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/* Copyright 2007, 2008 Peter Klausler. See COPYING for license. */
#include "all.h"
static struct bookmark {
unsigned id;
struct view *view;
locus_t locus[2];
struct bookmark *next;
} *bookmarks;
void bookmark_set(unsigned id, struct view *view,
position_t cursor, position_t mark)
{
struct bookmark *bm = allocate0(sizeof *bm);
bookmark_unset(id);
bm->id = id;
bm->view = view;
bm->locus[0] = locus_create(view, cursor);
bm->locus[1] = locus_create(view, mark);
bm->next = bookmarks;
bookmarks = bm;
}
Boolean_t bookmark_get(struct view **view, position_t *cursor, position_t *mark,
unsigned id)
{
struct bookmark *bm;
for (bm = bookmarks; bm; bm = bm->next)
if (bm->id == id) {
*view = bm->view;
*cursor = locus_get(bm->view, bm->locus[0]);
if (*cursor == UNSET)
*cursor = 0;
*mark = locus_get(bm->view, bm->locus[1]);
return TRUE;
}
*view = NULL;
*cursor = *mark = 0;
return FALSE;
}
void bookmark_unset(unsigned id)
{
struct bookmark *bm, *prev = NULL;
for (bm = bookmarks; bm; bm = bm->next)
if (bm->id == id) {
locus_destroy(bm->view, bm->locus[0]);
locus_destroy(bm->view, bm->locus[1]);
if (prev)
prev->next = bm->next;
else
bookmarks = bm->next;
return;
}
}
void bookmark_unset_view(struct view *view)
{
struct bookmark *bm, *prev = NULL, *next;
for (bm = bookmarks; bm; bm = next) {
next = bm->next;
if (bm->view != view) {
prev = bm;
continue;
}
locus_destroy(view, bm->locus[0]);
locus_destroy(view, bm->locus[1]);
if (prev)
prev->next = next;
else
bookmarks = next;
}
}
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