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