currentLine, a->start.pos) + 0.5) * pixel_per_char) - a->image->xoffset; *y = (int)((buf->currentLine->linenumber - a->image->y + 0.5) * pixel_per_line) - a->image->yoffset; if (*x <= 0) *x = 1; if (*y <= 0) *y = 1; return 1; } #endif MapArea * newMapArea(char *url, char *target, char *alt, char *shape, char *coords) { MapArea *a = New(MapArea); #ifdef MENU_MAP #ifdef USE_IMAGE char *p; int i, max; #endif #endif a->url = url; a->target = target; a->alt = alt ? alt : ""; #ifdef MENU_MAP #ifdef USE_IMAGE a->shape = SHAPE_RECT; if (shape) { if (!strcasecmp(shape, "default")) a->shape = SHAPE_DEFAULT; else if (!strncasecmp(shape, "rect", 4)) a->shape = SHAPE_RECT; else if (!strncasecmp(shape, "circ", 4)) a->shape = SHAPE_CIRCLE; else if (!strncasecmp(shape, "poly", 4)) a->shape = SHAPE_POLY; else a->shape = SHAPE_UNKNOWN; } 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) { a->shape = SHAPE_UNKNOWN; return a; } if (a->shape == SHAPE_RECT) { a->coords = New_N(short, 4); a->ncoords = 4; } else if (a->shape == SHAPE_CIRCLE) { a->coords = New_N(short, 3); a->ncoords = 3; } max = a->ncoords; for (i = 0, p = coords; (a->shape == SHAPE_POLY || i < a->ncoords) && *p;) { while (IS_SPACE(*p)) p++; if (!IS_DIGIT(*p)) break; if (a->shape == SHAPE_POLY) { if (max <= i) { max = i ? i * 2 : 6; a->coords = New_Reuse(short, a->coords, max + 2); } a->ncoords++; } a->coords[i] = (short)atoi(p); i++; while (IS_DIGIT(*p)) p++; if (*p != ',' && !IS_SPACE(*p)) break; while (IS_SPACE(*p)) p++; if (*p == ',') p++; } if (i != a->ncoords || (a->shape == SHAPE_POLY && a->ncoords < 6)) { a->shape = SHAPE_UNKNOWN; a->coords = NULL; a->ncoords = 0; } if (a->shape == SHAPE_POLY) { a->ncoords = a->ncoords / 2 * 2; 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; } /* append frame URL */ static void append_frame_info(Buffer *buf, Str html, struct frameset *set, int level) { char *p, *q; int i, j; if (!set) return; for (i = 0; i < set->col * set->row; i++) { union frameset_element frame = set->frame[i]; if (frame.element != NULL) { switch (frame.element->attr) { case F_UNLOADED: case F_BODY: if (frame.body->url == NULL) break; for (j = 0; j < level; j++) Strcat_charp(html, " "); q = html_quote(frame.body->url); Strcat_charp(html, ""); if (frame.body->name) { p = file_unquote(frame.body->name); #ifdef JP_CHARSET p = conv(p, buf->document_code, InnerCode)->ptr; #endif p = html_quote(p); Strcat_charp(html, p); } Strcat_charp(html, " "); Strcat_charp(html, q); Strcat_charp(html, "\n"); #ifdef USE_SSL if (frame.body->ssl_certificate) Strcat_m_charp(html, "
\n",
				   frame.body->ssl_certificate,
				   "
\n", NULL); #endif break; case F_FRAMESET: append_frame_info(buf, html, frame.set, level + 1); break; } } } } /* * information of current page and link */ Buffer * page_info_panel(Buffer *buf) { Str tmp = Strnew_size(1024); Anchor *a; Str s; ParsedURL pu; TextListItem *ti; struct frameset *f_set = NULL; int all; Strcat_charp(tmp, "Information about current page"); Strcat_charp(tmp, "

Information about current page

"); if (buf == NULL) goto end; Strcat_charp(tmp, "
Title"); Strcat_charp(tmp, html_quote(buf->buffername)); Strcat_charp(tmp, "
Current URL"); Strcat_charp(tmp, html_quote(parsedURL2Str(&buf->currentURL)->ptr)); Strcat_charp(tmp, "
Document Type"); if (buf->real_type) Strcat_charp(tmp, buf->real_type); else Strcat_charp(tmp, "unknown"); Strcat_charp(tmp, "
Last Modified"); Strcat_charp(tmp, html_quote(last_modified(buf))); #ifdef JP_CHARSET Strcat_charp(tmp, "
Document Code"); Strcat_charp(tmp, code_to_str(buf->document_code)); #endif /* JP_CHARSET */ Strcat_charp(tmp, "
Number of lines"); all = buf->allLine; if (all == 0 && buf->lastLine) all = buf->lastLine->linenumber; Strcat(tmp, Sprintf("%d", all)); Strcat_charp(tmp, "
Transferred bytes"); Strcat(tmp, Sprintf("%d", buf->trbyte)); a = retrieveCurrentAnchor(buf); if (a != NULL) { char *aurl; parseURL2(a->url, &pu, baseURL(buf)); s = parsedURL2Str(&pu); aurl = html_quote(s->ptr); Strcat_charp(tmp, "
URL of current anchor"); Strcat_m_charp(tmp, "", aurl, "", NULL); } a = retrieveCurrentImg(buf); if (a != NULL) { parseURL2(a->url, &pu, baseURL(buf)); s = parsedURL2Str(&pu); Strcat_charp(tmp, "
URL of current image"); Strcat_charp(tmp, "ptr)); Strcat_charp(tmp, "\">"); Strcat_charp(tmp, html_quote(s->ptr)); Strcat_charp(tmp, ""); } a = retrieveCurrentForm(buf); if (a != NULL) { s = Strnew_charp(form2str((FormItemList *)a->url)); Strcat_charp(tmp, "
Method/type of current form"); Strcat_charp(tmp, html_quote(s->ptr)); } Strcat_charp(tmp, "
\n"); if (buf->document_header != NULL) { Strcat_charp(tmp, "
\n"); Strcat_charp(tmp, "

Header information

\n"); for (ti = buf->document_header->first; ti != NULL; ti = ti->next) { Strcat_charp(tmp, html_quote(ti->ptr)); Strcat_charp(tmp, "
"); } } if (buf->frameset != NULL) f_set = buf->frameset; else if (buf->bufferprop & BP_FRAME && buf->nextBuffer != NULL && buf->nextBuffer->frameset != NULL) f_set = buf->nextBuffer->frameset; if (f_set) { Strcat_charp(tmp, "

Frame information

");
	append_frame_info(buf, tmp, f_set, 0);
	Strcat_charp(tmp, "
"); } #ifdef USE_SSL if (buf->ssl_certificate == NULL) goto end; Strcat_charp(tmp, "

SSL certificate

\n"); Strcat_charp(tmp, "
\n");
    Strcat_charp(tmp, buf->ssl_certificate);
    Strcat_charp(tmp, "
\n"); #endif end: Strcat_charp(tmp, ""); return loadHTMLString(tmp); }