[Okular-devel] Patch to support high precision Wacom input for creating annotations

[Albert Astals Cid]

El Dijous, 11 d'octubre de 2012, a les 22:15:32, Jon Mease va escriure:
> Hello All,

Hi

>      I am interested in investing some time towards the goal of
> enhancing Okular's support for annotations.  My personal "itch", so to
> speak, is that I want to be able to use Okular for filling out forms
> and annotating scientific papers with a wacom style graphics tablet. 

Great!

> I
> currently accomplish these tasks using Xournal's PDF annotation
> features.  However Xournal doesn't have any of Okular's great features
> for navigating and searching through documents.  Plus, Xournal is not
> a KDE app :-)
> 
> As a first step, I've implemented (and attached) a patch that adds
> processing of QTabletEvents to the PageView class. Basically a tablet
> will behave exactly like a mouse except while creating an annotation.
> When creating an annotation, the higher precision position of the
> QTabletEvent is used and this results in smoother free-hand
> annotations (See the attached image for a before and after
> comparison).  With this patch in place it's possible to create a nice
> looking signature in an Okular document using a graphics tablet.

Could you please add this code to https://git.reviewboard.kde.org/ ?

It helps a lot with the reviewing and with keeping track of what is left to 
review, etc.

Welcome to the Okular development community! (we hang out in the #okular IRC 
channel in the freenode network if you are IRC oriented)

Cheers,
  Albert

> 
> I have some more thoughts on how we could enhance Okular's annotation
> handling in order to support the Xournal annotation use-case and I'd
> like to share them with you all soon. But before spending too much
> more time on this project, I wanted to get some feedback from the
> community as to whether this is a direction you all would like to see
> Okular head towards.  And if so, I would really appreciate it if
> someone was willing to mentor me along the way.

> 
> And of course, I would also appreciate feedback on this particular patch.
> Thanks a lot!
> -Jon