initial commit

Signed-off-by: Peter Siegmund <mars3142@noreply.mars3142.dev>

libs/wxWidgets-3.3.1/include/wx/wupdlock.h

@@ -0,0 +1,53 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        wx/wupdlock.h
+// Purpose:     wxWindowUpdateLocker prevents window redrawing
+// Author:      Vadim Zeitlin
+// Created:     2006-03-06
+// Copyright:   (c) 2006 Vadim Zeitlin <vadim@wxwidgets.org>
+// Licence:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_WUPDLOCK_H_
+#define _WX_WUPDLOCK_H_
+
+#include "wx/window.h"
+
+// ----------------------------------------------------------------------------
+// wxWindowUpdateLocker prevents updates to the window during its lifetime
+// ----------------------------------------------------------------------------
+
+class wxWindowUpdateLocker
+{
+public:
+    // Prefer using the ctor below if possible, this ctor is only useful if
+    // Lock() must be called only conditionally.
+    wxWindowUpdateLocker() : m_win(nullptr) { }
+
+    // create an object preventing updates of the given window (which must have
+    // a lifetime at least as great as ours)
+    explicit wxWindowUpdateLocker(wxWindow *win) : m_win(win) { win->Freeze(); }
+
+    // May be called only for the object constructed using the default ctor.
+    void Lock(wxWindow *win)
+    {
+        wxASSERT( !m_win );
+
+        m_win = win;
+        win->Freeze();
+    }
+
+    // dtor thaws the window to permit updates again
+    ~wxWindowUpdateLocker()
+    {
+        if ( m_win )
+            m_win->Thaw();
+    }
+
+private:
+    wxWindow *m_win;
+
+    wxDECLARE_NO_COPY_CLASS(wxWindowUpdateLocker);
+};
+
+#endif // _WX_WUPDLOCK_H_
+