flruler

A desktop pixel ruler. Runs on Mac, Linux, Windows, FreeBSD.

A program for measuring the pixel size of on-screen elements. Intended for GUI debugging to verify widget separations and sizes, though may also be used for general computer graphics debugging purposes, including measuring pixel distances of images, web applications, etc.

You can easily make copies of the ruler and reorient it with arrow keys and mouse:

Keyboard     Description
--------     ---------------------------------------------
   c         Copy the current ruler (that has keyboard focus)
   Esc       Closes current ruler (that has keyboard focus)
   q         Quit all rulers
             _
   Up         |
   Down       |_ Re-orients ruler
   Left       |  Arrow points to where zero will be
   Right     _|

   +         Increase length of ruler by 10%
   -         Decrease length of ruler by 10%

Mouse Operation      Description
---------------      ---------------------------------------------
Left-Drag            Drags current ruler around for positioning
Left-Double-click    Reverses direction of current ruler's numbers
Left-Triple-click    Rotates current ruler 90 degrees
Middle-Click         Makes copy of current ruler

LICENSE

This code is licensed as GPL 3; see LICENSE file for details.

BUGS

To report bugs, create an 'issue' on the project's github page:
https://github.com/erco77/flruler

DOCUMENTATION

See ./docs/flruler.html

WEBSITE

github:  https://github.com/erco77/flruler
webpage: http://seriss.com/people/erco/fltk/flruler