_view.session().get_signals();
QPainter p(this);
+ p.setRenderHint(QPainter::Antialiasing);
+
+ draw_cursors_background(p);
// Plot the signal
int offset = -_view.v_offset();
offset += View::SignalHeight;
}
+ draw_cursors_foreground(p);
+
p.end();
}
_view.zoom(event->delta() / 120, event->x());
}
+void Viewport::draw_cursors_background(QPainter &p)
+{
+ if(!_view.cursors_shown())
+ return;
+
+ p.setPen(Qt::NoPen);
+ p.setBrush(QBrush(View::CursorAreaColour));
+
+ const pair<Cursor, Cursor> &c = _view.cursors();
+ const float x1 = (c.first.time() - _view.offset()) / _view.scale();
+ const float x2 = (c.second.time() - _view.offset()) / _view.scale();
+ const int l = (int)max(min(x1, x2), 0.0f);
+ const int r = (int)min(max(x1, x2), (float)width());
+
+ p.drawRect(l, 0, r - l, height());
+}
+
+void Viewport::draw_cursors_foreground(QPainter &p)
+{
+ if(!_view.cursors_shown())
+ return;
+
+ const QRect r = rect();
+ pair<Cursor, Cursor> &cursors = _view.cursors();
+ cursors.first.paint(p, r);
+ cursors.second.paint(p, r);
+}
+
} // namespace view
} // namespace pv