Make error handling generic improve math error detail

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

diff --git a/pv/data/signalbase.hpp b/pv/data/signalbase.hpp
index 89bfc25298369bf1431e3fa05f325bba1abd0e74..a55b3fc2d3fa458c7d97f522d2e503674d421ecc 100644 (file)
--- a/pv/data/signalbase.hpp
+++ b/pv/data/signalbase.hpp
@@ -87,6 +87,7 @@ private:
 class SignalBase : public QObject, public enable_shared_from_this<SignalBase>
 {
        Q_OBJECT
+       Q_PROPERTY(QString error_message READ get_error_message)
 
 public:
        enum ChannelType {
@@ -225,6 +226,11 @@ public:
         */
        QColor bgcolor() const;
 
+       /**
+        * Returns the current error message text.
+        */
+       virtual QString get_error_message() const;
+
        /**
         * Sets the internal data object.
         */
@@ -346,7 +352,12 @@ public:
 
        void start_conversion(bool delayed_start=false);
 
+protected:
+       virtual void set_error_message(QString msg);
+
 private:
+       void stop_conversion();
+
        bool conversion_is_a2l() const;
 
        uint8_t convert_a2l_threshold(float threshold, float value);
@@ -359,19 +370,14 @@ private:
                shared_ptr<LogicSegment> lsegment);
        void conversion_thread_proc();
 
-       void stop_conversion();
-
 Q_SIGNALS:
        void enabled_changed(const bool &value);
-
        void name_changed(const QString &name);
-
        void color_changed(const QColor &color);
-
+       void error_message_changed(const QString &msg);
        void conversion_type_changed(const ConversionType t);
 
        void samples_cleared();
-
        void samples_added(uint64_t segment_id, uint64_t start_sample,
                uint64_t end_sample);
 
@@ -409,6 +415,8 @@ protected:
        QString internal_name_, name_;
        QColor color_, bgcolor_;
        unsigned int index_;
+
+       QString error_message_;
 };
 
 } // namespace data