src/generic/logg.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        logg.cpp
   3 // Purpose:     wxLog-derived classes which need GUI support (the rest is in
   4 //              src/common/log.cpp)
   5 // Author:      Vadim Zeitlin
   6 // Modified by:
   7 // Created:     20.09.99 (extracted from src/common/log.cpp)
   8 // RCS-ID:      $Id$
   9 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
  10 // Licence:     wxWindows license
  11 /////////////////////////////////////////////////////////////////////////////
  12
  13 // ============================================================================
  14 // declarations
  15 // ============================================================================
  16
  17 // ----------------------------------------------------------------------------
  18 // headers
  19 // ----------------------------------------------------------------------------
  20
  21 // no #pragma implementation "log.h" because it's already in src/common/log.cpp
  22
  23 // For compilers that support precompilation, includes "wx.h".
  24 #include "wx/wxprec.h"
  25
  26 #ifdef __BORLANDC__
  27   #pragma hdrstop
  28 #endif
  29
  30 #if !wxUSE_GUI
  31     #error "This file can't be compiled without GUI!"
  32 #endif
  33
  34 #ifndef WX_PRECOMP
  35     #include "wx/app.h"
  36     #include "wx/intl.h"
  37     #include "wx/log.h"
  38     #include "wx/menu.h"
  39     #include "wx/frame.h"
  40     #include "wx/filedlg.h"
  41     #include "wx/msgdlg.h"
  42     #include "wx/textctrl.h"
  43     #include "wx/sizer.h"
  44     #include "wx/statbmp.h"
  45 #endif // WX_PRECOMP
  46
  47 #include "wx/file.h"
  48 #include "wx/textfile.h"
  49
  50 #ifdef  __WXMSW__
  51   // for OutputDebugString()
  52   #include  "wx/msw/private.h"
  53 #endif // Windows
  54
  55 // may be defined to 0 for old behavior (using wxMessageBox) - shouldn't be
  56 // changed normally (that's why it's here and not in setup.h)
  57 #define wxUSE_LOG_DIALOG 1
  58
  59 #if wxUSE_LOG_DIALOG
  60     #include "wx/datetime.h"
  61     #include "wx/listctrl.h"
  62     #include "wx/imaglist.h"
  63     #include "wx/image.h"
  64 #else // !wxUSE_TEXTFILE
  65     #include "wx/msgdlg.h"
  66 #endif // wxUSE_LOG_DIALOG/!wxUSE_LOG_DIALOG
  67
  68 // ----------------------------------------------------------------------------
  69 // private classes
  70 // ----------------------------------------------------------------------------
  71
  72 #if wxUSE_LOG_DIALOG
  73
  74 class wxLogDialog : public wxDialog
  75 {
  76 public:
  77     wxLogDialog(wxWindow *parent,
  78                 const wxArrayString& messages,
  79                 const wxArrayInt& severity,
  80                 const wxArrayLong& timess,
  81                 const wxString& caption,
  82                 long style);
  83     virtual ~wxLogDialog();
  84
  85     // event handlers
  86     void OnOk(wxCommandEvent& event);
  87     void OnDetails(wxCommandEvent& event);
  88     void OnListSelect(wxListEvent& event);
  89
  90 private:
  91     // the data for the listctrl
  92     wxArrayString m_messages;
  93     wxArrayInt m_severity;
  94     wxArrayLong m_times;
  95
  96     // the "toggle" button and its state
  97     wxButton *m_btnDetails;
  98     bool      m_showingDetails;
  99
 100     // the listctrl (not shown initially)
 101     wxListCtrl *m_listctrl;
 102
 103     // the translated "Details" string
 104     static wxString ms_details;
 105
 106     DECLARE_EVENT_TABLE()
 107 };
 108
 109 BEGIN_EVENT_TABLE(wxLogDialog, wxDialog)
 110     EVT_BUTTON(wxID_OK,     wxLogDialog::OnOk)
 111     EVT_BUTTON(wxID_MORE,   wxLogDialog::OnDetails)
 112     EVT_LIST_ITEM_SELECTED(-1, wxLogDialog::OnListSelect)
 113 END_EVENT_TABLE()
 114
 115 #endif // wxUSE_LOG_DIALOG
 116
 117 // ----------------------------------------------------------------------------
 118 // global variables
 119 // ----------------------------------------------------------------------------
 120
 121 // we use a global variable to store the frame pointer for wxLogStatus - bad,
 122 // but it's he easiest way
 123 static wxFrame *gs_pFrame; // FIXME MT-unsafe
 124
 125 // ============================================================================
 126 // implementation
 127 // ============================================================================
 128
 129 // ----------------------------------------------------------------------------
 130 // global functions
 131 // ----------------------------------------------------------------------------
 132
 133 // accepts an additional argument which tells to which frame the output should
 134 // be directed
 135 void wxLogStatus(wxFrame *pFrame, const wxChar *szFormat, ...)
 136 {
 137   wxString msg;
 138
 139   wxLog *pLog = wxLog::GetActiveTarget();
 140   if ( pLog != NULL ) {
 141     va_list argptr;
 142     va_start(argptr, szFormat);
 143     msg.PrintfV(szFormat, argptr);
 144     va_end(argptr);
 145
 146     wxASSERT( gs_pFrame == NULL ); // should be reset!
 147     gs_pFrame = pFrame;
 148     wxLog::OnLog(wxLOG_Status, msg, time(NULL));
 149     gs_pFrame = (wxFrame *) NULL;
 150   }
 151 }
 152
 153 // ----------------------------------------------------------------------------
 154 // wxLogTextCtrl implementation
 155 // ----------------------------------------------------------------------------
 156
 157 wxLogTextCtrl::wxLogTextCtrl(wxTextCtrl *pTextCtrl)
 158 {
 159     m_pTextCtrl = pTextCtrl;
 160 }
 161
 162 void wxLogTextCtrl::DoLogString(const wxChar *szString, time_t WXUNUSED(t))
 163 {
 164     wxString msg;
 165     TimeStamp(&msg);
 166     msg << szString << wxT('\n');
 167
 168     m_pTextCtrl->AppendText(msg);
 169 }
 170
 171 // ----------------------------------------------------------------------------
 172 // wxLogGui implementation (FIXME MT-unsafe)
 173 // ----------------------------------------------------------------------------
 174
 175 wxLogGui::wxLogGui()
 176 {
 177     // we must translate them here in the very beginning or we risk to have
 178     // reentrancy problems when called from inside wxGetTranslation() leading
 179     // to inifnite recursion
 180     m_error = _("Error");
 181     m_warning = _("Warning");
 182     m_info = _("Information");
 183
 184     Clear();
 185 }
 186
 187 void wxLogGui::Clear()
 188 {
 189     m_bErrors =
 190     m_bWarnings =
 191     m_bHasMessages = FALSE;
 192
 193     m_aMessages.Empty();
 194     m_aSeverity.Empty();
 195     m_aTimes.Empty();
 196 }
 197
 198 void wxLogGui::Flush()
 199 {
 200     if ( !m_bHasMessages )
 201         return;
 202
 203     // do it right now to block any new calls to Flush() while we're here
 204     m_bHasMessages = FALSE;
 205
 206     wxString title = wxTheApp->GetAppName();
 207     if ( !!title )
 208     {
 209         title[0u] = wxToupper(title[0u]);
 210         title += _T(' ');
 211     }
 212
 213     long style;
 214     if ( m_bErrors ) {
 215         title += m_error;
 216         style = wxICON_STOP;
 217     }
 218     else if ( m_bWarnings ) {
 219         title += m_warning;
 220         style = wxICON_EXCLAMATION;
 221     }
 222     else {
 223         title += m_info;
 224         style = wxICON_INFORMATION;
 225     }
 226
 227     // this is the best we can do here
 228     wxWindow *parent = wxTheApp->GetTopWindow();
 229
 230     size_t nMsgCount = m_aMessages.Count();
 231
 232     wxString str;
 233     if ( nMsgCount == 1 )
 234     {
 235         str = m_aMessages[0];
 236     }
 237     else // more than one message
 238     {
 239 #if wxUSE_LOG_DIALOG
 240         wxLogDialog dlg(parent,
 241                         m_aMessages, m_aSeverity, m_aTimes,
 242                         title, style);
 243
 244         // clear the message list before showing the dialog because while it's
 245         // shown some new messages may appear
 246         Clear();
 247
 248         (void)dlg.ShowModal();
 249 #else // !wxUSE_LOG_DIALOG
 250         // concatenate all strings (but not too many to not overfill the msg box)
 251         size_t nLines = 0;
 252
 253         // start from the most recent message
 254         for ( size_t n = nMsgCount; n > 0; n-- ) {
 255             // for Windows strings longer than this value are wrapped (NT 4.0)
 256             const size_t nMsgLineWidth = 156;
 257
 258             nLines += (m_aMessages[n - 1].Len() + nMsgLineWidth - 1) / nMsgLineWidth;
 259
 260             if ( nLines > 25 )  // don't put too many lines in message box
 261                 break;
 262
 263             str << m_aMessages[n - 1] << wxT("\n");
 264         }
 265 #endif // wxUSE_LOG_DIALOG/!wxUSE_LOG_DIALOG
 266     }
 267
 268     // this catches both cases of 1 message with wxUSE_LOG_DIALOG and any
 269     // situation without it
 270     if ( !!str )
 271     {
 272         wxMessageBox(str, title, wxOK | style, parent);
 273
 274         // no undisplayed messages whatsoever
 275         Clear();
 276     }
 277 }
 278
 279 // log all kinds of messages
 280 void wxLogGui::DoLog(wxLogLevel level, const wxChar *szString, time_t t)
 281 {
 282     switch ( level ) {
 283         case wxLOG_Info:
 284             if ( GetVerbose() )
 285         case wxLOG_Message:
 286             {
 287                 if ( !m_bErrors ) {
 288                     m_aMessages.Add(szString);
 289                     m_aSeverity.Add(wxLOG_Message);
 290                     m_aTimes.Add((long)t);
 291                     m_bHasMessages = TRUE;
 292                 }
 293             }
 294             break;
 295
 296         case wxLOG_Status:
 297 #if wxUSE_STATUSBAR
 298             {
 299                 // find the top window and set it's status text if it has any
 300                 wxFrame *pFrame = gs_pFrame;
 301                 if ( pFrame == NULL ) {
 302                     wxWindow *pWin = wxTheApp->GetTopWindow();
 303                     if ( pWin != NULL && pWin->IsKindOf(CLASSINFO(wxFrame)) ) {
 304                         pFrame = (wxFrame *)pWin;
 305                     }
 306                 }
 307
 308                 if ( pFrame && pFrame->GetStatusBar() )
 309                     pFrame->SetStatusText(szString);
 310             }
 311 #endif // wxUSE_STATUSBAR
 312             break;
 313
 314         case wxLOG_Trace:
 315         case wxLOG_Debug:
 316             #ifdef __WXDEBUG__
 317             {
 318                 #ifdef __WXMSW__
 319                     // don't prepend debug/trace here: it goes to the
 320                     // debug window anyhow, but do put a timestamp
 321                     wxString str;
 322                     TimeStamp(&str);
 323                     str << szString << wxT("\n\r");
 324                     OutputDebugString(str);
 325                 #else
 326                     // send them to stderr
 327                     wxFprintf(stderr, wxT("%s: %s\n"),
 328                               level == wxLOG_Trace ? wxT("Trace")
 329                                                    : wxT("Debug"),
 330                               szString);
 331                     fflush(stderr);
 332                 #endif
 333             }
 334             #endif // __WXDEBUG__
 335
 336             break;
 337
 338         case wxLOG_FatalError:
 339             // show this one immediately
 340             wxMessageBox(szString, _("Fatal error"), wxICON_HAND);
 341             wxExit();
 342             break;
 343
 344         case wxLOG_Error:
 345             if ( !m_bErrors ) {
 346 #if !wxUSE_LOG_DIALOG
 347                 // discard earlier informational messages if this is the 1st
 348                 // error because they might not make sense any more and showing
 349                 // them in a message box might be confusing
 350                 m_aMessages.Empty();
 351                 m_aSeverity.Empty();
 352                 m_aTimes.Empty();
 353 #endif // wxUSE_LOG_DIALOG
 354                 m_bErrors = TRUE;
 355             }
 356             // fall through
 357
 358         case wxLOG_Warning:
 359             if ( !m_bErrors ) {
 360                 // for the warning we don't discard the info messages
 361                 m_bWarnings = TRUE;
 362             }
 363
 364             m_aMessages.Add(szString);
 365             m_aSeverity.Add((int)level);
 366             m_aTimes.Add((long)t);
 367             m_bHasMessages = TRUE;
 368             break;
 369     }
 370 }
 371
 372 // ----------------------------------------------------------------------------
 373 // wxLogWindow and wxLogFrame implementation
 374 // ----------------------------------------------------------------------------
 375
 376 // log frame class
 377 // ---------------
 378 class wxLogFrame : public wxFrame
 379 {
 380 public:
 381     // ctor & dtor
 382     wxLogFrame(wxFrame *pParent, wxLogWindow *log, const wxChar *szTitle);
 383     virtual ~wxLogFrame();
 384
 385     // menu callbacks
 386     void OnClose(wxCommandEvent& event);
 387     void OnCloseWindow(wxCloseEvent& event);
 388 #if wxUSE_FILE
 389     void OnSave (wxCommandEvent& event);
 390 #endif // wxUSE_FILE
 391     void OnClear(wxCommandEvent& event);
 392
 393     void OnIdle(wxIdleEvent&);
 394
 395     // accessors
 396     wxTextCtrl *TextCtrl() const { return m_pTextCtrl; }
 397
 398 private:
 399     // use standard ids for our commands!
 400     enum
 401     {
 402         Menu_Close = wxID_CLOSE,
 403         Menu_Save  = wxID_SAVE,
 404         Menu_Clear = wxID_CLEAR
 405     };
 406
 407     // instead of closing just hide the window to be able to Show() it later
 408     void DoClose() { Show(FALSE); }
 409
 410     wxTextCtrl  *m_pTextCtrl;
 411     wxLogWindow *m_log;
 412
 413     DECLARE_EVENT_TABLE()
 414 };
 415
 416 BEGIN_EVENT_TABLE(wxLogFrame, wxFrame)
 417     // wxLogWindow menu events
 418     EVT_MENU(Menu_Close, wxLogFrame::OnClose)
 419 #if wxUSE_FILE
 420     EVT_MENU(Menu_Save,  wxLogFrame::OnSave)
 421 #endif // wxUSE_FILE
 422     EVT_MENU(Menu_Clear, wxLogFrame::OnClear)
 423
 424     EVT_CLOSE(wxLogFrame::OnCloseWindow)
 425 END_EVENT_TABLE()
 426
 427 wxLogFrame::wxLogFrame(wxFrame *pParent, wxLogWindow *log, const wxChar *szTitle)
 428           : wxFrame(pParent, -1, szTitle)
 429 {
 430     m_log = log;
 431
 432     m_pTextCtrl = new wxTextCtrl(this, -1, wxEmptyString, wxDefaultPosition,
 433             wxDefaultSize,
 434             wxTE_MULTILINE  |
 435             wxHSCROLL       |
 436             wxTE_READONLY);
 437
 438     // create menu
 439     wxMenuBar *pMenuBar = new wxMenuBar;
 440     wxMenu *pMenu = new wxMenu;
 441 #if wxUSE_FILE
 442     pMenu->Append(Menu_Save,  _("&Save..."), _("Save log contents to file"));
 443 #endif // wxUSE_FILE
 444     pMenu->Append(Menu_Clear, _("C&lear"), _("Clear the log contents"));
 445     pMenu->AppendSeparator();
 446     pMenu->Append(Menu_Close, _("&Close"), _("Close this window"));
 447     pMenuBar->Append(pMenu, _("&Log"));
 448     SetMenuBar(pMenuBar);
 449
 450 #if wxUSE_STATUSBAR
 451     // status bar for menu prompts
 452     CreateStatusBar();
 453 #endif // wxUSE_STATUSBAR
 454
 455     m_log->OnFrameCreate(this);
 456 }
 457
 458 void wxLogFrame::OnClose(wxCommandEvent& WXUNUSED(event))
 459 {
 460     DoClose();
 461 }
 462
 463 void wxLogFrame::OnCloseWindow(wxCloseEvent& WXUNUSED(event))
 464 {
 465     DoClose();
 466 }
 467
 468 #if wxUSE_FILE
 469 void wxLogFrame::OnSave(wxCommandEvent& WXUNUSED(event))
 470 {
 471     // get the file name
 472     // -----------------
 473     const wxChar *szFileName = wxSaveFileSelector(wxT("log"), wxT("txt"), wxT("log.txt"));
 474     if ( szFileName == NULL ) {
 475         // cancelled
 476         return;
 477     }
 478
 479     // open file
 480     // ---------
 481     wxFile file;
 482     bool bOk = FALSE;
 483     if ( wxFile::Exists(szFileName) ) {
 484         bool bAppend = FALSE;
 485         wxString strMsg;
 486         strMsg.Printf(_("Append log to file '%s' "
 487                     "(choosing [No] will overwrite it)?"), szFileName);
 488         switch ( wxMessageBox(strMsg, _("Question"), wxYES_NO | wxCANCEL) ) {
 489             case wxYES:
 490                 bAppend = TRUE;
 491                 break;
 492
 493             case wxNO:
 494                 bAppend = FALSE;
 495                 break;
 496
 497             case wxCANCEL:
 498                 return;
 499
 500             default:
 501                 wxFAIL_MSG(_("invalid message box return value"));
 502         }
 503
 504         if ( bAppend ) {
 505             bOk = file.Open(szFileName, wxFile::write_append);
 506         }
 507         else {
 508             bOk = file.Create(szFileName, TRUE /* overwrite */);
 509         }
 510     }
 511     else {
 512         bOk = file.Create(szFileName);
 513     }
 514
 515     // retrieve text and save it
 516     // -------------------------
 517     int nLines = m_pTextCtrl->GetNumberOfLines();
 518     for ( int nLine = 0; bOk && nLine < nLines; nLine++ ) {
 519         bOk = file.Write(m_pTextCtrl->GetLineText(nLine) +
 520                 // we're not going to pull in the whole wxTextFile if all we need is this...
 521 #if wxUSE_TEXTFILE
 522                 wxTextFile::GetEOL()
 523 #else // !wxUSE_TEXTFILE
 524                 '\n'
 525 #endif // wxUSE_TEXTFILE
 526                         );
 527     }
 528
 529     if ( bOk )
 530         bOk = file.Close();
 531
 532     if ( !bOk ) {
 533         wxLogError(_("Can't save log contents to file."));
 534     }
 535     else {
 536         wxLogStatus(this, _("Log saved to the file '%s'."), szFileName);
 537     }
 538 }
 539 #endif // wxUSE_FILE
 540
 541 void wxLogFrame::OnClear(wxCommandEvent& WXUNUSED(event))
 542 {
 543     m_pTextCtrl->Clear();
 544 }
 545
 546 wxLogFrame::~wxLogFrame()
 547 {
 548     m_log->OnFrameDelete(this);
 549 }
 550
 551 // wxLogWindow
 552 // -----------
 553 wxLogWindow::wxLogWindow(wxFrame *pParent,
 554                          const wxChar *szTitle,
 555                          bool bShow,
 556                          bool bDoPass)
 557 {
 558     m_bPassMessages = bDoPass;
 559
 560     m_pLogFrame = new wxLogFrame(pParent, this, szTitle);
 561     m_pOldLog = wxLog::SetActiveTarget(this);
 562
 563     if ( bShow )
 564         m_pLogFrame->Show(TRUE);
 565 }
 566
 567 void wxLogWindow::Show(bool bShow)
 568 {
 569     m_pLogFrame->Show(bShow);
 570 }
 571
 572 void wxLogWindow::Flush()
 573 {
 574     if ( m_pOldLog != NULL )
 575         m_pOldLog->Flush();
 576
 577     m_bHasMessages = FALSE;
 578 }
 579
 580 void wxLogWindow::DoLog(wxLogLevel level, const wxChar *szString, time_t t)
 581 {
 582     // first let the previous logger show it
 583     if ( m_pOldLog != NULL && m_bPassMessages ) {
 584         // bogus cast just to access protected DoLog
 585         ((wxLogWindow *)m_pOldLog)->DoLog(level, szString, t);
 586     }
 587
 588     if ( m_pLogFrame ) {
 589         switch ( level ) {
 590             case wxLOG_Status:
 591                 // by default, these messages are ignored by wxLog, so process
 592                 // them ourselves
 593                 if ( !wxIsEmpty(szString) )
 594                 {
 595                     wxString str;
 596                     str << _("Status: ") << szString;
 597                     DoLogString(str, t);
 598                 }
 599                 break;
 600
 601                 // don't put trace messages in the text window for 2 reasons:
 602                 // 1) there are too many of them
 603                 // 2) they may provoke other trace messages thus sending a program
 604                 //    into an infinite loop
 605             case wxLOG_Trace:
 606                 break;
 607
 608             default:
 609                 // and this will format it nicely and call our DoLogString()
 610                 wxLog::DoLog(level, szString, t);
 611         }
 612     }
 613
 614     m_bHasMessages = TRUE;
 615 }
 616
 617 void wxLogWindow::DoLogString(const wxChar *szString, time_t WXUNUSED(t))
 618 {
 619     // put the text into our window
 620     wxTextCtrl *pText = m_pLogFrame->TextCtrl();
 621
 622     // remove selection (WriteText is in fact ReplaceSelection)
 623 #ifdef __WXMSW__
 624     long nLen = pText->GetLastPosition();
 625     pText->SetSelection(nLen, nLen);
 626 #endif // Windows
 627
 628     wxString msg;
 629     TimeStamp(&msg);
 630     msg << szString << wxT('\n');
 631
 632     pText->AppendText(msg);
 633
 634     // TODO ensure that the line can be seen
 635 }
 636
 637 wxFrame *wxLogWindow::GetFrame() const
 638 {
 639     return m_pLogFrame;
 640 }
 641
 642 void wxLogWindow::OnFrameCreate(wxFrame * WXUNUSED(frame))
 643 {
 644 }
 645
 646 void wxLogWindow::OnFrameDelete(wxFrame * WXUNUSED(frame))
 647 {
 648     m_pLogFrame = (wxLogFrame *)NULL;
 649 }
 650
 651 wxLogWindow::~wxLogWindow()
 652 {
 653     delete m_pOldLog;
 654
 655     // may be NULL if log frame already auto destroyed itself
 656     delete m_pLogFrame;
 657 }
 658
 659 // ----------------------------------------------------------------------------
 660 // wxLogDialog
 661 // ----------------------------------------------------------------------------
 662
 663 #if wxUSE_LOG_DIALOG
 664
 665 static const size_t MARGIN = 10;
 666
 667 wxString wxLogDialog::ms_details;
 668
 669 wxLogDialog::wxLogDialog(wxWindow *parent,
 670                          const wxArrayString& messages,
 671                          const wxArrayInt& severity,
 672                          const wxArrayLong& times,
 673                          const wxString& caption,
 674                          long style)
 675            : wxDialog(parent, -1, caption )
 676 {
 677     if ( ms_details )
 678     {
 679         // ensure that we won't try to call wxGetTranslation() twice
 680         ms_details = _T("&Details");
 681         ms_details = wxGetTranslation(ms_details);
 682     }
 683
 684     size_t count = messages.GetCount();
 685     m_messages.Alloc(count);
 686     m_severity.Alloc(count);
 687     m_times.Alloc(count);
 688
 689     for ( size_t n = 0; n < count; n++ )
 690     {
 691         wxString msg = messages[n];
 692         do
 693         {
 694             m_messages.Add(msg.BeforeFirst(_T('\n')));
 695             msg = msg.AfterFirst(_T('\n'));
 696
 697             m_severity.Add(severity[n]);
 698             m_times.Add(times[n]);
 699         }
 700         while ( !!msg );
 701     }
 702
 703     m_showingDetails = FALSE; // not initially
 704     m_listctrl = (wxListCtrl *)NULL;
 705
 706     // create the controls which are always shown and layout them: we use
 707     // sizers even though our window is not resizeable to calculate the size of
 708     // the dialog properly
 709     wxBoxSizer *sizerTop = new wxBoxSizer(wxVERTICAL);
 710     wxBoxSizer *sizerButtons = new wxBoxSizer(wxVERTICAL);
 711     wxBoxSizer *sizerAll = new wxBoxSizer(wxHORIZONTAL);
 712
 713     wxButton *btnOk = new wxButton(this, wxID_OK, _("OK"));
 714     sizerButtons->Add(btnOk, 0, wxCENTRE|wxBOTTOM, MARGIN/2);
 715     m_btnDetails = new wxButton(this, wxID_MORE, ms_details + _T(" >>"));
 716     sizerButtons->Add(m_btnDetails, 0, wxCENTRE|wxTOP, MARGIN/2 - 1);
 717
 718     wxIcon icon = wxTheApp->GetStdIcon((int)(style & wxICON_MASK));
 719     sizerAll->Add(new wxStaticBitmap(this, -1, icon), 0, wxCENTRE);
 720     const wxString& message = messages.Last();
 721     sizerAll->Add(CreateTextSizer(message), 0, wxCENTRE|wxLEFT|wxRIGHT, MARGIN);
 722     sizerAll->Add(sizerButtons, 0, wxALIGN_RIGHT|wxLEFT, MARGIN);
 723
 724     sizerTop->Add(sizerAll, 0, wxCENTRE|wxALL, MARGIN);
 725
 726     SetAutoLayout(TRUE);
 727     SetSizer(sizerTop);
 728
 729     sizerTop->SetSizeHints(this);
 730     sizerTop->Fit(this);
 731
 732     btnOk->SetFocus();
 733
 734     // this can't happen any more as we don't use this dialog in this case
 735 #if 0
 736     if ( count == 1 )
 737     {
 738         // no details... it's easier to disable a button than to change the
 739         // dialog layout depending on whether we have details or not
 740         m_btnDetails->Disable();
 741     }
 742 #endif // 0
 743
 744     Centre();
 745 }
 746
 747 void wxLogDialog::OnListSelect(wxListEvent& event)
 748 {
 749     // we can't just disable the control because this looks ugly under Windows
 750     // (wrong bg colour, no scrolling...), but we still want to disable
 751     // selecting items - it makes no sense here
 752     m_listctrl->SetItemState(event.GetIndex(), 0, wxLIST_STATE_SELECTED);
 753 }
 754
 755 void wxLogDialog::OnOk(wxCommandEvent& WXUNUSED(event))
 756 {
 757     EndModal(wxID_OK);
 758 }
 759
 760 void wxLogDialog::OnDetails(wxCommandEvent& WXUNUSED(event))
 761 {
 762     wxSizer *sizer = GetSizer();
 763
 764     if ( m_showingDetails )
 765     {
 766         m_btnDetails->SetLabel(ms_details + _T(">>"));
 767
 768         sizer->Remove(m_listctrl);
 769     }
 770     else // show details now
 771     {
 772         m_btnDetails->SetLabel(wxString(_T("<< ")) + ms_details);
 773
 774         if ( !m_listctrl )
 775         {
 776             // create it now
 777             m_listctrl = new wxListCtrl(this, -1,
 778                                         wxDefaultPosition, wxDefaultSize,
 779                                         wxSUNKEN_BORDER |
 780                                         wxLC_REPORT |
 781                                         wxLC_NO_HEADER |
 782                                         wxLC_SINGLE_SEL);
 783             // no need to translate these strings as they're not shown to the
 784             // user anyhow (we use wxLC_NO_HEADER style)
 785             m_listctrl->InsertColumn(0, _T("Message"));
 786             m_listctrl->InsertColumn(1, _T("Time"));
 787
 788             // prepare the imagelist
 789             static const int ICON_SIZE = 16;
 790             wxImageList *imageList = new wxImageList(ICON_SIZE, ICON_SIZE);
 791
 792             // order should be the same as in the switch below!
 793             static const int icons[] =
 794             {
 795                 wxICON_ERROR,
 796                 wxICON_EXCLAMATION,
 797                 wxICON_INFORMATION
 798             };
 799
 800             for ( size_t icon = 0; icon < WXSIZEOF(icons); icon++ )
 801             {
 802                 wxBitmap bmp = wxTheApp->GetStdIcon(icons[icon]);
 803                 imageList->Add(wxImage(bmp).
 804                                 Rescale(ICON_SIZE, ICON_SIZE).
 805                                  ConvertToBitmap());
 806             }
 807
 808             m_listctrl->SetImageList(imageList, wxIMAGE_LIST_SMALL);
 809
 810             // and fill it
 811             wxString fmt = wxLog::GetTimestamp();
 812             if ( !fmt )
 813             {
 814                 // default format
 815                 fmt = _T("%X");
 816             }
 817
 818             size_t count = m_messages.GetCount();
 819             for ( size_t n = 0; n < count; n++ )
 820             {
 821                 int image;
 822                 switch ( m_severity[n] )
 823                 {
 824                     case wxLOG_Error:
 825                         image = 0;
 826                         break;
 827
 828                     case wxLOG_Warning:
 829                         image = 1;
 830                         break;
 831
 832                     default:
 833                         image = 2;
 834                 }
 835
 836                 m_listctrl->InsertItem(n, m_messages[n], image);
 837                 m_listctrl->SetItem(n, 1,
 838                                     wxDateTime((time_t)m_times[n]).Format(fmt));
 839             }
 840
 841             // let the columns size themselves
 842             m_listctrl->SetColumnWidth(0, wxLIST_AUTOSIZE);
 843             m_listctrl->SetColumnWidth(1, wxLIST_AUTOSIZE);
 844
 845             // get the approx height of the listctrl
 846             wxFont font = GetFont();
 847             if ( !font.Ok() )
 848                 font = *wxSWISS_FONT;
 849
 850             int y;
 851             GetTextExtent(_T("H"), (int*)NULL, &y, (int*)NULL, (int*)NULL, &font);
 852             int height = wxMin(y*(count + 3), 100);
 853             m_listctrl->SetSize(-1, height);
 854         }
 855
 856         sizer->Add(m_listctrl, 1, wxEXPAND|(wxALL & ~wxTOP), MARGIN);
 857     }
 858
 859     m_showingDetails = !m_showingDetails;
 860
 861     // in any case, our size changed - update
 862     sizer->SetSizeHints(this);
 863     sizer->Fit(this);
 864 }
 865
 866 wxLogDialog::~wxLogDialog()
 867 {
 868     if ( m_listctrl )
 869     {
 870         delete m_listctrl->GetImageList(wxIMAGE_LIST_SMALL);
 871     }
 872 }
 873
 874 #endif // wxUSE_LOG_DIALOG