-
-void wxLogGui::Flush()
-{
- if ( !m_bHasMessages )
- return;
-
- // do it right now to block any new calls to Flush() while we're here
- m_bHasMessages = FALSE;
-
- // @@@ ugly...
-
- // concatenate all strings (but not too many to not overfill the msg box)
- wxString str;
- size_t nLines = 0,
- nMsgCount = m_aMessages.Count();
-
- // start from the most recent message
- for ( size_t n = nMsgCount; n > 0; n-- ) {
- // for Windows strings longer than this value are wrapped (NT 4.0)
- const size_t nMsgLineWidth = 156;
-
- nLines += (m_aMessages[n - 1].Len() + nMsgLineWidth - 1) / nMsgLineWidth;
-
- if ( nLines > 25 ) // don't put too many lines in message box
- break;
-
- str << m_aMessages[n - 1] << "\n";
- }
-
- if ( m_bErrors ) {
- wxMessageBox(str, _("Error"), wxOK | wxICON_EXCLAMATION);
- }
- else {
- wxMessageBox(str, _("Information"), wxOK | wxICON_INFORMATION);
- }
-
- // no undisplayed messages whatsoever
- m_bErrors = FALSE;
- m_aMessages.Empty();
-}
-
-// the default behaviour is to discard all informational messages if there
-// are any errors/warnings.
-void wxLogGui::DoLog(wxLogLevel level, const char *szString)
-{
- switch ( level ) {
- case wxLOG_Info:
- if ( GetVerbose() )
- case wxLOG_Message:
- if ( !m_bErrors ) {
- m_aMessages.Add(szString);
- m_bHasMessages = TRUE;
- }
- break;
-
- case wxLOG_Status:
- {
- // find the top window and set it's status text if it has any
- wxFrame *pFrame = gs_pFrame;
- if ( pFrame == NULL ) {
- wxWindow *pWin = wxTheApp->GetTopWindow();
- if ( pWin != NULL && pWin->IsKindOf(CLASSINFO(wxFrame)) ) {
- pFrame = (wxFrame *)pWin;
- }
- }
-
- if ( pFrame != NULL )
- pFrame->SetStatusText(szString);
- }
- break;
-
- case wxLOG_Trace:
- case wxLOG_Debug:
- #ifdef __WXDEBUG__
- {
- wxString strTime = TimeStamp();
-
- #ifdef __WXMSW__
- // don't prepend debug/trace here: it goes to the debug window
- // anyhow, but do put a timestamp
- OutputDebugString(strTime + szString + "\n\r");
- #else
- // send them to stderr
- /*
- fprintf(stderr, "%s %s: %s\n",
- strTime.c_str(),
- level == wxLOG_Trace ? _("Trace") : _("Debug"),
- szString);
- */
- fprintf(stderr, "%s\n",
- szString);
- fflush(stderr);
- #endif
- }
- #endif
- break;
-
- case wxLOG_FatalError:
- // show this one immediately
- wxMessageBox(szString, _("Fatal error"), wxICON_HAND);
- break;
-
- case wxLOG_Error:
- case wxLOG_Warning:
- // discard earlier informational messages if this is the 1st error
- if ( !m_bErrors ) {
- m_aMessages.Empty();
- m_bHasMessages = TRUE;
- m_bErrors = TRUE;
- }
-
- m_aMessages.Add(szString);
- break;
-
- default:
- wxFAIL_MSG(_("unknown log level in wxLogGui::DoLog"));
- }
-}
-
-// ----------------------------------------------------------------------------
-// wxLogWindow and wxLogFrame implementation
-// ----------------------------------------------------------------------------
-
-// log frame class
-// ---------------
-class wxLogFrame : public wxFrame
-{
-public:
- // ctor & dtor
- wxLogFrame(wxFrame *pParent, wxLogWindow *log, const char *szTitle);
- virtual ~wxLogFrame();
-
- // menu callbacks
- void OnClose(wxCommandEvent& event);
- void OnCloseWindow(wxCloseEvent& event);
- void OnSave (wxCommandEvent& event);
- void OnClear(wxCommandEvent& event);
-
- void OnIdle(wxIdleEvent&);
-
- // accessors
- wxTextCtrl *TextCtrl() const { return m_pTextCtrl; }
-
-private:
- enum
- {
- Menu_Close = 100,
- Menu_Save,
- Menu_Clear
- };
-
- // instead of closing just hide the window to be able to Show() it later
- void DoClose() { Show(FALSE); }
-
- wxTextCtrl *m_pTextCtrl;
- wxLogWindow *m_log;
-
- DECLARE_EVENT_TABLE()
-};
-
-BEGIN_EVENT_TABLE(wxLogFrame, wxFrame)
- // wxLogWindow menu events
- EVT_MENU(Menu_Close, wxLogFrame::OnClose)
- EVT_MENU(Menu_Save, wxLogFrame::OnSave)
- EVT_MENU(Menu_Clear, wxLogFrame::OnClear)
-
- EVT_CLOSE(wxLogFrame::OnCloseWindow)
-END_EVENT_TABLE()
-
-wxLogFrame::wxLogFrame(wxFrame *pParent, wxLogWindow *log, const char *szTitle)
- : wxFrame(pParent, -1, szTitle)
-{
- m_log = log;
-
- // @@ kludge: wxSIMPLE_BORDER is simply to prevent wxWindows from creating
- // a rich edit control instead of a normal one we want in wxMSW
- m_pTextCtrl = new wxTextCtrl(this, -1, wxEmptyString, wxDefaultPosition,
- wxDefaultSize,
- //wxSIMPLE_BORDER |
- wxTE_MULTILINE |
- wxHSCROLL |
- wxTE_READONLY);
-
- // create menu
- wxMenuBar *pMenuBar = new wxMenuBar;
- wxMenu *pMenu = new wxMenu;
- pMenu->Append(Menu_Save, _("&Save..."), _("Save log contents to file"));
- pMenu->Append(Menu_Clear, _("C&lear"), _("Clear the log contents"));
- pMenu->AppendSeparator();
- pMenu->Append(Menu_Close, _("&Close"), _("Close this window"));
- pMenuBar->Append(pMenu, _("&Log"));
- SetMenuBar(pMenuBar);
-
- // status bar for menu prompts
- CreateStatusBar();
-
- m_log->OnFrameCreate(this);
-}
-
-void wxLogFrame::OnClose(wxCommandEvent& WXUNUSED(event))
-{
- DoClose();
-}
-
-void wxLogFrame::OnCloseWindow(wxCloseEvent& WXUNUSED(event))
-{
- DoClose();
-}
-
-void wxLogFrame::OnSave(wxCommandEvent& WXUNUSED(event))
-{
- // get the file name
- // -----------------
- const char *szFileName = wxSaveFileSelector("log", "txt", "log.txt");
- if ( szFileName == NULL ) {
- // cancelled
- return;
- }
-
- // open file
- // ---------
- wxFile file;
- bool bOk = FALSE;
- if ( wxFile::Exists(szFileName) ) {
- bool bAppend = FALSE;
- wxString strMsg;
- strMsg.Printf(_("Append log to file '%s' "
- "(choosing [No] will overwrite it)?"), szFileName);
- switch ( wxMessageBox(strMsg, _("Question"), wxYES_NO | wxCANCEL) ) {
- case wxYES:
- bAppend = TRUE;
- break;
-
- case wxNO:
- bAppend = FALSE;
- break;
-
- case wxCANCEL:
- return;
-
- default:
- wxFAIL_MSG(_("invalid message box return value"));
- }
-
- if ( bAppend ) {
- bOk = file.Open(szFileName, wxFile::write_append);
- }
- else {
- bOk = file.Create(szFileName, TRUE /* overwrite */);
- }
- }
- else {
- bOk = file.Create(szFileName);
- }
-
- // retrieve text and save it
- // -------------------------
- int nLines = m_pTextCtrl->GetNumberOfLines();
- for ( int nLine = 0; bOk && nLine < nLines; nLine++ ) {
- bOk = file.Write(m_pTextCtrl->GetLineText(nLine) + wxTextFile::GetEOL());
- }
-
- if ( bOk )
- bOk = file.Close();
-
- if ( !bOk ) {
- wxLogError(_("Can't save log contents to file."));
- }
- else {
- wxLogStatus(this, _("Log saved to the file '%s'."), szFileName);
- }
-}
-
-void wxLogFrame::OnClear(wxCommandEvent& WXUNUSED(event))
-{
- m_pTextCtrl->Clear();
-}
-
-wxLogFrame::~wxLogFrame()
-{
- m_log->OnFrameDelete(this);
-}
-
-// wxLogWindow
-// -----------
-wxLogWindow::wxLogWindow(wxFrame *pParent,
- const char *szTitle,
- bool bShow,
- bool bDoPass)
-{
- m_bPassMessages = bDoPass;
-
- m_pLogFrame = new wxLogFrame(pParent, this, szTitle);
- m_pOldLog = wxLog::SetActiveTarget(this);
-
- if ( bShow )
- m_pLogFrame->Show(TRUE);
-}
-
-void wxLogWindow::Show(bool bShow)
-{
- m_pLogFrame->Show(bShow);
-}
-
-void wxLogWindow::Flush()
-{
- if ( m_pOldLog != NULL )
- m_pOldLog->Flush();
-
- m_bHasMessages = FALSE;
-}
-
-void wxLogWindow::DoLog(wxLogLevel level, const char *szString)
-{
- // first let the previous logger show it
- if ( m_pOldLog != NULL && m_bPassMessages ) {
- // @@@ why can't we access protected wxLog method from here (we derive
- // from wxLog)? gcc gives "DoLog is protected in this context", what
- // does this mean? Anyhow, the cast is harmless and let's us do what
- // we want.
- ((wxLogWindow *)m_pOldLog)->DoLog(level, szString);
- }
-
- if ( m_pLogFrame ) {
- switch ( level ) {
- case wxLOG_Status:
- // by default, these messages are ignored by wxLog, so process
- // them ourselves
- {
- wxString str = TimeStamp();
- str << _("Status: ") << szString;
- DoLogString(str);
- }
- break;
-
- // don't put trace messages in the text window for 2 reasons:
- // 1) there are too many of them
- // 2) they may provoke other trace messages thus sending a program
- // into an infinite loop
- case wxLOG_Trace:
- break;
-
- default:
- // and this will format it nicely and call our DoLogString()
- wxLog::DoLog(level, szString);
- }
- }
-
- m_bHasMessages = TRUE;
-}
-
-void wxLogWindow::DoLogString(const char *szString)
-{
- // put the text into our window
- wxTextCtrl *pText = m_pLogFrame->TextCtrl();
-
- // remove selection (WriteText is in fact ReplaceSelection)
- #ifdef __WXMSW__
- long nLen = pText->GetLastPosition();
- pText->SetSelection(nLen, nLen);
- #endif // Windows
-
- pText->WriteText(szString);
- pText->WriteText("\n"); // "\n" ok here (_not_ "\r\n")
-
- // TODO ensure that the line can be seen
-}
-
-wxFrame *wxLogWindow::GetFrame() const
-{
- return m_pLogFrame;
-}
-
-void wxLogWindow::OnFrameCreate(wxFrame * WXUNUSED(frame))
-{
-}
-
-void wxLogWindow::OnFrameDelete(wxFrame * WXUNUSED(frame))
-{
- m_pLogFrame = (wxLogFrame *)NULL;
-}
-
-wxLogWindow::~wxLogWindow()
-{
- delete m_pOldLog;
-
- // may be NULL if log frame already auto destroyed itself
- delete m_pLogFrame;
-}
-
-#endif //wxUSE_NOGUI
projects / wxWidgets.git / blobdiff