PrintContext

Encapsulates context information that is required when drawing pages for printing.

This includes the cairo context and important parameters like page size and resolution. It also lets you easily create [class@Pango.Layout] and [class@Pango.Context] objects that match the font metrics of the cairo surface.

`GtkPrintContext` objects get passed to the [signal@Gtk.PrintOperation:GtkPrintContext:begin-print], [signal@Gtk.PrintOperation: GtkPrintContext:end-print], [signal@Gtk.PrintOperation:GtkPrintContext:request-page-setup] and [ signal@Gtk.PrintOperation:GtkPrintContext:draw-page] signals on the [class@Gtk.PrintOperation] object.

Using GtkPrintContext in a GtkPrintContext::draw-page callback

```c static void draw_page (GtkPrintOperation *operation, GtkPrintContext *context, int page_nr) { cairo_t *cr; PangoLayout *layout; PangoFontDescription *desc;

cr = gtk_print_context_get_cairo_context (context);

// Draw a red rectangle, as wide as the paper (inside the margins) cairo_set_source_rgb (cr, 1.0, 0, 0); cairo_rectangle (cr, 0, 0, gtk_print_context_get_width (context), 50);

cairo_fill (cr);

// Draw some lines cairo_move_to (cr, 20, 10); cairo_line_to (cr, 40, 20); cairo_arc (cr, 60, 60, 20, 0, M_PI); cairo_line_to (cr, 80, 20);

cairo_set_source_rgb (cr, 0, 0, 0); cairo_set_line_width (cr, 5); cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);

cairo_stroke (cr);

// Draw some text layout = gtk_print_context_create_pango_layout (context); pango_layout_set_text (layout, "Hello World! Printing is easy", -1); desc = pango_font_description_from_string ("sans 28"); pango_layout_set_font_description (layout, desc); pango_font_description_free ( desc);

cairo_move_to (cr, 30, 20); pango_cairo_layout_path (cr, layout);

// Font Outline cairo_set_source_rgb (cr, 0.93, 1.0, 0.47); cairo_set_line_width (cr, 0.5); cairo_stroke_preserve (cr);

// Font Fill cairo_set_source_rgb (cr, 0, 0.0, 1.0); cairo_fill (cr);

g_object_unref (layout); } ```