/////////////////////////////////////////////////////////////////////////////
-// 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
/////////////////////////////////////////////////////////////////////////////
// ===========================================================================
// headers
// ---------------------------------------------------------------------------
-#ifdef __GNUG__
- #pragma implementation "app.h"
-#endif
-
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#endif
#ifndef WX_PRECOMP
+ #include "wx/msw/wrapcctl.h"
+ #include "wx/dynarray.h"
#include "wx/frame.h"
#include "wx/app.h"
#include "wx/utils.h"
#include "wx/dialog.h"
#include "wx/msgdlg.h"
#include "wx/intl.h"
- #include "wx/dynarray.h"
+ #include "wx/wxchar.h"
+ #include "wx/log.h"
+ #include "wx/module.h"
#endif
-#include "wx/msw/private.h"
-#include "wx/log.h"
-#include "wx/module.h"
+#include "wx/apptrait.h"
+#include "wx/filename.h"
+#include "wx/dynlib.h"
+#include "wx/evtloop.h"
-#if wxUSE_THREADS
- #include "wx/thread.h"
-
- // define the array of MSG strutures
- WX_DECLARE_OBJARRAY(MSG, wxMsgArray);
-
- #include "wx/arrimpl.cpp"
-
- WX_DEFINE_OBJARRAY(wxMsgArray);
-#endif // wxUSE_THREADS
+#include "wx/msw/private.h"
+#include "wx/msw/ole/oleutils.h"
-#if wxUSE_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...
-#if defined(__GNUWIN32__) || defined(__SC__) || defined(__SALFORDC__)
+// 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__) || defined(__SALFORDC__)
#undef wxUSE_OLE
#define wxUSE_OLE 0
#endif // broken compilers
+#if defined(__POCKETPC__) || defined(__SMARTPHONE__)
+ #include <ole2.h>
+ #include <aygshell.h>
+#endif
+
#if wxUSE_OLE
#include <ole2.h>
#endif
#include <string.h>
#include <ctype.h>
-#if (defined(__WIN95__) && !defined(__GNUWIN32__)) || defined(__TWIN32__)
- #include <commctrl.h>
+// For MB_TASKMODAL
+#ifdef __WXWINCE__
+#include "wx/msw/wince/missing.h"
#endif
-#include "wx/msw/msvcrt.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_*
+ };
+
+ typedef HRESULT (CALLBACK* DLLGETVERSIONPROC)(DLLVERSIONINFO *);
+#endif // defined(DLLVERSIONINFO)
+
// ---------------------------------------------------------------------------
// global variables
// ---------------------------------------------------------------------------
-extern char *wxBuffer;
-extern char *wxOsVersion;
-extern wxList *wxWinHandleList;
-extern wxList WXDLLEXPORT wxPendingDelete;
+#if !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
extern void wxSetKeyboardHook(bool doIt);
-extern wxCursor *g_globalCursor;
-
-HINSTANCE wxhInstance = 0;
-static MSG s_currentMsg;
-wxApp *wxTheApp = NULL;
-
-// FIXME why not const? and not static?
-char wxFrameClassName[] = "wxFrameClass";
-char wxMDIFrameClassName[] = "wxMDIFrameClass";
-char wxMDIChildFrameClassName[] = "wxMDIChildFrameClass";
-char wxPanelClassName[] = "wxPanelClass";
-char wxCanvasClassName[] = "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;
-
-LRESULT APIENTRY wxWndProc(HWND, UINT, WPARAM, LPARAM);
+#endif
-#if defined(__WIN95__) && !defined(__TWIN32__)
- #define wxUSE_RICHEDIT 1
+// 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
- #define wxUSE_RICHEDIT 0
+WXDLLIMPEXP_CORE const wxChar *wxCanvasClassName = wxT("wxWindowClass");
+WXDLLIMPEXP_CORE const wxChar *wxCanvasClassNameNR = wxT("wxWindowClassNR");
#endif
+WXDLLIMPEXP_CORE const wxChar *wxMDIFrameClassName = wxT("wxMDIFrameClass");
+WXDLLIMPEXP_CORE const wxChar *wxMDIFrameClassNameNoRedraw = wxT("wxMDIFrameClassNR");
+WXDLLIMPEXP_CORE const wxChar *wxMDIChildFrameClassName = wxT("wxMDIChildFrameClass");
+WXDLLIMPEXP_CORE const wxChar *wxMDIChildFrameClassNameNoRedraw = wxT("wxMDIChildFrameClassNR");
-#if wxUSE_RICHEDIT
- static HINSTANCE gs_hRichEdit = (HINSTANCE) NULL;
-#endif
+// ----------------------------------------------------------------------------
+// private functions
+// ----------------------------------------------------------------------------
+
+LRESULT WXDLLEXPORT APIENTRY wxWndProc(HWND, UINT, WPARAM, LPARAM);
// ===========================================================================
-// implementation
+// wxGUIAppTraits implementation
// ===========================================================================
-// ---------------------------------------------------------------------------
-// wxApp
-// ---------------------------------------------------------------------------
+// private class which we use to pass parameters from BeforeChildWaitLoop() to
+// AfterChildWaitLoop()
+struct ChildWaitLoopData
+{
+ ChildWaitLoopData(wxWindowDisabler *wd_, wxWindow *winActive_)
+ {
+ wd = wd_;
+ winActive = winActive_;
+ }
-#if !USE_SHARED_LIBRARY
- IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler)
+ wxWindowDisabler *wd;
+ wxWindow *winActive;
+};
- BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
- EVT_IDLE(wxApp::OnIdle)
- EVT_END_SESSION(wxApp::OnEndSession)
- EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession)
- END_EVENT_TABLE()
-#endif
+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);
+}
-long wxApp::sm_lastMessageTime = 0;
+void wxGUIAppTraits::AlwaysYield()
+{
+ wxYield();
+}
-//// Initialize
-bool wxApp::Initialize()
+void wxGUIAppTraits::AfterChildWaitLoop(void *dataOrig)
{
- // Some people may wish to use this, but
- // probably it shouldn't be here by default.
-#ifdef __WXDEBUG__
- // wxRedirectIOToConsole();
-#endif
+ wxEndBusyCursor();
- wxBuffer = new char[1500]; // FIXME
+ ChildWaitLoopData * const data = (ChildWaitLoopData *)dataOrig;
- wxClassInfo::InitializeClasses();
+ delete data->wd;
-#if wxUSE_RESOURCES
- wxGetResource("wxWindows", "OsVersion", &wxOsVersion);
-#endif
+ // 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();
- wxTheColourDatabase = new wxColourDatabase(wxKEY_STRING);
- wxTheColourDatabase->Initialize();
+ // also delete the temporary data object itself
+ delete data;
+}
- wxInitializeStockLists();
- wxInitializeStockObjects();
+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
+ wxEventLoop *evtLoop = wxEventLoop::GetActive();
+ if ( !evtLoop || !evtLoop->Pending() )
+ {
+ // no events means no quit event
+ return true;
+ }
-#if wxUSE_WX_RESOURCES
- wxInitializeResourceSystem();
+ return evtLoop->Dispatch();
+}
+
+wxPortId wxGUIAppTraits::GetToolkitVersion(int *majVer, int *minVer) const
+{
+ OSVERSIONINFO info;
+ wxZeroMemory(info);
+
+ // 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;
+ }
+
+#if defined(__WXHANDHELD__) || defined(__WXWINCE__)
+ return wxPORT_WINCE;
+#else
+ return wxPORT_MSW;
#endif
+}
- wxBitmap::InitStandardHandlers();
+// ===========================================================================
+// wxApp implementation
+// ===========================================================================
-#if defined(__WIN95__)
- InitCommonControls();
+int wxApp::m_nCmdShow = SW_SHOWNORMAL;
-#if wxUSE_RICHEDIT
- gs_hRichEdit = LoadLibrary("RICHED32.DLL");
+// ---------------------------------------------------------------------------
+// wxWin macros
+// ---------------------------------------------------------------------------
- if (gs_hRichEdit == (HINSTANCE) NULL)
- {
- wxLogError(_("Could not initialise Rich Edit DLL"));
- }
-#endif // wxUSE_RICHEDIT
+IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler)
-#endif // __WIN95__
+BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
+ EVT_IDLE(wxApp::OnIdle)
+ EVT_END_SESSION(wxApp::OnEndSession)
+ EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession)
+END_EVENT_TABLE()
- // for OLE, enlarge message queue to be as large as possible
- int iMsg = 96;
- while (!SetMessageQueue(iMsg) && (iMsg -= 8));
+// class to ensure that wxAppBase::CleanUp() is called if our Initialize()
+// fails
+class wxCallBaseCleanup
+{
+public:
+ wxCallBaseCleanup(wxApp *app) : m_app(app) { }
+ ~wxCallBaseCleanup() { if ( m_app ) m_app->wxAppBase::CleanUp(); }
- /*
- DWORD dwOleVer;
- dwOleVer = CoBuildVersion();
+ void Dismiss() { m_app = NULL; }
- // check the OLE library version
- if (rmm != HIWORD(dwOleVer))
+private:
+ wxApp *m_app;
+};
+
+//// Initialize
+bool wxApp::Initialize(int& argc, wxChar **argv)
+{
+ 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.c_str() );
+ tmp += wxT("NR");
+ wxCanvasClassNameNR = wxStrdup( tmp.c_str() );
+ HWND hWnd = FindWindow( wxCanvasClassNameNR, NULL );
+ if (hWnd)
{
- wxMessageBox("Incorrect version of OLE libraries.");
- return FALSE;
+ SetForegroundWindow( (HWND)(((DWORD)hWnd)|0x01) );
+ return false;
}
- */
-
-#if wxUSE_OLE
- // we need to initialize OLE library
- if ( FAILED(::OleInitialize(NULL)) )
- wxLogError(_("Cannot initialize OLE"));
#endif
-#if wxUSE_CTL3D
- if (!Ctl3dRegister(wxhInstance))
- wxLogError("Cannot register CTL3D");
+#if !defined(__WXMICROWIN__)
+ InitCommonControls();
+#endif // !defined(__WXMICROWIN__)
- Ctl3dAutoSubclass(wxhInstance);
+#if defined(__SMARTPHONE__) || defined(__POCKETPC__)
+ SHInitExtraControls();
#endif
- g_globalCursor = new wxCursor;
-
- wxSTD_FRAME_ICON = LoadIcon(wxhInstance, "wxSTD_FRAME");
- wxSTD_MDIPARENTFRAME_ICON = LoadIcon(wxhInstance, "wxSTD_MDIPARENTFRAME");
- wxSTD_MDICHILDFRAME_ICON = LoadIcon(wxhInstance, "wxSTD_MDICHILDFRAME");
+#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
- wxDEFAULT_FRAME_ICON = LoadIcon(wxhInstance, "wxDEFAULT_FRAME");
- wxDEFAULT_MDIPARENTFRAME_ICON = LoadIcon(wxhInstance, "wxDEFAULT_MDIPARENTFRAME");
- wxDEFAULT_MDICHILDFRAME_ICON = LoadIcon(wxhInstance, "wxDEFAULT_MDICHILDFRAME");
+ wxOleInitialize();
RegisterWindowClasses();
- // Create the brush for disabling bitmap buttons
+ wxWinHandleHash = new wxWinHashTable(wxKEY_INTEGER, 100);
- LOGBRUSH lb ;
- lb.lbStyle = BS_PATTERN;
- lb.lbHatch = (int)LoadBitmap( wxhInstance, "wxDISABLE_BUTTON_BITMAP" ) ;
- wxDisableButtonBrush = ::CreateBrushIndirect( & lb ) ;
- ::DeleteObject( (HGDIOBJ)lb.lbHatch ) ;
-
-#if wxUSE_PENWINDOWS
- wxRegisterPenWin();
+#if !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
+ wxSetKeyboardHook(true);
#endif
- wxWinHandleList = new wxList(wxKEY_INTEGER);
+ callBaseCleanup.Dismiss();
- // This is to foil optimizations in Visual C++ that throw out dummy.obj.
- // PLEASE DO NOT ALTER THIS.
-#if defined(__VISUALC__) && !defined(WXMAKINGDLL)
- extern char wxDummyChar;
- if (wxDummyChar) wxDummyChar++;
-#endif
-
- wxSetKeyboardHook(TRUE);
-
- wxModule::RegisterModules();
- if (!wxModule::InitializeModules())
- return FALSE;
- return TRUE;
+ return true;
}
-//// RegisterWindowClasses
+// ---------------------------------------------------------------------------
+// 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()
{
- ///////////////////////////////////////////////////////////////////////
- // Register the frame window class.
- WNDCLASS wndclass; // Structure used to register Windows class.
+ WNDCLASS wndclass;
+ wxZeroMemory(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 = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS;
+ static const long styleNoRedraw = CS_DBLCLKS;
- wndclass.style = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS ;
+ // the fields which are common to all classes
wndclass.lpfnWndProc = (WNDPROC)wxWndProc;
- wndclass.cbClsExtra = 0;
- wndclass.cbWndExtra = sizeof( DWORD ); // was 4
wndclass.hInstance = wxhInstance;
- wndclass.hIcon = (HICON) NULL; // wxSTD_FRAME_ICON;
- wndclass.hCursor = LoadCursor( (HINSTANCE) NULL, IDC_ARROW );
- wndclass.hbrBackground = (HBRUSH)(COLOR_APPWORKSPACE+1) ;
- // wndclass.hbrBackground = GetStockObject( WHITE_BRUSH );
- wndclass.lpszMenuName = NULL;
-#ifdef _MULTIPLE_INSTANCES
- sprintf( wxFrameClassName,"wxFrameClass%d", wxhInstance );
-#endif
- wndclass.lpszClassName = wxFrameClassName;
+ wndclass.hCursor = ::LoadCursor((HINSTANCE)NULL, IDC_ARROW);
+
+ // register the class for all normal windows
+ wndclass.hbrBackground = (HBRUSH)(COLOR_BTNFACE + 1);
+ wndclass.lpszClassName = wxCanvasClassName;
+ wndclass.style = styleNormal;
+
+ if ( !RegisterClass(&wndclass) )
+ {
+ wxLogLastError(wxT("RegisterClass(frame)"));
+ }
- if (!RegisterClass( &wndclass ))
+ // "no redraw" frame
+ wndclass.lpszClassName = wxCanvasClassNameNR;
+ wndclass.style = styleNoRedraw;
+
+ if ( !RegisterClass(&wndclass) )
{
- // wxFatalError("Can't register Frame Window class");
+ wxLogLastError(wxT("RegisterClass(no redraw frame)"));
}
- ///////////////////////////////////////////////////////////////////////
// Register the MDI frame window class.
- WNDCLASS wndclass1; // Structure used to register Windows class.
-
- wndclass1.style = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS ;
- wndclass1.lpfnWndProc = (WNDPROC)wxWndProc;
- wndclass1.cbClsExtra = 0;
- wndclass1.cbWndExtra = sizeof( DWORD ); // was 4
- wndclass1.hInstance = wxhInstance;
- wndclass1.hIcon = (HICON) NULL; // wxSTD_MDIPARENTFRAME_ICON;
- wndclass1.hCursor = LoadCursor( (HINSTANCE) NULL, IDC_ARROW );
- // wndclass1.hbrBackground = (HBRUSH)(COLOR_APPWORKSPACE+1) ;
- wndclass1.hbrBackground = (HBRUSH) NULL;
- wndclass1.lpszMenuName = NULL;
-
- wndclass1.lpszClassName = wxMDIFrameClassName;
- if (!RegisterClass( &wndclass1 ))
+ wndclass.hbrBackground = (HBRUSH)NULL; // paint MDI frame ourselves
+ wndclass.lpszClassName = wxMDIFrameClassName;
+ wndclass.style = styleNormal;
+
+ if ( !RegisterClass(&wndclass) )
{
- // wxFatalError("Can't register MDI Frame window class");
- // return FALSE;
+ wxLogLastError(wxT("RegisterClass(MDI parent)"));
}
- ///////////////////////////////////////////////////////////////////////
- // Register the MDI child frame window class.
- WNDCLASS wndclass4; // Structure used to register Windows class.
-
- wndclass4.style = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS ;
- wndclass4.lpfnWndProc = (WNDPROC)wxWndProc;
- wndclass4.cbClsExtra = 0;
- wndclass4.cbWndExtra = sizeof( DWORD ); // was 4
- wndclass4.hInstance = wxhInstance;
- wndclass4.hIcon = (HICON) NULL; // wxSTD_MDICHILDFRAME_ICON;
- wndclass4.hCursor = LoadCursor( (HINSTANCE) 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 ))
+ // "no redraw" MDI frame
+ wndclass.lpszClassName = wxMDIFrameClassNameNoRedraw;
+ wndclass.style = styleNoRedraw;
+
+ if ( !RegisterClass(&wndclass) )
{
- // wxFatalError("Can't register MDI child frame window class");
- // return FALSE;
+ wxLogLastError(wxT("RegisterClass(no redraw MDI parent frame)"));
}
- ///////////////////////////////////////////////////////////////////////
- // Register the panel window class.
- WNDCLASS wndclass2; // Structure used to register Windows class.
- memset(&wndclass2, 0, sizeof(WNDCLASS)); // start with NULL defaults
- wndclass2.style = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS ;
- wndclass2.lpfnWndProc = (WNDPROC)wxWndProc;
- wndclass2.cbClsExtra = 0;
- wndclass2.cbWndExtra = sizeof( DWORD ); // was 4
- wndclass2.hInstance = wxhInstance;
- wndclass2.hIcon = (HICON) NULL;
- wndclass2.hCursor = LoadCursor( (HINSTANCE) NULL, IDC_ARROW );
- // wndclass2.hbrBackground = (HBRUSH)(COLOR_BTNFACE+1) ;
- wndclass2.hbrBackground = (HBRUSH) GetStockObject( LTGRAY_BRUSH );
- wndclass2.lpszMenuName = NULL;
- wndclass2.lpszClassName = wxPanelClassName;
- if (!RegisterClass( &wndclass2 ))
+ // Register the MDI child frame window class.
+ wndclass.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
+ wndclass.lpszClassName = wxMDIChildFrameClassName;
+ wndclass.style = styleNormal;
+
+ if ( !RegisterClass(&wndclass) )
{
- // wxFatalError("Can't register Panel Window class");
- // return FALSE;
+ wxLogLastError(wxT("RegisterClass(MDI child)"));
}
- ///////////////////////////////////////////////////////////////////////
- // 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 = (HICON) NULL;
- wndclass3.hCursor = LoadCursor( (HINSTANCE) NULL, IDC_ARROW );
- // wndclass3.hbrBackground = (HBRUSH)(COLOR_WINDOW+1) ;
- wndclass3.hbrBackground = (HBRUSH) NULL;
- wndclass3.lpszMenuName = NULL;
- wndclass3.lpszClassName = wxCanvasClassName;
- if (!RegisterClass( &wndclass3))
+ // "no redraw" MDI child frame
+ wndclass.lpszClassName = wxMDIChildFrameClassNameNoRedraw;
+ wndclass.style = styleNoRedraw;
+
+ if ( !RegisterClass(&wndclass) )
{
- // wxFatalError("Can't register Canvas class");
- // return FALSE;
+ wxLogLastError(wxT("RegisterClass(no redraw MDI child)"));
}
- return TRUE;
+ return true;
}
-//// Convert Windows to argc, argv style
+// ---------------------------------------------------------------------------
+// UnregisterWindowClasses
+// ---------------------------------------------------------------------------
-void wxApp::ConvertToStandardCommandArgs(char* lpCmdLine)
+bool wxApp::UnregisterWindowClasses()
{
- wxStringList args;
+ bool retval = true;
- wxString cmdLine(lpCmdLine);
- int count = 0;
+#ifndef __WXMICROWIN__
+ // MDI frame window class.
+ if ( !::UnregisterClass(wxMDIFrameClassName, wxhInstance) )
+ {
+ wxLogLastError(wxT("UnregisterClass(MDI parent)"));
- // Get application name
- char name[260]; // 260 is MAX_PATH value from windef.h
- ::GetModuleFileName(wxhInstance, name, WXSIZEOF(name));
+ retval = false;
+ }
- // GNUWIN32 already fills in the first arg with the application name.
- // JACS: apparently not now (b20 and above?)
-#if 0 // !defined(__GNUWIN32__)
- args.Add(name);
- count ++;
-#endif
+ // "no redraw" MDI frame
+ if ( !::UnregisterClass(wxMDIFrameClassNameNoRedraw, wxhInstance) )
+ {
+ wxLogLastError(wxT("UnregisterClass(no redraw MDI parent frame)"));
- strcpy(name, wxFileNameFromPath(name));
- wxStripExtension(name);
- wxTheApp->SetAppName(name);
+ retval = false;
+ }
- // Break up string
- // Treat strings enclosed in double-quotes as single arguments
- int i = 0;
- int len = cmdLine.Length();
- while (i < len)
+ // MDI child frame window class.
+ if ( !::UnregisterClass(wxMDIChildFrameClassName, wxhInstance) )
{
- // Skip whitespace
- while ((i < len) && isspace(cmdLine.GetChar(i)))
- i ++;
-
- if (i < len)
- {
- if (cmdLine.GetChar(i) == '"') // We found the start of a string
- {
- i ++;
- int first = i;
- while ((i < len) && (cmdLine.GetChar(i) != '"'))
- i ++;
+ wxLogLastError(wxT("UnregisterClass(MDI child)"));
- wxString arg(cmdLine.Mid(first, (i - first)));
+ retval = false;
+ }
- args.Add(arg);
- count ++;
+ // "no redraw" MDI child frame
+ if ( !::UnregisterClass(wxMDIChildFrameClassNameNoRedraw, wxhInstance) )
+ {
+ wxLogLastError(wxT("UnregisterClass(no redraw MDI child)"));
- if (i < len)
- i ++; // Skip past 2nd quote
- }
- else // Unquoted argument
- {
- int first = i;
- while ((i < len) && !isspace(cmdLine.GetChar(i)))
- i ++;
+ retval = false;
+ }
- wxString arg(cmdLine.Mid(first, (i - first)));
+ // canvas class name
+ if ( !::UnregisterClass(wxCanvasClassName, wxhInstance) )
+ {
+ wxLogLastError(wxT("UnregisterClass(canvas)"));
- args.Add(arg);
- count ++;
- }
- }
+ retval = false;
}
- wxTheApp->argv = new char*[count + 1];
- for (i = 0; i < count; i++)
+ if ( !::UnregisterClass(wxCanvasClassNameNR, wxhInstance) )
{
- wxString arg(args[i]);
- wxTheApp->argv[i] = copystring((const char*)arg);
+ wxLogLastError(wxT("UnregisterClass(no redraw canvas)"));
+
+ retval = false;
}
- wxTheApp->argv[count] = NULL; // argv[] is a NULL-terminated list
- wxTheApp->argc = count;
-}
+#endif // __WXMICROWIN__
-//// Cleans up any wxWindows internal structures left lying around
+ return retval;
+}
void wxApp::CleanUp()
{
- //// COMMON CLEANUP
-
- // 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);
-
- // One last chance for pending objects to be cleaned up
- wxTheApp->DeletePendingObjects();
-
- wxModule::CleanUpModules();
-
-#if wxUSE_WX_RESOURCES
- wxCleanUpResourceSystem();
-
- // wxDefaultResourceTable->ClearTable();
+ // all objects pending for deletion must be deleted first, otherwise we
+ // would crash when they use wxWinHandleHash (and UnregisterWindowClasses()
+ // call wouldn't succeed as long as any windows 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
- // 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();
+ wxOleUninitialize();
- delete[] wxBuffer;
- wxBuffer = NULL;
+ // 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();
- //// WINDOWS-SPECIFIC CLEANUP
+ delete wxWinHandleHash;
+ wxWinHandleHash = NULL;
- wxSetKeyboardHook(FALSE);
-
-#ifdef __WIN95__
-
-#if wxUSE_RICHEDIT
- if (gs_hRichEdit != (HINSTANCE) NULL)
- FreeLibrary(gs_hRichEdit);
+#ifdef __WXWINCE__
+ free( wxCanvasClassName );
+ free( wxCanvasClassNameNR );
#endif
-
-#endif
-
-#if wxUSE_PENWINDOWS
- wxCleanUpPenWin();
-#endif
-
- 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 wxUSE_OLE
- ::OleUninitialize();
-#endif
-
-#if wxUSE_CTL3D
- Ctl3dUnregister(wxhInstance);
-#endif
-
- if (wxWinHandleList)
- delete wxWinHandleList ;
-
- 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() > 0)
- {
- wxLogDebug("There were memory leaks.");
- wxDebugContext::Dump();
- wxDebugContext::PrintStatistics();
- }
- // wxDebugContext::SetStream(NULL, NULL);
-#endif
-
- // do it as the very last thing because everything else can log messages
- delete wxLog::SetActiveTarget(NULL);
}
-#if !defined(_WINDLL) || (defined(_WINDLL) && defined(WXMAKINGDLL))
-
-// temporarily disable this warning which would be generated in release builds
-// because of __try
-#ifdef __VISUALC__
- #pragma warning(disable: 4715) // not all control paths return a value
-#endif // Visual C++
+// ----------------------------------------------------------------------------
+// wxApp ctor/dtor
+// ----------------------------------------------------------------------------
-//// Main wxWindows entry point
-int wxEntry(WXHINSTANCE hInstance,
- WXHINSTANCE WXUNUSED(hPrevInstance),
- char *lpCmdLine,
- int nCmdShow,
- bool enterLoop)
+wxApp::wxApp()
{
- // 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)
- 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!
-#if !defined(__WXDEBUG__) && defined(__VISUALC__)
- #define CATCH_PROGRAM_EXCEPTIONS
-
- __try {
-#else
- #undef CATCH_PROGRAM_EXCEPTIONS
-#endif
-
- 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,
- "No initializer - use IMPLEMENT_APP macro." );
-
- wxTheApp = (*wxApp::GetInitializerFunction()) ();
- }
-
- wxCHECK_MSG( wxTheApp, 0, "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;
-
-#ifdef CATCH_PROGRAM_EXCEPTIONS
- }
- __except ( EXCEPTION_EXECUTE_HANDLER ) {
- /*
- if ( wxTheApp )
- wxTheApp->OnFatalException();
- */
-
- // using wxLog would be unsafe here
- ::MessageBox(NULL,
- _("Unrecoverable program error detected: "
- " the application will terminate."),
- _("Fatal Error"),
- MB_APPLMODAL | MB_ICONSTOP | MB_OK);
-
- ::ExitProcess(3); // the same exit code as abort()
-
- // NOTREACHED
- }
-#endif // CATCH_PROGRAM_EXCEPTIONS
+ m_printMode = wxPRINT_WINDOWS;
}
-// restore warning state
-#ifdef __VISUALC__
- #pragma warning(default: 4715) // not all control paths return a value
-#endif // Visual C++
-
-#else /* _WINDLL */
-
-//// Entry point for DLLs
-
-int wxEntry(WXHINSTANCE hInstance)
+wxApp::~wxApp()
{
- 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();
+// ----------------------------------------------------------------------------
+// wxApp idle handling
+// ----------------------------------------------------------------------------
- wxTheApp->OnInit();
+void wxApp::OnIdle(wxIdleEvent& event)
+{
+ wxAppBase::OnIdle(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))
+ wxDC::ClearCache();
+#endif // wxUSE_DC_CACHEING
+}
+void wxApp::WakeUpIdle()
+{
+ // 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 *topWindow = wxTheApp->GetTopWindow();
- if ( topWindow && topWindow->GetHWND())
+ if ( topWindow )
{
- topWindow->Show(TRUE);
+ if ( !::PostMessage(GetHwndOf(topWindow), WM_NULL, 0, 0) )
+ {
+ // should never happen
+ wxLogLastError(wxT("PostMessage(WM_NULL)"));
+ }
}
-
- return 1;
}
-#endif // _WINDLL
-
-//// Static member initialization
-wxAppInitializerFunction wxApp::m_appInitFn = (wxAppInitializerFunction) NULL;
+// ----------------------------------------------------------------------------
+// other wxApp event hanlders
+// ----------------------------------------------------------------------------
-wxApp::wxApp()
+void wxApp::OnEndSession(wxCloseEvent& WXUNUSED(event))
{
- m_topWindow = NULL;
- wxTheApp = this;
- m_className = "";
- m_wantDebugOutput = TRUE ;
- m_appName = "";
- argc = 0;
- argv = NULL;
-#ifdef __WXMSW__
- m_printMode = wxPRINT_WINDOWS;
-#else
- m_printMode = wxPRINT_POSTSCRIPT;
-#endif
- m_exitOnFrameDelete = TRUE;
- m_auto3D = TRUE;
+ if (GetTopWindow())
+ GetTopWindow()->Close(true);
}
-wxApp::~wxApp()
+// Default behaviour: close the application with prompts. The
+// user can veto the close, and therefore the end session.
+void wxApp::OnQueryEndSession(wxCloseEvent& event)
{
- // Delete command-line args
- int i;
- for (i = 0; i < argc; i++)
+ if (GetTopWindow())
{
- delete[] argv[i];
+ if (!GetTopWindow()->Close(!event.CanVeto()))
+ event.Veto(true);
}
- 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
-}
+// ----------------------------------------------------------------------------
+// miscellaneous
+// ----------------------------------------------------------------------------
-/*
- * 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()
+/* static */
+int wxApp::GetComCtl32Version()
{
- BOOL rc = ::GetMessage(&s_currentMsg, (HWND) NULL, 0, 0);
- if ( rc == 0 )
- {
- // got WM_QUIT
- m_keepGoing = FALSE;
+#if defined(__WXMICROWIN__) || defined(__WXWINCE__)
+ return 0;
+#else
+ // 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;
- return FALSE;
- }
- else if ( rc == -1 )
+ if ( s_verComCtl32 == -1 )
{
- // should never happen, but let's test for it nevertheless
- wxLogLastError("GetMessage");
- }
- else
- {
-#if wxUSE_THREADS
- wxASSERT_MSG( wxThread::IsMain(),
- "only the main thread can process Windows messages" );
+ // initally assume no comctl32.dll at all
+ s_verComCtl32 = 0;
- static bool s_hadGuiLock = TRUE;
- static wxMsgArray s_aSavedMessages;
+ // we're prepared to handle the errors
+ wxLogNull noLog;
- // 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;
+#if wxUSE_DYNLIB_CLASS
+ // do we have it?
+ wxDynamicLibrary dllComCtl32(_T("comctl32.dll"), wxDL_VERBATIM);
- // 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
+ // if so, then we can check for the version
+ if ( dllComCtl32.IsLoaded() )
{
- // 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 )
+ // now check if the function is available during run-time
+ wxDYNLIB_FUNCTION( DLLGETVERSIONPROC, DllGetVersion, dllComCtl32 );
+ if ( pfnDllGetVersion )
{
- s_hadGuiLock = TRUE;
+ DLLVERSIONINFO dvi;
+ dvi.cbSize = sizeof(dvi);
- size_t count = s_aSavedMessages.Count();
- for ( size_t n = 0; n < count; n++ )
+ HRESULT hr = (*pfnDllGetVersion)(&dvi);
+ if ( FAILED(hr) )
{
- MSG& msg = s_aSavedMessages[n];
+ wxLogApiError(_T("DllGetVersion"), hr);
+ }
+ else
+ {
+ // this is incompatible with _WIN32_IE values, but
+ // compatible with the other values returned by
+ // GetComCtl32Version()
+ s_verComCtl32 = 100*dvi.dwMajorVersion +
+ dvi.dwMinorVersion;
+ }
+ }
- if ( !ProcessMessage((WXMSG *)&msg) )
+ // 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 )
{
- ::TranslateMessage(&msg);
- ::DispatchMessage(&msg);
+ // not found, must be 4.70
+ s_verComCtl32 = 470;
+ }
+ else
+ {
+ // found, must be 4.71 or later
+ s_verComCtl32 = 471;
}
}
-
- s_aSavedMessages.Empty();
}
}
-#endif // wxUSE_THREADS
-
- // Process the message
- if ( !ProcessMessage((WXMSG *)&s_currentMsg) )
- {
- ::TranslateMessage(&s_currentMsg);
- wxApp::sm_lastMessageTime = s_currentMsg.time; /* MATTHEW: timeStamp impl. */
- ::DispatchMessage(&s_currentMsg);
- }
+#endif
}
- return TRUE;
+ return s_verComCtl32;
+#endif // Microwin/!Microwin
}
-/*
- * 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()
+// Yield to incoming messages
+
+bool wxApp::Yield(bool onlyIfNeeded)
{
- m_keepGoing = TRUE;
+ // MT-FIXME
+ static bool s_inYield = false;
- while ( m_keepGoing )
- {
-#if wxUSE_THREADS
- wxMutexGuiLeaveOrEnter();
-#endif // wxUSE_THREADS
+#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
- while ( !::PeekMessage(&s_currentMsg, 0, 0, 0, PM_NOREMOVE) &&
- ProcessIdle() )
+ if ( s_inYield )
+ {
+ if ( !onlyIfNeeded )
{
+ wxFAIL_MSG( wxT("wxYield called recursively" ) );
}
- DoMessage();
+ return false;
}
- return s_currentMsg.wParam;
-}
-
-// Returns TRUE if more time is needed.
-bool wxApp::ProcessIdle()
-{
- wxIdleEvent event;
- event.SetEventObject(this);
- ProcessEvent(event);
+ s_inYield = true;
- return event.MoreRequested();
-}
-
-void wxApp::ExitMainLoop()
-{
- m_keepGoing = FALSE;
-}
-
-bool wxApp::Pending()
-{
- return (::PeekMessage(&s_currentMsg, 0, 0, 0, PM_NOREMOVE) != 0) ;
-}
-
-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)
-{
- MSG *msg = (MSG *)wxmsg;
- HWND hWnd = msg->hwnd;
- wxWindow *wndThis = wxFindWinFromHandle((WXHWND)hWnd), *wnd;
-
- // Try translations first; find the youngest window with
- // a translation table.
- for ( wnd = wndThis; wnd; wnd = wnd->GetParent() )
- {
- if ( wnd->MSWTranslateMessage(wxmsg) )
- return TRUE;
- }
-
- // Anyone for a non-translation message? Try youngest descendants first.
- for ( wnd = wndThis; wnd; wnd = wnd->GetParent() )
+ // we don't want to process WM_QUIT from here - it should be processed in
+ // the main event loop in order to stop it
+ MSG msg;
+ while ( PeekMessage(&msg, (HWND)0, 0, 0, PM_NOREMOVE) &&
+ msg.message != WM_QUIT )
{
- if ( wnd->MSWProcessMessage(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();
-
- // flush the logged messages if any
- wxLog *pLog = wxLog::GetActiveTarget();
- if ( pLog != NULL && pLog->HasPendingMessages() )
- pLog->Flush();
+#if wxUSE_THREADS
+ wxMutexGuiLeaveOrEnter();
+#endif // wxUSE_THREADS
- // Send OnIdle events to all windows
- if ( SendIdleEvents() )
- {
- // SendIdleEvents() returns TRUE if at least one window requested more
- // idle events
- event.RequestMore(TRUE);
+ if ( !wxTheApp->Dispatch() )
+ break;
}
- s_inOnIdle = FALSE;
-}
+ // if there are pending events, we must process them.
+ ProcessPendingEvents();
-// Send idle event to all top-level windows
-bool wxApp::SendIdleEvents()
-{
- bool needMore = FALSE;
- wxNode* node = wxTopLevelWindows.First();
- while (node)
- {
- wxWindow* win = (wxWindow*) node->Data();
- if (SendIdleEvents(win))
- needMore = TRUE;
+#if wxUSE_LOG
+ // let the logs be flashed again
+ wxLog::Resume();
+#endif // wxUSE_LOG
- node = node->Next();
- }
+ s_inYield = false;
- return needMore;
+ return true;
}
-// 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;
+#if wxUSE_EXCEPTIONS
- wxNode* node = win->GetChildren().First();
- while (node)
- {
- wxWindow* win = (wxWindow*) node->Data();
- if (SendIdleEvents(win))
- needMore = TRUE;
+// ----------------------------------------------------------------------------
+// exception handling
+// ----------------------------------------------------------------------------
- node = node->Next();
- }
- return needMore ;
-}
-
-void wxApp::DeletePendingObjects()
+bool wxApp::OnExceptionInMainLoop()
{
- wxNode *node = wxPendingDelete.First();
- while (node)
+ // 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
+ )
+ )
{
- wxObject *obj = (wxObject *)node->Data();
-
- delete obj;
+ case IDABORT:
+ throw;
- if (wxPendingDelete.Member(obj))
- delete node;
+ default:
+ wxFAIL_MSG( _T("unexpected MessageBox() return code") );
+ // fall through
- // Deleting one object may have deleted other pending
- // objects, so start from beginning of list again.
- node = wxPendingDelete.First();
- }
-}
+ case IDRETRY:
+ return false;
-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);
+ case IDIGNORE:
+ return true;
}
}
-wxLog* wxApp::CreateLogTarget()
-{
- return new wxLogGui;
-}
-
-wxWindow* wxApp::GetTopWindow() const
-{
- if (m_topWindow)
- return m_topWindow;
- else if (wxTopLevelWindows.Number() > 0)
- return (wxWindow*) wxTopLevelWindows.First()->Data();
- else
- return NULL;
-}
-
-int wxApp::GetComCtl32Version() const
-{
- // have we loaded COMCTL32 yet?
- HMODULE theModule = ::GetModuleHandle("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");
+#endif // wxUSE_EXCEPTIONS
- 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;
-}
+// ----------------------------------------------------------------------------
+// deprecated event loop functions
+// ----------------------------------------------------------------------------
-void wxExit()
-{
- wxLogError(_("Fatal error: exiting"));
+#if WXWIN_COMPATIBILITY_2_4
- wxApp::CleanUp();
-}
-
-// Yield to incoming messages
-bool wxYield()
+void wxApp::DoMessage(WXMSG *pMsg)
{
- 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;
- }
-
- return TRUE;
+ wxEventLoop *evtLoop = wxEventLoop::GetActive();
+ if ( evtLoop )
+ evtLoop->ProcessMessage(pMsg);
}
-HINSTANCE wxGetInstance()
+bool wxApp::DoMessage()
{
- return wxhInstance;
+ wxEventLoop *evtLoop = wxEventLoop::GetActive();
+ return evtLoop ? evtLoop->Dispatch() : false;
}
-void wxSetInstance(HINSTANCE hInst)
+bool wxApp::ProcessMessage(WXMSG* pMsg)
{
- wxhInstance = hInst;
+ wxEventLoop *evtLoop = wxEventLoop::GetActive();
+ return evtLoop && evtLoop->PreProcessMessage(pMsg);
}
-// 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(__VISUALC__) && !defined(__WIN32__)) || (defined(__GNUWIN32__) && !defined(__TWIN32__))
-#include "main.cpp"
-#endif
+#endif // WXWIN_COMPATIBILITY_2_4
projects / wxWidgets.git / blobdiff