/////////////////////////////////////////////////////////////////////////////
-// Name: app.cpp
+// Name: src/msw/app.cpp
// Purpose: wxApp
// Author: Julian Smart
// Modified by:
// headers
// ---------------------------------------------------------------------------
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
- #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/icon.h"
+ #include "wx/crt.h"
#include "wx/log.h"
+ #include "wx/module.h"
#endif
#include "wx/apptrait.h"
#include "wx/filename.h"
-#include "wx/module.h"
#include "wx/dynlib.h"
+#include "wx/evtloop.h"
+#include "wx/thread.h"
+#include "wx/scopeguard.h"
#include "wx/msw/private.h"
+#include "wx/msw/dc.h"
+#include "wx/msw/ole/oleutils.h"
+#include "wx/msw/private/timer.h"
#if wxUSE_TOOLTIPS
#include "wx/tooltip.h"
// 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__)
+#if defined(__GNUWIN32_OLD__) || defined(__SYMANTEC__)
#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>
-#include "wx/msw/wrapcctl.h"
-
-#if (!defined(__MINGW32__) || wxCHECK_W32API_VERSION( 2, 0 )) && \
- !defined(__CYGWIN__) && !defined(__DIGITALMARS__) && !defined(__WXWINCE__) && \
- (!defined(_MSC_VER) || (_MSC_VER > 1100))
- #include <shlwapi.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_*
+ };
+
+ typedef HRESULT (CALLBACK* DLLGETVERSIONPROC)(DLLVERSIONINFO *);
+#endif // defined(DLLVERSIONINFO)
+
+#ifndef ATTACH_PARENT_PROCESS
+ #define ATTACH_PARENT_PROCESS ((DWORD)-1)
#endif
// ---------------------------------------------------------------------------
// global variables
// ---------------------------------------------------------------------------
-extern wxList WXDLLEXPORT wxPendingDelete;
-
#if !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
extern void wxSetKeyboardHook(bool doIt);
#endif
// NB: all "NoRedraw" classes must have the same names as the "normal" classes
// with NR suffix - wxWindow::MSWCreate() supposes this
-const wxChar *wxCanvasClassName = wxT("wxWindowClass");
-const wxChar *wxCanvasClassNameNR = wxT("wxWindowClassNR");
-const wxChar *wxMDIFrameClassName = wxT("wxMDIFrameClass");
-const wxChar *wxMDIFrameClassNameNoRedraw = wxT("wxMDIFrameClassNR");
-const wxChar *wxMDIChildFrameClassName = wxT("wxMDIChildFrameClass");
-const wxChar *wxMDIChildFrameClassNameNoRedraw = wxT("wxMDIChildFrameClassNR");
-
-HBRUSH wxDisableButtonBrush = (HBRUSH) 0;
+#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;
// ----------------------------------------------------------------------------
// private functions
{
wxEndBusyCursor();
- const ChildWaitLoopData * const data = (ChildWaitLoopData *)dataOrig;
+ ChildWaitLoopData * const data = (ChildWaitLoopData *)dataOrig;
delete data->wd;
// the other windows reenabled, the activation is going to return to the
// window which had had it before
data->winActive->Destroy();
+
+ // also delete the temporary data object itself
+ delete data;
}
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
- return !wxTheApp || wxTheApp->Dispatch();
+ wxEventLoopBase * const evtLoop = wxEventLoop::GetActive();
+ if ( !evtLoop || !evtLoop->Pending() )
+ {
+ // no events means no quit event
+ return true;
+ }
+
+ return evtLoop->Dispatch();
}
-wxToolkitInfo& wxGUIAppTraits::GetToolkitInfo()
+DWORD wxGUIAppTraits::WaitForThread(WXHANDLE hThread)
{
- static wxToolkitInfo info;
- wxToolkitInfo& baseInfo = wxAppTraits::GetToolkitInfo();
- info.versionMajor = baseInfo.versionMajor;
- info.versionMinor = baseInfo.versionMinor;
- info.os = baseInfo.os;
- info.shortName = _T("msw");
- info.name = _T("wxMSW");
-#ifdef __WXUNIVERSAL__
- info.shortName << _T("univ");
- info.name << _T("/wxUniversal");
+ // 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
+ );
+}
+
+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
- return info;
}
+#if wxUSE_TIMER
+
+wxTimerImpl *wxGUIAppTraits::CreateTimerImpl(wxTimer *timer)
+{
+ return new wxMSWTimerImpl(timer);
+}
+
+#endif // wxUSE_TIMER
+
+wxEventLoopBase* wxGUIAppTraits::CreateEventLoop()
+{
+ return new wxEventLoop;
+}
+
+// ---------------------------------------------------------------------------
+// Stuff for using console from the GUI applications
+// ---------------------------------------------------------------------------
+
+#ifndef __WXWINCE__
+
+#include <wx/dynlib.h>
+
+namespace
+{
+
+/*
+ Helper class to manipulate console from a GUI app.
+
+ 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
+
+ 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;
+
+ m_ok = -1;
+ }
+
+ ~wxConsoleStderr()
+ {
+ if ( m_hStderr != INVALID_HANDLE_VALUE )
+ {
+ if ( !::FreeConsole() )
+ {
+ wxLogLastError(_T("FreeConsole"));
+ }
+ }
+ }
+
+ // 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();
+
+ // no need to call IsHistoryUnchanged() as we just initialized
+ // m_history anyhow
+ return m_ok == 1;
+ }
+
+ return m_ok && IsHistoryUnchanged();
+ }
+
+
+ // output the provided text on the console, return true if ok
+ bool Write(const wxString& text);
+
+private:
+ // called by Init() once only to do the real initialization
+ bool DoInit();
+
+ // retrieve the command line history into the provided buffer and return
+ // its length
+ int GetCommandHistory(wxWxCharBuffer& buf) const;
+
+ // check if the console history has changed
+ bool IsHistoryUnchanged() const;
+
+ int m_ok; // initially -1, set to true or false by Init()
+
+ wxDynamicLibrary m_dllKernel32;
+
+ HANDLE m_hStderr; // console handle, if it's valid we must call
+ // FreeConsole() (even if m_ok != 1)
+
+ 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
+
+ typedef DWORD (WINAPI *GetConsoleCommandHistory_t)(LPTSTR sCommands,
+ DWORD nBufferLength,
+ LPCTSTR sExeName);
+ typedef DWORD (WINAPI *GetConsoleCommandHistoryLength_t)(LPCTSTR sExeName);
+
+ GetConsoleCommandHistory_t m_pfnGetConsoleCommandHistory;
+ GetConsoleCommandHistoryLength_t m_pfnGetConsoleCommandHistoryLength;
+
+ DECLARE_NO_COPY_CLASS(wxConsoleStderr)
+};
+
+bool wxConsoleStderr::DoInit()
+{
+ HANDLE hStderr = ::GetStdHandle(STD_ERROR_HANDLE);
+
+ if ( hStderr == INVALID_HANDLE_VALUE || !hStderr )
+ return false;
+
+ if ( !m_dllKernel32.Load(_T("kernel32.dll")) )
+ return false;
+
+ typedef BOOL (WINAPI *AttachConsole_t)(DWORD dwProcessId);
+ AttachConsole_t wxDL_INIT_FUNC(pfn, AttachConsole, m_dllKernel32);
+
+ if ( !pfnAttachConsole || !pfnAttachConsole(ATTACH_PARENT_PROCESS) )
+ return false;
+
+ // console attached, set m_hStderr now to ensure that we free it in the
+ // dtor
+ m_hStderr = hStderr;
+
+ 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;
+
+
+ // 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;
+}
+
+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);
+
+#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
+{
+ wxASSERT_MSG( m_ok == 1, _T("shouldn't be called if not initialized") );
+
+ // get (possibly changed) command history
+ wxWxCharBuffer history;
+ const int historyLen = GetCommandHistory(history);
+
+ // and compare it with the original one
+ return historyLen == m_historyLen && history &&
+ memcmp(m_history, history, historyLen) == 0;
+}
+
+bool wxConsoleStderr::Write(const wxString& text)
+{
+ wxASSERT_MSG( m_hStderr != INVALID_HANDLE_VALUE,
+ _T("should only be called if Init() returned true") );
+
+ // get current position
+ CONSOLE_SCREEN_BUFFER_INFO csbi;
+ if ( !::GetConsoleScreenBufferInfo(m_hStderr, &csbi) )
+ {
+ wxLogLastError(_T("GetConsoleScreenBufferInfo"));
+ return false;
+ }
+
+ // and calculate new position (where is empty line)
+ csbi.dwCursorPosition.X = 0;
+ csbi.dwCursorPosition.Y -= m_dataLine;
+
+ if ( !::SetConsoleCursorPosition(m_hStderr, csbi.dwCursorPosition) )
+ {
+ wxLogLastError(_T("SetConsoleCursorPosition"));
+ return false;
+ }
+
+ DWORD ret;
+ if ( !::FillConsoleOutputCharacter(m_hStderr, _T(' '), m_dataLen,
+ csbi.dwCursorPosition, &ret) )
+ {
+ wxLogLastError(_T("FillConsoleOutputCharacter"));
+ return false;
+ }
+
+ if ( !::WriteConsole(m_hStderr, text.wx_str(), text.length(), &ret, NULL) )
+ {
+ wxLogLastError(_T("WriteConsole"));
+ return false;
+ }
+
+ WriteConsoleA(m_hStderr, m_data, m_dataLen, &ret, 0);
+
+ return true;
+}
+
+wxConsoleStderr s_consoleStderr;
+
+} // anonymous namespace
+
+bool wxGUIAppTraits::CanUseStderr()
+{
+ return s_consoleStderr.IsOkToUse();
+}
+
+bool wxGUIAppTraits::WriteToStderr(const wxString& text)
+{
+ return s_consoleStderr.IsOkToUse() && s_consoleStderr.Write(text);
+}
+
+#endif // !__WXWINCE__
+
// ===========================================================================
// wxApp implementation
// ===========================================================================
// ensure that base cleanup is done if we return too early
wxCallBaseCleanup callBaseCleanup(this);
- // the first thing to do is to check if we're trying to run an Unicode
- // program under Win9x w/o MSLU emulation layer - if so, abort right now
- // as it has no chance to work
-#if wxUSE_UNICODE && !wxUSE_UNICODE_MSLU
- if ( wxGetOsVersion() != wxWINDOWS_NT && wxGetOsVersion() != wxWINDOWS_CE )
+#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)
{
- // note that we can use MessageBoxW() as it's implemented even under
- // Win9x - OTOH, we can't use wxGetTranslation() because the file APIs
- // used by wxLocale are not
- ::MessageBox
- (
- NULL,
- _T("This program uses Unicode and requires Windows NT/2000/XP/CE.\nProgram aborted."),
- _T("wxWindows Fatal Error"),
- MB_ICONERROR | MB_OK
- );
-
- return FALSE;
+ SetForegroundWindow( (HWND)(((DWORD)hWnd)|0x01) );
+ return false;
}
-#endif // wxUSE_UNICODE && !wxUSE_UNICODE_MSLU
+#endif
-#if defined(__WIN95__) && !defined(__WXMICROWIN__)
+#if !defined(__WXMICROWIN__)
InitCommonControls();
-#endif // __WIN95__
+#endif // !defined(__WXMICROWIN__)
-#if wxUSE_OLE || wxUSE_DRAG_AND_DROP
-
-#if wxUSE_OLE
- // we need to initialize OLE library
-#ifdef __WXWINCE__
- if ( FAILED(::CoInitializeEx(NULL, COINIT_MULTITHREADED)) )
- wxLogError(_("Cannot initialize OLE"));
-#else
- if ( FAILED(::OleInitialize(NULL)) )
- wxLogError(_("Cannot initialize OLE"));
-#endif
+#if defined(__SMARTPHONE__) || defined(__POCKETPC__)
+ SHInitExtraControls();
#endif
-#endif // wxUSE_OLE
-
-#if wxUSE_CTL3D
- if (!Ctl3dRegister(wxhInstance))
- wxLogError(wxT("Cannot register CTL3D"));
-
- Ctl3dAutoSubclass(wxhInstance);
-#endif // wxUSE_CTL3D
-
- RegisterWindowClasses();
-
-#if defined(__WXMICROWIN__) && !defined(__WXWINCE__)
- // Create the brush for disabling bitmap buttons
-
- LOGBRUSH lb;
- lb.lbStyle = BS_PATTERN;
- lb.lbColor = 0;
- lb.lbHatch = (int)LoadBitmap( wxhInstance, wxT("wxDISABLE_BUTTON_BITMAP") );
- if ( lb.lbHatch )
- {
- wxDisableButtonBrush = ::CreateBrushIndirect( & lb );
- ::DeleteObject( (HGDIOBJ)lb.lbHatch );
- }
- //else: wxWindows resources are probably not linked in
+#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
-#if wxUSE_PENWINDOWS
- wxRegisterPenWin();
-#endif
+ wxOleInitialize();
- wxWinHandleHash = new wxWinHashTable(wxKEY_INTEGER, 100);
+ RegisterWindowClasses();
#if !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
- wxSetKeyboardHook(TRUE);
+ wxSetKeyboardHook(true);
#endif
callBaseCleanup.Dismiss();
// 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)
+{
+ 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));
+ }
+}
+
+// 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)
+{
+ // 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);
+}
+
// 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.
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;
-
// the fields which are common to all classes
wndclass.lpfnWndProc = (WNDPROC)wxWndProc;
wndclass.hInstance = wxhInstance;
wndclass.hCursor = ::LoadCursor((HINSTANCE)NULL, IDC_ARROW);
- // Register the frame window class.
- wndclass.hbrBackground = (HBRUSH)(COLOR_APPWORKSPACE + 1);
- wndclass.lpszClassName = wxCanvasClassName;
- wndclass.style = styleNormal;
-
- if ( !RegisterClass(&wndclass) )
- {
- wxLogLastError(wxT("RegisterClass(frame)"));
- }
-
- // "no redraw" frame
- wndclass.lpszClassName = wxCanvasClassNameNR;
- wndclass.style = styleNoRedraw;
-
- if ( !RegisterClass(&wndclass) )
- {
- wxLogLastError(wxT("RegisterClass(no redraw frame)"));
- }
+ // 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.
+ // Register the MDI frame window class and "no redraw" MDI frame
wndclass.hbrBackground = (HBRUSH)NULL; // paint MDI frame ourselves
- wndclass.lpszClassName = wxMDIFrameClassName;
- wndclass.style = styleNormal;
-
- if ( !RegisterClass(&wndclass) )
- {
- wxLogLastError(wxT("RegisterClass(MDI parent)"));
- }
-
- // "no redraw" MDI frame
- wndclass.lpszClassName = wxMDIFrameClassNameNoRedraw;
- wndclass.style = styleNoRedraw;
-
- if ( !RegisterClass(&wndclass) )
- {
- wxLogLastError(wxT("RegisterClass(no redraw MDI parent frame)"));
- }
+ RegisterClassWithUniqueNames(wxT("wxMDIFrameClass"),
+ &wxMDIFrameClassName,
+ &wxMDIFrameClassNameNoRedraw,
+ &wndclass);
- // Register the MDI child frame window class.
+ // Register the MDI child frame window class and "no redraw" MDI child frame
wndclass.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
- wndclass.lpszClassName = wxMDIChildFrameClassName;
- wndclass.style = styleNormal;
+ RegisterClassWithUniqueNames(wxT("wxMDIChildFrameClass"),
+ &wxMDIChildFrameClassName,
+ &wxMDIChildFrameClassNameNoRedraw,
+ &wndclass);
- if ( !RegisterClass(&wndclass) )
- {
- wxLogLastError(wxT("RegisterClass(MDI child)"));
- }
-
- // "no redraw" MDI child frame
- wndclass.lpszClassName = wxMDIChildFrameClassNameNoRedraw;
- wndclass.style = styleNoRedraw;
-
- if ( !RegisterClass(&wndclass) )
- {
- wxLogLastError(wxT("RegisterClass(no redraw MDI child)"));
- }
-
- return TRUE;
+ return true;
}
// ---------------------------------------------------------------------------
// UnregisterWindowClasses
// ---------------------------------------------------------------------------
-bool wxApp::UnregisterWindowClasses()
+// 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;
+ bool retval = true;
-#ifndef __WXMICROWIN__
- // MDI frame window class.
- if ( !::UnregisterClass(wxMDIFrameClassName, wxhInstance) )
+ if ( !::UnregisterClass(*ppClassName, wxhInstance) )
{
- wxLogLastError(wxT("UnregisterClass(MDI parent)"));
+ wxLogLastError(
+ wxString::Format(wxT("UnregisterClass(%s)"), *ppClassName));
- retval = FALSE;
+ retval = false;
}
- // "no redraw" MDI frame
- if ( !::UnregisterClass(wxMDIFrameClassNameNoRedraw, wxhInstance) )
- {
- wxLogLastError(wxT("UnregisterClass(no redraw MDI parent frame)"));
+ delete [] (wxChar*) *ppClassName;
+ *ppClassName = NULL;
- retval = FALSE;
- }
+ return retval;
+}
- // MDI child frame window class.
- if ( !::UnregisterClass(wxMDIChildFrameClassName, wxhInstance) )
- {
- wxLogLastError(wxT("UnregisterClass(MDI child)"));
+bool wxApp::UnregisterWindowClasses()
+{
+ bool retval = true;
- retval = FALSE;
- }
+#ifndef __WXMICROWIN__
+ if ( !UnregisterAndFreeClassName(&wxMDIFrameClassName) )
+ retval = false;
- // "no redraw" MDI child frame
- if ( !::UnregisterClass(wxMDIChildFrameClassNameNoRedraw, wxhInstance) )
- {
- wxLogLastError(wxT("UnregisterClass(no redraw MDI child)"));
+ if ( !UnregisterAndFreeClassName(&wxMDIFrameClassNameNoRedraw) )
+ retval = false;
- retval = FALSE;
- }
+ if ( !UnregisterAndFreeClassName(&wxMDIChildFrameClassName) )
+ retval = false;
- // canvas class name
- if ( !::UnregisterClass(wxCanvasClassName, wxhInstance) )
- {
- wxLogLastError(wxT("UnregisterClass(canvas)"));
+ if ( !UnregisterAndFreeClassName(&wxMDIChildFrameClassNameNoRedraw) )
+ retval = false;
- retval = FALSE;
- }
+ if ( !UnregisterAndFreeClassName(&wxCanvasClassName) )
+ retval = false;
- if ( !::UnregisterClass(wxCanvasClassNameNR, wxhInstance) )
- {
- wxLogLastError(wxT("UnregisterClass(no redraw canvas)"));
-
- retval = FALSE;
- }
+ if ( !UnregisterAndFreeClassName(&wxCanvasClassNameNR) )
+ retval = false;
#endif // __WXMICROWIN__
return retval;
void wxApp::CleanUp()
{
- // 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
+ // 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
-
-#if wxUSE_PENWINDOWS
- wxCleanUpPenWin();
+ wxSetKeyboardHook(false);
#endif
- if ( wxDisableButtonBrush )
- ::DeleteObject( wxDisableButtonBrush );
-
-#if wxUSE_OLE
-#ifdef __WXWINCE__
- ::CoUninitialize();
-#else
- ::OleUninitialize();
-#endif
-#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
// unregister the classes now
UnregisterWindowClasses();
-#if wxUSE_CTL3D
- Ctl3dUnregister(wxhInstance);
+#ifdef __WXWINCE__
+ free( wxCanvasClassName );
+ free( wxCanvasClassNameNR );
#endif
-
- delete wxWinHandleHash;
- wxWinHandleHash = NULL;
}
// ----------------------------------------------------------------------------
wxApp::~wxApp()
{
- // our cmd line arguments are allocated inside wxEntry(HINSTANCE), they
- // don't come from main(), so we have to free them
-
- while ( argc )
- {
- // m_argv elements were allocated by wxStrdup()
- free(argv[--argc]);
- }
-
- // but m_argv itself -- using new[]
- delete [] argv;
}
-void wxApp::OnIdle(wxIdleEvent& event)
-{
- wxAppBase::OnIdle(event);
+// ----------------------------------------------------------------------------
+// wxApp idle handling
+// ----------------------------------------------------------------------------
+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))
- wxDC::ClearCache();
+ wxMSWDCImpl::ClearCache();
#endif // wxUSE_DC_CACHEING
}
// 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();
+ wxWindow * const topWindow = wxTheApp->GetTopWindow();
if ( topWindow )
{
- if ( !::PostMessage(GetHwndOf(topWindow), WM_NULL, 0, 0) )
+ 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) )
{
- // should never happen
- wxLogLastError(wxT("PostMessage(WM_NULL)"));
+ if ( !::PostMessage(hwndTop, WM_NULL, 0, 0) )
+ {
+ // should never happen
+ wxLogLastError(wxT("PostMessage(WM_NULL)"));
+ }
}
}
}
+// ----------------------------------------------------------------------------
+// other wxApp event hanlders
+// ----------------------------------------------------------------------------
+
void wxApp::OnEndSession(wxCloseEvent& WXUNUSED(event))
{
- if (GetTopWindow())
- GetTopWindow()->Close(TRUE);
+ // 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
+
+ // 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);
+
+ 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);
}
// Default behaviour: close the application with prompts. The
if (GetTopWindow())
{
if (!GetTopWindow()->Close(!event.CanVeto()))
- event.Veto(TRUE);
+ event.Veto(true);
+ }
+}
+
+// ----------------------------------------------------------------------------
+// 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) )
+ {
+ wxLogApiError(_T("DllGetVersion"), hr);
+
+ return 0;
}
+
+ return 100*dvi.dwMajorVersion + dvi.dwMinorVersion;
}
+} // anonymous namespace
+
/* static */
int wxApp::GetComCtl32Version()
{
-//FIX ME FOR DIGITALMARS!!
-#if defined(__WXMICROWIN__) || defined(__WXWINCE__) || defined(__DIGITALMARS__)
- return 0;
-#else
// cache the result
//
// NB: this is MT-ok as in the worst case we'd compute s_verComCtl32 twice,
if ( s_verComCtl32 == -1 )
{
- // initally assume no comctl32.dll at all
- s_verComCtl32 = 0;
-
// we're prepared to handle the errors
wxLogNull noLog;
- // do we have it?
+ // 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 so, then we can check for the version
- if ( dllComCtl32.IsLoaded() )
+ // if DllGetVersion() is unavailable either during compile or
+ // run-time, try to guess the version otherwise
+ if ( !s_verComCtl32 )
{
-#ifdef DLLVER_PLATFORM_WINDOWS
- // try to use DllGetVersion() if available in _headers_
- wxDYNLIB_FUNCTION( DLLGETVERSIONPROC, DllGetVersion, dllComCtl32 );
- if ( pfnDllGetVersion )
+ // InitCommonControlsEx is unique to 4.70 and later
+ void *pfn = dllComCtl32.GetSymbol(_T("InitCommonControlsEx"));
+ if ( !pfn )
{
- DLLVERSIONINFO dvi;
- dvi.cbSize = sizeof(dvi);
-
- HRESULT hr = (*pfnDllGetVersion)(&dvi);
- if ( FAILED(hr) )
- {
- 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;
- }
+ // not found, must be 4.00
+ s_verComCtl32 = 400;
}
-#endif
-
- // if DllGetVersion() is unavailable either during compile or
- // run-time, try to guess the version otherwise
- if ( !s_verComCtl32 )
+ else // 4.70+
{
- // InitCommonControlsEx is unique to 4.70 and later
- void *pfn = dllComCtl32.GetSymbol(_T("InitCommonControlsEx"));
+ // 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 4.00
- s_verComCtl32 = 400;
+ // not found, must be 4.70
+ s_verComCtl32 = 470;
}
- else // 4.70+
+ else
{
- // 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;
- }
+ // found, must be 4.71 or later
+ s_verComCtl32 = 471;
}
}
}
}
return s_verComCtl32;
-#endif // Microwin/!Microwin
}
+/* static */
+int wxApp::GetShell32Version()
+{
+ 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;
+}
+
+#else // !wxUSE_DYNLIB_CLASS
+
+/* static */
+int wxApp::GetComCtl32Version()
+{
+ return 0;
+}
+
+/* static */
+int wxApp::GetShell32Version()
+{
+ return 0;
+}
+
+#endif // wxUSE_DYNLIB_CLASS/!wxUSE_DYNLIB_CLASS
+
+#endif // !__WXWINCE__
+
+// ----------------------------------------------------------------------------
// Yield to incoming messages
+// ----------------------------------------------------------------------------
bool wxApp::Yield(bool onlyIfNeeded)
{
// 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
+ static bool s_inYield = false;
if ( s_inYield )
{
wxFAIL_MSG( wxT("wxYield called recursively" ) );
}
- return FALSE;
+ return false;
}
- s_inYield = TRUE;
+ // set the flag and don't forget to reset it before returning
+ s_inYield = true;
+ wxON_BLOCK_EXIT_SET(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();
+
+ // ensure the logs will be flashed again when we exit
+ wxON_BLOCK_EXIT0(wxLog::Resume);
+#endif // wxUSE_LOG
+
// 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 there are pending events, we must process them.
ProcessPendingEvents();
-#if wxUSE_LOG
- // let the logs be flashed again
- wxLog::Resume();
-#endif // wxUSE_LOG
+ return true;
+}
+
+#if wxUSE_EXCEPTIONS
- s_inYield = FALSE;
+// ----------------------------------------------------------------------------
+// exception handling
+// ----------------------------------------------------------------------------
- return TRUE;
+bool wxApp::OnExceptionInMainLoop()
+{
+ // 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;
+
+ default:
+ wxFAIL_MSG( _T("unexpected MessageBox() return code") );
+ // fall through
+
+ case IDRETRY:
+ return false;
+
+ case IDIGNORE:
+ return true;
+ }
}
+#endif // wxUSE_EXCEPTIONS
projects / wxWidgets.git / blobdiff