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Picture handling: keep picture list sorted

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And simplify the list handling algorithm.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Dirk Hohndel 2014-06-08 12:34:18 -07:00
parent f037f03268
commit a55411c558
2 changed files with 8 additions and 10 deletions
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16
dive.c
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@ -2294,16 +2294,14 @@ void dive_create_picture(struct dive *d, char *filename, int shift_time)
dive_set_geodata_from_picture(d, p);
}
void dive_add_picture(struct dive *d, struct picture *picture)
void dive_add_picture(struct dive *d, struct picture *newpic)
{
if (d->picture_list == NULL) {
d->picture_list = picture;
return;
}
struct picture *last = d->picture_list;
while( last->next )
last = last->next;
last->next = picture;
struct picture **pic_ptr = &d->picture_list;
/* let's keep the list sorted by time */
while( *pic_ptr && (*pic_ptr)->timestamp < newpic->timestamp )
pic_ptr = &(*pic_ptr)->next;
newpic->next = *pic_ptr;
*pic_ptr = newpic;
return;
}

2
dive.h
View file

@ -302,7 +302,7 @@ struct picture {
extern struct picture *alloc_picture();
extern void dive_create_picture(struct dive *d, char *filename, int shift_time);
extern void dive_add_picture(struct dive *d, struct picture *pic);
extern void dive_add_picture(struct dive *d, struct picture *newpic);
extern void dive_remove_picture(struct dive *d, struct picture *pic);
extern unsigned int dive_get_picture_count(struct dive *d);
extern void picture_load_exif_data(struct picture *p);