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undo: make picture (media) deletion undoable

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The code is rather complex. Firstly, we have different representations
of pictures throughout the code. Secondly, this tries to do add the
pictures in batches to the divepicture model and that is always rather
tricky.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2020-04-17 23:18:58 +02:00 • committed by Dirk Hohndel
parent 9962d47b56
commit 434644b381
13 changed files with 286 additions and 54 deletions
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2
core/picture.h
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@ -33,7 +33,7 @@ extern void clear_picture_table(struct picture_table *);
extern void add_to_picture_table(struct picture_table *, int idx, struct picture pic);
extern void copy_pictures(const struct picture_table *s, struct picture_table *d);
extern void add_picture(struct picture_table *, struct picture newpic);
extern bool remove_picture(struct picture_table *, const char *filename);
extern void remove_from_picture_table(struct picture_table *, int idx);
extern int get_picture_idx(const struct picture_table *, const char *filename); /* Return -1 if not found */
extern void sort_picture_table(struct picture_table *);