File gtk3-revert-forced-xftdpi.patch of Package gtk3.21028

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File gtk3-revert-forced-xftdpi.patch of Package gtk3.21028

From: Guiseppe Bilotta
Subject: Revert "Simplify Xft setting fallback"
References: boo#1022830 fate#322401 fdo#98909 kde#367499 bmo#1269274

This patch reverts part of commit bdf0820
("Simplify Xft setting fallback") which forces the DPI to 96
instead of querying the X server for the physical screen dimensions.
This is needed for GTK applications to autodetect the DPI of
monitors and not depend on manual configuration.

Signed-off-by: Fabian Vogt <fvogt@suse.com>

gdk/x11/gdkxftdefaults.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Index: gtk+-3.20.10/gdk/x11/gdkxftdefaults.c
===================================================================
--- gtk+-3.20.10.orig/gdk/x11/gdkxftdefaults.c
+++ gtk+-3.20.10/gdk/x11/gdkxftdefaults.c
@@ -174,7 +174,8 @@ init_xft_settings (GdkScreen *screen)
     x11_screen->xft_rgba = FC_RGBA_UNKNOWN;
 
   if (!get_double_default (xdisplay, "dpi", &dpi_double))
-    dpi_double = 96.0;
+    dpi_double = (DisplayHeight(xdisplay, x11_screen->screen_num)*25.4)/
+		    DisplayHeightMM(xdisplay, x11_screen->screen_num);
 
   x11_screen->xft_dpi = (int)(0.5 + PANGO_SCALE * dpi_double);
 }

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File gtk3-revert-forced-xftdpi.patch of Package gtk3.21028

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