Added missing include for boost::hash_combine

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

diff --git a/pv/view/decodetrace.cpp b/pv/view/decodetrace.cpp
index ddf006ce9139e6c35792ffb128360a0e7ee89705..9f8306ea8ef9c7f0983e99cb321978fdc7eb2bf9 100644 (file)
--- a/pv/view/decodetrace.cpp
+++ b/pv/view/decodetrace.cpp
@@ -25,6 +25,7 @@ extern "C" {
 #include <extdef.h>
 
 #include <boost/foreach.hpp>
+#include <boost/functional/hash.hpp>
 
 #include <QAction>
 #include <QApplication>
@@ -68,6 +69,7 @@ const QColor DecodeTrace::DecodeColours[4] = {
 const QColor DecodeTrace::ErrorBgColour = QColor(0xEF, 0x29, 0x29);
 const QColor DecodeTrace::NoDecodeColour = QColor(0x88, 0x8A, 0x85);
 
+const int DecodeTrace::ArrowSize = 4;
 const double DecodeTrace::EndCapWidth = 5;
 const int DecodeTrace::DrawPadding = 100;
 
@@ -161,6 +163,8 @@ void DecodeTrace::paint_mid(QPainter &p, int left, int right)
 
        double samplerate = _decoder_stack->samplerate();
 
+       _cur_row_headings.clear();
+
        // Show sample rate as 1Hz when it is unknown
        if (samplerate == 0.0)
                samplerate = 1.0;
@@ -216,6 +220,8 @@ void DecodeTrace::paint_mid(QPainter &p, int left, int right)
                                        samples_per_pixel, pixels_offset, y,
                                        base_colour);
                        y += row_height;
+
+                       _cur_row_headings.push_back(row.title());
                }
        }
 
@@ -224,6 +230,52 @@ void DecodeTrace::paint_mid(QPainter &p, int left, int right)
                samples_per_pixel, pixels_offset);
 }
 
+void DecodeTrace::paint_fore(QPainter &p, int left, int right)
+{
+       using namespace pv::data::decode;
+
+       (void)right;
+
+       QFontMetrics m(QApplication::font());
+       const int text_height =  m.boundingRect(QRect(), 0, "Tg").height();
+       const int row_height = (text_height * 6) / 4;
+
+       for (size_t i = 0; i < _cur_row_headings.size(); i++)
+       {
+               const int y = i * row_height + get_y();
+
+               p.setPen(QPen(Qt::NoPen));
+               p.setBrush(QApplication::palette().brush(QPalette::WindowText));
+
+               if (i != 0)
+               {
+                       const QPointF points[] = {
+                               QPointF(left, y - ArrowSize),
+                               QPointF(left + ArrowSize, y),
+                               QPointF(left, y + ArrowSize)
+                       };
+                       p.drawPolygon(points, countof(points));
+               }
+
+               const QRect r(left + ArrowSize * 2, y - row_height / 2,
+                       right - left, row_height);
+               const QString h(_cur_row_headings[i]);
+               const int f = Qt::AlignLeft | Qt::AlignVCenter |
+                       Qt::TextDontClip;
+
+               // Draw the outline
+               p.setPen(QApplication::palette().color(QPalette::Base));
+               for (int dx = -1; dx <= 1; dx++)
+                       for (int dy = -1; dy <= 1; dy++)
+                               if (dx != 0 && dy != 0)
+                                       p.drawText(r.translated(dx, dy), f, h);
+
+               // Draw the text
+               p.setPen(QApplication::palette().color(QPalette::WindowText));
+               p.drawText(r, f, h);
+       }
+}
+
 void DecodeTrace::populate_popup_form(QWidget *parent, QFormLayout *form)
 {
        using pv::data::decode::Decoder;