#include <algorithm>
-using namespace std;
+using boost::shared_ptr;
+using std::max;
+using std::make_pair;
+using std::min;
+using std::pair;
namespace pv {
namespace view {
const int CursorPair::DeltaPadding = 8;
-CursorPair::CursorPair(const View &view) :
- _first(view, 0.0, _second),
- _second(view, 1.0, _first),
+CursorPair::CursorPair(View &view) :
+ _first(new Cursor(view, 0.0)),
+ _second(new Cursor(view, 1.0)),
_view(view)
{
}
-const Cursor& CursorPair::first() const
+shared_ptr<Cursor> CursorPair::first() const
{
return _first;
}
-Cursor& CursorPair::first()
-{
- return _first;
-}
-
-const Cursor& CursorPair::second() const
-{
- return _second;
-}
-
-Cursor& CursorPair::second()
+shared_ptr<Cursor> CursorPair::second() const
{
return _second;
}
void CursorPair::draw_markers(QPainter &p,
const QRect &rect, unsigned int prefix)
{
+ assert(_first);
+ assert(_second);
+
compute_text_size(p, prefix);
QRectF delta_rect(get_label_rect(rect));
p.setPen(Cursor::TextColour);
p.drawText(text_rect, Qt::AlignCenter | Qt::AlignVCenter,
- Ruler::format_time(_second.time() - _first.time(), prefix, 2));
+ Ruler::format_time(_second->time() - _first->time(), prefix, 2));
}
// Paint the cursor markers
- _first.paint_label(p, rect, prefix);
- _second.paint_label(p, rect, prefix);
+ _first->paint_label(p, rect, prefix);
+ _second->paint_label(p, rect, prefix);
}
void CursorPair::draw_viewport_background(QPainter &p,
void CursorPair::draw_viewport_foreground(QPainter &p,
const QRect &rect)
{
- _first.paint(p, rect);
- _second.paint(p, rect);
+ assert(_first);
+ assert(_second);
+
+ _first->paint(p, rect);
+ _second->paint(p, rect);
}
void CursorPair::compute_text_size(QPainter &p, unsigned int prefix)
{
+ assert(_first);
+ assert(_second);
+
_text_size = p.boundingRect(QRectF(), 0, Ruler::format_time(
- _second.time() - _first.time(), prefix, 2)).size();
+ _second->time() - _first->time(), prefix, 2)).size();
}
pair<float, float> CursorPair::get_cursor_offsets() const
{
+ assert(_first);
+ assert(_second);
+
return pair<float, float>(
- (_first.time() - _view.offset()) / _view.scale(),
- (_second.time() - _view.offset()) / _view.scale());
+ (_first->time() - _view.offset()) / _view.scale(),
+ (_second->time() - _view.offset()) / _view.scale());
}
} // namespace view