DrawObjectsExtended Design Document
Contents
License 1
DrawObjectsExtended Design Overview 1
Use Cases 1
Main use cases 1
Screen copies 1
Linux Screen Copies 1
UML Design 1
Overall Structure 1
Main Classes 1
The drawing behaviour 1
DrawObjectsExtended is published under Mozilla License 1.1.
The original contributor of DrawObjects is Angus Johnson.
DrawObjectsExtended is contributed by Thierry Coq.
This document describes the design and use of the DrawObjectsExtended Component.
This component is designed for use with FPC 2.3.1 and Lazarus 0.9.29 on the Windows platform, and has been ported from Delphi. The final target is to be portable to Linux.
It allows users to make structured graphics, such as boxes and arrows linked together.
A few screen copies are presented below:
the
DrawObjectsExtended test form running under Lazarus 0.9.29beta, in
windows
Some
drawobjects, including the Composite DrawObject.
Linux
screen copy, on Ubuntu 8.04. The composite is already working.
The UML Model is implemented using ModelMaker's UML tool, version 9.
The first diagram shows the relationships between the various units, the classes and operations provided by each unit.
The second diagram shows the inheritance relationships to identify where to add additional classes, if needed.