wxPython/src/_log.i

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        _log.i
   3 // Purpose:     SWIG interface stuff for wxLog
   4 //
   5 // Author:      Robin Dunn
   6 //
   7 // Created:     18-June-1999
   8 // RCS-ID:      $Id$
   9 // Copyright:   (c) 2003 by Total Control Software
  10 // Licence:     wxWindows license
  11 /////////////////////////////////////////////////////////////////////////////
  12
  13 // Not a %module
  14
  15
  16 //---------------------------------------------------------------------------
  17 %newgroup
  18
  19
  20 typedef unsigned long wxTraceMask;
  21 typedef unsigned long wxLogLevel;
  22
  23
  24 enum
  25 {
  26     wxLOG_FatalError, // program can't continue, abort immediately
  27     wxLOG_Error,      // a serious error, user must be informed about it
  28     wxLOG_Warning,    // user is normally informed about it but may be ignored
  29     wxLOG_Message,    // normal message (i.e. normal output of a non GUI app)
  30     wxLOG_Status,     // informational: might go to the status line of GUI app
  31     wxLOG_Info,       // informational message (a.k.a. 'Verbose')
  32     wxLOG_Debug,      // never shown to the user, disabled in release mode
  33     wxLOG_Trace,      // trace messages are also only enabled in debug mode
  34     wxLOG_Progress,   // used for progress indicator (not yet)
  35     wxLOG_User = 100, // user defined levels start here
  36     wxLOG_Max = 10000
  37 };
  38
  39 #define wxTRACE_MemAlloc "memalloc" // trace memory allocation (new/delete)
  40 #define wxTRACE_Messages "messages" // trace window messages/X callbacks
  41 #define wxTRACE_ResAlloc "resalloc" // trace GDI resource allocation
  42 #define wxTRACE_RefCount "refcount" // trace various ref counting operations
  43 #define wxTRACE_OleCalls "ole"      // OLE interface calls
  44
  45 #define wxTraceMemAlloc 0x0001  // trace memory allocation (new/delete)
  46 #define wxTraceMessages 0x0002  // trace window messages/X callbacks
  47 #define wxTraceResAlloc 0x0004  // trace GDI resource allocation
  48 #define wxTraceRefCount 0x0008  // trace various ref counting operations
  49 #define wxTraceOleCalls 0x0100  // OLE interface calls
  50
  51 //---------------------------------------------------------------------------
  52
  53 class wxLog
  54 {
  55 public:
  56     wxLog();
  57     ~wxLog();
  58
  59     // these functions allow to completely disable all log messages
  60     // is logging disabled now?
  61     static bool IsEnabled();
  62
  63     // change the flag state, return the previous one
  64     static bool EnableLogging(bool doIt = true);
  65
  66     // static sink function
  67     static void OnLog(wxLogLevel level, const wxChar *szString, time_t t);
  68
  69     // message buffering
  70     // flush shows all messages if they're not logged immediately (FILE
  71     // and iostream logs don't need it, but wxGuiLog does to avoid showing
  72     // 17 modal dialogs one after another)
  73     virtual void Flush();
  74
  75     // flush the active target if any
  76     static void FlushActive();
  77
  78     // only one sink is active at each moment
  79     // get current log target, will call wxApp::CreateLogTarget() to
  80     // create one if none exists
  81     static wxLog *GetActiveTarget();
  82
  83     %disownarg( wxLog* pLogger );
  84     %newobject SetActiveTarget;
  85     // change log target, pLogger may be NULL
  86     static wxLog *SetActiveTarget(wxLog *pLogger);
  87     %cleardisown( wxLog* pLogger );
  88
  89     // suspend the message flushing of the main target until the next call
  90     // to Resume() - this is mainly for internal use (to prevent wxYield()
  91     // from flashing the messages)
  92     static void Suspend();
  93
  94     // must be called for each Suspend()!
  95     static void Resume();
  96
  97
  98     // verbose mode is activated by standard command-line '-verbose'
  99     // option
 100     static void SetVerbose(bool bVerbose = true);
 101
 102     // Set log level.  Log messages with level > logLevel will not be logged.
 103     static void SetLogLevel(wxLogLevel logLevel);
 104
 105     // should GetActiveTarget() try to create a new log object if the
 106     // current is NULL?
 107     static void DontCreateOnDemand();
 108
 109     // log the count of repeating messages instead of logging the messages
 110     // multiple times
 111     static void SetRepetitionCounting(bool bRepetCounting = true);
 112
 113     // gets duplicate counting status
 114     static bool GetRepetitionCounting();
 115
 116     // trace mask (see wxTraceXXX constants for details)
 117     static void SetTraceMask(wxTraceMask ulMask);
 118
 119     // add string trace mask
 120     static void AddTraceMask(const wxString& str);
 121
 122     // remove string trace mask
 123     static void RemoveTraceMask(const wxString& str);
 124
 125     // remove all string trace masks
 126     static void ClearTraceMasks();
 127
 128     // get string trace masks
 129     static const wxArrayString &GetTraceMasks();
 130
 131     // sets the timestamp string: this is used as strftime() format string
 132     // for the log targets which add time stamps to the messages - set it
 133     // to NULL to disable time stamping completely.
 134     static void SetTimestamp(const wxChar *ts);
 135
 136
 137     // gets the verbose status
 138     static bool GetVerbose();
 139
 140     // get trace mask
 141     static wxTraceMask GetTraceMask();
 142
 143     // is this trace mask in the list?
 144     static bool IsAllowedTraceMask(const wxChar *mask);
 145
 146     // return the current loglevel limit
 147     static wxLogLevel GetLogLevel();
 148
 149
 150     // get the current timestamp format string (may be NULL)
 151     static const wxChar *GetTimestamp();
 152
 153
 154     %extend {
 155         static wxString TimeStamp() {
 156             wxString msg;
 157             wxLog::TimeStamp(&msg);
 158             return msg;
 159         }
 160     }
 161
 162     %pythonAppend Destroy "args[0].thisown = 0";
 163     %extend { void Destroy() { delete self; } }
 164 };
 165
 166
 167 //---------------------------------------------------------------------------
 168
 169
 170 class wxLogStderr : public wxLog
 171 {
 172 public:
 173     wxLogStderr(/* TODO: FILE *fp = (FILE *) NULL*/);
 174 };
 175
 176
 177 class wxLogTextCtrl : public wxLog
 178 {
 179 public:
 180     wxLogTextCtrl(wxTextCtrl *pTextCtrl);
 181 };
 182
 183
 184 class wxLogGui : public wxLog
 185 {
 186 public:
 187     wxLogGui();
 188 };
 189
 190 class wxLogWindow : public wxLog
 191 {
 192 public:
 193     wxLogWindow(wxFrame *pParent,         // the parent frame (can be NULL)
 194             const wxString& szTitle,      // the title of the frame
 195             bool bShow = true,            // show window immediately?
 196             bool bPassToOld = true);      // pass log messages to the old target?
 197
 198     void Show(bool bShow = true);
 199     wxFrame *GetFrame() const;
 200     wxLog *GetOldLog() const;
 201     bool IsPassingMessages() const;
 202     void PassMessages(bool bDoPass);
 203 };
 204
 205
 206 class wxLogChain : public wxLog
 207 {
 208 public:
 209     wxLogChain(wxLog *logger);
 210     void SetLog(wxLog *logger);
 211     void PassMessages(bool bDoPass);
 212     bool IsPassingMessages();
 213     wxLog *GetOldLog();
 214 };
 215
 216 // log everything to a buffer
 217 class wxLogBuffer : public wxLog
 218 {
 219 public:
 220     wxLogBuffer();
 221
 222     // get the string contents with all messages logged
 223     const wxString& GetBuffer() const { return m_str; }
 224
 225     // show the buffer contents to the user in the best possible way (this uses
 226     // wxMessageOutputMessageBox) and clear it
 227     virtual void Flush();
 228 };
 229
 230
 231 //---------------------------------------------------------------------------
 232
 233 unsigned long wxSysErrorCode();
 234 const wxString wxSysErrorMsg(unsigned long nErrCode = 0);
 235
 236 %{// Make some wrappers that double any % signs so they are 'escaped'
 237     void wxPyLogFatalError(const wxString& msg)
 238     {
 239         wxString m(msg);
 240         m.Replace(wxT("%"), wxT("%%"));
 241         wxLogFatalError(m);
 242     }
 243
 244     void wxPyLogError(const wxString& msg)
 245     {
 246         wxString m(msg);
 247         m.Replace(wxT("%"), wxT("%%"));
 248         wxLogError(m);
 249     }
 250
 251     void wxPyLogWarning(const wxString& msg)
 252     {
 253         wxString m(msg);
 254         m.Replace(wxT("%"), wxT("%%"));
 255         wxLogWarning(m);
 256     }
 257
 258     void wxPyLogMessage(const wxString& msg)
 259     {
 260         wxString m(msg);
 261         m.Replace(wxT("%"), wxT("%%"));
 262         wxLogMessage(m);
 263     }
 264
 265     void wxPyLogInfo(const wxString& msg)
 266     {
 267         wxString m(msg);
 268         m.Replace(wxT("%"), wxT("%%"));
 269         wxLogInfo(m);
 270     }
 271
 272     void wxPyLogDebug(const wxString& msg)
 273     {
 274         wxString m(msg);
 275         m.Replace(wxT("%"), wxT("%%"));
 276         wxLogDebug(m);
 277     }
 278
 279     void wxPyLogVerbose(const wxString& msg)
 280     {
 281         wxString m(msg);
 282         m.Replace(wxT("%"), wxT("%%"));
 283         wxLogVerbose(m);
 284     }
 285
 286     void wxPyLogStatus(const wxString& msg)
 287     {
 288         wxString m(msg);
 289         m.Replace(wxT("%"), wxT("%%"));
 290         wxLogStatus(m);
 291     }
 292
 293     void wxPyLogStatusFrame(wxFrame *pFrame, const wxString& msg)
 294     {
 295         wxString m(msg);
 296         m.Replace(wxT("%"), wxT("%%"));
 297         wxLogStatus(pFrame, m);
 298     }
 299
 300     void wxPyLogSysError(const wxString& msg)
 301     {
 302         wxString m(msg);
 303         m.Replace(wxT("%"), wxT("%%"));
 304         wxLogSysError(m);
 305     }
 306
 307     void wxPyLogGeneric(unsigned long level, const wxString& msg)
 308     {
 309         wxString m(msg);
 310         m.Replace(wxT("%"), wxT("%%"));
 311         wxLogGeneric(level, m);
 312     }
 313
 314     void wxPyLogTrace(unsigned long mask, const wxString& msg)
 315     {
 316         wxString m(msg);
 317         m.Replace(wxT("%"), wxT("%%"));
 318         wxLogTrace(mask, m);
 319     }
 320
 321     void wxPyLogTrace(const wxString& mask, const wxString& msg)
 322     {
 323         wxString m(msg);
 324         m.Replace(wxT("%"), wxT("%%"));
 325         wxLogTrace(mask, m);
 326     }
 327
 328 %}
 329
 330 %Rename(LogFatalError,  void, wxPyLogFatalError(const wxString& msg));
 331 %Rename(LogError,  void, wxPyLogError(const wxString& msg));
 332 %Rename(LogWarning,  void, wxPyLogWarning(const wxString& msg));
 333 %Rename(LogMessage,  void, wxPyLogMessage(const wxString& msg));
 334 %Rename(LogInfo,  void, wxPyLogInfo(const wxString& msg));
 335 %Rename(LogDebug,  void, wxPyLogDebug(const wxString& msg));
 336 %Rename(LogVerbose,  void, wxPyLogVerbose(const wxString& msg));
 337 %Rename(LogStatus,  void, wxPyLogStatus(const wxString& msg));
 338 %Rename(LogStatusFrame,  void, wxPyLogStatusFrame(wxFrame *pFrame, const wxString& msg));
 339 %Rename(LogSysError,  void, wxPyLogSysError(const wxString& msg));
 340
 341 %Rename(LogGeneric,  void, wxPyLogGeneric(unsigned long level, const wxString& msg));
 342
 343 %nokwargs wxPyLogTrace;
 344 %Rename(LogTrace,  void, wxPyLogTrace(unsigned long mask, const wxString& msg));
 345 %Rename(LogTrace,  void, wxPyLogTrace(const wxString& mask, const wxString& msg));
 346
 347
 348 // wxLogFatalError helper: show the (fatal) error to the user in a safe way,
 349 // i.e. without using wxMessageBox() for example because it could crash
 350 void wxSafeShowMessage(const wxString& title, const wxString& text);
 351
 352
 353
 354 // Suspress logging while an instance of this class exists
 355 class wxLogNull
 356 {
 357 public:
 358     wxLogNull();
 359     ~wxLogNull();
 360 };
 361
 362
 363
 364 //---------------------------------------------------------------------------
 365
 366 %{
 367 // A wxLog class that can be derived from in wxPython
 368 class wxPyLog : public wxLog {
 369 public:
 370     wxPyLog() : wxLog() {}
 371
 372     virtual void DoLog(wxLogLevel level, const wxChar *szString, time_t t) {
 373         bool found;
 374         wxPyBlock_t blocked = wxPyBeginBlockThreads();
 375         if ((found = wxPyCBH_findCallback(m_myInst, "DoLog"))) {
 376             PyObject* s = wx2PyString(szString);
 377             wxPyCBH_callCallback(m_myInst, Py_BuildValue("(iOi)", level, s, t));
 378             Py_DECREF(s);
 379         }
 380         wxPyEndBlockThreads(blocked);
 381         if (! found)
 382             wxLog::DoLog(level, szString, t);
 383     }
 384
 385     virtual void DoLogString(const wxChar *szString, time_t t) {
 386         bool found;
 387         wxPyBlock_t blocked = wxPyBeginBlockThreads();
 388         if ((found = wxPyCBH_findCallback(m_myInst, "DoLogString"))) {
 389             PyObject* s = wx2PyString(szString);
 390             wxPyCBH_callCallback(m_myInst, Py_BuildValue("(Oi)", s, t));
 391             Py_DECREF(s);
 392         }
 393         wxPyEndBlockThreads(blocked);
 394         if (! found)
 395             wxLog::DoLogString(szString, t);
 396     }
 397
 398     DEC_PYCALLBACK_VOID_(Flush);
 399     PYPRIVATE;
 400 };
 401 IMP_PYCALLBACK_VOID_(wxPyLog, wxLog, Flush);
 402 %}
 403
 404 // Now tell SWIG about it
 405 class wxPyLog : public wxLog {
 406 public:
 407     %pythonAppend wxPyLog   "self._setCallbackInfo(self, PyLog)"
 408
 409     wxPyLog();
 410
 411     void _setCallbackInfo(PyObject* self, PyObject* _class);
 412 };
 413
 414 //---------------------------------------------------------------------------