UnidrawIntro(3U)					    InterViews Reference Manual 					  UnidrawIntro(3U)

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 composi-
       tion, 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 sup-
       port 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 incompati-
       ble 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.

Unidraw 							   11 June 1990 						  UnidrawIntro(3U)