From: Joel Holdsworth <redacted>
Date: Tue, 5 Jun 2012 08:19:43 +0000 (+0100)
Subject: Parse logic signals
X-Git-Tag: pulseview-0.1.0~346
X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=commitdiff_plain;h=e3f65ace22c6bcd371967302f8d01d0769e3a23f

Parse logic signals
---

diff --git a/logicsignal.cpp b/logicsignal.cpp
index 48a95701..7a86b7c6 100644
--- a/logicsignal.cpp
+++ b/logicsignal.cpp
@@ -27,3 +27,13 @@ LogicSignal::LogicSignal(QString name, boost::shared_ptr<SignalData> data,
 {
 	assert(_probe_index >= 0);
 }
+
+void LogicSignal::paint(QGLWidget &widget, const QRect &rect)
+{
+	glColor3f(1,0,0);
+	glBegin(GL_POLYGON);
+	glVertex2f(rect.left(), rect.top());
+	glVertex2f(rect.right(), rect.top());
+	glVertex2f(rect.right(), rect.bottom());
+	glEnd();
+}
diff --git a/logicsignal.h b/logicsignal.h
index 9daf6500..91c70ab2 100644
--- a/logicsignal.h
+++ b/logicsignal.h
@@ -30,6 +30,8 @@ public:
 	LogicSignal(QString name, boost::shared_ptr<SignalData> data,
 		int probe_index);
 
+	void paint(QGLWidget &widget, const QRect &rect);
+
 private:
 	int _probe_index;
 };
diff --git a/signal.h b/signal.h
index 47e1dc91..ee051dca 100644
--- a/signal.h
+++ b/signal.h
@@ -19,7 +19,11 @@
  */
 
 #include <boost/shared_ptr.hpp>
+
+#include <QGLWidget>
+#include <QRect>
 #include <QString>
+
 #include <stdint.h>
 
 class SignalData;
@@ -32,6 +36,8 @@ protected:
 public:
 	QString get_name() const;
 
+	virtual void paint(QGLWidget &widget, const QRect &rect) = 0;
+
 protected:
 	QString _name;
 	boost::shared_ptr<SignalData> _data;
diff --git a/sigsession.cpp b/sigsession.cpp
index 9b9798e0..e6288e7c 100644
--- a/sigsession.cpp
+++ b/sigsession.cpp
@@ -22,12 +22,14 @@
 
 #include "logicdata.h"
 #include "logicdatasnapshot.h"
+#include "logicsignal.h"
 
 #include <QDebug>
 
 #include <assert.h>
 
 using namespace boost;
+using namespace std;
 
 // TODO: This should not be necessary
 SigSession* SigSession::session = NULL;
@@ -55,6 +57,11 @@ void SigSession::loadFile(const std::string &name)
 	}
 }
 
+vector< shared_ptr<Signal> >& SigSession::get_signals()
+{
+	return _signals;
+}
+
 void SigSession::dataFeedIn(const struct sr_dev_inst *sdi,
 	struct sr_datafeed_packet *packet)
 {
@@ -63,19 +70,38 @@ void SigSession::dataFeedIn(const struct sr_dev_inst *sdi,
 
 	switch (packet->type) {
 	case SR_DF_HEADER:
+		_signals.clear();
 		break;
 
 	case SR_DF_META_LOGIC:
 		{
 			assert(packet->payload);
 
-			_logic_data.reset(new LogicData(
-				*(sr_datafeed_meta_logic*)packet->payload));
+			const sr_datafeed_meta_logic &meta_logic =
+				*(sr_datafeed_meta_logic*)packet->payload;
 
+			// Create an empty LogiData for coming data snapshots
+			_logic_data.reset(new LogicData(meta_logic));
 			assert(_logic_data);
 			if(!_logic_data)
 				break;
 
+			// Add the signals
+			for (int i = 0; i < meta_logic.num_probes; i++)
+			{
+				const sr_probe *const probe =
+					(const sr_probe*)g_slist_nth_data(
+						sdi->probes, i);
+				if(probe->enabled)
+				{
+					boost::shared_ptr<LogicSignal> signal(
+						new LogicSignal(probe->name,
+							_logic_data,
+							probe->index));
+					_signals.push_back(signal);
+				}
+			}
+
 			break;
 		}
 
diff --git a/sigsession.h b/sigsession.h
index f91a2b92..a08ba812 100644
--- a/sigsession.h
+++ b/sigsession.h
@@ -23,9 +23,8 @@
 
 #include <boost/shared_ptr.hpp>
 
-#include <list>
-#include <map>
 #include <string>
+#include <vector>
 
 #include <QObject>
 
@@ -48,6 +47,9 @@ public:
 
 	void loadFile(const std::string &name);
 
+	std::vector< boost::shared_ptr<Signal> >&
+		get_signals();
+
 private:
 	void dataFeedIn(const struct sr_dev_inst *sdi,
 		struct sr_datafeed_packet *packet);
@@ -56,7 +58,7 @@ private:
 		struct sr_datafeed_packet *packet);
 
 private:
-	std::list< boost::shared_ptr<Signal> > _signals;
+	std::vector< boost::shared_ptr<Signal> > _signals;
 	boost::shared_ptr<LogicData> _logic_data;
 	boost::shared_ptr<LogicDataSnapshot> _cur_logic_snapshot;
 
diff --git a/sigview.cpp b/sigview.cpp
index b682cce9..565e67e2 100644
--- a/sigview.cpp
+++ b/sigview.cpp
@@ -21,6 +21,14 @@
 #include "sigview.h"
 
 #include "sigsession.h"
+#include "signal.h"
+
+#include <boost/foreach.hpp>
+
+using namespace boost;
+using namespace std;
+
+const int SigView::SignalHeight = 50;
 
 SigView::SigView(SigSession &session, QWidget *parent) :
 	QGLWidget(parent),
@@ -55,10 +63,20 @@ void SigView::resizeGL(int width, int height)
 void SigView::paintGL()
 {
 	glClear(GL_COLOR_BUFFER_BIT);
+
+	QRect rect(0, 0, width(), SignalHeight);
+	const vector< shared_ptr<Signal> > &sigs =
+		_session.get_signals();
+	BOOST_FOREACH(const shared_ptr<Signal> s, sigs)
+	{
+		assert(s);
+		s->paint(*this, rect);
+		rect.translate(0, SignalHeight);
+	}
 }
 
 void SigView::dataUpdated()
 {
-	printf("Data Updated\n");
+	update();
 }
 
diff --git a/sigview.h b/sigview.h
index 780d765a..b43ae9a5 100644
--- a/sigview.h
+++ b/sigview.h
@@ -29,6 +29,10 @@ class SigSession;
 class SigView : public QGLWidget
 {
 	Q_OBJECT
+
+private:
+	static const int SignalHeight;
+
 public:
 	explicit SigView(SigSession &session, QWidget *parent = 0);