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Add support for saved trees.

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Submitted by:	"Anatoly A. Orehovsky" <tolik@mpeks.tomsk.su>
This commit is contained in:
jkh 1998-09-29 12:22:36 +00:00
parent d0e92ecb14
commit 81bba8eebb
2 changed files with 111 additions and 4 deletions
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2
gnu/lib/libdialog/dialog.h
View File

@ -195,7 +195,7 @@ int dialog_ftree(unsigned char *filename, unsigned char FS,
*
* return values:
* -1 - ESC pressed
* 0 - Ok, result set (must be freed later)
* 0 - Ok, result set
* 1 - Cancel
*/

113
gnu/lib/libdialog/tree.c
View File

@ -117,6 +117,32 @@ static unsigned char *smart_tree(struct queue *queue, unsigned char FS,
/* end of static utils for ftree */
/* static utils for saved_tree */
/* saved values for unique tree */
struct saved_tree {
unsigned char **names; /* names + */
int size; /* size + */
unsigned char FS; /* FS + */
int height; /* height + */
int width; /* width + */
int menu_height; /* menu_height - unique for treebox ? */
int ch; /* saved ch - choice */
int sc; /* saved sc - scroll */
};
/* search saved tree within queue */
/* return - struct saved_tree * or NULL if not found */
static struct saved_tree *search_saved_tree(struct queue *queue,
unsigned char **names,
int size,
unsigned char FS,
int height,
int width,
int menu_height);
/* end of static utils for saved_tree */
static void print_item(WINDOW *win, struct leaf item, int choice, int selected);
static void print_position(WINDOW *win, int x, int y,
@ -581,7 +607,7 @@ int dialog_ftree(unsigned char *filename, unsigned char FS,
*
* return values:
* -1 - ESC pressed
* 0 - Ok, result set (must be freed later)
* 0 - Ok, result set
* 1 - Cancel
*/
@ -592,6 +618,8 @@ int dialog_tree(unsigned char **names, int size, unsigned char FS,
{
int retcode, choice;
struct leaf *items;
struct saved_tree *st;
static struct queue *q_saved_tree = NULL;
if (!size)
{
@ -606,9 +634,43 @@ int dialog_tree(unsigned char **names, int size, unsigned char FS,
end_dialog();
exit(-1);
}
/* is tree saved ? */
if (!(st = search_saved_tree(q_saved_tree, names,
size, FS,
height, width, menu_height))) {
if (!q_saved_tree) {
if (!(q_saved_tree =
calloc(sizeof (struct queue), 1))) {
perror("dialog_tree");
end_dialog();
exit(-1);
}
}
if (!(st = calloc(sizeof (struct saved_tree), 1))) {
perror("dialog_tree");
end_dialog();
exit(-1);
}
st->names = names;
st->size = size;
st->FS = FS;
st->height = height;
st->width = width;
st->menu_height = menu_height;
if (!p2_queue(q_saved_tree, st)) {
perror("dialog_tree");
end_dialog();
exit(-1);
}
}
retcode = dialog_treemenu(title, prompt, height, width, menu_height,
size, items, &choice, NULL, NULL);
size, items, &choice,
&(st->ch), &(st->sc));
free_leafs(items, size);
@ -739,7 +801,7 @@ smart_tree(struct queue *queue,
if (*pcurrent == FS) {
pcurrent++;
if ((pprev == prev) && (*pcurrent)) {
if ((!*prev) && (*pcurrent)) {
unsigned char tchar = *pcurrent;
*pcurrent = '\0';
@ -1015,3 +1077,48 @@ free_names(unsigned char **names, int size, int choice)
} /* free_names() */
/* end of utils for make tree */
/* static utils for saved_tree */
/* search saved tree within queue */
/* return - struct *saved_tree or NULL if not found */
static
struct saved_tree *
search_saved_tree(struct queue *queue, unsigned char **names, int size,
unsigned char FS,
int height, int width,
int menu_height)
{
struct m_queue *member;
struct saved_tree *retval;
if (!queue || !names || !FS ||
!height || !width || !menu_height)
return NULL;
if (!(member = queue->first))
return NULL;
while (member->next) {
retval = member->pointer;
if ((names == retval->names) &&
(size == retval->size) &&
(FS == retval->FS) &&
(height == retval->height) &&
(width == retval->width) &&
(menu_height == retval->menu_height))
return retval;
member = member->next;
}
retval = member->pointer;
if ((names == retval->names) &&
(size == retval->size) &&
(FS == retval->FS) &&
(height == retval->height) &&
(width == retval->width) &&
(menu_height == retval->menu_height))
return retval;
return NULL;
}
/* end of static utils for saved_tree */