/**
* validation_new :
* @title : will be copied.
* @msg : will be copied.
* @texpr0 : absorb the reference to the expression (optionally %NULL).
* @texpr1 : absorb the reference to the expression (optionally %NULL).
*
* Does _NOT_ require all necessary information to be set here.
* validation_set_expr can be used to change the expressions after creation,
* and validation_is_ok can be used to ensure that things are properly setup.
*
* Returns a new @GnmValidation object that needs to be unrefed.
**/
GnmValidation *
validation_new (ValidationStyle style,
ValidationType type,
ValidationOp op,
char const *title, char const *msg,
GnmExprTop const *texpr0, GnmExprTop const *texpr1,
gboolean allow_blank, gboolean use_dropdown)
{
GnmValidation *v;
int nops, i;
g_return_val_if_fail (type >= 0, NULL);
g_return_val_if_fail (type < G_N_ELEMENTS (typeinfo), NULL);
g_return_val_if_fail (op >= VALIDATION_OP_NONE, NULL);
g_return_val_if_fail (op < (int)G_N_ELEMENTS (opinfo), NULL);
switch (type) {
case VALIDATION_TYPE_CUSTOM:
case VALIDATION_TYPE_IN_LIST:
nops = 1;
if (op != VALIDATION_OP_NONE) {
/*
* This can happen if an .xls file was saved
* as a .gnumeric.
*/
op = VALIDATION_OP_NONE;
}
break;
case VALIDATION_TYPE_ANY:
nops = 0;
break;
default:
nops = (op == VALIDATION_OP_NONE) ? 0 : opinfo[op].nops;
}
v = g_new0 (GnmValidation, 1);
v->ref_count = 1;
v->title = title && title[0] ? go_string_new (title) : NULL;
v->msg = msg && msg[0] ? go_string_new (msg) : NULL;
v->texpr[0] = texpr0;
v->texpr[1] = texpr1;
v->style = style;
v->type = type;
v->op = op;
v->allow_blank = (allow_blank != FALSE);
v->use_dropdown = (use_dropdown != FALSE);
/* Clear excess expressions. */
for (i = nops; i < 2; i++)
if (v->texpr[i]) {
gnm_expr_top_unref (v->texpr[i]);
v->texpr[i] = NULL;
}
return v;
}
void
gnm_data_cache_source_set_name (GnmDataCacheSource *src, char const *name)
{
GOString *new_val;
g_return_if_fail (IS_GNM_DATA_CACHE_SOURCE (src));
new_val = go_string_new (name);
go_string_unref (src->src_name);
src->src_name = new_val;
}
/**
* expr_name_set_name :
* @nexpr : the named expression
* @new_name : the new name of the expression
*
* returns: TRUE on error.
*/
gboolean
expr_name_set_name (GnmNamedExpr *nexpr,
const char *new_name)
{
const char *old_name;
GHashTable *h;
g_return_val_if_fail (nexpr != NULL, TRUE);
g_return_val_if_fail (nexpr->scope == NULL || new_name, TRUE);
old_name = nexpr->name->str;
if (go_str_compare (new_name, old_name) == 0)
return FALSE;
#if 0
g_printerr ("Renaming %s to %s\n", old_name, new_name);
#endif
h = nexpr->scope
? (nexpr->is_placeholder
? nexpr->scope->placeholders
: nexpr->scope->names)
: NULL;
if (h) {
if (new_name &&
(g_hash_table_lookup (nexpr->scope->placeholders, new_name) ||
g_hash_table_lookup (nexpr->scope->names, new_name))) {
/* The only error not to be blamed on the programmer is
already-in-use. */
return TRUE;
}
g_hash_table_steal (h, old_name);
}
go_string_unref (nexpr->name);
nexpr->name = go_string_new (new_name);
if (h)
g_hash_table_insert (h, (gpointer)nexpr->name->str, nexpr);
return FALSE;
}
/**
* expr_name_new :
*
* Creates a new name without linking it into any container.
**/
GnmNamedExpr *
expr_name_new (char const *name)
{
GnmNamedExpr *nexpr;
g_return_val_if_fail (name != NULL, NULL);
nexpr = g_new0 (GnmNamedExpr,1);
nexpr->ref_count = 1;
nexpr->name = go_string_new (name);
nexpr->texpr = NULL;
nexpr->dependents = NULL;
nexpr->is_placeholder = TRUE;
nexpr->is_hidden = FALSE;
nexpr->is_permanent = FALSE;
nexpr->is_editable = TRUE;
nexpr->scope = NULL;
if (gnm_debug_flag ("names"))
g_printerr ("Created new name %s\n", name);
return nexpr;
}
/**
* expr_name_add:
* @pp:
* @name:
* @texpr: if texpr == NULL then create a placeholder with value #NAME?
* @error_msg:
* @link_to_container:
*
* Absorbs the reference to @texpr.
* If @error_msg is non NULL it may hold a pointer to a translated descriptive
* string. NOTE : caller is responsible for freeing the error message.
*
* The reference semantics of the new expression are
* 1) new names with @link_to_container TRUE are referenced by the container.
* The caller DOES NOT OWN a reference to the result, and needs to add their
* own.
* 2) if @link_to_container is FALSE the caller DOES OWN a reference, and
* can free the result by unrefing the name.
**/
GnmNamedExpr *
expr_name_add (GnmParsePos const *pp, char const *name,
GnmExprTop const *texpr, char **error_msg,
gboolean link_to_container,
GnmNamedExpr *stub)
{
GnmNamedExpr *nexpr = NULL;
GnmNamedExprCollection *scope = NULL;
g_return_val_if_fail (pp != NULL, NULL);
g_return_val_if_fail (pp->sheet != NULL || pp->wb != NULL, NULL);
g_return_val_if_fail (name != NULL, NULL);
g_return_val_if_fail (stub == NULL || stub->is_placeholder, NULL);
if (texpr != NULL && expr_name_check_for_loop (name, texpr)) {
gnm_expr_top_unref (texpr);
if (error_msg)
*error_msg = g_strdup_printf (_("'%s' has a circular reference"), name);
return NULL;
}
scope = (pp->sheet != NULL) ? pp->sheet->names : pp->wb->names;
/* see if there was a place holder */
nexpr = g_hash_table_lookup (scope->placeholders, name);
if (nexpr != NULL) {
if (texpr == NULL) {
/* there was already a placeholder for this */
expr_name_ref (nexpr);
return nexpr;
}
/* convert the placeholder into a real name */
g_hash_table_steal (scope->placeholders, name);
nexpr->is_placeholder = FALSE;
} else {
nexpr = g_hash_table_lookup (scope->names, name);
/* If this is a permanent name, we may be adding it */
/* on opening of a file, although */
/* the name is already in place. */
if (nexpr != NULL) {
if (nexpr->is_permanent)
link_to_container = FALSE;
else {
if (error_msg != NULL)
*error_msg = (pp->sheet != NULL)
? g_strdup_printf (_("'%s' is already defined in sheet"), name)
: g_strdup_printf (_("'%s' is already defined in workbook"), name);
gnm_expr_top_unref (texpr);
return NULL;
}
}
}
if (error_msg)
*error_msg = NULL;
if (nexpr == NULL) {
if (stub != NULL) {
nexpr = stub;
stub->is_placeholder = FALSE;
go_string_unref (stub->name);
stub->name = go_string_new (name);
} else {
nexpr = expr_name_new (name);
nexpr->is_placeholder = (texpr == NULL);
}
}
parse_pos_init (&nexpr->pos,
pp->wb, pp->sheet, pp->eval.col, pp->eval.row);
if (texpr == NULL)
texpr = gnm_expr_top_new_constant
(value_new_error_NAME (NULL));
expr_name_set_expr (nexpr, texpr);
if (link_to_container)
gnm_named_expr_collection_insert (scope, nexpr);
return nexpr;
}
/**
* gnm_validation_new :
* @title: will be copied.
* @msg: will be copied.
* @texpr0: absorb the reference to the expression (optionally %NULL).
* @texpr1: absorb the reference to the expression (optionally %NULL).
*
* Does _NOT_ require all necessary information to be set here.
* gnm_validation_set_expr can be used to change the expressions after creation,
* and gnm_validation_is_ok can be used to ensure that things are properly setup.
*
* Returns a new @GnmValidation object that needs to be unrefed.
**/
GnmValidation *
gnm_validation_new (ValidationStyle style,
ValidationType type,
ValidationOp op,
Sheet *sheet,
char const *title, char const *msg,
GnmExprTop const *texpr0, GnmExprTop const *texpr1,
gboolean allow_blank, gboolean use_dropdown)
{
GnmValidation *v;
int nops;
g_return_val_if_fail (type >= 0, NULL);
g_return_val_if_fail (type < G_N_ELEMENTS (typeinfo), NULL);
g_return_val_if_fail (op >= GNM_VALIDATION_OP_NONE, NULL);
g_return_val_if_fail (op < (int)G_N_ELEMENTS (opinfo), NULL);
g_return_val_if_fail (IS_SHEET (sheet), NULL);
switch (type) {
case GNM_VALIDATION_TYPE_CUSTOM:
case GNM_VALIDATION_TYPE_IN_LIST:
nops = 1;
if (op != GNM_VALIDATION_OP_NONE) {
/*
* This can happen if an .xls file was saved
* as a .gnumeric.
*/
op = GNM_VALIDATION_OP_NONE;
}
break;
case GNM_VALIDATION_TYPE_ANY:
nops = 0;
break;
default:
nops = (op == GNM_VALIDATION_OP_NONE) ? 0 : opinfo[op].nops;
}
v = g_new0 (GnmValidation, 1);
v->ref_count = 1;
v->title = title && title[0] ? go_string_new (title) : NULL;
v->msg = msg && msg[0] ? go_string_new (msg) : NULL;
dependent_managed_init (&v->deps[0], sheet);
if (texpr0) {
if (nops > 0)
dependent_managed_set_expr (&v->deps[0], texpr0);
gnm_expr_top_unref (texpr0);
}
dependent_managed_init (&v->deps[1], sheet);
if (texpr1) {
if (nops > 1)
dependent_managed_set_expr (&v->deps[1], texpr1);
gnm_expr_top_unref (texpr1);
}
v->style = style;
v->type = type;
v->op = op;
v->allow_blank = (allow_blank != FALSE);
v->use_dropdown = (use_dropdown != FALSE);
return v;
}
