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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
// RCS-ID:      $Id$
// Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifndef   _WX_LOGG_H_
#define   _WX_LOGG_H_

#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
    #pragma interface "logg.h"
#endif

#if wxUSE_GUI

// ----------------------------------------------------------------------------
// 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 WXDLLEXPORT wxLogTextCtrl : public wxLog
{
public:
    wxLogTextCtrl(wxTextCtrl *pTextCtrl);

private:
    // implement sink function
    virtual void DoLogString(const wxChar *szString, time_t t);

    // the control we use
    wxTextCtrl *m_pTextCtrl;

    DECLARE_NO_COPY_CLASS(wxLogTextCtrl)
};

#endif // wxUSE_TEXTCTRL

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

#if wxUSE_LOGGUI

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

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

protected:
    virtual void DoLog(wxLogLevel level, const wxChar *szString, time_t t);

    // 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?

};

#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 it's own menu which allows the user to
// close it, clear the log contents or save it to the file.
// ----------------------------------------------------------------------------

#if wxUSE_LOGWINDOW

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

    ~wxLogWindow();

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

    // overridables
        // called immediately after the log frame creation allowing for
        // any extra initializations
    virtual void OnFrameCreate(wxFrame *frame);
        // 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 DoLog(wxLogLevel level, const wxChar *szString, time_t t);
    virtual void DoLogString(const wxChar *szString, time_t t);

private:
    wxLogFrame *m_pLogFrame;      // the log frame

    DECLARE_NO_COPY_CLASS(wxLogWindow)
};

#endif // wxUSE_LOGWINDOW

#endif // wxUSE_GUI

#endif  // _WX_LOGG_H_