Struct gsk4::CrossFadeNode
source · #[repr(transparent)]pub struct CrossFadeNode { /* private fields */ }
Expand description
A render node cross fading between two child nodes.
Implementations§
source§impl CrossFadeNode
impl CrossFadeNode
source§impl CrossFadeNode
impl CrossFadeNode
sourcepub fn new(
start: impl AsRef<RenderNode>,
end: impl AsRef<RenderNode>,
progress: f32
) -> CrossFadeNode
pub fn new( start: impl AsRef<RenderNode>, end: impl AsRef<RenderNode>, progress: f32 ) -> CrossFadeNode
Creates a RenderNode
that will do a cross-fade between @start and @end.
start
The start node to be drawn
end
The node to be cross_fadeed onto the @start node
progress
How far the fade has progressed from start to end. The value will be clamped to the range [0 … 1]
Returns
A new RenderNode
sourcepub fn end_child(&self) -> RenderNode
pub fn end_child(&self) -> RenderNode
sourcepub fn start_child(&self) -> RenderNode
pub fn start_child(&self) -> RenderNode
Methods from Deref<Target = RenderNode>§
pub const NONE: Option<&'static RenderNode> = None
sourcepub fn draw(&self, cr: &Context)
pub fn draw(&self, cr: &Context)
Draw the contents of @self to the given cairo context.
Typically, you’ll use this function to implement fallback rendering
of RenderNode
s on an intermediate Cairo context, instead of using
the drawing context associated to a gdk::Surface
’s rendering buffer.
For advanced nodes that cannot be supported using Cairo, in particular for nodes doing 3D operations, this function may fail.
cr
cairo context to draw to
sourcepub fn node_type(&self) -> RenderNodeType
pub fn node_type(&self) -> RenderNodeType
sourcepub fn serialize(&self) -> Bytes
pub fn serialize(&self) -> Bytes
Serializes the @self for later deserialization via gsk_render_node_deserialize(). No guarantees are made about the format used other than that the same version of GTK will be able to deserialize the result of a call to gsk_render_node_serialize() and gsk_render_node_deserialize() will correctly reject files it cannot open that were created with previous versions of GTK.
The intended use of this functions is testing, benchmarking and debugging. The format is not meant as a permanent storage format.
Returns
a GBytes
representing the node.
sourcepub fn write_to_file(&self, filename: impl AsRef<Path>) -> Result<(), Error>
pub fn write_to_file(&self, filename: impl AsRef<Path>) -> Result<(), Error>
This function is equivalent to calling serialize()
followed by file_set_contents()
.
See those two functions for details on the arguments.
It is mostly intended for use inside a debugger to quickly dump a render node to a file for later inspection.
filename
the file to save it to.
Returns
true
if saving was successful
pub fn is<T: IsRenderNode>(&self) -> bool
pub fn type_(&self) -> Type
pub fn downcast_ref<T: IsRenderNode>(&self) -> Option<&T>
Trait Implementations§
source§impl AsRef<RenderNode> for CrossFadeNode
impl AsRef<RenderNode> for CrossFadeNode
source§fn as_ref(&self) -> &RenderNode
fn as_ref(&self) -> &RenderNode
source§impl Clone for CrossFadeNode
impl Clone for CrossFadeNode
source§impl Debug for CrossFadeNode
impl Debug for CrossFadeNode
source§impl Deref for CrossFadeNode
impl Deref for CrossFadeNode
source§impl Display for CrossFadeNode
impl Display for CrossFadeNode
source§impl<'a> FromValue<'a> for CrossFadeNode
Available on crate feature v4_6
only.
impl<'a> FromValue<'a> for CrossFadeNode
v4_6
only.§type Checker = GenericValueTypeOrNoneChecker<CrossFadeNode>
type Checker = GenericValueTypeOrNoneChecker<CrossFadeNode>
source§unsafe fn from_value(value: &'a Value) -> Self
unsafe fn from_value(value: &'a Value) -> Self
Value
. Read moresource§impl IsRenderNode for CrossFadeNode
impl IsRenderNode for CrossFadeNode
const NODE_TYPE: RenderNodeType = RenderNodeType::CrossFadeNode
fn upcast(self) -> RenderNode
fn upcast_ref(&self) -> &RenderNode
source§impl StaticType for CrossFadeNode
impl StaticType for CrossFadeNode
source§fn static_type() -> Type
fn static_type() -> Type
Self
.source§impl ToValue for CrossFadeNode
Available on crate feature v4_6
only.
impl ToValue for CrossFadeNode
v4_6
only.source§impl ToValueOptional for CrossFadeNode
Available on crate feature v4_6
only.
impl ToValueOptional for CrossFadeNode
v4_6
only.source§impl ValueType for CrossFadeNode
Available on crate feature v4_6
only.
impl ValueType for CrossFadeNode
v4_6
only.§type Type = CrossFadeNode
type Type = CrossFadeNode
Type
from. Read more