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
  50 #ifdef  __WXMSW__
  51     // for OutputDebugString()
  52     #include  "wx/msw/private.h"
  53 #endif // Windows
  54
  55 #ifdef  __WXPM__
  56     #include <time.h>
  57 #endif
  58
  59 #if wxUSE_LOG_DIALOG
  60     #include "wx/listctrl.h"
  61     #include "wx/imaglist.h"
  62     #include "wx/image.h"
  63 #endif // wxUSE_LOG_DIALOG/!wxUSE_LOG_DIALOG
  64
  65 #if defined(__MWERKS__) && wxUSE_UNICODE
  66     #include <wtime.h>
  67 #endif
  68
  69 #include "wx/datetime.h"
  70
  71 // the suffix we add to the button to show that the dialog can be expanded
  72 #define EXPAND_SUFFIX _T(" >>")
  73
  74 // ----------------------------------------------------------------------------
  75 // private classes
  76 // ----------------------------------------------------------------------------
  77
  78 #if wxUSE_LOG_DIALOG
  79
  80 // this function is a wrapper around strftime(3)
  81 // allows to exclude the usage of wxDateTime
  82 static wxString TimeStamp(const wxChar *format, time_t t)
  83 {
  84 #if wxUSE_DATETIME
  85     wxChar buf[4096];
  86     struct tm tm;
  87     if ( !wxStrftime(buf, WXSIZEOF(buf), format, wxLocaltime_r(&t, &tm)) )
  88     {
  89         // buffer is too small?
  90         wxFAIL_MSG(_T("strftime() failed"));
  91     }
  92     return wxString(buf);
  93 #else // !wxUSE_DATETIME
  94     return wxEmptyString;
  95 #endif // wxUSE_DATETIME/!wxUSE_DATETIME
  96 }
  97
  98
  99 class wxLogDialog : public wxDialog
 100 {
 101 public:
 102     wxLogDialog(wxWindow *parent,
 103                 const wxArrayString& messages,
 104                 const wxArrayInt& severity,
 105                 const wxArrayLong& timess,
 106                 const wxString& caption,
 107                 long style);
 108     virtual ~wxLogDialog();
 109
 110     // event handlers
 111     void OnOk(wxCommandEvent& event);
 112     void OnDetails(wxCommandEvent& event);
 113 #if wxUSE_FILE
 114     void OnSave(wxCommandEvent& event);
 115 #endif // wxUSE_FILE
 116     void OnListSelect(wxListEvent& event);
 117
 118 private:
 119     // create controls needed for the details display
 120     void CreateDetailsControls();
 121
 122     // the data for the listctrl
 123     wxArrayString m_messages;
 124     wxArrayInt m_severity;
 125     wxArrayLong m_times;
 126
 127     // the "toggle" button and its state
 128 #ifndef __SMARTPHONE__
 129     wxButton *m_btnDetails;
 130 #endif
 131     bool      m_showingDetails;
 132
 133     // the controls which are not shown initially (but only when details
 134     // button is pressed)
 135     wxListCtrl *m_listctrl;
 136 #ifndef __SMARTPHONE__
 137 #if wxUSE_STATLINE
 138     wxStaticLine *m_statline;
 139 #endif // wxUSE_STATLINE
 140 #if wxUSE_FILE
 141     wxButton *m_btnSave;
 142 #endif // wxUSE_FILE
 143 #endif // __SMARTPHONE__
 144
 145     // the translated "Details" string
 146     static wxString ms_details;
 147
 148     DECLARE_EVENT_TABLE()
 149     DECLARE_NO_COPY_CLASS(wxLogDialog)
 150 };
 151
 152 BEGIN_EVENT_TABLE(wxLogDialog, wxDialog)
 153     EVT_BUTTON(wxID_OK, wxLogDialog::OnOk)
 154     EVT_BUTTON(wxID_MORE,   wxLogDialog::OnDetails)
 155 #if wxUSE_FILE
 156     EVT_BUTTON(wxID_SAVE,   wxLogDialog::OnSave)
 157 #endif // wxUSE_FILE
 158     EVT_LIST_ITEM_SELECTED(wxID_ANY, wxLogDialog::OnListSelect)
 159 END_EVENT_TABLE()
 160
 161 #endif // wxUSE_LOG_DIALOG
 162
 163 // ----------------------------------------------------------------------------
 164 // private functions
 165 // ----------------------------------------------------------------------------
 166
 167 #if wxUSE_FILE && wxUSE_FILEDLG
 168
 169 // pass an uninitialized file object, the function will ask the user for the
 170 // filename and try to open it, returns true on success (file was opened),
 171 // false if file couldn't be opened/created and -1 if the file selection
 172 // dialog was cancelled
 173 static int OpenLogFile(wxFile& file, wxString *filename = NULL, wxWindow *parent = NULL);
 174
 175 #endif // wxUSE_FILE
 176
 177 // ----------------------------------------------------------------------------
 178 // global variables
 179 // ----------------------------------------------------------------------------
 180
 181 // we use a global variable to store the frame pointer for wxLogStatus - bad,
 182 // but it's the easiest way
 183 static wxFrame *gs_pFrame = NULL; // FIXME MT-unsafe
 184
 185 // ============================================================================
 186 // implementation
 187 // ============================================================================
 188
 189 // ----------------------------------------------------------------------------
 190 // global functions
 191 // ----------------------------------------------------------------------------
 192
 193 // accepts an additional argument which tells to which frame the output should
 194 // be directed
 195 void wxVLogStatus(wxFrame *pFrame, const wxChar *szFormat, va_list argptr)
 196 {
 197   wxString msg;
 198
 199   wxLog *pLog = wxLog::GetActiveTarget();
 200   if ( pLog != NULL ) {
 201     msg.PrintfV(szFormat, argptr);
 202
 203     wxASSERT( gs_pFrame == NULL ); // should be reset!
 204     gs_pFrame = pFrame;
 205 #ifdef __WXWINCE__
 206     wxLog::OnLog(wxLOG_Status, msg, 0);
 207 #else
 208     wxLog::OnLog(wxLOG_Status, msg, time(NULL));
 209 #endif
 210     gs_pFrame = (wxFrame *) NULL;
 211   }
 212 }
 213
 214 void wxDoLogStatus(wxFrame *pFrame, const wxChar *szFormat, ...)
 215 {
 216     va_list argptr;
 217     va_start(argptr, szFormat);
 218     wxVLogStatus(pFrame, szFormat, argptr);
 219     va_end(argptr);
 220 }
 221
 222 // ----------------------------------------------------------------------------
 223 // wxLogGui implementation (FIXME MT-unsafe)
 224 // ----------------------------------------------------------------------------
 225
 226 #if wxUSE_LOGGUI
 227
 228 wxLogGui::wxLogGui()
 229 {
 230     Clear();
 231 }
 232
 233 void wxLogGui::Clear()
 234 {
 235     m_bErrors =
 236     m_bWarnings =
 237     m_bHasMessages = false;
 238
 239     m_aMessages.Empty();
 240     m_aSeverity.Empty();
 241     m_aTimes.Empty();
 242 }
 243
 244 void wxLogGui::Flush()
 245 {
 246     if ( !m_bHasMessages )
 247         return;
 248
 249     // do it right now to block any new calls to Flush() while we're here
 250     m_bHasMessages = false;
 251
 252     unsigned repeatCount = 0;
 253     if ( wxLog::GetRepetitionCounting() )
 254     {
 255         repeatCount = wxLog::DoLogNumberOfRepeats();
 256     }
 257
 258     wxString appName = wxTheApp->GetAppName();
 259     if ( !appName.empty() )
 260         appName[0u] = (wxChar)wxToupper(appName[0u]);
 261
 262     long style;
 263     wxString titleFormat;
 264     if ( m_bErrors ) {
 265         titleFormat = _("%s Error");
 266         style = wxICON_STOP;
 267     }
 268     else if ( m_bWarnings ) {
 269         titleFormat = _("%s Warning");
 270         style = wxICON_EXCLAMATION;
 271     }
 272     else {
 273         titleFormat = _("%s Information");
 274         style = wxICON_INFORMATION;
 275     }
 276
 277     wxString title;
 278     title.Printf(titleFormat, appName.c_str());
 279
 280     size_t nMsgCount = m_aMessages.Count();
 281
 282     // avoid showing other log dialogs until we're done with the dialog we're
 283     // showing right now: nested modal dialogs make for really bad UI!
 284     Suspend();
 285
 286     wxString str;
 287     if ( nMsgCount == 1 )
 288     {
 289         str = m_aMessages[0];
 290     }
 291     else // more than one message
 292     {
 293 #if wxUSE_LOG_DIALOG
 294
 295         if ( repeatCount > 0 )
 296             m_aMessages[nMsgCount-1] += wxString::Format(wxT(" (%s)"), m_aMessages[nMsgCount-2].c_str());
 297         wxLogDialog dlg(NULL,
 298                         m_aMessages, m_aSeverity, m_aTimes,
 299                         title, style);
 300
 301         // clear the message list before showing the dialog because while it's
 302         // shown some new messages may appear
 303         Clear();
 304
 305         (void)dlg.ShowModal();
 306 #else // !wxUSE_LOG_DIALOG
 307         // concatenate all strings (but not too many to not overfill the msg box)
 308         size_t nLines = 0;
 309
 310         // start from the most recent message
 311         for ( size_t n = nMsgCount; n > 0; n-- ) {
 312             // for Windows strings longer than this value are wrapped (NT 4.0)
 313             const size_t nMsgLineWidth = 156;
 314
 315             nLines += (m_aMessages[n - 1].Len() + nMsgLineWidth - 1) / nMsgLineWidth;
 316
 317             if ( nLines > 25 )  // don't put too many lines in message box
 318                 break;
 319
 320             str << m_aMessages[n - 1] << wxT("\n");
 321         }
 322 #endif // wxUSE_LOG_DIALOG/!wxUSE_LOG_DIALOG
 323     }
 324
 325     // this catches both cases of 1 message with wxUSE_LOG_DIALOG and any
 326     // situation without it
 327     if ( !str.empty() )
 328     {
 329         wxMessageBox(str, title, wxOK | style);
 330
 331         // no undisplayed messages whatsoever
 332         Clear();
 333     }
 334
 335     // allow flushing the logs again
 336     Resume();
 337 }
 338
 339 // log all kinds of messages
 340 void wxLogGui::DoLog(wxLogLevel level, const wxChar *szString, time_t t)
 341 {
 342     switch ( level ) {
 343         case wxLOG_Info:
 344             if ( GetVerbose() )
 345         case wxLOG_Message:
 346             {
 347                 m_aMessages.Add(szString);
 348                 m_aSeverity.Add(wxLOG_Message);
 349                 m_aTimes.Add((long)t);
 350                 m_bHasMessages = true;
 351             }
 352             break;
 353
 354         case wxLOG_Status:
 355 #if wxUSE_STATUSBAR
 356             {
 357                 // find the top window and set it's status text if it has any
 358                 wxFrame *pFrame = gs_pFrame;
 359                 if ( pFrame == NULL ) {
 360                     wxWindow *pWin = wxTheApp->GetTopWindow();
 361                     if ( pWin != NULL && pWin->IsKindOf(CLASSINFO(wxFrame)) ) {
 362                         pFrame = (wxFrame *)pWin;
 363                     }
 364                 }
 365
 366                 if ( pFrame && pFrame->GetStatusBar() )
 367                     pFrame->SetStatusText(szString);
 368             }
 369 #endif // wxUSE_STATUSBAR
 370             break;
 371
 372         case wxLOG_Trace:
 373         case wxLOG_Debug:
 374             #ifdef __WXDEBUG__
 375             {
 376                 wxString str;
 377                 TimeStamp(&str);
 378                 str += szString;
 379
 380                 #if defined(__WXMSW__) && !defined(__WXMICROWIN__)
 381                     // don't prepend debug/trace here: it goes to the
 382                     // debug window anyhow
 383                     str += wxT("\r\n");
 384                     OutputDebugString(str);
 385                 #else
 386                     // send them to stderr
 387                     wxFprintf(stderr, wxT("[%s] %s\n"),
 388                               level == wxLOG_Trace ? wxT("Trace")
 389                                                    : wxT("Debug"),
 390                               str.c_str());
 391                     fflush(stderr);
 392                 #endif
 393             }
 394             #endif // __WXDEBUG__
 395
 396             break;
 397
 398         case wxLOG_FatalError:
 399             // show this one immediately
 400             wxMessageBox(szString, _("Fatal error"), wxICON_HAND);
 401             wxExit();
 402             break;
 403
 404         case wxLOG_Error:
 405             if ( !m_bErrors ) {
 406 #if !wxUSE_LOG_DIALOG
 407                 // discard earlier informational messages if this is the 1st
 408                 // error because they might not make sense any more and showing
 409                 // them in a message box might be confusing
 410                 m_aMessages.Empty();
 411                 m_aSeverity.Empty();
 412                 m_aTimes.Empty();
 413 #endif // wxUSE_LOG_DIALOG
 414                 m_bErrors = true;
 415             }
 416             // fall through
 417
 418         case wxLOG_Warning:
 419             if ( !m_bErrors ) {
 420                 // for the warning we don't discard the info messages
 421                 m_bWarnings = true;
 422             }
 423
 424             m_aMessages.Add(szString);
 425             m_aSeverity.Add((int)level);
 426             m_aTimes.Add((long)t);
 427             m_bHasMessages = true;
 428             break;
 429     }
 430 }
 431
 432 #endif   // wxUSE_LOGGUI
 433
 434 // ----------------------------------------------------------------------------
 435 // wxLogWindow and wxLogFrame implementation
 436 // ----------------------------------------------------------------------------
 437
 438 #if wxUSE_LOGWINDOW
 439
 440 // log frame class
 441 // ---------------
 442 class wxLogFrame : public wxFrame
 443 {
 444 public:
 445     // ctor & dtor
 446     wxLogFrame(wxWindow *pParent, wxLogWindow *log, const wxChar *szTitle);
 447     virtual ~wxLogFrame();
 448
 449     // menu callbacks
 450     void OnClose(wxCommandEvent& event);
 451     void OnCloseWindow(wxCloseEvent& event);
 452 #if wxUSE_FILE
 453     void OnSave (wxCommandEvent& event);
 454 #endif // wxUSE_FILE
 455     void OnClear(wxCommandEvent& event);
 456
 457     // accessors
 458     wxTextCtrl *TextCtrl() const { return m_pTextCtrl; }
 459
 460 private:
 461     // use standard ids for our commands!
 462     enum
 463     {
 464         Menu_Close = wxID_CLOSE,
 465         Menu_Save  = wxID_SAVE,
 466         Menu_Clear = wxID_CLEAR
 467     };
 468
 469     // common part of OnClose() and OnCloseWindow()
 470     void DoClose();
 471
 472     wxTextCtrl  *m_pTextCtrl;
 473     wxLogWindow *m_log;
 474
 475     DECLARE_EVENT_TABLE()
 476     DECLARE_NO_COPY_CLASS(wxLogFrame)
 477 };
 478
 479 BEGIN_EVENT_TABLE(wxLogFrame, wxFrame)
 480     // wxLogWindow menu events
 481     EVT_MENU(Menu_Close, wxLogFrame::OnClose)
 482 #if wxUSE_FILE
 483     EVT_MENU(Menu_Save,  wxLogFrame::OnSave)
 484 #endif // wxUSE_FILE
 485     EVT_MENU(Menu_Clear, wxLogFrame::OnClear)
 486
 487     EVT_CLOSE(wxLogFrame::OnCloseWindow)
 488 END_EVENT_TABLE()
 489
 490 wxLogFrame::wxLogFrame(wxWindow *pParent, wxLogWindow *log, const wxChar *szTitle)
 491           : wxFrame(pParent, wxID_ANY, szTitle)
 492 {
 493     m_log = log;
 494
 495     m_pTextCtrl = new wxTextCtrl(this, wxID_ANY, wxEmptyString, wxDefaultPosition,
 496             wxDefaultSize,
 497             wxTE_MULTILINE  |
 498             wxHSCROLL       |
 499             // needed for Win32 to avoid 65Kb limit but it doesn't work well
 500             // when using RichEdit 2.0 which we always do in the Unicode build
 501 #if !wxUSE_UNICODE
 502             wxTE_RICH       |
 503 #endif // !wxUSE_UNICODE
 504             wxTE_READONLY);
 505
 506 #if wxUSE_MENUS
 507     // create menu
 508     wxMenuBar *pMenuBar = new wxMenuBar;
 509     wxMenu *pMenu = new wxMenu;
 510 #if wxUSE_FILE
 511     pMenu->Append(Menu_Save,  _("&Save..."), _("Save log contents to file"));
 512 #endif // wxUSE_FILE
 513     pMenu->Append(Menu_Clear, _("C&lear"), _("Clear the log contents"));
 514     pMenu->AppendSeparator();
 515     pMenu->Append(Menu_Close, _("&Close"), _("Close this window"));
 516     pMenuBar->Append(pMenu, _("&Log"));
 517     SetMenuBar(pMenuBar);
 518 #endif // wxUSE_MENUS
 519
 520 #if wxUSE_STATUSBAR
 521     // status bar for menu prompts
 522     CreateStatusBar();
 523 #endif // wxUSE_STATUSBAR
 524
 525     m_log->OnFrameCreate(this);
 526 }
 527
 528 void wxLogFrame::DoClose()
 529 {
 530     if ( m_log->OnFrameClose(this) )
 531     {
 532         // instead of closing just hide the window to be able to Show() it
 533         // later
 534         Show(false);
 535     }
 536 }
 537
 538 void wxLogFrame::OnClose(wxCommandEvent& WXUNUSED(event))
 539 {
 540     DoClose();
 541 }
 542
 543 void wxLogFrame::OnCloseWindow(wxCloseEvent& WXUNUSED(event))
 544 {
 545     DoClose();
 546 }
 547
 548 #if wxUSE_FILE
 549 void wxLogFrame::OnSave(wxCommandEvent& WXUNUSED(event))
 550 {
 551 #if wxUSE_FILEDLG
 552     wxString filename;
 553     wxFile file;
 554     int rc = OpenLogFile(file, &filename, this);
 555     if ( rc == -1 )
 556     {
 557         // cancelled
 558         return;
 559     }
 560
 561     bool bOk = rc != 0;
 562
 563     // retrieve text and save it
 564     // -------------------------
 565     int nLines = m_pTextCtrl->GetNumberOfLines();
 566     for ( int nLine = 0; bOk && nLine < nLines; nLine++ ) {
 567         bOk = file.Write(m_pTextCtrl->GetLineText(nLine) +
 568                          wxTextFile::GetEOL());
 569     }
 570
 571     if ( bOk )
 572         bOk = file.Close();
 573
 574     if ( !bOk ) {
 575         wxLogError(_("Can't save log contents to file."));
 576     }
 577     else {
 578         wxLogStatus(this, _("Log saved to the file '%s'."), filename.c_str());
 579     }
 580 #endif
 581 }
 582 #endif // wxUSE_FILE
 583
 584 void wxLogFrame::OnClear(wxCommandEvent& WXUNUSED(event))
 585 {
 586     m_pTextCtrl->Clear();
 587 }
 588
 589 wxLogFrame::~wxLogFrame()
 590 {
 591     m_log->OnFrameDelete(this);
 592 }
 593
 594 // wxLogWindow
 595 // -----------
 596
 597 wxLogWindow::wxLogWindow(wxWindow *pParent,
 598                          const wxChar *szTitle,
 599                          bool bShow,
 600                          bool bDoPass)
 601 {
 602     PassMessages(bDoPass);
 603
 604     m_pLogFrame = new wxLogFrame(pParent, this, szTitle);
 605
 606     if ( bShow )
 607         m_pLogFrame->Show();
 608 }
 609
 610 void wxLogWindow::Show(bool bShow)
 611 {
 612     m_pLogFrame->Show(bShow);
 613 }
 614
 615 void wxLogWindow::DoLog(wxLogLevel level, const wxChar *szString, time_t t)
 616 {
 617     // first let the previous logger show it
 618     wxLogPassThrough::DoLog(level, szString, t);
 619
 620     if ( m_pLogFrame ) {
 621         switch ( level ) {
 622             case wxLOG_Status:
 623                 // by default, these messages are ignored by wxLog, so process
 624                 // them ourselves
 625                 if ( !wxIsEmpty(szString) )
 626                 {
 627                     wxString str;
 628                     str << _("Status: ") << szString;
 629                     DoLogString(str, t);
 630                 }
 631                 break;
 632
 633                 // don't put trace messages in the text window for 2 reasons:
 634                 // 1) there are too many of them
 635                 // 2) they may provoke other trace messages thus sending a program
 636                 //    into an infinite loop
 637             case wxLOG_Trace:
 638                 break;
 639
 640             default:
 641                 // and this will format it nicely and call our DoLogString()
 642                 wxLog::DoLog(level, szString, t);
 643         }
 644     }
 645 }
 646
 647 void wxLogWindow::DoLogString(const wxChar *szString, time_t WXUNUSED(t))
 648 {
 649     // put the text into our window
 650     wxTextCtrl *pText = m_pLogFrame->TextCtrl();
 651
 652     // remove selection (WriteText is in fact ReplaceSelection)
 653 #ifdef __WXMSW__
 654     wxTextPos nLen = pText->GetLastPosition();
 655     pText->SetSelection(nLen, nLen);
 656 #endif // Windows
 657
 658     wxString msg;
 659     TimeStamp(&msg);
 660     msg << szString << wxT('\n');
 661
 662     pText->AppendText(msg);
 663
 664     // TODO ensure that the line can be seen
 665 }
 666
 667 wxFrame *wxLogWindow::GetFrame() const
 668 {
 669     return m_pLogFrame;
 670 }
 671
 672 void wxLogWindow::OnFrameCreate(wxFrame * WXUNUSED(frame))
 673 {
 674 }
 675
 676 bool wxLogWindow::OnFrameClose(wxFrame * WXUNUSED(frame))
 677 {
 678     // allow to close
 679     return true;
 680 }
 681
 682 void wxLogWindow::OnFrameDelete(wxFrame * WXUNUSED(frame))
 683 {
 684     m_pLogFrame = (wxLogFrame *)NULL;
 685 }
 686
 687 wxLogWindow::~wxLogWindow()
 688 {
 689     // may be NULL if log frame already auto destroyed itself
 690     delete m_pLogFrame;
 691 }
 692
 693 #endif // wxUSE_LOGWINDOW
 694
 695 // ----------------------------------------------------------------------------
 696 // wxLogDialog
 697 // ----------------------------------------------------------------------------
 698
 699 #if wxUSE_LOG_DIALOG
 700
 701 #ifndef __SMARTPHONE__
 702 static const size_t MARGIN = 10;
 703 #else
 704 static const size_t MARGIN = 0;
 705 #endif
 706
 707 wxString wxLogDialog::ms_details;
 708
 709 wxLogDialog::wxLogDialog(wxWindow *parent,
 710                          const wxArrayString& messages,
 711                          const wxArrayInt& severity,
 712                          const wxArrayLong& times,
 713                          const wxString& caption,
 714                          long style)
 715            : wxDialog(parent, wxID_ANY, caption,
 716                       wxDefaultPosition, wxDefaultSize,
 717                       wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER)
 718 {
 719     if ( ms_details.empty() )
 720     {
 721         // ensure that we won't loop here if wxGetTranslation()
 722         // happens to pop up a Log message while translating this :-)
 723         ms_details = wxTRANSLATE("&Details");
 724         ms_details = wxGetTranslation(ms_details);
 725 #ifdef __SMARTPHONE__
 726         ms_details = wxStripMenuCodes(ms_details);
 727 #endif
 728     }
 729
 730     size_t count = messages.GetCount();
 731     m_messages.Alloc(count);
 732     m_severity.Alloc(count);
 733     m_times.Alloc(count);
 734
 735     for ( size_t n = 0; n < count; n++ )
 736     {
 737         wxString msg = messages[n];
 738         msg.Replace(wxT("\n"), wxT(" "));
 739         m_messages.Add(msg);
 740         m_severity.Add(severity[n]);
 741         m_times.Add(times[n]);
 742     }
 743
 744     m_showingDetails = false; // not initially
 745     m_listctrl = (wxListCtrl *)NULL;
 746
 747 #ifndef __SMARTPHONE__
 748
 749 #if wxUSE_STATLINE
 750     m_statline = (wxStaticLine *)NULL;
 751 #endif // wxUSE_STATLINE
 752
 753 #if wxUSE_FILE
 754     m_btnSave = (wxButton *)NULL;
 755 #endif // wxUSE_FILE
 756
 757 #endif // __SMARTPHONE__
 758
 759     bool isPda = (wxSystemSettings::GetScreenType() <= wxSYS_SCREEN_PDA);
 760
 761     // create the controls which are always shown and layout them: we use
 762     // sizers even though our window is not resizeable to calculate the size of
 763     // the dialog properly
 764     wxBoxSizer *sizerTop = new wxBoxSizer(wxVERTICAL);
 765 #ifndef __SMARTPHONE__
 766     wxBoxSizer *sizerButtons = new wxBoxSizer(isPda ? wxHORIZONTAL : wxVERTICAL);
 767 #endif
 768     wxBoxSizer *sizerAll = new wxBoxSizer(isPda ? wxVERTICAL : wxHORIZONTAL);
 769
 770 #ifdef __SMARTPHONE__
 771     SetLeftMenu(wxID_OK);
 772     SetRightMenu(wxID_MORE, ms_details + EXPAND_SUFFIX);
 773 #else
 774     wxButton *btnOk = new wxButton(this, wxID_OK);
 775     sizerButtons->Add(btnOk, 0, isPda ? wxCENTRE : wxCENTRE|wxBOTTOM, MARGIN/2);
 776     m_btnDetails = new wxButton(this, wxID_MORE, ms_details + EXPAND_SUFFIX);
 777     sizerButtons->Add(m_btnDetails, 0, isPda ? wxCENTRE|wxLEFT : wxCENTRE | wxTOP, MARGIN/2 - 1);
 778 #endif
 779
 780     wxBitmap bitmap;
 781     switch ( style & wxICON_MASK )
 782     {
 783         case wxICON_ERROR:
 784             bitmap = wxArtProvider::GetBitmap(wxART_ERROR, wxART_MESSAGE_BOX);
 785 #ifdef __WXPM__
 786             bitmap.SetId(wxICON_SMALL_ERROR);
 787 #endif
 788             break;
 789
 790         case wxICON_INFORMATION:
 791             bitmap = wxArtProvider::GetBitmap(wxART_INFORMATION, wxART_MESSAGE_BOX);
 792 #ifdef __WXPM__
 793             bitmap.SetId(wxICON_SMALL_INFO);
 794 #endif
 795             break;
 796
 797         case wxICON_WARNING:
 798             bitmap = wxArtProvider::GetBitmap(wxART_WARNING, wxART_MESSAGE_BOX);
 799 #ifdef __WXPM__
 800             bitmap.SetId(wxICON_SMALL_WARNING);
 801 #endif
 802             break;
 803
 804         default:
 805             wxFAIL_MSG(_T("incorrect log style"));
 806     }
 807
 808     if (!isPda)
 809         sizerAll->Add(new wxStaticBitmap(this, wxID_ANY, bitmap), 0,
 810                   wxALIGN_CENTRE_VERTICAL);
 811
 812     const wxString& message = messages.Last();
 813     sizerAll->Add(CreateTextSizer(message), 1,
 814                   wxALIGN_CENTRE_VERTICAL | wxLEFT | wxRIGHT, MARGIN);
 815 #ifndef __SMARTPHONE__
 816     sizerAll->Add(sizerButtons, 0, isPda ? wxCENTRE|wxTOP|wxBOTTOM : (wxALIGN_RIGHT | wxLEFT), MARGIN);
 817 #endif
 818
 819     sizerTop->Add(sizerAll, 0, wxALL | wxEXPAND, MARGIN);
 820
 821     SetSizer(sizerTop);
 822
 823     // see comments in OnDetails()
 824     //
 825     // Note: Doing this, this way, triggered a nasty bug in
 826     //       wxTopLevelWindowGTK::GtkOnSize which took -1 literally once
 827     //       either of maxWidth or maxHeight was set.  This symptom has been
 828     //       fixed there, but it is a problem that remains as long as we allow
 829     //       unchecked access to the internal size members.  We really need to
 830     //       encapuslate window sizes more cleanly and make it clear when -1 will
 831     //       be substituted and when it will not.
 832
 833     wxSize size = sizerTop->Fit(this);
 834     m_maxHeight = size.y;
 835     SetSizeHints(size.x, size.y, m_maxWidth, m_maxHeight);
 836
 837 #ifndef __SMARTPHONE__
 838     btnOk->SetFocus();
 839 #endif
 840
 841     Centre();
 842
 843     if (isPda)
 844     {
 845         // Move up the screen so that when we expand the dialog,
 846         // there's enough space.
 847         Move(wxPoint(GetPosition().x, GetPosition().y / 2));
 848     }
 849 }
 850
 851 void wxLogDialog::CreateDetailsControls()
 852 {
 853 #ifndef __SMARTPHONE__
 854     // create the save button and separator line if possible
 855 #if wxUSE_FILE
 856     m_btnSave = new wxButton(this, wxID_SAVE);
 857 #endif // wxUSE_FILE
 858
 859 #if wxUSE_STATLINE
 860     m_statline = new wxStaticLine(this, wxID_ANY);
 861 #endif // wxUSE_STATLINE
 862
 863 #endif // __SMARTPHONE__
 864
 865     // create the list ctrl now
 866     m_listctrl = new wxListCtrl(this, wxID_ANY,
 867                                 wxDefaultPosition, wxDefaultSize,
 868                                 wxSUNKEN_BORDER |
 869                                 wxLC_REPORT |
 870                                 wxLC_NO_HEADER |
 871                                 wxLC_SINGLE_SEL);
 872 #ifdef __WXWINCE__
 873     // This maks a big aesthetic difference on WinCE but I
 874     // don't want to risk problems on other platforms
 875     m_listctrl->Hide();
 876 #endif
 877
 878     // no need to translate these strings as they're not shown to the
 879     // user anyhow (we use wxLC_NO_HEADER style)
 880     m_listctrl->InsertColumn(0, _T("Message"));
 881     m_listctrl->InsertColumn(1, _T("Time"));
 882
 883     // prepare the imagelist
 884     static const int ICON_SIZE = 16;
 885     wxImageList *imageList = new wxImageList(ICON_SIZE, ICON_SIZE);
 886
 887     // order should be the same as in the switch below!
 888     static const wxChar* icons[] =
 889     {
 890         wxART_ERROR,
 891         wxART_WARNING,
 892         wxART_INFORMATION
 893     };
 894
 895     bool loadedIcons = true;
 896
 897     for ( size_t icon = 0; icon < WXSIZEOF(icons); icon++ )
 898     {
 899         wxBitmap bmp = wxArtProvider::GetBitmap(icons[icon], wxART_MESSAGE_BOX,
 900                                                 wxSize(ICON_SIZE, ICON_SIZE));
 901
 902         // This may very well fail if there are insufficient colours available.
 903         // Degrade gracefully.
 904         if ( !bmp.Ok() )
 905         {
 906             loadedIcons = false;
 907
 908             break;
 909         }
 910
 911         imageList->Add(bmp);
 912     }
 913
 914     m_listctrl->SetImageList(imageList, wxIMAGE_LIST_SMALL);
 915
 916     // and fill it
 917     wxString fmt = wxLog::GetTimestamp();
 918     if ( !fmt )
 919     {
 920         // default format
 921         fmt = _T("%c");
 922     }
 923
 924     size_t count = m_messages.GetCount();
 925     for ( size_t n = 0; n < count; n++ )
 926     {
 927         int image;
 928
 929         if ( loadedIcons )
 930         {
 931             switch ( m_severity[n] )
 932             {
 933                 case wxLOG_Error:
 934                     image = 0;
 935                     break;
 936
 937                 case wxLOG_Warning:
 938                     image = 1;
 939                     break;
 940
 941                 default:
 942                     image = 2;
 943             }
 944         }
 945         else // failed to load images
 946         {
 947             image = -1;
 948         }
 949
 950         m_listctrl->InsertItem(n, m_messages[n], image);
 951         m_listctrl->SetItem(n, 1, TimeStamp(fmt, (time_t)m_times[n]));
 952     }
 953
 954     // let the columns size themselves
 955     m_listctrl->SetColumnWidth(0, wxLIST_AUTOSIZE);
 956     m_listctrl->SetColumnWidth(1, wxLIST_AUTOSIZE);
 957
 958     // calculate an approximately nice height for the listctrl
 959     int height = GetCharHeight()*(count + 4);
 960
 961     // but check that the dialog won't fall fown from the screen
 962     //
 963     // we use GetMinHeight() to get the height of the dialog part without the
 964     // details and we consider that the "Save" button below and the separator
 965     // line (and the margins around it) take about as much, hence double it
 966     int heightMax = wxGetDisplaySize().y - GetPosition().y - 2*GetMinHeight();
 967
 968     // we should leave a margin
 969     heightMax *= 9;
 970     heightMax /= 10;
 971
 972     m_listctrl->SetSize(wxDefaultCoord, wxMin(height, heightMax));
 973 }
 974
 975 void wxLogDialog::OnListSelect(wxListEvent& event)
 976 {
 977     // we can't just disable the control because this looks ugly under Windows
 978     // (wrong bg colour, no scrolling...), but we still want to disable
 979     // selecting items - it makes no sense here
 980     m_listctrl->SetItemState(event.GetIndex(), 0, wxLIST_STATE_SELECTED);
 981 }
 982
 983 void wxLogDialog::OnOk(wxCommandEvent& WXUNUSED(event))
 984 {
 985     EndModal(wxID_OK);
 986 }
 987
 988 #if wxUSE_FILE
 989
 990 void wxLogDialog::OnSave(wxCommandEvent& WXUNUSED(event))
 991 {
 992 #if wxUSE_FILEDLG
 993     wxFile file;
 994     int rc = OpenLogFile(file, NULL, this);
 995     if ( rc == -1 )
 996     {
 997         // cancelled
 998         return;
 999     }
1000
1001     bool ok = rc != 0;
1002
1003     wxString fmt = wxLog::GetTimestamp();
1004     if ( !fmt )
1005     {
1006         // default format
1007         fmt = _T("%c");
1008     }
1009
1010     size_t count = m_messages.GetCount();
1011     for ( size_t n = 0; ok && (n < count); n++ )
1012     {
1013         wxString line;
1014         line << TimeStamp(fmt, (time_t)m_times[n])
1015              << _T(": ")
1016              << m_messages[n]
1017              << wxTextFile::GetEOL();
1018
1019         ok = file.Write(line);
1020     }
1021
1022     if ( ok )
1023         ok = file.Close();
1024
1025     if ( !ok )
1026         wxLogError(_("Can't save log contents to file."));
1027 #endif // wxUSE_FILEDLG
1028 }
1029
1030 #endif // wxUSE_FILE
1031
1032 void wxLogDialog::OnDetails(wxCommandEvent& WXUNUSED(event))
1033 {
1034     wxSizer *sizer = GetSizer();
1035
1036     if ( m_showingDetails )
1037     {
1038 #ifdef __SMARTPHONE__
1039         SetRightMenu(wxID_MORE, ms_details + EXPAND_SUFFIX);
1040 #else
1041         m_btnDetails->SetLabel(ms_details + EXPAND_SUFFIX);
1042 #endif
1043
1044         sizer->Detach( m_listctrl );
1045
1046 #ifndef __SMARTPHONE__
1047
1048 #if wxUSE_STATLINE
1049         sizer->Detach( m_statline );
1050 #endif // wxUSE_STATLINE
1051
1052 #if wxUSE_FILE
1053         sizer->Detach( m_btnSave );
1054 #endif // wxUSE_FILE
1055
1056 #endif // __SMARTPHONE__
1057     }
1058     else // show details now
1059     {
1060 #ifdef __SMARTPHONE__
1061         SetRightMenu(wxID_MORE, wxString(_T("<< ")) + ms_details);
1062 #else
1063         m_btnDetails->SetLabel(wxString(_T("<< ")) + ms_details);
1064 #endif
1065
1066         if ( !m_listctrl )
1067         {
1068             CreateDetailsControls();
1069         }
1070
1071 #if wxUSE_STATLINE && !defined(__SMARTPHONE__)
1072         bool isPda = (wxSystemSettings::GetScreenType() <= wxSYS_SCREEN_PDA);
1073         if (!isPda)
1074             sizer->Add(m_statline, 0, wxEXPAND | (wxALL & ~wxTOP), MARGIN);
1075 #endif // wxUSE_STATLINE
1076
1077         sizer->Add(m_listctrl, 1, wxEXPAND | (wxALL & ~wxTOP), MARGIN);
1078
1079         // VZ: this doesn't work as this becomes the initial (and not only
1080         //     minimal) listctrl height as well - why?
1081 #if 0
1082         // allow the user to make the dialog shorter than its initial height -
1083         // without this it wouldn't work as the list ctrl would have been
1084         // incompressible
1085         sizer->SetItemMinSize(m_listctrl, 100, 3*GetCharHeight());
1086 #endif // 0
1087
1088 #if wxUSE_FILE && !defined(__SMARTPHONE__)
1089         sizer->Add(m_btnSave, 0, wxALIGN_RIGHT | (wxALL & ~wxTOP), MARGIN);
1090 #endif // wxUSE_FILE
1091     }
1092
1093     m_showingDetails = !m_showingDetails;
1094
1095     // in any case, our size changed - relayout everything and set new hints
1096     // ---------------------------------------------------------------------
1097
1098     // we have to reset min size constraints or Fit() would never reduce the
1099     // dialog size when collapsing it and we have to reset max constraint
1100     // because it wouldn't expand it otherwise
1101
1102     m_minHeight =
1103     m_maxHeight = -1;
1104
1105     // wxSizer::FitSize() is private, otherwise we might use it directly...
1106     wxSize sizeTotal = GetSize(),
1107            sizeClient = GetClientSize();
1108
1109     wxSize size = sizer->GetMinSize();
1110     size.x += sizeTotal.x - sizeClient.x;
1111     size.y += sizeTotal.y - sizeClient.y;
1112
1113     // we don't want to allow expanding the dialog in vertical direction as
1114     // this would show the "hidden" details but we can resize the dialog
1115     // vertically while the details are shown
1116     if ( !m_showingDetails )
1117         m_maxHeight = size.y;
1118
1119     SetSizeHints(size.x, size.y, m_maxWidth, m_maxHeight);
1120
1121 #ifdef __WXWINCE__
1122     if (m_showingDetails)
1123         m_listctrl->Show();
1124 #endif
1125
1126     // don't change the width when expanding/collapsing
1127     SetSize(wxDefaultCoord, size.y);
1128
1129 #ifdef __WXGTK__
1130     // VS: this is necessary in order to force frame redraw under
1131     // WindowMaker or fvwm2 (and probably other broken WMs).
1132     // Otherwise, detailed list wouldn't be displayed.
1133     Show();
1134 #endif // wxGTK
1135 }
1136
1137 wxLogDialog::~wxLogDialog()
1138 {
1139     if ( m_listctrl )
1140     {
1141         delete m_listctrl->GetImageList(wxIMAGE_LIST_SMALL);
1142     }
1143 }
1144
1145 #endif // wxUSE_LOG_DIALOG
1146
1147 #if wxUSE_FILE && wxUSE_FILEDLG
1148
1149 // pass an uninitialized file object, the function will ask the user for the
1150 // filename and try to open it, returns true on success (file was opened),
1151 // false if file couldn't be opened/created and -1 if the file selection
1152 // dialog was cancelled
1153 static int OpenLogFile(wxFile& file, wxString *pFilename, wxWindow *parent)
1154 {
1155     // get the file name
1156     // -----------------
1157     wxString filename = wxSaveFileSelector(wxT("log"), wxT("txt"), wxT("log.txt"), parent);
1158     if ( !filename ) {
1159         // cancelled
1160         return -1;
1161     }
1162
1163     // open file
1164     // ---------
1165     bool bOk wxDUMMY_INITIALIZE(false);
1166     if ( wxFile::Exists(filename) ) {
1167         bool bAppend = false;
1168         wxString strMsg;
1169         strMsg.Printf(_("Append log to file '%s' (choosing [No] will overwrite it)?"),
1170                       filename.c_str());
1171         switch ( wxMessageBox(strMsg, _("Question"),
1172                               wxICON_QUESTION | wxYES_NO | wxCANCEL) ) {
1173             case wxYES:
1174                 bAppend = true;
1175                 break;
1176
1177             case wxNO:
1178                 bAppend = false;
1179                 break;
1180
1181             case wxCANCEL:
1182                 return -1;
1183
1184             default:
1185                 wxFAIL_MSG(_("invalid message box return value"));
1186         }
1187
1188         if ( bAppend ) {
1189             bOk = file.Open(filename, wxFile::write_append);
1190         }
1191         else {
1192             bOk = file.Create(filename, true /* overwrite */);
1193         }
1194     }
1195     else {
1196         bOk = file.Create(filename);
1197     }
1198
1199     if ( pFilename )
1200         *pFilename = filename;
1201
1202     return bOk;
1203 }
1204
1205 #endif // wxUSE_FILE
1206
1207 #endif // !(wxUSE_LOGGUI || wxUSE_LOGWINDOW)
1208
1209 #if wxUSE_LOG && wxUSE_TEXTCTRL
1210
1211 // ----------------------------------------------------------------------------
1212 // wxLogTextCtrl implementation
1213 // ----------------------------------------------------------------------------
1214
1215 wxLogTextCtrl::wxLogTextCtrl(wxTextCtrl *pTextCtrl)
1216 {
1217     m_pTextCtrl = pTextCtrl;
1218 }
1219
1220 void wxLogTextCtrl::DoLogString(const wxChar *szString, time_t WXUNUSED(t))
1221 {
1222     wxString msg;
1223     TimeStamp(&msg);
1224
1225     msg << szString << wxT('\n');
1226     m_pTextCtrl->AppendText(msg);
1227 }
1228
1229 #endif // wxUSE_LOG && wxUSE_TEXTCTRL