Add segment display mode UI controls and some related changes

[pulseview.git] / pv / views / trace / view.cpp

diff --git a/pv/views/trace/view.cpp b/pv/views/trace/view.cpp
index e26e8fc2582a8a45b57f41d3abbf2d72940ed6f7..156b3eef30276515ebbb59880cffbf3e9a37ccf1 100644 (file)
--- a/pv/views/trace/view.cpp
+++ b/pv/views/trace/view.cpp
@@ -229,6 +229,9 @@ View::View(Session &session, bool is_main_view, QWidget *parent) :
 
        // Update the zoom state
        calculate_tick_spacing();
+
+       // Make sure the standard bar's segment selector is in sync
+       set_segment_display_mode(segment_display_mode_);
 }
 
 Session& View::session()
@@ -258,6 +261,7 @@ void View::add_signal(const shared_ptr<Signal> signal)
        signals_.insert(signal);
 
        signal->set_segment_display_mode(segment_display_mode_);
+       signal->set_current_segment(current_segment_);
 
        connect(signal->base().get(), SIGNAL(name_changed(const QString&)),
                this, SLOT(on_signal_name_changed()));
@@ -276,6 +280,7 @@ void View::add_decode_signal(shared_ptr<data::DecodeSignal> signal)
        decode_traces_.push_back(d);
 
        d->set_segment_display_mode(segment_display_mode_);
+       d->set_current_segment(current_segment_);
 
        connect(signal.get(), SIGNAL(name_changed(const QString&)),
                this, SLOT(on_signal_name_changed()));
@@ -319,6 +324,7 @@ void View::save_settings(QSettings &settings) const
                scrollarea_->verticalScrollBar()->sliderPosition());
 
        settings.setValue("splitter_state", splitter_->saveState());
+       settings.setValue("segment_display_mode", segment_display_mode_);
 
        stringstream ss;
        boost::archive::text_oarchive oa(ss);
@@ -354,6 +360,10 @@ void View::restore_settings(QSettings &settings)
        if (settings.contains("splitter_state"))
                splitter_->restoreState(settings.value("splitter_state").toByteArray());
 
+       if (settings.contains("segment_display_mode"))
+               set_segment_display_mode(
+                       (Trace::SegmentDisplayMode)(settings.value("segment_display_mode").toInt()));
+
        for (shared_ptr<Signal> signal : signals_) {
                settings.beginGroup(signal->base()->internal_name());
                signal->restore_settings(settings);
@@ -431,6 +441,11 @@ unsigned int View::depth() const
        return 0;
 }
 
+uint32_t View::current_segment() const
+{
+       return current_segment_;
+}
+
 pv::util::SIPrefix View::tick_prefix() const
 {
        return tick_prefix_;
@@ -483,24 +498,74 @@ void View::set_time_unit(pv::util::TimeUnit time_unit)
        }
 }
 
+void View::set_current_segment(uint32_t segment_id)
+{
+       current_segment_ = segment_id;
+
+       for (shared_ptr<Signal> signal : signals_)
+               signal->set_current_segment(current_segment_);
+       for (shared_ptr<DecodeTrace> dt : decode_traces_)
+               dt->set_current_segment(current_segment_);
+
+       viewport_->update();
+
+       segment_changed(segment_id);
+}
+
 bool View::segment_is_selectable() const
 {
        return segment_selectable_;
 }
 
+Trace::SegmentDisplayMode View::segment_display_mode() const
+{
+       return segment_display_mode_;
+}
+
 void View::set_segment_display_mode(Trace::SegmentDisplayMode mode)
 {
+       segment_display_mode_ = mode;
+
        for (shared_ptr<Signal> signal : signals_)
                signal->set_segment_display_mode(mode);
 
-       viewport_->update();
+       uint32_t last_segment = session_.get_segment_count() - 1;
+
+       switch (mode) {
+       case Trace::ShowLastSegmentOnly:
+               if (current_segment_ != last_segment)
+                       set_current_segment(last_segment);
+               break;
+
+       case Trace::ShowLastCompleteSegmentOnly:
+               // Do nothing if we only have one segment so far
+               if (last_segment > 0) {
+                       // If the last segment isn't complete, the previous one must be
+                       uint32_t segment_id =
+                               (session_.all_segments_complete(last_segment)) ?
+                               last_segment : last_segment - 1;
+
+                       if (current_segment_ != segment_id)
+                               set_current_segment(segment_id);
+               }
+               break;
+
+       case Trace::ShowSingleSegmentOnly:
+       case Trace::ShowAllSegments:
+       case Trace::ShowAccumulatedIntensity:
+       default:
+               // Current segment remains as-is
+               break;
+       }
 
        segment_selectable_ = true;
 
-       if (mode == Trace::ShowSingleSegmentOnly)
+       if ((mode == Trace::ShowAllSegments) || (mode == Trace::ShowAccumulatedIntensity))
                segment_selectable_ = false;
 
-       segment_display_mode_changed(segment_selectable_);
+       viewport_->update();
+
+       segment_display_mode_changed((int)mode, segment_selectable_);
 }
 
 void View::zoom(double steps)
@@ -1379,6 +1444,10 @@ void View::capture_state_updated(int state)
 
                // Enable sticky scrolling if the setting is enabled
                sticky_scrolling_ = settings.value(GlobalSettings::Key_View_StickyScrolling).toBool();
+
+               // Reset all traces to segment 0
+               current_segment_ = 0;
+               set_current_segment(current_segment_);
        }
 
        if (state == Session::Stopped) {
@@ -1412,7 +1481,11 @@ void View::capture_state_updated(int state)
 void View::on_new_segment(int new_segment_id)
 {
        on_segment_changed(new_segment_id);
-       segment_changed(new_segment_id);
+}
+
+void View::on_segment_completed(int segment_id)
+{
+       on_segment_changed(segment_id);
 }
 
 void View::on_segment_changed(int segment)
@@ -1420,10 +1493,13 @@ void View::on_segment_changed(int segment)
        switch (segment_display_mode_) {
        case Trace::ShowLastSegmentOnly:
        case Trace::ShowSingleSegmentOnly:
-               current_segment_ = segment - 1;
-               for (shared_ptr<Signal> signal : signals_)
-                       signal->set_current_segment(current_segment_);
-               viewport_->update();
+               set_current_segment(segment);
+               break;
+
+       case Trace::ShowLastCompleteSegmentOnly:
+               // Only update if all segments are complete
+               if (session_.all_segments_complete(segment))
+                       set_current_segment(segment);
                break;
 
        case Trace::ShowAllSegments: