static void
gog_pie_series_update (GogObject *obj)
{
double *vals = NULL, total;
int len = 0;
GogPieSeries *series = GOG_PIE_SERIES (obj);
unsigned old_num = series->base.num_elements;
GogShowNegsMode mode = GOG_PIE_PLOT (series->base.plot)->show_negatives;
if (series->base.values[1].data != NULL) {
vals = go_data_get_values (series->base.values[1].data);
len = go_data_get_vector_size (series->base.values[1].data);
}
series->base.num_elements = len;
for (total = 0. ; len-- > 0 ;) {
double val = vals[len];
if (go_finite (val)) {
if (val < 0)
val = (mode == GOG_SHOW_NEGS_SKIP)? 0.: -val;
total += val;
}
}
series->total = total;
/* queue plot for redraw */
gog_object_request_update (GOG_OBJECT (series->base.plot));
if (old_num != series->base.num_elements)
gog_plot_request_cardinality_update (series->base.plot);
if (series_parent_klass->update)
series_parent_klass->update (obj);
}
static void
gog_xy_dropbar_series_update (GogObject *obj)
{
const double *x_vals, *y_vals, *z_vals;
GogSeries *series = GOG_SERIES (obj);
unsigned old_num = series->num_elements;
series->num_elements = gog_series_get_xyz_data (series,
&x_vals, &y_vals, &z_vals);
/* queue plot for redraw */
gog_object_request_update (GOG_OBJECT (series->plot));
if (old_num != series->num_elements)
gog_plot_request_cardinality_update (series->plot);
if (series_parent_klass->update)
series_parent_klass->update (obj);
}
static void
gog_trend_line_set_property (GObject *obj, guint param_id,
GValue const *value, GParamSpec *pspec)
{
gboolean b_tmp;
switch (param_id) {
case TREND_LINE_PROP_HAS_LEGEND :
b_tmp = g_value_get_boolean (value);
if (GPOINTER_TO_INT (g_object_get_data (obj, "has-legend")) ^ b_tmp) {
GogSeries *series = GOG_SERIES (gog_object_get_parent (GOG_OBJECT (obj)));
g_object_set_data (obj, "has-legend", GINT_TO_POINTER (b_tmp));
if (series->plot != NULL)
gog_plot_request_cardinality_update (series->plot);
}
break;
default: G_OBJECT_WARN_INVALID_PROPERTY_ID (obj, param_id, pspec);
return; /* NOTE : RETURN */
}
gog_object_emit_changed (GOG_OBJECT (obj), FALSE);
}
