From 3f9f4debbba0527658ce09044fbff90e332235cc Mon Sep 17 00:00:00 2001
From: Manolo Gouy <Manolo>
Date: Mon, 18 Dec 2017 08:52:55 +0000
Subject: STR#3444: Add MacOS support for application rescaling (not quite
 complete)

With this, most MacOS FLTK app can be scaled with command/+/-/0/ keystrokes.
A scaling problem remains, visible in test/cube, where the "Test" string is not positioned correctly.

GLUT apps can also be scaled (across platforms).

SVG images are re-rasterized after app scaling for optimal drawing.

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12594 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
---
 src/glut_compatibility.cxx | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/glut_compatibility.cxx')

diff --git a/src/glut_compatibility.cxx b/src/glut_compatibility.cxx
index 13e06242a..8cb268a7d 100644
--- a/src/glut_compatibility.cxx
+++ b/src/glut_compatibility.cxx
@@ -29,6 +29,7 @@
 #include "flstring.h"
 #if HAVE_GL
 #  include <FL/Fl_Gl_Window_Driver.H>
+#  include <FL/Fl_Screen_Driver.H>
 #  include <FL/glut.H>
 #  define MAXWINDOWS 32
 
@@ -130,6 +131,9 @@ int Fl_Glut_Window::handle(int event) {
     if (!keyboard && !special) break;
 
   case FL_KEYBOARD:
+      // keyboard() does not distinguish between recognized and unrecognized keystrokes
+      // so check for window scaling keystroke before normal keystroke processing
+    if ( Fl::event_command() && Fl_Screen_Driver::scale_handler(FL_SHORTCUT) ) return 1;
     if (Fl::event_text()[0]) {
       if (keyboard) {keyboard(Fl::event_text()[0],ex,ey); return 1;}
       break;
-- 
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