svgwriter 0.1.1

Typed SVG Writer
Documentation 
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use crate::{
	tag::Tag as _,
	tags::Svg,
	xmlwriter::{Indent, Options as XmlOptions, XmlWriter}
};
use std::ops::{Deref, DerefMut};

/// An SVG graphic.
pub struct Graphic(Svg);

impl Default for Graphic {
	fn default() -> Self {
		Self::new()
	}
}

impl Graphic {
	pub fn new() -> Self {
		let mut svg = Svg::new();
		svg.set_attr("xmlns".into(), "http://www.w3.org/2000/svg");
		svg.set_attr("xmlns:xlink".into(), "http://www.w3.org/1999/xlink");
		Self(svg)
	}

	fn write(&self, opts: XmlOptions, pretty: bool) -> String {
		let mut writer = XmlWriter::new(opts);
		self.0.write_to(&mut writer, pretty);
		writer.end_document()
	}

	#[allow(clippy::inherent_to_string)]
	pub fn to_string(&self) -> String {
		let opts = XmlOptions {
			use_single_quote: true,
			indent: Indent::None,
			attributes_indent: Indent::None
		};
		self.write(opts, false)
	}

	pub fn to_string_pretty(&self) -> String {
		let opts = XmlOptions {
			use_single_quote: true,
			indent: Indent::Spaces(2),
			attributes_indent: Indent::None
		};
		self.write(opts, true)
	}
}

impl Deref for Graphic {
	type Target = Svg;

	fn deref(&self) -> &Self::Target {
		&self.0
	}
}

impl DerefMut for Graphic {
	fn deref_mut(&mut self) -> &mut Self::Target {
		&mut self.0
	}
}

#[cfg(test)]
mod tests {
	use super::*;
	use crate::tags::{TagWithPresentationAttributes, Text};

	#[test]
	fn empty_svg() {
		let svg = Graphic::new();
		let expected = "<svg xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink'/>";
		assert_eq!(svg.to_string(), expected);
	}

	#[test]
	fn hello_world() {
		let mut svg = Graphic::new();
		svg.set_view_box("0 0 200 50");
		svg.push(
			Text::new()
				.with_x(100)
				.with_y(25)
				.with_text_anchor("middle")
				.with_dominant_baseline("middle")
				.append("Hello World!")
		);
		let expected = concat!(
			"<svg xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' viewBox='0 0 200 50'>",
			"<text x='100' y='25' text-anchor='middle' dominant-baseline='middle'>",
			"Hello World!",
			"</text>",
			"</svg>"
		);
		assert_eq!(svg.to_string(), expected);
	}

	#[test]
	#[cfg(feature = "raw")]
	fn include_svg() {
		let mut svg = Graphic::new();
		svg.set_width(100);
		svg.set_height(100);
		svg.set_view_box("0 0 100 100");
		svg.push(crate::RawXml::new_unchecked("<svg xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' width='100' height='100' viewBox='0 0 100 100'><path d='M10,30a20,20,0,0,1,40,0a20,20,0,0,1,40,0q0,30,-40,60q-40,-30,-40,-60' fill='#A919FA' fill-opacity='0.5' stroke='#A919FA' stroke-width='3'/></svg>"));
		let expected = concat!(
			"<svg xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' width='100' height='100' viewBox='0 0 100 100'>",
			"<svg xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' width='100' height='100' viewBox='0 0 100 100'><path d='M10,30a20,20,0,0,1,40,0a20,20,0,0,1,40,0q0,30,-40,60q-40,-30,-40,-60' fill='#A919FA' fill-opacity='0.5' stroke='#A919FA' stroke-width='3'/></svg>",
			"</svg>"
		);
		assert_eq!(svg.to_string(), expected);
	}
}