initial commit

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

libs/wxWidgets-3.3.1/include/wx/msw/evtloop.h

@@ -0,0 +1,65 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        wx/msw/evtloop.h
+// Purpose:     wxEventLoop class for wxMSW port
+// Author:      Vadim Zeitlin
+// Created:     2004-07-31
+// Copyright:   (c) 2003-2004 Vadim Zeitlin <vadim@wxwidgets.org>
+// Licence:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_MSW_EVTLOOP_H_
+#define _WX_MSW_EVTLOOP_H_
+
+#include "wx/window.h"
+#include "wx/msw/evtloopconsole.h" // for wxMSWEventLoopBase
+
+// ----------------------------------------------------------------------------
+// wxEventLoop
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_CORE wxGUIEventLoop : public wxMSWEventLoopBase
+{
+public:
+    wxGUIEventLoop() = default;
+
+    // process a single message: calls PreProcessMessage() before dispatching
+    // it
+    virtual void ProcessMessage(WXMSG *msg);
+
+    // preprocess a message, return true if processed (i.e. no further
+    // dispatching required)
+    virtual bool PreProcessMessage(WXMSG *msg);
+
+    // set the critical window: this is the window such that all the events
+    // except those to this window (and its children) stop to be processed
+    // (typical examples: assert or crash report dialog)
+    //
+    // calling this function with null argument restores the normal event
+    // handling
+    static void SetCriticalWindow(wxWindowMSW *win) { ms_winCritical = win; }
+
+    // return true if there is no critical window or if this window is [a child
+    // of] the critical one
+    static bool AllowProcessing(wxWindowMSW *win)
+    {
+        return !ms_winCritical || IsChildOfCriticalWindow(win);
+    }
+
+    // override/implement base class virtuals
+    virtual bool Dispatch() override;
+    virtual int DispatchTimeout(unsigned long timeout) override;
+
+protected:
+    virtual void OnNextIteration() override;
+    virtual void DoYieldFor(long eventsToProcess) override;
+
+private:
+    // check if the given window is a child of ms_winCritical (which must be
+    // non null)
+    static bool IsChildOfCriticalWindow(wxWindowMSW *win);
+
+    // critical window or nullptr
+    static wxWindowMSW *ms_winCritical;
+};
+
+#endif // _WX_MSW_EVTLOOP_H_