tempo-plotter Changeset - 969bab18103b · protofusion repositories

Changeset - 969bab18103b

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value-tracker

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Hasan Yavuz ÖZDERYA - 7 years ago 2018-10-01 15:08:43
hy@ozderya.net

don't display values when zooming (selecting rectangle)

1 file changed with 14 insertions and 5 deletions:

src/zoomer.cpp

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src/zoomer.cpp

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@@ @@ -83,54 +83,56 @@ QwtText Zoomer::trackerTextF(const QPoin @@
 void Zoomer::drawRubberBand(QPainter* painter) const
+{
     const double FILL_ALPHA = 0.2;
     QColor color = painter->pen().color();
     color.setAlphaF(FILL_ALPHA);
     painter->setBrush(color);
     ScrollZoomer::drawRubberBand(painter);
+}
 QRegion Zoomer::rubberBandMask() const
+{
     const QPolygon pa = selection();
     if (pa.count() < 2)
+    {
         return QRegion();
+    }
     const QRect r = QRect(pa.first(), pa.last()).normalized().adjusted(0, 0, 1, 1);
     return QRegion(r);
+}
 void Zoomer::drawTracker(QPainter* painter) const
+{
     // ScrollZoomer::drawTracker(painter);
     if (_stream != nullptr && _stream->numChannels())
     if (isActive())
+    {
         QwtPlotZoomer::drawTracker(painter);
+    }
     else if (_stream != nullptr && _stream->numChannels())
+    {
         drawValues(painter);
+    }
     return;
+}
 void Zoomer::drawValues(QPainter* painter) const
+{
     painter->save();
     double x = invTransform(trackerPosition()).x();
     auto values = findValues(x);
     // draw vertical line
     auto linePen = QPen(Qt::DotLine);
     linePen.setColor(Qt::white);
     painter->setPen(linePen);
     const QRect pRect = pickArea().boundingRect().toRect();
     int px = trackerPosition().x();
     painter->drawLine(px, pRect.top(), px, pRect.bottom());
     // draw sample values
     for (int ci = 0; ci < values.size(); ci++)
+    {
         double val = values[ci];
         if (!std::isnan(val))
+        {
             auto p = transform(QPointF(x, val));
@@ @@ -142,50 +144,57 @@ void Zoomer::drawValues(QPainter* painte @@
             painter->setPen(Qt::white);
             painter->drawText(p, QString("%1").arg(val));
+        }
+    }
     painter->restore();
+}
 QVector<double> Zoomer::findValues(double x) const
+{
     // TODO: process only channel(s) of this plot
     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;
+}
 QRect Zoomer::trackerRect(const QFont& font) const
+{
     // TODO: optimize tracker area for masking instead of returning whole plot size
     return pickArea().boundingRect().toRect();
     if (isActive())
+    {
         return QwtPlotZoomer::trackerRect(font);
+    }
     else
+    {
         // TODO: optimize tracker area for masking instead of returning whole plot size
         return pickArea().boundingRect().toRect();
+    }
+}
 void Zoomer::widgetMousePressEvent(QMouseEvent* mouseEvent)
+{
     if (mouseEvent->modifiers() & Qt::ControlModifier)
+    {
         is_panning = true;
         parentWidget()->setCursor(Qt::ClosedHandCursor);
         pan_point = invTransform(mouseEvent->pos());
+    }
     else
+    {
         ScrollZoomer::widgetMousePressEvent(mouseEvent);
+    }
+}
 void Zoomer::widgetMouseMoveEvent(QMouseEvent* mouseEvent)
+{
     if (is_panning)
+    {
         auto cur_point = invTransform(mouseEvent->pos());
         auto delta = cur_point - pan_point;
         moveBy(-delta.x(), -delta.y());
         pan_point = invTransform(mouseEvent->pos());

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