From a97553a939b76df1564ffbfe9c919d1da5a34c5a Mon Sep 17 00:00:00 2001

From: Paul Cornett <paulcor@users.noreply.github.com>

Date: Mon, 21 Mar 2016 09:46:46 -0700

Subject: [PATCH] Avoid unresizable windows on HiDPI displays when using

 SetSizeHints()

see #17456

(cherry picked from commit 4793e5b0a4e189e492287305859b278fed780080)

---

 src/gtk/toplevel.cpp | 5 +++--

 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/gtk/toplevel.cpp b/src/gtk/toplevel.cpp

index 464fb3f..69fca2a 100644

--- a/src/gtk/toplevel.cpp

+++ b/src/gtk/toplevel.cpp

@@ -1273,8 +1273,9 @@ void wxTopLevelWindowGTK::DoSetSizeHints( int minW, int minH,

     int hints_mask = GDK_HINT_MIN_SIZE | GDK_HINT_MAX_SIZE;

     hints.min_width = 1;

     hints.min_height = 1;

-    hints.max_width = INT_MAX;

-    hints.max_height = INT_MAX;

+    // using INT_MAX for size will lead to integer overflow with HiDPI scaling

+    hints.max_width = INT_MAX / 16;

+    hints.max_height = INT_MAX / 16;

     int decorSize_x;

     int decorSize_y;

 #ifdef HAS_CLIENT_DECOR