utils.h

浙江大学的悟空嵌入式系统模拟器

// Get the process id of the current process
WXDLLEXPORT unsigned long wxGetProcessId();

// Get free memory in bytes, or -1 if cannot determine amount (e.g. on UNIX)
WXDLLEXPORT long wxGetFreeMemory();

// should wxApp::OnFatalException() be called?
WXDLLEXPORT bool wxHandleFatalExceptions(bool doit = TRUE);

// ----------------------------------------------------------------------------
// Environment variables
// ----------------------------------------------------------------------------

// returns TRUE if variable exists (value may be NULL if you just want to check
// for this)
WXDLLEXPORT bool wxGetEnv(const wxString& var, wxString *value);

// set the env var name to the given value, return TRUE on success
WXDLLEXPORT bool wxSetEnv(const wxString& var, const wxChar *value);

// remove the env var from environment
inline bool wxUnsetEnv(const wxString& var) { return wxSetEnv(var, NULL); }

// ----------------------------------------------------------------------------
// Network and username functions.
// ----------------------------------------------------------------------------

// NB: "char *" functions are deprecated, use wxString ones!

// Get eMail address
WXDLLEXPORT bool wxGetEmailAddress(wxChar *buf, int maxSize);
WXDLLEXPORT wxString wxGetEmailAddress();

// Get hostname.
WXDLLEXPORT bool wxGetHostName(wxChar *buf, int maxSize);
WXDLLEXPORT wxString wxGetHostName();

// Get FQDN
WXDLLEXPORT wxString wxGetFullHostName();
WXDLLEXPORT bool wxGetFullHostName(wxChar *buf, int maxSize);

// Get user ID e.g. jacs (this is known as login name under Unix)
WXDLLEXPORT bool wxGetUserId(wxChar *buf, int maxSize);
WXDLLEXPORT wxString wxGetUserId();

// Get user name e.g. Julian Smart
WXDLLEXPORT bool wxGetUserName(wxChar *buf, int maxSize);
WXDLLEXPORT wxString wxGetUserName();

// Get current Home dir and copy to dest (returns pstr->c_str())
WXDLLEXPORT wxString wxGetHomeDir();
WXDLLEXPORT const wxChar* wxGetHomeDir(wxString *pstr);

// Get the user's home dir (caller must copy --- volatile)
// returns NULL is no HOME dir is known
#if defined(__UNIX__) && wxUSE_UNICODE
WXDLLEXPORT const wxMB2WXbuf wxGetUserHome(const wxString& user = wxEmptyString);
#else
WXDLLEXPORT wxChar* wxGetUserHome(const wxString& user = wxEmptyString);
#endif

// get number of total/free bytes on the disk where path belongs
WXDLLEXPORT bool wxGetDiskSpace(const wxString& path,
                                wxLongLong *pTotal = NULL,
                                wxLongLong *pFree = NULL);

#if wxUSE_GUI // GUI only things from now on

// ----------------------------------------------------------------------------
// Menu accelerators related things
// ----------------------------------------------------------------------------

WXDLLEXPORT wxChar* wxStripMenuCodes(const wxChar *in, wxChar *out = (wxChar *) NULL);
WXDLLEXPORT wxString wxStripMenuCodes(const wxString& str);

#if wxUSE_ACCEL
class WXDLLEXPORT wxAcceleratorEntry;
WXDLLEXPORT wxAcceleratorEntry *wxGetAccelFromString(const wxString& label);
#endif // wxUSE_ACCEL

// ----------------------------------------------------------------------------
// Window search
// ----------------------------------------------------------------------------

// Returns menu item id or -1 if none.
WXDLLEXPORT int wxFindMenuItemId(wxFrame *frame, const wxString& menuString, const wxString& itemString);

// Find the wxWindow at the given point. wxGenericFindWindowAtPoint
// is always present but may be less reliable than a native version.
WXDLLEXPORT wxWindow* wxGenericFindWindowAtPoint(const wxPoint& pt);
WXDLLEXPORT wxWindow* wxFindWindowAtPoint(const wxPoint& pt);

// NB: this function is obsolete, use wxWindow::FindWindowByLabel() instead
//
// Find the window/widget with the given title or label.
// Pass a parent to begin the search from, or NULL to look through
// all windows.
WXDLLEXPORT wxWindow* wxFindWindowByLabel(const wxString& title, wxWindow *parent = (wxWindow *) NULL);

// NB: this function is obsolete, use wxWindow::FindWindowByName() instead
//
// Find window by name, and if that fails, by label.
WXDLLEXPORT wxWindow* wxFindWindowByName(const wxString& name, wxWindow *parent = (wxWindow *) NULL);

// ----------------------------------------------------------------------------
// Message/event queue helpers
// ----------------------------------------------------------------------------

// NB: these functions are obsolete, please use wxApp methods instead!

// Yield to other apps/messages
WXDLLEXPORT bool wxYield();

// Like wxYield, but fails silently if the yield is recursive.
WXDLLEXPORT bool wxYieldIfNeeded();

// Yield to other apps/messages and disable user input
WXDLLEXPORT bool wxSafeYield(wxWindow *win = NULL, bool onlyIfNeeded = FALSE);

// Enable or disable input to all top level windows
WXDLLEXPORT void wxEnableTopLevelWindows(bool enable = TRUE);

// Check whether this window wants to process messages, e.g. Stop button
// in long calculations.
WXDLLEXPORT bool wxCheckForInterrupt(wxWindow *wnd);

// Consume all events until no more left
WXDLLEXPORT void wxFlushEvents();

// a class which disables all windows (except, may be, thegiven one) in its
// ctor and enables them back in its dtor
class WXDLLEXPORT wxWindowDisabler
{
public:
    wxWindowDisabler(wxWindow *winToSkip = (wxWindow *)NULL);
    ~wxWindowDisabler();

private:
    wxWindowList *m_winDisabled;

    DECLARE_NO_COPY_CLASS(wxWindowDisabler)
};

// ----------------------------------------------------------------------------
// Cursors
// ----------------------------------------------------------------------------

// Set the cursor to the busy cursor for all windows
class WXDLLEXPORT wxCursor;
WXDLLEXPORT_DATA(extern wxCursor*) wxHOURGLASS_CURSOR;
WXDLLEXPORT void wxBeginBusyCursor(wxCursor *cursor = wxHOURGLASS_CURSOR);

// Restore cursor to normal
WXDLLEXPORT void wxEndBusyCursor();

// TRUE if we're between the above two calls
WXDLLEXPORT bool wxIsBusy();

// Convenience class so we can just create a wxBusyCursor object on the stack
class WXDLLEXPORT wxBusyCursor
{
public:
    wxBusyCursor(wxCursor* cursor = wxHOURGLASS_CURSOR)
        { wxBeginBusyCursor(cursor); }
    ~wxBusyCursor()
        { wxEndBusyCursor(); }

    // FIXME: These two methods are currently only implemented (and needed?)
    //        in wxGTK.  BusyCursor handling should probably be moved to
    //        common code since the wxGTK and wxMSW implementations are very
    //        similar except for wxMSW using HCURSOR directly instead of
    //        wxCursor..  -- RL.
    static const wxCursor &GetStoredCursor();
    static const wxCursor GetBusyCursor();
};


// ----------------------------------------------------------------------------
// Reading and writing resources (eg WIN.INI, .Xdefaults)
// ----------------------------------------------------------------------------

#if wxUSE_RESOURCES
WXDLLEXPORT bool wxWriteResource(const wxString& section, const wxString& entry, const wxString& value, const wxString& file = wxEmptyString);
WXDLLEXPORT bool wxWriteResource(const wxString& section, const wxString& entry, float value, const wxString& file = wxEmptyString);
WXDLLEXPORT bool wxWriteResource(const wxString& section, const wxString& entry, long value, const wxString& file = wxEmptyString);
WXDLLEXPORT bool wxWriteResource(const wxString& section, const wxString& entry, int value, const wxString& file = wxEmptyString);

WXDLLEXPORT bool wxGetResource(const wxString& section, const wxString& entry, wxChar **value, const wxString& file = wxEmptyString);
WXDLLEXPORT bool wxGetResource(const wxString& section, const wxString& entry, float *value, const wxString& file = wxEmptyString);
WXDLLEXPORT bool wxGetResource(const wxString& section, const wxString& entry, long *value, const wxString& file = wxEmptyString);
WXDLLEXPORT bool wxGetResource(const wxString& section, const wxString& entry, int *value, const wxString& file = wxEmptyString);
#endif // wxUSE_RESOURCES

void WXDLLEXPORT wxGetMousePosition( int* x, int* y );

// MSW only: get user-defined resource from the .res file.
// Returns NULL or newly-allocated memory, so use delete[] to clean up.
#ifdef __WXMSW__
    WXDLLEXPORT extern const wxChar* wxUserResourceStr;
    WXDLLEXPORT wxChar* wxLoadUserResource(const wxString& resourceName, const wxString& resourceType = wxUserResourceStr);
#endif // MSW

// ----------------------------------------------------------------------------
// Display and colorss (X only)
// ----------------------------------------------------------------------------

#ifdef __WXGTK__
    void *wxGetDisplay();
#endif

#ifdef __X__
    WXDisplay *wxGetDisplay();
    bool wxSetDisplay(const wxString& display_name);
    wxString wxGetDisplayName();
#endif // X or GTK+

#ifdef __X__

#ifdef __VMS__ // Xlib.h for VMS is not (yet) compatible with C++
               // The resulting warnings are switched off here
#pragma message disable nosimpint
#endif
// #include <X11/Xlib.h>
#ifdef __VMS__
#pragma message enable nosimpint
#endif

#endif //__X__

#endif // wxUSE_GUI

// ----------------------------------------------------------------------------
// Error message functions used by wxWindows (deprecated, use wxLog)
// ----------------------------------------------------------------------------

#if WXWIN_COMPATIBILITY_2_2

// Format a message on the standard error (UNIX) or the debugging
// stream (Windows)
WXDLLEXPORT void wxDebugMsg(const wxChar *fmt ...) ATTRIBUTE_PRINTF_1;

// Non-fatal error (continues)
WXDLLEXPORT_DATA(extern const wxChar*) wxInternalErrorStr;
WXDLLEXPORT void wxError(const wxString& msg, const wxString& title = wxInternalErrorStr);

// Fatal error (exits)
WXDLLEXPORT_DATA(extern const wxChar*) wxFatalErrorStr;
WXDLLEXPORT void wxFatalError(const wxString& msg, const wxString& title = wxFatalErrorStr);

#endif // WXWIN_COMPATIBILITY_2_2

#endif
    // _WX_UTILSH__