Trait gsk4::prelude::RendererExtManual [−][src]
pub trait RendererExtManual: 'static {
fn render<P: AsRef<RenderNode>>(&self, root: &P, region: Option<&Region>);
fn render_texture<P: AsRef<RenderNode>>(
&self,
root: &P,
viewport: Option<&Rect>
) -> Option<Texture>;
}Required methods
Renders the scene graph, described by a tree of RenderNode instances,
ensuring that the given region gets redrawn.
Renderers must ensure that changes of the contents given by the root
node as well as the area given by region are redrawn. They are however
free to not redraw any pixel outside of region if they can guarantee that
it didn’t change.
The self will acquire a reference on the RenderNode tree while
the rendering is in progress.
root
region
the cairo_region_t that must be redrawn or None
for the whole window
fn render_texture<P: AsRef<RenderNode>>(
&self,
root: &P,
viewport: Option<&Rect>
) -> Option<Texture>
fn render_texture<P: AsRef<RenderNode>>(
&self,
root: &P,
viewport: Option<&Rect>
) -> Option<Texture>
Renders the scene graph, described by a tree of RenderNode instances,
to a gdk::Texture.
The self will acquire a reference on the RenderNode tree while
the rendering is in progress.
If you want to apply any transformations to root, you should put it into a
transform node and pass that node instead.
root
viewport
the section to draw or None to use root’s bounds
Returns
a gdk::Texture with the rendered contents of root.