position the popup on the correct screen (see #10462)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@58592 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/popupcmn.cpp

@@ -34,6 +34,7 @@
     #include "wx/log.h"
 #endif //WX_PRECOMP
 
+#include "wx/display.h"
 #include "wx/recguard.h"
 
 #ifdef __WXUNIVERSAL__
@@ -134,8 +135,26 @@ bool wxPopupWindowBase::Create(wxWindow* WXUNUSED(parent), int WXUNUSED(flags))
 void wxPopupWindowBase::Position(const wxPoint& ptOrigin,
                                  const wxSize& size)
 {
-    wxSize sizeScreen = wxGetDisplaySize(),
+    // determine the position and size of the screen we clamp the popup to
-           sizeSelf = GetSize();
+    wxPoint posScreen;
+    wxSize sizeScreen;
+
+    const int displayNum = wxDisplay::GetFromPoint(ptOrigin);
+    if ( displayNum != wxNOT_FOUND )
+    {
+        const wxRect rectScreen = wxDisplay(displayNum).GetGeometry();
+        posScreen = rectScreen.GetPosition();
+        sizeScreen = rectScreen.GetSize();
+    }
+    else // outside of any display?
+    {
+        // just use the primary one then
+        posScreen = wxPoint(0, 0);
+        sizeScreen = wxGetDisplaySize();
+    }
+
+
+    const wxSize sizeSelf = GetSize();
 
     // is there enough space to put the popup below the window (where we put it
     // by default)?