static void
render_symbol_markup(G_GNUC_UNUSED GtkTreeViewColumn *column,
GtkCellRenderer *renderer,
GtkTreeModel *model,
GtkTreeIter *iter,
gpointer user_data)
{
GtkTreeView *treeview = (GtkTreeView*)user_data;
GwyGrainValue *gvalue;
GdkColor color;
gtk_tree_model_get(model, iter,
GWY_GRAIN_VALUE_STORE_COLUMN_ITEM, &gvalue,
-1);
if (gvalue) {
text_color(treeview, gvalue, &color);
g_object_set(renderer,
"markup", gwy_grain_value_get_symbol_markup(gvalue),
"foreground-gdk", &color,
NULL);
g_object_unref(gvalue);
}
else
g_object_set(renderer, "text", "", NULL);
}
static GwyGraphModel*
create_corr_graph(GrainCrossArgs *args,
GwyDataField *dfield)
{
GwyGraphCurveModel *cmodel;
GwyGraphModel *gmodel;
GwyGrainValue *gvalues[2];
gdouble *xdata, *ydata, *bothdata, *rdata[2];
GwySIUnit *siunitxy, *siunitz, *siunitx, *siunity;
const gchar *title;
gint i;
gvalues[0] = gwy_grain_values_get_grain_value(args->abscissa);
gvalues[1] = gwy_grain_values_get_grain_value(args->ordinate);
bothdata = g_new(gdouble, 4*args->ngrains + 2);
rdata[0] = xdata = bothdata + 2*args->ngrains;
rdata[1] = ydata = bothdata + 3*args->ngrains + 1;
gwy_grain_values_calculate(2, gvalues, rdata, dfield,
args->ngrains, args->grains);
for (i = 0; i < args->ngrains; i++) {
bothdata[2*i + 0] = xdata[i+1];
bothdata[2*i + 1] = ydata[i+1];
}
qsort(bothdata, args->ngrains, 2*sizeof(gdouble), compare_doubles);
for (i = 0; i < args->ngrains; i++) {
xdata[i] = bothdata[2*i + 0];
ydata[i] = bothdata[2*i + 1];
}
gmodel = gwy_graph_model_new();
cmodel = gwy_graph_curve_model_new();
gwy_graph_model_add_curve(gmodel, cmodel);
g_object_unref(cmodel);
siunitxy = gwy_data_field_get_si_unit_xy(dfield);
siunitz = gwy_data_field_get_si_unit_z(dfield);
siunitx = gwy_si_unit_power_multiply
(siunitxy, gwy_grain_value_get_power_xy(gvalues[0]),
siunitz, gwy_grain_value_get_power_z(gvalues[0]),
NULL);
siunity = gwy_si_unit_power_multiply
(siunitxy, gwy_grain_value_get_power_xy(gvalues[1]),
siunitz, gwy_grain_value_get_power_z(gvalues[1]),
NULL);
/* FIXME */
title = gettext(gwy_resource_get_name(GWY_RESOURCE(gvalues[1])));
g_object_set
(gmodel,
"title", title,
"axis-label-left", gwy_grain_value_get_symbol_markup(gvalues[1]),
"axis-label-bottom", gwy_grain_value_get_symbol_markup(gvalues[0]),
"si-unit-x", siunitx,
"si-unit-y", siunity,
NULL);
g_object_unref(siunitx);
g_object_unref(siunity);
g_object_set(cmodel,
"description", title,
"mode", GWY_GRAPH_CURVE_POINTS,
NULL);
gwy_graph_curve_model_set_data(cmodel, xdata, ydata, args->ngrains);
g_free(bothdata);
return gmodel;
}
