Fix: Drawing bugs on Windows at very large scales (#1144)

1 files changed, 4 insertions, 2 deletions

diff --git a/src/drivers/Cairo/Fl_Cairo_Graphics_Driver.cxx b/src/drivers/Cairo/Fl_Cairo_Graphics_Driver.cxx
index cf334b2ad..236a677b1 100644
--- a/src/drivers/Cairo/Fl_Cairo_Graphics_Driver.cxx
+++ b/src/drivers/Cairo/Fl_Cairo_Graphics_Driver.cxx
@@ -1493,7 +1493,8 @@ char Fl_Cairo_Graphics_Driver::can_do_alpha_blending() {
 float Fl_Cairo_Graphics_Driver::override_scale() {
   float s = scale();
   if (s != 1.f && Fl_Display_Device::display_device()->is_current()) {
-    scale(1);
+    cairo_scale(cairo_, 1./s, 1./s);
+    Fl_Graphics_Driver::scale(1);
   }
   return s;
 }
@@ -1501,7 +1502,8 @@ float Fl_Cairo_Graphics_Driver::override_scale() {
 
 void Fl_Cairo_Graphics_Driver::restore_scale(float s) {
   if (s != 1.f && Fl_Display_Device::display_device()->is_current()) {
-    scale(s);
+    cairo_scale(cairo_, s, s);
+    Fl_Graphics_Driver::scale(s);
   }
 }