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