static gint
luaH_page_search(lua_State *L)
{
page_info_t *p = lua_touserdata(L, lua_upvalueindex(1));
const gchar *text = luaL_checkstring(L, 2);
p->search_matches = poppler_page_find_text(p->page, text);
return 0;
}
static find_result_t find_next( find_context_t* fc ) {
switch ( fc->state ) {
case FIND_STATE_INIT :
fc->page = document_get_page( fc->doc, fc->page_index );
{
int size = strlen( fc->text ) + 32;
char* key = ( char* )malloc( size );
gpointer match;
if ( key == NULL ) {
return FIND_NONE;
}
snprintf( key, size, "%p%s", fc->page->page, fc->text );
if ( ( match = g_hash_table_lookup( fc->doc->match_table, key ) ) == fc->doc->match_table ) {
fc->match_list = NULL;
free( key );
} else if ( match == NULL ) {
poppler_lock();
fc->match_list = poppler_page_find_text( fc->page->page, fc->text );
poppler_unlock();
if ( fc->match_list != NULL ) {
g_hash_table_insert( fc->doc->match_table, key, fc->match_list );
} else {
g_hash_table_insert( fc->doc->match_table, key, fc->doc->match_table );
}
} else {
fc->match_list = ( GList* )match;
free( key );
}
}
if ( fc->match_list != NULL ) {
if ( fc->direction == FIND_FORWARD ) {
fc->match = fc->match_list;
} else {
fc->match = g_list_last( fc->match_list );
}
fc->state = FIND_STATE_MATCH;
if ( fc->wrapped ) {
fc->wrapped = FALSE;
return FIND_OK_WRAPPED;
}
return FIND_OK;
}
if ( ++fc->no_match_since == document_get_page_count( fc->doc ) ) {
fc->state = FIND_STATE_NONE;
return FIND_NONE;
}
fc->match = NULL;
fc->state = FIND_STATE_SEARCH;
return find_next( fc );
case FIND_STATE_MATCH :
fc->no_match_since = 0;
fc->state = FIND_STATE_SEARCH;
return find_next( fc );
case FIND_STATE_SEARCH :
if ( fc->match != NULL ) {
if ( fc->direction == FIND_FORWARD ) {
fc->match = fc->match->next;
} else {
fc->match = fc->match->prev;
}
if ( fc->match != NULL) {
fc->wrapped = FALSE;
fc->state = FIND_STATE_MATCH;
return FIND_OK;
}
}
if ( fc->direction == FIND_FORWARD ) {
if ( ++fc->page_index == document_get_page_count( fc->doc ) ) {
fc->page_index = 0;
fc->wrapped = TRUE;
}
} else {
if ( --fc->page_index == -1 ) {
fc->page_index = document_get_page_count( fc->doc ) - 1;
fc->wrapped = TRUE;
}
}
fc->state = FIND_STATE_INIT;
return find_next( fc );
case FIND_STATE_NONE :
return FIND_NONE;
}
/* for compiler satisfaction */
return FIND_NONE;
}
static VALUE
rg_find_text(VALUE self, VALUE text)
{
return GLIST2ARY2F(poppler_page_find_text(SELF(self), RVAL2CSTR(text)),
POPPLER_TYPE_RECTANGLE);
}