X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fview%2Fview.cpp;h=a437918d9f2a88f3001f35ae9eb33b854530924c;hp=e0d3ada7be39df61149417fd6af1651703e90bca;hb=1bc6525bd6274b7f06f5fa8355b539dd9307f599;hpb=1d19ef83d7598f3248086d456df55e844b229bb3

diff --git a/pv/view/view.cpp b/pv/view/view.cpp
index e0d3ada7..a437918d 100644
--- a/pv/view/view.cpp
+++ b/pv/view/view.cpp
@@ -1,5 +1,5 @@
 /*
- * This file is part of the sigrok project.
+ * This file is part of the PulseView project.
  *
  * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
  *
@@ -18,23 +18,42 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  */
 
+#ifdef ENABLE_DECODE
+#include <libsigrokdecode/libsigrokdecode.h>
+#endif
+
 #include <assert.h>
+#include <limits.h>
 #include <math.h>
 
 #include <boost/foreach.hpp>
 
 #include <QEvent>
+#include <QMouseEvent>
 #include <QScrollBar>
 
+#include "decodetrace.h"
+#include "header.h"
+#include "ruler.h"
+#include "signal.h"
 #include "view.h"
 #include "viewport.h"
 
-#include "../../logicdata.h"
-#include "../../logicdatasnapshot.h"
-#include "../../sigsession.h"
+#include "pv/sigsession.h"
+#include "pv/data/logic.h"
+#include "pv/data/logicsnapshot.h"
 
-using namespace boost;
-using namespace std;
+using boost::shared_ptr;
+using boost::weak_ptr;
+using pv::data::SignalData;
+using std::deque;
+using std::list;
+using std::max;
+using std::make_pair;
+using std::min;
+using std::pair;
+using std::set;
+using std::vector;
 
 namespace pv {
 namespace view {
@@ -42,25 +61,65 @@ namespace view {
 const double View::MaxScale = 1e9;
 const double View::MinScale = 1e-15;
 
-const int View::LabelMarginWidth = 70;
-const int View::RulerHeight = 30;
+const int View::MaxScrollValue = INT_MAX / 2;
+
+const int View::SignalHeight = 30;
+const int View::SignalMargin = 10;
+const int View::SignalSnapGridSize = 10;
+
+const QColor View::CursorAreaColour(220, 231, 243);
+
+const QSizeF View::LabelPadding(4, 0);
 
 View::View(SigSession &session, QWidget *parent) :
 	QAbstractScrollArea(parent),
 	_session(session),
 	_viewport(new Viewport(*this)),
-	_data_length(0),
+	_ruler(new Ruler(*this)),
+	_header(new Header(*this)),
 	_scale(1e-6),
 	_offset(0),
-	_v_offset(0)
+	_v_offset(0),
+	_updating_scroll(false),
+	_show_cursors(false),
+	_cursors(*this),
+	_hover_point(-1, -1)
 {
 	connect(horizontalScrollBar(), SIGNAL(valueChanged(int)),
 		this, SLOT(h_scroll_value_changed(int)));
 	connect(verticalScrollBar(), SIGNAL(valueChanged(int)),
 		this, SLOT(v_scroll_value_changed(int)));
+
+	connect(&_session, SIGNAL(signals_changed()),
+		this, SLOT(signals_changed()));
 	connect(&_session, SIGNAL(data_updated()),
 		this, SLOT(data_updated()));
+
+	connect(_cursors.first().get(), SIGNAL(time_changed()),
+		this, SLOT(marker_time_changed()));
+	connect(_cursors.second().get(), SIGNAL(time_changed()),
+		this, SLOT(marker_time_changed()));
+
+	connect(_header, SIGNAL(geometry_updated()),
+		this, SLOT(on_geometry_updated()));
+	connect(_header, SIGNAL(signals_moved()),
+		this, SLOT(on_signals_moved()));
+
+	connect(_header, SIGNAL(selection_changed()),
+		_ruler, SLOT(clear_selection()));
+	connect(_ruler, SIGNAL(selection_changed()),
+		_header, SLOT(clear_selection()));
+
+	connect(_header, SIGNAL(selection_changed()),
+		this, SIGNAL(selection_changed()));
+	connect(_ruler, SIGNAL(selection_changed()),
+		this, SIGNAL(selection_changed()));
+
 	setViewport(_viewport);
+
+	_viewport->installEventFilter(this);
+	_ruler->installEventFilter(this);
+	_header->installEventFilter(this);
 }
 
 SigSession& View::session()
@@ -68,6 +127,11 @@ SigSession& View::session()
 	return _session;
 }
 
+const SigSession& View::session() const
+{
+	return _session;
+}
+
 double View::scale() const
 {
 	return _scale;
@@ -85,17 +149,225 @@ int View::v_offset() const
 
 void View::zoom(double steps)
 {
-	zoom(steps, (width() - LabelMarginWidth) / 2);
+	zoom(steps, _viewport->width() / 2);
+}
+
+void View::zoom(double steps, int offset)
+{
+	const double new_scale = max(min(_scale * pow(3.0/2.0, -steps),
+		MaxScale), MinScale);
+	set_zoom(new_scale, offset);
+}
+
+void View::zoom_fit()
+{
+	const pair<double, double> extents = get_time_extents();
+	const double delta = extents.second - extents.first;
+	if (delta < 1e-12)
+		return;
+
+	assert(_viewport);
+	const int w = _viewport->width();
+	if (w <= 0)
+		return;
+
+	set_scale_offset(delta / w, extents.first);
+}
+
+void View::zoom_one_to_one()
+{
+	using pv::data::SignalData;
+
+	const vector< shared_ptr<Signal> > sigs(
+		session().get_signals());
+
+	// Make a set of all the visible data objects
+	set< shared_ptr<SignalData> > visible_data;
+	BOOST_FOREACH(const shared_ptr<Signal> sig, sigs)
+		if (sig->enabled())
+			visible_data.insert(sig->data());
+
+	if (visible_data.empty())
+		return;
+
+	double samplerate = 0.0;
+	BOOST_FOREACH(const shared_ptr<SignalData> d, visible_data) {
+		assert(d);
+		samplerate = max(samplerate, d->samplerate());
+	}
+
+	if (samplerate == 0.0)
+		return;
+
+	assert(_viewport);
+	const int w = _viewport->width();
+	if (w <= 0)
+		return;
+
+	set_zoom(1.0 / samplerate, w / 2);
 }
 
 void View::set_scale_offset(double scale, double offset)
 {
 	_scale = scale;
 	_offset = offset;
+
 	update_scroll();
+	_ruler->update();
+	_viewport->update();
+	scale_offset_changed();
+}
+
+vector< shared_ptr<Trace> > View::get_traces() const
+{
+	const vector< shared_ptr<Signal> > sigs(
+		session().get_signals());
+#ifdef ENABLE_DECODE
+	const vector< shared_ptr<DecodeTrace> > decode_sigs(
+		session().get_decode_signals());
+	vector< shared_ptr<Trace> > traces(
+		sigs.size() + decode_sigs.size());
+#else
+	vector< shared_ptr<Trace> > traces(sigs.size());
+#endif
+
+	vector< shared_ptr<Trace> >::iterator i = traces.begin();
+	i = copy(sigs.begin(), sigs.end(), i);
+#ifdef ENABLE_DECODE
+	i = copy(decode_sigs.begin(), decode_sigs.end(), i);
+#endif
+
+	stable_sort(traces.begin(), traces.end(), compare_trace_v_offsets);
+	return traces;
+}
+
+list<weak_ptr<SelectableItem> > View::selected_items() const
+{
+	list<weak_ptr<SelectableItem> > items;
+
+	// List the selected signals
+	const vector< shared_ptr<Trace> > traces(get_traces());
+	BOOST_FOREACH (shared_ptr<Trace> t, traces) {
+		assert(t);
+		if (t->selected())
+			items.push_back(t);
+	}
+
+	// List the selected cursors
+	if (_cursors.first()->selected())
+		items.push_back(_cursors.first());
+	if (_cursors.second()->selected())
+		items.push_back(_cursors.second());
+
+	return items;
+}
+
+set< shared_ptr<SignalData> > View::get_visible_data() const
+{
+	const vector< shared_ptr<Signal> > sigs(
+		session().get_signals());
+
+	// Make a set of all the visible data objects
+	set< shared_ptr<SignalData> > visible_data;
+	BOOST_FOREACH(const shared_ptr<Signal> sig, sigs)
+		if (sig->enabled())
+			visible_data.insert(sig->data());
+
+	return visible_data;
+}
+
+pair<double, double> View::get_time_extents() const
+{
+	const set< shared_ptr<SignalData> > visible_data = get_visible_data();
+	if (visible_data.empty())
+		return make_pair(0.0, 0.0);
+
+	double left_time = DBL_MAX, right_time = DBL_MIN;
+	BOOST_FOREACH(const shared_ptr<SignalData> d, visible_data)
+	{
+		const double start_time = d->get_start_time();
+		left_time = min(left_time, start_time);
+		right_time = max(right_time, start_time +
+			d->get_max_sample_count() / d->samplerate());
+	}
+
+	assert(left_time < right_time);
+	return make_pair(left_time, right_time);
+}
+
+bool View::cursors_shown() const
+{
+	return _show_cursors;
+}
+
+void View::show_cursors(bool show)
+{
+	_show_cursors = show;
+	_ruler->update();
 	_viewport->update();
 }
 
+void View::centre_cursors()
+{
+	const double time_width = _scale * _viewport->width();
+	_cursors.first()->set_time(_offset + time_width * 0.4);
+	_cursors.second()->set_time(_offset + time_width * 0.6);
+	_ruler->update();
+	_viewport->update();
+}
+
+CursorPair& View::cursors()
+{
+	return _cursors;
+}
+
+const CursorPair& View::cursors() const
+{
+	return _cursors;
+}
+
+const QPoint& View::hover_point() const
+{
+	return _hover_point;
+}
+
+void View::normalize_layout()
+{
+	const vector< shared_ptr<Trace> > traces(get_traces());
+
+	int v_min = INT_MAX;
+	BOOST_FOREACH(const shared_ptr<Trace> t, traces)
+		v_min = min(t->get_v_offset(), v_min);
+
+	const int delta = -min(v_min, 0);
+	BOOST_FOREACH(shared_ptr<Trace> t, traces)
+		t->set_v_offset(t->get_v_offset() + delta);
+
+	verticalScrollBar()->setSliderPosition(_v_offset + delta);
+	v_scroll_value_changed(verticalScrollBar()->sliderPosition());
+}
+
+void View::update_viewport()
+{
+	assert(_viewport);
+	_viewport->update();
+}
+
+void View::get_scroll_layout(double &length, double &offset) const
+{
+	const pair<double, double> extents = get_time_extents();
+	length = (extents.second - extents.first) / _scale;
+	offset = _offset / _scale;
+}
+
+void View::set_zoom(double scale, int offset)
+{
+	const double cursor_offset = _offset + _scale * offset;
+	const double new_scale = max(min(scale, MaxScale), MinScale);
+	const double new_offset = cursor_offset - new_scale * offset;
+	set_scale_offset(new_scale, new_offset);
+}
+
 void View::update_scroll()
 {
 	assert(_viewport);
@@ -104,34 +376,75 @@ void View::update_scroll()
 
 	// Set the horizontal scroll bar
 	double length = 0, offset = 0;
-	const shared_ptr<SignalData> sig_data = _session.get_data();
-	if(sig_data) {
-		length = _data_length /
-			(sig_data->get_samplerate() * _scale);
-		offset = _offset / _scale;
+	get_scroll_layout(length, offset);
+	length = max(length - areaSize.width(), 0.0);
+
+	horizontalScrollBar()->setPageStep(areaSize.width() / 2);
+
+	_updating_scroll = true;
+
+	if (length < MaxScrollValue) {
+		horizontalScrollBar()->setRange(0, length);
+		horizontalScrollBar()->setSliderPosition(offset);
+	} else {
+		horizontalScrollBar()->setRange(0, MaxScrollValue);
+		horizontalScrollBar()->setSliderPosition(
+			_offset * MaxScrollValue / (_scale * length));
 	}
 
-	horizontalScrollBar()->setPageStep(areaSize.width());
-	horizontalScrollBar()->setRange(0,
-		max((int)(length - areaSize.width()), 0));
-	horizontalScrollBar()->setSliderPosition(offset);
+	_updating_scroll = false;
 
 	// Set the vertical scrollbar
 	verticalScrollBar()->setPageStep(areaSize.height());
 	verticalScrollBar()->setRange(0,
-		_viewport->get_total_height() - areaSize.height());
+		_viewport->get_total_height() + SignalMargin -
+		areaSize.height());
 }
 
-void View::zoom(double steps, int offset)
+void View::update_layout()
 {
-	const double cursor_offset = _offset + _scale * offset;
-	_scale *= pow(3.0/2.0, -steps);
-	_scale = max(min(_scale, MaxScale), MinScale);
-	_offset = cursor_offset - _scale * offset;
-	_viewport->update();
+	setViewportMargins(_header->sizeHint().width(),
+		_ruler->sizeHint().height(), 0, 0);
+	_ruler->setGeometry(_viewport->x(), 0,
+		_viewport->width(), _viewport->y());
+	_header->setGeometry(0, _viewport->y(),
+		_viewport->x(), _viewport->height());
 	update_scroll();
 }
 
+bool View::compare_trace_v_offsets(const shared_ptr<Trace> &a,
+	const shared_ptr<Trace> &b)
+{
+	assert(a);
+	assert(b);
+	return a->get_v_offset() < b->get_v_offset();
+}
+
+bool View::eventFilter(QObject *object, QEvent *event)
+{
+	const QEvent::Type type = event->type();
+	if (type == QEvent::MouseMove) {
+
+		const QMouseEvent *const mouse_event = (QMouseEvent*)event;
+		if (object == _viewport)
+			_hover_point = mouse_event->pos();
+		else if (object == _ruler)
+			_hover_point = QPoint(mouse_event->x(), 0);
+		else if (object == _header)
+			_hover_point = QPoint(0, mouse_event->y());
+		else
+			_hover_point = QPoint(-1, -1);
+
+		hover_point_changed();
+
+	} else if (type == QEvent::Leave) {
+		_hover_point = QPoint(-1, -1);
+		hover_point_changed();
+	}
+
+	return QObject::eventFilter(object, event);
+}
+
 bool View::viewportEvent(QEvent *e)
 {
 	switch(e->type()) {
@@ -148,37 +461,52 @@ bool View::viewportEvent(QEvent *e)
 	}
 }
 
-void View::resizeEvent(QResizeEvent *e)
+void View::resizeEvent(QResizeEvent*)
 {
-	update_scroll();
+	update_layout();
 }
 
 void View::h_scroll_value_changed(int value)
 {
-	_offset = _scale * value;
+	if (_updating_scroll)
+		return;
+
+	const int range = horizontalScrollBar()->maximum();
+	if (range < MaxScrollValue)
+		_offset = _scale * value;
+	else {
+		double length = 0, offset;
+		get_scroll_layout(length, offset);
+		_offset = _scale * length * value / MaxScrollValue;
+	}
+
+	_ruler->update();
 	_viewport->update();
 }
 
 void View::v_scroll_value_changed(int value)
 {
 	_v_offset = value;
+	_header->update();
 	_viewport->update();
 }
 
-void View::data_updated()
+void View::signals_changed()
 {
-	// Get the new data length
-	_data_length = 0;
-	shared_ptr<LogicData> sig_data = _session.get_data();
-	if(sig_data) {
-		deque< shared_ptr<LogicDataSnapshot> > &snapshots =
-			sig_data->get_snapshots();
-		BOOST_FOREACH(shared_ptr<LogicDataSnapshot> s, snapshots)
-			if(s)
-				_data_length = max(_data_length,
-					s->get_sample_count());
+	int offset = SignalMargin + SignalHeight;
+	const vector< shared_ptr<Trace> > traces(get_traces());
+	BOOST_FOREACH(shared_ptr<Trace> t, traces) {
+		t->set_view(this);
+		t->set_v_offset(offset);
+		offset += SignalHeight + 2 * SignalMargin;
 	}
 
+	update_layout();
+	normalize_layout();
+}
+
+void View::data_updated()
+{
 	// Update the scroll bars
 	update_scroll();
 
@@ -186,5 +514,22 @@ void View::data_updated()
 	_viewport->update();
 }
 
+void View::marker_time_changed()
+{
+	_ruler->update();
+	_viewport->update();
+}
+
+void View::on_signals_moved()
+{
+	update_scroll();
+	signals_moved();
+}
+
+void View::on_geometry_updated()
+{
+	update_layout();
+}
+
 } // namespace view
 } // namespace pv