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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 qt;
// self
use tree::{
self,
NodeExt,
};
use math::*;
use traits::{
ConvTransform,
TransformFromBBox,
};
use super::{
path,
text,
};
use {
Options,
};
pub fn apply(
node: tree::NodeRef,
cp: &tree::ClipPath,
opt: &Options,
bbox: Rect,
img_size: ScreenSize,
p: &qt::Painter,
) {
let mut clip_img = qt::Image::new(
img_size.width as u32,
img_size.height as u32,
).unwrap(); // TODO: remove
clip_img.fill(0, 0, 0, 255);
clip_img.set_dpi(opt.dpi);
let clip_p = qt::Painter::new(&clip_img);
clip_p.set_transform(&p.get_transform());
clip_p.apply_transform(&cp.transform.to_native());
if cp.units == tree::Units::ObjectBoundingBox {
clip_p.apply_transform(&qt::Transform::from_bbox(bbox));
}
clip_p.set_composition_mode(qt::CompositionMode::CompositionMode_Clear);
let ts = clip_p.get_transform();
for node in node.children() {
clip_p.apply_transform(&node.transform().to_native());
match *node.value() {
tree::NodeKind::Path(ref path_node) => {
path::draw(node.tree(), path_node, opt, &clip_p);
}
tree::NodeKind::Text(_) => {
text::draw(node, opt, &clip_p);
}
_ => {}
}
clip_p.set_transform(&ts);
}
clip_p.end();
p.set_transform(&qt::Transform::default());
p.set_composition_mode(qt::CompositionMode::CompositionMode_DestinationOut);
p.draw_image(0.0, 0.0, &clip_img);
}
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