#include <boost/foreach.hpp>
#include <QEvent>
+#include <QMouseEvent>
#include <QScrollBar>
#include "header.h"
#include "ruler.h"
+#include "signal.h"
#include "view.h"
#include "viewport.h"
const int View::MaxScrollValue = INT_MAX / 2;
-const int View::SignalHeight = 50;
+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),
+ _show_cursors(false),
+ _cursors(pair<Cursor, Cursor>(Cursor(*this, 0.0),
+ Cursor(*this, 1.0))),
+ _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, SIGNAL(time_changed()),
+ this, SLOT(marker_time_changed()));
+ connect(&_cursors.second, SIGNAL(time_changed()),
+ this, SLOT(marker_time_changed()));
+
+ connect(_header, SIGNAL(signals_moved()),
+ this, SLOT(on_signals_moved()));
+
setViewportMargins(LabelMarginWidth, RulerHeight, 0, 0);
setViewport(_viewport);
+
+ _viewport->installEventFilter(this);
+ _ruler->installEventFilter(this);
+ _header->installEventFilter(this);
}
SigSession& View::session()
_viewport->update();
}
+bool View::cursors_shown() const
+{
+ return _show_cursors;
+}
+
+void View::show_cursors(bool show)
+{
+ _show_cursors = show;
+ _ruler->update();
+ _viewport->update();
+}
+
+std::pair<Cursor, Cursor>& View::cursors()
+{
+ return _cursors;
+}
+
+const QPoint& View::hover_point() const
+{
+ return _hover_point;
+}
+
+void View::normalize_layout()
+{
+ const vector< shared_ptr<Signal> > sigs(_session.get_signals());
+
+ int v_min = INT_MAX;
+ BOOST_FOREACH(const shared_ptr<Signal> s, sigs)
+ v_min = min(s->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);
+
+ verticalScrollBar()->setSliderPosition(_v_offset + delta);
+ v_scroll_value_changed(verticalScrollBar()->sliderPosition());
+}
+
void View::get_scroll_layout(double &length, double &offset) const
{
const shared_ptr<SignalData> sig_data = _session.get_data();
- if(!sig_data)
+ if (!sig_data)
return;
length = _data_length / (sig_data->get_samplerate() * _scale);
horizontalScrollBar()->setPageStep(areaSize.width());
- if(length < MaxScrollValue) {
+ if (length < MaxScrollValue) {
horizontalScrollBar()->setRange(0, length);
horizontalScrollBar()->setSliderPosition(offset);
} else {
// 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::reset_signal_layout()
+{
+ int offset = SignalMargin;
+ 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;
+ }
+
+ normalize_layout();
+}
+
+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::h_scroll_value_changed(int value)
{
const int range = horizontalScrollBar()->maximum();
- if(range < MaxScrollValue)
+ if (range < MaxScrollValue)
_offset = _scale * value;
else {
double length = 0, offset;
_viewport->update();
}
+void View::signals_changed()
+{
+ reset_signal_layout();
+}
+
void View::data_updated()
{
// Get the new data length
_data_length = 0;
shared_ptr<LogicData> sig_data = _session.get_data();
- if(sig_data) {
+ if (sig_data) {
deque< shared_ptr<LogicDataSnapshot> > &snapshots =
sig_data->get_snapshots();
BOOST_FOREACH(shared_ptr<LogicDataSnapshot> s, snapshots)
- if(s)
+ 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