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     if ( !m_pLogFrame )
 614         return;
 615
 616     // don't put trace messages in the text window for 2 reasons:
 617     // 1) there are too many of them
 618     // 2) they may provoke other trace messages (e.g. wxMSW code uses
 619     //    wxLogTrace to log Windows messages and adding text to the control
 620     //    sends more of them) thus sending a program into an infinite loop
 621     if ( level == wxLOG_Trace )
 622         return;
 623
 624     m_pLogFrame->ShowLogMessage(msg);
 625 }
 626
 627 wxFrame *wxLogWindow::GetFrame() const
 628 {
 629     return m_pLogFrame;
 630 }
 631
 632 void wxLogWindow::OnFrameCreate(wxFrame * WXUNUSED(frame))
 633 {
 634 }
 635
 636 bool wxLogWindow::OnFrameClose(wxFrame * WXUNUSED(frame))
 637 {
 638     // allow to close
 639     return true;
 640 }
 641
 642 void wxLogWindow::OnFrameDelete(wxFrame * WXUNUSED(frame))
 643 {
 644     m_pLogFrame = NULL;
 645 }
 646
 647 wxLogWindow::~wxLogWindow()
 648 {
 649     // may be NULL if log frame already auto destroyed itself
 650     delete m_pLogFrame;
 651 }
 652
 653 #endif // wxUSE_LOGWINDOW
 654
 655 // ----------------------------------------------------------------------------
 656 // wxLogDialog
 657 // ----------------------------------------------------------------------------
 658
 659 #if wxUSE_LOG_DIALOG
 660
 661 wxString wxLogDialog::ms_details;
 662 size_t wxLogDialog::ms_maxLength = 0;
 663
 664 wxLogDialog::wxLogDialog(wxWindow *parent,
 665                          const wxArrayString& messages,
 666                          const wxArrayInt& severity,
 667                          const wxArrayLong& times,
 668                          const wxString& caption,
 669                          long style)
 670            : wxDialog(parent, wxID_ANY, caption,
 671                       wxDefaultPosition, wxDefaultSize,
 672                       wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER)
 673 {
 674     // init the static variables:
 675
 676     if ( ms_details.empty() )
 677     {
 678         // ensure that we won't loop here if wxGetTranslation()
 679         // happens to pop up a Log message while translating this :-)
 680         ms_details = wxTRANSLATE("&Details");
 681         ms_details = wxGetTranslation(ms_details);
 682 #ifdef __SMARTPHONE__
 683         ms_details = wxStripMenuCodes(ms_details);
 684 #endif
 685     }
 686
 687     if ( ms_maxLength == 0 )
 688     {
 689         ms_maxLength = (2 * wxGetDisplaySize().x/3) / GetCharWidth();
 690     }
 691
 692     size_t count = messages.GetCount();
 693     m_messages.Alloc(count);
 694     m_severity.Alloc(count);
 695     m_times.Alloc(count);
 696
 697     for ( size_t n = 0; n < count; n++ )
 698     {
 699         m_messages.Add(messages[n]);
 700         m_severity.Add(severity[n]);
 701         m_times.Add(times[n]);
 702     }
 703
 704     m_listctrl = NULL;
 705
 706     bool isPda = (wxSystemSettings::GetScreenType() <= wxSYS_SCREEN_PDA);
 707
 708     // create the controls which are always shown and layout them: we use
 709     // sizers even though our window is not resizeable to calculate the size of
 710     // the dialog properly
 711     wxBoxSizer *sizerTop = new wxBoxSizer(wxVERTICAL);
 712     wxBoxSizer *sizerAll = new wxBoxSizer(isPda ? wxVERTICAL : wxHORIZONTAL);
 713
 714     if (!isPda)
 715     {
 716         wxStaticBitmap *icon = new wxStaticBitmap
 717                                    (
 718                                     this,
 719                                     wxID_ANY,
 720                                     wxArtProvider::GetMessageBoxIcon(style)
 721                                    );
 722         sizerAll->Add(icon, wxSizerFlags().Centre());
 723     }
 724
 725     // create the text sizer with a minimal size so that we are sure it won't be too small
 726     wxString message = EllipsizeString(messages.Last());
 727     wxSizer *szText = CreateTextSizer(message);
 728     szText->SetMinSize(wxMin(300, wxGetDisplaySize().x / 3), -1);
 729
 730     sizerAll->Add(szText, wxSizerFlags(1).Centre().Border(wxLEFT | wxRIGHT));
 731
 732     wxButton *btnOk = new wxButton(this, wxID_OK);
 733     sizerAll->Add(btnOk, wxSizerFlags().Centre());
 734
 735     sizerTop->Add(sizerAll, wxSizerFlags().Expand().Border());
 736
 737
 738     // add the details pane
 739 #ifndef __SMARTPHONE__
 740     wxCollapsiblePane * const
 741         collpane = new wxCollapsiblePane(this, wxID_ANY, ms_details);
 742     sizerTop->Add(collpane, wxSizerFlags(1).Expand().Border());
 743
 744     wxWindow *win = collpane->GetPane();
 745     wxSizer * const paneSz = new wxBoxSizer(wxVERTICAL);
 746
 747     CreateDetailsControls(win);
 748
 749     paneSz->Add(m_listctrl, wxSizerFlags(1).Expand().Border(wxTOP));
 750
 751 #if wxUSE_CLIPBOARD || CAN_SAVE_FILES
 752     wxBoxSizer * const btnSizer = new wxBoxSizer(wxHORIZONTAL);
 753
 754     wxSizerFlags flagsBtn;
 755     flagsBtn.Border(wxLEFT);
 756
 757 #if wxUSE_CLIPBOARD
 758     btnSizer->Add(new wxButton(win, wxID_COPY), flagsBtn);
 759 #endif // wxUSE_CLIPBOARD
 760
 761 #if CAN_SAVE_FILES
 762     btnSizer->Add(new wxButton(win, wxID_SAVE), flagsBtn);
 763 #endif // CAN_SAVE_FILES
 764
 765     paneSz->Add(btnSizer, wxSizerFlags().Right().Border(wxTOP));
 766 #endif // wxUSE_CLIPBOARD || CAN_SAVE_FILES
 767
 768     win->SetSizer(paneSz);
 769     paneSz->SetSizeHints(win);
 770 #else // __SMARTPHONE__
 771     SetLeftMenu(wxID_OK);
 772     SetRightMenu(wxID_MORE, ms_details + EXPAND_SUFFIX);
 773 #endif // __SMARTPHONE__/!__SMARTPHONE__
 774
 775     SetSizerAndFit(sizerTop);
 776
 777     Centre();
 778
 779     if (isPda)
 780     {
 781         // Move up the screen so that when we expand the dialog,
 782         // there's enough space.
 783         Move(wxPoint(GetPosition().x, GetPosition().y / 2));
 784     }
 785 }
 786
 787 void wxLogDialog::CreateDetailsControls(wxWindow *parent)
 788 {
 789     wxString fmt = wxLog::GetTimestamp();
 790     bool hasTimeStamp = !fmt.IsEmpty();
 791
 792     // create the list ctrl now
 793     m_listctrl = new wxListCtrl(parent, wxID_ANY,
 794                                 wxDefaultPosition, wxDefaultSize,
 795                                 wxBORDER_SIMPLE |
 796                                 wxLC_REPORT |
 797                                 wxLC_NO_HEADER |
 798                                 wxLC_SINGLE_SEL);
 799 #ifdef __WXWINCE__
 800     // This makes a big aesthetic difference on WinCE but I
 801     // don't want to risk problems on other platforms
 802     m_listctrl->Hide();
 803 #endif
 804
 805     // no need to translate these strings as they're not shown to the
 806     // user anyhow (we use wxLC_NO_HEADER style)
 807     m_listctrl->InsertColumn(0, wxT("Message"));
 808
 809     if (hasTimeStamp)
 810         m_listctrl->InsertColumn(1, wxT("Time"));
 811
 812     // prepare the imagelist
 813     static const int ICON_SIZE = 16;
 814     wxImageList *imageList = new wxImageList(ICON_SIZE, ICON_SIZE);
 815
 816     // order should be the same as in the switch below!
 817     static const wxChar* const icons[] =
 818     {
 819         wxART_ERROR,
 820         wxART_WARNING,
 821         wxART_INFORMATION
 822     };
 823
 824     bool loadedIcons = true;
 825
 826     for ( size_t icon = 0; icon < WXSIZEOF(icons); icon++ )
 827     {
 828         wxBitmap bmp = wxArtProvider::GetBitmap(icons[icon], wxART_MESSAGE_BOX,
 829                                                 wxSize(ICON_SIZE, ICON_SIZE));
 830
 831         // This may very well fail if there are insufficient colours available.
 832         // Degrade gracefully.
 833         if ( !bmp.Ok() )
 834         {
 835             loadedIcons = false;
 836
 837             break;
 838         }
 839
 840         imageList->Add(bmp);
 841     }
 842
 843     m_listctrl->SetImageList(imageList, wxIMAGE_LIST_SMALL);
 844
 845     // fill the listctrl
 846     size_t count = m_messages.GetCount();
 847     for ( size_t n = 0; n < count; n++ )
 848     {
 849         int image;
 850
 851         if ( loadedIcons )
 852         {
 853             switch ( m_severity[n] )
 854             {
 855                 case wxLOG_Error:
 856                     image = 0;
 857                     break;
 858
 859                 case wxLOG_Warning:
 860                     image = 1;
 861                     break;
 862
 863                 default:
 864                     image = 2;
 865             }
 866         }
 867         else // failed to load images
 868         {
 869             image = -1;
 870         }
 871
 872         wxString msg = m_messages[n];
 873         msg.Replace(wxT("\n"), wxT(" "));
 874         msg = EllipsizeString(msg);
 875
 876         m_listctrl->InsertItem(n, msg, image);
 877
 878         if (hasTimeStamp)
 879             m_listctrl->SetItem(n, 1, TimeStamp(fmt, (time_t)m_times[n]));
 880     }
 881
 882     // let the columns size themselves
 883     m_listctrl->SetColumnWidth(0, wxLIST_AUTOSIZE);
 884     if (hasTimeStamp)
 885         m_listctrl->SetColumnWidth(1, wxLIST_AUTOSIZE);
 886
 887     // calculate an approximately nice height for the listctrl
 888     int height = GetCharHeight()*(count + 4);
 889
 890     // but check that the dialog won't fall fown from the screen
 891     //
 892     // we use GetMinHeight() to get the height of the dialog part without the
 893     // details and we consider that the "Save" button below and the separator
 894     // line (and the margins around it) take about as much, hence double it
 895     int heightMax = wxGetDisplaySize().y - GetPosition().y - 2*GetMinHeight();
 896
 897     // we should leave a margin
 898     heightMax *= 9;
 899     heightMax /= 10;
 900
 901     m_listctrl->SetSize(wxDefaultCoord, wxMin(height, heightMax));
 902 }
 903
 904 void wxLogDialog::OnListItemActivated(wxListEvent& event)
 905 {
 906     // show the activated item in a message box
 907     // This allow the user to correctly display the logs which are longer
 908     // than the listctrl and thus gets truncated or those which contains
 909     // newlines.
 910
 911     // NB: don't do:
 912     //    wxString str = m_listctrl->GetItemText(event.GetIndex());
 913     // as there's a 260 chars limit on the items inside a wxListCtrl in wxMSW.
 914     wxString str = m_messages[event.GetIndex()];
 915
 916     // wxMessageBox will nicely handle the '\n' in the string (if any)
 917     // and supports long strings
 918     wxMessageBox(str, wxT("Log message"), wxOK, this);
 919 }
 920
 921 void wxLogDialog::OnOk(wxCommandEvent& WXUNUSED(event))
 922 {
 923     EndModal(wxID_OK);
 924 }
 925
 926 #if CAN_SAVE_FILES || wxUSE_CLIPBOARD
 927
 928 wxString wxLogDialog::GetLogMessages() const
 929 {
 930     wxString fmt = wxLog::GetTimestamp();
 931     if ( fmt.empty() )
 932     {
 933         // use the default format
 934         fmt = "%c";
 935     }
 936
 937     const size_t count = m_messages.GetCount();
 938
 939     wxString text;
 940     text.reserve(count*m_messages[0].length());
 941     for ( size_t n = 0; n < count; n++ )
 942     {
 943         text << TimeStamp(fmt, (time_t)m_times[n])
 944              << ": "
 945              << m_messages[n]
 946              << wxTextFile::GetEOL();
 947     }
 948
 949     return text;
 950 }
 951
 952 #endif // CAN_SAVE_FILES || wxUSE_CLIPBOARD
 953
 954 #if wxUSE_CLIPBOARD
 955
 956 void wxLogDialog::OnCopy(wxCommandEvent& WXUNUSED(event))
 957 {
 958     wxClipboardLocker clip;
 959     if ( !clip ||
 960             !wxTheClipboard->AddData(new wxTextDataObject(GetLogMessages())) )
 961     {
 962         wxLogError(_("Failed to copy dialog contents to the clipboard."));
 963     }
 964 }
 965
 966 #endif // wxUSE_CLIPBOARD
 967
 968 #if CAN_SAVE_FILES
 969
 970 void wxLogDialog::OnSave(wxCommandEvent& WXUNUSED(event))
 971 {
 972     wxFile file;
 973     int rc = OpenLogFile(file, NULL, this);
 974     if ( rc == -1 )
 975     {
 976         // cancelled
 977         return;
 978     }
 979
 980     if ( !rc || !file.Write(GetLogMessages()) || !file.Close() )
 981     {
 982         wxLogError(_("Can't save log contents to file."));
 983     }
 984 }
 985
 986 #endif // CAN_SAVE_FILES
 987
 988 wxLogDialog::~wxLogDialog()
 989 {
 990     if ( m_listctrl )
 991     {
 992         delete m_listctrl->GetImageList(wxIMAGE_LIST_SMALL);
 993     }
 994 }
 995
 996 #endif // wxUSE_LOG_DIALOG
 997
 998 #if CAN_SAVE_FILES
 999
1000 // pass an uninitialized file object, the function will ask the user for the
1001 // filename and try to open it, returns true on success (file was opened),
1002 // false if file couldn't be opened/created and -1 if the file selection
1003 // dialog was cancelled
1004 static int OpenLogFile(wxFile& file, wxString *pFilename, wxWindow *parent)
1005 {
1006     // get the file name
1007     // -----------------
1008     wxString filename = wxSaveFileSelector(wxT("log"), wxT("txt"), wxT("log.txt"), parent);
1009     if ( !filename ) {
1010         // cancelled
1011         return -1;
1012     }
1013
1014     // open file
1015     // ---------
1016     bool bOk = true; // suppress warning about it being possible uninitialized
1017     if ( wxFile::Exists(filename) ) {
1018         bool bAppend = false;
1019         wxString strMsg;
1020         strMsg.Printf(_("Append log to file '%s' (choosing [No] will overwrite it)?"),
1021                       filename.c_str());
1022         switch ( wxMessageBox(strMsg, _("Question"),
1023                               wxICON_QUESTION | wxYES_NO | wxCANCEL) ) {
1024             case wxYES:
1025                 bAppend = true;
1026                 break;
1027
1028             case wxNO:
1029                 bAppend = false;
1030                 break;
1031
1032             case wxCANCEL:
1033                 return -1;
1034
1035             default:
1036                 wxFAIL_MSG(_("invalid message box return value"));
1037         }
1038
1039         if ( bAppend ) {
1040             bOk = file.Open(filename, wxFile::write_append);
1041         }
1042         else {
1043             bOk = file.Create(filename, true /* overwrite */);
1044         }
1045     }
1046     else {
1047         bOk = file.Create(filename);
1048     }
1049
1050     if ( pFilename )
1051         *pFilename = filename;
1052
1053     return bOk;
1054 }
1055
1056 #endif // CAN_SAVE_FILES
1057
1058 #endif // !(wxUSE_LOGGUI || wxUSE_LOGWINDOW)
1059
1060 #if wxUSE_LOG && wxUSE_TEXTCTRL
1061
1062 // ----------------------------------------------------------------------------
1063 // wxLogTextCtrl implementation
1064 // ----------------------------------------------------------------------------
1065
1066 wxLogTextCtrl::wxLogTextCtrl(wxTextCtrl *pTextCtrl)
1067 {
1068     m_pTextCtrl = pTextCtrl;
1069 }
1070
1071 void wxLogTextCtrl::DoLogText(const wxString& msg)
1072 {
1073     m_pTextCtrl->AppendText(msg + wxS('\n'));
1074 }
1075
1076 #endif // wxUSE_LOG && wxUSE_TEXTCTRL