static void
grain_cross(GwyContainer *data, GwyRunType run)
{
GwySIUnit *siunitxy, *siunitz;
GrainCrossArgs args;
GwyDataField *dfield;
GwyDataField *mfield;
gint id;
g_return_if_fail(run & CROSS_RUN_MODES);
grain_cross_load_args(gwy_app_settings_get(), &args);
gwy_app_data_browser_get_current(GWY_APP_DATA_FIELD, &dfield,
GWY_APP_DATA_FIELD_ID, &id,
GWY_APP_MASK_FIELD, &mfield,
0);
g_return_if_fail(dfield && mfield);
siunitxy = gwy_data_field_get_si_unit_xy(dfield);
siunitz = gwy_data_field_get_si_unit_z(dfield);
args.units_equal = gwy_si_unit_equal(siunitxy, siunitz);
if (!args.units_equal) {
GwyGrainValue *abscissa, *ordinate;
GwyGrainValueFlags aflags, oflags;
abscissa = gwy_grain_values_get_grain_value(args.abscissa);
ordinate = gwy_grain_values_get_grain_value(args.ordinate);
aflags = gwy_grain_value_get_flags(abscissa);
oflags = gwy_grain_value_get_flags(ordinate);
if ((aflags | oflags) & GWY_GRAIN_VALUE_SAME_UNITS) {
if (run == GWY_RUN_IMMEDIATE) {
require_same_units_dialog(data, id);
return;
}
if (aflags & GWY_GRAIN_VALUE_SAME_UNITS) {
args.abscissa = grain_cross_defaults.abscissa;
args.abscissa_expanded = grain_cross_defaults.abscissa_expanded;
}
if (oflags & GWY_GRAIN_VALUE_SAME_UNITS) {
args.ordinate = grain_cross_defaults.ordinate;
args.ordinate_expanded = grain_cross_defaults.ordinate_expanded;
}
}
}
args.grains = g_new0(gint, mfield->xres*mfield->yres);
args.ngrains = gwy_data_field_number_grains(mfield, args.grains);
if (run == GWY_RUN_IMMEDIATE)
grain_cross_run(&args, data, dfield);
else {
if (grain_cross_dialog(&args, dfield))
grain_cross_run(&args, data, dfield);
grain_cross_save_args(gwy_app_settings_get(), &args);
}
g_free(args.grains);
}
static gboolean
units_are_good(GtkTreeView *treeview,
GwyGrainValue *gvalue)
{
GrainValueViewPrivate *priv;
priv = g_object_get_qdata(G_OBJECT(treeview), priv_quark);
if (priv->same_units)
return TRUE;
return !(gwy_grain_value_get_flags(gvalue) & GWY_GRAIN_VALUE_SAME_UNITS);
}
