gtk4/auto/

picture.rs

// 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
#![allow(deprecated)]

#[cfg(feature = "v4_8")]
#[cfg_attr(docsrs, doc(cfg(feature = "v4_8")))]
use crate::ContentFit;
use crate::{
    ffi, Accessible, AccessibleRole, Align, Buildable, ConstraintTarget, LayoutManager, Overflow,
    Widget,
};
use glib::{
    prelude::*,
    signal::{connect_raw, SignalHandlerId},
    translate::*,
};
use std::boxed::Box as Box_;

glib::wrapper! {
    /// Displays a [`gdk::Paintable`][crate::gdk::Paintable].
    ///
    /// picture>
    ///   <source srcset="picture-dark.png" media="(prefers-color-scheme: dark)">
    ///   <img alt="An example GtkPicture" src="picture.png">
    /// </picture>
    ///
    /// Many convenience functions are provided to make pictures simple to use.
    /// For example, if you want to load an image from a file, and then display
    /// it, there’s a convenience function to do this:
    ///
    /// **⚠️ The following code is in c ⚠️**
    ///
    /// ```c
    /// GtkWidget *widget = gtk_picture_new_for_filename ("myfile.png");
    /// ```
    ///
    /// If the file isn’t loaded successfully, the picture will contain a
    /// “broken image” icon similar to that used in many web browsers.
    /// If you want to handle errors in loading the file yourself,
    /// for example by displaying an error message, then load the image with
    /// [`gdk::Texture::from_file()`][crate::gdk::Texture::from_file()], then create the [`Picture`][crate::Picture] with
    /// [`for_paintable()`][Self::for_paintable()].
    ///
    /// Sometimes an application will want to avoid depending on external data
    /// files, such as image files. See the documentation of `GResource` for details.
    /// In this case, [`for_resource()`][Self::for_resource()] and
    /// [`set_resource()`][Self::set_resource()] should be used.
    ///
    /// [`Picture`][crate::Picture] displays an image at its natural size. See [`Image`][crate::Image]
    /// if you want to display a fixed-size image, such as an icon.
    ///
    /// ## Sizing the paintable
    ///
    /// You can influence how the paintable is displayed inside the [`Picture`][crate::Picture]
    /// by changing [`content-fit`][struct@crate::Picture#content-fit]. See [`ContentFit`][crate::ContentFit]
    /// for details. [`can-shrink`][struct@crate::Picture#can-shrink] can be unset to make sure
    /// that paintables are never made smaller than their ideal size - but
    /// be careful if you do not know the size of the paintable in use (like
    /// when displaying user-loaded images). This can easily cause the picture to
    /// grow larger than the screen. And [`halign`][struct@crate::Widget#halign] and
    /// [`valign`][struct@crate::Widget#valign] can be used to make sure the paintable doesn't
    /// fill all available space but is instead displayed at its original size.
    ///
    /// ## CSS nodes
    ///
    /// [`Picture`][crate::Picture] has a single CSS node with the name `picture`.
    ///
    /// ## Accessibility
    ///
    /// [`Picture`][crate::Picture] uses the [enum@Gtk.AccessibleRole.img] role.
    ///
    /// ## Properties
    ///
    ///
    /// #### `alternative-text`
    ///  The alternative textual description for the picture.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `can-shrink`
    ///  If the [`Picture`][crate::Picture] can be made smaller than the natural size of its contents.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `content-fit`
    ///  How the content should be resized to fit inside the [`Picture`][crate::Picture].
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `file`
    ///  The `GFile` that is displayed or [`None`] if none.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `keep-aspect-ratio`
    ///  Whether the GtkPicture will render its contents trying to preserve the aspect
    /// ratio.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `paintable`
    ///  The [`gdk::Paintable`][crate::gdk::Paintable] to be displayed by this [`Picture`][crate::Picture].
    ///
    /// Readable | Writeable
    /// <details><summary><h4>Widget</h4></summary>
    ///
    ///
    /// #### `can-focus`
    ///  Whether the widget or any of its descendents can accept
    /// the input focus.
    ///
    /// This property is meant to be set by widget implementations,
    /// typically in their instance init function.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `can-target`
    ///  Whether the widget can receive pointer events.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `css-classes`
    ///  A list of css classes applied to this widget.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `css-name`
    ///  The name of this widget in the CSS tree.
    ///
    /// This property is meant to be set by widget implementations,
    /// typically in their instance init function.
    ///
    /// Readable | Writeable | Construct Only
    ///
    ///
    /// #### `cursor`
    ///  The cursor used by @widget.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `focus-on-click`
    ///  Whether the widget should grab focus when it is clicked with the mouse.
    ///
    /// This property is only relevant for widgets that can take focus.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `focusable`
    ///  Whether this widget itself will accept the input focus.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `halign`
    ///  How to distribute horizontal space if widget gets extra space.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `has-default`
    ///  Whether the widget is the default widget.
    ///
    /// Readable
    ///
    ///
    /// #### `has-focus`
    ///  Whether the widget has the input focus.
    ///
    /// Readable
    ///
    ///
    /// #### `has-tooltip`
    ///  Enables or disables the emission of the [`query-tooltip`][struct@crate::Widget#query-tooltip]
    /// signal on @widget.
    ///
    /// A true value indicates that @widget can have a tooltip, in this case
    /// the widget will be queried using [`query-tooltip`][struct@crate::Widget#query-tooltip] to
    /// determine whether it will provide a tooltip or not.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `height-request`
    ///  Overrides for height request of the widget.
    ///
    /// If this is -1, the natural request will be used.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `hexpand`
    ///  Whether to expand horizontally.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `hexpand-set`
    ///  Whether to use the `hexpand` property.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `layout-manager`
    ///  The [`LayoutManager`][crate::LayoutManager] instance to use to compute
    /// the preferred size of the widget, and allocate its children.
    ///
    /// This property is meant to be set by widget implementations,
    /// typically in their instance init function.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `limit-events`
    ///  Makes this widget act like a modal dialog, with respect to
    /// event delivery.
    ///
    /// Global event controllers will not handle events with targets
    /// inside the widget, unless they are set up to ignore propagation
    /// limits. See [`EventControllerExt::set_propagation_limit()`][crate::prelude::EventControllerExt::set_propagation_limit()].
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `margin-bottom`
    ///  Margin on bottom side of widget.
    ///
    /// This property adds margin outside of the widget's normal size
    /// request, the margin will be added in addition to the size from
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `margin-end`
    ///  Margin on end of widget, horizontally.
    ///
    /// This property supports left-to-right and right-to-left text
    /// directions.
    ///
    /// This property adds margin outside of the widget's normal size
    /// request, the margin will be added in addition to the size from
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `margin-start`
    ///  Margin on start of widget, horizontally.
    ///
    /// This property supports left-to-right and right-to-left text
    /// directions.
    ///
    /// This property adds margin outside of the widget's normal size
    /// request, the margin will be added in addition to the size from
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `margin-top`
    ///  Margin on top side of widget.
    ///
    /// This property adds margin outside of the widget's normal size
    /// request, the margin will be added in addition to the size from
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `name`
    ///  The name of the widget.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `opacity`
    ///  The requested opacity of the widget.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `overflow`
    ///  How content outside the widget's content area is treated.
    ///
    /// This property is meant to be set by widget implementations,
    /// typically in their instance init function.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `parent`
    ///  The parent widget of this widget.
    ///
    /// Readable
    ///
    ///
    /// #### `receives-default`
    ///  Whether the widget will receive the default action when it is focused.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `root`
    ///  The [`Root`][crate::Root] widget of the widget tree containing this widget.
    ///
    /// This will be `NULL` if the widget is not contained in a root widget.
    ///
    /// Readable
    ///
    ///
    /// #### `scale-factor`
    ///  The scale factor of the widget.
    ///
    /// Readable
    ///
    ///
    /// #### `sensitive`
    ///  Whether the widget responds to input.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `tooltip-markup`
    ///  Sets the text of tooltip to be the given string, which is marked up
    /// with Pango markup.
    ///
    /// Also see [`Tooltip::set_markup()`][crate::Tooltip::set_markup()].
    ///
    /// This is a convenience property which will take care of getting the
    /// tooltip shown if the given string is not `NULL`:
    /// [`has-tooltip`][struct@crate::Widget#has-tooltip] will automatically be set to true
    /// and there will be taken care of [`query-tooltip`][struct@crate::Widget#query-tooltip] in
    /// the default signal handler.
    ///
    /// Note that if both [`tooltip-text`][struct@crate::Widget#tooltip-text] and
    /// [`tooltip-markup`][struct@crate::Widget#tooltip-markup] are set, the last one wins.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `tooltip-text`
    ///  Sets the text of tooltip to be the given string.
    ///
    /// Also see [`Tooltip::set_text()`][crate::Tooltip::set_text()].
    ///
    /// This is a convenience property which will take care of getting the
    /// tooltip shown if the given string is not `NULL`:
    /// [`has-tooltip`][struct@crate::Widget#has-tooltip] will automatically be set to true
    /// and there will be taken care of [`query-tooltip`][struct@crate::Widget#query-tooltip] in
    /// the default signal handler.
    ///
    /// Note that if both [`tooltip-text`][struct@crate::Widget#tooltip-text] and
    /// [`tooltip-markup`][struct@crate::Widget#tooltip-markup] are set, the last one wins.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `valign`
    ///  How to distribute vertical space if widget gets extra space.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `vexpand`
    ///  Whether to expand vertically.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `vexpand-set`
    ///  Whether to use the `vexpand` property.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `visible`
    ///  Whether the widget is visible.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `width-request`
    ///  Overrides for width request of the widget.
    ///
    /// If this is -1, the natural request will be used.
    ///
    /// Readable | Writeable
    /// </details>
    /// <details><summary><h4>Accessible</h4></summary>
    ///
    ///
    /// #### `accessible-role`
    ///  The accessible role of the given [`Accessible`][crate::Accessible] implementation.
    ///
    /// The accessible role cannot be changed once set.
    ///
    /// Readable | Writeable
    /// </details>
    ///
    /// # Implements
    ///
    /// [`WidgetExt`][trait@crate::prelude::WidgetExt], [`trait@glib::ObjectExt`], [`AccessibleExt`][trait@crate::prelude::AccessibleExt], [`BuildableExt`][trait@crate::prelude::BuildableExt], [`ConstraintTargetExt`][trait@crate::prelude::ConstraintTargetExt], [`WidgetExtManual`][trait@crate::prelude::WidgetExtManual], [`AccessibleExtManual`][trait@crate::prelude::AccessibleExtManual]
    #[doc(alias = "GtkPicture")]
    pub struct Picture(Object<ffi::GtkPicture, ffi::GtkPictureClass>) @extends Widget, @implements Accessible, Buildable, ConstraintTarget;

    match fn {
        type_ => || ffi::gtk_picture_get_type(),
    }
}

impl Picture {
    /// Creates a new empty [`Picture`][crate::Picture] widget.
    ///
    /// # Returns
    ///
    /// a newly created [`Picture`][crate::Picture] widget.
    #[doc(alias = "gtk_picture_new")]
    pub fn new() -> Picture {
        assert_initialized_main_thread!();
        unsafe { Widget::from_glib_none(ffi::gtk_picture_new()).unsafe_cast() }
    }

    /// Creates a new [`Picture`][crate::Picture] displaying the given @file.
    ///
    /// If the file isn’t found or can’t be loaded, the resulting
    /// [`Picture`][crate::Picture] is empty.
    ///
    /// If you need to detect failures to load the file, use
    /// [`gdk::Texture::from_file()`][crate::gdk::Texture::from_file()] to load the file yourself,
    /// then create the [`Picture`][crate::Picture] from the texture.
    /// ## `file`
    /// a `GFile`
    ///
    /// # Returns
    ///
    /// a new [`Picture`][crate::Picture]
    #[doc(alias = "gtk_picture_new_for_file")]
    #[doc(alias = "new_for_file")]
    pub fn for_file(file: &impl IsA<gio::File>) -> Picture {
        assert_initialized_main_thread!();
        unsafe {
            Widget::from_glib_none(ffi::gtk_picture_new_for_file(
                file.as_ref().to_glib_none().0,
            ))
            .unsafe_cast()
        }
    }

    /// Creates a new [`Picture`][crate::Picture] displaying the file @filename.
    ///
    /// This is a utility function that calls [`for_file()`][Self::for_file()].
    /// See that function for details.
    /// ## `filename`
    /// a filename
    ///
    /// # Returns
    ///
    /// a new [`Picture`][crate::Picture]
    #[doc(alias = "gtk_picture_new_for_filename")]
    #[doc(alias = "new_for_filename")]
    pub fn for_filename(filename: impl AsRef<std::path::Path>) -> Picture {
        assert_initialized_main_thread!();
        unsafe {
            Widget::from_glib_none(ffi::gtk_picture_new_for_filename(
                filename.as_ref().to_glib_none().0,
            ))
            .unsafe_cast()
        }
    }

    /// Creates a new [`Picture`][crate::Picture] displaying @paintable.
    ///
    /// The [`Picture`][crate::Picture] will track changes to the @paintable and update
    /// its size and contents in response to it.
    /// ## `paintable`
    /// a [`gdk::Paintable`][crate::gdk::Paintable]
    ///
    /// # Returns
    ///
    /// a new [`Picture`][crate::Picture]
    #[doc(alias = "gtk_picture_new_for_paintable")]
    #[doc(alias = "new_for_paintable")]
    pub fn for_paintable(paintable: &impl IsA<gdk::Paintable>) -> Picture {
        assert_initialized_main_thread!();
        unsafe {
            Widget::from_glib_none(ffi::gtk_picture_new_for_paintable(
                paintable.as_ref().to_glib_none().0,
            ))
            .unsafe_cast()
        }
    }

    /// Creates a new [`Picture`][crate::Picture] displaying @pixbuf.
    ///
    /// This is a utility function that calls [`for_paintable()`][Self::for_paintable()],
    /// See that function for details.
    ///
    /// The pixbuf must not be modified after passing it to this function.
    ///
    /// # Deprecated since 4.12
    ///
    /// Use [`for_paintable()`][Self::for_paintable()] and
    ///   [`gdk::Texture::for_pixbuf()`][crate::gdk::Texture::for_pixbuf()] instead
    /// ## `pixbuf`
    /// a [`gdk_pixbuf::Pixbuf`][crate::gdk_pixbuf::Pixbuf]
    ///
    /// # Returns
    ///
    /// a new [`Picture`][crate::Picture]
    #[cfg_attr(feature = "v4_12", deprecated = "Since 4.12")]
    #[allow(deprecated)]
    #[doc(alias = "gtk_picture_new_for_pixbuf")]
    #[doc(alias = "new_for_pixbuf")]
    pub fn for_pixbuf(pixbuf: &gdk_pixbuf::Pixbuf) -> Picture {
        assert_initialized_main_thread!();
        unsafe {
            Widget::from_glib_none(ffi::gtk_picture_new_for_pixbuf(pixbuf.to_glib_none().0))
                .unsafe_cast()
        }
    }

    /// Creates a new [`Picture`][crate::Picture] displaying the resource at @resource_path.
    ///
    /// This is a utility function that calls [`for_file()`][Self::for_file()].
    /// See that function for details.
    /// ## `resource_path`
    /// resource path to play back
    ///
    /// # Returns
    ///
    /// a new [`Picture`][crate::Picture]
    #[doc(alias = "gtk_picture_new_for_resource")]
    #[doc(alias = "new_for_resource")]
    pub fn for_resource(resource_path: &str) -> Picture {
        assert_initialized_main_thread!();
        unsafe {
            Widget::from_glib_none(ffi::gtk_picture_new_for_resource(
                resource_path.to_glib_none().0,
            ))
            .unsafe_cast()
        }
    }

    // rustdoc-stripper-ignore-next
    /// Creates a new builder-pattern struct instance to construct [`Picture`] objects.
    ///
    /// This method returns an instance of [`PictureBuilder`](crate::builders::PictureBuilder) which can be used to create [`Picture`] objects.
    pub fn builder() -> PictureBuilder {
        PictureBuilder::new()
    }

    /// Gets the alternative textual description of the picture.
    ///
    /// The returned string will be [`None`] if the picture cannot be described textually.
    ///
    /// # Returns
    ///
    /// the alternative textual description of @self.
    #[doc(alias = "gtk_picture_get_alternative_text")]
    #[doc(alias = "get_alternative_text")]
    #[doc(alias = "alternative-text")]
    pub fn alternative_text(&self) -> Option<glib::GString> {
        unsafe { from_glib_none(ffi::gtk_picture_get_alternative_text(self.to_glib_none().0)) }
    }

    /// Returns whether the [`Picture`][crate::Picture] respects its contents size.
    ///
    /// # Returns
    ///
    /// [`true`] if the picture can be made smaller than its contents
    #[doc(alias = "gtk_picture_get_can_shrink")]
    #[doc(alias = "get_can_shrink")]
    #[doc(alias = "can-shrink")]
    pub fn can_shrink(&self) -> bool {
        unsafe { from_glib(ffi::gtk_picture_get_can_shrink(self.to_glib_none().0)) }
    }

    /// Returns the fit mode for the content of the [`Picture`][crate::Picture].
    ///
    /// See [`ContentFit`][crate::ContentFit] for details.
    ///
    /// # Returns
    ///
    /// the content fit mode
    #[cfg(feature = "v4_8")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v4_8")))]
    #[doc(alias = "gtk_picture_get_content_fit")]
    #[doc(alias = "get_content_fit")]
    #[doc(alias = "content-fit")]
    pub fn content_fit(&self) -> ContentFit {
        unsafe { from_glib(ffi::gtk_picture_get_content_fit(self.to_glib_none().0)) }
    }

    /// Gets the `GFile` currently displayed if @self is displaying a file.
    ///
    /// If @self is not displaying a file, for example when
    /// [`set_paintable()`][Self::set_paintable()] was used, then [`None`] is returned.
    ///
    /// # Returns
    ///
    /// The `GFile` displayed by @self.
    #[doc(alias = "gtk_picture_get_file")]
    #[doc(alias = "get_file")]
    pub fn file(&self) -> Option<gio::File> {
        unsafe { from_glib_none(ffi::gtk_picture_get_file(self.to_glib_none().0)) }
    }

    /// Returns whether the [`Picture`][crate::Picture] preserves its contents aspect ratio.
    ///
    /// # Deprecated since 4.8
    ///
    /// Use [`content_fit()`][Self::content_fit()] instead. This will
    ///   now return `FALSE` only if [`content-fit`][struct@crate::Picture#content-fit] is
    ///   `GTK_CONTENT_FIT_FILL`. Returns `TRUE` otherwise.
    ///
    /// # Returns
    ///
    /// [`true`] if the self tries to keep the contents' aspect ratio
    #[cfg_attr(feature = "v4_8", deprecated = "Since 4.8")]
    #[allow(deprecated)]
    #[doc(alias = "gtk_picture_get_keep_aspect_ratio")]
    #[doc(alias = "get_keep_aspect_ratio")]
    #[doc(alias = "keep-aspect-ratio")]
    pub fn is_keep_aspect_ratio(&self) -> bool {
        unsafe {
            from_glib(ffi::gtk_picture_get_keep_aspect_ratio(
                self.to_glib_none().0,
            ))
        }
    }

    /// Gets the [`gdk::Paintable`][crate::gdk::Paintable] being displayed by the [`Picture`][crate::Picture].
    ///
    /// # Returns
    ///
    /// the displayed paintable
    #[doc(alias = "gtk_picture_get_paintable")]
    #[doc(alias = "get_paintable")]
    pub fn paintable(&self) -> Option<gdk::Paintable> {
        unsafe { from_glib_none(ffi::gtk_picture_get_paintable(self.to_glib_none().0)) }
    }

    /// Sets an alternative textual description for the picture contents.
    ///
    /// It is equivalent to the "alt" attribute for images on websites.
    ///
    /// This text will be made available to accessibility tools.
    ///
    /// If the picture cannot be described textually, set this property to [`None`].
    /// ## `alternative_text`
    /// a textual description of the contents
    #[doc(alias = "gtk_picture_set_alternative_text")]
    #[doc(alias = "alternative-text")]
    pub fn set_alternative_text(&self, alternative_text: Option<&str>) {
        unsafe {
            ffi::gtk_picture_set_alternative_text(
                self.to_glib_none().0,
                alternative_text.to_glib_none().0,
            );
        }
    }

    /// If set to [`true`], the @self can be made smaller than its contents.
    ///
    /// The contents will then be scaled down when rendering.
    ///
    /// If you want to still force a minimum size manually, consider using
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()].
    ///
    /// Also of note is that a similar function for growing does not exist
    /// because the grow behavior can be controlled via
    /// [`WidgetExt::set_halign()`][crate::prelude::WidgetExt::set_halign()] and [`WidgetExt::set_valign()`][crate::prelude::WidgetExt::set_valign()].
    /// ## `can_shrink`
    /// if @self can be made smaller than its contents
    #[doc(alias = "gtk_picture_set_can_shrink")]
    #[doc(alias = "can-shrink")]
    pub fn set_can_shrink(&self, can_shrink: bool) {
        unsafe {
            ffi::gtk_picture_set_can_shrink(self.to_glib_none().0, can_shrink.into_glib());
        }
    }

    /// Sets how the content should be resized to fit the [`Picture`][crate::Picture].
    ///
    /// See [`ContentFit`][crate::ContentFit] for details.
    /// ## `content_fit`
    /// the content fit mode
    #[cfg(feature = "v4_8")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v4_8")))]
    #[doc(alias = "gtk_picture_set_content_fit")]
    #[doc(alias = "content-fit")]
    pub fn set_content_fit(&self, content_fit: ContentFit) {
        unsafe {
            ffi::gtk_picture_set_content_fit(self.to_glib_none().0, content_fit.into_glib());
        }
    }

    /// Makes @self load and display @file.
    ///
    /// See [`for_file()`][Self::for_file()] for details.
    /// ## `file`
    /// a `GFile`
    #[doc(alias = "gtk_picture_set_file")]
    #[doc(alias = "file")]
    pub fn set_file(&self, file: Option<&impl IsA<gio::File>>) {
        unsafe {
            ffi::gtk_picture_set_file(
                self.to_glib_none().0,
                file.map(|p| p.as_ref()).to_glib_none().0,
            );
        }
    }

    /// Makes @self load and display the given @filename.
    ///
    /// This is a utility function that calls [`set_file()`][Self::set_file()].
    /// ## `filename`
    /// the filename to play
    #[doc(alias = "gtk_picture_set_filename")]
    pub fn set_filename(&self, filename: Option<impl AsRef<std::path::Path>>) {
        unsafe {
            ffi::gtk_picture_set_filename(
                self.to_glib_none().0,
                filename.as_ref().map(|p| p.as_ref()).to_glib_none().0,
            );
        }
    }

    /// If set to [`true`], the @self will render its contents according to
    /// their aspect ratio.
    ///
    /// That means that empty space may show up at the top/bottom or
    /// left/right of @self.
    ///
    /// If set to [`false`] or if the contents provide no aspect ratio,
    /// the contents will be stretched over the picture's whole area.
    ///
    /// # Deprecated since 4.8
    ///
    /// Use [`set_content_fit()`][Self::set_content_fit()] instead. If still
    ///   used, this method will always set the [`content-fit`][struct@crate::Picture#content-fit]
    ///   property to `GTK_CONTENT_FIT_CONTAIN` if @keep_aspect_ratio is true,
    ///   otherwise it will set it to `GTK_CONTENT_FIT_FILL`.
    /// ## `keep_aspect_ratio`
    /// whether to keep aspect ratio
    #[cfg_attr(feature = "v4_8", deprecated = "Since 4.8")]
    #[allow(deprecated)]
    #[doc(alias = "gtk_picture_set_keep_aspect_ratio")]
    #[doc(alias = "keep-aspect-ratio")]
    pub fn set_keep_aspect_ratio(&self, keep_aspect_ratio: bool) {
        unsafe {
            ffi::gtk_picture_set_keep_aspect_ratio(
                self.to_glib_none().0,
                keep_aspect_ratio.into_glib(),
            );
        }
    }

    /// Makes @self display the given @paintable.
    ///
    /// If @paintable is [`None`], nothing will be displayed.
    ///
    /// See [`for_paintable()`][Self::for_paintable()] for details.
    /// ## `paintable`
    /// a [`gdk::Paintable`][crate::gdk::Paintable]
    #[doc(alias = "gtk_picture_set_paintable")]
    #[doc(alias = "paintable")]
    pub fn set_paintable(&self, paintable: Option<&impl IsA<gdk::Paintable>>) {
        unsafe {
            ffi::gtk_picture_set_paintable(
                self.to_glib_none().0,
                paintable.map(|p| p.as_ref()).to_glib_none().0,
            );
        }
    }

    /// Sets a [`Picture`][crate::Picture] to show a [`gdk_pixbuf::Pixbuf`][crate::gdk_pixbuf::Pixbuf].
    ///
    /// See [`for_pixbuf()`][Self::for_pixbuf()] for details.
    ///
    /// This is a utility function that calls [`set_paintable()`][Self::set_paintable()].
    ///
    /// # Deprecated since 4.12
    ///
    /// Use [`set_paintable()`][Self::set_paintable()] instead
    /// ## `pixbuf`
    /// a [`gdk_pixbuf::Pixbuf`][crate::gdk_pixbuf::Pixbuf]
    #[cfg_attr(feature = "v4_12", deprecated = "Since 4.12")]
    #[allow(deprecated)]
    #[doc(alias = "gtk_picture_set_pixbuf")]
    pub fn set_pixbuf(&self, pixbuf: Option<&gdk_pixbuf::Pixbuf>) {
        unsafe {
            ffi::gtk_picture_set_pixbuf(self.to_glib_none().0, pixbuf.to_glib_none().0);
        }
    }

    /// Makes @self load and display the resource at the given
    /// @resource_path.
    ///
    /// This is a utility function that calls [`set_file()`][Self::set_file()].
    /// ## `resource_path`
    /// the resource to set
    #[doc(alias = "gtk_picture_set_resource")]
    pub fn set_resource(&self, resource_path: Option<&str>) {
        unsafe {
            ffi::gtk_picture_set_resource(self.to_glib_none().0, resource_path.to_glib_none().0);
        }
    }

    #[doc(alias = "alternative-text")]
    pub fn connect_alternative_text_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_alternative_text_trampoline<F: Fn(&Picture) + 'static>(
            this: *mut ffi::GtkPicture,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"notify::alternative-text".as_ptr() as *const _,
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_alternative_text_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "can-shrink")]
    pub fn connect_can_shrink_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_can_shrink_trampoline<F: Fn(&Picture) + 'static>(
            this: *mut ffi::GtkPicture,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"notify::can-shrink".as_ptr() as *const _,
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_can_shrink_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[cfg(feature = "v4_8")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v4_8")))]
    #[doc(alias = "content-fit")]
    pub fn connect_content_fit_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_content_fit_trampoline<F: Fn(&Picture) + 'static>(
            this: *mut ffi::GtkPicture,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"notify::content-fit".as_ptr() as *const _,
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_content_fit_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "file")]
    pub fn connect_file_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_file_trampoline<F: Fn(&Picture) + 'static>(
            this: *mut ffi::GtkPicture,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"notify::file".as_ptr() as *const _,
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_file_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[cfg_attr(feature = "v4_8", deprecated = "Since 4.8")]
    #[doc(alias = "keep-aspect-ratio")]
    pub fn connect_keep_aspect_ratio_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_keep_aspect_ratio_trampoline<F: Fn(&Picture) + 'static>(
            this: *mut ffi::GtkPicture,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"notify::keep-aspect-ratio".as_ptr() as *const _,
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_keep_aspect_ratio_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "paintable")]
    pub fn connect_paintable_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_paintable_trampoline<F: Fn(&Picture) + 'static>(
            this: *mut ffi::GtkPicture,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"notify::paintable".as_ptr() as *const _,
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_paintable_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }
}

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

// rustdoc-stripper-ignore-next
/// A [builder-pattern] type to construct [`Picture`] objects.
///
/// [builder-pattern]: https://doc.rust-lang.org/1.0.0/style/ownership/builders.html
#[must_use = "The builder must be built to be used"]
pub struct PictureBuilder {
    builder: glib::object::ObjectBuilder<'static, Picture>,
}

impl PictureBuilder {
    fn new() -> Self {
        Self {
            builder: glib::object::Object::builder(),
        }
    }

    /// The alternative textual description for the picture.
    pub fn alternative_text(self, alternative_text: impl Into<glib::GString>) -> Self {
        Self {
            builder: self
                .builder
                .property("alternative-text", alternative_text.into()),
        }
    }

    /// If the [`Picture`][crate::Picture] can be made smaller than the natural size of its contents.
    pub fn can_shrink(self, can_shrink: bool) -> Self {
        Self {
            builder: self.builder.property("can-shrink", can_shrink),
        }
    }

    /// How the content should be resized to fit inside the [`Picture`][crate::Picture].
    #[cfg(feature = "v4_8")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v4_8")))]
    pub fn content_fit(self, content_fit: ContentFit) -> Self {
        Self {
            builder: self.builder.property("content-fit", content_fit),
        }
    }

    /// The `GFile` that is displayed or [`None`] if none.
    pub fn file(self, file: &impl IsA<gio::File>) -> Self {
        Self {
            builder: self.builder.property("file", file.clone().upcast()),
        }
    }

    /// Whether the GtkPicture will render its contents trying to preserve the aspect
    /// ratio.
    /// Use [`content-fit`][struct@crate::Picture#content-fit] instead.
    #[cfg_attr(feature = "v4_8", deprecated = "Since 4.8")]
    pub fn keep_aspect_ratio(self, keep_aspect_ratio: bool) -> Self {
        Self {
            builder: self
                .builder
                .property("keep-aspect-ratio", keep_aspect_ratio),
        }
    }

    /// The [`gdk::Paintable`][crate::gdk::Paintable] to be displayed by this [`Picture`][crate::Picture].
    pub fn paintable(self, paintable: &impl IsA<gdk::Paintable>) -> Self {
        Self {
            builder: self
                .builder
                .property("paintable", paintable.clone().upcast()),
        }
    }

    /// Whether the widget or any of its descendents can accept
    /// the input focus.
    ///
    /// This property is meant to be set by widget implementations,
    /// typically in their instance init function.
    pub fn can_focus(self, can_focus: bool) -> Self {
        Self {
            builder: self.builder.property("can-focus", can_focus),
        }
    }

    /// Whether the widget can receive pointer events.
    pub fn can_target(self, can_target: bool) -> Self {
        Self {
            builder: self.builder.property("can-target", can_target),
        }
    }

    /// A list of css classes applied to this widget.
    pub fn css_classes(self, css_classes: impl Into<glib::StrV>) -> Self {
        Self {
            builder: self.builder.property("css-classes", css_classes.into()),
        }
    }

    /// The name of this widget in the CSS tree.
    ///
    /// This property is meant to be set by widget implementations,
    /// typically in their instance init function.
    pub fn css_name(self, css_name: impl Into<glib::GString>) -> Self {
        Self {
            builder: self.builder.property("css-name", css_name.into()),
        }
    }

    /// The cursor used by @widget.
    pub fn cursor(self, cursor: &gdk::Cursor) -> Self {
        Self {
            builder: self.builder.property("cursor", cursor.clone()),
        }
    }

    /// Whether the widget should grab focus when it is clicked with the mouse.
    ///
    /// This property is only relevant for widgets that can take focus.
    pub fn focus_on_click(self, focus_on_click: bool) -> Self {
        Self {
            builder: self.builder.property("focus-on-click", focus_on_click),
        }
    }

    /// Whether this widget itself will accept the input focus.
    pub fn focusable(self, focusable: bool) -> Self {
        Self {
            builder: self.builder.property("focusable", focusable),
        }
    }

    /// How to distribute horizontal space if widget gets extra space.
    pub fn halign(self, halign: Align) -> Self {
        Self {
            builder: self.builder.property("halign", halign),
        }
    }

    /// Enables or disables the emission of the [`query-tooltip`][struct@crate::Widget#query-tooltip]
    /// signal on @widget.
    ///
    /// A true value indicates that @widget can have a tooltip, in this case
    /// the widget will be queried using [`query-tooltip`][struct@crate::Widget#query-tooltip] to
    /// determine whether it will provide a tooltip or not.
    pub fn has_tooltip(self, has_tooltip: bool) -> Self {
        Self {
            builder: self.builder.property("has-tooltip", has_tooltip),
        }
    }

    /// Overrides for height request of the widget.
    ///
    /// If this is -1, the natural request will be used.
    pub fn height_request(self, height_request: i32) -> Self {
        Self {
            builder: self.builder.property("height-request", height_request),
        }
    }

    /// Whether to expand horizontally.
    pub fn hexpand(self, hexpand: bool) -> Self {
        Self {
            builder: self.builder.property("hexpand", hexpand),
        }
    }

    /// Whether to use the `hexpand` property.
    pub fn hexpand_set(self, hexpand_set: bool) -> Self {
        Self {
            builder: self.builder.property("hexpand-set", hexpand_set),
        }
    }

    /// The [`LayoutManager`][crate::LayoutManager] instance to use to compute
    /// the preferred size of the widget, and allocate its children.
    ///
    /// This property is meant to be set by widget implementations,
    /// typically in their instance init function.
    pub fn layout_manager(self, layout_manager: &impl IsA<LayoutManager>) -> Self {
        Self {
            builder: self
                .builder
                .property("layout-manager", layout_manager.clone().upcast()),
        }
    }

    /// Makes this widget act like a modal dialog, with respect to
    /// event delivery.
    ///
    /// Global event controllers will not handle events with targets
    /// inside the widget, unless they are set up to ignore propagation
    /// limits. See [`EventControllerExt::set_propagation_limit()`][crate::prelude::EventControllerExt::set_propagation_limit()].
    #[cfg(feature = "v4_18")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v4_18")))]
    pub fn limit_events(self, limit_events: bool) -> Self {
        Self {
            builder: self.builder.property("limit-events", limit_events),
        }
    }

    /// Margin on bottom side of widget.
    ///
    /// This property adds margin outside of the widget's normal size
    /// request, the margin will be added in addition to the size from
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    pub fn margin_bottom(self, margin_bottom: i32) -> Self {
        Self {
            builder: self.builder.property("margin-bottom", margin_bottom),
        }
    }

    /// Margin on end of widget, horizontally.
    ///
    /// This property supports left-to-right and right-to-left text
    /// directions.
    ///
    /// This property adds margin outside of the widget's normal size
    /// request, the margin will be added in addition to the size from
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    pub fn margin_end(self, margin_end: i32) -> Self {
        Self {
            builder: self.builder.property("margin-end", margin_end),
        }
    }

    /// Margin on start of widget, horizontally.
    ///
    /// This property supports left-to-right and right-to-left text
    /// directions.
    ///
    /// This property adds margin outside of the widget's normal size
    /// request, the margin will be added in addition to the size from
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    pub fn margin_start(self, margin_start: i32) -> Self {
        Self {
            builder: self.builder.property("margin-start", margin_start),
        }
    }

    /// Margin on top side of widget.
    ///
    /// This property adds margin outside of the widget's normal size
    /// request, the margin will be added in addition to the size from
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    pub fn margin_top(self, margin_top: i32) -> Self {
        Self {
            builder: self.builder.property("margin-top", margin_top),
        }
    }

    /// The name of the widget.
    pub fn name(self, name: impl Into<glib::GString>) -> Self {
        Self {
            builder: self.builder.property("name", name.into()),
        }
    }

    /// The requested opacity of the widget.
    pub fn opacity(self, opacity: f64) -> Self {
        Self {
            builder: self.builder.property("opacity", opacity),
        }
    }

    /// How content outside the widget's content area is treated.
    ///
    /// This property is meant to be set by widget implementations,
    /// typically in their instance init function.
    pub fn overflow(self, overflow: Overflow) -> Self {
        Self {
            builder: self.builder.property("overflow", overflow),
        }
    }

    /// Whether the widget will receive the default action when it is focused.
    pub fn receives_default(self, receives_default: bool) -> Self {
        Self {
            builder: self.builder.property("receives-default", receives_default),
        }
    }

    /// Whether the widget responds to input.
    pub fn sensitive(self, sensitive: bool) -> Self {
        Self {
            builder: self.builder.property("sensitive", sensitive),
        }
    }

    /// Sets the text of tooltip to be the given string, which is marked up
    /// with Pango markup.
    ///
    /// Also see [`Tooltip::set_markup()`][crate::Tooltip::set_markup()].
    ///
    /// This is a convenience property which will take care of getting the
    /// tooltip shown if the given string is not `NULL`:
    /// [`has-tooltip`][struct@crate::Widget#has-tooltip] will automatically be set to true
    /// and there will be taken care of [`query-tooltip`][struct@crate::Widget#query-tooltip] in
    /// the default signal handler.
    ///
    /// Note that if both [`tooltip-text`][struct@crate::Widget#tooltip-text] and
    /// [`tooltip-markup`][struct@crate::Widget#tooltip-markup] are set, the last one wins.
    pub fn tooltip_markup(self, tooltip_markup: impl Into<glib::GString>) -> Self {
        Self {
            builder: self
                .builder
                .property("tooltip-markup", tooltip_markup.into()),
        }
    }

    /// Sets the text of tooltip to be the given string.
    ///
    /// Also see [`Tooltip::set_text()`][crate::Tooltip::set_text()].
    ///
    /// This is a convenience property which will take care of getting the
    /// tooltip shown if the given string is not `NULL`:
    /// [`has-tooltip`][struct@crate::Widget#has-tooltip] will automatically be set to true
    /// and there will be taken care of [`query-tooltip`][struct@crate::Widget#query-tooltip] in
    /// the default signal handler.
    ///
    /// Note that if both [`tooltip-text`][struct@crate::Widget#tooltip-text] and
    /// [`tooltip-markup`][struct@crate::Widget#tooltip-markup] are set, the last one wins.
    pub fn tooltip_text(self, tooltip_text: impl Into<glib::GString>) -> Self {
        Self {
            builder: self.builder.property("tooltip-text", tooltip_text.into()),
        }
    }

    /// How to distribute vertical space if widget gets extra space.
    pub fn valign(self, valign: Align) -> Self {
        Self {
            builder: self.builder.property("valign", valign),
        }
    }

    /// Whether to expand vertically.
    pub fn vexpand(self, vexpand: bool) -> Self {
        Self {
            builder: self.builder.property("vexpand", vexpand),
        }
    }

    /// Whether to use the `vexpand` property.
    pub fn vexpand_set(self, vexpand_set: bool) -> Self {
        Self {
            builder: self.builder.property("vexpand-set", vexpand_set),
        }
    }

    /// Whether the widget is visible.
    pub fn visible(self, visible: bool) -> Self {
        Self {
            builder: self.builder.property("visible", visible),
        }
    }

    /// Overrides for width request of the widget.
    ///
    /// If this is -1, the natural request will be used.
    pub fn width_request(self, width_request: i32) -> Self {
        Self {
            builder: self.builder.property("width-request", width_request),
        }
    }

    /// The accessible role of the given [`Accessible`][crate::Accessible] implementation.
    ///
    /// The accessible role cannot be changed once set.
    pub fn accessible_role(self, accessible_role: AccessibleRole) -> Self {
        Self {
            builder: self.builder.property("accessible-role", accessible_role),
        }
    }

    // rustdoc-stripper-ignore-next
    /// Build the [`Picture`].
    #[must_use = "Building the object from the builder is usually expensive and is not expected to have side effects"]
    pub fn build(self) -> Picture {
        assert_initialized_main_thread!();
        self.builder.build()
    }
}