tempo-plotter Changeset - e6427508f520 · protofusion repositories

Changeset - e6427508f520

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value-tracker

0 2 0

Hasan Yavuz ÖZDERYA - 7 years ago 2018-10-01 15:39:39
hy@ozderya.net

calculate smaller trackerrect for value tracker

2 files changed with 19 insertions and 3 deletions:

src/zoomer.cpp

src/zoomer.h

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src/zoomer.cpp

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@@ @@ -18,12 +18,15 @@ @@
 */
 #include "zoomer.h"
 #include <qwt_plot.h>
 #include <QPen>
 #include <QMouseEvent>
 #include <QtMath>
 static const int VALUE_POINT_DIAM = 4;
 Zoomer::Zoomer(QWidget* widget, const Stream* stream, bool doReplot) :
     ScrollZoomer(widget)
+{
     is_panning = false;
     _stream = stream;
@@ @@ -136,13 +139,13 @@ void Zoomer::drawValues(QPainter* painte @@
         if (!std::isnan(val))
+        {
             auto p = transform(QPointF(x, val));
             painter->setBrush(_stream->channel(ci)->color());
             painter->setPen(Qt::NoPen);
-            painter->drawEllipse(p, 4, 4);
+            painter->drawEllipse(p, VALUE_POINT_DIAM, VALUE_POINT_DIAM);
             painter->setPen(Qt::white);
             painter->drawText(p, QString("%1").arg(val));
+        }
+    }
@@ @@ -168,15 +171,25 @@ QRect Zoomer::trackerRect(const QFont& f @@
     if (isActive())
+    {
         return QwtPlotZoomer::trackerRect(font);
+    }
     else
+    {
         // TODO: optimize tracker area for masking instead of returning whole plot size
         return pickArea().boundingRect().toRect();
         return valueTrackerRect(font);
+    }
+    }
 QRect Zoomer::valueTrackerRect(const QFont& font) const
+{
     // TODO: consider using actual tracker values for width calculation
     const int textWidth = qCeil(QwtText("-8.8888888").textSize(font).width());
     const int width = textWidth + VALUE_POINT_DIAM;
     const int x = trackerPosition().x() - VALUE_POINT_DIAM;
     const auto pickRect = pickArea().boundingRect();
     return QRect(x, pickRect.y(), width, pickRect.height());
+}
 void Zoomer::widgetMousePressEvent(QMouseEvent* mouseEvent)
+{
     if (mouseEvent->modifiers() & Qt::ControlModifier)
+    {

src/zoomer.h

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@@ @@ -18,12 +18,13 @@ @@
 */
 #ifndef ZOOMER_H
 #define ZOOMER_H
 #include <QVector>
 #include <QRect>
 #include "scrollzoomer.h"
 #include "stream.h"
 class Zoomer : public ScrollZoomer
+{
@@ @@ -61,9 +62,11 @@ private: @@
     const Stream* _stream;
     /// Draw sample values
     void drawValues(QPainter* painter) const;
     /// Find sample values for given X value
     QVector<double> findValues(double x) const;
     /// Returns trackerRect for value tracker
     QRect valueTrackerRect(const QFont& font) const;
 };
 #endif // ZOOMER_H

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