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#![doc(html_root_url = "https://docs.rs/resvg-qt/0.10.0")]
#![warn(missing_docs)]
macro_rules! try_opt {
($task:expr) => {
match $task {
Some(v) => v,
None => return,
}
};
}
macro_rules! try_opt_or {
($task:expr, $ret:expr) => {
match $task {
Some(v) => v,
None => return $ret,
}
};
}
macro_rules! try_opt_warn {
($task:expr, $msg:expr) => {
match $task {
Some(v) => v,
None => {
log::warn!($msg);
return;
}
}
};
($task:expr, $fmt:expr, $($arg:tt)*) => {
match $task {
Some(v) => v,
None => {
log::warn!($fmt, $($arg)*);
return;
}
}
};
}
use usvg::{NodeExt, ScreenSize};
use log::warn;
mod clip;
mod filter;
mod image;
mod layers;
mod mask;
mod paint_server;
mod path;
mod qt;
mod render;
pub struct Options {
pub usvg: usvg::Options,
pub fit_to: usvg::FitTo,
pub background: Option<usvg::Color>,
}
impl Default for Options {
fn default() -> Options {
Options {
usvg: usvg::Options::default(),
fit_to: usvg::FitTo::Original,
background: None,
}
}
}
pub fn render_to_image(
tree: &usvg::Tree,
opt: &Options,
) -> Option<qt::Image> {
let (mut img, img_size) = render::create_root_image(tree.svg_node().size.to_screen_size(), opt)?;
let mut painter = qt::Painter::new(&mut img);
render_to_canvas(tree, opt, img_size, &mut painter);
painter.end();
Some(img)
}
pub fn render_node_to_image(
node: &usvg::Node,
opt: &Options,
) -> Option<qt::Image> {
let node_bbox = if let Some(bbox) = node.calculate_bbox() {
bbox
} else {
warn!("Node '{}' has zero size.", node.id());
return None;
};
let vbox = usvg::ViewBox {
rect: node_bbox,
aspect: usvg::AspectRatio::default(),
};
let (mut img, img_size) = render::create_root_image(node_bbox.size().to_screen_size(), opt)?;
let mut painter = qt::Painter::new(&mut img);
render_node_to_canvas(node, opt, vbox, img_size, &mut painter);
painter.end();
Some(img)
}
pub fn render_to_canvas(
tree: &usvg::Tree,
opt: &Options,
img_size: ScreenSize,
painter: &mut qt::Painter,
) {
render_node_to_canvas(&tree.root(), opt, tree.svg_node().view_box, img_size, painter);
}
pub fn render_node_to_canvas(
node: &usvg::Node,
opt: &Options,
view_box: usvg::ViewBox,
img_size: ScreenSize,
painter: &mut qt::Painter,
) {
render::render_node_to_canvas(node, opt, view_box, img_size, &mut render::RenderState::Ok, painter)
}
pub unsafe fn painter_from_ptr(painter: *mut std::ffi::c_void) -> qt::Painter {
qt::Painter::from_raw(painter as _)
}