tempo-plotter Changeset - 1258272f91d8 · protofusion repositories

Changeset - 1258272f91d8

Parent rev.

Child rev.

[Not reviewed]

show-symbols

0 2 0

Hasan Yavuz ÖZDERYA - 9 years ago 2016-08-20 10:21:15
hy@ozderya.net

automatically show symbols when zoomed

2 files changed with 64 insertions and 1 deletions:

src/plot.cpp

src/plot.h

0 comments (0 inline, 0 general)

src/plot.cpp

➞

Show inline comments

@@ @@ -11,41 +11,46 @@ @@
   serialplot is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   You should have received a copy of the GNU General Public License
   along with serialplot.  If not, see <http://www.gnu.org/licenses/>.
 */
 #include <QRectF>
 #include <QKeySequence>
 #include <QColor>
 #include <qwt_symbol.h>
 #include <qwt_plot_curve.h>
 #include <math.h>
 #include "plot.h"
 #include "utils.h"
 static const int SYMBOL_SIZE = 5;
 static const int SYMBOL_SHOW_AT_WIDTH = 15;
 Plot::Plot(QWidget* parent) :
     QwtPlot(parent),
     zoomer(this->canvas(), false),
     sZoomer(this, &zoomer),
     showGridAction("Grid", this),
     showMinorGridAction("Minor Grid", this),
     unzoomAction("Unzoom", this),
     darkBackgroundAction("Dark Background", this),
     showLegendAction("Legend", this)
+{
     isAutoScaled = true;
     isSymbolsOn = true;
     QObject::connect(&zoomer, &Zoomer::unzoomed, this, &Plot::unzoomed);
     zoomer.setZoomBase();
     grid.attach(this);
     legend.attach(this);
     showGrid(false);
     darkBackground(false);
     showGridAction.setToolTip("Show Grid");
     showMinorGridAction.setToolTip("Show Minor Grid");
@@ @@ -71,24 +76,36 @@ Plot::Plot(QWidget* parent) : @@
     connect(&showGridAction, SELECT<bool>::OVERLOAD_OF(&QAction::triggered),
             this, &Plot::showGrid);
     connect(&showGridAction, SELECT<bool>::OVERLOAD_OF(&QAction::triggered),
             &showMinorGridAction, &QAction::setEnabled);
     connect(&showMinorGridAction, SELECT<bool>::OVERLOAD_OF(&QAction::triggered),
             this, &Plot::showMinorGrid);
     connect(&unzoomAction, &QAction::triggered, this, &Plot::unzoom);
     connect(&darkBackgroundAction, SELECT<bool>::OVERLOAD_OF(&QAction::triggered),
             this, &Plot::darkBackground);
     connect(&showLegendAction, SELECT<bool>::OVERLOAD_OF(&QAction::triggered),
             [this](bool enabled){legend.setVisible(enabled); replot();});
     connect(&zoomer, &QwtPlotZoomer::zoomed,
             [this](const QRectF &rect)
+            {
                 onXScaleChanged();
             });
     connect(this, &QwtPlot::itemAttached,
             [this](QwtPlotItem *plotItem, bool on)
+            {
                 if (isSymbolsOn) updateSymbols();
             });
     snapshotOverlay = NULL;
+}
 Plot::~Plot()
+{
     if (snapshotOverlay != NULL) delete snapshotOverlay;
+}
 void Plot::setAxis(bool autoScaled, double yAxisMin, double yAxisMax)
+{
     this->isAutoScaled = autoScaled;
@@ @@ -221,12 +238,54 @@ void Plot::flashSnapshotOverlay() @@
+    {
         color = QColor(Qt::black);
+    }
     snapshotOverlay = new PlotSnapshotOverlay(this->canvas(), color);
     connect(snapshotOverlay, &PlotSnapshotOverlay::done,
             [this]()
+            {
                 delete snapshotOverlay;
                 snapshotOverlay = NULL;
             });
+}
 void Plot::onXScaleChanged()
+{
     auto sw = axisWidget(QwtPlot::xBottom);
     auto paintDist = sw->scaleDraw()->scaleMap().pDist();
     auto scaleDist = sw->scaleDraw()->scaleMap().sDist();
     double symDisPx = paintDist / scaleDist;
     if (symDisPx > SYMBOL_SHOW_AT_WIDTH)
+    {
         isSymbolsOn = true;
+    }
     else
+    {
         isSymbolsOn = false;
+    }
     updateSymbols();
+}
 void Plot::updateSymbols()
+{
     const QwtPlotItemList curves = itemList( QwtPlotItem::Rtti_PlotCurve );
     if (curves.size() > 0)
+    {
         for (unsigned i = 0; i < curves.size(); i++)
+        {
             QwtSymbol* symbol = NULL;
             QwtPlotCurve* curve = static_cast<QwtPlotCurve*>(curves[i]);
             qDebug() << i;
             if (isSymbolsOn)
+            {
                 symbol = new QwtSymbol(QwtSymbol::Ellipse,
                                        QBrush(Qt::white),
                                        curve->pen(),
                                        QSize(SYMBOL_SIZE, SYMBOL_SIZE));
+            }
             curve->setSymbol(symbol);
+        }
+    }
+}

src/plot.h

➞

Show inline comments

@@ @@ -38,40 +38,44 @@ class Plot : public QwtPlot @@
 public:
     Plot(QWidget* parent = 0);
     ~Plot();
     QList<QAction*> menuActions();
     static QColor makeColor(unsigned int channelIndex);
 private:
     bool isAutoScaled;
     double yMin, yMax;
     bool isSymbolsOn;
     Zoomer zoomer;
     ScaleZoomer sZoomer;
     QwtPlotGrid grid;
     PlotSnapshotOverlay* snapshotOverlay;
     QwtPlotLegendItem legend;
     QAction showGridAction;
     QAction showMinorGridAction;
     QAction unzoomAction;
     QAction darkBackgroundAction;
     QAction showLegendAction;
     /// update the display of symbols depending on `isSymbolsOn`
     void updateSymbols();
     void resetAxes();
 public slots:
     void showGrid(bool show = true);
     void showMinorGrid(bool show = true);
     void unzoom();
     void darkBackground(bool enabled = true);
     void setAxis(bool autoScaled, double yMin = 0, double yMax = 1);
     void flashSnapshotOverlay();
 private slots:
     void unzoomed();
     void onXScaleChanged();
 };
 #endif // PLOT_H

0 comments (0 inline, 0 general)