* 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"
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;
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(_ruler, SIGNAL(selection_changed()),
this, SIGNAL(selection_changed()));
- setViewportMargins(LabelMarginWidth, RulerHeight, 0, 0);
setViewport(_viewport);
_viewport->installEventFilter(this);
return _session;
}
+const SigSession& View::session() const
+{
+ return _session;
+}
+
double View::scale() const
{
return _scale;
void View::zoom(double steps)
{
- zoom(steps, (width() - LabelMarginWidth) / 2);
+ zoom(steps, _viewport->width() / 2);
}
void View::zoom(double steps, int offset)
{
- 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;
+ const double new_scale = max(min(_scale * pow(3.0/2.0, -steps),
+ MaxScale), MinScale);
+ set_zoom(new_scale, offset);
+}
- _ruler->update();
- _viewport->update();
- update_scroll();
+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::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)
{
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<Signal> > sigs(_session.get_signals());
- BOOST_FOREACH (shared_ptr<Signal> s, sigs) {
- assert(s);
- if (s->selected())
- items.push_back(s);
+ 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
void View::normalize_layout()
{
- const vector< shared_ptr<Signal> > sigs(_session.get_signals());
+ const vector< shared_ptr<Trace> > traces(get_traces());
int v_min = INT_MAX;
- BOOST_FOREACH(const shared_ptr<Signal> s, sigs)
- v_min = min(s->get_v_offset(), v_min);
+ 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<Signal> s, sigs)
- s->set_v_offset(s->get_v_offset() + delta);
+ 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->get_samplerate() * _scale);
+ length = _data_length / (sig_data->samplerate() * _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);
areaSize.height());
}
-void View::reset_signal_layout()
+void View::update_layout()
{
- int offset = SignalMargin + SignalHeight;
- const vector< shared_ptr<Signal> > sigs(_session.get_signals());
- BOOST_FOREACH(shared_ptr<Signal> s, sigs) {
- s->set_v_offset(offset);
- offset += SignalHeight + 2 * SignalMargin;
- }
+ setViewportMargins(_header->sizeHint().width(), RulerHeight, 0, 0);
+ _ruler->setGeometry(_viewport->x(), 0,
+ _viewport->width(), _viewport->y());
+ _header->setGeometry(0, _viewport->y(),
+ _viewport->x(), _viewport->height());
+ update_scroll();
+}
- normalize_layout();
+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)
void View::resizeEvent(QResizeEvent*)
{
- _ruler->setGeometry(_viewport->x(), 0,
- _viewport->width(), _viewport->y());
- _header->setGeometry(0, _viewport->y(),
- _viewport->x(), _viewport->height());
- update_scroll();
+ update_layout();
}
void View::h_scroll_value_changed(int value)
void View::signals_changed()
{
- reset_signal_layout();
+ 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;
+ }
+
+ setViewportMargins(_header->sizeHint().width(), RulerHeight, 0, 0);
+ normalize_layout();
}
void View::data_updated()
signals_moved();
}
+void View::on_geometry_updated()
+{
+ update_layout();
+}
+
} // namespace view
} // namespace pv
projects / pulseview.git / blobdiff