/*
- * 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>
*
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include <libsigrokdecode/libsigrokdecode.h>
+
#include <assert.h>
+#include <limits.h>
#include <math.h>
+#include <set>
+
#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;
const int View::LabelMarginWidth = 70;
const int View::RulerHeight = 30;
-const int View::SignalHeight = 50;
+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),
_data_length(0),
_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(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()));
+
setViewportMargins(LabelMarginWidth, RulerHeight, 0, 0);
setViewport(_viewport);
+
+ _viewport->installEventFilter(this);
+ _ruler->installEventFilter(this);
+ _header->installEventFilter(this);
}
SigSession& View::session()
return _session;
}
+const SigSession& View::session() const
+{
+ return _session;
+}
+
double View::scale() const
{
return _scale;
zoom(steps, (width() - LabelMarginWidth) / 2);
}
+void View::zoom(double steps, int offset)
+{
+ const double cursor_offset = _offset + _scale * offset;
+ const double new_scale = max(min(_scale * pow(3.0/2.0, -steps),
+ MaxScale), MinScale);
+ const double new_offset = cursor_offset - new_scale * offset;
+ set_scale_offset(new_scale, new_offset);
+}
+
+void View::zoom_fit()
+{
+ 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 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);
+ if (right_time - left_time < 1e-12)
+ return;
+
+ assert(_viewport);
+ const int w = _viewport->width();
+ if (w <= 0)
+ return;
+
+ set_scale_offset((right_time - left_time) / w, left_time);
+}
+
void View::set_scale_offset(double scale, double offset)
{
_scale = scale;
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());
+ const vector< shared_ptr<DecodeTrace> > decode_sigs(
+ session().get_decode_signals());
+ vector< shared_ptr<Trace> > traces(
+ sigs.size() + decode_sigs.size());
+
+ vector< shared_ptr<Trace> >::iterator i = traces.begin();
+ i = copy(sigs.begin(), sigs.end(), i);
+ i = copy(decode_sigs.begin(), decode_sigs.end(), i);
+
+ 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;
+}
+
+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 shared_ptr<data::SignalData> sig_data = _session.get_data();
+ if (!sig_data)
+ return;
+
+ length = _data_length / (sig_data->samplerate() * _scale);
+ offset = _offset / _scale;
}
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)
+bool View::compare_trace_v_offsets(const shared_ptr<Trace> &a,
+ const shared_ptr<Trace> &b)
{
- 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;
+ assert(a);
+ assert(b);
+ return a->get_v_offset() < b->get_v_offset();
+}
- _ruler->update();
- _viewport->update();
- update_scroll();
+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)
}
}
-void View::resizeEvent(QResizeEvent *e)
+void View::resizeEvent(QResizeEvent*)
{
_ruler->setGeometry(_viewport->x(), 0,
_viewport->width(), _viewport->y());
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();
}
_viewport->update();
}
+void View::signals_changed()
+{
+ 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;
+ }
+
+ normalize_layout();
+}
+
void View::data_updated()
{
// Get the new data length
_data_length = 0;
- shared_ptr<LogicData> sig_data = _session.get_data();
- if(sig_data) {
- deque< shared_ptr<LogicDataSnapshot> > &snapshots =
+ shared_ptr<data::Logic> sig_data = _session.get_data();
+ if (sig_data) {
+ deque< shared_ptr<data::LogicSnapshot> > &snapshots =
sig_data->get_snapshots();
- BOOST_FOREACH(shared_ptr<LogicDataSnapshot> s, snapshots)
- if(s)
+ BOOST_FOREACH(shared_ptr<data::LogicSnapshot> s, snapshots)
+ if (s)
_data_length = max(_data_length,
s->get_sample_count());
}
_viewport->update();
}
+void View::marker_time_changed()
+{
+ _ruler->update();
+ _viewport->update();
+}
+
+void View::on_signals_moved()
+{
+ update_scroll();
+ signals_moved();
+}
+
} // namespace view
} // namespace pv
projects / pulseview.git / blobdiff