From kde-devel  Tue Aug 19 12:37:33 2003
From: "Friedrich W. H.  Kossebau" <Friedrich.W.H () Kossebau ! de>
Date: Tue, 19 Aug 2003 12:37:33 +0000
To: kde-devel
Subject: Re: KHexEdit widget in CVS...
X-MARC-Message: https://marc.info/?l=kde-devel&m=106129702928436

Hi, back I am,

now giving more details of what I put into CVS: 
The project KHexEdit2 consists of a lib, a qt designer plugin, a kpart and an 
app. The first both are intended for inclusion in kdelibs, the latter one, 
once finished (too late for 3.2 surely), as addition/substitution in 
kdeutils. 

lib:
The lib is the main work. It offers a general usable hex edit widget KHexEdit 
that interacts with an abstract data buffer interface KDataBuffer. This 
interface can be subclassed to offer access to different data buffers like 
paged gigabyte big files, video memory or whatever you can imagine 
(hopefully). For those simply needing a widget for a plain array of bytes 
there is the widget subclass KBytesEdit, which hides the databuffer interface 
and publically simply interacts with arrays (like "char Array[25];"). 

designer plugin:
I have never used QT designer but Reinhold told me where to read about how to 
make a designer plugin. So I made one for KBytesEdit. I tested so far its 
appearance in designer (in "Views (KDE)"), using it in the layouting and 
changing its parameters. Seems to work so far :) 

kpart:
This is more of a proof of concept. And result of my first steps with KParts. 
But nevertheless usable. I still lack the understanding when to use what kind 
of KPart. Hopefully I have someone in n7y to tell me about :)

app:
Same as with the kpart. One day this shell for the hex edit kpart might 
substitute KDE's KHexEdit app of today. The reason I wrote the widget was 
that I found the actual app to be very, well, sorry about this, no offense to 
Espen Sand, wild coded, everything was strongly tied together, so I couldn't 
simply rip of the widget part. Now, having a widget, it looks very naturally 
to me to rebuild the app using the widget, not at least for coherent user gui 
experience and code reduction. But this is still work in progress. I don't 
think it will be easy to reuse the new widget in the old app, if someone just 
got the idea. This man power might be better put into the kpart :)


I will lay alll effort to the lib to finally get the editing working. Please 
test the lib (the API should be close to stable) if you are interested to 
have it included in kdelibs and tell me about. I seems I need some arguments 
to convince Stephan Kulow to put it there ;) 

Friedrich
 
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