Dave Jarvis' Repositories

git clone https://repo.autonoma.ca/repo/keenwrite.git
keenwrite / Commits / ce58625

Upgrade to JavaFX 14, lazy load math renderer

AuthorDaveJarvis <email>
Date2020-09-16 21:55:16 GMT-0700
Commitce58625a2df5db6db2514853d69f2a96b765067a
Parentbc4f743
Delta18 lines added, 5 lines removed, 13-line increase
src/main/java/com/scrivenvar/preview/SvgReplacedElementFactory.java
* a document to transform them into rasterized versions.
*/
-public class SvgReplacedElementFactory
- implements ReplacedElementFactory {
+public class SvgReplacedElementFactory implements ReplacedElementFactory {
+
+ /**
+ * Prevent instantiation until needed.
+ */
+ private static class LazyContainer {
+ private static final MathRenderer INSTANCE = new MathRenderer();
+ }
+
+ /**
+ * Returns the singleton instance for rendering math symbols.
+ *
+ * @return A non-null instance, loaded, configured, and ready to render math.
+ */
+ public static MathRenderer getInstance() {
+ return LazyContainer.INSTANCE;
+ }
/**
private static final String HTML_IMAGE = "img";
private static final String HTML_IMAGE_SRC = "src";
-
- private static final MathRenderer sMathRenderer = new MathRenderer();
/**
final var src = e.getTextContent();
image = getCachedImage(
- src, __ -> rasterize( sMathRenderer.render( src ) )
+ src, __ -> rasterize( getInstance().render( src ) )
);
}