kicad/include/widgets/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>
/**
* A progress reporter for use in multi-threaded environments. The various advancement
* and message methods can be called from sub-threads. The KeepRefreshing method *MUST*
* be called only from the main thread (primarily a MSW requirement, which won't allow
* access to UI objects allocated from a separate thread).
*/
class PROGRESS_REPORTER
{
public:
PROGRESS_REPORTER( int aNumPhases );
PROGRESS_REPORTER( const PROGRESS_REPORTER& ) = delete;
virtual ~PROGRESS_REPORTER()
{
}
/**
* initialize the aPhase virtual zone of the dialog progress bar
*/
void BeginPhase( int aPhase );
/**
* Uses the next vailable virtual zone of the dialog progress bar
*/
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void AdvancePhase();
/**
* Display aMessage in the progress bar dialog
*/
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void Report( const wxString& aMessage );
/**
* Set the progress value to aProgress (0..1)
*/
void SetCurrentProgress( double aProgress );
/**
* Fix the value thar gives the 100 precent progress bar length
* (inside the current virtual zone)
*/
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void SetMaxProgress( int aMaxProgress );
/**
* Increment the progress bar length (inside the current virtual zone)
*/
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void AdvanceProgress();
/**
* Update the UI dialog. *MUST* only be called from the main thread.
* Returns false if the user clicked Cancel.
*/
bool KeepRefreshing( bool aWait = false );
/** change the title displayed on the window caption
* *MUST* only be called from the main thread.
* Has meaning only for some reporters.
* Do nothing for others
*/
virtual void SetTitle( const wxString& aTitle ) {}
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;
};
class WX_PROGRESS_REPORTER : public PROGRESS_REPORTER, public wxProgressDialog
{
public:
/**
* Ctor: the PROGRESS_REPORTER will stay on top of aParent.
* the style is wxPD_AUTO_HIDE | wxPD_CAN_ABORT | wxPD_ELAPSED_TIME
* @param aParent is the wxDialog of Frame that manage this.
* @param aTitle is the dialog progress title
* @param aNumPhases is the number of "virtual sections" of the progress bar
* aNumPhases = 1 is the usual progress bar
* aNumPhases = n creates n virtual progress bar zones: a 0 to 100 percent width
* of a virtual zone fills 0 to 1/n progress bar full size of the nth virtual zone index
* @param aCanAbort is true if the abort button should be shown
*/
WX_PROGRESS_REPORTER( wxWindow* aParent, const wxString& aTitle, int aNumPhases,
bool aCanAbort = true );
~WX_PROGRESS_REPORTER();
/** change the title displayed on the window caption
*/
virtual void SetTitle( const wxString& aTitle ) override
{
wxProgressDialog::SetTitle( aTitle );
}
private:
virtual bool updateUI() override;
};
class GAUGE_PROGRESS_REPORTER : public PROGRESS_REPORTER, public wxGauge
{
public:
/**
* @param aParent is the parent of the wxGauge control
* @param aNumPhases is the number of "virtual sections" of the progress bar
* aNumPhases = 1 is the usual progress bar
* aNumPhases = n creates n virtual progress bar zones: a 0 to 100 percent width
* of a virtual zone fills 0 to 1/n progress bar full size of the nth virtual zone index
*/
GAUGE_PROGRESS_REPORTER( wxWindow* aParent, int aNumPhases );
private:
bool updateUI() override;
};
#endif