NAME

       Unidraw_Intro - Unidraw library for graphical object editor development

SYNOPSIS

       #include <Unidraw/class.h>
       #include <Unidraw/Components/class.h>
       #include <Unidraw/Commands/class.h>
       #include <Unidraw/Tools/class.h>
       #include <Unidraw/Graphic/class.h>

       CC ... -lUnidraw ... -lInterViews -lX -lm

DESCRIPTION

       Unidraw  is  an  architecture for creating object-oriented graphical editors in domains such as technical
       and artistic drawing, music composition, and circuit design.  Unidraw simpifies the construction of these
       editors by providing programming abstractions that are common across domains.  Unidraw defines four basic
       abstractions: components encapsulate the appearance and semantics of objects in a domain,  tools  support
       direct  manipulation  of  components,  commands  define  operations  on components and other objects, and
       external representations define the mapping between components and  the  file  format  generated  by  the
       editor.   Unidraw  also  supports  multiple  views,  graphical connectivity and confinement, and dataflow
       between components.

       The Unidraw library contains a collection of  classes  that  implement  the  Unidraw  architecture.   The
       Unidraw  library  is  used  together  with the rest of InterViews, except the graphic structured graphics
       library, to develop domain-specific graphical object editors.   InterViews  interactors  and  composition
       mechanisms  support  an  application's  look  and  feel, while the Unidraw library supports functionality
       unique to graphical object editors.  Currently, the Unidraw library provides its own structured  graphics
       classes,  which are similar to but incompatible with the graphic library classes.  Therefore you must not
       use both graphic and Unidraw classes in the same application.

       General Unidraw classes are declared in header files in the Unidraw include file subdirectory. Component,
       command,  tool,  and  structured  graphics classes are declared in corresponding subdirectories under the
       Unidraw subdirectory.

SEE ALSO

       InterViews(3I)

       Generalized Graphical Object  Editing,  John  M.  Vlissides,  Technical  Report  CSL-TR-90-427,  Stanford
       University, June 1990.