#[repr(transparent)]pub struct Image { /* private fields */ }Expand description
The Image widget displays an image.
Various kinds of object can be displayed as an image; most typically,
you would load a gdk::Texture from a file, using the convenience function
from_file(), for instance:
⚠️ The following code is in c ⚠️
GtkWidget *image = gtk_image_new_from_file ("myfile.png");
If the file isn’t loaded successfully, the image 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(), then create the Image with
from_paintable().
Sometimes an application will want to avoid depending on external data
files, such as image files. See the documentation of GResource inside
GIO, for details. In this case, property::Image::resource,
from_resource(), and set_from_resource()
should be used.
Image displays its image as an icon, with a size that is determined
by the application. See Picture if you want to show an image
at is actual size.
CSS nodes
Image has a single CSS node with the name image. The style classes
.normal-icons or .large-icons may appear, depending on the
property::Image::icon-size property.
Accessibility
Image uses the GTK_ACCESSIBLE_ROLE_IMG role.
Implements
WidgetExt, glib::ObjectExt, AccessibleExt, BuildableExt, ConstraintTargetExt, WidgetExtManual, AccessibleExtManual
Implementations§
source§impl Image
impl Image
sourcepub fn from_file(filename: impl AsRef<Path>) -> Image
pub fn from_file(filename: impl AsRef<Path>) -> Image
Creates a new Image displaying the file @filename.
If the file isn’t found or can’t be loaded, the resulting Image
will display a “broken image” icon. This function never returns None,
it always returns a valid Image widget.
If you need to detect failures to load the file, use
gdk::Texture::from_file() to load the file yourself,
then create the Image from the texture.
The storage type (see storage_type())
of the returned image is not defined, it will be whatever
is appropriate for displaying the file.
filename
a filename
Returns
a new Image
sourcepub fn from_gicon(icon: &impl IsA<Icon>) -> Image
pub fn from_gicon(icon: &impl IsA<Icon>) -> Image
sourcepub fn from_icon_name(icon_name: &str) -> Image
pub fn from_icon_name(icon_name: &str) -> Image
sourcepub fn from_paintable(paintable: Option<&impl IsA<Paintable>>) -> Image
pub fn from_paintable(paintable: Option<&impl IsA<Paintable>>) -> Image
Creates a new Image displaying @paintable.
The Image does not assume a reference to the paintable; you still
need to unref it if you own references. Image will add its own
reference rather than adopting yours.
The Image will track changes to the @paintable and update
its size and contents in response to it.
paintable
Returns
a new Image
sourcepub fn from_pixbuf(pixbuf: Option<&Pixbuf>) -> Image
pub fn from_pixbuf(pixbuf: Option<&Pixbuf>) -> Image
Creates a new Image displaying @pixbuf.
The Image does not assume a reference to the pixbuf; you still
need to unref it if you own references. Image will add its own
reference rather than adopting yours.
This is a helper for from_paintable(), and you can’t
get back the exact pixbuf once this is called, only a texture.
Note that this function just creates an Image from the pixbuf.
The Image created will not react to state changes. Should you
want that, you should use from_icon_name().
pixbuf
Returns
a new Image
sourcepub fn from_resource(resource_path: &str) -> Image
pub fn from_resource(resource_path: &str) -> Image
Creates a new Image displaying the resource file @resource_path.
If the file isn’t found or can’t be loaded, the resulting Image will
display a “broken image” icon. This function never returns None,
it always returns a valid Image widget.
If you need to detect failures to load the file, use
gdk_pixbuf::Pixbuf::from_file() to load the file yourself,
then create the Image from the pixbuf.
The storage type (see storage_type()) of
the returned image is not defined, it will be whatever is
appropriate for displaying the file.
resource_path
a resource path
Returns
a new Image
sourcepub fn builder() -> ImageBuilder
pub fn builder() -> ImageBuilder
Creates a new builder-pattern struct instance to construct Image objects.
This method returns an instance of ImageBuilder which can be used to create Image objects.
sourcepub fn gicon(&self) -> Option<Icon>
pub fn gicon(&self) -> Option<Icon>
Gets the GIcon being displayed by the Image.
The storage type of the image must be ImageType::Empty or
ImageType::Gicon (see storage_type()).
The caller of this function does not own a reference to the
returned GIcon.
Returns
a GIcon
sourcepub fn icon_name(&self) -> Option<GString>
pub fn icon_name(&self) -> Option<GString>
Gets the icon name and size being displayed by the Image.
The storage type of the image must be ImageType::Empty or
ImageType::IconName (see storage_type()).
The returned string is owned by the Image and should not
be freed.
Returns
the icon name
sourcepub fn paintable(&self) -> Option<Paintable>
pub fn paintable(&self) -> Option<Paintable>
Gets the image gdk::Paintable being displayed by the Image.
The storage type of the image must be ImageType::Empty or
ImageType::Paintable (see storage_type()).
The caller of this function does not own a reference to the
returned paintable.
Returns
the displayed paintable
sourcepub fn pixel_size(&self) -> i32
pub fn pixel_size(&self) -> i32
sourcepub fn storage_type(&self) -> ImageType
pub fn storage_type(&self) -> ImageType
Gets the type of representation being used by the Image
to store image data.
If the Image has no image data, the return value will
be ImageType::Empty.
Returns
image representation being used
sourcepub fn set_from_file(&self, filename: Option<impl AsRef<Path>>)
pub fn set_from_file(&self, filename: Option<impl AsRef<Path>>)
sourcepub fn set_from_gicon(&self, icon: &impl IsA<Icon>)
pub fn set_from_gicon(&self, icon: &impl IsA<Icon>)
sourcepub fn set_from_icon_name(&self, icon_name: Option<&str>)
pub fn set_from_icon_name(&self, icon_name: Option<&str>)
sourcepub fn set_from_paintable(&self, paintable: Option<&impl IsA<Paintable>>)
pub fn set_from_paintable(&self, paintable: Option<&impl IsA<Paintable>>)
sourcepub fn set_from_pixbuf(&self, pixbuf: Option<&Pixbuf>)
pub fn set_from_pixbuf(&self, pixbuf: Option<&Pixbuf>)
Sets a Image to show a gdk_pixbuf::Pixbuf.
See from_pixbuf() for details.
Note: This is a helper for set_from_paintable(),
and you can’t get back the exact pixbuf once this is called,
only a paintable.
pixbuf
a gdk_pixbuf::Pixbuf or NULL
sourcepub fn set_from_resource(&self, resource_path: Option<&str>)
pub fn set_from_resource(&self, resource_path: Option<&str>)
sourcepub fn set_icon_size(&self, icon_size: IconSize)
pub fn set_icon_size(&self, icon_size: IconSize)
sourcepub fn set_pixel_size(&self, pixel_size: i32)
pub fn set_pixel_size(&self, pixel_size: i32)
Sets the pixel size to use for named icons.
If the pixel size is set to a value != -1, it is used instead
of the icon size set by set_from_icon_name().
pixel_size
the new pixel size
sourcepub fn set_gicon<P: IsA<Icon>>(&self, gicon: Option<&P>)
pub fn set_gicon<P: IsA<Icon>>(&self, gicon: Option<&P>)
The GIcon displayed in the GtkImage.
For themed icons, If the icon theme is changed, the image will be updated automatically.
sourcepub fn set_icon_name(&self, icon_name: Option<&str>)
pub fn set_icon_name(&self, icon_name: Option<&str>)
The name of the icon in the icon theme.
If the icon theme is changed, the image will be updated automatically.
sourcepub fn set_paintable<P: IsA<Paintable>>(&self, paintable: Option<&P>)
pub fn set_paintable<P: IsA<Paintable>>(&self, paintable: Option<&P>)
The gdk::Paintable to display.
sourcepub fn set_resource(&self, resource: Option<&str>)
pub fn set_resource(&self, resource: Option<&str>)
A path to a resource file to display.
sourcepub fn uses_fallback(&self) -> bool
pub fn uses_fallback(&self) -> bool
Whether the icon displayed in the Image will use
standard icon names fallback.
The value of this property is only relevant for images of type
ImageType::IconName and ImageType::Gicon.
sourcepub fn set_use_fallback(&self, use_fallback: bool)
pub fn set_use_fallback(&self, use_fallback: bool)
Whether the icon displayed in the Image will use
standard icon names fallback.
The value of this property is only relevant for images of type
ImageType::IconName and ImageType::Gicon.
pub fn connect_file_notify<F: Fn(&Self) + 'static>(
&self,
f: F
) -> SignalHandlerId
pub fn connect_gicon_notify<F: Fn(&Self) + 'static>(
&self,
f: F
) -> SignalHandlerId
pub fn connect_icon_name_notify<F: Fn(&Self) + 'static>(
&self,
f: F
) -> SignalHandlerId
pub fn connect_icon_size_notify<F: Fn(&Self) + 'static>(
&self,
f: F
) -> SignalHandlerId
pub fn connect_paintable_notify<F: Fn(&Self) + 'static>(
&self,
f: F
) -> SignalHandlerId
pub fn connect_pixel_size_notify<F: Fn(&Self) + 'static>(
&self,
f: F
) -> SignalHandlerId
pub fn connect_resource_notify<F: Fn(&Self) + 'static>(
&self,
f: F
) -> SignalHandlerId
pub fn connect_storage_type_notify<F: Fn(&Self) + 'static>(
&self,
f: F
) -> SignalHandlerId
pub fn connect_use_fallback_notify<F: Fn(&Self) + 'static>(
&self,
f: F
) -> SignalHandlerId
Trait Implementations§
source§impl Ord for Image
impl Ord for Image
source§impl<OT: ObjectType> PartialEq<OT> for Image
impl<OT: ObjectType> PartialEq<OT> for Image
source§impl<OT: ObjectType> PartialOrd<OT> for Image
impl<OT: ObjectType> PartialOrd<OT> for Image
1.0.0 · source§fn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
self and other) and is used by the <=
operator. Read moresource§impl StaticType for Image
impl StaticType for Image
source§fn static_type() -> Type
fn static_type() -> Type
Self.impl Eq for Image
impl IsA<Accessible> for Image
impl IsA<Buildable> for Image
impl IsA<ConstraintTarget> for Image
impl IsA<Widget> for Image
Auto Trait Implementations§
impl RefUnwindSafe for Image
impl !Send for Image
impl !Sync for Image
impl Unpin for Image
impl UnwindSafe for Image
Blanket Implementations§
source§impl<O> AccessibleExtManual for Owhere
O: IsA<Accessible>,
impl<O> AccessibleExtManual for Owhere
O: IsA<Accessible>,
source§fn update_property(&self, properties: &[Property<'_>])
fn update_property(&self, properties: &[Property<'_>])
source§fn update_relation(&self, relations: &[Relation<'_>])
fn update_relation(&self, relations: &[Relation<'_>])
source§fn update_state(&self, states: &[State])
fn update_state(&self, states: &[State])
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T: ObjectType,
impl<T> Cast for Twhere
T: ObjectType,
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