[PULL 2/8] ui: fix incorrect pointer position on highdpi with gtk

[Gerd Hoffmann]

From: Alexander Orzechowski <orzechowski.alexander@gmail.com>

Signed-off-by: Alexander Orzechowski <orzechowski.alexander@gmail.com>
Message-Id: <20211121065504.29101-3-orzechowski.alexander@gmail.com>

[ kraxel: codestyle fix ]

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 ui/gtk.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/ui/gtk.c b/ui/gtk.c
index d2892ea6b4a9..dc4a1491f0ce 100644
--- a/ui/gtk.c
+++ b/ui/gtk.c
@@ -838,10 +838,11 @@ static gboolean gd_motion_event(GtkWidget *widget, 
GdkEventMotion *motion,
 {
     VirtualConsole *vc = opaque;
     GtkDisplayState *s = vc->s;
+    GdkWindow *window;
     int x, y;
     int mx, my;
     int fbh, fbw;
-    int ww, wh;
+    int ww, wh, ws;
 
     if (!vc->gfx.ds) {
         return TRUE;
@@ -850,8 +851,10 @@ static gboolean gd_motion_event(GtkWidget *widget, 
GdkEventMotion *motion,
     fbw = surface_width(vc->gfx.ds) * vc->gfx.scale_x;
     fbh = surface_height(vc->gfx.ds) * vc->gfx.scale_y;
 
-    ww = gdk_window_get_width(gtk_widget_get_window(vc->gfx.drawing_area));
-    wh = gdk_window_get_height(gtk_widget_get_window(vc->gfx.drawing_area));
+    window = gtk_widget_get_window(vc->gfx.drawing_area);
+    ww = gdk_window_get_width(window);
+    wh = gdk_window_get_height(window);
+    ws = gdk_window_get_scale_factor(window);
 
     mx = my = 0;
     if (ww > fbw) {
@@ -861,8 +864,8 @@ static gboolean gd_motion_event(GtkWidget *widget, 
GdkEventMotion *motion,
         my = (wh - fbh) / 2;
     }
 
-    x = (motion->x - mx) / vc->gfx.scale_x;
-    y = (motion->y - my) / vc->gfx.scale_y;
+    x = (motion->x - mx) / vc->gfx.scale_x * ws;
+    y = (motion->y - my) / vc->gfx.scale_y * ws;
 
     if (qemu_input_is_absolute()) {
         if (x < 0 || y < 0 ||
-- 
2.33.1