JHotDraw 7 is a two-dimensional graphics framework
for structured drawing editors. It can be used to create many different editors
from a simple doodle program up to full fledged diagram editors and vector
JHotDraw 7 is a major rewrite of earlier versions
of JHotDraw which
in turn is a derivation of HotDraw.
All contracts in the JHotDraw 7 framework are implemented against Java
Interfaces. The framework provides many points to hook in your own code.
The framework is small enough to create Java applets with it.
Abstract and Default implementations are provided to get you a quick
The framework makes use of common Java idioms, such as the JavaBeans
setter and getter methods. This is supposed to reduce your learning
The drawing code takes advantage of Java2D. It uses double precision
coordinates for all drawings.
A drawing can be shown and edited in multiple windows with different
Undo/Redo is implemented based on the Swing undo package.
Cut, Copy and Paste clipboard operations are supported.
XML is used as the default external storage format and for clipboard
JHotDraw 7 requires a J2SE 6 compliant Java Virtual Machine.