extracted the part of ProcessEvent() which is repeated multiple times during the...

[wxWidgets.git] / include / wx / msw / evtloop.h

diff --git a/include/wx/msw/evtloop.h b/include/wx/msw/evtloop.h
index f3ccdaefbef586db05854d4308753a74941f4cf9..fd548b87f25aa3bf6fada941a6e954a182010e58 100644 (file)
--- a/include/wx/msw/evtloop.h
+++ b/include/wx/msw/evtloop.h
@@ -12,39 +12,94 @@
 #ifndef _WX_MSW_EVTLOOP_H_
 #define _WX_MSW_EVTLOOP_H_
 
+#if wxUSE_GUI
+#include "wx/window.h"
+#endif
+
 // ----------------------------------------------------------------------------
 // wxEventLoop
 // ----------------------------------------------------------------------------
 
-class WXDLLEXPORT wxEventLoop : public wxEventLoopBase
+class WXDLLIMPEXP_BASE wxMSWEventLoopBase : public wxEventLoopManual
 {
 public:
-    wxEventLoop();
+    wxMSWEventLoopBase();
 
     // implement base class pure virtuals
-    virtual int Run();
-    virtual void Exit(int rc = 0);
     virtual bool Pending() const;
-    virtual bool Dispatch();
-    virtual bool IsRunning() const;
 
-    // MSW-specific methods
-    // --------------------
+protected:
+    // get the next message from queue and return true or return false if we
+    // got WM_QUIT or an error occurred
+    bool GetNextMessage(WXMSG *msg);
+};
+
+#if wxUSE_GUI
+
+class WXDLLIMPEXP_CORE wxGUIEventLoop : public wxMSWEventLoopBase
+{
+public:
+    wxGUIEventLoop() { }
+
+    // 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);
 
-    // process a single message
-    virtual void ProcessMessage(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();
+    virtual void WakeUp();
 
 protected:
-    // should we exit the loop?
-    bool m_shouldExit;
+    virtual void OnNextIteration();
+
+private:
+    // check if the given window is a child of ms_winCritical (which must be
+    // non NULL)
+    static bool IsChildOfCriticalWindow(wxWindowMSW *win);
 
-    // the loop exit code
-    int m_exitcode;
+
+    // critical window or NULL
+    static wxWindowMSW *ms_winCritical;
 };
 
-#endif // _WX_MSW_EVTLOOP_H_
+#else // !wxUSE_GUI
+
+#if wxUSE_CONSOLE_EVENTLOOP
+
+class WXDLLIMPEXP_BASE wxConsoleEventLoop : public wxMSWEventLoopBase
+{
+public:
+    wxConsoleEventLoop() { }
+
+    // override/implement base class virtuals
+    virtual bool Dispatch();
+    virtual void WakeUp();
+
+protected:
+    virtual void OnNextIteration();
+};
 
+#endif // wxUSE_CONSOLE_EVENTLOOP
+
+#endif // wxUSE_GUI/!wxUSE_GUI
+
+#endif // _WX_MSW_EVTLOOP_H_