/* Adds the input number of elements to the windows's content. If no
content has been allocated yet, alloc_content() is called to do
this. The index of the first element added is returned, unless
there is a memory allocation error, in which case, (-1) is
returned. */
int
tui_add_content_elements (struct tui_gen_win_info *win_info,
int num_elements)
{
struct tui_win_element *element_ptr;
int i, index_start;
if (win_info->content == NULL)
{
win_info->content = tui_alloc_content (num_elements, win_info->type);
index_start = 0;
}
else
index_start = win_info->content_size;
if (win_info->content != NULL)
{
for (i = index_start; (i < num_elements + index_start); i++)
{
element_ptr = XNEW (struct tui_win_element);
if (element_ptr != NULL)
{
win_info->content[i] = element_ptr;
init_content_element (element_ptr, win_info->type);
win_info->content_size++;
}
else /* Things must be really hosed now! We ran out of
memory!? */
return (-1);
}
}
return index_start;
}
/* Allocates the content and elements in a block. */
tui_win_content
tui_alloc_content (int num_elements, enum tui_win_type type)
{
tui_win_content content;
struct tui_win_element *element_block_ptr;
int i;
content = XNEWVEC (struct tui_win_element *, num_elements);
/*
* All windows, except the data window, can allocate the
* elements in a chunk. The data window cannot because items
* can be added/removed from the data display by the user at any
* time.
*/
if (type != DATA_WIN)
{
element_block_ptr = XNEWVEC (struct tui_win_element, num_elements);
for (i = 0; i < num_elements; i++)
{
content[i] = element_block_ptr;
init_content_element (content[i], type);
element_block_ptr++;
}
}
/* Allocates the content and elements in a block. */
tui_win_content
tui_alloc_content (int num_elements, enum tui_win_type type)
{
tui_win_content content;
char *element_block_ptr;
int i;
content = XNEWVEC (struct tui_win_element *, num_elements);
if (content != NULL)
{
/*
* All windows, except the data window, can allocate the
* elements in a chunk. The data window cannot because items
* can be added/removed from the data display by the user at any
* time.
*/
if (type != DATA_WIN)
{
element_block_ptr =
xmalloc (sizeof (struct tui_win_element) * num_elements);
if (element_block_ptr != NULL)
{
for (i = 0; i < num_elements; i++)
{
content[i] = (struct tui_win_element *) element_block_ptr;
init_content_element (content[i], type);
element_block_ptr += sizeof (struct tui_win_element);
}
}
else
{
xfree (content);
content = (tui_win_content) NULL;
}
}
}
return content;
}
