[−][src]Trait resvg::Render

pub trait Render {
    fn render_to_image(
        &self, 
        tree: &Tree, 
        opt: &Options
    ) -> Option<Box<dyn OutputImage>>;
    fn render_node_to_image(
        &self, 
        node: &Node, 
        opt: &Options
    ) -> Option<Box<dyn OutputImage>>;
    fn calc_node_bbox(&self, node: &Node, opt: &Options) -> Option<Rect>;
}

A generic interface for image rendering.

Instead of using backend implementation directly, you can use this trait to write backend-independent code.

Required methods

`fn render_to_image( &self, tree: &Tree, opt: &Options ) -> Option<Box<dyn OutputImage>>`

Renders SVG to image.

Returns None if an image allocation failed.

`fn render_node_to_image( &self, node: &Node, opt: &Options ) -> Option<Box<dyn OutputImage>>`

Renders SVG node to image.

Returns None if an image allocation failed.

`fn calc_node_bbox(&self, node: &Node, opt: &Options) -> Option<Rect>`

Calculates node's absolute bounding box.

Note: this method can be pretty expensive.

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Implementors