Java Glyph Tester
A tool for testing the JDK font rendering behaviour
###Build
This project uses maven to build : mvn clean install builds the uberjar necessary to run the tool.
###Run Below command will generate an image for all glyphs contained in Hack-Regular, at size 14, using c:\tmp as output directory
java -jar java-glyphtester-0.1.jar --fontfile C:\Users\jorgheymans\Downloads\Hack-v2_020-ttf\Hack-Regular.ttf --fontsize 14 --fontstyle regular --outputdirectory c:\tmp
If you only want to test one or more specific glyphs you can specify them at the end like this:
java -jar java-glyphtester-0.1.jar --fontfile C:\Users\jorgheymans\Downloads\Hack-v2_020-ttf\Hack-Regular.ttf --fontsize 14 --fontstyle regular --outputdirectory c:\tmp A B C D
Add --repeatGlyph to repeat the glyph in the output, for example --glyphRepeat 5 will render aaaaa instead of just a.
Note that per glyph 8 images are generated, one for each aliasing mode available in the standard jdk:
- RenderingHints.VALUE_TEXT_ANTIALIAS_DEFAULT
- RenderingHints.VALUE_TEXT_ANTIALIAS_GASP
- RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_HBGR
- RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_HRGB
- RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_VBGR
- RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_VRGB
- RenderingHints.VALUE_TEXT_ANTIALIAS_OFF
- RenderingHints.VALUE_TEXT_ANTIALIAS_ON
See https://docs.oracle.com/javase/7/docs/api/java/awt/RenderingHints.html for more info