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List:       kde-core-devel
Subject:    Resize and Rotate extension / kcontrol module; new KTimerDialog class
From:       Hamish Rodda <meddie () yoyo ! cc ! monash ! edu ! au>
Date:       2002-01-23 17:36:37
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Hi,

I've done some development today that might interest a few people. Firstly, 
I've made a new Control Centre module that can take advantage of the X Resize 
and Rotate extension on any X server that provides it (note the core xf86 
server does not support this yet, you have to build the TinyX server (details 
below)). This allows you to change the size and rotation (colour depth, multi 
screen support coming soon) of a screen without restarting X... just like in 
Windows. Very neat... especially using KDE on its side. (When I get a display 
device that rotates it will actually be useful :)  Kwin needs some work to 
detect these events and appropriately resize/relocate apps, especially kicker 
and kdesktop, as you can see from the screenshots.

XRANDR extension info:
http://www.xfree86.org/~keithp/talks/randr/randr/

Source code and screen shots:
http://yoyo.cc.monash.edu.au/~meddie/patches/

Setting up a TinyX/kdrive Xfree86 server: 
http://www.pps.jussieu.fr/~jch/software/kdrive.html


At the end of this I needed a dialog box with a timer to count down 15 seconds 
to make sure the user was happy with the change, and that they can still see 
their screen.  So, I wrote a KTimerDialog class.... the code is in the same 
place as above. I'm going to put more work into this for kde 3.1, as others 
are interested in it (kpilot, atlantik so far). A screenshot of this 
(granted, without appropriate "\n" usage) is also in the screenshot directory 
above.

Once I figure out the configure addition required to detect -lXrandr I will 
add the RANDR control centre module to kdenonbeta if there are no objections.

Cheers,

Hamish
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