Added some more files
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@10726 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
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include/wx/evtloop.h
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52
include/wx/evtloop.h
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///////////////////////////////////////////////////////////////////////////////
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// Name: wx/evtloop.h
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// Purpose: declares wxEventLoop class
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// Author: Vadim Zeitlin
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// Modified by:
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// Created: 01.06.01
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// RCS-ID: $Id$
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// Copyright: (c) 2001 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_EVTLOOP_H_
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#define _WX_EVTLOOP_H_
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#ifdef __GNUG__
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#pragma interface "evtloop.h"
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#endif
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// ----------------------------------------------------------------------------
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// wxEventLoop: a GUI event loop
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// ----------------------------------------------------------------------------
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class WXDLLEXPORT wxEventLoop
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{
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public:
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// ctor
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wxEventLoop() { m_impl = NULL; }
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// dtor
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virtual ~wxEventLoop();
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// start the event loop, return the exit code when it is finished
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virtual int Run();
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// exit from the loop with the given exit code
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virtual void Exit(int rc = 0);
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// return TRUE if any events are available
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virtual bool Pending() const;
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// dispatch a single event, return FALSE if we should exit from the loop
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virtual bool Dispatch();
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// is the event loop running now?
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virtual bool IsRunning() const;
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protected:
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// the pointer to the port specific implementation class
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class WXDLLEXPORT wxEventLoopImpl *m_impl;
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};
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#endif // _WX_EVTLOOP_H_
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@ -34,6 +34,8 @@
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#include "wx/intl.h"
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#endif
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#if wxUSE_FONTDLG
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#include <string.h>
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#include <stdlib.h>
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@ -447,4 +449,6 @@ int wxFontWeightStringToInt(wxChar *weight)
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return wxNORMAL;
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}
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#endif
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// wxUSE_FONTDLG
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278
src/msw/evtloop.cpp
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278
src/msw/evtloop.cpp
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///////////////////////////////////////////////////////////////////////////////
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// Name: msw/evtloop.cpp
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// Purpose: implements wxEventLoop for MSW
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// Author: Vadim Zeitlin
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// Modified by:
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// Created: 01.06.01
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// RCS-ID: $Id$
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// Copyright: (c) 2001 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
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// License: wxWindows license
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///////////////////////////////////////////////////////////////////////////////
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// ============================================================================
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// declarations
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// ============================================================================
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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#ifdef __GNUG__
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#pragma implementation "evtloop.h"
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#endif
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#ifndef WX_PRECOMP
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#endif //WX_PRECOMP
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#include "wx/evtloop.h"
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#include "wx/msw/private.h"
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// ----------------------------------------------------------------------------
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// wxEventLoopImpl
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// ----------------------------------------------------------------------------
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class WXDLLEXPORT wxEventLoopImpl
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{
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public:
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// ctor
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wxEventLoopImpl() { SetExitCode(0); }
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// process a message
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void ProcessMessage(MSG *msg);
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// generate an idle message, return TRUE if more idle time requested
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bool SendIdleMessage();
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// set/get the exit code
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void SetExitCode(int exitcode) { m_exitcode = exitcode; }
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int GetExitCode() const { return m_exitcode; }
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private:
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// preprocess a message, return TRUE if processed (i.e. no further
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// dispatching required)
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bool PreProcessMessage(MSG *msg);
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// the exit code of the event loop
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int m_exitcode;
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};
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// ============================================================================
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// wxEventLoopImpl implementation
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// ============================================================================
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// ----------------------------------------------------------------------------
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// wxEventLoopImpl message processing
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// ----------------------------------------------------------------------------
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void wxEventLoopImpl::ProcessMessage(MSG *msg)
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{
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// give us the chance to preprocess the message first
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if ( !PreProcessMessage(msg) )
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{
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// if it wasn't done, dispatch it to the corresponding window
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::TranslateMessage(msg);
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::DispatchMessage(msg);
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}
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}
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bool wxEventLoopImpl::PreProcessMessage(MSG *msg)
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{
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HWND hWnd = msg->hwnd;
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wxWindow *wndThis = wxGetWindowFromHWND((WXHWND)hWnd);
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#if wxUSE_TOOLTIPS
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// we must relay WM_MOUSEMOVE events to the tooltip ctrl if we want it to
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// popup the tooltip bubbles
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if ( wndThis && (msg->message == WM_MOUSEMOVE) )
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{
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wxToolTip *tt = wndThis->GetToolTip();
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if ( tt )
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{
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tt->RelayEvent((WXMSG *)msg);
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}
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}
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#endif // wxUSE_TOOLTIPS
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// try translations first; find the youngest window with a translation
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// table.
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wxWindow *wnd;
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for ( wnd = wndThis; wnd; wnd = wnd->GetParent() )
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{
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if ( wnd->MSWTranslateMessage((WXMSG *)msg) )
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return TRUE;
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}
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// Anyone for a non-translation message? Try youngest descendants first.
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for ( wnd = wndThis; wnd; wnd = wnd->GetParent() )
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{
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if ( wnd->MSWProcessMessage((WXMSG *)msg) )
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return TRUE;
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}
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return FALSE;
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}
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// ----------------------------------------------------------------------------
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// wxEventLoopImpl idle event processing
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// ----------------------------------------------------------------------------
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bool wxEventLoopImpl::SendIdleMessage()
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{
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wxIdleEvent event;
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return wxTheApp->ProcessEvent(event) && event.MoreRequested();
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}
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// ============================================================================
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// wxEventLoop implementation
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// ============================================================================
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// ----------------------------------------------------------------------------
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// wxEventLoop running and exiting
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// ----------------------------------------------------------------------------
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wxEventLoop::~wxEventLoop()
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{
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wxASSERT_MSG( !m_impl, _T("should have been deleted in Run()") );
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}
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bool wxEventLoop::IsRunning() const
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{
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return m_impl != NULL;
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}
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int wxEventLoop::Run()
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{
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// event loops are not recursive, you need to create another loop!
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wxCHECK_MSG( !IsRunning(), -1, _T("can't reenter a message loop") );
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m_impl = new wxEventLoopImpl;
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for ( ;; )
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{
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#if wxUSE_THREADS
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wxMutexGuiLeaveOrEnter();
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#endif // wxUSE_THREADS
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// generate and process idle events for as long as we don't have
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// anything else to do
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while ( !Pending() && m_impl->SendIdleMessage() )
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;
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// a message came or no more idle processing to do, sit in Dispatch()
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// waiting for the next message
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if ( !Dispatch() )
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{
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// we got WM_QUIT
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break;
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}
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}
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int exitcode = m_impl->GetExitCode();
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delete m_impl;
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m_impl = NULL;
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return exitcode;
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}
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void wxEventLoop::Exit(int rc)
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{
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wxCHECK_RET( IsRunning(), _T("can't call Exit() if not running") );
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m_impl->SetExitCode(rc);
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::PostQuitMessage(rc);
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}
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// ----------------------------------------------------------------------------
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// wxEventLoop message processing dispatching
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// ----------------------------------------------------------------------------
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bool wxEventLoop::Pending() const
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{
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MSG msg;
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return ::PeekMessage(&msg, 0, 0, 0, PM_NOREMOVE) != 0;
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}
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bool wxEventLoop::Dispatch()
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{
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wxCHECK_MSG( IsRunning(), FALSE, _T("can't call Dispatch() if not running") );
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MSG msg;
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BOOL rc = ::GetMessage(&msg, (HWND) NULL, 0, 0);
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if ( rc == 0 )
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{
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// got WM_QUIT
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return FALSE;
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}
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if ( rc == -1 )
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{
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// should never happen, but let's test for it nevertheless
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wxLogLastError(wxT("GetMessage"));
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// still break from the loop
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return FALSE;
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}
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#if wxUSE_THREADS
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wxASSERT_MSG( wxThread::IsMain(),
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wxT("only the main thread can process Windows messages") );
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static bool s_hadGuiLock = TRUE;
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static wxMsgArray s_aSavedMessages;
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// if a secondary thread owning the mutex is doing GUI calls, save all
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// messages for later processing - we can't process them right now because
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// it will lead to recursive library calls (and we're not reentrant)
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if ( !wxGuiOwnedByMainThread() )
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{
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s_hadGuiLock = FALSE;
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// leave out WM_COMMAND messages: too dangerous, sometimes
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// the message will be processed twice
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if ( !wxIsWaitingForThread() ||
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s_currentMsg.message != WM_COMMAND )
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{
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s_aSavedMessages.Add(s_currentMsg);
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}
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return TRUE;
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}
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else
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{
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// have we just regained the GUI lock? if so, post all of the saved
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// messages
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//
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// FIXME of course, it's not _exactly_ the same as processing the
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// messages normally - expect some things to break...
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if ( !s_hadGuiLock )
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{
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s_hadGuiLock = TRUE;
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size_t count = s_aSavedMessages.Count();
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for ( size_t n = 0; n < count; n++ )
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{
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MSG& msg = s_aSavedMessages[n];
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m_impl->ProcessMessage(&msg);
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}
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s_aSavedMessages.Empty();
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}
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}
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#endif // wxUSE_THREADS
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m_impl->ProcessMessage(&msg);
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return TRUE;
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}
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