Paint the unresolved area to show the decode progress

[pulseview.git] / pv / view / decodetrace.cpp

diff --git a/pv/view/decodetrace.cpp b/pv/view/decodetrace.cpp
index b67c0f7abeb256d0ae472f456d878b9cca5c468c..beb83b1f20634febe91707867fca8ca0af93c77f 100644 (file)
--- a/pv/view/decodetrace.cpp
+++ b/pv/view/decodetrace.cpp
@@ -38,6 +38,8 @@ extern "C" {
 #include <pv/sigsession.h>
 #include <pv/data/decoderstack.h>
 #include <pv/data/decode/decoder.h>
+#include <pv/data/logic.h>
+#include <pv/data/logicsnapshot.h>
 #include <pv/view/logicsignal.h>
 #include <pv/view/view.h>
 #include <pv/view/decode/annotation.h>
@@ -58,6 +60,7 @@ const QColor DecodeTrace::DecodeColours[4] = {
 };
 
 const QColor DecodeTrace::ErrorBgColour = QColor(0xEF, 0x29, 0x29);
+const QColor DecodeTrace::NoDecodeColour = QColor(0x88, 0x8A, 0x85);
 
 DecodeTrace::DecodeTrace(pv::SigSession &session,
        boost::shared_ptr<pv::data::DecoderStack> decoder_stack, int index) :
@@ -93,6 +96,7 @@ void DecodeTrace::set_view(pv::view::View *view)
 
 void DecodeTrace::paint_back(QPainter &p, int left, int right)
 {
+       Trace::paint_back(p, left, right);
        paint_axis(p, get_y(), left, right);
 }
 
@@ -100,16 +104,6 @@ void DecodeTrace::paint_mid(QPainter &p, int left, int right)
 {
        using namespace pv::view::decode;
 
-       assert(_decoder_stack);
-       const QString err = _decoder_stack->error_message();
-       if (!err.isEmpty()) {
-               draw_error(p, err, left, right);
-               return;
-       }
-
-       assert(_view);
-       const int y = get_y();
-
        const double scale = _view->scale();
        assert(scale > 0);
 
@@ -123,13 +117,31 @@ void DecodeTrace::paint_mid(QPainter &p, int left, int right)
                _decoder_stack->get_start_time()) / scale;
        const double samples_per_pixel = samplerate * scale;
 
+       const int h = (_text_size.height() * 5) / 4;
+
+       assert(_decoder_stack);
+       const QString err = _decoder_stack->error_message();
+       if (!err.isEmpty())
+       {
+               draw_error(p, err, left, right);
+               draw_unresolved_period(p, h, left, right, samples_per_pixel,
+                       pixels_offset);
+               return;
+       }
+
+       assert(_view);
+       const int y = get_y();
+
        assert(_decoder_stack);
        vector< shared_ptr<Annotation> > annotations(_decoder_stack->annotations());
        BOOST_FOREACH(shared_ptr<Annotation> a, annotations) {
                assert(a);
-               a->paint(p, get_text_colour(), _text_size.height(),
-                       left, right, samples_per_pixel, pixels_offset, y);
+               a->paint(p, get_text_colour(), h, left, right,
+                       samples_per_pixel, pixels_offset, y);
        }
+
+       draw_unresolved_period(p, h, left, right,
+               samples_per_pixel, pixels_offset);
 }
 
 void DecodeTrace::populate_popup_form(QWidget *parent, QFormLayout *form)
@@ -219,6 +231,58 @@ void DecodeTrace::draw_error(QPainter &p, const QString &message,
        p.drawText(text_rect, message);
 }
 
+void DecodeTrace::draw_unresolved_period(QPainter &p, int h, int left,
+       int right, double samples_per_pixel, double pixels_offset) 
+{
+       using namespace pv::data;
+       using pv::data::decode::Decoder;
+
+       assert(_decoder_stack); 
+
+       shared_ptr<Logic> data;
+       shared_ptr<LogicSignal> logic_signal;
+
+       const list< shared_ptr<Decoder> > &stack = _decoder_stack->stack();
+
+       // We get the logic data of the first probe in the list.
+       // This works because we are currently assuming all
+       // LogicSignals have the same data/snapshot
+       BOOST_FOREACH (const shared_ptr<Decoder> &dec, stack)
+               if (dec && !dec->probes().empty() &&
+                       ((logic_signal = (*dec->probes().begin()).second)) &&
+                       ((data = logic_signal->data())))
+                       break;
+
+       if (!data || data->get_snapshots().empty())
+               return;
+
+       const shared_ptr<LogicSnapshot> snapshot =
+               data->get_snapshots().front();
+       assert(snapshot);
+       const int64_t sample_count = (int64_t)snapshot->get_sample_count();
+       if (sample_count == 0)
+               return;
+
+       const int64_t samples_decoded = _decoder_stack->samples_decoded();
+       if (sample_count == samples_decoded)
+               return;
+
+       const int y = get_y();
+       const double start = max(samples_decoded /
+               samples_per_pixel - pixels_offset, left - 1.0);
+       const double end = min(sample_count / samples_per_pixel -
+               pixels_offset, right + 1.0);
+       const QRectF no_decode_rect(start, y - h/2 + 0.5, end - start, h);
+
+       p.setPen(QPen(Qt::NoPen));
+       p.setBrush(Qt::white);
+       p.drawRect(no_decode_rect);
+
+       p.setPen(NoDecodeColour);
+       p.setBrush(QBrush(NoDecodeColour, Qt::Dense6Pattern));
+       p.drawRect(no_decode_rect);
+}
+
 void DecodeTrace::create_decoder_form(int index,
        shared_ptr<data::decode::Decoder> &dec, QWidget *parent,
        QFormLayout *form)