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// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
// external
use cairo::{
self,
MatrixTrait,
};
use usvg;
use usvg::prelude::*;
// self
use super::prelude::*;
use super::{
path,
text,
};
pub fn apply(
node: &usvg::Node,
cp: &usvg::ClipPath,
opt: &Options,
bbox: Rect,
layers: &mut CairoLayers,
cr: &cairo::Context,
) {
// a-clip-path-001.svg
// e-clipPath-001.svg
let clip_surface = try_opt!(layers.get(), ());
let clip_surface = clip_surface.borrow_mut();
let clip_cr = cairo::Context::new(&*clip_surface);
clip_cr.set_source_rgba(0.0, 0.0, 0.0, 1.0);
clip_cr.paint();
// e-clipPath-006.svg
// e-clipPath-007.svg
clip_cr.set_matrix(cr.get_matrix());
// e-clipPath-008.svg
clip_cr.transform(cp.transform.to_native());
// e-clipPath-005.svg
if cp.units == usvg::Units::ObjectBoundingBox {
let m = cairo::Matrix::from_bbox(bbox);
clip_cr.transform(m);
}
clip_cr.set_operator(cairo::Operator::Clear);
let matrix = clip_cr.get_matrix();
// e-clipPath-015.svg
// e-clipPath-017.svg
for node in node.children() {
clip_cr.transform(node.transform().to_native());
match *node.borrow() {
usvg::NodeKind::Path(ref p) => {
path::draw(&node.tree(), p, opt, &clip_cr);
}
usvg::NodeKind::Text(ref text) => {
// e-clipPath-009.svg
// e-clipPath-010.svg
// e-clipPath-011.svg
// e-clipPath-012.svg
text::draw(&node.tree(), text, opt, &clip_cr);
}
_ => {}
}
clip_cr.set_matrix(matrix);
}
cr.set_matrix(cairo::Matrix::identity());
cr.set_source_surface(&*clip_surface, 0.0, 0.0);
cr.set_operator(cairo::Operator::DestOut);
cr.paint();
// Reset operator.
cr.set_operator(cairo::Operator::Over);
// Reset source to unborrow the `clip_surface` from the `Context`.
cr.reset_source_rgba();
}
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