Add files from zip

2023-10-31 09:22:42 +01:00
parent 6bacdc5f6d
commit 4dae68036f
2788 changed files with 492537 additions and 0 deletions
--- a/playground/timescale/Plot.cpp
+++ b/playground/timescale/Plot.cpp
@@ -0,0 +1,97 @@
+/*****************************************************************************
+ * Qwt Examples - Copyright (C) 2002 Uwe Rathmann
+ * This file may be used under the terms of the 3-clause BSD License
+ *****************************************************************************/
+
+#include "Plot.h"
+#include "Settings.h"
+
+#include <QwtDate>
+#include <QwtDateScaleDraw>
+#include <QwtDateScaleEngine>
+#include <QwtPlotPanner>
+#include <QwtPlotMagnifier>
+#include <QwtPlotGrid>
+#include <QwtPlotLayout>
+
+Plot::Plot( QWidget* parent )
+    : QwtPlot( parent )
+{
+    setAutoFillBackground( true );
+    setPalette( Qt::darkGray );
+    setCanvasBackground( Qt::white );
+
+    plotLayout()->setAlignCanvasToScales( true );
+
+    initAxis( QwtAxis::YLeft, "Local Time", Qt::LocalTime );
+    initAxis( QwtAxis::YRight,
+        "Coordinated Universal Time ( UTC )", Qt::UTC );
+
+    QwtPlotPanner* panner = new QwtPlotPanner( canvas() );
+    QwtPlotMagnifier* magnifier = new QwtPlotMagnifier( canvas() );
+
+    for ( int axis = 0; axis < QwtAxis::AxisPositions; axis++ )
+    {
+        const bool on = QwtAxis::isYAxis( axis );
+
+        setAxisVisible( axis, on );
+        panner->setAxisEnabled( axis, on );
+        magnifier->setAxisEnabled( axis, on );
+    }
+
+    QwtPlotGrid* grid = new QwtPlotGrid();
+    grid->setMajorPen( Qt::black, 0, Qt::SolidLine );
+    grid->setMinorPen( Qt::gray, 0, Qt::SolidLine );
+    grid->enableX( false );
+    grid->enableXMin( false );
+    grid->enableY( true );
+    grid->enableYMin( true );
+
+    grid->attach( this );
+}
+
+void Plot::initAxis( int axis,
+    const QString& title, Qt::TimeSpec timeSpec )
+{
+    setAxisTitle( axis, title );
+
+    QwtDateScaleDraw* scaleDraw = new QwtDateScaleDraw( timeSpec );
+    QwtDateScaleEngine* scaleEngine = new QwtDateScaleEngine( timeSpec );
+
+#if 0
+    if ( timeSpec == Qt::LocalTime )
+    {
+        scaleDraw->setTimeSpec( Qt::OffsetFromUTC );
+        scaleDraw->setUtcOffset( 10 );
+
+        scaleEngine->setTimeSpec( Qt::OffsetFromUTC );
+        scaleEngine->setUtcOffset( 10 );
+    }
+#endif
+    setAxisScaleDraw( axis, scaleDraw );
+    setAxisScaleEngine( axis, scaleEngine );
+}
+
+void Plot::applySettings( const Settings& settings )
+{
+    applyAxisSettings( QwtAxis::YLeft, settings );
+    applyAxisSettings( QwtAxis::YRight, settings );
+
+    replot();
+}
+
+void Plot::applyAxisSettings( int axis, const Settings& settings )
+{
+    QwtDateScaleEngine* scaleEngine =
+        static_cast< QwtDateScaleEngine* >( axisScaleEngine( axis ) );
+
+    scaleEngine->setMaxWeeks( settings.maxWeeks );
+    setAxisMaxMinor( axis, settings.maxMinorSteps );
+    setAxisMaxMajor( axis, settings.maxMajorSteps );
+
+
+    setAxisScale( axis, QwtDate::toDouble( settings.startDateTime ),
+        QwtDate::toDouble( settings.endDateTime ) );
+}
+
+#include "moc_Plot.cpp"