/////////////////////////////////////////////////////////////////////////////
-// Name: app.cpp
+// Name: src/msw/app.cpp
// Purpose: wxApp
// Author: Julian Smart
// Modified by:
// Created: 04/01/98
// RCS-ID: $Id$
-// Copyright: (c) Julian Smart and Markus Holzem
-// Licence: wxWindows license
+// Copyright: (c) Julian Smart
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-#ifdef __GNUG__
-#pragma implementation "app.h"
-#endif
+// ===========================================================================
+// declarations
+// ===========================================================================
+
+// ---------------------------------------------------------------------------
+// headers
+// ---------------------------------------------------------------------------
// For compilers that support precompilation, includes "wx.h".
-#define IN_WX_MAIN_CPP
#include "wx/wxprec.h"
#if defined(__BORLANDC__)
-#pragma hdrstop
+ #pragma hdrstop
#endif
#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/msw/wrapcctl.h"
+ #include "wx/dynarray.h"
+ #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/crt.h"
+ #include "wx/log.h"
+ #include "wx/module.h"
#endif
+#include "wx/apptrait.h"
+#include "wx/filename.h"
+#include "wx/dynlib.h"
+#include "wx/evtloop.h"
+#include "wx/thread.h"
+
#include "wx/msw/private.h"
-#include "wx/postscrp.h"
-#include "wx/log.h"
-#include "wx/module.h"
+#include "wx/msw/dc.h"
+#include "wx/msw/ole/oleutils.h"
+#include "wx/msw/private/timer.h"
-#if USE_WX_RESOURCES
-#include "wx/resource.h"
-#endif
+#if wxUSE_TOOLTIPS
+ #include "wx/tooltip.h"
+#endif // wxUSE_TOOLTIPS
+// OLE is used for drag-and-drop, clipboard, OLE Automation..., but some
+// compilers don't support it (missing headers, libs, ...)
+#if defined(__GNUWIN32_OLD__) || defined(__SYMANTEC__)
+ #undef wxUSE_OLE
-#include <string.h>
+ #define wxUSE_OLE 0
+#endif // broken compilers
-#if defined(__WIN95__) && !defined(__GNUWIN32__)
-#include <commctrl.h>
+#if defined(__POCKETPC__) || defined(__SMARTPHONE__)
+ #include <ole2.h>
+ #include <aygshell.h>
#endif
-extern char *wxBuffer;
-extern char *wxOsVersion;
-extern wxList *wxWinHandleList;
-extern wxList wxPendingDelete;
-extern void wxSetKeyboardHook(bool doIt);
-extern wxCursor *g_globalCursor;
-
-HANDLE wxhInstance = 0;
-static MSG s_currentMsg;
-wxApp *wxTheApp = NULL;
+#if wxUSE_OLE
+ #include <ole2.h>
+#endif
-char wxFrameClassName[] = "wxFrameClass";
-char wxMDIFrameClassName[] = "wxMDIFrameClass";
-char wxMDIChildFrameClassName[] = "wxMDIChildFrameClass";
-char wxPanelClassName[] = "wxPanelClass";
-char wxCanvasClassName[] = "wxCanvasClass";
+#include <string.h>
+#include <ctype.h>
+
+#include "wx/msw/missing.h"
+
+// instead of including <shlwapi.h> which is not part of the core SDK and not
+// shipped at all with other compilers, we always define the parts of it we
+// need here ourselves
+//
+// NB: DLLVER_PLATFORM_WINDOWS will be defined if shlwapi.h had been somehow
+// included already
+#ifndef DLLVER_PLATFORM_WINDOWS
+ // hopefully we don't need to change packing as DWORDs should be already
+ // correctly aligned
+ struct DLLVERSIONINFO
+ {
+ DWORD cbSize;
+ DWORD dwMajorVersion; // Major version
+ DWORD dwMinorVersion; // Minor version
+ DWORD dwBuildNumber; // Build number
+ DWORD dwPlatformID; // DLLVER_PLATFORM_*
+ };
-HICON wxSTD_FRAME_ICON = NULL;
-HICON wxSTD_MDICHILDFRAME_ICON = NULL;
-HICON wxSTD_MDIPARENTFRAME_ICON = NULL;
+ typedef HRESULT (CALLBACK* DLLGETVERSIONPROC)(DLLVERSIONINFO *);
+#endif // defined(DLLVERSIONINFO)
-HICON wxDEFAULT_FRAME_ICON = NULL;
-HICON wxDEFAULT_MDICHILDFRAME_ICON = NULL;
-HICON wxDEFAULT_MDIPARENTFRAME_ICON = NULL;
-HBRUSH wxDisableButtonBrush = 0;
+// ---------------------------------------------------------------------------
+// global variables
+// ---------------------------------------------------------------------------
-LRESULT APIENTRY wxWndProc(HWND, UINT, WPARAM, LPARAM);
+#if !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
+extern void wxSetKeyboardHook(bool doIt);
+#endif
-#if !USE_SHARED_LIBRARY
-IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler)
-BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
- EVT_IDLE(wxApp::OnIdle)
-END_EVENT_TABLE()
+// NB: all "NoRedraw" classes must have the same names as the "normal" classes
+// with NR suffix - wxWindow::MSWCreate() supposes this
+#ifdef __WXWINCE__
+WXDLLIMPEXP_CORE wxChar *wxCanvasClassName;
+WXDLLIMPEXP_CORE wxChar *wxCanvasClassNameNR;
+#else
+WXDLLIMPEXP_CORE const wxChar *wxCanvasClassName = NULL;
+WXDLLIMPEXP_CORE const wxChar *wxCanvasClassNameNR = NULL;
#endif
+WXDLLIMPEXP_CORE const wxChar *wxMDIFrameClassName = NULL;
+WXDLLIMPEXP_CORE const wxChar *wxMDIFrameClassNameNoRedraw = NULL;
+WXDLLIMPEXP_CORE const wxChar *wxMDIChildFrameClassName = NULL;
+WXDLLIMPEXP_CORE const wxChar *wxMDIChildFrameClassNameNoRedraw = NULL;
-long wxApp::sm_lastMessageTime = 0;
+// ----------------------------------------------------------------------------
+// private functions
+// ----------------------------------------------------------------------------
-#ifdef __WIN95__
-static HINSTANCE gs_hRichEdit = NULL;
-#endif
+LRESULT WXDLLEXPORT APIENTRY wxWndProc(HWND, UINT, WPARAM, LPARAM);
-bool wxApp::Initialize(WXHANDLE instance)
+// ===========================================================================
+// wxGUIAppTraits implementation
+// ===========================================================================
+
+// private class which we use to pass parameters from BeforeChildWaitLoop() to
+// AfterChildWaitLoop()
+struct ChildWaitLoopData
{
- HANDLE hInstance = (HANDLE)instance;
+ ChildWaitLoopData(wxWindowDisabler *wd_, wxWindow *winActive_)
+ {
+ wd = wd_;
+ winActive = winActive_;
+ }
- CommonInit();
+ wxWindowDisabler *wd;
+ wxWindow *winActive;
+};
-#if defined(__WIN95__)
- InitCommonControls();
- gs_hRichEdit = LoadLibrary("RICHED32.DLL");
+void *wxGUIAppTraits::BeforeChildWaitLoop()
+{
+ /*
+ We use a dirty hack here to disable all application windows (which we
+ must do because otherwise the calls to wxYield() could lead to some very
+ unexpected reentrancies in the users code) but to avoid losing
+ focus/activation entirely when the child process terminates which would
+ happen if we simply disabled everything using wxWindowDisabler. Indeed,
+ remember that Windows will never activate a disabled window and when the
+ last childs window is closed and Windows looks for a window to activate
+ all our windows are still disabled. There is no way to enable them in
+ time because we don't know when the childs windows are going to be
+ closed, so the solution we use here is to keep one special tiny frame
+ enabled all the time. Then when the child terminates it will get
+ activated and when we close it below -- after reenabling all the other
+ windows! -- the previously active window becomes activated again and
+ everything is ok.
+ */
+ wxBeginBusyCursor();
+
+ // first disable all existing windows
+ wxWindowDisabler *wd = new wxWindowDisabler;
+
+ // then create an "invisible" frame: it has minimal size, is positioned
+ // (hopefully) outside the screen and doesn't appear on the taskbar
+ wxWindow *winActive = new wxFrame
+ (
+ wxTheApp->GetTopWindow(),
+ wxID_ANY,
+ wxEmptyString,
+ wxPoint(32600, 32600),
+ wxSize(1, 1),
+ wxDEFAULT_FRAME_STYLE | wxFRAME_NO_TASKBAR
+ );
+ winActive->Show();
+
+ return new ChildWaitLoopData(wd, winActive);
+}
- if (gs_hRichEdit == NULL)
- {
- wxMessageBox("Could not initialise Rich Edit DLL");
- }
-#endif
+void wxGUIAppTraits::AlwaysYield()
+{
+ wxYield();
+}
-#if defined(WX_DRAG_DROP)
- // we need to initialize OLE library
- if ( FAILED(::OleInitialize(NULL)) )
- wxFatalError(_("Cannot initialize OLE"));
-#endif
+void wxGUIAppTraits::AfterChildWaitLoop(void *dataOrig)
+{
+ wxEndBusyCursor();
-#if CTL3D
- if (!Ctl3dRegister(hInstance))
- wxFatalError("Cannot register CTL3D");
+ ChildWaitLoopData * const data = (ChildWaitLoopData *)dataOrig;
- Ctl3dAutoSubclass(hInstance);
-#endif
+ delete data->wd;
- wxSTD_FRAME_ICON = LoadIcon(hInstance, "wxSTD_FRAME");
- wxSTD_MDIPARENTFRAME_ICON = LoadIcon(hInstance, "wxSTD_MDIPARENTFRAME");
- wxSTD_MDICHILDFRAME_ICON = LoadIcon(hInstance, "wxSTD_MDICHILDFRAME");
+ // finally delete the dummy frame and, as wd has been already destroyed and
+ // the other windows reenabled, the activation is going to return to the
+ // window which had had it before
+ data->winActive->Destroy();
- wxDEFAULT_FRAME_ICON = LoadIcon(hInstance, "wxDEFAULT_FRAME");
- wxDEFAULT_MDIPARENTFRAME_ICON = LoadIcon(hInstance, "wxDEFAULT_MDIPARENTFRAME");
- wxDEFAULT_MDICHILDFRAME_ICON = LoadIcon(hInstance, "wxDEFAULT_MDICHILDFRAME");
+ // also delete the temporary data object itself
+ delete data;
+}
- RegisterWindowClasses();
+bool wxGUIAppTraits::DoMessageFromThreadWait()
+{
+ // we should return false only if the app should exit, i.e. only if
+ // Dispatch() determines that the main event loop should terminate
+ wxEventLoopBase * const evtLoop = wxEventLoop::GetActive();
+ if ( !evtLoop || !evtLoop->Pending() )
+ {
+ // no events means no quit event
+ return true;
+ }
- // Create the brush for disabling bitmap buttons
+ return evtLoop->Dispatch();
+}
- LOGBRUSH lb ;
- lb.lbStyle = BS_PATTERN;
- lb.lbHatch = (int)LoadBitmap( hInstance, "wxDISABLE_BUTTON_BITMAP" ) ;
- wxDisableButtonBrush = ::CreateBrushIndirect( & lb ) ;
- ::DeleteObject( (HGDIOBJ)lb.lbHatch ) ;
+DWORD wxGUIAppTraits::WaitForThread(WXHANDLE hThread)
+{
+ // if we don't have a running event loop, we shouldn't wait for the
+ // messages as we never remove them from the message queue and so we enter
+ // an infinite loop as MsgWaitForMultipleObjects() keeps returning
+ // WAIT_OBJECT_0 + 1
+ if ( !wxEventLoop::GetActive() )
+ return DoSimpleWaitForThread(hThread);
+
+ return ::MsgWaitForMultipleObjects
+ (
+ 1, // number of objects to wait for
+ (HANDLE *)&hThread, // the objects
+ false, // wait for any objects, not all
+ INFINITE, // no timeout
+ QS_ALLINPUT | // return as soon as there are any events
+ QS_ALLPOSTMESSAGE
+ );
+}
-#if USE_PENWINDOWS
- wxRegisterPenWin();
-#endif
+wxPortId wxGUIAppTraits::GetToolkitVersion(int *majVer, int *minVer) const
+{
+ OSVERSIONINFO info;
+ wxZeroMemory(info);
- wxWinHandleList = new wxList(wxKEY_INTEGER);
+ // on Windows, the toolkit version is the same of the OS version
+ // as Windows integrates the OS kernel with the GUI toolkit.
+ info.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
+ if ( ::GetVersionEx(&info) )
+ {
+ if ( majVer )
+ *majVer = info.dwMajorVersion;
+ if ( minVer )
+ *minVer = info.dwMinorVersion;
+ }
- // This is to foil optimizations in Visual C++ that
- // throw out dummy.obj.
-#if (_MSC_VER >= 800) && !defined(WXMAKINGDLL)
- extern char wxDummyChar;
- if (wxDummyChar) wxDummyChar++;
-#endif
- wxSetKeyboardHook(TRUE);
-
- wxModule::RegisterModules();
- if (!wxModule::InitializeModules())
- return FALSE;
- return TRUE;
-}
-
-bool wxApp::RegisterWindowClasses(void)
-{
-///////////////////////////////////////////////////////////////////////
-// Register the frame window class.
- WNDCLASS wndclass; // Structure used to register Windows class.
-
- wndclass.style = CS_HREDRAW | CS_VREDRAW;
- wndclass.lpfnWndProc = (WNDPROC)wxWndProc;
- wndclass.cbClsExtra = 0;
- wndclass.cbWndExtra = sizeof( DWORD ); // was 4
- wndclass.hInstance = wxhInstance;
- wndclass.hIcon = NULL; // wxSTD_FRAME_ICON;
- wndclass.hCursor = LoadCursor( NULL, IDC_ARROW );
- wndclass.hbrBackground = (HBRUSH)(COLOR_APPWORKSPACE+1) ;
-// wndclass.hbrBackground = GetStockObject( WHITE_BRUSH );
- wndclass.lpszMenuName = NULL;
-#ifdef _MULTIPLE_INSTANCES
- sprintf( wxFrameClassName,"wxFrameClass%d", hInstance );
-#endif
- wndclass.lpszClassName = wxFrameClassName;
-
- if (!RegisterClass( &wndclass ))
- {
- // wxFatalError("Can't register Frame Window class");
- }
-
-///////////////////////////////////////////////////////////////////////
-// Register the MDI frame window class.
- WNDCLASS wndclass1; // Structure used to register Windows class.
-
- wndclass1.style = CS_HREDRAW | CS_VREDRAW;
- wndclass1.lpfnWndProc = (WNDPROC)wxWndProc;
- wndclass1.cbClsExtra = 0;
- wndclass1.cbWndExtra = sizeof( DWORD ); // was 4
- wndclass1.hInstance = wxhInstance;
- wndclass1.hIcon = NULL; // wxSTD_MDIPARENTFRAME_ICON;
- wndclass1.hCursor = LoadCursor( NULL, IDC_ARROW );
-// wndclass1.hbrBackground = (HBRUSH)(COLOR_APPWORKSPACE+1) ;
- wndclass1.hbrBackground = NULL;
- wndclass1.lpszMenuName = NULL;
-
- wndclass1.lpszClassName = wxMDIFrameClassName;
- if (!RegisterClass( &wndclass1 ))
- {
-// wxFatalError("Can't register MDI Frame window class");
-// return FALSE;
- }
-
-///////////////////////////////////////////////////////////////////////
-// Register the MDI child frame window class.
- WNDCLASS wndclass4; // Structure used to register Windows class.
-
- wndclass4.style = CS_HREDRAW | CS_VREDRAW;
- wndclass4.lpfnWndProc = (WNDPROC)wxWndProc;
- wndclass4.cbClsExtra = 0;
- wndclass4.cbWndExtra = sizeof( DWORD ); // was 4
- wndclass4.hInstance = wxhInstance;
- wndclass4.hIcon = NULL; // wxSTD_MDICHILDFRAME_ICON;
- wndclass4.hCursor = LoadCursor( NULL, IDC_ARROW );
- // TODO: perhaps this should be NULL so that Windows doesn't
- // paint the background itself (would OnEraseBackground duplicate
- // this?)
- wndclass4.hbrBackground = (HBRUSH)(COLOR_WINDOW+1) ;
-// wndclass4.hbrBackground = NULL;
- wndclass4.lpszMenuName = NULL;
- wndclass4.lpszClassName = wxMDIChildFrameClassName;
-
- if (!RegisterClass( &wndclass4 ))
- {
-// wxFatalError("Can't register MDI child frame window class");
-// return FALSE;
- }
-
-///////////////////////////////////////////////////////////////////////
-// Register the panel window class.
- WNDCLASS wndclass2; // Structure used to register Windows class.
- memset(&wndclass2, 0, sizeof(WNDCLASS)); // start with NULL defaults
- // Use CS_OWNDC to avoid messing about restoring the context
- // for every graphic operation.
- wndclass2.style = CS_HREDRAW | CS_VREDRAW;
- wndclass2.lpfnWndProc = (WNDPROC)wxWndProc;
- wndclass2.cbClsExtra = 0;
- wndclass2.cbWndExtra = sizeof( DWORD ); // was 4
- wndclass2.hInstance = wxhInstance;
- wndclass2.hIcon = NULL;
- wndclass2.hCursor = NULL;
-// wndclass2.hbrBackground = (HBRUSH)(COLOR_BTNFACE+1) ;
- wndclass2.hbrBackground = GetStockObject( LTGRAY_BRUSH );
- wndclass2.lpszMenuName = NULL;
- wndclass2.lpszClassName = wxPanelClassName;
- if (!RegisterClass( &wndclass2 ))
- {
-// wxFatalError("Can't register Panel Window class");
-// return FALSE;
- }
-
-///////////////////////////////////////////////////////////////////////
-// Register the canvas and textsubwindow class name
- WNDCLASS wndclass3; // Structure used to register Windows class.
- memset(&wndclass3, 0, sizeof(WNDCLASS)); // start with NULL defaults
- // Use CS_OWNDC to avoid messing about restoring the context
- // for every graphic operation.
-// wndclass3.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC | CS_DBLCLKS ;
- // wxWin 2.0
- wndclass3.style = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS ;
- wndclass3.lpfnWndProc = (WNDPROC)wxWndProc;
- wndclass3.cbClsExtra = 0;
- wndclass3.cbWndExtra = sizeof( DWORD ); // was 4
- wndclass3.hInstance = wxhInstance;
- wndclass3.hIcon = NULL;
- wndclass3.hCursor = NULL;
-// wndclass3.hbrBackground = (HBRUSH)(COLOR_WINDOW+1) ;
- wndclass3.hbrBackground = NULL;
- wndclass3.lpszMenuName = NULL;
- wndclass3.lpszClassName = wxCanvasClassName;
- if (!RegisterClass( &wndclass3))
- {
-// wxFatalError("Can't register Canvas class");
-// return FALSE;
- }
-
- return TRUE;
-}
-
-// Cleans up any wxWindows internal structures left lying around
-void wxApp::CleanUp(void)
-{
- wxModule::CleanUpModules();
-
- CommonCleanUp();
-
- wxSetKeyboardHook(FALSE);
-
-#ifdef __WIN95__
- if (gs_hRichEdit != NULL)
- FreeLibrary(gs_hRichEdit);
+#if defined(__WXHANDHELD__) || defined(__WXWINCE__)
+ return wxPORT_WINCE;
+#else
+ return wxPORT_MSW;
#endif
+}
-#if USE_PENWINDOWS
- wxCleanUpPenWin();
-#endif
+#if wxUSE_TIMER
- 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 )
- ::DeleteObject( wxDisableButtonBrush ) ;
-
-#if defined(WX_DRAG_DROP)
- ::OleUninitialize();
-#endif
+wxTimerImpl *wxGUIAppTraits::CreateTimerImpl(wxTimer *timer)
+{
+ return new wxMSWTimerImpl(timer);
+}
-#if CTL3D
- Ctl3dUnregister(wxhInstance);
-#endif
+#endif // wxUSE_TIMER
- if (wxWinHandleList)
- delete wxWinHandleList ;
-
+wxEventLoopBase* wxGUIAppTraits::CreateEventLoop()
+{
+ return new wxEventLoop;
}
-void wxApp::CommonInit(void)
-{
-#ifdef __WINDOWS__
- wxBuffer = new char[1500];
-#else
- wxBuffer = new char[BUFSIZ + 512];
-#endif
+// ---------------------------------------------------------------------------
+// Stuff for using console from the GUI applications
+// ---------------------------------------------------------------------------
- wxClassInfo::InitializeClasses();
+#ifndef __WXWINCE__
-#ifdef __X__
- wxTheFontNameDirectory.Initialize();
-#endif
+#include <wx/dynlib.h>
-#if defined(__X__) && USE_RESOURCES
- // Read standard font names from .Xdefaults
-
- extern char *wxDecorativeFontName;
- extern char *wxRomanFontName;
- extern char *wxModernFontName;
- extern char *wxSwissFontName;
- extern char *wxScriptFontName;
- extern char *wxTeletypeFontName;
- extern char *wxDefaultFontName;
-
- (void) wxGetResource("wxWindows", "defaultFamily", &wxDefaultFontName);
- (void) wxGetResource("wxWindows", "decorativeFamily", &wxDecorativeFontName);
- (void) wxGetResource("wxWindows", "romanFamily", &wxRomanFontName);
- (void) wxGetResource("wxWindows", "modernFamily", &wxModernFontName);
- (void) wxGetResource("wxWindows", "swissFamily", &wxSwissFontName);
- (void) wxGetResource("wxWindows", "scriptFamily", &wxScriptFontName);
- (void) wxGetResource("wxWindows", "teletypeFamily", &wxTeletypeFontName);
-#endif
+namespace
+{
-#if USE_RESOURCES
- (void) wxGetResource("wxWindows", "OsVersion", &wxOsVersion);
-#endif
+/*
+ Helper class to manipulate console from a GUI app.
- wxTheColourDatabase = new wxColourDatabase(wxKEY_STRING);
- wxTheColourDatabase->Initialize();
- wxInitializeStockObjects();
+ Notice that console output is available in the GUI app only if:
+ - AttachConsole() returns TRUE (which means it never works under pre-XP)
+ - we have a valid STD_ERROR_HANDLE
+ - command history hasn't been changed since our startup
-#if USE_WX_RESOURCES
- wxInitializeResourceSystem();
-#endif
+ To check if all these conditions are verified, you need to simple call
+ IsOkToUse(). It will check the first two conditions above the first time it
+ is called (and if this fails, the subsequent calls will return immediately)
+ and also recheck the last one every time it is called.
+ */
+class wxConsoleStderr
+{
+public:
+ // default ctor does nothing, call Init() before using this class
+ wxConsoleStderr()
+ {
+ m_hStderr = INVALID_HANDLE_VALUE;
+ m_historyLen =
+ m_dataLen =
+ m_dataLine = 0;
- // For PostScript printing
-#if USE_POSTSCRIPT
- wxInitializePrintSetupData();
- wxThePrintPaperDatabase = new wxPrintPaperDatabase;
- wxThePrintPaperDatabase->CreateDatabase();
-#endif
+ m_ok = -1;
+ }
- wxBitmap::InitStandardHandlers();
+ ~wxConsoleStderr()
+ {
+ if ( m_hStderr != INVALID_HANDLE_VALUE )
+ {
+ if ( !::FreeConsole() )
+ {
+ wxLogLastError(_T("FreeConsole"));
+ }
+ }
+ }
- g_globalCursor = new wxCursor;
-}
+ // return true if we were successfully initialized and there had been no
+ // console activity which would interfere with our output since then
+ bool IsOkToUse() const
+ {
+ if ( m_ok == -1 )
+ {
+ wxConsoleStderr * const self = wx_const_cast(wxConsoleStderr *, this);
+ self->m_ok = self->DoInit();
-void wxApp::CommonCleanUp(void)
-{
-#if USE_WX_RESOURCES
- wxCleanUpResourceSystem();
+ // no need to call IsHistoryUnchanged() as we just initialized
+ // m_history anyhow
+ return m_ok == 1;
+ }
-// 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;
+ return m_ok && IsHistoryUnchanged();
+ }
- wxDeleteStockObjects() ;
- // Destroy all GDI lists, etc.
- delete wxTheBrushList;
- wxTheBrushList = NULL;
+ // output the provided text on the console, return true if ok
+ bool Write(const wxString& text);
- delete wxThePenList;
- wxThePenList = NULL;
+private:
+ // called by Init() once only to do the real initialization
+ bool DoInit();
- delete wxTheFontList;
- wxTheFontList = NULL;
+ // retrieve the command line history into the provided buffer and return
+ // its length
+ int GetCommandHistory(wxWxCharBuffer& buf) const;
- delete wxTheBitmapList;
- wxTheBitmapList = NULL;
+ // check if the console history has changed
+ bool IsHistoryUnchanged() const;
- delete wxTheColourDatabase;
- wxTheColourDatabase = NULL;
+ int m_ok; // initially -1, set to true or false by Init()
-#if USE_POSTSCRIPT
- wxInitializePrintSetupData(FALSE);
- delete wxThePrintPaperDatabase;
- wxThePrintPaperDatabase = NULL;
-#endif
+ wxDynamicLibrary m_dllKernel32;
- wxBitmap::CleanUpHandlers();
+ HANDLE m_hStderr; // console handle, if it's valid we must call
+ // FreeConsole() (even if m_ok != 1)
- delete[] wxBuffer;
- wxBuffer = NULL;
-}
+ wxWxCharBuffer m_history; // command history on startup
+ int m_historyLen; // length command history buffer
+
+ wxCharBuffer m_data; // data between empty line and cursor position
+ int m_dataLen; // length data buffer
+ int m_dataLine; // line offset
-#if !defined(_WINDLL) || (defined(_WINDLL) && defined(WXMAKINGDLL))
+ typedef DWORD (WINAPI *GetConsoleCommandHistory_t)(LPTSTR sCommands,
+ DWORD nBufferLength,
+ LPCTSTR sExeName);
+ typedef DWORD (WINAPI *GetConsoleCommandHistoryLength_t)(LPCTSTR sExeName);
-// Main wxWindows entry point
+ GetConsoleCommandHistory_t m_pfnGetConsoleCommandHistory;
+ GetConsoleCommandHistoryLength_t m_pfnGetConsoleCommandHistoryLength;
-int wxEntry(WXHINSTANCE hInstance, WXHINSTANCE WXUNUSED(hPrevInstance), char *m_lpCmdLine,
- int nCmdShow, bool enterLoop)
+ DECLARE_NO_COPY_CLASS(wxConsoleStderr)
+};
+
+bool wxConsoleStderr::DoInit()
{
- wxhInstance = (HINSTANCE) hInstance;
+ HANDLE hStderr = ::GetStdHandle(STD_ERROR_HANDLE);
-#if (DEBUG && USE_MEMORY_TRACING) || USE_DEBUG_CONTEXT
+ if ( hStderr == INVALID_HANDLE_VALUE || !hStderr )
+ return false;
-#if !defined(_WINDLL)
- streambuf* sBuf = new wxDebugStreamBuf;
-#else
- streambuf* sBuf = NULL;
-#endif
- ostream* oStr = new ostream(sBuf) ;
- wxDebugContext::SetStream(oStr, sBuf);
+ if ( !m_dllKernel32.Load(_T("kernel32.dll")) )
+ return false;
-#endif
+ typedef BOOL (WINAPI *AttachConsole_t)(DWORD dwProcessId);
+ AttachConsole_t wxDL_INIT_FUNC(pfn, AttachConsole, m_dllKernel32);
- if (!wxApp::Initialize((WXHINSTANCE) wxhInstance))
- return 0;
+ if ( !pfnAttachConsole || !pfnAttachConsole(ATTACH_PARENT_PROCESS) )
+ return false;
- // 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)
- {
- if (!wxApp::GetInitializerFunction())
- {
- MessageBox(NULL, "No initializer - use IMPLEMENT_APP macro.", "wxWindows Error", MB_APPLMODAL | MB_ICONSTOP | MB_OK);
- return 0;
- }
-
- wxTheApp = (* wxApp::GetInitializerFunction()) ();
- }
-
- if (!wxTheApp) {
- MessageBox(NULL, "You have to define an instance of wxApp!", "wxWindows Error", MB_APPLMODAL | MB_ICONSTOP | MB_OK);
- return 0;
- }
-
- // Split command line into tokens, as in usual main(argc, argv)
- char **command = new char*[50];
-
- int count = 0;
- char *buf = new char[strlen(m_lpCmdLine) + 1];
-
- // Hangs around until end of app. in case
- // user carries pointers to the tokens
-
- /* Model independent strcpy */
- int i;
- for (i = 0; (buf[i] = m_lpCmdLine[i]) != 0; i++)
- {
- /* loop */;
- }
-
- // Get application name
- char name[200];
- ::GetModuleFileName(wxhInstance, name, 199);
-
- // Is it only 16-bit Borland that already copies the program name
- // to the first argv index?
-#if !defined(__GNUWIN32__)
-// #if ! (defined(__BORLANDC__) && !defined(__WIN32__))
- command[count++] = copystring(name);
-// #endif
-#endif
+ // console attached, set m_hStderr now to ensure that we free it in the
+ // dtor
+ m_hStderr = hStderr;
- strcpy(name, wxFileNameFromPath(name));
- wxStripExtension(name);
- wxTheApp->SetAppName(name);
-
- /* Break up string */
- // Treat strings enclosed in double-quotes as single arguments
- char* str = buf;
- while (*str)
- {
- while (*str && *str <= ' ') str++; // skip whitespace
- if (*str == '"')
- {
- str++;
- command[count++] = str;
- while (*str && *str != '"') str++;
- }
- else if (*str)
- {
- command[count++] = str;
- while (*str && *str > ' ') str++;
- }
- if (*str) *str++ = '\0';
- }
- command[count] = NULL; /* argv[] is NULL terminated list! */
-
- wxTheApp->argc = count;
- wxTheApp->argv = command;
- 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() ;
-
- if (!wxTheApp->OnInit())
- {
- wxTheApp->DeletePendingObjects();
- wxTheApp->OnExit();
- wxApp::CleanUp();
-
- delete wxTheApp;
- wxTheApp = NULL;
-
- delete [] buf ;
-
- // TODO: This should really be cleaned up in ~wxApp
- delete [] command[0] ;
- delete [] command ;
- return 0;
- }
-
- if (!enterLoop)
- return 0;
-
- int retValue = 1;
-
-/* New behaviour - leave it to the app to show the top window
- if (wxTheApp->GetTopWindow()) {
- // show the toplevel frame, only if we are not iconized (from MS-Windows)
- if(wxTheApp->GetShowFrameOnInit() && (nCmdShow!=SW_HIDE)) wxTheApp->GetTopWindow()->Show(TRUE);
- }
-*/
-
- retValue = wxTheApp->OnRun();
-
- if (wxTheApp->GetTopWindow())
- {
- // Forcibly delete the window.
- if (wxTheApp->GetTopWindow()->IsKindOf(CLASSINFO(wxFrame)) ||
- wxTheApp->GetTopWindow()->IsKindOf(CLASSINFO(wxDialog)))
- {
- wxTheApp->GetTopWindow()->Close(TRUE);
- wxTheApp->DeletePendingObjects();
- }
- else
- {
- delete wxTheApp->GetTopWindow();
- wxTheApp->SetTopWindow(NULL);
- }
- }
-
- wxTheApp->OnExit();
- wxApp::CleanUp();
-
- delete wxTheApp;
- wxTheApp = NULL;
-
- delete [] buf ;
- delete [] command[0] ;
- delete [] command ;
-
-#if (DEBUG && USE_MEMORY_TRACING) || USE_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() > 0)
- {
- wxTrace("There were memory leaks.\n");
- wxDebugContext::Dump();
- wxDebugContext::PrintStatistics();
- }
- wxDebugContext::SetStream(NULL, NULL);
-#endif
+ wxDL_INIT_FUNC_AW(m_pfn, GetConsoleCommandHistory, m_dllKernel32);
+ if ( !m_pfnGetConsoleCommandHistory )
+ return false;
+
+ wxDL_INIT_FUNC_AW(m_pfn, GetConsoleCommandHistoryLength, m_dllKernel32);
+ if ( !m_pfnGetConsoleCommandHistoryLength )
+ return false;
+
+ // remember the current command history to be able to compare with it later
+ // in IsHistoryUnchanged()
+ m_historyLen = GetCommandHistory(m_history);
+ if ( !m_history )
+ return false;
- return retValue;
+
+ // now find the first blank line above the current position
+ CONSOLE_SCREEN_BUFFER_INFO csbi;
+
+ if ( !::GetConsoleScreenBufferInfo(m_hStderr, &csbi) )
+ {
+ wxLogLastError(_T("GetConsoleScreenBufferInfo"));
+ return false;
+ }
+
+ COORD pos;
+ pos.X = 0;
+ pos.Y = csbi.dwCursorPosition.Y + 1;
+
+ // we decide that a line is empty if first 4 characters are spaces
+ DWORD ret;
+ char buf[4];
+ do
+ {
+ pos.Y--;
+ if ( !::ReadConsoleOutputCharacterA(m_hStderr, buf, WXSIZEOF(buf),
+ pos, &ret) )
+ {
+ wxLogLastError(_T("ReadConsoleOutputCharacterA"));
+ return false;
+ }
+ } while ( wxStrncmp(" ", buf, WXSIZEOF(buf)) != 0 );
+
+ // calculate line offset and length of data
+ m_dataLine = csbi.dwCursorPosition.Y - pos.Y;
+ m_dataLen = m_dataLine*csbi.dwMaximumWindowSize.X + csbi.dwCursorPosition.X;
+
+ if ( m_dataLen > 0 )
+ {
+ m_data.extend(m_dataLen);
+ if ( !::ReadConsoleOutputCharacterA(m_hStderr, m_data.data(), m_dataLen,
+ pos, &ret) )
+ {
+ wxLogLastError(_T("ReadConsoleOutputCharacterA"));
+ return false;
+ }
+ }
+
+ return true;
}
-#else /* _WINDLL */
+int wxConsoleStderr::GetCommandHistory(wxWxCharBuffer& buf) const
+{
+ // these functions are internal and may only be called by cmd.exe
+ static const wxChar *CMD_EXE = _T("cmd.exe");
+
+ const int len = m_pfnGetConsoleCommandHistoryLength(CMD_EXE);
+ if ( len )
+ {
+ buf.extend(len);
+
+ int len2 = m_pfnGetConsoleCommandHistory(buf.data(), len, CMD_EXE);
-int wxEntry(WXHINSTANCE hInstance)
+#if !wxUSE_UNICODE
+ // there seems to be a bug in the GetConsoleCommandHistoryA(), it
+ // returns the length of Unicode string and not ANSI one
+ len2 /= 2;
+#endif // !wxUSE_UNICODE
+
+ if ( len2 != len )
+ {
+ wxFAIL_MSG( _T("failed getting history?") );
+ }
+ }
+
+ return len;
+}
+
+bool wxConsoleStderr::IsHistoryUnchanged() const
{
- wxhInstance = (HINSTANCE) hInstance;
- wxApp::Initialize((WXHINSTANCE) wxhInstance);
+ wxASSERT_MSG( m_ok == 1, _T("shouldn't be called if not initialized") );
- // 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.
+ // get (possibly changed) command history
+ wxWxCharBuffer history;
+ const int historyLen = GetCommandHistory(history);
- if (!wxTheApp)
- {
- if (!wxApp::GetInitializerFunction())
- {
- MessageBox(NULL, "No initializer - use IMPLEMENT_APP macro.", "wxWindows Error", MB_APPLMODAL | MB_ICONSTOP | MB_OK);
- return 0;
- }
+ // and compare it with the original one
+ return historyLen == m_historyLen && history &&
+ memcmp(m_history, history, historyLen) == 0;
+}
- wxTheApp = (* wxApp::GetInitializerFunction()) ();
- }
+bool wxConsoleStderr::Write(const wxString& text)
+{
+ wxASSERT_MSG( m_hStderr != INVALID_HANDLE_VALUE,
+ _T("should only be called if Init() returned true") );
- if (!wxTheApp) {
- MessageBox(NULL, "You have to define an instance of wxApp!", "wxWindows Error", MB_APPLMODAL | MB_ICONSTOP | MB_OK);
- return 0;
- }
+ // get current position
+ CONSOLE_SCREEN_BUFFER_INFO csbi;
+ if ( !::GetConsoleScreenBufferInfo(m_hStderr, &csbi) )
+ {
+ wxLogLastError(_T("GetConsoleScreenBufferInfo"));
+ return false;
+ }
- wxTheApp->argc = 0;
- wxTheApp->argv = NULL;
+ // and calculate new position (where is empty line)
+ csbi.dwCursorPosition.X = 0;
+ csbi.dwCursorPosition.Y -= m_dataLine;
- wxTheApp->OnInitGui();
+ if ( !::SetConsoleCursorPosition(m_hStderr, csbi.dwCursorPosition) )
+ {
+ wxLogLastError(_T("SetConsoleCursorPosition"));
+ return false;
+ }
- wxTheApp->OnInit();
+ DWORD ret;
+ if ( !::FillConsoleOutputCharacter(m_hStderr, _T(' '), m_dataLen,
+ csbi.dwCursorPosition, &ret) )
+ {
+ wxLogLastError(_T("FillConsoleOutputCharacter"));
+ return false;
+ }
- if (wxTheApp->GetTopWindow() && wxTheApp->GetTopWindow()->GetHWND()) {
- wxTheApp->GetTopWindow()->Show(TRUE);
- }
+ if ( !::WriteConsole(m_hStderr, text.wx_str(), text.length(), &ret, NULL) )
+ {
+ wxLogLastError(_T("WriteConsole"));
+ return false;
+ }
- return 1;
+ WriteConsoleA(m_hStderr, m_data, m_dataLen, &ret, 0);
+
+ return true;
}
-#endif // _WINDLL
-// Static member initialization
-wxAppInitializerFunction wxApp::m_appInitFn = (wxAppInitializerFunction) NULL;
+wxConsoleStderr s_consoleStderr;
+
+} // anonymous namespace
-wxApp::wxApp(void)
+bool wxGUIAppTraits::CanUseStderr()
{
- m_topWindow = NULL;
- wxTheApp = this;
-// work_proc = NULL ;
- m_className = "";
-// m_resourceCollection = TRUE;
-// m_pendingCleanup = FALSE;
- m_wantDebugOutput = TRUE ;
- m_appName = "";
- argc = 0;
- argv = NULL;
-#ifdef __WINDOWS__
- m_printMode = wxPRINT_WINDOWS;
-#else
- m_printMode = wxPRINT_POSTSCRIPT;
-#endif
-// work_proc = NULL;
- m_exitOnFrameDelete = TRUE;
-// m_showOnInit = TRUE;
- m_auto3D = TRUE;
+ return s_consoleStderr.IsOkToUse();
}
-bool wxApp::Initialized(void)
+bool wxGUIAppTraits::WriteToStderr(const wxString& text)
{
-#ifndef _WINDLL
- if (GetTopWindow())
- return TRUE;
- else
- return FALSE;
-#endif
-#ifdef _WINDLL // Assume initialized if DLL (no way of telling)
- return TRUE;
-#endif
+ return s_consoleStderr.IsOkToUse() && s_consoleStderr.Write(text);
}
-/*
- * Get and process a message, returning FALSE if WM_QUIT
- * received.
- *
- */
-bool wxApp::DoMessage(void)
-{
- if (!::GetMessage(&s_currentMsg, (HWND) NULL, 0, 0))
- {
- return FALSE;
- }
-
- // Process the message
- if (!ProcessMessage((WXMSG *)&s_currentMsg))
- {
- ::TranslateMessage(&s_currentMsg);
- wxApp::sm_lastMessageTime = s_currentMsg.time; /* MATTHEW: timeStamp impl. */
- ::DispatchMessage(&s_currentMsg);
- }
- return TRUE;
-}
+#endif // !__WXWINCE__
-/*
- * 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).
- */
+// ===========================================================================
+// wxApp implementation
+// ===========================================================================
+
+int wxApp::m_nCmdShow = SW_SHOWNORMAL;
-int wxApp::MainLoop(void)
+// ---------------------------------------------------------------------------
+// wxWin macros
+// ---------------------------------------------------------------------------
+
+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()
+
+// class to ensure that wxAppBase::CleanUp() is called if our Initialize()
+// fails
+class wxCallBaseCleanup
{
- m_keepGoing = TRUE;
- while (m_keepGoing)
- {
- while (!::PeekMessage(&s_currentMsg, 0, 0, 0, PM_NOREMOVE) &&
- ProcessIdle()) {}
- if (!DoMessage())
- m_keepGoing = FALSE;
- }
+public:
+ wxCallBaseCleanup(wxApp *app) : m_app(app) { }
+ ~wxCallBaseCleanup() { if ( m_app ) m_app->wxAppBase::CleanUp(); }
- return s_currentMsg.wParam;
-}
+ void Dismiss() { m_app = NULL; }
+
+private:
+ wxApp *m_app;
+};
-// Returns TRUE if more time is needed.
-bool wxApp::ProcessIdle(void)
+//// Initialize
+bool wxApp::Initialize(int& argc, wxChar **argv)
{
- wxIdleEvent event;
- event.SetEventObject(this);
- ProcessEvent(event);
+ if ( !wxAppBase::Initialize(argc, argv) )
+ return false;
+
+ // ensure that base cleanup is done if we return too early
+ wxCallBaseCleanup callBaseCleanup(this);
+
+#ifdef __WXWINCE__
+ wxString tmp = GetAppName();
+ tmp += wxT("ClassName");
+ wxCanvasClassName = wxStrdup( tmp.wc_str() );
+ tmp += wxT("NR");
+ wxCanvasClassNameNR = wxStrdup( tmp.wc_str() );
+ HWND hWnd = FindWindow( wxCanvasClassNameNR, NULL );
+ if (hWnd)
+ {
+ SetForegroundWindow( (HWND)(((DWORD)hWnd)|0x01) );
+ return false;
+ }
+#endif
+
+#if !defined(__WXMICROWIN__)
+ InitCommonControls();
+#endif // !defined(__WXMICROWIN__)
+
+#if defined(__SMARTPHONE__) || defined(__POCKETPC__)
+ SHInitExtraControls();
+#endif
+
+#ifndef __WXWINCE__
+ // Don't show a message box if a function such as SHGetFileInfo
+ // fails to find a device.
+ SetErrorMode(SEM_FAILCRITICALERRORS|SEM_NOOPENFILEERRORBOX);
+#endif
+
+ wxOleInitialize();
+
+ RegisterWindowClasses();
+
+#if !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
+ wxSetKeyboardHook(true);
+#endif
- return event.MoreRequested();
+ callBaseCleanup.Dismiss();
+
+ return true;
}
-void wxApp::ExitMainLoop(void)
+// ---------------------------------------------------------------------------
+// RegisterWindowClasses
+// ---------------------------------------------------------------------------
+
+// This function registers the given class name and stores a pointer to a
+// heap-allocated copy of it at the specified location, it must be deleted
+// later.
+static void RegisterAndStoreClassName(const wxString& uniqueClassName,
+ const wxChar **className,
+ WNDCLASS *lpWndClass)
{
- m_keepGoing = FALSE;
+ const size_t length = uniqueClassName.length() + 1; // for trailing NUL
+ wxChar *newChars = new wxChar[length];
+ wxStrncpy(newChars, uniqueClassName, length);
+ *className = newChars;
+ lpWndClass->lpszClassName = *className;
+
+ if ( !::RegisterClass(lpWndClass) )
+ {
+ wxLogLastError(wxString::Format(wxT("RegisterClass(%s)"), newChars));
+ }
}
-bool wxApp::Pending(void)
+// This function registers the class defined by the provided WNDCLASS struct
+// contents using a unique name constructed from the specified base name and
+// and a suffix unique to this library instance. It also stores the generated
+// unique names for normal and "no redraw" versions of the class in the
+// provided variables, caller must delete their contents later.
+static void RegisterClassWithUniqueNames(const wxString& baseName,
+ const wxChar **className,
+ const wxChar **classNameNR,
+ WNDCLASS *lpWndClass)
{
- return (::PeekMessage(&s_currentMsg, 0, 0, 0, PM_NOREMOVE) != 0) ;
+ // 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 = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS;
+ static const long styleNoRedraw = CS_DBLCLKS;
+
+ const wxString uniqueSuffix(wxString::Format(wxT("@%p"), className));
+
+ wxString uniqueClassName(baseName + uniqueSuffix);
+ lpWndClass->style = styleNormal;
+ RegisterAndStoreClassName(uniqueClassName, className, lpWndClass);
+
+ // NB: remember that code elsewhere supposes that no redraw class names
+ // use the same names as normal classes with "NR" suffix so we must put
+ // "NR" at the end instead of using more natural baseName+"NR"+suffix
+ wxString uniqueClassNameNR(uniqueClassName + wxT("NR"));
+ lpWndClass->style = styleNoRedraw;
+ RegisterAndStoreClassName(uniqueClassNameNR, classNameNR, lpWndClass);
}
-void wxApp::Dispatch(void)
+// 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()
{
- if (!DoMessage())
- m_keepGoing = FALSE;
+ WNDCLASS wndclass;
+ wxZeroMemory(wndclass);
+
+ // the fields which are common to all classes
+ wndclass.lpfnWndProc = (WNDPROC)wxWndProc;
+ wndclass.hInstance = wxhInstance;
+ wndclass.hCursor = ::LoadCursor((HINSTANCE)NULL, IDC_ARROW);
+
+ // register the class for all normal windows and "no redraw" frames
+ wndclass.hbrBackground = (HBRUSH)(COLOR_BTNFACE + 1);
+ RegisterClassWithUniqueNames(wxT("wxWindowClass"),
+ &wxCanvasClassName,
+ &wxCanvasClassNameNR,
+ &wndclass);
+
+ // Register the MDI frame window class and "no redraw" MDI frame
+ wndclass.hbrBackground = (HBRUSH)NULL; // paint MDI frame ourselves
+ RegisterClassWithUniqueNames(wxT("wxMDIFrameClass"),
+ &wxMDIFrameClassName,
+ &wxMDIFrameClassNameNoRedraw,
+ &wndclass);
+
+ // Register the MDI child frame window class and "no redraw" MDI child frame
+ wndclass.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
+ RegisterClassWithUniqueNames(wxT("wxMDIChildFrameClass"),
+ &wxMDIChildFrameClassName,
+ &wxMDIChildFrameClassNameNoRedraw,
+ &wndclass);
+
+ return true;
}
-/*
- * Give all windows a chance to preprocess
- * the message. Some may have accelerator tables, or have
- * MDI complications.
- */
-bool wxApp::ProcessMessage(WXMSG *Msg)
-{
- MSG *msg = (MSG *)Msg;
+// ---------------------------------------------------------------------------
+// UnregisterWindowClasses
+// ---------------------------------------------------------------------------
- HWND hWnd;
+// This function unregisters the class with the given name and frees memory
+// allocated for it by RegisterAndStoreClassName().
+static bool UnregisterAndFreeClassName(const wxChar **ppClassName)
+{
+ bool retval = true;
- // Anyone for a message? Try youngest descendants first.
- for (hWnd = msg->hwnd; hWnd != NULL; hWnd = ::GetParent(hWnd))
- {
- wxWindow *wnd = wxFindWinFromHandle((WXHWND) hWnd);
- if (wnd)
+ if ( !::UnregisterClass(*ppClassName, wxhInstance) )
{
- if (wnd->MSWProcessMessage(Msg))
- return TRUE;
+ wxLogLastError(
+ wxString::Format(wxT("UnregisterClass(%s)"), *ppClassName));
- // STOP if we've reached the top of the hierarchy!
-// if (m_topWindow && (wnd == m_topWindow))
-// return FALSE;
+ retval = false;
}
- }
- // TODO: Is this now obsolete, given that m_topWindow may not be defined?
- // Does it do anything useful anyway?
-// if (m_topWindow && m_topWindow->MSWProcessMessage(Msg))
-// return TRUE;
- return FALSE;
+ delete [] (wxChar*) *ppClassName;
+ *ppClassName = NULL;
+
+ return retval;
}
-void wxApp::OnIdle(wxIdleEvent& event)
+bool wxApp::UnregisterWindowClasses()
{
- static bool inOnIdle = FALSE;
+ bool retval = true;
+
+#ifndef __WXMICROWIN__
+ if ( !UnregisterAndFreeClassName(&wxMDIFrameClassName) )
+ retval = false;
- // Avoid recursion (via ProcessEvent default case)
- if (inOnIdle)
- return;
+ if ( !UnregisterAndFreeClassName(&wxMDIFrameClassNameNoRedraw) )
+ retval = false;
- inOnIdle = TRUE;
+ if ( !UnregisterAndFreeClassName(&wxMDIChildFrameClassName) )
+ retval = false;
- // 'Garbage' collection of windows deleted with Close().
- DeletePendingObjects();
+ if ( !UnregisterAndFreeClassName(&wxMDIChildFrameClassNameNoRedraw) )
+ retval = false;
- // Send OnIdle events to all windows
- bool needMore = SendIdleEvents();
+ if ( !UnregisterAndFreeClassName(&wxCanvasClassName) )
+ retval = false;
- if (needMore)
- event.RequestMore(TRUE);
+ if ( !UnregisterAndFreeClassName(&wxCanvasClassNameNR) )
+ retval = false;
+#endif // __WXMICROWIN__
- inOnIdle = FALSE;
+ return retval;
}
-// Send idle event to all top-level windows
-bool wxApp::SendIdleEvents(void)
+void wxApp::CleanUp()
{
- bool needMore = FALSE;
- wxNode* node = wxTopLevelWindows.First();
- while (node)
- {
- wxWindow* win = (wxWindow*) node->Data();
- if (SendIdleEvents(win))
- needMore = TRUE;
+ // all objects pending for deletion must be deleted first, otherwise
+ // UnregisterWindowClasses() call wouldn't succeed (because windows
+ // using the classes being unregistered still exist), so call the base
+ // class method first and only then do our clean up
+ wxAppBase::CleanUp();
+
+#if !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
+ wxSetKeyboardHook(false);
+#endif
+
+ wxOleUninitialize();
+
+ // for an EXE the classes are unregistered when it terminates but DLL may
+ // be loaded several times (load/unload/load) into the same process in
+ // which case the registration will fail after the first time if we don't
+ // unregister the classes now
+ UnregisterWindowClasses();
- node = node->Next();
- }
- return needMore;
+#ifdef __WXWINCE__
+ free( wxCanvasClassName );
+ free( wxCanvasClassNameNR );
+#endif
}
-// Send idle event to window and all subwindows
-bool wxApp::SendIdleEvents(wxWindow* win)
-{
- bool needMore = FALSE;
+// ----------------------------------------------------------------------------
+// wxApp ctor/dtor
+// ----------------------------------------------------------------------------
- wxIdleEvent event;
- event.SetEventObject(win);
- win->ProcessEvent(event);
+wxApp::wxApp()
+{
+ m_printMode = wxPRINT_WINDOWS;
+}
- if (event.MoreRequested())
- needMore = TRUE;
+wxApp::~wxApp()
+{
+}
- wxNode* node = win->GetChildren()->First();
- while (node)
- {
- wxWindow* win = (wxWindow*) node->Data();
- if (SendIdleEvents(win))
- needMore = TRUE;
+// ----------------------------------------------------------------------------
+// wxApp idle handling
+// ----------------------------------------------------------------------------
- node = node->Next();
- }
- return needMore ;
+void wxApp::OnIdle(wxIdleEvent& WXUNUSED(event))
+{
+#if wxUSE_DC_CACHEING
+ // automated DC cache management: clear the cached DCs and bitmap
+ // if it's likely that the app has finished with them, that is, we
+ // get an idle event and we're not dragging anything.
+ if (!::GetKeyState(MK_LBUTTON) && !::GetKeyState(MK_MBUTTON) && !::GetKeyState(MK_RBUTTON))
+ wxMSWDCImpl::ClearCache();
+#endif // wxUSE_DC_CACHEING
}
-// Windows specific. Intercept keyboard input: by default,
-// route it to the active frame or dialog box.
-#if WXWIN_COMPATIBILITY == 2
-bool wxApp::OldOnCharHook(wxKeyEvent& event)
+void wxApp::WakeUpIdle()
{
- wxWindow *win = wxGetActiveWindow();
- if (win)
- return win->GetEventHandler()->OldOnCharHook(event);
- else
- return FALSE;
+ // Send the top window a dummy message so idle handler processing will
+ // start up again. Doing it this way ensures that the idle handler
+ // wakes up in the right thread (see also wxWakeUpMainThread() which does
+ // the same for the main app thread only)
+ wxWindow * const topWindow = wxTheApp->GetTopWindow();
+ if ( topWindow )
+ {
+ HWND hwndTop = GetHwndOf(topWindow);
+
+ // Do not post WM_NULL if there's already a pending WM_NULL to avoid
+ // overflowing the message queue.
+ //
+ // Notice that due to a limitation of PeekMessage() API (which handles
+ // 0,0 range specially), we have to check the range from 0-1 instead.
+ // This still makes it possible to overflow the queue with WM_NULLs by
+ // interspersing the calles to WakeUpIdle() with windows creation but
+ // it should be rather hard to do it accidentally.
+ MSG msg;
+ if ( !::PeekMessage(&msg, hwndTop, 0, 1, PM_NOREMOVE) ||
+ ::PeekMessage(&msg, hwndTop, 1, 1, PM_NOREMOVE) )
+ {
+ if ( !::PostMessage(hwndTop, WM_NULL, 0, 0) )
+ {
+ // should never happen
+ wxLogLastError(wxT("PostMessage(WM_NULL)"));
+ }
+ }
+ }
}
-#endif
-void wxApp::DeletePendingObjects(void)
+// ----------------------------------------------------------------------------
+// other wxApp event hanlders
+// ----------------------------------------------------------------------------
+
+void wxApp::OnEndSession(wxCloseEvent& WXUNUSED(event))
{
- wxNode *node = wxPendingDelete.First();
- while (node)
- {
- wxObject *obj = (wxObject *)node->Data();
-
- delete obj;
+ // Windows will terminate the process soon after we return from
+ // WM_ENDSESSION handler or when we delete our last window, so make sure we
+ // at least execute our cleanup code before
- if (wxPendingDelete.Member(obj))
- delete node;
+ // prevent the window from being destroyed when the corresponding wxTLW is
+ // destroyed: this will result in a leak of a HWND, of course, but who
+ // cares when the process is being killed anyhow
+ if ( !wxTopLevelWindows.empty() )
+ wxTopLevelWindows[0]->SetHWND(0);
- // Deleting one object may have deleted other pending
- // objects, so start from beginning of list again.
- node = wxPendingDelete.First();
- }
+ const int rc = OnExit();
+
+ wxEntryCleanup();
+
+ // calling exit() instead of ExitProcess() or not doing anything at all and
+ // being killed by Windows has the advantage of executing the dtors of
+ // global objects
+ exit(rc);
}
-/*
-// Free up font objects that are not being used at present.
-bool wxApp::DoResourceCleanup(void)
+// Default behaviour: close the application with prompts. The
+// user can veto the close, and therefore the end session.
+void wxApp::OnQueryEndSession(wxCloseEvent& event)
{
-// wxDebugMsg("ResourceCleanup\n");
-
- if (wxTheFontList)
- {
- wxNode *node = wxTheFontList->First();
- while (node)
+ if (GetTopWindow())
{
- wxGDIObject *obj = (wxGDIObject *)node->Data();
- if ((obj->GetResourceHandle() != 0) && (obj->GetResourceUsage() == 0))
- {
-// wxDebugMsg("Freeing font %ld (GDI object %d)\n", (long)obj, (int)obj->GetResourceHandle());
- obj->FreeResource();
- }
- node = node->Next();
+ if (!GetTopWindow()->Close(!event.CanVeto()))
+ event.Veto(true);
}
- }
- if (wxThePenList)
- {
- wxNode *node = wxThePenList->First();
- while (node)
+}
+
+// ----------------------------------------------------------------------------
+// system DLL versions
+// ----------------------------------------------------------------------------
+
+// these functions have trivial inline implementations for CE
+#ifndef __WXWINCE__
+
+#if wxUSE_DYNLIB_CLASS
+
+namespace
+{
+
+// helper function: retrieve the DLL version by using DllGetVersion(), returns
+// 0 if the DLL doesn't export such function
+int CallDllGetVersion(wxDynamicLibrary& dll)
+{
+ // now check if the function is available during run-time
+ wxDYNLIB_FUNCTION( DLLGETVERSIONPROC, DllGetVersion, dll );
+ if ( !pfnDllGetVersion )
+ return 0;
+
+ DLLVERSIONINFO dvi;
+ dvi.cbSize = sizeof(dvi);
+
+ HRESULT hr = (*pfnDllGetVersion)(&dvi);
+ if ( FAILED(hr) )
{
- wxGDIObject *obj = (wxGDIObject *)node->Data();
- if ((obj->GetResourceHandle() != 0) && (obj->GetResourceUsage() == 0))
- {
-// wxDebugMsg("Freeing pen %ld (GDI object %d)\n", (long)obj, (int)obj->GetResourceHandle());
- obj->FreeResource();
- }
- node = node->Next();
+ wxLogApiError(_T("DllGetVersion"), hr);
+
+ return 0;
}
- }
- if (wxTheBrushList)
- {
- wxNode *node = wxTheBrushList->First();
- while (node)
+
+ return 100*dvi.dwMajorVersion + dvi.dwMinorVersion;
+}
+
+} // anonymous namespace
+
+/* static */
+int wxApp::GetComCtl32Version()
+{
+ // cache the result
+ //
+ // NB: this is MT-ok as in the worst case we'd compute s_verComCtl32 twice,
+ // but as its value should be the same both times it doesn't matter
+ static int s_verComCtl32 = -1;
+
+ if ( s_verComCtl32 == -1 )
{
- wxGDIObject *obj = (wxGDIObject *)node->Data();
- if ((obj->GetResourceHandle() != 0) && (obj->GetResourceUsage() == 0))
- {
-// wxDebugMsg("Freeing brush %ld (GDI object %d)\n", (long)obj, (int)obj->GetResourceHandle());
- obj->FreeResource();
- }
- node = node->Next();
+ // we're prepared to handle the errors
+ wxLogNull noLog;
+
+ // the DLL should really be available
+ wxDynamicLibrary dllComCtl32(_T("comctl32.dll"), wxDL_VERBATIM);
+ if ( !dllComCtl32.IsLoaded() )
+ {
+ s_verComCtl32 = 0;
+ return 0;
+ }
+
+ // try DllGetVersion() for recent DLLs
+ s_verComCtl32 = CallDllGetVersion(dllComCtl32);
+
+ // if DllGetVersion() is unavailable either during compile or
+ // run-time, try to guess the version otherwise
+ if ( !s_verComCtl32 )
+ {
+ // InitCommonControlsEx is unique to 4.70 and later
+ void *pfn = dllComCtl32.GetSymbol(_T("InitCommonControlsEx"));
+ if ( !pfn )
+ {
+ // not found, must be 4.00
+ s_verComCtl32 = 400;
+ }
+ else // 4.70+
+ {
+ // many symbols appeared in comctl32 4.71, could use any of
+ // them except may be DllInstall()
+ pfn = dllComCtl32.GetSymbol(_T("InitializeFlatSB"));
+ if ( !pfn )
+ {
+ // not found, must be 4.70
+ s_verComCtl32 = 470;
+ }
+ else
+ {
+ // found, must be 4.71 or later
+ s_verComCtl32 = 471;
+ }
+ }
+ }
}
- }
- SetPendingCleanup(FALSE);
- return FALSE;
+ return s_verComCtl32;
}
-*/
-wxLog* wxApp::CreateLogTarget(void)
+/* static */
+int wxApp::GetShell32Version()
{
- return new wxLogGui;
+ static int s_verShell32 = -1;
+ if ( s_verShell32 == -1 )
+ {
+ // we're prepared to handle the errors
+ wxLogNull noLog;
+
+ wxDynamicLibrary dllShell32(_T("shell32.dll"), wxDL_VERBATIM);
+ if ( dllShell32.IsLoaded() )
+ {
+ s_verShell32 = CallDllGetVersion(dllShell32);
+
+ if ( !s_verShell32 )
+ {
+ // there doesn't seem to be any way to distinguish between 4.00
+ // and 4.70 (starting from 4.71 we have DllGetVersion()) so
+ // just assume it is 4.0
+ s_verShell32 = 400;
+ }
+ }
+ else // failed load the DLL?
+ {
+ s_verShell32 = 0;
+ }
+ }
+
+ return s_verShell32;
}
-wxWindow* wxApp::GetTopWindow(void) const
+#else // !wxUSE_DYNLIB_CLASS
+
+/* static */
+int wxApp::GetComCtl32Version()
{
- if (m_topWindow)
- return m_topWindow;
- else if (wxTopLevelWindows.Number() > 0)
- return (wxWindow*) wxTopLevelWindows.First()->Data();
- else
- return NULL;
+ return 0;
}
-void wxExit(void)
+/* static */
+int wxApp::GetShell32Version()
{
- wxApp::CleanUp();
- FatalAppExit(0, "Fatal error: exiting");
+ return 0;
}
+#endif // wxUSE_DYNLIB_CLASS/!wxUSE_DYNLIB_CLASS
+
+#endif // !__WXWINCE__
+
+// ----------------------------------------------------------------------------
// Yield to incoming messages
-bool wxYield(void)
+// ----------------------------------------------------------------------------
+
+bool wxApp::Yield(bool onlyIfNeeded)
{
- MSG msg;
- // We want to go back to the main message loop
- // if we see a WM_QUIT. (?)
- while (PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE) && msg.message != WM_QUIT)
- {
- if (!wxTheApp->DoMessage())
- break;
- }
+ // MT-FIXME
+ static bool s_inYield = false;
+
+#if wxUSE_LOG
+ // disable log flushing from here because a call to wxYield() shouldn't
+ // normally result in message boxes popping up &c
+ wxLog::Suspend();
+#endif // wxUSE_LOG
+
+ if ( s_inYield )
+ {
+ if ( !onlyIfNeeded )
+ {
+ wxFAIL_MSG( wxT("wxYield called recursively" ) );
+ }
+
+ return false;
+ }
+
+ s_inYield = true;
+
+ // we don't want to process WM_QUIT from here - it should be processed in
+ // the main event loop in order to stop it
+ wxEventLoopGuarantor dummyLoopIfNeeded;
+ MSG msg;
+ while ( PeekMessage(&msg, (HWND)0, 0, 0, PM_NOREMOVE) &&
+ msg.message != WM_QUIT )
+ {
+#if wxUSE_THREADS
+ wxMutexGuiLeaveOrEnter();
+#endif // wxUSE_THREADS
- return TRUE;
+ if ( !wxTheApp->Dispatch() )
+ break;
+ }
+
+ // if there are pending events, we must process them.
+ ProcessPendingEvents();
+
+#if wxUSE_LOG
+ // let the logs be flashed again
+ wxLog::Resume();
+#endif // wxUSE_LOG
+
+ s_inYield = false;
+
+ return true;
}
-HINSTANCE wxGetInstance()
+#if wxUSE_EXCEPTIONS
+
+// ----------------------------------------------------------------------------
+// exception handling
+// ----------------------------------------------------------------------------
+
+bool wxApp::OnExceptionInMainLoop()
{
- return wxhInstance;
-}
+ // ask the user about what to do: use the Win32 API function here as it
+ // could be dangerous to use any wxWidgets code in this state
+ switch (
+ ::MessageBox
+ (
+ NULL,
+ _T("An unhandled exception occurred. Press \"Abort\" to \
+terminate the program,\r\n\
+\"Retry\" to exit the program normally and \"Ignore\" to try to continue."),
+ _T("Unhandled exception"),
+ MB_ABORTRETRYIGNORE |
+ MB_ICONERROR|
+ MB_TASKMODAL
+ )
+ )
+ {
+ case IDABORT:
+ throw;
-// For some reason, with MSVC++ 1.5, WinMain isn't linked in properly
-// if in a separate file. So include it here to ensure it's linked.
-#if (defined(_MSC_VER) && !defined(__WIN32__)) || defined(__GNUWIN32__)
-#include "main.cpp"
-#endif
+ default:
+ wxFAIL_MSG( _T("unexpected MessageBox() return code") );
+ // fall through
-#undef IN_WX_MAIN_CPP
+ case IDRETRY:
+ return false;
+
+ case IDIGNORE:
+ return true;
+ }
+}
+#endif // wxUSE_EXCEPTIONS
projects / wxWidgets.git / blobdiff