static VALUE
rbclt_model_iter_is_last (VALUE self)
{
ClutterModelIter *iter = CLUTTER_MODEL_ITER (RVAL2GOBJ (self));
return clutter_model_iter_is_last (iter) ? Qtrue : Qfalse;
}
static VALUE
rbclt_model_iter_dup (VALUE self)
{
ClutterModelIter *iter = CLUTTER_MODEL_ITER (RVAL2GOBJ (self));
return GOBJ2RVALU (clutter_model_iter_copy (iter));
}
static VALUE
rbclt_model_filter_iter (VALUE self, VALUE iter)
{
return clutter_model_filter_iter (CLUTTER_MODEL (RVAL2GOBJ (self)),
CLUTTER_MODEL_ITER (RVAL2GOBJ (iter)))
? Qtrue : Qfalse;
}
static VALUE
rbclt_model_iter_set (int argc, VALUE *argv, VALUE self)
{
ClutterModel *model;
int state = 0;
GetData data;
int i;
if ((argc & 1))
rb_raise (rb_eArgError, "wrong number of arguments "
"(paired arguments required)");
data.iter = CLUTTER_MODEL_ITER (RVAL2GOBJ (self));
model = clutter_model_iter_get_model (data.iter);
for (i = 0; i < argc && state == 0; i += 2)
{
data.column = NUM2UINT (argv[i]);
data.rvalue = argv[i + 1];
memset (&data.value, 0, sizeof (data.value));
g_value_init (&data.value, clutter_model_get_column_type (model,
data.column));
rb_protect (rbclt_model_iter_do_set, (VALUE) &data, &state);
g_value_unset (&data.value);
}
if (state)
rb_jump_tag (state);
return self;
}
static ClutterModelIter *
clutter_list_model_iter_copy (ClutterModelIter *iter)
{
ClutterListModelIter *iter_default;
ClutterListModelIter *iter_copy;
ClutterModel *model;
guint row;
iter_default = CLUTTER_LIST_MODEL_ITER (iter);
model = clutter_model_iter_get_model (iter);
row = clutter_model_iter_get_row (iter) - 1;
iter_copy = g_object_new (CLUTTER_TYPE_LIST_MODEL_ITER,
"model", model,
"row", row,
NULL);
/* this is safe, because the seq_iter pointer on the passed
* iterator will be always be overwritten in ::next or ::prev
*/
iter_copy->seq_iter = iter_default->seq_iter;
return CLUTTER_MODEL_ITER (iter_copy);
}
static VALUE
rbclt_model_iter_prev (VALUE self)
{
ClutterModelIter *iter = CLUTTER_MODEL_ITER (RVAL2GOBJ (self));
ClutterModelIter *iter_copy = clutter_model_iter_copy (iter);
return rbclt_model_iter_prev_bang (GOBJ2RVALU (iter_copy));
}
static VALUE
rbclt_model_iter_prev_bang (VALUE self)
{
ClutterModelIter *iter = CLUTTER_MODEL_ITER (RVAL2GOBJ (self));
clutter_model_iter_prev (iter);
return self;
}
static ClutterModelIter *
clutter_list_model_iter_prev (ClutterModelIter *iter)
{
ClutterListModelIter *iter_default;
ClutterModelIter *temp_iter;
ClutterModel *model;
GSequenceIter *filter_prev;
guint row;
iter_default = CLUTTER_LIST_MODEL_ITER (iter);
g_assert (iter_default->seq_iter != NULL);
model = clutter_model_iter_get_model (iter);
row = clutter_model_iter_get_row (iter);
filter_prev = g_sequence_iter_prev (iter_default->seq_iter);
g_assert (filter_prev != NULL);
temp_iter = CLUTTER_LIST_MODEL (model)->priv->temp_iter;
while (!g_sequence_iter_is_begin (filter_prev))
{
CLUTTER_LIST_MODEL_ITER (temp_iter)->seq_iter = filter_prev;
if (clutter_model_filter_iter (model, temp_iter))
{
row -= 1;
break;
}
filter_prev = g_sequence_iter_prev (filter_prev);
}
if (g_sequence_iter_is_begin (filter_prev))
row -= 1;
/* update the iterator and return it */
clutter_model_iter_set_row (CLUTTER_MODEL_ITER (iter_default), row);
iter_default->seq_iter = filter_prev;
return CLUTTER_MODEL_ITER (iter_default);
}
static VALUE
rbclt_model_iter_get (int argc, VALUE *argv, VALUE self)
{
ClutterModel *model;
int state = 0;
VALUE ret = Qnil;
GetData data;
data.iter = CLUTTER_MODEL_ITER (RVAL2GOBJ (self));
model = clutter_model_iter_get_model (data.iter);
if (argc == 1)
{
data.column = NUM2UINT (argv[0]);
memset (&data.value, 0, sizeof (data.value));
rb_protect (rbclt_model_iter_do_get, (VALUE) &data, &state);
g_value_unset (&data.value);
if (state == 0)
ret = data.rvalue;
}
else
{
int i;
ret = rb_ary_new ();
for (i = 0; i < argc; i++)
{
data.column = NUM2UINT (argv[i]);
memset (&data.value, 0, sizeof (data.value));
rb_protect (rbclt_model_iter_do_get, (VALUE) &data, &state);
g_value_unset (&data.value);
if (state)
break;
rb_ary_push (ret, data.rvalue);
}
}
if (state)
rb_jump_tag (state);
return ret;
}
static ClutterModelIter *
clutter_list_model_insert_row (ClutterModel *model,
gint index_)
{
ClutterListModel *model_default = CLUTTER_LIST_MODEL (model);
GSequence *sequence = model_default->priv->sequence;
ClutterListModelIter *retval;
guint n_columns, i, pos;
GValueArray *array;
GSequenceIter *seq_iter;
n_columns = clutter_model_get_n_columns (model);
array = g_value_array_new (n_columns);
for (i = 0; i < n_columns; i++)
{
GValue *value = NULL;
g_value_array_append (array, NULL);
value = g_value_array_get_nth (array, i);
g_value_init (value, clutter_model_get_column_type (model, i));
}
if (index_ < 0)
{
seq_iter = g_sequence_append (sequence, array);
pos = g_sequence_get_length (sequence) - 1;
}
else if (index_ == 0)
{
seq_iter = g_sequence_prepend (sequence, array);
pos = 0;
}
else
{
seq_iter = g_sequence_get_iter_at_pos (sequence, index_);
seq_iter = g_sequence_insert_before (seq_iter, array);
pos = index_;
}
retval = g_object_new (CLUTTER_TYPE_LIST_MODEL_ITER,
"model", model,
"row", pos,
NULL);
retval->seq_iter = seq_iter;
return CLUTTER_MODEL_ITER (retval);
}
static ClutterModelIter *
gmc_video_model_get_iter_at_row (ClutterModel *model,
guint row)
{
GmcVideoModelPrivate *priv;
GmcVideoModelIter *iter;
gchar *query, *tmp;
gint column;
sqlite3_stmt *statement;
gint error_code;
priv = GMC_VIDEO_MODEL_GET_PRIVATE (model);
query = g_strdup_printf ("SELECT Title FROM %s", TABLE);
column = clutter_model_get_sorting_column (model);
if (column != -1) {
tmp = g_strdup_printf ("%s ORDER BY %s", query, clutter_model_get_column_name (model, column));
g_free (query);
query = tmp;
}
tmp = g_strdup_printf ("%s LIMIT %d, 1", query, row);
g_free (query);
query = tmp;
error_code = sqlite3_prepare_v2 (priv->sql, query, strlen (query), &statement, NULL);
g_free (query);
if (error_code != SQLITE_OK) {
g_critical ("%s [prepare] : %d - %s", G_STRFUNC, error_code, sqlite3_errmsg (priv->sql));
return 0;
}
error_code = sqlite3_step (statement);
if (error_code != SQLITE_ROW) {
g_critical ("%s [step] : %d - %s", G_STRFUNC, error_code, sqlite3_errmsg (priv->sql));
return 0;
}
sqlite3_finalize (statement);
iter = g_object_new (GMC_TYPE_VIDEO_MODEL_ITER,
"model", model,
"row", row,
NULL);
return CLUTTER_MODEL_ITER (iter);
}
static ClutterModelIter *
gmc_video_model_insert_row (ClutterModel *model,
gint index)
{
GmcVideoModelIter *iter;
GmcVideoModelPrivate *priv;
sqlite3_stmt *statement;
guint n_rows;
gint error_code;
gchar *query;
priv = GMC_VIDEO_MODEL_GET_PRIVATE (model);
n_rows = clutter_model_get_n_rows (model);
query = g_strdup_printf ("INSERT INTO %s (Title) VALUES ('_')", TABLE);
error_code = sqlite3_prepare_v2 (priv->sql, query, strlen (query), &statement, NULL);
g_free (query);
if (error_code != SQLITE_OK) {
g_critical ("%s [prepare] : %d - %s", G_STRFUNC, error_code, sqlite3_errmsg (priv->sql));
return 0;
}
error_code = sqlite3_step (statement);
if (error_code != SQLITE_DONE) {
g_critical ("%s [step] : %d - %s", G_STRFUNC, error_code, sqlite3_errmsg (priv->sql));
return 0;
}
sqlite3_finalize (statement);
iter = g_object_new (GMC_TYPE_VIDEO_MODEL_ITER,
"model", model,
"row", n_rows,
NULL);
return CLUTTER_MODEL_ITER (iter);
}
static ClutterModelIter *
clutter_list_model_get_iter_at_row (ClutterModel *model,
guint row)
{
ClutterListModel *model_default = CLUTTER_LIST_MODEL (model);
GSequence *sequence = model_default->priv->sequence;
gint seq_length = g_sequence_get_length (sequence);
ClutterListModelIter *retval;
if (row >= seq_length)
return NULL;
retval = g_object_new (CLUTTER_TYPE_LIST_MODEL_ITER,
"model", model,
"row", row,
NULL);
/* short-circuit in case we don't have a filter in place */
if (!clutter_model_get_filter_set (model))
{
retval->seq_iter = g_sequence_get_iter_at_pos (sequence, row);
return CLUTTER_MODEL_ITER (retval);
}
if (row == 0)
{
GSequenceIter *filter_next;
gboolean row_found = FALSE;
filter_next = g_sequence_get_begin_iter (sequence);
g_assert (filter_next != NULL);
while (!g_sequence_iter_is_end (filter_next))
{
retval->seq_iter = filter_next;
if (clutter_model_filter_iter (model, CLUTTER_MODEL_ITER (retval)))
{
/* We've found a row that is valid under the filter */
row_found = TRUE;
break;
}
filter_next = g_sequence_iter_next (filter_next);
}
/* Everything has been filtered -> there is no first row */
if (!row_found)
{
g_object_unref (retval);
return NULL;
}
}
else
{
GSequenceIter *filter_prev;
filter_prev = g_sequence_get_end_iter (sequence);
g_assert (filter_prev != NULL);
filter_prev = g_sequence_iter_prev (filter_prev);
while (!g_sequence_iter_is_begin (filter_prev))
{
retval->seq_iter = filter_prev;
if (clutter_model_filter_iter (model, CLUTTER_MODEL_ITER (retval)))
break;
filter_prev = g_sequence_iter_prev (filter_prev);
}
}
return CLUTTER_MODEL_ITER (retval);
}
