Amebis/wxWidgets
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
d88de032d3009be88d0f0ba4a882784aa9493331
wxWidgets/src/os2/app.cpp
David Webster d88de032d3 Latest Updates 
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@3974 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
1999-10-13 22:34:18 +00:00

1110 lines
29 KiB
C++
Raw Blame History

/////////////////////////////////////////////////////////////////////////////
// Name: app.cpp
// Purpose: wxApp
// Author: David Webster
// Modified by:
// Created: 10/13/99
// RCS-ID: $Id$
// Copyright: (c) David Webster
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifndef WX_PRECOMP
#include "wx/frame.h"
#include "wx/app.h"
#include "wx/utils.h"
#include "wx/gdicmn.h"
#include "wx/pen.h"
#include "wx/brush.h"
#include "wx/cursor.h"
#include "wx/icon.h"
#include "wx/palette.h"
#include "wx/dc.h"
#include "wx/dialog.h"
#include "wx/msgdlg.h"
#include "wx/intl.h"
#include "wx/dynarray.h"
# include "wx/wxchar.h"
# include "wx/icon.h"
#endif
#include "wx/log.h"
#include "wx/module.h"
#include "wx/os2/private.h"
#if wxUSE_THREADS
#include "wx/thread.h"
// define the array of MSG strutures
// TODO: WX_DECLARE_OBJARRAY(MSG, wxMsgArray);
#include "wx/arrimpl.cpp"
// TODO: WX_DEFINE_OBJARRAY(wxMsgArray);
#endif // wxUSE_THREADS
#if wxUSE_WX_RESOURCES
#include "wx/resource.h"
#endif
#include <string.h>
#include <ctype.h>
// ---------------------------------------------------------------------------
// global variables
// ---------------------------------------------------------------------------
extern wxChar *wxBuffer;
extern wxChar *wxOsVersion;
extern wxList *wxWinHandleList;
extern wxList WXDLLEXPORT wxPendingDelete;
#if wxUSE_THREADS
extern wxList *wxPendingEvents;
extern wxCriticalSection *wxPendingEventsLocker;
#endif
extern void wxSetKeyboardHook(bool doIt);
extern wxCursor *g_globalCursor;
HINSTANCE wxhInstance = 0;
// TODO: MSG s_currentMsg;
wxApp *wxTheApp = NULL;
// FIXME why not const? and not static?
// NB: all "NoRedraw" classes must have the same names as the "normal" classes
// with NR suffix - wxWindow::MSWCreate() supposes this
wxChar wxFrameClassName[] = wxT("wxFrameClass");
wxChar wxFrameClassNameNoRedraw[] = wxT("wxFrameClassNR");
wxChar wxMDIFrameClassName[] = wxT("wxMDIFrameClass");
wxChar wxMDIFrameClassNameNoRedraw[] = wxT("wxMDIFrameClassNR");
wxChar wxMDIChildFrameClassName[] = wxT("wxMDIChildFrameClass");
wxChar wxMDIChildFrameClassNameNoRedraw[] = wxT("wxMDIChildFrameClassNR");
wxChar wxPanelClassName[] = wxT("wxPanelClass");
wxChar wxCanvasClassName[] = wxT("wxCanvasClass");
HICON wxSTD_FRAME_ICON = (HICON) NULL;
HICON wxSTD_MDICHILDFRAME_ICON = (HICON) NULL;
HICON wxSTD_MDIPARENTFRAME_ICON = (HICON) NULL;
HICON wxDEFAULT_FRAME_ICON = (HICON) NULL;
HICON wxDEFAULT_MDICHILDFRAME_ICON = (HICON) NULL;
HICON wxDEFAULT_MDIPARENTFRAME_ICON = (HICON) NULL;
HBRUSH wxDisableButtonBrush = (HBRUSH) 0;
MRESULT wxWndProc(HWND, UINT, MPARAM, MPARAM);
// ===========================================================================
// implementation
// ===========================================================================
// ---------------------------------------------------------------------------
// wxApp
// ---------------------------------------------------------------------------
#if !USE_SHARED_LIBRARY
IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler)
BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
EVT_IDLE(wxApp::OnIdle)
EVT_END_SESSION(wxApp::OnEndSession)
EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession)
END_EVENT_TABLE()
#endif
//// Initialize
bool wxApp::Initialize()
{
// Some people may wish to use this, but
// probably it shouldn't be here by default.
#ifdef __WXDEBUG__
// wxRedirectIOToConsole();
#endif
wxBuffer = new wxChar[1500]; // FIXME
wxClassInfo::InitializeClasses();
#if wxUSE_RESOURCES
wxGetResource(wxT("wxWindows"), wxT("OsVersion"), &wxOsVersion);
#endif
// I'm annoyed ... I don't know where to put this and I don't want to
// create a module for that as it's part of the core.
#if wxUSE_THREADS
wxPendingEvents = new wxList();
wxPendingEventsLocker = new wxCriticalSection();
#endif
wxTheColourDatabase = new wxColourDatabase(wxKEY_STRING);
wxTheColourDatabase->Initialize();
wxInitializeStockLists();
wxInitializeStockObjects();
#if wxUSE_WX_RESOURCES
wxInitializeResourceSystem();
#endif
wxBitmap::InitStandardHandlers();
g_globalCursor = new wxCursor;
// TODO:
/*
wxSTD_FRAME_ICON = LoadIcon(wxhInstance, wxT("wxSTD_FRAME"));
wxSTD_MDIPARENTFRAME_ICON = LoadIcon(wxhInstance, wxT("wxSTD_MDIPARENTFRAME"));
wxSTD_MDICHILDFRAME_ICON = LoadIcon(wxhInstance, wxT("wxSTD_MDICHILDFRAME"));
wxDEFAULT_FRAME_ICON = LoadIcon(wxhInstance, wxT("wxDEFAULT_FRAME"));
wxDEFAULT_MDIPARENTFRAME_ICON = LoadIcon(wxhInstance, wxT("wxDEFAULT_MDIPARENTFRAME"));
wxDEFAULT_MDICHILDFRAME_ICON = LoadIcon(wxhInstance, wxT("wxDEFAULT_MDICHILDFRAME"));
*/
RegisterWindowClasses();
// Create the brush for disabling bitmap buttons
// TODO:
/*
LOGBRUSH lb;
lb.lbStyle = BS_PATTERN;
lb.lbHatch = (int)LoadBitmap( wxhInstance, wxT("wxDISABLE_BUTTON_BITMAP") );
if ( lb.lbHatch )
{
wxDisableButtonBrush = ::CreateBrushIndirect( & lb );
::DeleteObject( (HGDIOBJ)lb.lbHatch );
}
*/
//else: wxWindows resources are probably not linked in
wxWinHandleList = new wxList(wxKEY_INTEGER);
// This is to foil optimizations in Visual C++ that throw out dummy.obj.
// PLEASE DO NOT ALTER THIS.
#if !defined(WXMAKINGDLL)
extern char wxDummyChar;
if (wxDummyChar) wxDummyChar++;
#endif
wxSetKeyboardHook(TRUE);
wxModule::RegisterModules();
if (!wxModule::InitializeModules())
return FALSE;
return TRUE;
}
// ---------------------------------------------------------------------------
// RegisterWindowClasses
// ---------------------------------------------------------------------------
// TODO we should only register classes really used by the app. For this it
// would be enough to just delay the class registration until an attempt
// to create a window of this class is made.
bool wxApp::RegisterWindowClasses()
{
// TODO:
/*
WNDCLASS wndclass;
// for each class we register one with CS_(V|H)REDRAW style and one
// without for windows created with wxNO_FULL_REDRAW_ON_REPAINT flag
static const long styleNormal = 0; // TODO: CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS;
static const long styleNoRedraw = 0; // TODO: CS_DBLCLKS;
// the fields which are common to all classes
wndclass.lpfnWndProc = (WNDPROC)wxWndProc;
wndclass.cbClsExtra = 0;
wndclass.cbWndExtra = sizeof( DWORD ); // VZ: what is this DWORD used for?
wndclass.hInstance = wxhInstance;
wndclass.hIcon = (HICON) NULL;
wndclass.hCursor = 0; // TODO: ::LoadCursor((HINSTANCE)NULL, IDC_ARROW);
wndclass.lpszMenuName = NULL;
// Register the frame window class.
wndclass.hbrBackground = (HBRUSH)(COLOR_APPWORKSPACE + 1);
wndclass.lpszClassName = wxFrameClassName;
wndclass.style = styleNormal;
if ( !RegisterClass(&wndclass) )
{
wxLogLastError("RegisterClass(frame)");
return FALSE;
}
// "no redraw" frame
wndclass.lpszClassName = wxFrameClassNameNoRedraw;
wndclass.style = styleNoRedraw;
if ( !RegisterClass(&wndclass) )
{
wxLogLastError("RegisterClass(no redraw frame)");
return FALSE;
}
// Register the MDI frame window class.
wndclass.hbrBackground = (HBRUSH)NULL; // paint MDI frame ourselves
wndclass.lpszClassName = wxMDIFrameClassName;
wndclass.style = styleNormal;
if ( !RegisterClass(&wndclass) )
{
wxLogLastError("RegisterClass(MDI parent)");
return FALSE;
}
// "no redraw" MDI frame
wndclass.lpszClassName = wxMDIFrameClassNameNoRedraw;
wndclass.style = styleNoRedraw;
if ( !RegisterClass(&wndclass) )
{
wxLogLastError("RegisterClass(no redraw MDI parent frame)");
return FALSE;
}
// Register the MDI child frame window class.
wndclass.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
wndclass.lpszClassName = wxMDIChildFrameClassName;
wndclass.style = styleNormal;
if ( !RegisterClass(&wndclass) )
{
wxLogLastError("RegisterClass(MDI child)");
return FALSE;
}
// "no redraw" MDI child frame
wndclass.lpszClassName = wxMDIChildFrameClassNameNoRedraw;
wndclass.style = styleNoRedraw;
if ( !RegisterClass(&wndclass) )
{
wxLogLastError("RegisterClass(no redraw MDI child)");
return FALSE;
}
// Register the panel window class.
wndclass.hbrBackground = (HBRUSH) GetStockObject( LTGRAY_BRUSH );
wndclass.lpszClassName = wxPanelClassName;
wndclass.style = styleNormal;
if ( !RegisterClass(&wndclass) )
{
wxLogLastError("RegisterClass(panel)");
return FALSE;
}
// Register the canvas and textsubwindow class name
wndclass.hbrBackground = (HBRUSH)NULL;
wndclass.lpszClassName = wxCanvasClassName;
if ( !RegisterClass(&wndclass) )
{
wxLogLastError("RegisterClass(canvas)");
return FALSE;
}
*/
return TRUE;
}
// ---------------------------------------------------------------------------
// Convert Windows to argc, argv style
// ---------------------------------------------------------------------------
void wxApp::ConvertToStandardCommandArgs(char* lpCmdLine)
{
wxStringList args;
wxString cmdLine(lpCmdLine);
int count = 0;
// Get application name
wxChar name[260]; // 260 is MAX_PATH value from windef.h
// TODO: ::GetModuleFileName(wxhInstance, name, WXSIZEOF(name));
args.Add(name);
count++;
wxStrcpy(name, wxFileNameFromPath(name));
wxStripExtension(name);
wxTheApp->SetAppName(name);
// Break up string
// Treat strings enclosed in double-quotes as single arguments
int i = 0;
int len = cmdLine.Length();
while (i < len)
{
// Skip whitespace
while ((i < len) && wxIsspace(cmdLine.GetChar(i)))
i ++;
if (i < len)
{
if (cmdLine.GetChar(i) == wxT('"')) // We found the start of a string
{
i ++;
int first = i;
while ((i < len) && (cmdLine.GetChar(i) != wxT('"')))
i ++;
wxString arg(cmdLine.Mid(first, (i - first)));
args.Add(arg);
count ++;
if (i < len)
i ++; // Skip past 2nd quote
}
else // Unquoted argument
{
int first = i;
while ((i < len) && !wxIsspace(cmdLine.GetChar(i)))
i ++;
wxString arg(cmdLine.Mid(first, (i - first)));
args.Add(arg);
count ++;
}
}
}
wxTheApp->argv = new wxChar*[count + 1];
for (i = 0; i < count; i++)
{
wxString arg(args[i]);
wxTheApp->argv[i] = copystring((const wxChar*)arg);
}
wxTheApp->argv[count] = NULL; // argv[] is a NULL-terminated list
wxTheApp->argc = count;
}
//// Cleans up any wxWindows internal structures left lying around
void wxApp::CleanUp()
{
//// COMMON CLEANUP
#if wxUSE_LOG
// flush the logged messages if any and install a 'safer' log target: the
// default one (wxLogGui) can't be used after the resources are freed just
// below and the user suppliedo ne might be even more unsafe (using any
// wxWindows GUI function is unsafe starting from now)
wxLog::DontCreateOnDemand();
// this will flush the old messages if any
delete wxLog::SetActiveTarget(new wxLogStderr);
#endif // wxUSE_LOG
// One last chance for pending objects to be cleaned up
wxTheApp->DeletePendingObjects();
wxModule::CleanUpModules();
#if wxUSE_WX_RESOURCES
wxCleanUpResourceSystem();
// wxDefaultResourceTable->ClearTable();
#endif
// Indicate that the cursor can be freed, so that cursor won't be deleted
// by deleting the bitmap list before g_globalCursor goes out of scope
// (double deletion of the cursor).
wxSetCursor(wxNullCursor);
delete g_globalCursor;
g_globalCursor = NULL;
wxDeleteStockObjects();
// Destroy all GDI lists, etc.
wxDeleteStockLists();
delete wxTheColourDatabase;
wxTheColourDatabase = NULL;
wxBitmap::CleanUpHandlers();
delete[] wxBuffer;
wxBuffer = NULL;
//// WINDOWS-SPECIFIC CLEANUP
wxSetKeyboardHook(FALSE);
// TODO:
/*
if (wxSTD_FRAME_ICON)
DestroyIcon(wxSTD_FRAME_ICON);
if (wxSTD_MDICHILDFRAME_ICON)
DestroyIcon(wxSTD_MDICHILDFRAME_ICON);
if (wxSTD_MDIPARENTFRAME_ICON)
DestroyIcon(wxSTD_MDIPARENTFRAME_ICON);
if (wxDEFAULT_FRAME_ICON)
DestroyIcon(wxDEFAULT_FRAME_ICON);
if (wxDEFAULT_MDICHILDFRAME_ICON)
DestroyIcon(wxDEFAULT_MDICHILDFRAME_ICON);
if (wxDEFAULT_MDIPARENTFRAME_ICON)
DestroyIcon(wxDEFAULT_MDIPARENTFRAME_ICON);
*/
if ( wxDisableButtonBrush )
{
// TODO: ::DeleteObject( wxDisableButtonBrush );
}
if (wxWinHandleList)
delete wxWinHandleList;
// GL: I'm annoyed ... I don't know where to put this and I don't want to
// create a module for that as it's part of the core.
#if wxUSE_THREADS
delete wxPendingEvents;
delete wxPendingEventsLocker;
// If we don't do the following, we get an apparent memory leak.
((wxEvtHandler&) wxDefaultValidator).ClearEventLocker();
#endif
wxClassInfo::CleanUpClasses();
delete wxTheApp;
wxTheApp = NULL;
#if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
// At this point we want to check if there are any memory
// blocks that aren't part of the wxDebugContext itself,
// as a special case. Then when dumping we need to ignore
// wxDebugContext, too.
if (wxDebugContext::CountObjectsLeft(TRUE) > 0)
{
wxLogDebug(wxT("There were memory leaks."));
wxDebugContext::Dump();
wxDebugContext::PrintStatistics();
}
// wxDebugContext::SetStream(NULL, NULL);
#endif
#if wxUSE_LOG
// do it as the very last thing because everything else can log messages
delete wxLog::SetActiveTarget(NULL);
#endif // wxUSE_LOG
}
#if !defined(_WINDLL) || (defined(_WINDLL) && defined(WXMAKINGDLL))
//// Main wxWindows entry point
int wxEntry(WXHINSTANCE hInstance,
WXHINSTANCE WXUNUSED(hPrevInstance),
char *lpCmdLine,
int nCmdShow,
bool enterLoop)
{
// do check for memory leaks on program exit
// (another useful flag is _CRTDBG_DELAY_FREE_MEM_DF which doesn't free
// deallocated memory which may be used to simulate low-memory condition)
// TODO: wxCrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF);
// take everything into a try-except block in release build
// FIXME other compilers must support Win32 SEH (structured exception
// handling) too, just find the appropriate keyword in their docs!
// Please note that it's _not_ the same as C++ exceptions!
wxhInstance = (HINSTANCE) hInstance;
if (!wxApp::Initialize())
return 0;
// create the application object or ensure that one already exists
if (!wxTheApp)
{
// The app may have declared a global application object, but we recommend
// the IMPLEMENT_APP macro is used instead, which sets an initializer
// function for delayed, dynamic app object construction.
wxCHECK_MSG( wxApp::GetInitializerFunction(), 0,
wxT("No initializer - use IMPLEMENT_APP macro.") );
wxTheApp = (wxApp*)(*wxApp::GetInitializerFunction()) ();
}
wxCHECK_MSG( wxTheApp, 0, wxT("You have to define an instance of wxApp!") );
// save the WinMain() parameters
wxTheApp->ConvertToStandardCommandArgs(lpCmdLine);
wxTheApp->m_nCmdShow = nCmdShow;
// GUI-specific initialisation. In fact on Windows we don't have any,
// but this call is provided for compatibility across platforms.
wxTheApp->OnInitGui();
int retValue = 0;
if ( wxTheApp->OnInit() )
{
if ( enterLoop )
{
retValue = wxTheApp->OnRun();
}
else
// We want to initialize, but not run or exit immediately.
return 1;
}
//else: app initialization failed, so we skipped OnRun()
wxWindow *topWindow = wxTheApp->GetTopWindow();
if ( topWindow )
{
// Forcibly delete the window.
if ( topWindow->IsKindOf(CLASSINFO(wxFrame)) ||
topWindow->IsKindOf(CLASSINFO(wxDialog)) )
{
topWindow->Close(TRUE);
wxTheApp->DeletePendingObjects();
}
else
{
delete topWindow;
wxTheApp->SetTopWindow(NULL);
}
}
wxTheApp->OnExit();
wxApp::CleanUp();
return retValue;
}
#else /* _WINDLL */
//// Entry point for DLLs
int wxEntry(WXHINSTANCE hInstance)
{
wxhInstance = (HINSTANCE) hInstance;
wxApp::Initialize();
// The app may have declared a global application object, but we recommend
// the IMPLEMENT_APP macro is used instead, which sets an initializer function
// for delayed, dynamic app object construction.
if (!wxTheApp)
{
wxCHECK_MSG( wxApp::GetInitializerFunction(), 0,
"No initializer - use IMPLEMENT_APP macro." );
wxTheApp = (* wxApp::GetInitializerFunction()) ();
}
wxCHECK_MSG( wxTheApp, 0, "You have to define an instance of wxApp!" );
wxTheApp->argc = 0;
wxTheApp->argv = NULL;
wxTheApp->OnInitGui();
wxTheApp->OnInit();
wxWindow *topWindow = wxTheApp->GetTopWindow();
if ( topWindow && topWindow->GetHWND())
{
topWindow->Show(TRUE);
}
return 1;
}
#endif // _WINDLL
//// Static member initialization
wxAppInitializerFunction wxAppBase::m_appInitFn = (wxAppInitializerFunction) NULL;
wxApp::wxApp()
{
m_topWindow = NULL;
wxTheApp = this;
m_wantDebugOutput = TRUE;
argc = 0;
argv = NULL;
m_printMode = wxPRINT_WINDOWS;
m_exitOnFrameDelete = TRUE;
m_auto3D = TRUE;
}
wxApp::~wxApp()
{
// Delete command-line args
int i;
for (i = 0; i < argc; i++)
{
delete[] argv[i];
}
delete[] argv;
}
bool wxApp::Initialized()
{
#ifndef _WINDLL
if (GetTopWindow())
return TRUE;
else
return FALSE;
#endif
#ifdef _WINDLL // Assume initialized if DLL (no way of telling)
return TRUE;
#endif
}
/*
* Get and process a message, returning FALSE if WM_QUIT
* received (and also set the flag telling the app to exit the main loop)
*
*/
bool wxApp::DoMessage()
{
BOOL rc = FALSE; // TODO: ::GetMessage(&s_currentMsg, (HWND) NULL, 0, 0);
if ( rc == 0 )
{
// got WM_QUIT
m_keepGoing = FALSE;
return FALSE;
}
else if ( rc == -1 )
{
// should never happen, but let's test for it nevertheless
wxLogLastError("GetMessage");
}
else
{
#if wxUSE_THREADS
wxASSERT_MSG( wxThread::IsMain(),
wxT("only the main thread can process Windows messages") );
static bool s_hadGuiLock = TRUE;
// TODO:
/*
static wxMsgArray s_aSavedMessages;
// if a secondary thread owns 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];
if ( !ProcessMessage((WXMSG *)&msg) )
{
::TranslateMessage(&msg);
::DispatchMessage(&msg);
}
}
s_aSavedMessages.Empty();
}
}
*/
#endif // wxUSE_THREADS
// Process the message
// TODO:
/*
if ( !ProcessMessage((WXMSG *)&s_currentMsg) )
{
::TranslateMessage(&s_currentMsg);
::DispatchMessage(&s_currentMsg);
}
*/
}
return TRUE;
}
/*
* Keep trying to process messages until WM_QUIT
* received.
*
* If there are messages to be processed, they will all be
* processed and OnIdle will not be called.
* When there are no more messages, OnIdle is called.
* If OnIdle requests more time,
* it will be repeatedly called so long as there are no pending messages.
* A 'feature' of this is that once OnIdle has decided that no more processing
* is required, then it won't get processing time until further messages
* are processed (it'll sit in DoMessage).
*/
int wxApp::MainLoop()
{
m_keepGoing = TRUE;
while ( m_keepGoing )
{
#if wxUSE_THREADS
wxMutexGuiLeaveOrEnter();
#endif // wxUSE_THREADS
// TODO:
/*
while ( !::PeekMessage(&s_currentMsg, 0, 0, 0, PM_NOREMOVE) &&
ProcessIdle() )
{
}
*/
DoMessage();
}
// TODO: return s_currentMsg.wParam;
return FALSE;
}
// Returns TRUE if more time is needed.
bool wxApp::ProcessIdle()
{
wxIdleEvent event;
event.SetEventObject(this);
ProcessEvent(event);
return event.MoreRequested();
}
#if wxUSE_THREADS
void wxApp::ProcessPendingEvents()
{
wxNode *node = wxPendingEvents->First();
wxCriticalSectionLocker locker(*wxPendingEventsLocker);
while (node)
{
wxEvtHandler *handler = (wxEvtHandler *)node->Data();
handler->ProcessPendingEvents();
delete node;
node = wxPendingEvents->First();
}
}
#endif
void wxApp::ExitMainLoop()
{
m_keepGoing = FALSE;
}
bool wxApp::Pending()
{
// TODO: return (::PeekMessage(&s_currentMsg, 0, 0, 0, PM_NOREMOVE) != 0);
return FALSE;
}
void wxApp::Dispatch()
{
DoMessage();
}
/*
* Give all windows a chance to preprocess
* the message. Some may have accelerator tables, or have
* MDI complications.
*/
bool wxApp::ProcessMessage(WXMSG *wxmsg)
{
// TODO:
/*
MSG *msg = (MSG *)wxmsg;
HWND hWnd = msg->hwnd;
wxWindow *wndThis = wxFindWinFromHandle((WXHWND)hWnd), *wnd;
// for some composite controls (like a combobox), wndThis might be NULL
// because the subcontrol is not a wxWindow, but only the control itself
// is - try to catch this case
while ( hWnd && !wndThis )
{
hWnd = 0; // TODO: ::GetParent(hWnd);
wndThis = wxFindWinFromHandle((WXHWND)hWnd);
}
// Try translations first; find the youngest window with
// a translation table.
for ( wnd = wndThis; wnd; wnd = wnd->GetParent() )
{
if ( wnd->OS2TranslateMessage(wxmsg) )
return TRUE;
}
// Anyone for a non-translation message? Try youngest descendants first.
for ( wnd = wndThis; wnd; wnd = wnd->GetParent() )
{
if ( wnd->OS2ProcessMessage(wxmsg) )
return TRUE;
}
*/
return FALSE;
}
void wxApp::OnIdle(wxIdleEvent& event)
{
static bool s_inOnIdle = FALSE;
// Avoid recursion (via ProcessEvent default case)
if ( s_inOnIdle )
return;
s_inOnIdle = TRUE;
// 'Garbage' collection of windows deleted with Close().
DeletePendingObjects();
#if wxUSE_LOG
// flush the logged messages if any
wxLog *pLog = wxLog::GetActiveTarget();
if ( pLog != NULL && pLog->HasPendingMessages() )
pLog->Flush();
#endif // wxUSE_LOG
// Send OnIdle events to all windows
if ( SendIdleEvents() )
{
// SendIdleEvents() returns TRUE if at least one window requested more
// idle events
event.RequestMore(TRUE);
}
// If they are pending events, we must process them.
#if wxUSE_THREADS
ProcessPendingEvents();
#endif
s_inOnIdle = FALSE;
}
// Send idle event to all top-level windows
bool wxApp::SendIdleEvents()
{
bool needMore = FALSE;
wxWindowList::Node* node = wxTopLevelWindows.GetFirst();
while (node)
{
wxWindow* win = node->GetData();
if (SendIdleEvents(win))
needMore = TRUE;
node = node->GetNext();
}
return needMore;
}
// Send idle event to window and all subwindows
bool wxApp::SendIdleEvents(wxWindow* win)
{
bool needMore = FALSE;
wxIdleEvent event;
event.SetEventObject(win);
win->GetEventHandler()->ProcessEvent(event);
if (event.MoreRequested())
needMore = TRUE;
wxNode* node = win->GetChildren().First();
while (node)
{
wxWindow* win = (wxWindow*) node->Data();
if (SendIdleEvents(win))
needMore = TRUE;
node = node->Next();
}
return needMore;
}
void wxApp::DeletePendingObjects()
{
wxNode *node = wxPendingDelete.First();
while (node)
{
wxObject *obj = (wxObject *)node->Data();
delete obj;
if (wxPendingDelete.Member(obj))
delete node;
// Deleting one object may have deleted other pending
// objects, so start from beginning of list again.
node = wxPendingDelete.First();
}
}
void wxApp::OnEndSession(wxCloseEvent& WXUNUSED(event))
{
if (GetTopWindow())
GetTopWindow()->Close(TRUE);
}
// Default behaviour: close the application with prompts. The
// user can veto the close, and therefore the end session.
void wxApp::OnQueryEndSession(wxCloseEvent& event)
{
if (GetTopWindow())
{
if (!GetTopWindow()->Close(!event.CanVeto()))
event.Veto(TRUE);
}
}
int wxApp::GetComCtl32Version() const
{
// TODO: Does OS/2 even need this method?
/*
// have we loaded COMCTL32 yet?
HMODULE theModule = ::GetModuleHandle(wxT("COMCTL32"));
int version = 0;
// if so, then we can check for the version
if (theModule)
{
// InitCommonControlsEx is unique to 4.7 and later
FARPROC theProc = ::GetProcAddress(theModule, "InitCommonControlsEx");
if (! theProc)
{ // not found, must be 4.00
version = 400;
}
else
{
// The following symbol are unique to 4.71
// DllInstall
// FlatSB_EnableScrollBar FlatSB_GetScrollInfo FlatSB_GetScrollPos
// FlatSB_GetScrollProp FlatSB_GetScrollRange FlatSB_SetScrollInfo
// FlatSB_SetScrollPos FlatSB_SetScrollProp FlatSB_SetScrollRange
// FlatSB_ShowScrollBar
// _DrawIndirectImageList _DuplicateImageList
// InitializeFlatSB
// UninitializeFlatSB
// we could check for any of these - I chose DllInstall
FARPROC theProc = ::GetProcAddress(theModule, "DllInstall");
if (! theProc)
{
// not found, must be 4.70
version = 470;
}
else
{ // found, must be 4.71
version = 471;
}
}
}
return version;
*/
return 0;
}
void wxExit()
{
wxLogError(_("Fatal error: exiting"));
wxApp::CleanUp();
}
// Yield to incoming messages
bool wxYield()
{
// TODO:
/*
MSG msg;
// We want to go back to the main message loop
// if we see a WM_QUIT. (?)
#ifdef __WXWINE__
while (PeekMessage(&msg, (HWND)NULL, 0, 0, PM_NOREMOVE) && msg.message != WM_QUIT)
#else
while (PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE) && msg.message != WM_QUIT)
#endif
{
if ( !wxTheApp->DoMessage() )
break;
}
// If they are pending events, we must process them.
#if wxUSE_THREADS
wxTheApp->ProcessPendingEvents();
#endif
*/
return TRUE;
}
wxIcon wxApp::GetStdIcon(int which) const
{
// TODO:
/*
switch(which)
{
case wxICON_INFORMATION:
return wxIcon("wxICON_INFO");
case wxICON_QUESTION:
return wxIcon("wxICON_QUESTION");
case wxICON_EXCLAMATION:
return wxIcon("wxICON_WARNING");
default:
wxFAIL_MSG(wxT("requested non existent standard icon"));
// still fall through
case wxICON_HAND:
return wxIcon("wxICON_ERROR");
}
*/
return wxIcon("wxICON_ERROR");
}
HINSTANCE wxGetInstance()
{
return wxhInstance;
}
void wxSetInstance(HINSTANCE hInst)
{
wxhInstance = hInst;
}
Reference in New Issue View Git Blame Copy Permalink