static void
graph_setup_title (GogGraph *graph, const gchar *title)
{
GogLabel *label;
GOData *data;
GOStyle *style;
PangoFontDescription *desc;
label = g_object_new(GOG_TYPE_LABEL, NULL);
data = go_data_scalar_str_new(title, FALSE);
gog_dataset_set_dim(GOG_DATASET(label), 0, data, NULL);
gog_object_add_by_name(GOG_OBJECT(graph), "Title", GOG_OBJECT(label));
style = go_styled_object_get_style(GO_STYLED_OBJECT(label));
desc = pango_font_description_from_string("Sans bold 16");
go_style_set_font_desc(style, desc);
}
static void
gogo_dim_end (GsfXMLIn *xin, G_GNUC_UNUSED GsfXMLBlob *unknown)
{
GogXMLReadState *state = (GogXMLReadState *)xin->user_state;
if (NULL == state->obj)
return;
g_return_if_fail (GOG_IS_DATASET (state->obj));
if (NULL != state->dimension) {
if (go_data_unserialize (state->dimension,
xin->content->str,
state->user_unserialize))
gog_dataset_set_dim (GOG_DATASET (state->obj),
state->dimension_id, state->dimension, NULL);
else
g_object_unref (state->dimension);
state->dimension = NULL;
}
}
static GogPlot *
setup_page (GtkNotebook *notebook, const gchar *service_id)
{
GtkWidget *child, *w;
GogChart *chart;
GogGraph *graph;
GogLabel *label;
GogPlot *plot;
GOData *data;
GOStyle *style;
PangoFontDescription *desc;
child = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_notebook_append_page (notebook, child, gtk_label_new (service_id));
/* Create a graph widget and add it to the GtkVBox */
w = go_graph_widget_new (NULL);
gtk_box_pack_end (GTK_BOX (child), w, TRUE, TRUE, 0);
/* Get the embedded graph */
graph = go_graph_widget_get_graph (GO_GRAPH_WIDGET (w));
/* Add a title */
label = (GogLabel *) g_object_new (GOG_TYPE_LABEL, NULL);
data = go_data_scalar_str_new (service_id, FALSE);
gog_dataset_set_dim (GOG_DATASET (label), 0, data, NULL);
gog_object_add_by_name (GOG_OBJECT (graph), "Title", GOG_OBJECT (label));
/* Change the title font */
style = go_styled_object_get_style (GO_STYLED_OBJECT (label));
desc = pango_font_description_from_string ("Sans bold 16");
go_style_set_font_desc (style, desc);
/* Get the chart created by the widget initialization */
chart = go_graph_widget_get_chart (GO_GRAPH_WIDGET (w));
/* Create a plot and add it to the chart */
plot = (GogPlot *) gog_plot_new_by_name (service_id);
gog_object_add_by_name (GOG_OBJECT (chart), "Plot", GOG_OBJECT (plot));
/* Add a legend to the chart */
gog_object_add_by_name (GOG_OBJECT (chart), "Legend", NULL);
return plot;
}
int
main (int argc, char *argv[])
{
GtkWidget *window, *box, *w;
GogChart *chart;
GogGraph *graph;
GogLabel *label;
GogPlot *pie;
GogSeries *series;
GOStyle *style;
GOData *data;
GError *error;
PangoFontDescription *desc;
char const *title = "Some statistics";
char const * const legends[] = {"first", "second", "third", "fourth"};
double values[] = {10., 20., 30., 40.};
gtk_init (&argc, &argv);
/* Initialize libgoffice */
libgoffice_init ();
/* Initialize plugins manager */
go_plugins_init (NULL, NULL, NULL, NULL, TRUE, GO_TYPE_PLUGIN_LOADER_MODULE);
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_resize (GTK_WINDOW (window), 300, 340);
gtk_window_set_title (GTK_WINDOW (window), "pie demo");
g_signal_connect (window, "destroy", gtk_main_quit, NULL);
box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
w = gtk_button_new_from_stock (GTK_STOCK_QUIT);
g_signal_connect_swapped (w, "clicked", G_CALLBACK (on_quit), window);
gtk_box_pack_end (GTK_BOX (box), w, FALSE, FALSE, 0);
w = gtk_separator_new (GTK_ORIENTATION_HORIZONTAL);
gtk_box_pack_end (GTK_BOX (box), w, FALSE, FALSE, 2);
/* Create a graph widget and add it to the GtkVBox */
w = go_graph_widget_new (NULL);
gtk_box_pack_end (GTK_BOX (box), w, TRUE, TRUE, 0);
/* Get the embedded graph */
graph = go_graph_widget_get_graph (GO_GRAPH_WIDGET (w));
/* Add a title */
label = (GogLabel *) g_object_new (GOG_TYPE_LABEL, NULL);
data = go_data_scalar_str_new (title, FALSE);
gog_dataset_set_dim (GOG_DATASET (label), 0, data, NULL);
gog_object_add_by_name (GOG_OBJECT (graph), "Title", GOG_OBJECT (label));
/* Change the title font */
style = go_styled_object_get_style (GO_STYLED_OBJECT (label));
desc = pango_font_description_from_string ("Sans bold 16");
go_style_set_font_desc (style, desc);
/* Get the chart created by the widget initialization */
chart = go_graph_widget_get_chart (GO_GRAPH_WIDGET (w));
/* Create a pie plot and add it to the chart */
pie = (GogPlot *) gog_plot_new_by_name ("GogPiePlot");
gog_object_add_by_name (GOG_OBJECT (chart), "Plot", GOG_OBJECT (pie));
/* Create a series for the plot and populate it with some simple data */
series = gog_plot_new_series (pie);
data = go_data_vector_str_new (legends, 4, NULL);
gog_series_set_dim (series, 0, data, &error);
data = go_data_vector_val_new (values, 4, NULL);
gog_series_set_dim (series, 1, data, &error);
/* Add a legend to the chart */
gog_object_add_by_name (GOG_OBJECT (chart), "Legend", NULL);
gtk_container_add (GTK_CONTAINER (window), box);
gtk_widget_show_all (GTK_WIDGET (window));
w = gtk_separator_new (GTK_ORIENTATION_HORIZONTAL);
gtk_box_pack_start (GTK_BOX (box), w, FALSE, FALSE, 0);
gtk_main ();
/* Clean libgoffice stuff */
libgoffice_shutdown ();
return 0;
}
