kicad/include/widgets/progress_reporter_base.h

134 lines
3.9 KiB
C++

/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2017 CERN
* Copyright (C) 2021 KiCad Developers, see AUTHORS.txt for contributors.
*
* 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 GENERIC_PROGRESS_REPORTER_H
#define GENERIC_PROGRESS_REPORTER_H
#include <mutex>
#include <atomic>
#include <progress_reporter.h>
/**
* This implements all the tricky bits for thread safety, but the GUI is left to derived classes.
*/
class KICOMMON_API PROGRESS_REPORTER_BASE : public PROGRESS_REPORTER
{
public:
PROGRESS_REPORTER_BASE( int aNumPhases );
PROGRESS_REPORTER_BASE( const PROGRESS_REPORTER_BASE& ) = delete;
virtual ~PROGRESS_REPORTER_BASE()
{
}
/**
* Set the number of phases.
*/
void SetNumPhases( int aNumPhases ) override;
void AddPhases( int aNumPhases ) override;
/**
* Initialize the \a aPhase virtual zone of the dialog progress bar.
*/
virtual void BeginPhase( int aPhase ) override;
/**
* Use the next available virtual zone of the dialog progress bar.
*/
virtual void AdvancePhase() override;
/**
* Use the next available virtual zone of the dialog progress bar and updates the message.
*/
virtual void AdvancePhase( const wxString& aMessage ) override;
/**
* Display \a aMessage in the progress bar dialog.
*/
virtual void Report( const wxString& aMessage ) override;
/**
* Set the progress value to aProgress (0..1).
*/
virtual void SetCurrentProgress( double aProgress ) override;
/**
* Fix the value that gives the 100 percent progress bar length
* (inside the current virtual zone).
*/
void SetMaxProgress( int aMaxProgress ) override;
/**
* Increment the progress bar length (inside the current virtual zone).
*/
void AdvanceProgress() override;
/**
* Update the UI dialog.
*
* @warning This should only be called from the main thread.
*
* @return false if the user clicked Cancel.
*/
bool KeepRefreshing( bool aWait = false ) override;
/**
* Change the title displayed on the window caption.
*
* Has meaning only for some reporters. Does nothing for others.
*
* @warning This should only be called from the main thread.
*/
void SetTitle( const wxString& aTitle ) override { }
bool IsCancelled() const override { return m_cancelled; }
int CurrentProgress() const;
protected:
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;
// True if the displayed message has changed,
// so perhaps there is a need to resize the window
// Note the resize is made only if the size of the new message
// is bigger than the old message
std::atomic_bool m_messageChanged;
};
#endif