progress_reporter.h

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2017 CERN
 * Author: Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
*
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, you may find one here:
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * or you may search the http://www.gnu.org website for the version 2 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 */

#ifndef __PROGRESS_REPORTER
#define __PROGRESS_REPORTER

#include <mutex>
#include <atomic>

#include <wx/progdlg.h>
#include <wx/gauge.h>
#if wxCHECK_VERSION(3, 1, 0)
#include <wx/appprogress.h>
#endif

class PROGRESS_REPORTER
{
public:

    PROGRESS_REPORTER( int aNumPhases );
    PROGRESS_REPORTER( const PROGRESS_REPORTER& ) = delete;

    virtual ~PROGRESS_REPORTER()
    {
    }

    void SetNumPhases( int aNumPhases );
    void AddPhases( int aNumPhases );

    virtual void BeginPhase( int aPhase );

    virtual void AdvancePhase();

    virtual void AdvancePhase( const wxString& aMessage );

    virtual void Report( const wxString& aMessage );

    virtual void SetCurrentProgress( double aProgress );

    void SetMaxProgress( int aMaxProgress );

    void AdvanceProgress();

    bool KeepRefreshing( bool aWait = false );

    virtual void SetTitle( const wxString& aTitle ) {}

    bool IsCancelled() const { return m_cancelled.load(); }

protected:

    int currentProgress() const;

    virtual bool updateUI() = 0;

    wxString           m_rptMessage;
    mutable std::mutex m_mutex;
    std::atomic_int    m_phase;
    std::atomic_int    m_numPhases;
    std::atomic_int    m_progress;
    std::atomic_int    m_maxProgress;
    std::atomic_bool   m_cancelled;
};

class WX_PROGRESS_REPORTER : public PROGRESS_REPORTER, public wxProgressDialog
{
public:
    WX_PROGRESS_REPORTER( wxWindow* aParent, const wxString& aTitle, int aNumPhases,
                          bool aCanAbort = true, bool aReserveSpaceForMessage = true );
    ~WX_PROGRESS_REPORTER();

    virtual void SetTitle( const wxString& aTitle ) override
    {
        wxProgressDialog::SetTitle( aTitle );
    }

private:
#if wxCHECK_VERSION(3, 1, 0)
    wxAppProgressIndicator m_appProgressIndicator;
#endif

    virtual bool updateUI() override;
};


class GAUGE_PROGRESS_REPORTER : public PROGRESS_REPORTER, public wxGauge
{
public:
    GAUGE_PROGRESS_REPORTER( wxWindow* aParent, int aNumPhases );

private:

    bool updateUI() override;
};

#endif