[Lazarus] Teaching Pascal at College
mse00000 at gmail.com
Fri Oct 14 13:59:47 CEST 2016
On Friday 14 October 2016 10:50:28 Michael Schnell via Lazarus wrote:
> With a more careful design it's absolutely possible to do "non RAD"
> programs by doing "GUI units" and "business code Units" that interact
> via Objects with functions, properties and events (callback-properties) .
Separating GUI and program logic is also possible with RAD. See for example
MSEkicadBOM, the application I am currently working on.
It is a component and footprint database program for KiCad.
It consists of a datamodule with the program logic and the database and action
a mainform with the mainmenu, GUI actions and the main datagrid:
and several editforms:
The editforms inherit from a common base editform with base functionality
(datasource, navigator, timestamp display, window close logic...) and have no
or GUI-code only. The connection GUI<>datamodule is made with TDataSource,
action- and ifi-dataendpoint-components.
If done right the RAD-approach is productive and convenient, the projects are
easily extendable and maintainable.
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