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Bug 733826 - Panning on a Hi-DPI screen doesn't work as expected.
Panning on a Hi-DPI screen doesn't work as expected.
Status: RESOLVED DUPLICATE of bug 730815
Product: libchamplain
Classification: Core
Component: view
unspecified
Other Linux
: Normal major
: ---
Assigned To: libchamplain-maint
libchamplain-maint
Depends on:
Blocks: 719361
 
 
Reported: 2014-07-27 16:18 UTC by Mattias Bengtsson
Modified: 2015-01-12 15:49 UTC
See Also:
GNOME target: ---
GNOME version: ---


Description Mattias Bengtsson 2014-07-27 16:18:44 UTC 
In the top-left corner panning works fine. In bottom-right it doesn't work at all. In the top-right and bottom-left it works in just one way.
Comment 1 Mattias Bengtsson 2014-07-27 16:22:38 UTC 
A pictures says more than a thousand words: 
https://www.youtube.com/watch?v=a31TsW0w7fM&feature=autoshare
Comment 2 Jiri Techet 2014-07-27 16:37:10 UTC 
Yeah, Zeeshan told me there are some problems with HiDPI and clutter-gtk which libchamplain uses. Unfortunately I don't have a good enough display to test it myself...
Comment 3 Mattias Bengtsson 2014-07-29 15:16:47 UTC 
You can do: 

 ~/champlain/demos/ $ GDK_SCALE=2 CLUTTER_SCALE=2 ./launcher-gtk

However, I'll try to see if I can get the time to debug this later.
Comment 4 Bastien Nocera 2014-09-10 11:48:53 UTC 
I can replicate this problem. I'm guessing that the mouse events aren't properly handled, and it thinks that anything outside the 1x size in pixels shouldn't be propagated.
Comment 5 Jonas Danielsson 2015-01-09 11:42:11 UTC 

*** This bug has been marked as a duplicate of bug 730815 ***
Comment 6 Jiri Techet 2015-01-10 18:05:50 UTC 
Cool, thanks for looking into this! Does your patch fix all HiDPI problems in libchamplain or are there any other problems left?
Comment 7 Jonas Danielsson 2015-01-12 07:32:11 UTC 
I do not have a Hi-DPI monitor so I am not sure :) It fixex ass that i am aware off at the moment. Mattias, any more stuff that is problematic in Champlain?
Comment 8 Mattias Bengtsson 2015-01-12 15:49:15 UTC 
No bugs / problems I guess. It would be nice to have support for Hi-DPI tilesets though. What happens with the current solution is that 256x256 tiles are scaled up to 512x512 automatically by Clutter. This works fine now (whihc is really great!), though it doesn't look very good.