/*
- * 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>
*
*/
#include <assert.h>
+#include <limits.h>
#include <math.h>
#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"
-#include "../../logicdata.h"
-#include "../../logicdatasnapshot.h"
-#include "../../sigsession.h"
+#include "../logicdata.h"
+#include "../logicdatasnapshot.h"
+#include "../sigsession.h"
using namespace boost;
using namespace std;
const int View::LabelMarginWidth = 70;
const int View::RulerHeight = 30;
+const int View::MaxScrollValue = INT_MAX / 2;
+
+const int View::SignalHeight = 50;
+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)),
+ _ruler(new Ruler(*this)),
+ _header(new Header(*this)),
_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)));
this, SLOT(v_scroll_value_changed(int)));
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(signals_moved()));
+
+ setViewportMargins(LabelMarginWidth, RulerHeight, 0, 0);
setViewport(_viewport);
+
+ _viewport->installEventFilter(this);
+ _ruler->installEventFilter(this);
+ _header->installEventFilter(this);
+}
+
+SigSession& View::session()
+{
+ return _session;
}
double View::scale() const
zoom(steps, (width() - LabelMarginWidth) / 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;
+
+ _ruler->update();
+ _viewport->update();
+ update_scroll();
+}
+
+
void View::set_scale_offset(double scale, double offset)
{
_scale = scale;
_offset = offset;
+
update_scroll();
+ _ruler->update();
+ _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::get_scroll_layout(double &length, double &offset) const
+{
+ const shared_ptr<SignalData> sig_data = _session.get_data();
+ if(!sig_data)
+ return;
+
+ length = _data_length / (sig_data->get_samplerate() * _scale);
+ offset = _offset / _scale;
+}
+
void View::update_scroll()
{
assert(_viewport);
// 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());
- horizontalScrollBar()->setRange(0,
- max((int)(length - areaSize.width()), 0));
- horizontalScrollBar()->setSliderPosition(offset);
+
+ if(length < MaxScrollValue) {
+ horizontalScrollBar()->setRange(0, length);
+ horizontalScrollBar()->setSliderPosition(offset);
+ } else {
+ horizontalScrollBar()->setRange(0, MaxScrollValue);
+ horizontalScrollBar()->setSliderPosition(
+ _offset * MaxScrollValue / (_scale * length));
+ }
// Set the vertical scrollbar
verticalScrollBar()->setPageStep(areaSize.height());
_viewport->get_total_height() - areaSize.height());
}
-void View::zoom(double steps, int offset)
+void View::reset_signal_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();
- update_scroll();
+ int offset = 0;
+ vector< shared_ptr<Signal> > &sigs = _session.get_signals();
+ BOOST_FOREACH(shared_ptr<Signal> s, sigs) {
+ s->set_v_offset(offset);
+ offset += SignalHeight;
+ }
+}
+
+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)
{
+ _ruler->setGeometry(_viewport->x(), 0,
+ _viewport->width(), _viewport->y());
+ _header->setGeometry(0, _viewport->y(),
+ _viewport->x(), _viewport->height());
update_scroll();
}
void View::h_scroll_value_changed(int value)
{
- _offset = _scale * value;
+ 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();
}
// Repaint the view
_viewport->update();
+
+ /// @todo: Call this only once when the signals are first created.
+ reset_signal_layout();
+}
+
+void View::marker_time_changed()
+{
+ _ruler->update();
+ _viewport->update();
+}
+
+void View::signals_moved()
+{
+ _header->update();
+ _viewport->update();
}
} // namespace view
projects / pulseview.git / blobdiff