LogicSignal: Added trigger markers

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

diff --git a/pv/view/logicsignal.cpp b/pv/view/logicsignal.cpp
index 4b07c568d90268dcccb5b5c25c251e07902c45ff..22b39bbbcfaa49f907696c005fb991508e3cb3eb 100644 (file)
--- a/pv/view/logicsignal.cpp
+++ b/pv/view/logicsignal.cpp
@@ -81,6 +81,22 @@ const QColor LogicSignal::SignalColours[10] = {
        QColor(0xEE, 0xEE, 0xEC),       // White
 };
 
+QColor LogicSignal::TriggerMarkerBackgroundColour = QColor(0xED, 0xD4, 0x00);
+const int LogicSignal::TriggerMarkerPadding = 2;
+const char* LogicSignal::TriggerMarkerIcons[8] = {
+       nullptr,
+       ":/icons/trigger-marker-low.svg",
+       ":/icons/trigger-marker-high.svg",
+       ":/icons/trigger-marker-rising.svg",
+       ":/icons/trigger-marker-falling.svg",
+       ":/icons/trigger-marker-change.svg",
+       nullptr,
+       nullptr
+};
+
+QCache<QString, const QIcon> LogicSignal::icon_cache_;
+QCache<QString, const QPixmap> LogicSignal::pixmap_cache_;
+
 LogicSignal::LogicSignal(
        pv::Session &session,
        shared_ptr<Device> device,
@@ -220,6 +236,45 @@ void LogicSignal::paint_mid(QPainter &p, int left, int right)
        delete[] cap_lines;
 }
 
+void LogicSignal::paint_fore(QPainter &p, int left, int right)
+{
+       (void)left;
+
+       // Draw the trigger marker
+       if (!trigger_match_)
+               return;
+
+       const int y = get_visual_y();
+       const vector<int32_t> trig_types = get_trigger_types();
+       for (int32_t type_id : trig_types) {
+               const TriggerMatchType *const type =
+                       TriggerMatchType::get(type_id);
+               if (trigger_match_ != type || type_id < 0 ||
+                       (size_t)type_id >= countof(TriggerMarkerIcons) ||
+                       !TriggerMarkerIcons[type_id])
+                       continue;
+
+               const QPixmap *const pixmap = get_pixmap(
+                       TriggerMarkerIcons[type_id]);
+               if (!pixmap)
+                       continue;
+
+               const int pad = TriggerMarkerPadding;
+               const QSize size = pixmap->size();
+               const QPoint point(
+                       right - size.width() - pad * 2,
+                       y - (SignalHeight + size.height()) / 2);
+
+               p.setPen(QPen(Qt::NoPen));
+               p.setBrush(TriggerMarkerBackgroundColour);
+               p.drawRoundedRect(QRect(point, size).adjusted(
+                       -pad, -pad, pad, pad), pad, pad);
+               p.drawPixmap(point, *pixmap);
+
+               break;
+       }
+}
+
 void LogicSignal::paint_caps(QPainter &p, QLineF *const lines,
        vector< pair<int64_t, bool> > &edges, bool level,
        double samples_per_pixel, double pixels_offset, float x_offset,
@@ -378,6 +433,9 @@ void LogicSignal::modify_trigger()
 
        session_.session()->set_trigger(
                new_trigger->stages().empty() ? nullptr : new_trigger);
+
+       if (owner_)
+               owner_->appearance_changed(false, true);
 }
 
 const QIcon* LogicSignal::get_icon(const char *path)
@@ -391,6 +449,17 @@ const QIcon* LogicSignal::get_icon(const char *path)
        return icon;
 }
 
+const QPixmap* LogicSignal::get_pixmap(const char *path)
+{
+       const QPixmap *pixmap = pixmap_cache_.take(path);
+       if (!pixmap) {
+               pixmap = new QPixmap(path);
+               pixmap_cache_.insert(path, pixmap);
+       }
+
+       return pixmap;
+}
+
 void LogicSignal::on_trigger()
 {
        QAction *action;