jamulus/src/historygraph.h

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/******************************************************************************\
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* Copyright (c) 2004-2020
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*
* Author(s):
* Volker Fischer
* Peter L Jones <pljones@users.sf.net>
*
******************************************************************************
*
* 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, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
\******************************************************************************/
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#pragma once
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#include <QDateTime>
#include <QHostAddress>
#include <QFile>
#include <QString>
#include <QTimer>
#include "global.h"
#include "util.h"
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// for CJpegHistoryGraph
#include <QImage>
#include <QPainter>
// for CSvgHistoryGraph
#include <QXmlStreamWriter>
#include <QXmlStreamAttributes>
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/* Definitions ****************************************************************/
// number of history items to store
#define NUM_ITEMS_HISTORY 20000
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/* Interface ******************************************************************/
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class AHistoryGraph
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{
public:
enum EHistoryItemType
{
HIT_LOCAL_CONNECTION,
HIT_REMOTE_CONNECTION,
HIT_SERVER_STOP
};
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AHistoryGraph ( const int iMaxDaysHistory );
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~AHistoryGraph() { }
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void Start ( const QString& sNewFileName );
void Add ( const QDateTime& newDateTime, const EHistoryItemType curType );
void Add ( const QDateTime& newDateTime, const QHostAddress ClientInetAddr );
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virtual void Update ( );
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protected:
struct SHistoryData
{
QDateTime DateTime;
EHistoryItemType Type;
};
void DrawFrame ( const int iNewNumTicksX );
void AddMarker ( const SHistoryData& curHistoryData );
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virtual void Save ( const QString sFileName ) = 0;
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virtual void rect ( const unsigned int x, const unsigned int y, const unsigned int width, const unsigned int height ) = 0;
virtual void text ( const unsigned int x, const unsigned int y, const QString& value ) = 0;
virtual void line ( const unsigned int x1, const unsigned int y1, const unsigned int x2, const unsigned int y2, const unsigned int strokeWidth = 1 ) = 0;
virtual void point ( const unsigned int x, const unsigned int y, const unsigned int size, const QString& colour ) = 0;
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// Constructor sets these
QString sFileName;
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bool bDoHistory;
CFIFO<SHistoryData> vHistoryDataFifo;
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unsigned int iNumTicksX; // Class global, not sure why
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int iHistMaxDays;
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QString BackgroundColor;
QString FrameColor;
QString GridColor;
QString TextColor;
QString MarkerNewColor;
QString MarkerNewLocalColor;
QString MarkerStopColor;
const unsigned int canvasRectX;
const unsigned int canvasRectY;
const unsigned int canvasRectWidth;
const unsigned int canvasRectHeight;
const unsigned int iGridFrameOffset;
const unsigned int iGridWidthWeekend;
const unsigned int iXAxisTextHeight;
const unsigned int gridFrameX;
const unsigned int gridFrameY;
const unsigned int gridFrameWidth;
const unsigned int gridFrameHeight;
const unsigned int gridFrameRight;
const unsigned int gridFrameBottom;
const QString axisFontFamily;
const QString axisFontWeight;
const unsigned int axisFontSize;
const unsigned int iYAxisStart;
const unsigned int iYAxisEnd;
const unsigned int iNumTicksY;
const unsigned int iTextOffsetToGrid;
const unsigned int iTextOffsetX;
const unsigned int iMarkerSizeNewCon;
const unsigned int iMarkerSizeServSt;
// others
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double dayXSpace;
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unsigned int iYSpace;
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QDate curDate;
QTimer TimerDailyUpdate;
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};
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/* Implementations ************************************************************/
class CJpegHistoryGraph : public QObject, virtual public AHistoryGraph
{
Q_OBJECT
public:
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CJpegHistoryGraph ( const int iMaxDaysHistory );
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virtual void Update ( );
protected:
virtual void Save ( const QString sFileName );
virtual void rect ( const unsigned int x, const unsigned int y, const unsigned int width, const unsigned int height );
virtual void text ( const unsigned int x, const unsigned int y, const QString& value );
virtual void line ( const unsigned int x1, const unsigned int y1, const unsigned int x2, const unsigned int y2, const unsigned int strokeWidth = 1 );
virtual void point ( const unsigned int x, const unsigned int y, const unsigned int size, const QString& colour );
private:
QImage PlotPixmap;
int iAxisFontWeight;
public slots:
void OnTimerDailyUpdate() { Update(); }
};
class CSvgHistoryGraph : public QObject, virtual public AHistoryGraph
{
Q_OBJECT
public:
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CSvgHistoryGraph ( const int iMaxDaysHistory );
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virtual void Update();
protected:
virtual void Save ( const QString sFileName );
virtual void rect ( const unsigned int x, const unsigned int y, const unsigned int width, const unsigned int height );
virtual void text ( const unsigned int x, const unsigned int y, const QString& value );
virtual void line ( const unsigned int x1, const unsigned int y1, const unsigned int x2, const unsigned int y2, const unsigned int strokeWidth = 1 );
virtual void point ( const unsigned int x, const unsigned int y, const unsigned int size, const QString& colour );
private:
QXmlStreamAttributes svgRootAttributes;
QString svgImage;
QXmlStreamWriter svgStreamWriter;
public slots:
void OnTimerDailyUpdate() { Update(); }
};