SignalBase: Make sure an invalid color isn't shown as "white"

[pulseview.git] / pv / data / signalbase.cpp

diff --git a/pv/data/signalbase.cpp b/pv/data/signalbase.cpp
index 791094036ddcb23511329a9922c67f1774fa0268..78633de977706ac5947969f1138fb340562a170a 100644 (file)
--- a/pv/data/signalbase.cpp
+++ b/pv/data/signalbase.cpp
@@ -265,6 +265,26 @@ bool SignalBase::has_samples() const
        return result;
 }
 
+double SignalBase::get_samplerate() const
+{
+       if (channel_type_ == AnalogChannel)
+       {
+               shared_ptr<Analog> data = dynamic_pointer_cast<Analog>(data_);
+               if (data)
+                       return data->get_samplerate();
+       }
+
+       if (channel_type_ == LogicChannel)
+       {
+               shared_ptr<Logic> data = dynamic_pointer_cast<Logic>(data_);
+               if (data)
+                       return data->get_samplerate();
+       }
+
+       // Default samplerate is 1 Hz
+       return 1.0;
+}
+
 SignalBase::ConversionType SignalBase::get_conversion_type() const
 {
        return conversion_type_;
@@ -430,12 +450,12 @@ void SignalBase::save_settings(QSettings &settings) const
 {
        settings.setValue("name", name());
        settings.setValue("enabled", enabled());
-       settings.setValue("color", color());
+       settings.setValue("color", color().rgba());
        settings.setValue("conversion_type", (int)conversion_type_);
 
        settings.setValue("conv_options", (int)(conversion_options_.size()));
        int i = 0;
-       for (auto kvp : conversion_options_) {
+       for (auto& kvp : conversion_options_) {
                settings.setValue(QString("conv_option%1_key").arg(i), kvp.first);
                settings.setValue(QString("conv_option%1_value").arg(i), kvp.second);
                i++;
@@ -450,8 +470,19 @@ void SignalBase::restore_settings(QSettings &settings)
        if (settings.contains("enabled"))
                set_enabled(settings.value("enabled").toBool());
 
-       if (settings.contains("color"))
-               set_color(settings.value("color").value<QColor>());
+       if (settings.contains("color")) {
+               QVariant value = settings.value("color");
+
+               // Workaround for Qt QColor serialization bug on OSX
+               if ((QMetaType::Type)(value.type()) == QMetaType::QColor)
+                       set_color(value.value<QColor>());
+               else
+                       set_color(QColor::fromRgba(value.value<uint32_t>()));
+
+               // A color with an alpha value of 0 makes the signal marker invisible
+               if (color() == QColor(0, 0, 0, 0))
+                       set_color(Qt::gray);
+       }
 
        if (settings.contains("conversion_type"))
                set_conversion_type((ConversionType)settings.value("conversion_type").toInt());