// This file was generated by gir (https://github.com/gtk-rs/gir)
// from gir-files (https://github.com/gtk-rs/gir-files)
// DO NOT EDIT

use glib;
use glib::object::Cast;
use glib::object::IsA;
use glib::signal::connect_raw;
use glib::signal::SignalHandlerId;
use glib::translate::*;
use glib::GString;
use glib::StaticType;
use glib::ToValue;
use glib::Value;
use glib_sys;
use gobject_sys;
use gtk_sys;
use libc;
use std;
use std::boxed::Box as Box_;
use std::fmt;
use std::mem::transmute;
use std::ptr;
use PageSetup;
use PrintContext;
use PrintOperationAction;
use PrintOperationPreview;
use PrintOperationResult;
use PrintSettings;
use PrintStatus;
use Unit;
use Widget;
use Window;

glib_wrapper! {
    pub struct PrintOperation(Object<gtk_sys::GtkPrintOperation, gtk_sys::GtkPrintOperationClass, PrintOperationClass>) @implements PrintOperationPreview;

    match fn {
        get_type => || gtk_sys::gtk_print_operation_get_type(),
    }
}

impl PrintOperation {
    pub fn new() -> PrintOperation {
        assert_initialized_main_thread!();
        unsafe { from_glib_full(gtk_sys::gtk_print_operation_new()) }
    }
}

impl Default for PrintOperation {
    fn default() -> Self {
        Self::new()
    }
}

#[derive(Clone, Default)]
pub struct PrintOperationBuilder {
    allow_async: Option<bool>,
    current_page: Option<i32>,
    custom_tab_label: Option<String>,
    default_page_setup: Option<PageSetup>,
    embed_page_setup: Option<bool>,
    export_filename: Option<String>,
    has_selection: Option<bool>,
    job_name: Option<String>,
    n_pages: Option<i32>,
    print_settings: Option<PrintSettings>,
    show_progress: Option<bool>,
    support_selection: Option<bool>,
    track_print_status: Option<bool>,
    unit: Option<Unit>,
    use_full_page: Option<bool>,
}

impl PrintOperationBuilder {
    pub fn new() -> Self {
        Self::default()
    }

    pub fn build(self) -> PrintOperation {
        let mut properties: Vec<(&str, &dyn ToValue)> = vec![];
        if let Some(ref allow_async) = self.allow_async {
            properties.push(("allow-async", allow_async));
        }
        if let Some(ref current_page) = self.current_page {
            properties.push(("current-page", current_page));
        }
        if let Some(ref custom_tab_label) = self.custom_tab_label {
            properties.push(("custom-tab-label", custom_tab_label));
        }
        if let Some(ref default_page_setup) = self.default_page_setup {
            properties.push(("default-page-setup", default_page_setup));
        }
        if let Some(ref embed_page_setup) = self.embed_page_setup {
            properties.push(("embed-page-setup", embed_page_setup));
        }
        if let Some(ref export_filename) = self.export_filename {
            properties.push(("export-filename", export_filename));
        }
        if let Some(ref has_selection) = self.has_selection {
            properties.push(("has-selection", has_selection));
        }
        if let Some(ref job_name) = self.job_name {
            properties.push(("job-name", job_name));
        }
        if let Some(ref n_pages) = self.n_pages {
            properties.push(("n-pages", n_pages));
        }
        if let Some(ref print_settings) = self.print_settings {
            properties.push(("print-settings", print_settings));
        }
        if let Some(ref show_progress) = self.show_progress {
            properties.push(("show-progress", show_progress));
        }
        if let Some(ref support_selection) = self.support_selection {
            properties.push(("support-selection", support_selection));
        }
        if let Some(ref track_print_status) = self.track_print_status {
            properties.push(("track-print-status", track_print_status));
        }
        if let Some(ref unit) = self.unit {
            properties.push(("unit", unit));
        }
        if let Some(ref use_full_page) = self.use_full_page {
            properties.push(("use-full-page", use_full_page));
        }
        glib::Object::new(PrintOperation::static_type(), &properties)
            .expect("object new")
            .downcast()
            .expect("downcast")
    }

    pub fn allow_async(mut self, allow_async: bool) -> Self {
        self.allow_async = Some(allow_async);
        self
    }

    pub fn current_page(mut self, current_page: i32) -> Self {
        self.current_page = Some(current_page);
        self
    }

    pub fn custom_tab_label(mut self, custom_tab_label: &str) -> Self {
        self.custom_tab_label = Some(custom_tab_label.to_string());
        self
    }

    pub fn default_page_setup(mut self, default_page_setup: &PageSetup) -> Self {
        self.default_page_setup = Some(default_page_setup.clone());
        self
    }

    pub fn embed_page_setup(mut self, embed_page_setup: bool) -> Self {
        self.embed_page_setup = Some(embed_page_setup);
        self
    }

    pub fn export_filename(mut self, export_filename: &str) -> Self {
        self.export_filename = Some(export_filename.to_string());
        self
    }

    pub fn has_selection(mut self, has_selection: bool) -> Self {
        self.has_selection = Some(has_selection);
        self
    }

    pub fn job_name(mut self, job_name: &str) -> Self {
        self.job_name = Some(job_name.to_string());
        self
    }

    pub fn n_pages(mut self, n_pages: i32) -> Self {
        self.n_pages = Some(n_pages);
        self
    }

    pub fn print_settings(mut self, print_settings: &PrintSettings) -> Self {
        self.print_settings = Some(print_settings.clone());
        self
    }

    pub fn show_progress(mut self, show_progress: bool) -> Self {
        self.show_progress = Some(show_progress);
        self
    }

    pub fn support_selection(mut self, support_selection: bool) -> Self {
        self.support_selection = Some(support_selection);
        self
    }

    pub fn track_print_status(mut self, track_print_status: bool) -> Self {
        self.track_print_status = Some(track_print_status);
        self
    }

    pub fn unit(mut self, unit: Unit) -> Self {
        self.unit = Some(unit);
        self
    }

    pub fn use_full_page(mut self, use_full_page: bool) -> Self {
        self.use_full_page = Some(use_full_page);
        self
    }
}

pub const NONE_PRINT_OPERATION: Option<&PrintOperation> = None;

pub trait PrintOperationExt: 'static {
    fn cancel(&self);

    fn draw_page_finish(&self);

    fn get_default_page_setup(&self) -> Option<PageSetup>;

    fn get_embed_page_setup(&self) -> bool;

    fn get_error(&self) -> Result<(), glib::Error>;

    fn get_has_selection(&self) -> bool;

    fn get_n_pages_to_print(&self) -> i32;

    fn get_print_settings(&self) -> Option<PrintSettings>;

    fn get_status(&self) -> PrintStatus;

    fn get_status_string(&self) -> Option<GString>;

    fn get_support_selection(&self) -> bool;

    fn is_finished(&self) -> bool;

    fn run<P: IsA<Window>>(
        &self,
        action: PrintOperationAction,
        parent: Option<&P>,
    ) -> Result<PrintOperationResult, glib::Error>;

    fn set_allow_async(&self, allow_async: bool);

    fn set_current_page(&self, current_page: i32);

    fn set_custom_tab_label(&self, label: Option<&str>);

    fn set_default_page_setup(&self, default_page_setup: Option<&PageSetup>);

    fn set_defer_drawing(&self);

    fn set_embed_page_setup(&self, embed: bool);

    fn set_export_filename<P: AsRef<std::path::Path>>(&self, filename: P);

    fn set_has_selection(&self, has_selection: bool);

    fn set_job_name(&self, job_name: &str);

    fn set_n_pages(&self, n_pages: i32);

    fn set_print_settings(&self, print_settings: Option<&PrintSettings>);

    fn set_show_progress(&self, show_progress: bool);

    fn set_support_selection(&self, support_selection: bool);

    fn set_track_print_status(&self, track_status: bool);

    fn set_unit(&self, unit: Unit);

    fn set_use_full_page(&self, full_page: bool);

    fn get_property_allow_async(&self) -> bool;

    fn get_property_current_page(&self) -> i32;

    fn get_property_custom_tab_label(&self) -> Option<GString>;

    fn get_property_export_filename(&self) -> Option<GString>;

    fn get_property_job_name(&self) -> Option<GString>;

    fn get_property_n_pages(&self) -> i32;

    fn get_property_show_progress(&self) -> bool;

    fn get_property_track_print_status(&self) -> bool;

    fn get_property_unit(&self) -> Unit;

    fn get_property_use_full_page(&self) -> bool;

    fn connect_begin_print<F: Fn(&Self, &PrintContext) + 'static>(&self, f: F) -> SignalHandlerId;

    fn connect_create_custom_widget<F: Fn(&Self) -> glib::Object + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId;

    fn connect_custom_widget_apply<F: Fn(&Self, &Widget) + 'static>(&self, f: F)
        -> SignalHandlerId;

    fn connect_done<F: Fn(&Self, PrintOperationResult) + 'static>(&self, f: F) -> SignalHandlerId;

    fn connect_draw_page<F: Fn(&Self, &PrintContext, i32) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId;

    fn connect_end_print<F: Fn(&Self, &PrintContext) + 'static>(&self, f: F) -> SignalHandlerId;

    fn connect_paginate<F: Fn(&Self, &PrintContext) -> bool + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId;

    fn connect_preview<
        F: Fn(&Self, &PrintOperationPreview, &PrintContext, Option<&Window>) -> bool + 'static,
    >(
        &self,
        f: F,
    ) -> SignalHandlerId;

    fn connect_request_page_setup<F: Fn(&Self, &PrintContext, i32, &PageSetup) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId;

    fn connect_status_changed<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    fn connect_update_custom_widget<F: Fn(&Self, &Widget, &PageSetup, &PrintSettings) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId;

    fn connect_property_allow_async_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    fn connect_property_current_page_notify<F: Fn(&Self) + 'static>(&self, f: F)
        -> SignalHandlerId;

    fn connect_property_custom_tab_label_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId;

    fn connect_property_default_page_setup_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId;

    fn connect_property_embed_page_setup_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId;

    fn connect_property_export_filename_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId;

    fn connect_property_has_selection_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId;

    fn connect_property_job_name_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    fn connect_property_n_pages_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    fn connect_property_n_pages_to_print_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId;

    fn connect_property_print_settings_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId;

    fn connect_property_show_progress_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId;

    fn connect_property_status_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    fn connect_property_status_string_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId;

    fn connect_property_support_selection_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId;

    fn connect_property_track_print_status_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId;

    fn connect_property_unit_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    fn connect_property_use_full_page_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId;
}

impl<O: IsA<PrintOperation>> PrintOperationExt for O {
    fn cancel(&self) {
        unsafe {
            gtk_sys::gtk_print_operation_cancel(self.as_ref().to_glib_none().0);
        }
    }

    fn draw_page_finish(&self) {
        unsafe {
            gtk_sys::gtk_print_operation_draw_page_finish(self.as_ref().to_glib_none().0);
        }
    }

    fn get_default_page_setup(&self) -> Option<PageSetup> {
        unsafe {
            from_glib_none(gtk_sys::gtk_print_operation_get_default_page_setup(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn get_embed_page_setup(&self) -> bool {
        unsafe {
            from_glib(gtk_sys::gtk_print_operation_get_embed_page_setup(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn get_error(&self) -> Result<(), glib::Error> {
        unsafe {
            let mut error = ptr::null_mut();
            let _ =
                gtk_sys::gtk_print_operation_get_error(self.as_ref().to_glib_none().0, &mut error);
            if error.is_null() {
                Ok(())
            } else {
                Err(from_glib_full(error))
            }
        }
    }

    fn get_has_selection(&self) -> bool {
        unsafe {
            from_glib(gtk_sys::gtk_print_operation_get_has_selection(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn get_n_pages_to_print(&self) -> i32 {
        unsafe { gtk_sys::gtk_print_operation_get_n_pages_to_print(self.as_ref().to_glib_none().0) }
    }

    fn get_print_settings(&self) -> Option<PrintSettings> {
        unsafe {
            from_glib_none(gtk_sys::gtk_print_operation_get_print_settings(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn get_status(&self) -> PrintStatus {
        unsafe {
            from_glib(gtk_sys::gtk_print_operation_get_status(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn get_status_string(&self) -> Option<GString> {
        unsafe {
            from_glib_none(gtk_sys::gtk_print_operation_get_status_string(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn get_support_selection(&self) -> bool {
        unsafe {
            from_glib(gtk_sys::gtk_print_operation_get_support_selection(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn is_finished(&self) -> bool {
        unsafe {
            from_glib(gtk_sys::gtk_print_operation_is_finished(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn run<P: IsA<Window>>(
        &self,
        action: PrintOperationAction,
        parent: Option<&P>,
    ) -> Result<PrintOperationResult, glib::Error> {
        unsafe {
            let mut error = ptr::null_mut();
            let ret = gtk_sys::gtk_print_operation_run(
                self.as_ref().to_glib_none().0,
                action.to_glib(),
                parent.map(|p| p.as_ref()).to_glib_none().0,
                &mut error,
            );
            if error.is_null() {
                Ok(from_glib(ret))
            } else {
                Err(from_glib_full(error))
            }
        }
    }

    fn set_allow_async(&self, allow_async: bool) {
        unsafe {
            gtk_sys::gtk_print_operation_set_allow_async(
                self.as_ref().to_glib_none().0,
                allow_async.to_glib(),
            );
        }
    }

    fn set_current_page(&self, current_page: i32) {
        unsafe {
            gtk_sys::gtk_print_operation_set_current_page(
                self.as_ref().to_glib_none().0,
                current_page,
            );
        }
    }

    fn set_custom_tab_label(&self, label: Option<&str>) {
        unsafe {
            gtk_sys::gtk_print_operation_set_custom_tab_label(
                self.as_ref().to_glib_none().0,
                label.to_glib_none().0,
            );
        }
    }

    fn set_default_page_setup(&self, default_page_setup: Option<&PageSetup>) {
        unsafe {
            gtk_sys::gtk_print_operation_set_default_page_setup(
                self.as_ref().to_glib_none().0,
                default_page_setup.to_glib_none().0,
            );
        }
    }

    fn set_defer_drawing(&self) {
        unsafe {
            gtk_sys::gtk_print_operation_set_defer_drawing(self.as_ref().to_glib_none().0);
        }
    }

    fn set_embed_page_setup(&self, embed: bool) {
        unsafe {
            gtk_sys::gtk_print_operation_set_embed_page_setup(
                self.as_ref().to_glib_none().0,
                embed.to_glib(),
            );
        }
    }

    fn set_export_filename<P: AsRef<std::path::Path>>(&self, filename: P) {
        unsafe {
            gtk_sys::gtk_print_operation_set_export_filename(
                self.as_ref().to_glib_none().0,
                filename.as_ref().to_glib_none().0,
            );
        }
    }

    fn set_has_selection(&self, has_selection: bool) {
        unsafe {
            gtk_sys::gtk_print_operation_set_has_selection(
                self.as_ref().to_glib_none().0,
                has_selection.to_glib(),
            );
        }
    }

    fn set_job_name(&self, job_name: &str) {
        unsafe {
            gtk_sys::gtk_print_operation_set_job_name(
                self.as_ref().to_glib_none().0,
                job_name.to_glib_none().0,
            );
        }
    }

    fn set_n_pages(&self, n_pages: i32) {
        unsafe {
            gtk_sys::gtk_print_operation_set_n_pages(self.as_ref().to_glib_none().0, n_pages);
        }
    }

    fn set_print_settings(&self, print_settings: Option<&PrintSettings>) {
        unsafe {
            gtk_sys::gtk_print_operation_set_print_settings(
                self.as_ref().to_glib_none().0,
                print_settings.to_glib_none().0,
            );
        }
    }

    fn set_show_progress(&self, show_progress: bool) {
        unsafe {
            gtk_sys::gtk_print_operation_set_show_progress(
                self.as_ref().to_glib_none().0,
                show_progress.to_glib(),
            );
        }
    }

    fn set_support_selection(&self, support_selection: bool) {
        unsafe {
            gtk_sys::gtk_print_operation_set_support_selection(
                self.as_ref().to_glib_none().0,
                support_selection.to_glib(),
            );
        }
    }

    fn set_track_print_status(&self, track_status: bool) {
        unsafe {
            gtk_sys::gtk_print_operation_set_track_print_status(
                self.as_ref().to_glib_none().0,
                track_status.to_glib(),
            );
        }
    }

    fn set_unit(&self, unit: Unit) {
        unsafe {
            gtk_sys::gtk_print_operation_set_unit(self.as_ref().to_glib_none().0, unit.to_glib());
        }
    }

    fn set_use_full_page(&self, full_page: bool) {
        unsafe {
            gtk_sys::gtk_print_operation_set_use_full_page(
                self.as_ref().to_glib_none().0,
                full_page.to_glib(),
            );
        }
    }

    fn get_property_allow_async(&self) -> bool {
        unsafe {
            let mut value = Value::from_type(<bool as StaticType>::static_type());
            gobject_sys::g_object_get_property(
                self.to_glib_none().0 as *mut gobject_sys::GObject,
                b"allow-async\0".as_ptr() as *const _,
                value.to_glib_none_mut().0,
            );
            value
                .get()
                .expect("Return Value for property `allow-async` getter")
                .unwrap()
        }
    }

    fn get_property_current_page(&self) -> i32 {
        unsafe {
            let mut value = Value::from_type(<i32 as StaticType>::static_type());
            gobject_sys::g_object_get_property(
                self.to_glib_none().0 as *mut gobject_sys::GObject,
                b"current-page\0".as_ptr() as *const _,
                value.to_glib_none_mut().0,
            );
            value
                .get()
                .expect("Return Value for property `current-page` getter")
                .unwrap()
        }
    }

    fn get_property_custom_tab_label(&self) -> Option<GString> {
        unsafe {
            let mut value = Value::from_type(<GString as StaticType>::static_type());
            gobject_sys::g_object_get_property(
                self.to_glib_none().0 as *mut gobject_sys::GObject,
                b"custom-tab-label\0".as_ptr() as *const _,
                value.to_glib_none_mut().0,
            );
            value
                .get()
                .expect("Return Value for property `custom-tab-label` getter")
        }
    }

    fn get_property_export_filename(&self) -> Option<GString> {
        unsafe {
            let mut value = Value::from_type(<GString as StaticType>::static_type());
            gobject_sys::g_object_get_property(
                self.to_glib_none().0 as *mut gobject_sys::GObject,
                b"export-filename\0".as_ptr() as *const _,
                value.to_glib_none_mut().0,
            );
            value
                .get()
                .expect("Return Value for property `export-filename` getter")
        }
    }

    fn get_property_job_name(&self) -> Option<GString> {
        unsafe {
            let mut value = Value::from_type(<GString as StaticType>::static_type());
            gobject_sys::g_object_get_property(
                self.to_glib_none().0 as *mut gobject_sys::GObject,
                b"job-name\0".as_ptr() as *const _,
                value.to_glib_none_mut().0,
            );
            value
                .get()
                .expect("Return Value for property `job-name` getter")
        }
    }

    fn get_property_n_pages(&self) -> i32 {
        unsafe {
            let mut value = Value::from_type(<i32 as StaticType>::static_type());
            gobject_sys::g_object_get_property(
                self.to_glib_none().0 as *mut gobject_sys::GObject,
                b"n-pages\0".as_ptr() as *const _,
                value.to_glib_none_mut().0,
            );
            value
                .get()
                .expect("Return Value for property `n-pages` getter")
                .unwrap()
        }
    }

    fn get_property_show_progress(&self) -> bool {
        unsafe {
            let mut value = Value::from_type(<bool as StaticType>::static_type());
            gobject_sys::g_object_get_property(
                self.to_glib_none().0 as *mut gobject_sys::GObject,
                b"show-progress\0".as_ptr() as *const _,
                value.to_glib_none_mut().0,
            );
            value
                .get()
                .expect("Return Value for property `show-progress` getter")
                .unwrap()
        }
    }

    fn get_property_track_print_status(&self) -> bool {
        unsafe {
            let mut value = Value::from_type(<bool as StaticType>::static_type());
            gobject_sys::g_object_get_property(
                self.to_glib_none().0 as *mut gobject_sys::GObject,
                b"track-print-status\0".as_ptr() as *const _,
                value.to_glib_none_mut().0,
            );
            value
                .get()
                .expect("Return Value for property `track-print-status` getter")
                .unwrap()
        }
    }

    fn get_property_unit(&self) -> Unit {
        unsafe {
            let mut value = Value::from_type(<Unit as StaticType>::static_type());
            gobject_sys::g_object_get_property(
                self.to_glib_none().0 as *mut gobject_sys::GObject,
                b"unit\0".as_ptr() as *const _,
                value.to_glib_none_mut().0,
            );
            value
                .get()
                .expect("Return Value for property `unit` getter")
                .unwrap()
        }
    }

    fn get_property_use_full_page(&self) -> bool {
        unsafe {
            let mut value = Value::from_type(<bool as StaticType>::static_type());
            gobject_sys::g_object_get_property(
                self.to_glib_none().0 as *mut gobject_sys::GObject,
                b"use-full-page\0".as_ptr() as *const _,
                value.to_glib_none_mut().0,
            );
            value
                .get()
                .expect("Return Value for property `use-full-page` getter")
                .unwrap()
        }
    }

    fn connect_begin_print<F: Fn(&Self, &PrintContext) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn begin_print_trampoline<P, F: Fn(&P, &PrintContext) + 'static>(
            this: *mut gtk_sys::GtkPrintOperation,
            context: *mut gtk_sys::GtkPrintContext,
            f: glib_sys::gpointer,
        ) where
            P: IsA<PrintOperation>,
        {
            let f: &F = &*(f as *const F);
            f(
                &PrintOperation::from_glib_borrow(this).unsafe_cast(),
                &from_glib_borrow(context),
            )
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"begin-print\0".as_ptr() as *const _,
                Some(transmute(begin_print_trampoline::<Self, F> as usize)),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_create_custom_widget<F: Fn(&Self) -> glib::Object + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn create_custom_widget_trampoline<
            P,
            F: Fn(&P) -> glib::Object + 'static,
        >(
            this: *mut gtk_sys::GtkPrintOperation,
            f: glib_sys::gpointer,
        ) -> *mut gobject_sys::GObject
        where
            P: IsA<PrintOperation>,
        {
            let f: &F = &*(f as *const F);
            f(&PrintOperation::from_glib_borrow(this).unsafe_cast()) /*Not checked*/
                .to_glib_none()
                .0
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"create-custom-widget\0".as_ptr() as *const _,
                Some(transmute(
                    create_custom_widget_trampoline::<Self, F> as usize,
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_custom_widget_apply<F: Fn(&Self, &Widget) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn custom_widget_apply_trampoline<P, F: Fn(&P, &Widget) + 'static>(
            this: *mut gtk_sys::GtkPrintOperation,
            widget: *mut gtk_sys::GtkWidget,
            f: glib_sys::gpointer,
        ) where
            P: IsA<PrintOperation>,
        {
            let f: &F = &*(f as *const F);
            f(
                &PrintOperation::from_glib_borrow(this).unsafe_cast(),
                &from_glib_borrow(widget),
            )
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"custom-widget-apply\0".as_ptr() as *const _,
                Some(transmute(
                    custom_widget_apply_trampoline::<Self, F> as usize,
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_done<F: Fn(&Self, PrintOperationResult) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn done_trampoline<P, F: Fn(&P, PrintOperationResult) + 'static>(
            this: *mut gtk_sys::GtkPrintOperation,
            result: gtk_sys::GtkPrintOperationResult,
            f: glib_sys::gpointer,
        ) where
            P: IsA<PrintOperation>,
        {
            let f: &F = &*(f as *const F);
            f(
                &PrintOperation::from_glib_borrow(this).unsafe_cast(),
                from_glib(result),
            )
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"done\0".as_ptr() as *const _,
                Some(transmute(done_trampoline::<Self, F> as usize)),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_draw_page<F: Fn(&Self, &PrintContext, i32) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn draw_page_trampoline<P, F: Fn(&P, &PrintContext, i32) + 'static>(
            this: *mut gtk_sys::GtkPrintOperation,
            context: *mut gtk_sys::GtkPrintContext,
            page_nr: libc::c_int,
            f: glib_sys::gpointer,
        ) where
            P: IsA<PrintOperation>,
        {
            let f: &F = &*(f as *const F);
            f(
                &PrintOperation::from_glib_borrow(this).unsafe_cast(),
                &from_glib_borrow(context),
                page_nr,
            )
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"draw-page\0".as_ptr() as *const _,
                Some(transmute(draw_page_trampoline::<Self, F> as usize)),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_end_print<F: Fn(&Self, &PrintContext) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn end_print_trampoline<P, F: Fn(&P, &PrintContext) + 'static>(
            this: *mut gtk_sys::GtkPrintOperation,
            context: *mut gtk_sys::GtkPrintContext,
            f: glib_sys::gpointer,
        ) where
            P: IsA<PrintOperation>,
        {
            let f: &F = &*(f as *const F);
            f(
                &PrintOperation::from_glib_borrow(this).unsafe_cast(),
                &from_glib_borrow(context),
            )
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"end-print\0".as_ptr() as *const _,
                Some(transmute(end_print_trampoline::<Self, F> as usize)),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_paginate<F: Fn(&Self, &PrintContext) -> bool + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn paginate_trampoline<P, F: Fn(&P, &PrintContext) -> bool + 'static>(
            this: *mut gtk_sys::GtkPrintOperation,
            context: *mut gtk_sys::GtkPrintContext,
            f: glib_sys::gpointer,
        ) -> glib_sys::gboolean
        where
            P: IsA<PrintOperation>,
        {
            let f: &F = &*(f as *const F);
            f(
                &PrintOperation::from_glib_borrow(this).unsafe_cast(),
                &from_glib_borrow(context),
            )
            .to_glib()
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"paginate\0".as_ptr() as *const _,
                Some(transmute(paginate_trampoline::<Self, F> as usize)),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_preview<
        F: Fn(&Self, &PrintOperationPreview, &PrintContext, Option<&Window>) -> bool + 'static,
    >(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn preview_trampoline<
            P,
            F: Fn(&P, &PrintOperationPreview, &PrintContext, Option<&Window>) -> bool + 'static,
        >(
            this: *mut gtk_sys::GtkPrintOperation,
            preview: *mut gtk_sys::GtkPrintOperationPreview,
            context: *mut gtk_sys::GtkPrintContext,
            parent: *mut gtk_sys::GtkWindow,
            f: glib_sys::gpointer,
        ) -> glib_sys::gboolean
        where
            P: IsA<PrintOperation>,
        {
            let f: &F = &*(f as *const F);
            f(
                &PrintOperation::from_glib_borrow(this).unsafe_cast(),
                &from_glib_borrow(preview),
                &from_glib_borrow(context),
                Option::<Window>::from_glib_borrow(parent).as_ref(),
            )
            .to_glib()
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"preview\0".as_ptr() as *const _,
                Some(transmute(preview_trampoline::<Self, F> as usize)),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_request_page_setup<F: Fn(&Self, &PrintContext, i32, &PageSetup) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn request_page_setup_trampoline<
            P,
            F: Fn(&P, &PrintContext, i32, &PageSetup) + 'static,
        >(
            this: *mut gtk_sys::GtkPrintOperation,
            context: *mut gtk_sys::GtkPrintContext,
            page_nr: libc::c_int,
            setup: *mut gtk_sys::GtkPageSetup,
            f: glib_sys::gpointer,
        ) where
            P: IsA<PrintOperation>,
        {
            let f: &F = &*(f as *const F);
            f(
                &PrintOperation::from_glib_borrow(this).unsafe_cast(),
                &from_glib_borrow(context),
                page_nr,
                &from_glib_borrow(setup),
            )
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"request-page-setup\0".as_ptr() as *const _,
                Some(transmute(request_page_setup_trampoline::<Self, F> as usize)),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_status_changed<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn status_changed_trampoline<P, F: Fn(&P) + 'static>(
            this: *mut gtk_sys::GtkPrintOperation,
            f: glib_sys::gpointer,
        ) where
            P: IsA<PrintOperation>,
        {
            let f: &F = &*(f as *const F);
            f(&PrintOperation::from_glib_borrow(this).unsafe_cast())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"status-changed\0".as_ptr() as *const _,
                Some(transmute(status_changed_trampoline::<Self, F> as usize)),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_update_custom_widget<F: Fn(&Self, &Widget, &PageSetup, &PrintSettings) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn update_custom_widget_trampoline<
            P,
            F: Fn(&P, &Widget, &PageSetup, &PrintSettings) + 'static,
        >(
            this: *mut gtk_sys::GtkPrintOperation,
            widget: *mut gtk_sys::GtkWidget,
            setup: *mut gtk_sys::GtkPageSetup,
            settings: *mut gtk_sys::GtkPrintSettings,
            f: glib_sys::gpointer,
        ) where
            P: IsA<PrintOperation>,
        {
            let f: &F = &*(f as *const F);
            f(
                &PrintOperation::from_glib_borrow(this).unsafe_cast(),
                &from_glib_borrow(widget),
                &from_glib_borrow(setup),
                &from_glib_borrow(settings),
            )
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"update-custom-widget\0".as_ptr() as *const _,
                Some(transmute(
                    update_custom_widget_trampoline::<Self, F> as usize,
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_property_allow_async_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_allow_async_trampoline<P, F: Fn(&P) + 'static>(
            this: *mut gtk_sys::GtkPrintOperation,
            _param_spec: glib_sys::gpointer,
            f: glib_sys::gpointer,
        ) where
            P: IsA<PrintOperation>,
        {
            let f: &F = &*(f as *const F);
            f(&PrintOperation::from_glib_borrow(this).unsafe_cast())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::allow-async\0".as_ptr() as *const _,
                Some(transmute(notify_allow_async_trampoline::<Self, F> as usize)),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_property_current_page_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_current_page_trampoline<P, F: Fn(&P) + 'static>(
            this: *mut gtk_sys::GtkPrintOperation,
            _param_spec: glib_sys::gpointer,
            f: glib_sys::gpointer,
        ) where
            P: IsA<PrintOperation>,
        {
            let f: &F = &*(f as *const F);
            f(&PrintOperation::from_glib_borrow(this).unsafe_cast())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::current-page\0".as_ptr() as *const _,
                Some(transmute(
                    notify_current_page_trampoline::<Self, F> as usize,
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_property_custom_tab_label_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_custom_tab_label_trampoline<P, F: Fn(&P) + 'static>(
            this: *mut gtk_sys::GtkPrintOperation,
            _param_spec: glib_sys::gpointer,
            f: glib_sys::gpointer,
        ) where
            P: IsA<PrintOperation>,
        {
            let f: &F = &*(f as *const F);
            f(&PrintOperation::from_glib_borrow(this).unsafe_cast())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::custom-tab-label\0".as_ptr() as *const _,
                Some(transmute(
                    notify_custom_tab_label_trampoline::<Self, F> as usize,
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_property_default_page_setup_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_default_page_setup_trampoline<P, F: Fn(&P) + 'static>(
            this: *mut gtk_sys::GtkPrintOperation,
            _param_spec: glib_sys::gpointer,
            f: glib_sys::gpointer,
        ) where
            P: IsA<PrintOperation>,
        {
            let f: &F = &*(f as *const F);
            f(&PrintOperation::from_glib_borrow(this).unsafe_cast())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::default-page-setup\0".as_ptr() as *const _,
                Some(transmute(
                    notify_default_page_setup_trampoline::<Self, F> as usize,
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_property_embed_page_setup_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_embed_page_setup_trampoline<P, F: Fn(&P) + 'static>(
            this: *mut gtk_sys::GtkPrintOperation,
            _param_spec: glib_sys::gpointer,
            f: glib_sys::gpointer,
        ) where
            P: IsA<PrintOperation>,
        {
            let f: &F = &*(f as *const F);
            f(&PrintOperation::from_glib_borrow(this).unsafe_cast())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::embed-page-setup\0".as_ptr() as *const _,
                Some(transmute(
                    notify_embed_page_setup_trampoline::<Self, F> as usize,
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_property_export_filename_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_export_filename_trampoline<P, F: Fn(&P) + 'static>(
            this: *mut gtk_sys::GtkPrintOperation,
            _param_spec: glib_sys::gpointer,
            f: glib_sys::gpointer,
        ) where
            P: IsA<PrintOperation>,
        {
            let f: &F = &*(f as *const F);
            f(&PrintOperation::from_glib_borrow(this).unsafe_cast())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::export-filename\0".as_ptr() as *const _,
                Some(transmute(
                    notify_export_filename_trampoline::<Self, F> as usize,
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_property_has_selection_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_has_selection_trampoline<P, F: Fn(&P) + 'static>(
            this: *mut gtk_sys::GtkPrintOperation,
            _param_spec: glib_sys::gpointer,
            f: glib_sys::gpointer,
        ) where
            P: IsA<PrintOperation>,
        {
            let f: &F = &*(f as *const F);
            f(&PrintOperation::from_glib_borrow(this).unsafe_cast())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::has-selection\0".as_ptr() as *const _,
                Some(transmute(
                    notify_has_selection_trampoline::<Self, F> as usize,
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_property_job_name_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_job_name_trampoline<P, F: Fn(&P) + 'static>(
            this: *mut gtk_sys::GtkPrintOperation,
            _param_spec: glib_sys::gpointer,
            f: glib_sys::gpointer,
        ) where
            P: IsA<PrintOperation>,
        {
            let f: &F = &*(f as *const F);
            f(&PrintOperation::from_glib_borrow(this).unsafe_cast())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::job-name\0".as_ptr() as *const _,
                Some(transmute(notify_job_name_trampoline::<Self, F> as usize)),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_property_n_pages_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_n_pages_trampoline<P, F: Fn(&P) + 'static>(
            this: *mut gtk_sys::GtkPrintOperation,
            _param_spec: glib_sys::gpointer,
            f: glib_sys::gpointer,
        ) where
            P: IsA<PrintOperation>,
        {
            let f: &F = &*(f as *const F);
            f(&PrintOperation::from_glib_borrow(this).unsafe_cast())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::n-pages\0".as_ptr() as *const _,
                Some(transmute(notify_n_pages_trampoline::<Self, F> as usize)),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_property_n_pages_to_print_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_n_pages_to_print_trampoline<P, F: Fn(&P) + 'static>(
            this: *mut gtk_sys::GtkPrintOperation,
            _param_spec: glib_sys::gpointer,
            f: glib_sys::gpointer,
        ) where
            P: IsA<PrintOperation>,
        {
            let f: &F = &*(f as *const F);
            f(&PrintOperation::from_glib_borrow(this).unsafe_cast())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::n-pages-to-print\0".as_ptr() as *const _,
                Some(transmute(
                    notify_n_pages_to_print_trampoline::<Self, F> as usize,
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_property_print_settings_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_print_settings_trampoline<P, F: Fn(&P) + 'static>(
            this: *mut gtk_sys::GtkPrintOperation,
            _param_spec: glib_sys::gpointer,
            f: glib_sys::gpointer,
        ) where
            P: IsA<PrintOperation>,
        {
            let f: &F = &*(f as *const F);
            f(&PrintOperation::from_glib_borrow(this).unsafe_cast())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::print-settings\0".as_ptr() as *const _,
                Some(transmute(
                    notify_print_settings_trampoline::<Self, F> as usize,
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_property_show_progress_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_show_progress_trampoline<P, F: Fn(&P) + 'static>(
            this: *mut gtk_sys::GtkPrintOperation,
            _param_spec: glib_sys::gpointer,
            f: glib_sys::gpointer,
        ) where
            P: IsA<PrintOperation>,
        {
            let f: &F = &*(f as *const F);
            f(&PrintOperation::from_glib_borrow(this).unsafe_cast())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::show-progress\0".as_ptr() as *const _,
                Some(transmute(
                    notify_show_progress_trampoline::<Self, F> as usize,
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_property_status_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_status_trampoline<P, F: Fn(&P) + 'static>(
            this: *mut gtk_sys::GtkPrintOperation,
            _param_spec: glib_sys::gpointer,
            f: glib_sys::gpointer,
        ) where
            P: IsA<PrintOperation>,
        {
            let f: &F = &*(f as *const F);
            f(&PrintOperation::from_glib_borrow(this).unsafe_cast())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::status\0".as_ptr() as *const _,
                Some(transmute(notify_status_trampoline::<Self, F> as usize)),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_property_status_string_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_status_string_trampoline<P, F: Fn(&P) + 'static>(
            this: *mut gtk_sys::GtkPrintOperation,
            _param_spec: glib_sys::gpointer,
            f: glib_sys::gpointer,
        ) where
            P: IsA<PrintOperation>,
        {
            let f: &F = &*(f as *const F);
            f(&PrintOperation::from_glib_borrow(this).unsafe_cast())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::status-string\0".as_ptr() as *const _,
                Some(transmute(
                    notify_status_string_trampoline::<Self, F> as usize,
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_property_support_selection_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_support_selection_trampoline<P, F: Fn(&P) + 'static>(
            this: *mut gtk_sys::GtkPrintOperation,
            _param_spec: glib_sys::gpointer,
            f: glib_sys::gpointer,
        ) where
            P: IsA<PrintOperation>,
        {
            let f: &F = &*(f as *const F);
            f(&PrintOperation::from_glib_borrow(this).unsafe_cast())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::support-selection\0".as_ptr() as *const _,
                Some(transmute(
                    notify_support_selection_trampoline::<Self, F> as usize,
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_property_track_print_status_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_track_print_status_trampoline<P, F: Fn(&P) + 'static>(
            this: *mut gtk_sys::GtkPrintOperation,
            _param_spec: glib_sys::gpointer,
            f: glib_sys::gpointer,
        ) where
            P: IsA<PrintOperation>,
        {
            let f: &F = &*(f as *const F);
            f(&PrintOperation::from_glib_borrow(this).unsafe_cast())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::track-print-status\0".as_ptr() as *const _,
                Some(transmute(
                    notify_track_print_status_trampoline::<Self, F> as usize,
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_property_unit_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_unit_trampoline<P, F: Fn(&P) + 'static>(
            this: *mut gtk_sys::GtkPrintOperation,
            _param_spec: glib_sys::gpointer,
            f: glib_sys::gpointer,
        ) where
            P: IsA<PrintOperation>,
        {
            let f: &F = &*(f as *const F);
            f(&PrintOperation::from_glib_borrow(this).unsafe_cast())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::unit\0".as_ptr() as *const _,
                Some(transmute(notify_unit_trampoline::<Self, F> as usize)),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_property_use_full_page_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_use_full_page_trampoline<P, F: Fn(&P) + 'static>(
            this: *mut gtk_sys::GtkPrintOperation,
            _param_spec: glib_sys::gpointer,
            f: glib_sys::gpointer,
        ) where
            P: IsA<PrintOperation>,
        {
            let f: &F = &*(f as *const F);
            f(&PrintOperation::from_glib_borrow(this).unsafe_cast())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::use-full-page\0".as_ptr() as *const _,
                Some(transmute(
                    notify_use_full_page_trampoline::<Self, F> as usize,
                )),
                Box_::into_raw(f),
            )
        }
    }
}

impl fmt::Display for PrintOperation {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        write!(f, "PrintOperation")
    }
}