/**
* djvu_text_page_selection_process_box:
* @page: #DjvuTextPage instance
* @p: s-expression to append bounding box of
* @delimit: character/word/... delimiter
*
* Appends bounding box of the line containing miniexp_t to page->results
*
* Returns: whether the end was not reached in this s-expression
*/
static gboolean
djvu_text_page_selection_process_box (DjvuTextPage *page,
miniexp_t p,
int delimit)
{
if (page->results || p == page->start) {
EvRectangle box;
const char *text;
box.x1 = miniexp_to_int (miniexp_nth (1, p));
box.y1 = miniexp_to_int (miniexp_nth (2, p));
box.x2 = miniexp_to_int (miniexp_nth (3, p));
box.y2 = miniexp_to_int (miniexp_nth (4, p));
text = miniexp_to_str (miniexp_nth (5, p));
if (text != NULL && text[0] != '\0') {
if (!(delimit & 2) && page->results != NULL) {
EvRectangle *union_box = (EvRectangle *)page->results->data;
/* If still on the same line, add box to union */
djvu_text_page_union (union_box, &box);
} else {
/* A new line, a new box */
page->results = g_list_prepend (page->results, ev_rectangle_copy (&box));
}
}
if (p == page->end)
return FALSE;
}
return TRUE;
}
/**
* djvu_text_page_sexpr_process:
* @page: #DjvuTextPage instance
* @p: s-expression to append
* @start: first s-expression in the selection
* @end: last s-expression in the selection
*
* Appends the rectangle defined by @p to the internal bounding box rectangle.
*
* Returns: whether the end was not reached in this s-expression
*/
static gboolean
djvu_text_page_sexpr_process (DjvuTextPage *page,
miniexp_t p,
miniexp_t start,
miniexp_t end)
{
if (page->bounding_box || p == start) {
EvRectangle *new_rectangle = g_new (EvRectangle, 1);
new_rectangle->x1 = miniexp_to_int (miniexp_nth (1, p));
new_rectangle->y1 = miniexp_to_int (miniexp_nth (2, p));
new_rectangle->x2 = miniexp_to_int (miniexp_nth (3, p));
new_rectangle->y2 = miniexp_to_int (miniexp_nth (4, p));
if (page->bounding_box) {
djvu_text_page_union (page->bounding_box,
new_rectangle);
g_free (new_rectangle);
} else
page->bounding_box = new_rectangle;
if (p == end)
return FALSE;
}
return TRUE;
}
