514 lines
18 KiB
C++
514 lines
18 KiB
C++
/******************************************************************************\
|
|
* Copyright (c) 2004-2020
|
|
*
|
|
* 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.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
|
|
*
|
|
\******************************************************************************/
|
|
|
|
#include "historygraph.h"
|
|
|
|
|
|
/* Abstract class *************************************************************/
|
|
AHistoryGraph::AHistoryGraph ( const int iMaxDaysHistory ) :
|
|
sFileName ( "" ),
|
|
bDoHistory ( false ),
|
|
vHistoryDataFifo ( NUM_ITEMS_HISTORY ),
|
|
iNumTicksX ( 0 ), // number of days in history
|
|
iHistMaxDays ( iMaxDaysHistory ),
|
|
|
|
BackgroundColor ( "white" ), // background
|
|
FrameColor ( "black" ), // frame
|
|
GridColor ( "gray" ), // grid
|
|
TextColor ( "black" ), // text
|
|
MarkerNewColor ( "darkCyan" ), // marker for new connection
|
|
MarkerNewLocalColor ( "blue" ), // marker for new local connection
|
|
MarkerStopColor ( "red" ), // marker for server stop
|
|
|
|
canvasRectX ( 0 ),
|
|
canvasRectY ( 0 ),
|
|
canvasRectWidth ( 640 ),
|
|
canvasRectHeight ( 450 ),
|
|
|
|
iGridFrameOffset ( 10 ),
|
|
iGridWidthWeekend ( 3 ), // should be an odd value
|
|
iXAxisTextHeight ( 22 ),
|
|
gridFrameX ( canvasRectX + iGridFrameOffset ),
|
|
gridFrameY ( canvasRectY + iGridFrameOffset ),
|
|
gridFrameWidth ( canvasRectWidth - 2 * iGridFrameOffset ),
|
|
gridFrameHeight ( canvasRectHeight - 2 * iGridFrameOffset - iXAxisTextHeight ),
|
|
gridFrameRight ( gridFrameX + gridFrameWidth - 1 ),
|
|
gridFrameBottom ( gridFrameY + gridFrameHeight - 1 ),
|
|
|
|
axisFontFamily ( "Arial" ),
|
|
axisFontWeight ( "100" ),
|
|
axisFontSize ( 12 ),
|
|
|
|
iYAxisStart ( 0 ),
|
|
iYAxisEnd ( 24 ),
|
|
iNumTicksY ( 5 ),
|
|
|
|
iTextOffsetToGrid ( 3 ),
|
|
iTextOffsetX ( 18 ),
|
|
|
|
iMarkerSizeNewCon ( 10 ),
|
|
iMarkerSizeServSt ( 6 )
|
|
{
|
|
}
|
|
|
|
void AHistoryGraph::Start ( const QString& sNewFileName )
|
|
{
|
|
QTextStream& tsConsoleStream = *( ( new ConsoleWriterFactory() )->get() );
|
|
tsConsoleStream << QString ( "AHistoryGraph::Start ( %1 )" ).arg ( sNewFileName ) << endl; // on console
|
|
|
|
if ( !sNewFileName.isEmpty() )
|
|
{
|
|
// save file name
|
|
sFileName = sNewFileName;
|
|
|
|
// set enable flag
|
|
bDoHistory = true;
|
|
|
|
// enable timer (update once a day)
|
|
TimerDailyUpdate.start ( 3600000 * 24 );
|
|
|
|
// initial update (empty graph)
|
|
Update();
|
|
}
|
|
}
|
|
|
|
void AHistoryGraph::Add ( const QDateTime& newDateTime, const EHistoryItemType curType )
|
|
{
|
|
if ( bDoHistory )
|
|
{
|
|
// create and add new element in FIFO
|
|
SHistoryData curHistoryData;
|
|
curHistoryData.DateTime = newDateTime;
|
|
curHistoryData.Type = curType;
|
|
|
|
vHistoryDataFifo.Add ( curHistoryData );
|
|
}
|
|
}
|
|
|
|
void AHistoryGraph::Add ( const QDateTime& newDateTime, const QHostAddress ClientInetAddr )
|
|
{
|
|
if ( bDoHistory )
|
|
{
|
|
// add element to history, distinguish between a local connection
|
|
// and a remote connection
|
|
if ( ( ClientInetAddr == QHostAddress ( "127.0.0.1" ) ) ||
|
|
( ClientInetAddr.toString().left ( 7 ).compare ( "192.168" ) == 0 ) )
|
|
{
|
|
// local connection
|
|
Add ( newDateTime, HIT_LOCAL_CONNECTION );
|
|
}
|
|
else
|
|
{
|
|
// remote connection
|
|
Add ( newDateTime, HIT_REMOTE_CONNECTION );
|
|
}
|
|
}
|
|
}
|
|
|
|
void AHistoryGraph::Update ( )
|
|
{
|
|
if ( bDoHistory )
|
|
{
|
|
int i;
|
|
|
|
// store current date for reference
|
|
curDate = QDate::currentDate();
|
|
|
|
// set oldest date to draw
|
|
QDate minDate = curDate.addDays ( iHistMaxDays * -1 );
|
|
|
|
// get oldest date in history
|
|
QDate oldestDate = curDate.addDays ( 1 ); // one day in the future
|
|
const int iNumItemsForHistory = vHistoryDataFifo.Size();
|
|
|
|
for ( i = 0; i < iNumItemsForHistory; i++ )
|
|
{
|
|
// only use valid dates
|
|
if ( vHistoryDataFifo[i].DateTime.date().isValid() )
|
|
{
|
|
if ( vHistoryDataFifo[i].DateTime.date() < oldestDate )
|
|
{
|
|
oldestDate = vHistoryDataFifo[i].DateTime.date();
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( oldestDate < minDate )
|
|
{
|
|
oldestDate = minDate;
|
|
}
|
|
|
|
const int iNumDaysInHistory = -curDate.daysTo ( oldestDate ) + 1;
|
|
|
|
// draw frame of the graph
|
|
DrawFrame ( iNumDaysInHistory );
|
|
|
|
// add markers
|
|
for ( i = 0; i < iNumItemsForHistory; i++ )
|
|
{
|
|
// only use valid dates
|
|
if ( vHistoryDataFifo[i].DateTime.date().isValid() && ( oldestDate <= vHistoryDataFifo[i].DateTime.date() ) )
|
|
{
|
|
AddMarker ( vHistoryDataFifo[i] );
|
|
}
|
|
}
|
|
|
|
// save graph as picture in file
|
|
Save ( sFileName );
|
|
}
|
|
}
|
|
|
|
void AHistoryGraph::DrawFrame ( const int iNewNumTicksX )
|
|
{
|
|
int i;
|
|
|
|
// store number of x-axis ticks (number of days we want to draw
|
|
// the history for
|
|
iNumTicksX = iNewNumTicksX;
|
|
|
|
|
|
// Create actual plot region (grid frame) ----------------------------------
|
|
rect( gridFrameX, gridFrameY, gridFrameWidth, gridFrameHeight );
|
|
|
|
// calculate step for x-axis ticks so that we get the desired number of
|
|
// ticks -> 5 ticks
|
|
|
|
// TODO the following equation does not work as expected but results are acceptable
|
|
|
|
// we want to have "floor ( iNumTicksX / 5 )" which is the same as
|
|
// "iNumTicksX / 5" since "iNumTicksX" is an integer variable
|
|
const int iXAxisTickStep = iNumTicksX / 5 + 1;
|
|
|
|
// grid (ticks) for x-axis
|
|
dayXSpace = static_cast<double> ( gridFrameWidth ) / ( iNumTicksX + 1 );
|
|
|
|
for ( i = 0; i < static_cast<int> ( iNumTicksX ); i++ )
|
|
{
|
|
int iBottomExtraTickLen = 0;
|
|
const int iCurX = gridFrameX + static_cast<int> ( dayXSpace * ( i + 1 ) );
|
|
const QDate curXAxisDate = curDate.addDays ( 0 - static_cast<signed> ( iNumTicksX ) + i + 1 );
|
|
|
|
// text (print only every "iXAxisTickStep" tick)
|
|
if ( !( i % iXAxisTickStep ) )
|
|
{
|
|
text ( iCurX - iTextOffsetX, gridFrameBottom + iXAxisTextHeight + iTextOffsetToGrid, curXAxisDate.toString ( "dd.MM." ) );
|
|
|
|
iBottomExtraTickLen = 5;
|
|
}
|
|
|
|
// regular grid
|
|
line ( iCurX, 1 + gridFrameY, iCurX, gridFrameBottom + iBottomExtraTickLen );
|
|
|
|
// different grid width for weekends (overwrite regular grid)
|
|
if ( ( curXAxisDate.dayOfWeek() == 6 ) || // check for Saturday
|
|
( curXAxisDate.dayOfWeek() == 7 ) ) // check for Sunday
|
|
{
|
|
const int iGridWidthWeekendHalf = iGridWidthWeekend / 2;
|
|
|
|
line ( iCurX, 1 + gridFrameY + iGridWidthWeekendHalf, iCurX, gridFrameBottom - iGridWidthWeekendHalf, iGridWidthWeekend );
|
|
}
|
|
}
|
|
|
|
// grid (ticks) for y-axis, draw iNumTicksY - 2 grid lines and
|
|
// iNumTicksY - 1 text labels (the lowest grid line is the grid frame)
|
|
iYSpace = gridFrameHeight / ( iNumTicksY - 1 );
|
|
|
|
for ( i = 0; i < ( static_cast<int> ( iNumTicksY ) - 1 ); i++ )
|
|
{
|
|
const int iCurY = gridFrameY + iYSpace * ( i + 1 );
|
|
|
|
// text
|
|
text ( gridFrameX + iTextOffsetToGrid,
|
|
iCurY - iTextOffsetToGrid,
|
|
QString ( "%1:00" ).arg ( ( iYAxisEnd - iYAxisStart ) / ( iNumTicksY - 1 ) * ( ( iNumTicksY - 2 ) - i ) ) );
|
|
|
|
// grid (do not overwrite frame)
|
|
if ( i < ( static_cast<int> ( iNumTicksY ) - 2 ) )
|
|
{
|
|
line ( gridFrameX, iCurY, gridFrameRight, iCurY );
|
|
}
|
|
}
|
|
}
|
|
|
|
void AHistoryGraph::AddMarker ( const SHistoryData& curHistoryData )
|
|
{
|
|
// calculate x-axis offset (difference of days compared to
|
|
// current date)
|
|
const int iXAxisOffs =
|
|
curDate.daysTo ( curHistoryData.DateTime.date() );
|
|
|
|
// check range, if out of range, do not plot anything
|
|
if ( -iXAxisOffs > ( static_cast<signed> ( iNumTicksX ) - 1 ) )
|
|
{
|
|
return;
|
|
}
|
|
|
|
// calculate y-axis offset (consider hours and minutes)
|
|
const double dYAxisOffs = 24 - curHistoryData.DateTime.time().hour() -
|
|
static_cast<double> ( curHistoryData.DateTime.time().minute() ) / 60;
|
|
|
|
// calculate the actual point in the graph (in pixels)
|
|
int curPointX = gridFrameX + static_cast<int> ( dayXSpace * ( static_cast<signed> ( iNumTicksX ) + iXAxisOffs ) );
|
|
int curPointY = gridFrameY + static_cast<int> ( static_cast<double> (
|
|
gridFrameHeight ) / ( iYAxisEnd - iYAxisStart ) * dYAxisOffs );
|
|
|
|
QString curPointColour = MarkerNewColor;
|
|
int curPointSize = iMarkerSizeNewCon;
|
|
|
|
// we use different markers for new connection and server stop items
|
|
switch ( curHistoryData.Type )
|
|
{
|
|
case HIT_SERVER_STOP:
|
|
curPointColour = MarkerStopColor;
|
|
curPointSize = iMarkerSizeServSt;
|
|
break;
|
|
|
|
case HIT_LOCAL_CONNECTION:
|
|
curPointColour = MarkerNewLocalColor;
|
|
break;
|
|
|
|
case HIT_REMOTE_CONNECTION:
|
|
curPointColour = MarkerNewColor;
|
|
break;
|
|
}
|
|
|
|
point ( curPointX - curPointSize / 2, curPointY - curPointSize / 2, curPointSize, curPointColour );
|
|
}
|
|
|
|
|
|
/* JPEG History Graph implementation ******************************************/
|
|
#ifndef HEADLESS
|
|
CJpegHistoryGraph::CJpegHistoryGraph ( const int iMaxDaysHistory ) :
|
|
AHistoryGraph ( iMaxDaysHistory ),
|
|
PlotPixmap ( 1, 1, QImage::Format_RGB32 ),
|
|
iAxisFontWeight ( -1 )
|
|
{
|
|
// scale pixmap to correct size
|
|
PlotPixmap = PlotPixmap.scaled ( canvasRectWidth, canvasRectHeight );
|
|
|
|
// axisFontWeight is a string matching the CSS2 font-weight definition
|
|
// Thin = 0, // 100
|
|
// ExtraLight = 12, // 200
|
|
// Light = 25, // 300
|
|
// Normal = 50, // 400
|
|
// Medium = 57, // 500
|
|
// DemiBold = 63, // 600
|
|
// Bold = 75, // 700
|
|
// ExtraBold = 81, // 800
|
|
// Black = 87 // 900
|
|
bool ok;
|
|
int weight = axisFontWeight.toInt( &ok );
|
|
|
|
if ( !ok )
|
|
{
|
|
if ( !QString ( "normal" ).compare ( axisFontWeight, Qt::CaseSensitivity::CaseInsensitive ) )
|
|
{
|
|
iAxisFontWeight = 50;
|
|
}
|
|
else if ( !QString ( "bold" ).compare ( axisFontWeight, Qt::CaseSensitivity::CaseInsensitive ) )
|
|
{
|
|
weight = 75;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if ( weight <= 100 ) { iAxisFontWeight = 0; }
|
|
else if ( weight <= 200 ) { iAxisFontWeight = 12; }
|
|
else if ( weight <= 300 ) { iAxisFontWeight = 25; }
|
|
else if ( weight <= 400 ) { iAxisFontWeight = 50; }
|
|
else if ( weight <= 500 ) { iAxisFontWeight = 57; }
|
|
else if ( weight <= 600 ) { iAxisFontWeight = 63; }
|
|
else if ( weight <= 700 ) { iAxisFontWeight = 75; }
|
|
else if ( weight <= 800 ) { iAxisFontWeight = 81; }
|
|
else if ( weight <= 900 ) { iAxisFontWeight = 87; }
|
|
}
|
|
// if all else fails, it's left at -1
|
|
|
|
// QTextStream& tsConsoleStream = *( ( new ConsoleWriterFactory() )->get() );
|
|
// tsConsoleStream << "CJpegHistoryGraph" << endl; // on console
|
|
|
|
|
|
// Connections -------------------------------------------------------------
|
|
QObject::connect ( &TimerDailyUpdate, &QTimer::timeout,
|
|
this, &CJpegHistoryGraph::OnTimerDailyUpdate );
|
|
}
|
|
|
|
// Override Update to blank out the plot area each time
|
|
void CJpegHistoryGraph::Update()
|
|
{
|
|
if ( bDoHistory )
|
|
{
|
|
// create JPEG image
|
|
PlotPixmap.fill ( BackgroundColor ); // fill background
|
|
|
|
AHistoryGraph::Update();
|
|
}
|
|
}
|
|
|
|
void CJpegHistoryGraph::Save ( const QString sFileName )
|
|
{
|
|
// save plot as a file
|
|
PlotPixmap.save ( sFileName, "JPG", 90 );
|
|
}
|
|
|
|
void CJpegHistoryGraph::rect ( const unsigned int x, const unsigned int y, const unsigned int width, const unsigned int height )
|
|
{
|
|
QPainter PlotPainter ( &PlotPixmap );
|
|
PlotPainter.setPen ( FrameColor );
|
|
PlotPainter.drawRect ( x, y, width, height );
|
|
}
|
|
|
|
void CJpegHistoryGraph::text ( const unsigned int x, const unsigned int y, const QString& value )
|
|
{
|
|
QPainter PlotPainter ( &PlotPixmap );
|
|
PlotPainter.setPen ( TextColor );
|
|
// QFont(const QString &family, int pointSize = -1, int weight = -1, bool italic = false);
|
|
PlotPainter.setFont ( QFont( axisFontFamily, static_cast<int> ( axisFontSize ), iAxisFontWeight ) );
|
|
PlotPainter.drawText ( QPoint ( x, y ), value );
|
|
}
|
|
|
|
void CJpegHistoryGraph::line ( const unsigned int x1, const unsigned int y1, const unsigned int x2, const unsigned int y2, const unsigned int strokeWidth )
|
|
{
|
|
QPainter PlotPainter ( &PlotPixmap );
|
|
PlotPainter.setPen ( QPen ( QBrush ( QColor ( GridColor ) ), strokeWidth ) );
|
|
PlotPainter.drawLine ( x1, y1, x2, y2 );
|
|
}
|
|
|
|
void CJpegHistoryGraph::point ( const unsigned int x, const unsigned int y, const unsigned int size, const QString& colour )
|
|
{
|
|
QPainter PlotPainter ( &PlotPixmap );
|
|
PlotPainter.setPen ( QPen ( QBrush( QColor ( colour ) ), size ) );
|
|
PlotPainter.drawPoint ( x, y );
|
|
}
|
|
#endif
|
|
|
|
|
|
/* SVG History Graph implementation *******************************************/
|
|
CSvgHistoryGraph::CSvgHistoryGraph ( const int iMaxDaysHistory ) :
|
|
AHistoryGraph ( iMaxDaysHistory ),
|
|
svgImage ( "" ),
|
|
svgStreamWriter ( &svgImage )
|
|
{
|
|
// set SVG veiwBox to correct size to ensure correct scaling
|
|
svgRootAttributes.append ( "viewBox",
|
|
QString ( "%1, %2, %3, %4" )
|
|
.arg ( canvasRectX )
|
|
.arg ( canvasRectY )
|
|
.arg ( canvasRectWidth )
|
|
.arg ( canvasRectHeight )
|
|
);
|
|
|
|
svgRootAttributes.append ( "xmlns", "http://www.w3.org/2000/svg" );
|
|
svgRootAttributes.append ( "xmlns:xlink", "http://www.w3.org/1999/xlink" );
|
|
|
|
// QTextStream& tsConsoleStream = *( ( new ConsoleWriterFactory() )->get() );
|
|
// tsConsoleStream << "CSvgHistoryGraph" << endl; // on console
|
|
|
|
|
|
// Connections -------------------------------------------------------------
|
|
QObject::connect ( &TimerDailyUpdate, &QTimer::timeout,
|
|
this, &CSvgHistoryGraph::OnTimerDailyUpdate );
|
|
}
|
|
|
|
// Override Update to create the fresh SVG stream each time
|
|
void CSvgHistoryGraph::Update()
|
|
{
|
|
if ( bDoHistory )
|
|
{
|
|
// create SVG document
|
|
svgImage = "";
|
|
|
|
svgStreamWriter.setAutoFormatting ( true );
|
|
svgStreamWriter.writeStartDocument();
|
|
svgStreamWriter.writeStartElement ( "svg" );
|
|
svgStreamWriter.writeAttributes ( svgRootAttributes );
|
|
|
|
AHistoryGraph::Update();
|
|
}
|
|
}
|
|
|
|
void CSvgHistoryGraph::Save ( const QString sFileName )
|
|
{
|
|
svgStreamWriter.writeEndDocument();
|
|
|
|
QFile outf ( sFileName );
|
|
|
|
if ( !outf.open ( QFile::WriteOnly ) )
|
|
{
|
|
throw std::runtime_error ( ( sFileName + " could not be written. Aborting." ).toStdString() );
|
|
}
|
|
QTextStream out ( &outf );
|
|
|
|
out << svgImage << endl;
|
|
}
|
|
|
|
void CSvgHistoryGraph::rect ( const unsigned int x, const unsigned int y, const unsigned int width, const unsigned int height )
|
|
{
|
|
svgStreamWriter.writeEmptyElement ( "rect" );
|
|
svgStreamWriter.writeAttribute ( "x", QString ( "%1" ).arg ( x ) );
|
|
svgStreamWriter.writeAttribute ( "y", QString ( "%1" ).arg ( y ) );
|
|
svgStreamWriter.writeAttribute ( "width", QString ( "%1" ).arg ( width ) );
|
|
svgStreamWriter.writeAttribute ( "height", QString ( "%1" ).arg ( height ) );
|
|
svgStreamWriter.writeAttribute ( "stroke", FrameColor );
|
|
svgStreamWriter.writeAttribute ( "stroke-width", QString ( "1" ) );
|
|
svgStreamWriter.writeAttribute ( "style", QString ( "fill: none;" ) );
|
|
}
|
|
|
|
void CSvgHistoryGraph::text ( const unsigned int x, const unsigned int y, const QString& value )
|
|
{
|
|
svgStreamWriter.writeStartElement ( "text" );
|
|
svgStreamWriter.writeAttribute ( "x", QString ( "%1" ).arg ( x ) );
|
|
svgStreamWriter.writeAttribute ( "y", QString ( "%1" ).arg ( y ) );
|
|
svgStreamWriter.writeAttribute ( "stroke", TextColor );
|
|
svgStreamWriter.writeAttribute ( "font-family", axisFontFamily );
|
|
svgStreamWriter.writeAttribute ( "font-weight", axisFontWeight );
|
|
svgStreamWriter.writeAttribute ( "font-size", QString ( "%1" ).arg ( axisFontSize ) );
|
|
|
|
svgStreamWriter.writeCharacters( value );
|
|
svgStreamWriter.writeEndElement();
|
|
}
|
|
|
|
void CSvgHistoryGraph::line ( const unsigned int x1, const unsigned int y1, const unsigned int x2, const unsigned int y2, const unsigned int strokeWidth )
|
|
{
|
|
svgStreamWriter.writeEmptyElement ( "line" );
|
|
svgStreamWriter.writeAttribute ( "x1", QString ( "%1" ).arg ( x1 ) );
|
|
svgStreamWriter.writeAttribute ( "y1", QString ( "%1" ).arg ( y1 ) );
|
|
svgStreamWriter.writeAttribute ( "x2", QString ( "%1" ).arg ( x2 ) );
|
|
svgStreamWriter.writeAttribute ( "y2", QString ( "%1" ).arg ( y2 ) );
|
|
svgStreamWriter.writeAttribute ( "stroke", GridColor );
|
|
svgStreamWriter.writeAttribute ( "stroke-width", QString ( "%1" ).arg ( strokeWidth ) );
|
|
}
|
|
|
|
void CSvgHistoryGraph::point ( const unsigned int x, const unsigned int y, const unsigned int size, const QString& colour )
|
|
{
|
|
svgStreamWriter.writeEmptyElement ( "rect" );
|
|
svgStreamWriter.writeAttribute ( "x", QString ( "%1" ).arg ( x ) );
|
|
svgStreamWriter.writeAttribute ( "y", QString ( "%1" ).arg ( y ) );
|
|
svgStreamWriter.writeAttribute ( "width", QString ( "%1" ).arg ( size ) );
|
|
svgStreamWriter.writeAttribute ( "height", QString ( "%1" ).arg ( size ) );
|
|
svgStreamWriter.writeAttribute ( "stroke-opacity", "0" );
|
|
svgStreamWriter.writeAttribute ( "fill", colour );
|
|
}
|