97 lines
3.5 KiB
C++
97 lines
3.5 KiB
C++
#include "jpeghistorygraph.h"
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CJpegHistoryGraph::CJpegHistoryGraph() :
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AHistoryGraph(),
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PlotPixmap ( 1, 1, QImage::Format_RGB32 ),
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iAxisFontWeight ( -1 )
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{
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// scale pixmap to correct size
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PlotPixmap = PlotPixmap.scaled ( canvasRectWidth, canvasRectHeight );
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// axisFontWeight is a string matching the CSS2 font-weight definition
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// Thin = 0, // 100
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// ExtraLight = 12, // 200
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// Light = 25, // 300
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// Normal = 50, // 400
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// Medium = 57, // 500
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// DemiBold = 63, // 600
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// Bold = 75, // 700
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// ExtraBold = 81, // 800
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// Black = 87 // 900
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bool ok;
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int weight = axisFontWeight.toInt( &ok );
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if (!ok)
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{
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if (!QString("normal").compare(axisFontWeight, Qt::CaseSensitivity::CaseInsensitive)) { iAxisFontWeight = 50; }
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else if (!QString("bold").compare(axisFontWeight, Qt::CaseSensitivity::CaseInsensitive)) { weight = 75; }
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}
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else
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{
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if (weight <= 100) { iAxisFontWeight = 0; }
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else if (weight <= 200) { iAxisFontWeight = 12; }
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else if (weight <= 300) { iAxisFontWeight = 25; }
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else if (weight <= 400) { iAxisFontWeight = 50; }
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else if (weight <= 500) { iAxisFontWeight = 57; }
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else if (weight <= 600) { iAxisFontWeight = 63; }
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else if (weight <= 700) { iAxisFontWeight = 75; }
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else if (weight <= 800) { iAxisFontWeight = 81; }
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else if (weight <= 900) { iAxisFontWeight = 87; }
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}
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// if all else fails, it's left at -1
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QTextStream& tsConsoleStream = *( ( new ConsoleWriterFactory() )->get() );
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tsConsoleStream << "CJpegHistoryGraph" << endl; // on console
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// Connections -------------------------------------------------------------
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QObject::connect ( &TimerDailyUpdate, SIGNAL ( timeout() ),
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this, SLOT ( OnTimerDailyUpdate() ) );
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}
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// Override Update to create the fresh SVG stream each time
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void CJpegHistoryGraph::Update()
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{
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if ( bDoHistory )
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{
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// create JPEG image
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PlotPixmap.fill ( BackgroundColor ); // fill background
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AHistoryGraph::Update();
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}
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}
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void CJpegHistoryGraph::Save ( const QString sFileName )
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{
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// save plot as a file
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PlotPixmap.save ( sFileName, "JPG", 90 );
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}
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void CJpegHistoryGraph::rect ( const unsigned int x, const unsigned int y, const unsigned int width, const unsigned int height )
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{
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QPainter PlotPainter ( &PlotPixmap );
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PlotPainter.setPen ( FrameColor );
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PlotPainter.drawRect ( x, y, width, height );
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}
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void CJpegHistoryGraph::text ( const unsigned int x, const unsigned int y, const QString& value )
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{
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QPainter PlotPainter ( &PlotPixmap );
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PlotPainter.setPen ( TextColor );
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// QFont(const QString &family, int pointSize = -1, int weight = -1, bool italic = false);
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PlotPainter.setFont ( QFont( axisFontFamily, static_cast<int>(axisFontSize), iAxisFontWeight ) );
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PlotPainter.drawText ( QPoint ( x, y ), value );
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}
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void CJpegHistoryGraph::line ( const unsigned int x1, const unsigned int y1, const unsigned int x2, const unsigned int y2, const unsigned int strokeWidth )
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{
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QPainter PlotPainter ( &PlotPixmap );
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PlotPainter.setPen ( QPen ( QBrush ( QColor ( GridColor ) ), strokeWidth ) );
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PlotPainter.drawLine ( x1, y1, x2, y2 );
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}
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void CJpegHistoryGraph::point ( const unsigned int x, const unsigned int y, const unsigned int size, const QString& colour )
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{
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QPainter PlotPainter ( &PlotPixmap );
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PlotPainter.setPen ( QPen ( QBrush( QColor ( colour ) ), size ) );
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PlotPainter.drawPoint ( x, y );
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}
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