PrintOperation.addOnDrawPage

Emitted for every page that is printed. The signal handler must render the @page_nr's page onto the cairo context obtained from @context using gtk_print_context_get_cairo_context(). |[<!-- language="C" --> static void draw_page (GtkPrintOperation *operation, GtkPrintContext *context, gint page_nr, gpointer user_data) { cairo_t *cr; PangoLayout *layout; gdouble width, text_height; gint layout_height; PangoFontDescription *desc;

cr = gtk_print_context_get_cairo_context (context); width = gtk_print_context_get_width (context);

cairo_rectangle (cr, 0, 0, width, HEADER_HEIGHT);

cairo_set_source_rgb (cr, 0.8, 0.8, 0.8); cairo_fill (cr);

layout = gtk_print_context_create_pango_layout (context);

desc = pango_font_description_from_string ("sans 14"); pango_layout_set_font_description (layout, desc); pango_font_description_free (desc);

pango_layout_set_text (layout, "some text", -1); pango_layout_set_width (layout, width * PANGO_SCALE); pango_layout_set_alignment (layout, PANGO_ALIGN_CENTER);

pango_layout_get_size (layout, NULL, &layout_height); text_height = (gdouble)layout_height / PANGO_SCALE;

cairo_move_to (cr, width / 2, (HEADER_HEIGHT - text_height) / 2); pango_cairo_show_layout (cr, layout);

g_object_unref (layout); } ]|

Use gtk_print_operation_set_use_full_page() and gtk_print_operation_set_unit() before starting the print operation to set up the transformation of the cairo context according to your needs.

class PrintOperation
void
addOnDrawPage

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Since

2.10