Png 1.2.0 Released

png version 1.2.0 has been released!

PNG is an almost-pure-ruby PNG library. It lets you write a PNG
without any C libraries.


1.2.0 / 2009-06-23

  • 26 minor enhancements:

    • Add load_metadata flag to PNG.load to extract dimensions and depth.
    • Add pure-ruby versions back for png_join and png_crc.
    • Added Canvas#composite(canvas, x, y, style) with overwrite,
      underlay, overlay, and blend.
    • Added Canvas#each, passes x, y, color.
    • Added Canvas#extract.
    • Added Color#|, Background color is effective false.
    • Added Font#coordinates and cached each letter when extracted.
    • Added PNG::load_file.
    • Added reader tests.
    • Added tests for PNG::Font.
    • Added tests for PNG::load.
    • Added to/from hsv methods to Color.
    • Clean up tests to remove duplication.
    • Cleaned up Color#to_ascii to make much easier to read and extend.
    • Cleaned up a fair amount of code, removing as many raw literals as
    • Color#blend is a simple averaging algorithm now.
    • Extended reader to include RGB as well, paving the way for
    • Fake support for RGB as well as RGBA (default alpha to 255).
    • Made reader work again (was flipped and all sorts of broken).
    • Split out reader.
    • Switched to minitest.
    • Time to refactor PNG::Font to use #extract and #composite
    • Updated Rakefile to new hoe capabilities.
    • Updated manifest.
    • metadata_only now cleaner.
    • read_IHDR now returns height, width instead of a canvas.
  • 3 bug fixes:

    • Fixed example/lines and added text.
    • Fixes for 1.9.
    • Ignore color profile if it exists (fixes problems on osx