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[wxWidgets.git] / include / wx / generic / logg.h

/////////////////////////////////////////////////////////////////////////////
// Name:        wx/generic/logg.h
// Purpose:     Assorted wxLogXXX functions, and wxLog (sink for logs)
// Author:      Vadim Zeitlin
// Modified by:
// Created:     29/01/98
// Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifndef   _WX_LOGG_H_
#define   _WX_LOGG_H_

#if wxUSE_GUI

class WXDLLIMPEXP_FWD_CORE wxTextCtrl;
class WXDLLIMPEXP_FWD_CORE wxLogFrame;
class WXDLLIMPEXP_FWD_CORE wxWindow;

// ----------------------------------------------------------------------------
// the following log targets are only compiled in if the we're compiling the
// GUI part (andnot just the base one) of the library, they're implemented in
// src/generic/logg.cpp *and not src/common/log.cpp unlike all the rest)
// ----------------------------------------------------------------------------

#if wxUSE_TEXTCTRL

// log everything to a text window (GUI only of course)
class WXDLLIMPEXP_CORE wxLogTextCtrl : public wxLog
{
public:
    wxLogTextCtrl(wxTextCtrl *pTextCtrl);

protected:
    // implement sink function
    virtual void DoLogText(const wxString& msg);

private:
    // the control we use
    wxTextCtrl *m_pTextCtrl;

    wxDECLARE_NO_COPY_CLASS(wxLogTextCtrl);
};

#endif // wxUSE_TEXTCTRL

// ----------------------------------------------------------------------------
// GUI log target, the default one for wxWidgets programs
// ----------------------------------------------------------------------------

#if wxUSE_LOGGUI

class WXDLLIMPEXP_CORE wxLogGui : public wxLog
{
public:
    // ctor
    wxLogGui();

    // show all messages that were logged since the last Flush()
    virtual void Flush();

protected:
    virtual void DoLogRecord(wxLogLevel level,
                             const wxString& msg,
                             const wxLogRecordInfo& info);

    // return the title to be used for the log dialog, depending on m_bErrors
    // and m_bWarnings values
    wxString GetTitle() const;

    // return the icon (one of wxICON_XXX constants) to be used for the dialog
    // depending on m_bErrors/m_bWarnings
    int GetSeverityIcon() const;

    // empty everything
    void Clear();


    wxArrayString m_aMessages;      // the log message texts
    wxArrayInt    m_aSeverity;      // one of wxLOG_XXX values
    wxArrayLong   m_aTimes;         // the time of each message
    bool          m_bErrors,        // do we have any errors?
                  m_bWarnings,      // any warnings?
                  m_bHasMessages;   // any messages at all?

private:
    // this method is called to show a single log message, it uses
    // wxMessageBox() by default
    virtual void DoShowSingleLogMessage(const wxString& message,
                                        const wxString& title,
                                        int style);

    // this method is called to show multiple log messages, it uses wxLogDialog
    virtual void DoShowMultipleLogMessages(const wxArrayString& messages,
                                           const wxArrayInt& severities,
                                           const wxArrayLong& times,
                                           const wxString& title,
                                           int style);
};

#endif // wxUSE_LOGGUI

// ----------------------------------------------------------------------------
// (background) log window: this class forwards all log messages to the log
// target which was active when it was instantiated, but also collects them
// to the log window. This window has its own menu which allows the user to
// close it, clear the log contents or save it to the file.
// ----------------------------------------------------------------------------

#if wxUSE_LOGWINDOW

class WXDLLIMPEXP_CORE wxLogWindow : public wxLogPassThrough
{
public:
    wxLogWindow(wxWindow *pParent,        // the parent frame (can be NULL)
                const wxString& szTitle,  // the title of the frame
                bool bShow = true,        // show window immediately?
                bool bPassToOld = true);  // pass messages to the old target?

    virtual ~wxLogWindow();

    // window operations
        // show/hide the log window
    void Show(bool bShow = true);
        // retrieve the pointer to the frame
    wxFrame *GetFrame() const;

    // overridables
        // called if the user closes the window interactively, will not be
        // called if it is destroyed for another reason (such as when program
        // exits) - return true from here to allow the frame to close, false
        // to prevent this from happening
    virtual bool OnFrameClose(wxFrame *frame);
        // called right before the log frame is going to be deleted: will
        // always be called unlike OnFrameClose()
    virtual void OnFrameDelete(wxFrame *frame);

protected:
    virtual void DoLogTextAtLevel(wxLogLevel level, const wxString& msg);

private:
    wxLogFrame *m_pLogFrame;      // the log frame

    wxDECLARE_NO_COPY_CLASS(wxLogWindow);
};

#endif // wxUSE_LOGWINDOW

#endif // wxUSE_GUI

#endif  // _WX_LOGG_H_