Add System Driver and Window Driver.

Adding two new driver types for each platform. Fl_..._System_Drivers exist once per application and provide an interface for to file and filename handling, timers, locking, multithreading, etc. .

 The Fl_..._Window_Driver class is instantiated once for every window in the system and corresponds closely to (and actually inherits from) Fl_X. The difference now is, that there is one Fl_X/Fl_Window_Driver base class, and one platform version that derives from it.

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11193 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

1 files changed, 36 insertions, 0 deletions

diff --git a/src/Fl_System_Driver.cxx b/src/Fl_System_Driver.cxx
new file mode 100644
index 000000000..8acd2d4b3
--- /dev/null
+++ b/src/Fl_System_Driver.cxx
@@ -0,0 +1,36 @@
+//
+// "$Id$"
+//
+// A base class for platform specific system calls.
+//
+// Copyright 1998-2016 by Bill Spitzak and others.
+//
+// This library is free software. Distribution and use rights are outlined in
+// the file "COPYING" which should have been included with this file.  If this
+// file is missing or damaged, see the license at:
+//
+//     http://www.fltk.org/COPYING.php
+//
+// Please report all bugs and problems on the following page:
+//
+//     http://www.fltk.org/str.php
+//
+
+
+#include "config_lib.h"
+#include <FL/Fl_System_Driver.H>
+
+
+Fl_System_Driver::Fl_System_Driver()
+{
+}
+
+
+Fl_System_Driver::~Fl_System_Driver()
+{
+}
+
+
+//
+// End of "$Id$".
+//