src/generic/logg.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/generic/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 licence
  11 /////////////////////////////////////////////////////////////////////////////
  12
  13 // ============================================================================
  14 // declarations
  15 // ============================================================================
  16
  17 // ----------------------------------------------------------------------------
  18 // headers
  19 // ----------------------------------------------------------------------------
  20
  21 // For compilers that support precompilation, includes "wx.h".
  22 #include "wx/wxprec.h"
  23
  24 #ifdef __BORLANDC__
  25     #pragma hdrstop
  26 #endif
  27
  28 #ifndef WX_PRECOMP
  29     #include "wx/app.h"
  30     #include "wx/button.h"
  31     #include "wx/intl.h"
  32     #include "wx/log.h"
  33     #include "wx/menu.h"
  34     #include "wx/frame.h"
  35     #include "wx/filedlg.h"
  36     #include "wx/msgdlg.h"
  37     #include "wx/textctrl.h"
  38     #include "wx/sizer.h"
  39     #include "wx/statbmp.h"
  40     #include "wx/settings.h"
  41 #endif // WX_PRECOMP
  42
  43 #if wxUSE_LOGGUI || wxUSE_LOGWINDOW
  44
  45 #include "wx/file.h"
  46 #include "wx/textfile.h"
  47 #include "wx/statline.h"
  48 #include "wx/artprov.h"
  49 #include "wx/collpane.h"
  50
  51 #ifdef  __WXMSW__
  52     // for OutputDebugString()
  53     #include  "wx/msw/private.h"
  54 #endif // Windows
  55
  56 #ifdef  __WXPM__
  57     #include <time.h>
  58 #endif
  59
  60 #if wxUSE_LOG_DIALOG
  61     #include "wx/listctrl.h"
  62     #include "wx/imaglist.h"
  63     #include "wx/image.h"
  64 #endif // wxUSE_LOG_DIALOG/!wxUSE_LOG_DIALOG
  65
  66 #if defined(__MWERKS__) && wxUSE_UNICODE
  67     #include <wtime.h>
  68 #endif
  69
  70 #include "wx/datetime.h"
  71
  72 // the suffix we add to the button to show that the dialog can be expanded
  73 #define EXPAND_SUFFIX _T(" >>")
  74
  75 // ----------------------------------------------------------------------------
  76 // private classes
  77 // ----------------------------------------------------------------------------
  78
  79 #if wxUSE_LOG_DIALOG
  80
  81 // this function is a wrapper around strftime(3)
  82 // allows to exclude the usage of wxDateTime
  83 static wxString TimeStamp(const wxChar *format, time_t t)
  84 {
  85 #if wxUSE_DATETIME
  86     wxChar buf[4096];
  87     struct tm tm;
  88     if ( !wxStrftime(buf, WXSIZEOF(buf), format, wxLocaltime_r(&t, &tm)) )
  89     {
  90         // buffer is too small?
  91         wxFAIL_MSG(_T("strftime() failed"));
  92     }
  93     return wxString(buf);
  94 #else // !wxUSE_DATETIME
  95     return wxEmptyString;
  96 #endif // wxUSE_DATETIME/!wxUSE_DATETIME
  97 }
  98
  99
 100 class wxLogDialog : public wxDialog
 101 {
 102 public:
 103     wxLogDialog(wxWindow *parent,
 104                 const wxArrayString& messages,
 105                 const wxArrayInt& severity,
 106                 const wxArrayLong& timess,
 107                 const wxString& caption,
 108                 long style);
 109     virtual ~wxLogDialog();
 110
 111     // event handlers
 112     void OnOk(wxCommandEvent& event);
 113 #if wxUSE_FILE
 114     void OnSave(wxCommandEvent& event);
 115 #endif // wxUSE_FILE
 116     void OnListSelect(wxListEvent& event);
 117     void OnListItemActivated(wxListEvent& event);
 118
 119 private:
 120     // create controls needed for the details display
 121     void CreateDetailsControls(wxWindow *);
 122
 123     // if necessary truncates the given string and adds an ellipsis
 124     wxString EllipsizeString(const wxString &text)
 125     {
 126         if (ms_maxLength > 0 &&
 127             text.length() > ms_maxLength)
 128         {
 129             wxString ret(text);
 130             ret.Truncate(ms_maxLength);
 131             ret << "...";
 132             return ret;
 133         }
 134
 135         return text;
 136     }
 137
 138     // the data for the listctrl
 139     wxArrayString m_messages;
 140     wxArrayInt m_severity;
 141     wxArrayLong m_times;
 142
 143     // the controls which are not shown initially (but only when details
 144     // button is pressed)
 145     wxListCtrl *m_listctrl;
 146 #ifndef __SMARTPHONE__
 147 #if wxUSE_STATLINE
 148     wxStaticLine *m_statline;
 149 #endif // wxUSE_STATLINE
 150 #if wxUSE_FILE
 151     wxButton *m_btnSave;
 152 #endif // wxUSE_FILE
 153 #endif // __SMARTPHONE__
 154
 155     // the translated "Details" string
 156     static wxString ms_details;
 157
 158     // the maximum length of the log message
 159     static size_t ms_maxLength;
 160
 161     DECLARE_EVENT_TABLE()
 162     DECLARE_NO_COPY_CLASS(wxLogDialog)
 163 };
 164
 165 BEGIN_EVENT_TABLE(wxLogDialog, wxDialog)
 166     EVT_BUTTON(wxID_OK, wxLogDialog::OnOk)
 167 #if wxUSE_FILE
 168     EVT_BUTTON(wxID_SAVE,   wxLogDialog::OnSave)
 169 #endif // wxUSE_FILE
 170     EVT_LIST_ITEM_SELECTED(wxID_ANY, wxLogDialog::OnListSelect)
 171     EVT_LIST_ITEM_ACTIVATED(wxID_ANY, wxLogDialog::OnListItemActivated)
 172 END_EVENT_TABLE()
 173
 174 #endif // wxUSE_LOG_DIALOG
 175
 176 // ----------------------------------------------------------------------------
 177 // private functions
 178 // ----------------------------------------------------------------------------
 179
 180 #if wxUSE_FILE && wxUSE_FILEDLG
 181
 182 // pass an uninitialized file object, the function will ask the user for the
 183 // filename and try to open it, returns true on success (file was opened),
 184 // false if file couldn't be opened/created and -1 if the file selection
 185 // dialog was cancelled
 186 static int OpenLogFile(wxFile& file, wxString *filename = NULL, wxWindow *parent = NULL);
 187
 188 #endif // wxUSE_FILE
 189
 190 // ----------------------------------------------------------------------------
 191 // global variables
 192 // ----------------------------------------------------------------------------
 193
 194 // we use a global variable to store the frame pointer for wxLogStatus - bad,
 195 // but it's the easiest way
 196 static wxFrame *gs_pFrame = NULL; // FIXME MT-unsafe
 197
 198 // ============================================================================
 199 // implementation
 200 // ============================================================================
 201
 202 // ----------------------------------------------------------------------------
 203 // global functions
 204 // ----------------------------------------------------------------------------
 205
 206 // accepts an additional argument which tells to which frame the output should
 207 // be directed
 208 void wxVLogStatus(wxFrame *pFrame, const wxChar *szFormat, va_list argptr)
 209 {
 210   wxString msg;
 211
 212   wxLog *pLog = wxLog::GetActiveTarget();
 213   if ( pLog != NULL ) {
 214     msg.PrintfV(szFormat, argptr);
 215
 216     wxASSERT( gs_pFrame == NULL ); // should be reset!
 217     gs_pFrame = pFrame;
 218 #ifdef __WXWINCE__
 219     wxLog::OnLog(wxLOG_Status, msg, 0);
 220 #else
 221     wxLog::OnLog(wxLOG_Status, msg, time(NULL));
 222 #endif
 223     gs_pFrame = (wxFrame *) NULL;
 224   }
 225 }
 226
 227 void wxDoLogStatus(wxFrame *pFrame, const wxChar *szFormat, ...)
 228 {
 229     va_list argptr;
 230     va_start(argptr, szFormat);
 231     wxVLogStatus(pFrame, szFormat, argptr);
 232     va_end(argptr);
 233 }
 234
 235 // ----------------------------------------------------------------------------
 236 // wxLogGui implementation (FIXME MT-unsafe)
 237 // ----------------------------------------------------------------------------
 238
 239 #if wxUSE_LOGGUI
 240
 241 wxLogGui::wxLogGui()
 242 {
 243     Clear();
 244 }
 245
 246 void wxLogGui::Clear()
 247 {
 248     m_bErrors =
 249     m_bWarnings =
 250     m_bHasMessages = false;
 251
 252     m_aMessages.Empty();
 253     m_aSeverity.Empty();
 254     m_aTimes.Empty();
 255 }
 256
 257 void wxLogGui::Flush()
 258 {
 259     if ( !m_bHasMessages )
 260         return;
 261
 262     // do it right now to block any new calls to Flush() while we're here
 263     m_bHasMessages = false;
 264
 265     unsigned repeatCount = 0;
 266     if ( wxLog::GetRepetitionCounting() )
 267     {
 268         repeatCount = wxLog::DoLogNumberOfRepeats();
 269     }
 270
 271     wxString appName = wxTheApp->GetAppName();
 272     if ( !appName.empty() )
 273         appName[0u] = (wxChar)wxToupper(appName[0u]);
 274
 275     long style;
 276     wxString titleFormat;
 277     if ( m_bErrors ) {
 278         titleFormat = _("%s Error");
 279         style = wxICON_STOP;
 280     }
 281     else if ( m_bWarnings ) {
 282         titleFormat = _("%s Warning");
 283         style = wxICON_EXCLAMATION;
 284     }
 285     else {
 286         titleFormat = _("%s Information");
 287         style = wxICON_INFORMATION;
 288     }
 289
 290     wxString title;
 291     title.Printf(titleFormat, appName.c_str());
 292
 293     size_t nMsgCount = m_aMessages.Count();
 294
 295     // avoid showing other log dialogs until we're done with the dialog we're
 296     // showing right now: nested modal dialogs make for really bad UI!
 297     Suspend();
 298
 299     wxString str;
 300     if ( nMsgCount == 1 )
 301     {
 302         str = m_aMessages[0];
 303     }
 304     else // more than one message
 305     {
 306 #if wxUSE_LOG_DIALOG
 307
 308         if ( repeatCount > 0 )
 309             m_aMessages[nMsgCount-1] += wxString::Format(wxT(" (%s)"), m_aMessages[nMsgCount-2].c_str());
 310         wxLogDialog dlg(NULL,
 311                         m_aMessages, m_aSeverity, m_aTimes,
 312                         title, style);
 313
 314         // clear the message list before showing the dialog because while it's
 315         // shown some new messages may appear
 316         Clear();
 317
 318         (void)dlg.ShowModal();
 319 #else // !wxUSE_LOG_DIALOG
 320         // concatenate all strings (but not too many to not overfill the msg box)
 321         size_t nLines = 0;
 322
 323         // start from the most recent message
 324         for ( size_t n = nMsgCount; n > 0; n-- ) {
 325             // for Windows strings longer than this value are wrapped (NT 4.0)
 326             const size_t nMsgLineWidth = 156;
 327
 328             nLines += (m_aMessages[n - 1].Len() + nMsgLineWidth - 1) / nMsgLineWidth;
 329
 330             if ( nLines > 25 )  // don't put too many lines in message box
 331                 break;
 332
 333             str << m_aMessages[n - 1] << wxT("\n");
 334         }
 335 #endif // wxUSE_LOG_DIALOG/!wxUSE_LOG_DIALOG
 336     }
 337
 338     // this catches both cases of 1 message with wxUSE_LOG_DIALOG and any
 339     // situation without it
 340     if ( !str.empty() )
 341     {
 342         wxMessageBox(str, title, wxOK | style);
 343
 344         // no undisplayed messages whatsoever
 345         Clear();
 346     }
 347
 348     // allow flushing the logs again
 349     Resume();
 350 }
 351
 352 // log all kinds of messages
 353 void wxLogGui::DoLog(wxLogLevel level, const wxChar *szString, time_t t)
 354 {
 355     switch ( level ) {
 356         case wxLOG_Info:
 357             if ( GetVerbose() )
 358         case wxLOG_Message:
 359             {
 360                 m_aMessages.Add(szString);
 361                 m_aSeverity.Add(wxLOG_Message);
 362                 m_aTimes.Add((long)t);
 363                 m_bHasMessages = true;
 364             }
 365             break;
 366
 367         case wxLOG_Status:
 368 #if wxUSE_STATUSBAR
 369             {
 370                 // find the top window and set it's status text if it has any
 371                 wxFrame *pFrame = gs_pFrame;
 372                 if ( pFrame == NULL ) {
 373                     wxWindow *pWin = wxTheApp->GetTopWindow();
 374                     if ( pWin != NULL && pWin->IsKindOf(CLASSINFO(wxFrame)) ) {
 375                         pFrame = (wxFrame *)pWin;
 376                     }
 377                 }
 378
 379                 if ( pFrame && pFrame->GetStatusBar() )
 380                     pFrame->SetStatusText(szString);
 381             }
 382 #endif // wxUSE_STATUSBAR
 383             break;
 384
 385         case wxLOG_Trace:
 386         case wxLOG_Debug:
 387             #ifdef __WXDEBUG__
 388             {
 389                 wxString str;
 390                 TimeStamp(&str);
 391                 str += szString;
 392
 393                 #if defined(__WXMSW__) && !defined(__WXMICROWIN__)
 394                     // don't prepend debug/trace here: it goes to the
 395                     // debug window anyhow
 396                     str += wxT("\r\n");
 397                     OutputDebugString(str);
 398                 #else
 399                     // send them to stderr
 400                     wxFprintf(stderr, wxT("[%s] %s\n"),
 401                               level == wxLOG_Trace ? wxT("Trace")
 402                                                    : wxT("Debug"),
 403                               str.c_str());
 404                     fflush(stderr);
 405                 #endif
 406             }
 407             #endif // __WXDEBUG__
 408
 409             break;
 410
 411         case wxLOG_FatalError:
 412             // show this one immediately
 413             wxMessageBox(szString, _("Fatal error"), wxICON_HAND);
 414             wxExit();
 415             break;
 416
 417         case wxLOG_Error:
 418             if ( !m_bErrors ) {
 419 #if !wxUSE_LOG_DIALOG
 420                 // discard earlier informational messages if this is the 1st
 421                 // error because they might not make sense any more and showing
 422                 // them in a message box might be confusing
 423                 m_aMessages.Empty();
 424                 m_aSeverity.Empty();
 425                 m_aTimes.Empty();
 426 #endif // wxUSE_LOG_DIALOG
 427                 m_bErrors = true;
 428             }
 429             // fall through
 430
 431         case wxLOG_Warning:
 432             if ( !m_bErrors ) {
 433                 // for the warning we don't discard the info messages
 434                 m_bWarnings = true;
 435             }
 436
 437             m_aMessages.Add(szString);
 438             m_aSeverity.Add((int)level);
 439             m_aTimes.Add((long)t);
 440             m_bHasMessages = true;
 441             break;
 442     }
 443 }
 444
 445 #endif   // wxUSE_LOGGUI
 446
 447 // ----------------------------------------------------------------------------
 448 // wxLogWindow and wxLogFrame implementation
 449 // ----------------------------------------------------------------------------
 450
 451 #if wxUSE_LOGWINDOW
 452
 453 // log frame class
 454 // ---------------
 455 class wxLogFrame : public wxFrame
 456 {
 457 public:
 458     // ctor & dtor
 459     wxLogFrame(wxWindow *pParent, wxLogWindow *log, const wxChar *szTitle);
 460     virtual ~wxLogFrame();
 461
 462     // menu callbacks
 463     void OnClose(wxCommandEvent& event);
 464     void OnCloseWindow(wxCloseEvent& event);
 465 #if wxUSE_FILE
 466     void OnSave (wxCommandEvent& event);
 467 #endif // wxUSE_FILE
 468     void OnClear(wxCommandEvent& event);
 469
 470     // accessors
 471     wxTextCtrl *TextCtrl() const { return m_pTextCtrl; }
 472
 473 private:
 474     // use standard ids for our commands!
 475     enum
 476     {
 477         Menu_Close = wxID_CLOSE,
 478         Menu_Save  = wxID_SAVE,
 479         Menu_Clear = wxID_CLEAR
 480     };
 481
 482     // common part of OnClose() and OnCloseWindow()
 483     void DoClose();
 484
 485     wxTextCtrl  *m_pTextCtrl;
 486     wxLogWindow *m_log;
 487
 488     DECLARE_EVENT_TABLE()
 489     DECLARE_NO_COPY_CLASS(wxLogFrame)
 490 };
 491
 492 BEGIN_EVENT_TABLE(wxLogFrame, wxFrame)
 493     // wxLogWindow menu events
 494     EVT_MENU(Menu_Close, wxLogFrame::OnClose)
 495 #if wxUSE_FILE
 496     EVT_MENU(Menu_Save,  wxLogFrame::OnSave)
 497 #endif // wxUSE_FILE
 498     EVT_MENU(Menu_Clear, wxLogFrame::OnClear)
 499
 500     EVT_CLOSE(wxLogFrame::OnCloseWindow)
 501 END_EVENT_TABLE()
 502
 503 wxLogFrame::wxLogFrame(wxWindow *pParent, wxLogWindow *log, const wxChar *szTitle)
 504           : wxFrame(pParent, wxID_ANY, szTitle)
 505 {
 506     m_log = log;
 507
 508     m_pTextCtrl = new wxTextCtrl(this, wxID_ANY, wxEmptyString, wxDefaultPosition,
 509             wxDefaultSize,
 510             wxTE_MULTILINE  |
 511             wxHSCROLL       |
 512             // needed for Win32 to avoid 65Kb limit but it doesn't work well
 513             // when using RichEdit 2.0 which we always do in the Unicode build
 514 #if !wxUSE_UNICODE
 515             wxTE_RICH       |
 516 #endif // !wxUSE_UNICODE
 517             wxTE_READONLY);
 518
 519 #if wxUSE_MENUS
 520     // create menu
 521     wxMenuBar *pMenuBar = new wxMenuBar;
 522     wxMenu *pMenu = new wxMenu;
 523 #if wxUSE_FILE
 524     pMenu->Append(Menu_Save,  _("&Save..."), _("Save log contents to file"));
 525 #endif // wxUSE_FILE
 526     pMenu->Append(Menu_Clear, _("C&lear"), _("Clear the log contents"));
 527     pMenu->AppendSeparator();
 528     pMenu->Append(Menu_Close, _("&Close"), _("Close this window"));
 529     pMenuBar->Append(pMenu, _("&Log"));
 530     SetMenuBar(pMenuBar);
 531 #endif // wxUSE_MENUS
 532
 533 #if wxUSE_STATUSBAR
 534     // status bar for menu prompts
 535     CreateStatusBar();
 536 #endif // wxUSE_STATUSBAR
 537
 538     m_log->OnFrameCreate(this);
 539 }
 540
 541 void wxLogFrame::DoClose()
 542 {
 543     if ( m_log->OnFrameClose(this) )
 544     {
 545         // instead of closing just hide the window to be able to Show() it
 546         // later
 547         Show(false);
 548     }
 549 }
 550
 551 void wxLogFrame::OnClose(wxCommandEvent& WXUNUSED(event))
 552 {
 553     DoClose();
 554 }
 555
 556 void wxLogFrame::OnCloseWindow(wxCloseEvent& WXUNUSED(event))
 557 {
 558     DoClose();
 559 }
 560
 561 #if wxUSE_FILE
 562 void wxLogFrame::OnSave(wxCommandEvent& WXUNUSED(event))
 563 {
 564 #if wxUSE_FILEDLG
 565     wxString filename;
 566     wxFile file;
 567     int rc = OpenLogFile(file, &filename, this);
 568     if ( rc == -1 )
 569     {
 570         // cancelled
 571         return;
 572     }
 573
 574     bool bOk = rc != 0;
 575
 576     // retrieve text and save it
 577     // -------------------------
 578     int nLines = m_pTextCtrl->GetNumberOfLines();
 579     for ( int nLine = 0; bOk && nLine < nLines; nLine++ ) {
 580         bOk = file.Write(m_pTextCtrl->GetLineText(nLine) +
 581                          wxTextFile::GetEOL());
 582     }
 583
 584     if ( bOk )
 585         bOk = file.Close();
 586
 587     if ( !bOk ) {
 588         wxLogError(_("Can't save log contents to file."));
 589     }
 590     else {
 591         wxLogStatus(this, _("Log saved to the file '%s'."), filename.c_str());
 592     }
 593 #endif
 594 }
 595 #endif // wxUSE_FILE
 596
 597 void wxLogFrame::OnClear(wxCommandEvent& WXUNUSED(event))
 598 {
 599     m_pTextCtrl->Clear();
 600 }
 601
 602 wxLogFrame::~wxLogFrame()
 603 {
 604     m_log->OnFrameDelete(this);
 605 }
 606
 607 // wxLogWindow
 608 // -----------
 609
 610 wxLogWindow::wxLogWindow(wxWindow *pParent,
 611                          const wxChar *szTitle,
 612                          bool bShow,
 613                          bool bDoPass)
 614 {
 615     PassMessages(bDoPass);
 616
 617     m_pLogFrame = new wxLogFrame(pParent, this, szTitle);
 618
 619     if ( bShow )
 620         m_pLogFrame->Show();
 621 }
 622
 623 void wxLogWindow::Show(bool bShow)
 624 {
 625     m_pLogFrame->Show(bShow);
 626 }
 627
 628 void wxLogWindow::DoLog(wxLogLevel level, const wxChar *szString, time_t t)
 629 {
 630     // first let the previous logger show it
 631     wxLogPassThrough::DoLog(level, szString, t);
 632
 633     if ( m_pLogFrame ) {
 634         switch ( level ) {
 635             case wxLOG_Status:
 636                 // by default, these messages are ignored by wxLog, so process
 637                 // them ourselves
 638                 if ( !wxIsEmpty(szString) )
 639                 {
 640                     wxString str;
 641                     str << _("Status: ") << szString;
 642                     DoLogString(str, t);
 643                 }
 644                 break;
 645
 646                 // don't put trace messages in the text window for 2 reasons:
 647                 // 1) there are too many of them
 648                 // 2) they may provoke other trace messages thus sending a program
 649                 //    into an infinite loop
 650             case wxLOG_Trace:
 651                 break;
 652
 653             default:
 654                 // and this will format it nicely and call our DoLogString()
 655                 wxLog::DoLog(level, szString, t);
 656         }
 657     }
 658 }
 659
 660 void wxLogWindow::DoLogString(const wxChar *szString, time_t WXUNUSED(t))
 661 {
 662     // put the text into our window
 663     wxTextCtrl *pText = m_pLogFrame->TextCtrl();
 664
 665     // remove selection (WriteText is in fact ReplaceSelection)
 666 #ifdef __WXMSW__
 667     wxTextPos nLen = pText->GetLastPosition();
 668     pText->SetSelection(nLen, nLen);
 669 #endif // Windows
 670
 671     wxString msg;
 672     TimeStamp(&msg);
 673     msg << szString << wxT('\n');
 674
 675     pText->AppendText(msg);
 676
 677     // TODO ensure that the line can be seen
 678 }
 679
 680 wxFrame *wxLogWindow::GetFrame() const
 681 {
 682     return m_pLogFrame;
 683 }
 684
 685 void wxLogWindow::OnFrameCreate(wxFrame * WXUNUSED(frame))
 686 {
 687 }
 688
 689 bool wxLogWindow::OnFrameClose(wxFrame * WXUNUSED(frame))
 690 {
 691     // allow to close
 692     return true;
 693 }
 694
 695 void wxLogWindow::OnFrameDelete(wxFrame * WXUNUSED(frame))
 696 {
 697     m_pLogFrame = (wxLogFrame *)NULL;
 698 }
 699
 700 wxLogWindow::~wxLogWindow()
 701 {
 702     // may be NULL if log frame already auto destroyed itself
 703     delete m_pLogFrame;
 704 }
 705
 706 #endif // wxUSE_LOGWINDOW
 707
 708 // ----------------------------------------------------------------------------
 709 // wxLogDialog
 710 // ----------------------------------------------------------------------------
 711
 712 #if wxUSE_LOG_DIALOG
 713
 714 #ifndef __SMARTPHONE__
 715 static const size_t MARGIN = 10;
 716 #else
 717 static const size_t MARGIN = 0;
 718 #endif
 719
 720 wxString wxLogDialog::ms_details;
 721 size_t wxLogDialog::ms_maxLength = 0;
 722
 723 wxLogDialog::wxLogDialog(wxWindow *parent,
 724                          const wxArrayString& messages,
 725                          const wxArrayInt& severity,
 726                          const wxArrayLong& times,
 727                          const wxString& caption,
 728                          long style)
 729            : wxDialog(parent, wxID_ANY, caption,
 730                       wxDefaultPosition, wxDefaultSize,
 731                       wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER)
 732 {
 733     // init the static variables:
 734
 735     if ( ms_details.empty() )
 736     {
 737         // ensure that we won't loop here if wxGetTranslation()
 738         // happens to pop up a Log message while translating this :-)
 739         ms_details = wxTRANSLATE("&Details");
 740         ms_details = wxGetTranslation(ms_details);
 741 #ifdef __SMARTPHONE__
 742         ms_details = wxStripMenuCodes(ms_details);
 743 #endif
 744     }
 745
 746     if ( ms_maxLength == 0 )
 747     {
 748         ms_maxLength = (2 * wxGetDisplaySize().x/3) / GetCharWidth();
 749     }
 750
 751     size_t count = messages.GetCount();
 752     m_messages.Alloc(count);
 753     m_severity.Alloc(count);
 754     m_times.Alloc(count);
 755
 756     for ( size_t n = 0; n < count; n++ )
 757     {
 758         m_messages.Add(messages[n]);
 759         m_severity.Add(severity[n]);
 760         m_times.Add(times[n]);
 761     }
 762
 763     m_listctrl = (wxListCtrl *)NULL;
 764
 765 #ifndef __SMARTPHONE__
 766
 767 #if wxUSE_STATLINE
 768     m_statline = (wxStaticLine *)NULL;
 769 #endif // wxUSE_STATLINE
 770
 771 #if wxUSE_FILE
 772     m_btnSave = (wxButton *)NULL;
 773 #endif // wxUSE_FILE
 774
 775 #endif // __SMARTPHONE__
 776
 777     bool isPda = (wxSystemSettings::GetScreenType() <= wxSYS_SCREEN_PDA);
 778
 779     // create the controls which are always shown and layout them: we use
 780     // sizers even though our window is not resizeable to calculate the size of
 781     // the dialog properly
 782     wxBoxSizer *sizerTop = new wxBoxSizer(wxVERTICAL);
 783     wxBoxSizer *sizerAll = new wxBoxSizer(isPda ? wxVERTICAL : wxHORIZONTAL);
 784
 785     wxBitmap bitmap;
 786     switch ( style & wxICON_MASK )
 787     {
 788         case wxICON_ERROR:
 789             bitmap = wxArtProvider::GetBitmap(wxART_ERROR, wxART_MESSAGE_BOX);
 790 #ifdef __WXPM__
 791             bitmap.SetId(wxICON_SMALL_ERROR);
 792 #endif
 793             break;
 794
 795         case wxICON_INFORMATION:
 796             bitmap = wxArtProvider::GetBitmap(wxART_INFORMATION, wxART_MESSAGE_BOX);
 797 #ifdef __WXPM__
 798             bitmap.SetId(wxICON_SMALL_INFO);
 799 #endif
 800             break;
 801
 802         case wxICON_WARNING:
 803             bitmap = wxArtProvider::GetBitmap(wxART_WARNING, wxART_MESSAGE_BOX);
 804 #ifdef __WXPM__
 805             bitmap.SetId(wxICON_SMALL_WARNING);
 806 #endif
 807             break;
 808
 809         default:
 810             wxFAIL_MSG(_T("incorrect log style"));
 811     }
 812
 813     if (!isPda)
 814         sizerAll->Add(new wxStaticBitmap(this, wxID_ANY, bitmap), 0,
 815                   wxALIGN_CENTRE_VERTICAL);
 816
 817     // create the text sizer with a minimal size so that we are sure it won't be too small
 818     wxString message = EllipsizeString(messages.Last());
 819     wxSizer *szText = CreateTextSizer(message);
 820     szText->SetMinSize(wxMin(300, wxGetDisplaySize().x / 3), -1);
 821
 822     sizerAll->Add(szText, 1,
 823                   wxALIGN_CENTRE_VERTICAL | wxLEFT | wxRIGHT, MARGIN);
 824
 825     wxButton *btnOk = new wxButton(this, wxID_OK);
 826     sizerAll->Add(btnOk, 0, isPda ? wxCENTRE : wxCENTRE|wxBOTTOM, MARGIN/2);
 827
 828     sizerTop->Add(sizerAll, 0, wxALL | wxEXPAND, MARGIN);
 829
 830
 831     // add the details pane
 832
 833 #ifndef __SMARTPHONE__
 834     wxCollapsiblePane *collpane = new wxCollapsiblePane(this, wxID_ANY, ms_details);
 835     sizerTop->Add(collpane, 1, wxGROW|wxALL, MARGIN);
 836
 837     wxWindow *win = collpane->GetPane();
 838     wxSizer *paneSz = new wxBoxSizer(wxVERTICAL);
 839
 840     CreateDetailsControls(win);
 841
 842     paneSz->Add(m_listctrl, 1, wxEXPAND | wxTOP, MARGIN);
 843
 844 #if wxUSE_FILE && !defined(__SMARTPHONE__)
 845     paneSz->Add(m_btnSave, 0, wxALIGN_RIGHT | wxTOP, MARGIN);
 846 #endif // wxUSE_FILE
 847
 848     win->SetSizer(paneSz);
 849     paneSz->SetSizeHints(win);
 850 #else // __SMARTPHONE__
 851     SetLeftMenu(wxID_OK);
 852     SetRightMenu(wxID_MORE, ms_details + EXPAND_SUFFIX);
 853 #endif // __SMARTPHONE__/!__SMARTPHONE__
 854
 855     SetSizerAndFit(sizerTop);
 856
 857     Centre();
 858
 859     if (isPda)
 860     {
 861         // Move up the screen so that when we expand the dialog,
 862         // there's enough space.
 863         Move(wxPoint(GetPosition().x, GetPosition().y / 2));
 864     }
 865 }
 866
 867 void wxLogDialog::CreateDetailsControls(wxWindow *parent)
 868 {
 869 #ifndef __SMARTPHONE__
 870     // create the save button and separator line if possible
 871 #if wxUSE_FILE
 872     m_btnSave = new wxButton(parent, wxID_SAVE);
 873 #endif // wxUSE_FILE
 874
 875 #endif // __SMARTPHONE__
 876
 877     // create the list ctrl now
 878     m_listctrl = new wxListCtrl(parent, wxID_ANY,
 879                                 wxDefaultPosition, wxDefaultSize,
 880                                 wxSUNKEN_BORDER |
 881                                 wxLC_REPORT |
 882                                 wxLC_NO_HEADER |
 883                                 wxLC_SINGLE_SEL);
 884 #ifdef __WXWINCE__
 885     // This makes a big aesthetic difference on WinCE but I
 886     // don't want to risk problems on other platforms
 887     m_listctrl->Hide();
 888 #endif
 889
 890     // no need to translate these strings as they're not shown to the
 891     // user anyhow (we use wxLC_NO_HEADER style)
 892     m_listctrl->InsertColumn(0, _T("Message"));
 893     m_listctrl->InsertColumn(1, _T("Time"));
 894
 895     // prepare the imagelist
 896     static const int ICON_SIZE = 16;
 897     wxImageList *imageList = new wxImageList(ICON_SIZE, ICON_SIZE);
 898
 899     // order should be the same as in the switch below!
 900     static const wxChar* icons[] =
 901     {
 902         wxART_ERROR,
 903         wxART_WARNING,
 904         wxART_INFORMATION
 905     };
 906
 907     bool loadedIcons = true;
 908
 909     for ( size_t icon = 0; icon < WXSIZEOF(icons); icon++ )
 910     {
 911         wxBitmap bmp = wxArtProvider::GetBitmap(icons[icon], wxART_MESSAGE_BOX,
 912                                                 wxSize(ICON_SIZE, ICON_SIZE));
 913
 914         // This may very well fail if there are insufficient colours available.
 915         // Degrade gracefully.
 916         if ( !bmp.Ok() )
 917         {
 918             loadedIcons = false;
 919
 920             break;
 921         }
 922
 923         imageList->Add(bmp);
 924     }
 925
 926     m_listctrl->SetImageList(imageList, wxIMAGE_LIST_SMALL);
 927
 928     // and fill it
 929     wxString fmt = wxLog::GetTimestamp();
 930     if ( !fmt )
 931     {
 932         // default format
 933         fmt = _T("%c");
 934     }
 935
 936     size_t count = m_messages.GetCount();
 937     for ( size_t n = 0; n < count; n++ )
 938     {
 939         int image;
 940
 941         if ( loadedIcons )
 942         {
 943             switch ( m_severity[n] )
 944             {
 945                 case wxLOG_Error:
 946                     image = 0;
 947                     break;
 948
 949                 case wxLOG_Warning:
 950                     image = 1;
 951                     break;
 952
 953                 default:
 954                     image = 2;
 955             }
 956         }
 957         else // failed to load images
 958         {
 959             image = -1;
 960         }
 961
 962         wxString msg = m_messages[n];
 963         msg.Replace(wxT("\n"), wxT(" "));
 964         msg = EllipsizeString(msg);
 965
 966         m_listctrl->InsertItem(n, msg, image);
 967         m_listctrl->SetItem(n, 1, TimeStamp(fmt, (time_t)m_times[n]));
 968     }
 969
 970     // let the columns size themselves
 971     m_listctrl->SetColumnWidth(0, wxLIST_AUTOSIZE);
 972     m_listctrl->SetColumnWidth(1, wxLIST_AUTOSIZE);
 973
 974     // calculate an approximately nice height for the listctrl
 975     int height = GetCharHeight()*(count + 4);
 976
 977     // but check that the dialog won't fall fown from the screen
 978     //
 979     // we use GetMinHeight() to get the height of the dialog part without the
 980     // details and we consider that the "Save" button below and the separator
 981     // line (and the margins around it) take about as much, hence double it
 982     int heightMax = wxGetDisplaySize().y - GetPosition().y - 2*GetMinHeight();
 983
 984     // we should leave a margin
 985     heightMax *= 9;
 986     heightMax /= 10;
 987
 988     m_listctrl->SetSize(wxDefaultCoord, wxMin(height, heightMax));
 989 }
 990
 991 void wxLogDialog::OnListSelect(wxListEvent& event)
 992 {
 993     // we can't just disable the control because this looks ugly under Windows
 994     // (wrong bg colour, no scrolling...), but we still want to disable
 995     // selecting items - it makes no sense here
 996     m_listctrl->SetItemState(event.GetIndex(), 0, wxLIST_STATE_SELECTED);
 997 }
 998
 999 void wxLogDialog::OnListItemActivated(wxListEvent& event)
1000 {
1001     // show the activated item in a message box
1002     // This allow the user to correctly display the logs which are longer
1003     // than the listctrl and thus gets truncated or those which contains
1004     // newlines.
1005
1006     // NB: don't do:
1007     //    wxString str = m_listctrl->GetItemText(event.GetIndex());
1008     // as there's a 260 chars limit on the items inside a wxListCtrl in wxMSW.
1009     wxString str = m_messages[event.GetIndex()];
1010
1011     // wxMessageBox will nicely handle the '\n' in the string (if any)
1012     // and supports long strings
1013     wxMessageBox(str, wxT("Log message"), wxOK, this);
1014 }
1015
1016 void wxLogDialog::OnOk(wxCommandEvent& WXUNUSED(event))
1017 {
1018     EndModal(wxID_OK);
1019 }
1020
1021 #if wxUSE_FILE
1022
1023 void wxLogDialog::OnSave(wxCommandEvent& WXUNUSED(event))
1024 {
1025 #if wxUSE_FILEDLG
1026     wxFile file;
1027     int rc = OpenLogFile(file, NULL, this);
1028     if ( rc == -1 )
1029     {
1030         // cancelled
1031         return;
1032     }
1033
1034     bool ok = rc != 0;
1035
1036     wxString fmt = wxLog::GetTimestamp();
1037     if ( !fmt )
1038     {
1039         // default format
1040         fmt = _T("%c");
1041     }
1042
1043     size_t count = m_messages.GetCount();
1044     for ( size_t n = 0; ok && (n < count); n++ )
1045     {
1046         wxString line;
1047         line << TimeStamp(fmt, (time_t)m_times[n])
1048              << _T(": ")
1049              << m_messages[n]
1050              << wxTextFile::GetEOL();
1051
1052         ok = file.Write(line);
1053     }
1054
1055     if ( ok )
1056         ok = file.Close();
1057
1058     if ( !ok )
1059         wxLogError(_("Can't save log contents to file."));
1060 #endif // wxUSE_FILEDLG
1061 }
1062
1063 #endif // wxUSE_FILE
1064
1065 wxLogDialog::~wxLogDialog()
1066 {
1067     if ( m_listctrl )
1068     {
1069         delete m_listctrl->GetImageList(wxIMAGE_LIST_SMALL);
1070     }
1071 }
1072
1073 #endif // wxUSE_LOG_DIALOG
1074
1075 #if wxUSE_FILE && wxUSE_FILEDLG
1076
1077 // pass an uninitialized file object, the function will ask the user for the
1078 // filename and try to open it, returns true on success (file was opened),
1079 // false if file couldn't be opened/created and -1 if the file selection
1080 // dialog was cancelled
1081 static int OpenLogFile(wxFile& file, wxString *pFilename, wxWindow *parent)
1082 {
1083     // get the file name
1084     // -----------------
1085     wxString filename = wxSaveFileSelector(wxT("log"), wxT("txt"), wxT("log.txt"), parent);
1086     if ( !filename ) {
1087         // cancelled
1088         return -1;
1089     }
1090
1091     // open file
1092     // ---------
1093     bool bOk wxDUMMY_INITIALIZE(false);
1094     if ( wxFile::Exists(filename) ) {
1095         bool bAppend = false;
1096         wxString strMsg;
1097         strMsg.Printf(_("Append log to file '%s' (choosing [No] will overwrite it)?"),
1098                       filename.c_str());
1099         switch ( wxMessageBox(strMsg, _("Question"),
1100                               wxICON_QUESTION | wxYES_NO | wxCANCEL) ) {
1101             case wxYES:
1102                 bAppend = true;
1103                 break;
1104
1105             case wxNO:
1106                 bAppend = false;
1107                 break;
1108
1109             case wxCANCEL:
1110                 return -1;
1111
1112             default:
1113                 wxFAIL_MSG(_("invalid message box return value"));
1114         }
1115
1116         if ( bAppend ) {
1117             bOk = file.Open(filename, wxFile::write_append);
1118         }
1119         else {
1120             bOk = file.Create(filename, true /* overwrite */);
1121         }
1122     }
1123     else {
1124         bOk = file.Create(filename);
1125     }
1126
1127     if ( pFilename )
1128         *pFilename = filename;
1129
1130     return bOk;
1131 }
1132
1133 #endif // wxUSE_FILE
1134
1135 #endif // !(wxUSE_LOGGUI || wxUSE_LOGWINDOW)
1136
1137 #if wxUSE_LOG && wxUSE_TEXTCTRL
1138
1139 // ----------------------------------------------------------------------------
1140 // wxLogTextCtrl implementation
1141 // ----------------------------------------------------------------------------
1142
1143 wxLogTextCtrl::wxLogTextCtrl(wxTextCtrl *pTextCtrl)
1144 {
1145     m_pTextCtrl = pTextCtrl;
1146 }
1147
1148 void wxLogTextCtrl::DoLogString(const wxChar *szString, time_t WXUNUSED(t))
1149 {
1150     wxString msg;
1151     TimeStamp(&msg);
1152
1153     msg << szString << wxT('\n');
1154     m_pTextCtrl->AppendText(msg);
1155 }
1156
1157 #endif // wxUSE_LOG && wxUSE_TEXTCTRL