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Within LTS Haskell 24.41 (ghc-9.10.3)

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  1. notebookPageAccessibleInvalidate :: (HasCallStack, MonadIO m, IsNotebookPageAccessible a) => a -> m ()

    gi-gtk3 GI.Gtk.Objects.NotebookPageAccessible

    No description available in the introspection data.

  2. notebookPageAccessibleNew :: (HasCallStack, MonadIO m, IsNotebookAccessible a, IsWidget b) => a -> b -> m NotebookPageAccessible

    gi-gtk3 GI.Gtk.Objects.NotebookPageAccessible

    No description available in the introspection data.

  3. toNotebookPageAccessible :: (MonadIO m, IsNotebookPageAccessible o) => o -> m NotebookPageAccessible

    gi-gtk3 GI.Gtk.Objects.NotebookPageAccessible

    Cast to NotebookPageAccessible, for types for which this is known to be safe. For general casts, use castTo.

  4. class (GObject o, IsDescendantOf PageSetup o) => IsPageSetup o

    gi-gtk3 GI.Gtk.Objects.PageSetup

    Type class for types which can be safely cast to PageSetup, for instance with toPageSetup.

  5. toPageSetup :: (MonadIO m, IsPageSetup o) => o -> m PageSetup

    gi-gtk3 GI.Gtk.Objects.PageSetup

    Cast to PageSetup, for types for which this is known to be safe. For general casts, use castTo.

  6. printContextGetPageSetup :: (HasCallStack, MonadIO m, IsPrintContext a) => a -> m PageSetup

    gi-gtk3 GI.Gtk.Objects.PrintContext

    Obtains the PageSetup that determines the page dimensions of the PrintContext. Since: 2.10

  7. type PrintOperationDrawPageCallback = PrintContext -> Int32 -> IO ()

    gi-gtk3 GI.Gtk.Objects.PrintOperation

    Emitted for every page that is printed. The signal handler must render the pageNr's page onto the cairo context obtained from context using printContextGetCairoContext.

    C code

    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 printOperationSetUseFullPage and printOperationSetUnit before starting the print operation to set up the transformation of the cairo context according to your needs. Since: 2.10

  8. type PrintOperationRequestPageSetupCallback = PrintContext -> Int32 -> PageSetup -> IO ()

    gi-gtk3 GI.Gtk.Objects.PrintOperation

    Emitted once for every page that is printed, to give the application a chance to modify the page setup. Any changes done to setup will be in force only for printing this page. Since: 2.10

  9. afterPrintOperationDrawPage :: (IsPrintOperation a, MonadIO m) => a -> ((?self :: a) => PrintOperationDrawPageCallback) -> m SignalHandlerId

    gi-gtk3 GI.Gtk.Objects.PrintOperation

    Connect a signal handler for the drawPage signal, to be run after the default handler. When overloading is enabled, this is equivalent to 

    after printOperation #drawPage callback
    By default the object invoking the signal is not passed to the callback. If you need to access it, you can use the implit ?self parameter. Note that this requires activating the ImplicitParams GHC extension.

  10. afterPrintOperationRequestPageSetup :: (IsPrintOperation a, MonadIO m) => a -> ((?self :: a) => PrintOperationRequestPageSetupCallback) -> m SignalHandlerId

    gi-gtk3 GI.Gtk.Objects.PrintOperation

    Connect a signal handler for the requestPageSetup signal, to be run after the default handler. When overloading is enabled, this is equivalent to 

    after printOperation #requestPageSetup callback
    By default the object invoking the signal is not passed to the callback. If you need to access it, you can use the implit ?self parameter. Note that this requires activating the ImplicitParams GHC extension.

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