Added some more files

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@10726 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Julian Smart 2001-06-29 17:21:17 +00:00
parent c02ee97f96
commit 3808e19142
3 changed files with 334 additions and 0 deletions

52
include/wx/evtloop.h Normal file
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@ -0,0 +1,52 @@
///////////////////////////////////////////////////////////////////////////////
// Name: wx/evtloop.h
// Purpose: declares wxEventLoop class
// Author: Vadim Zeitlin
// Modified by:
// Created: 01.06.01
// RCS-ID: $Id$
// Copyright: (c) 2001 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#ifndef _WX_EVTLOOP_H_
#define _WX_EVTLOOP_H_
#ifdef __GNUG__
#pragma interface "evtloop.h"
#endif
// ----------------------------------------------------------------------------
// wxEventLoop: a GUI event loop
// ----------------------------------------------------------------------------
class WXDLLEXPORT wxEventLoop
{
public:
// ctor
wxEventLoop() { m_impl = NULL; }
// dtor
virtual ~wxEventLoop();
// start the event loop, return the exit code when it is finished
virtual int Run();
// exit from the loop with the given exit code
virtual void Exit(int rc = 0);
// return TRUE if any events are available
virtual bool Pending() const;
// dispatch a single event, return FALSE if we should exit from the loop
virtual bool Dispatch();
// is the event loop running now?
virtual bool IsRunning() const;
protected:
// the pointer to the port specific implementation class
class WXDLLEXPORT wxEventLoopImpl *m_impl;
};
#endif // _WX_EVTLOOP_H_

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@ -34,6 +34,8 @@
#include "wx/intl.h"
#endif
#if wxUSE_FONTDLG
#include <string.h>
#include <stdlib.h>
@ -447,4 +449,6 @@ int wxFontWeightStringToInt(wxChar *weight)
return wxNORMAL;
}
#endif
// wxUSE_FONTDLG

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