Accepting request 442939 from Virtualization

Add support for HiDPI in the management frontend

  This does not fix rendering in guest windows
  https://doc.qt.io/qt-5/qpainter.html#drawing-high-resolution-versions-of-pixmaps-and-images (forwarded request 442920 from gladiac)

OBS-URL: https://build.opensuse.org/request/show/442939
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/virtualbox?expand=0&rev=124

vbox_hidpi_support.patch

@@ -0,0 +1,30 @@
+Index: VirtualBox-5.1.10/src/VBox/Frontends/VirtualBox/src/main.cpp
+===================================================================
+--- VirtualBox-5.1.10.orig/src/VBox/Frontends/VirtualBox/src/main.cpp	2016-11-21 18:31:06.000000000 +0100
++++ VirtualBox-5.1.10/src/VBox/Frontends/VirtualBox/src/main.cpp	2016-11-30 14:04:31.028269344 +0100
+@@ -446,6 +446,12 @@ extern "C" DECLEXPORT(int) TrustedMain(i
+         qInstallMsgHandler(QtMessageOutput);
+ #endif /* QT_VERSION < 0x050000 */
+ 
++#if QT_VERSION >= 0x050600
++        QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
++#endif
++#if QT_VERSION >= 0x050700
++        QCoreApplication::setAttribute(Qt::AA_UseHighDpiPixmaps);
++#endif
+         /* Create application: */
+         QApplication a(argc, argv);
+ 
+@@ -603,6 +609,12 @@ int main(int argc, char **argv, char **e
+     /* Initialization failed: */
+     if (RT_FAILURE(rc))
+     {
++#if QT_VERSION >= 0x050600
++        QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
++#endif
++#if QT_VERSION >= 0x050700
++        QCoreApplication::setAttribute(Qt::AA_UseHighDpiPixmaps);
++#endif
+         /* We have to create QApplication anyway
+          * just to show the only one error-message: */
+         QApplication a(argc, &argv[0]);

virtualbox.changes

@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Wed Nov 30 16:45:43 UTC 2016 - asn@cryptomilk.org
+
+- Add patch file "vbox_hidpi_support.patch" to add support for HiDPI in the
+  management frontend.
+  (This does not fix rendering in guest windows)
+
 -------------------------------------------------------------------
 Mon Nov 21 22:43:33 UTC 2016 - Larry.Finger@lwfinger.net
 

virtualbox.spec

@@ -90,6 +90,8 @@ Patch112:       modify_for_4_8_bo_move.patch
 Patch113:       vbox_remove_smp_mflags.patch
 # Fix build error on kernel 4.9
 Patch114:       vbox_fix_4.9_api_changes.patch
+# Add support for HiDPI in the management frontend
+Patch115:       vbox_hidpi_support.patch
 #
 BuildRequires:  LibVNCServer-devel
 BuildRequires:  SDL-devel
@@ -325,6 +327,7 @@ This package contains icons for guest desktop files that were created on the des
 %patch112 -p1
 %patch113 -p1
 %patch114 -p1
+%patch115 -p1
 
 #copy user manual
 cp %{SOURCE1} UserManual.pdf