applications/i3
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Treat everything up to 120 dpi as 96 dpi (Thanks jefvel)

Browse Source 
See the comment in the source for rationale.
This commit is contained in:
Michael Stapelberg 2014-08-23 16:02:30 +02:00
parent 5762456d89
commit 33d1d5d3c6
1 changed files with 15 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
libi3/dpi.c
View File

@ -1,3 +1,10 @@
/*
* vim:ts=4:sw=4:expandtab
*
* i3 - an improved dynamic tiling window manager
* © 2009-2014 Michael Stapelberg and contributors (see also: LICENSE)
*
*/
#include "libi3.h" #include "libi3.h"
#include <math.h> #include <math.h>
@ -12,5 +19,13 @@ extern xcb_screen_t *root_screen;
int logical_px(const int logical) { int logical_px(const int logical) {
const int dpi = (double)root_screen->height_in_pixels * 25.4 / const int dpi = (double)root_screen->height_in_pixels * 25.4 /
(double)root_screen->height_in_millimeters; (double)root_screen->height_in_millimeters;
/* There are many misconfigurations out there, i.e. systems with screens
* whose dpi is in fact higher than 96 dpi, but not significantly higher,
* so software was never adapted. We could tell people to reconfigure their
* systems to 96 dpi in order to get the behavior they expect/are used to,
* but since we can easily detect this case in code, let’s do it for them.
*/
if ((dpi / 96.0) < 1.25)
return logical;
return ceil((dpi / 96.0) * logical); return ceil((dpi / 96.0) * logical);
} }