#ifndef _WX_MSW_EVTLOOP_H_
#define _WX_MSW_EVTLOOP_H_
+#if wxUSE_GUI
+#include "wx/dynarray.h"
+#include "wx/msw/wrapwin.h"
+#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);
+
+ // same as above but with a timeout and return value can be -1 meaning that
+ // time out expired in addition to
+ int GetNextMessageTimeout(WXMSG *msg, unsigned long timeout);
+};
+
+#if wxUSE_GUI
+
+WX_DECLARE_EXPORTED_OBJARRAY(MSG, wxMSGArray);
+
+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 int DispatchTimeout(unsigned long timeout);
+ virtual void WakeUp();
+ virtual bool YieldFor(long eventsToProcess);
protected:
- // should we exit the loop?
- bool m_shouldExit;
+ virtual void OnNextIteration();
- // the loop exit code
- int m_exitcode;
+private:
+ // check if the given window is a child of ms_winCritical (which must be
+ // non NULL)
+ static bool IsChildOfCriticalWindow(wxWindowMSW *win);
+
+ // array of messages used for temporary storage by YieldFor()
+ wxMSGArray m_arrMSG;
+
+ // 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 int DispatchTimeout(unsigned long timeout);
+ virtual void WakeUp();
+ virtual bool YieldFor(long WXUNUSED(eventsToProcess)) { return true; }
+
+ // MSW-specific function to process a single message
+ virtual void ProcessMessage(WXMSG *msg);
+};
+
+#endif // wxUSE_CONSOLE_EVENTLOOP
+
+#endif // wxUSE_GUI/!wxUSE_GUI
+
+#endif // _WX_MSW_EVTLOOP_H_