tempo-plotter Changeset - 81bc58c2b941 · protofusion repositories

Changeset - 81bc58c2b941

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value-tracker

0 9 0

Hasan Yavuz ÖZDERYA - 7 years ago 2018-09-23 12:49:48
hy@ozderya.net

find values from tracker x position, no drawing yet

9 files changed with 91 insertions and 18 deletions:

src/plot.cpp

src/plot.h

src/plotmanager.cpp

src/plotmanager.h

src/stream.h

src/streamchannel.cpp

src/streamchannel.h

src/zoomer.cpp

src/zoomer.h

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src/plot.cpp

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 /*
-  Copyright © 2017 Hasan Yavuz Özderya
+  Copyright © 2018 Hasan Yavuz Özderya
   This file is part of serialplot.
@@ @@ -31,9 +31,9 @@ @@
 static const int SYMBOL_SHOW_AT_WIDTH = 5;
 static const int SYMBOL_SIZE_MAX = 7;
 Plot::Plot(QWidget* parent) :
+Plot::Plot(const Stream* stream, QWidget* parent) :
     QwtPlot(parent),
     zoomer(this->canvas(), false),
+    zoomer(this->canvas(), stream, false),
     sZoomer(this, &zoomer)
+{
     isAutoScaled = true;

src/plot.h

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 /*
-  Copyright © 2017 Hasan Yavuz Özderya
+  Copyright © 2018 Hasan Yavuz Özderya
   This file is part of serialplot.
@@ @@ -47,7 +47,7 @@ public: @@
         ShowSymbolsHide
     };
     Plot(QWidget* parent = 0);
+    Plot(const Stream* stream, QWidget* parent = 0);
     ~Plot();
 public slots:

src/plotmanager.cpp

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@@ @@ -31,9 +31,9 @@ PlotManager::PlotManager(QWidget* plotAr @@
                          const Stream* stream, QObject* parent) :
     QObject(parent)
+{
     _stream = stream;
     construct(plotArea, menu);
     _stream = stream;
     if (_stream == NULL) return;
     if (_stream == nullptr) return;
     // connect to ChannelInfoModel
     infoModel = _stream->infoModel();
@@ @@ -62,6 +62,7 @@ PlotManager::PlotManager(QWidget* plotAr @@
                          Snapshot* snapshot, QObject *parent) :
     QObject(parent)
+{
     _stream = nullptr;
     construct(plotArea, menu);
     setNumOfSamples(snapshot->numSamples());
@@ @@ -305,7 +306,7 @@ void PlotManager::setupLayout(bool multi @@
 Plot* PlotManager::addPlotWidget()
+{
     auto plot = new Plot();
+    auto plot = new Plot(_stream);
     plotWidgets.append(plot);
     layout->addWidget(plot);

src/plotmanager.h

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@@ @@ -41,7 +41,7 @@ class PlotManager : public QObject @@
 public:
     explicit PlotManager(QWidget* plotArea, PlotMenu* menu,
-                         const Stream* stream = NULL,
+                         const Stream* stream = nullptr,
                          QObject *parent = 0);
     explicit PlotManager(QWidget* plotArea, PlotMenu* menu,
                          Snapshot* snapshot,
@@ @@ -82,7 +82,7 @@ private: @@
     QList<QwtPlotCurve*> curves;
     QList<Plot*> plotWidgets;
     Plot* emptyPlot;  ///< for displaying when all channels are hidden
-    const Stream* _stream;       ///< attached stream, can be `NULL`
+    const Stream* _stream;       ///< attached stream, can be `nullptr`
     const ChannelInfoModel* infoModel;
     bool isDemoShown;
     bool _autoScaled;

src/stream.h

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@@ @@ -51,9 +51,8 @@ public: @@
     Stream(unsigned nc = 0, bool x = false, unsigned ns = 0);
     ~Stream();
     // implementations for `Source`
     virtual bool hasX() const;
     virtual unsigned numChannels() const;
     bool hasX() const;
     unsigned numChannels() const;
     unsigned numSamples() const;
     const StreamChannel* channel(unsigned index) const;

src/streamchannel.cpp

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@@ @@ -17,6 +17,7 @@ @@
   along with serialplot.  If not, see <http://www.gnu.org/licenses/>.
 */
 #include <limits>
 #include "streamchannel.h"
 StreamChannel::StreamChannel(unsigned i, const FrameBuffer* x,
@@ @@ -42,3 +43,35 @@ const FrameBuffer* StreamChannel::yData( @@
 FrameBuffer* StreamChannel::yData() {return _y;}
 const ChannelInfoModel* StreamChannel::info() const {return _info;}
 void StreamChannel::setX(const FrameBuffer* x) {_x = x;};
 double StreamChannel::findValue(double x) const
+{
     int index = findIndex(x);
     if (index >= 0)
         return _y->sample(index);
     else
         return std::numeric_limits<double>::quiet_NaN();
+}
 int StreamChannel::findIndex(double x) const
+{
     // TODO: optimize, implement in `framebuffer`
     bool first = true;
     for (int i = _x->size()-1; i > 0; i--)
+    {
         double val = _x->sample(i);
         if (x >= val)
+        {
             // TODO: optional linear approx. method
             // check if previous sample (bigger one) is actually closer
             if (!first && (x - val) > (_x->sample(i + 1) - x))
+            {
                 ++i;
+            }
             return i;
+        }
         first = false;
+    }
     return -1;
+}

src/streamchannel.h

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@@ @@ -50,11 +50,17 @@ public: @@
     const ChannelInfoModel* info() const;
     void setX(const FrameBuffer* x);
     /// Returns sample value for closest X
     double findValue(double x) const;
 private:
     unsigned _index;
     const FrameBuffer* _x;
     FrameBuffer* _y;
     ChannelInfoModel* _info;
     /// Finds index of closest X in `xData`
     int findIndex(double x) const;
 };
 #endif // STREAMCHANNEL_H

src/zoomer.cpp

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 /*
-  Copyright © 2017 Hasan Yavuz Özderya
+  Copyright © 2018 Hasan Yavuz Özderya
   This file is part of serialplot.
@@ @@ -23,10 +23,11 @@ @@
 #include <QMouseEvent>
 Zoomer::Zoomer(QWidget* widget, bool doReplot) :
+Zoomer::Zoomer(QWidget* widget, const Stream* stream, bool doReplot) :
     ScrollZoomer(widget)
+{
     is_panning = false;
     _stream = stream;
     setTrackerMode(AlwaysOn);
@@ @@ -102,6 +103,31 @@ QRegion Zoomer::rubberBandMask() const @@
     return QRegion(r);
+}
 void Zoomer::drawTracker(QPainter* painter) const
+{
     ScrollZoomer::drawTracker(painter);
     auto x = invTransform(trackerPosition()).x();
     qDebug() <<  x;
     if (_stream != nullptr && _stream->numChannels())
+    {
         qDebug() << findValues(x);
+    }
     return;
+}
 QVector<double> Zoomer::findValues(double x) const
+{
     unsigned nc = _stream->numChannels();
     QVector<double> r(nc);
     for (unsigned ci = 0; ci < nc; ci++)
+    {
         auto chan = _stream->channel(ci);
         double val = chan->findValue(x);
         r[ci] = val;
+    }
     return r;
+}
 void Zoomer::widgetMousePressEvent(QMouseEvent* mouseEvent)
+{
     if (mouseEvent->modifiers() & Qt::ControlModifier)

src/zoomer.h

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 /*
-  Copyright © 2017 Hasan Yavuz Özderya
+  Copyright © 2018 Hasan Yavuz Özderya
   This file is part of serialplot.
@@ @@ -20,14 +20,17 @@ @@
 #ifndef ZOOMER_H
 #define ZOOMER_H
 #include <scrollzoomer.h>
 #include <QVector>
 #include "scrollzoomer.h"
 #include "stream.h"
 class Zoomer : public ScrollZoomer
+{
     Q_OBJECT
 public:
     Zoomer(QWidget *, bool doReplot=true);
+    Zoomer(QWidget*, const Stream* stream, bool doReplot=true);
     void zoom(int up);
     void zoom( const QRectF & );
@@ @@ -39,6 +42,8 @@ protected: @@
     QwtText trackerTextF(const QPointF &pos) const;
     /// Re-implemented for alpha background
     void drawRubberBand(QPainter* painter) const;
     /// Re-implemented to draw sample values
     void drawTracker(QPainter* painter) const;
     /// Re-implemented for alpha background (masking is basically disabled)
     QRegion rubberBandMask() const;
     /// Overloaded for panning
@@ @@ -51,6 +56,9 @@ protected: @@
 private:
     bool is_panning;
     QPointF pan_point;
     const Stream* _stream;
     QVector<double> findValues(double x) const;
 };
 #endif // ZOOMER_H

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