666 lines
16 KiB
C
666 lines
16 KiB
C
/* $Id: map.c,v 1.30 2003/09/24 18:49:00 ukai Exp $ */
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/*
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* client-side image maps
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*/
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#include "fm.h"
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#include <math.h>
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MapList *
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searchMapList(Buffer *buf, char *name)
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{
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MapList *ml;
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if (name == NULL)
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return NULL;
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for (ml = buf->maplist; ml != NULL; ml = ml->next) {
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if (!Strcmp_charp(ml->name, name))
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break;
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}
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return ml;
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}
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#ifdef USE_IMAGE
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static int
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inMapArea(MapArea * a, int x, int y)
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{
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int i;
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double r1, r2, s, c, t;
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if (!a)
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return FALSE;
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switch (a->shape) {
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case SHAPE_RECT:
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if (x >= a->coords[0] && y >= a->coords[1] &&
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x <= a->coords[2] && y <= a->coords[3])
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return TRUE;
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break;
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case SHAPE_CIRCLE:
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if ((x - a->coords[0]) * (x - a->coords[0])
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+ (y - a->coords[1]) * (y - a->coords[1])
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<= a->coords[2] * a->coords[2])
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return TRUE;
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break;
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case SHAPE_POLY:
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for (t = 0, i = 0; i < a->ncoords; i += 2) {
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r1 = sqrt((double)(x - a->coords[i]) * (x - a->coords[i])
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+ (double)(y - a->coords[i + 1]) * (y -
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a->coords[i + 1]));
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r2 = sqrt((double)(x - a->coords[i + 2]) * (x - a->coords[i + 2])
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+ (double)(y - a->coords[i + 3]) * (y -
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a->coords[i + 3]));
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if (r1 == 0 || r2 == 0)
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return TRUE;
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s = ((double)(x - a->coords[i]) * (y - a->coords[i + 3])
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- (double)(x - a->coords[i + 2]) * (y -
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a->coords[i +
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1])) / r1 / r2;
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c = ((double)(x - a->coords[i]) * (x - a->coords[i + 2])
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+ (double)(y - a->coords[i + 1]) * (y -
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a->coords[i +
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3])) / r1 / r2;
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t += atan2(s, c);
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}
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if (fabs(t) > 2 * 3.14)
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return TRUE;
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break;
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case SHAPE_DEFAULT:
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return TRUE;
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default:
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break;
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}
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return FALSE;
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}
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static int
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nearestMapArea(MapList *ml, int x, int y)
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{
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ListItem *al;
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MapArea *a;
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int i, l, n = -1, min = -1, limit = pixel_per_char * pixel_per_char
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+ pixel_per_line * pixel_per_line;
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if (!ml || !ml->area)
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return n;
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for (i = 0, al = ml->area->first; al != NULL; i++, al = al->next) {
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a = (MapArea *) al->ptr;
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if (a) {
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l = (a->center_x - x) * (a->center_x - x)
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+ (a->center_y - y) * (a->center_y - y);
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if ((min < 0 || l < min) && l < limit) {
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n = i;
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min = l;
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}
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}
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}
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return n;
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}
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static int
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searchMapArea(Buffer *buf, MapList *ml, Anchor *a_img)
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{
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ListItem *al;
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MapArea *a;
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int i, n;
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int px, py;
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if (!(ml && ml->area && ml->area->nitem))
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return -1;
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if (!getMapXY(buf, a_img, &px, &py))
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return -1;
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n = -ml->area->nitem;
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for (i = 0, al = ml->area->first; al != NULL; i++, al = al->next) {
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a = (MapArea *) al->ptr;
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if (!a)
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continue;
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if (n < 0 && inMapArea(a, px, py)) {
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if (a->shape == SHAPE_DEFAULT) {
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if (n == -ml->area->nitem)
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n = -i;
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}
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else
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n = i;
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}
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}
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if (n == -ml->area->nitem)
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return nearestMapArea(ml, px, py);
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else if (n < 0)
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return -n;
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return n;
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}
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MapArea *
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retrieveCurrentMapArea(Buffer *buf)
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{
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Anchor *a_img, *a_form;
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FormItemList *fi;
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MapList *ml;
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ListItem *al;
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MapArea *a;
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int i, n;
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a_img = retrieveCurrentImg(buf);
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if (!(a_img && a_img->image && a_img->image->map))
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return NULL;
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a_form = retrieveCurrentForm(buf);
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if (!(a_form && a_form->url))
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return NULL;
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fi = (FormItemList *)a_form->url;
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if (!(fi && fi->parent && fi->parent->item))
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return NULL;
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fi = fi->parent->item;
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ml = searchMapList(buf, fi->value ? fi->value->ptr : NULL);
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if (!ml)
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return NULL;
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n = searchMapArea(buf, ml, a_img);
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if (n < 0)
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return NULL;
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for (i = 0, al = ml->area->first; al != NULL; i++, al = al->next) {
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a = (MapArea *) al->ptr;
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if (a && i == n)
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return a;
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}
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return NULL;
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}
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int
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getMapXY(Buffer *buf, Anchor *a, int *x, int *y)
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{
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if (!buf || !a || !a->image || !x || !y)
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return 0;
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*x = (int)((buf->currentColumn + buf->cursorX
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- COLPOS(buf->currentLine, a->start.pos) + 0.5)
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* pixel_per_char) - a->image->xoffset;
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*y = (int)((buf->currentLine->linenumber - a->image->y + 0.5)
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* pixel_per_line) - a->image->yoffset;
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if (*x <= 0)
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*x = 1;
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if (*y <= 0)
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*y = 1;
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return 1;
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}
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#endif
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Anchor *
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retrieveCurrentMap(Buffer *buf)
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{
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Anchor *a;
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FormItemList *fi;
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a = retrieveCurrentForm(buf);
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if (!a || !a->url)
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return NULL;
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fi = (FormItemList *)a->url;
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if (fi->parent->method == FORM_METHOD_INTERNAL &&
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!Strcmp_charp(fi->parent->action, "map"))
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return a;
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return NULL;
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}
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#if defined(USE_IMAGE) || defined(MENU_MAP)
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MapArea *
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follow_map_menu(Buffer *buf, char *name, Anchor *a_img, int x, int y)
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{
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MapList *ml;
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ListItem *al;
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int i, selected = -1;
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int initial = 0;
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#ifdef MENU_MAP
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MapArea *a;
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char **label;
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#endif
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ml = searchMapList(buf, name);
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if (ml == NULL || ml->area == NULL || ml->area->nitem == 0)
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return NULL;
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#ifdef USE_IMAGE
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initial = searchMapArea(buf, ml, a_img);
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if (initial < 0)
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initial = 0;
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else if (!image_map_list) {
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selected = initial;
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goto map_end;
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}
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#endif
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#ifdef MENU_MAP
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label = New_N(char *, ml->area->nitem + 1);
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for (i = 0, al = ml->area->first; al != NULL; i++, al = al->next) {
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a = (MapArea *) al->ptr;
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if (a)
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label[i] = *a->alt ? a->alt : a->url;
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else
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label[i] = "";
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}
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label[ml->area->nitem] = NULL;
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optionMenu(x, y, label, &selected, initial, NULL);
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#endif
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#ifdef USE_IMAGE
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map_end:
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#endif
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if (selected >= 0) {
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for (i = 0, al = ml->area->first; al != NULL; i++, al = al->next) {
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if (al->ptr && i == selected)
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return (MapArea *) al->ptr;
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}
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}
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return NULL;
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}
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#endif
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#ifndef MENU_MAP
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char *map1 = "<HTML><HEAD><TITLE>Image map links</TITLE></HEAD>\
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<BODY><H1>Image map links</H1>\
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<table>";
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Buffer *
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follow_map_panel(Buffer *buf, char *name)
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{
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Str mappage;
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MapList *ml;
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ListItem *al;
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MapArea *a;
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ParsedURL pu;
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char *p, *q;
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Buffer *newbuf;
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ml = searchMapList(buf, name);
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if (ml == NULL)
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return NULL;
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mappage = Strnew_charp(map1);
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for (al = ml->area->first; al != NULL; al = al->next) {
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a = (MapArea *) al->ptr;
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if (!a)
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continue;
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parseURL2(a->url, &pu, baseURL(buf));
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p = parsedURL2Str(&pu)->ptr;
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q = html_quote(p);
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if (DecodeURL)
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p = html_quote(url_unquote_conv(p, buf->document_charset));
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else
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p = q;
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Strcat_m_charp(mappage, "<tr valign=top><td><a href=\"", q, "\">",
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html_quote(*a->alt ? a->alt : mybasename(a->url)),
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"</a><td>", p, NULL);
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}
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Strcat_charp(mappage, "</table></body></html>");
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newbuf = loadHTMLString(mappage);
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#ifdef USE_M17N
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if (newbuf)
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newbuf->document_charset = buf->document_charset;
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#endif
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return newbuf;
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}
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#endif
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MapArea *
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newMapArea(char *url, char *target, char *alt, char *shape, char *coords)
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{
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MapArea *a = New(MapArea);
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#ifdef USE_IMAGE
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char *p;
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int i, max;
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#endif
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a->url = url;
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a->target = target;
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a->alt = alt ? alt : "";
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#ifdef USE_IMAGE
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a->shape = SHAPE_RECT;
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if (shape) {
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if (!strcasecmp(shape, "default"))
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a->shape = SHAPE_DEFAULT;
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else if (!strncasecmp(shape, "rect", 4))
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a->shape = SHAPE_RECT;
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else if (!strncasecmp(shape, "circ", 4))
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a->shape = SHAPE_CIRCLE;
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else if (!strncasecmp(shape, "poly", 4))
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a->shape = SHAPE_POLY;
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else
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a->shape = SHAPE_UNKNOWN;
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}
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a->coords = NULL;
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a->ncoords = 0;
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a->center_x = 0;
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a->center_y = 0;
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if (a->shape == SHAPE_UNKNOWN || a->shape == SHAPE_DEFAULT)
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return a;
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if (!coords) {
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a->shape = SHAPE_UNKNOWN;
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return a;
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}
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if (a->shape == SHAPE_RECT) {
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a->coords = New_N(short, 4);
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a->ncoords = 4;
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}
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else if (a->shape == SHAPE_CIRCLE) {
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a->coords = New_N(short, 3);
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a->ncoords = 3;
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}
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max = a->ncoords;
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for (i = 0, p = coords; (a->shape == SHAPE_POLY || i < a->ncoords) && *p;) {
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while (IS_SPACE(*p))
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p++;
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if (!IS_DIGIT(*p) && *p != '-' && *p != '+')
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break;
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if (a->shape == SHAPE_POLY) {
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if (max <= i) {
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max = i ? i * 2 : 6;
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a->coords = New_Reuse(short, a->coords, max + 2);
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}
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a->ncoords++;
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}
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a->coords[i] = (short)atoi(p);
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i++;
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if (*p == '-' || *p == '+')
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p++;
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while (IS_DIGIT(*p))
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p++;
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if (*p != ',' && !IS_SPACE(*p))
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break;
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while (IS_SPACE(*p))
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p++;
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if (*p == ',')
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p++;
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}
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if (i != a->ncoords || (a->shape == SHAPE_POLY && a->ncoords < 6)) {
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a->shape = SHAPE_UNKNOWN;
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a->coords = NULL;
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a->ncoords = 0;
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return a;
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}
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if (a->shape == SHAPE_POLY) {
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a->ncoords = a->ncoords / 2 * 2;
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a->coords[a->ncoords] = a->coords[0];
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a->coords[a->ncoords + 1] = a->coords[1];
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}
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if (a->shape == SHAPE_CIRCLE) {
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a->center_x = a->coords[0];
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a->center_y = a->coords[1];
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}
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else {
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for (i = 0; i < a->ncoords / 2; i++) {
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a->center_x += a->coords[2 * i];
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a->center_y += a->coords[2 * i + 1];
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}
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a->center_x /= a->ncoords / 2;
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a->center_y /= a->ncoords / 2;
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}
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#endif
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return a;
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}
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/* append image map links */
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static void
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append_map_info(Buffer *buf, Str tmp, FormItemList *fi)
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{
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MapList *ml;
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ListItem *al;
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MapArea *a;
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ParsedURL pu;
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char *p, *q;
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ml = searchMapList(buf, fi->value ? fi->value->ptr : NULL);
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if (ml == NULL)
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return;
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Strcat_m_charp(tmp,
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"<tr valign=top><td colspan=2>Links of current image map",
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"<tr valign=top><td colspan=2><table>", NULL);
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for (al = ml->area->first; al != NULL; al = al->next) {
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a = (MapArea *) al->ptr;
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if (!a)
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continue;
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parseURL2(a->url, &pu, baseURL(buf));
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q = html_quote(parsedURL2Str(&pu)->ptr);
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if (DecodeURL)
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p = html_quote(url_unquote_conv(a->url, buf->document_charset));
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else
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p = html_quote(a->url);
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Strcat_m_charp(tmp, "<tr valign=top><td> <td><a href=\"",
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q, "\">",
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html_quote(*a->alt ? a->alt : mybasename(a->url)),
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"</a><td>", p, "\n", NULL);
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}
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Strcat_charp(tmp, "</table>");
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}
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/* append links */
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static void
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append_link_info(Buffer *buf, Str html, LinkList * link)
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{
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LinkList *l;
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ParsedURL pu;
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char *url;
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if (!link)
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return;
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Strcat_charp(html, "<hr width=50%><h1>Link information</h1><table>\n");
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for (l = link; l; l = l->next) {
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if (l->url) {
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parseURL2(l->url, &pu, baseURL(buf));
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url = html_quote(parsedURL2Str(&pu)->ptr);
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}
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else
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url = "(empty)";
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Strcat_m_charp(html, "<tr valign=top><td><a href=\"", url, "\">",
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l->title ? html_quote(l->title) : "(empty)", "</a><td>",
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NULL);
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if (l->type == LINK_TYPE_REL)
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Strcat_charp(html, "[Rel]");
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else if (l->type == LINK_TYPE_REV)
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Strcat_charp(html, "[Rev]");
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if (!l->url)
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url = "(empty)";
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else if (DecodeURL)
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url = html_quote(url_unquote_conv(l->url, buf->document_charset));
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else
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url = html_quote(l->url);
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Strcat_m_charp(html, "<td>", url, NULL);
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if (l->ctype)
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Strcat_m_charp(html, " (", html_quote(l->ctype), ")", NULL);
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Strcat_charp(html, "\n");
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}
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Strcat_charp(html, "</table>\n");
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}
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/* append frame URL */
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static void
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append_frame_info(Buffer *buf, Str html, struct frameset *set, int level)
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{
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char *p, *q;
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int i, j;
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if (!set)
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return;
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for (i = 0; i < set->col * set->row; i++) {
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union frameset_element frame = set->frame[i];
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if (frame.element != NULL) {
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switch (frame.element->attr) {
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case F_UNLOADED:
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case F_BODY:
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if (frame.body->url == NULL)
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break;
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Strcat_charp(html, "<pre_int>");
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for (j = 0; j < level; j++)
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Strcat_charp(html, " ");
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q = html_quote(frame.body->url);
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Strcat_m_charp(html, "<a href=\"", q, "\">", NULL);
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if (frame.body->name) {
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p = html_quote(url_unquote_conv(frame.body->name,
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buf->document_charset));
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Strcat_charp(html, p);
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}
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if (DecodeURL)
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p = html_quote(url_unquote_conv(frame.body->url,
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buf->document_charset));
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else
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p = q;
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Strcat_m_charp(html, " ", p, "</a></pre_int><br>\n", NULL);
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#ifdef USE_SSL
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if (frame.body->ssl_certificate)
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Strcat_m_charp(html,
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"<blockquote><h2>SSL certificate</h2><pre>\n",
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html_quote(frame.body->ssl_certificate),
|
|
"</pre></blockquote>\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;
|
|
ParsedURL pu;
|
|
TextListItem *ti;
|
|
struct frameset *f_set = NULL;
|
|
int all;
|
|
char *p, *q;
|
|
#ifdef USE_M17N
|
|
wc_ces_list *list;
|
|
char charset[16];
|
|
#endif
|
|
Buffer *newbuf;
|
|
|
|
Strcat_charp(tmp, "<html><head>\
|
|
<title>Information about current page</title>\
|
|
</head><body>\
|
|
<h1>Information about current page</h1>\n");
|
|
if (buf == NULL)
|
|
goto end;
|
|
all = buf->allLine;
|
|
if (all == 0 && buf->lastLine)
|
|
all = buf->lastLine->linenumber;
|
|
#ifdef USE_M17N
|
|
Strcat_charp(tmp, "<form method=internal action=charset>");
|
|
#endif
|
|
p = parsedURL2Str(&buf->currentURL)->ptr;
|
|
if (DecodeURL)
|
|
p = url_unquote_conv(p, 0);
|
|
Strcat_m_charp(tmp, "<table cellpadding=0>",
|
|
"<tr valign=top><td nowrap>Title<td>",
|
|
html_quote(buf->buffername),
|
|
"<tr valign=top><td nowrap>Current URL<td>",
|
|
html_quote(p),
|
|
"<tr valign=top><td nowrap>Document Type<td>",
|
|
buf->real_type ? html_quote(buf->real_type) : "unknown",
|
|
"<tr valign=top><td nowrap>Last Modified<td>",
|
|
html_quote(last_modified(buf)), NULL);
|
|
#ifdef USE_M17N
|
|
if (buf->document_charset != InnerCharset) {
|
|
list = wc_get_ces_list();
|
|
Strcat_charp(tmp,
|
|
"<tr><td nowrap>Document Charset<td><select name=charset>");
|
|
for (; list->name != NULL; list++) {
|
|
sprintf(charset, "%d", (unsigned int)list->id);
|
|
Strcat_m_charp(tmp, "<option value=", charset,
|
|
(buf->document_charset == list->id) ? " selected>"
|
|
: ">", list->desc, NULL);
|
|
}
|
|
Strcat_charp(tmp, "</select>");
|
|
Strcat_charp(tmp, "<tr><td><td><input type=submit value=Change>");
|
|
}
|
|
#endif
|
|
Strcat_m_charp(tmp,
|
|
"<tr valign=top><td nowrap>Number of lines<td>",
|
|
Sprintf("%d", all)->ptr,
|
|
"<tr valign=top><td nowrap>Transferred bytes<td>",
|
|
Sprintf("%d", buf->trbyte)->ptr, NULL);
|
|
|
|
a = retrieveCurrentAnchor(buf);
|
|
if (a != NULL) {
|
|
parseURL2(a->url, &pu, baseURL(buf));
|
|
p = parsedURL2Str(&pu)->ptr;
|
|
q = html_quote(p);
|
|
if (DecodeURL)
|
|
p = html_quote(url_unquote_conv(p, buf->document_charset));
|
|
else
|
|
p = q;
|
|
Strcat_m_charp(tmp,
|
|
"<tr valign=top><td nowrap>URL of current anchor<td><a href=\"",
|
|
q, "\">", p, "</a>", NULL);
|
|
}
|
|
a = retrieveCurrentImg(buf);
|
|
if (a != NULL) {
|
|
parseURL2(a->url, &pu, baseURL(buf));
|
|
p = parsedURL2Str(&pu)->ptr;
|
|
q = html_quote(p);
|
|
if (DecodeURL)
|
|
p = html_quote(url_unquote_conv(p, buf->document_charset));
|
|
else
|
|
p = q;
|
|
Strcat_m_charp(tmp,
|
|
"<tr valign=top><td nowrap>URL of current image<td><a href=\"",
|
|
q, "\">", p, "</a>", NULL);
|
|
}
|
|
a = retrieveCurrentForm(buf);
|
|
if (a != NULL) {
|
|
FormItemList *fi = (FormItemList *)a->url;
|
|
p = form2str(fi);
|
|
if (DecodeURL)
|
|
p = html_quote(url_unquote_conv(p, buf->document_charset));
|
|
else
|
|
p = html_quote(p);
|
|
Strcat_m_charp(tmp,
|
|
"<tr valign=top><td nowrap>Method/type of current form <td>",
|
|
p, NULL);
|
|
if (fi->parent->method == FORM_METHOD_INTERNAL
|
|
&& !Strcmp_charp(fi->parent->action, "map"))
|
|
append_map_info(buf, tmp, fi->parent->item);
|
|
}
|
|
Strcat_charp(tmp, "</table>\n");
|
|
#ifdef USE_M17N
|
|
Strcat_charp(tmp, "</form>");
|
|
#endif
|
|
|
|
append_link_info(buf, tmp, buf->linklist);
|
|
|
|
if (buf->document_header != NULL) {
|
|
Strcat_charp(tmp, "<hr width=50%><h1>Header information</h1><pre>\n");
|
|
for (ti = buf->document_header->first; ti != NULL; ti = ti->next)
|
|
Strcat_m_charp(tmp, "<pre_int>", html_quote(ti->ptr),
|
|
"</pre_int>\n", NULL);
|
|
Strcat_charp(tmp, "</pre>\n");
|
|
}
|
|
|
|
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, "<hr width=50%><h1>Frame information</h1>\n");
|
|
append_frame_info(buf, tmp, f_set, 0);
|
|
}
|
|
#ifdef USE_SSL
|
|
if (buf->ssl_certificate)
|
|
Strcat_m_charp(tmp, "<h1>SSL certificate</h1><pre>\n",
|
|
html_quote(buf->ssl_certificate), "</pre>\n", NULL);
|
|
#endif
|
|
end:
|
|
Strcat_charp(tmp, "</body></html>");
|
|
newbuf = loadHTMLString(tmp);
|
|
#ifdef USE_M17N
|
|
if (newbuf)
|
|
newbuf->document_charset = buf->document_charset;
|
|
#endif
|
|
return newbuf;
|
|
}
|