From ec53f799a6eba3a75f900a86a0f2b32dae73f290 Mon Sep 17 00:00:00 2001
From: tanyulong2021 <tanyulong@kylinos.cn>
Date: Fri, 29 Oct 2021 10:29:09 +0800
Subject: [PATCH] add set dpi

---
 0003-add-set-dpi.patch | 52 ++++++++++++++++++++++++++++++++++++++++++
 ukui-greeter.spec      |  9 ++++++--
 2 files changed, 59 insertions(+), 2 deletions(-)
 create mode 100644 0003-add-set-dpi.patch

diff --git a/0003-add-set-dpi.patch b/0003-add-set-dpi.patch
new file mode 100644
index 0000000..72260dc
--- /dev/null
+++ b/0003-add-set-dpi.patch
@@ -0,0 +1,52 @@
+From 87ea222e7f73b2250727e827ed5d4bb002bfdc6b Mon Sep 17 00:00:00 2001
+From: tanyulong <tanyulong@kylinos.cn>
+Date: Fri, 29 Oct 2021 10:25:53 +0800
+Subject: [PATCH] add set dpi
+
+---
+ ukui-greeter/greeter/main.cpp | 20 ++++++++++++++++++++
+ 1 file changed, 20 insertions(+)
+
+diff --git a/ukui-greeter/greeter/main.cpp b/ukui-greeter/greeter/main.cpp
+index 76cfbf0..0fc09da 100755
+--- a/ukui-greeter/greeter/main.cpp
++++ b/ukui-greeter/greeter/main.cpp
+@@ -34,6 +34,7 @@
+ #include <X11/Xlib.h>
+ #include <X11/XKBlib.h>
+ #include <X11/keysym.h>
++#include <X11/Xatom.h>
+ #include <X11/cursorfont.h>
+ #include <X11/extensions/Xrandr.h>
+ #include "globalv.h"
+@@ -108,8 +109,27 @@ void x11_get_screen_size(int *width,int *height)
+ 
+ }
+ 
++void XsettingsHidpi()
++{
++    Display    *dpy;
++    int w,h;
++    x11_get_screen_size (&w, &h);
++    dpy = XOpenDisplay (NULL);
++    if(h > 2000){
++	    XChangeProperty(dpy, RootWindow (dpy, 0),
++			    XA_RESOURCE_MANAGER, XA_STRING, 8, PropModeReplace, (unsigned char *) "Xft.dpi:	192\n", 13);
++    }else{
++	    XChangeProperty(dpy, RootWindow (dpy, 0),
++			    XA_RESOURCE_MANAGER, XA_STRING, 8, PropModeReplace, (unsigned char *) "Xft.dpi:	96\n", 12);
++    }
++    XCloseDisplay (dpy);
++}
++
++
++
+ int main(int argc, char *argv[])
+ {
++    XsettingsHidpi ();
+     qInstallMessageHandler(outputMessage);
+ 
+ #if(QT_VERSION>=QT_VERSION_CHECK(5,6,0))
+-- 
+2.30.0
+
diff --git a/ukui-greeter.spec b/ukui-greeter.spec
index 185f9d4..4f3b45d 100644
--- a/ukui-greeter.spec
+++ b/ukui-greeter.spec
@@ -1,7 +1,7 @@
 %define debug_package %{nil}
 Name:           ukui-greeter
 Version:        3.0.1
-Release:        4
+Release:        5
 Summary:        Lightdm greeter for UKUI
 License:        GPL-2.0
 URL:            http://www.ukui.org
@@ -23,6 +23,7 @@ Provides: lightdm-greeter
 patch0:  0001-fix-icon-misplaced.patch
 patch1:  0002-fix-ukui-greeter-desktop-option-issue.patch
 patch2:	 0001-Avoid-problem-of-writing-Chinese-garbled-characters.patch
+patch3:  0003-add-set-dpi.patch
 
 %description
 A greeter for UKUI desktop environment written by Qt5.
@@ -33,6 +34,7 @@ A greeter for UKUI desktop environment written by Qt5.
 %patch0 -p1
 %patch1 -p1
 %patch2 -p1
+%patch3 -p1
 
 %build
 qmake-qt5
@@ -57,7 +59,10 @@ gzip  -c ukui-greeter/man/ukui-greeter.8 > %{buildroot}/usr/share/man/man8/ukui-
 %{_datadir}/xgreeters/ukui-greeter.desktop
 
 %changelog
-* Thu Oct 29 2021 tanyulong <tanyulong@kylinos.cn> - 3.0.1-4
+* Fri Oct 29 2021 tanyulong <tanyulong@kylinos.cn> - 3.0.1-5
+- add set dpi
+
+* Thu Oct 28 2021 tanyulong <tanyulong@kylinos.cn> - 3.0.1-4
 - Avoid problem of writing Chinese garbled characters in qsettings
 
 * Tue Dec 8 2020 lvhan <lvhan@kylinos.cn> - 3.0.1-3