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);
}
void
gog_chart_request_cardinality_update (GogChart *chart)
{
g_return_if_fail (GOG_IS_CHART (chart));
if (chart->cardinality_valid) {
chart->cardinality_valid = FALSE;
gog_object_request_update (GOG_OBJECT (chart));
}
}
static void
color_scale_pre_remove (GogObject *parent, GogObject *scale)
{
/* Unlink the color scale */
GSList const *l = gog_axis_contributors (gog_color_scale_get_axis (GOG_COLOR_SCALE (scale)));
gog_color_scale_set_axis (GOG_COLOR_SCALE (scale), NULL);
for (; l; l = l->next)
gog_object_request_update (GOG_OBJECT (l->data));
gog_chart_request_cardinality_update (GOG_CHART (parent));
}
static void
gog_smoothed_curve_dataset_dim_changed (GogDataset *set, int dim_i)
{
GogSmoothedCurveClass *klass = (GogSmoothedCurveClass *) G_OBJECT_GET_CLASS (set);
g_return_if_fail (dim_i >= -1 && dim_i <= klass->max_dim);
{
GogSmoothedCurve const *sc = GOG_SMOOTHED_CURVE (set);
if (dim_i == -1) {
GOData *name_src = sc->name->data;
char *name = (name_src != NULL)
? go_data_get_scalar_string (name_src) : NULL;
gog_object_set_name (GOG_OBJECT (set), name, NULL);
} else
gog_object_request_update (GOG_OBJECT (set));
}
}
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_pie_plot_set_property (GObject *obj, guint param_id,
GValue const *value, GParamSpec *pspec)
{
GogPiePlot *pie = GOG_PIE_PLOT (obj);
switch (param_id) {
case PLOT_PROP_INITIAL_ANGLE: {
double a = g_value_get_double (value);
a = fmod (a, 360);
if (a < 0) a += 360;
pie->initial_angle = a;
break;
}
case PLOT_PROP_DEFAULT_SEPARATION: {
double f = g_value_get_double (value);
pie->default_separation = CLAMP (f, 0., 5.);
break;
}
case PLOT_PROP_IN_3D:
pie->in_3d = g_value_get_boolean (value);
break;
case PLOT_PROP_SPAN:
pie->span = g_value_get_double (value);
break;
case PLOT_PROP_SHOW_NEGS : {
GSList *ptr = GOG_PLOT (obj)->series;
pie->show_negatives = gog_show_neg_mode_from_str (g_value_get_string (value));
/* we need to update all the series */
while (ptr) {
gog_object_request_update (GOG_OBJECT (ptr->data));
ptr = ptr->next;
}
break;
}
default: G_OBJECT_WARN_INVALID_PROPERTY_ID (obj, param_id, pspec);
return; /* NOTE : RETURN */
}
/* none of the attributes triggers a size change yet.
* When we add data labels we'll need it */
gog_object_emit_changed (GOG_OBJECT (obj), FALSE);
}
static void
color_scale_post_add (GogObject *parent, GogObject *child)
{
/* Link the color scale to an axis without a preexisting color scale */
GogChart *chart = GOG_CHART (parent);
GSList *ptr;
GogAxis *axis;
GogAxisType type;
GSList const *l;
for (ptr = chart->axes; ptr && ptr->data; ptr = ptr->next) {
axis = GOG_AXIS (ptr->data);
type = gog_axis_get_atype (axis);
if ((type == GOG_AXIS_COLOR || type == GOG_AXIS_PSEUDO_3D)
&& gog_axis_get_color_scale (axis) == NULL) {
gog_color_scale_set_axis (GOG_COLOR_SCALE (child), axis);
for (l = gog_axis_contributors (axis); l; l = l->next)
gog_object_request_update (GOG_OBJECT (l->data));
break;
}
}
gog_chart_request_cardinality_update (chart);
}
