#include "cursorpair.h"
#include "view.h"
+#include "pv/util.h"
+#include <cassert>
#include <algorithm>
-using namespace std;
+using std::max;
+using std::make_pair;
+using std::min;
+using std::shared_ptr;
+using std::pair;
namespace pv {
namespace view {
-CursorPair::CursorPair(const View &view) :
- _first(view, 0.0, _second),
- _second(view, 1.0, _first),
+const int CursorPair::DeltaPadding = 8;
+
+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
+shared_ptr<Cursor> CursorPair::second() const
{
return _second;
}
-Cursor& CursorPair::second()
+QRectF CursorPair::get_label_rect(const QRect &rect) const
{
- return _second;
+ const QSizeF label_size(
+ _text_size.width() + View::LabelPadding.width() * 2,
+ _text_size.height() + View::LabelPadding.height() * 2);
+ const pair<float, float> offsets(get_cursor_offsets());
+ const pair<float, float> normal_offsets(
+ (offsets.first < offsets.second) ? offsets :
+ make_pair(offsets.second, offsets.first));
+
+ const float height = label_size.height();
+ const float left = max(normal_offsets.first + DeltaPadding, -height);
+ const float right = min(normal_offsets.second - DeltaPadding,
+ (float)rect.width() + height);
+
+ return QRectF(left, rect.height() - label_size.height() -
+ Cursor::ArrowSize - Cursor::Offset - 0.5f,
+ right - left, height);
}
void CursorPair::draw_markers(QPainter &p,
const QRect &rect, unsigned int prefix)
{
- _first.paint_label(p, rect, prefix);
- _second.paint_label(p, rect, prefix);
+ assert(_first);
+ assert(_second);
+
+ compute_text_size(p, prefix);
+ QRectF delta_rect(get_label_rect(rect));
+
+ const int radius = delta_rect.height() / 2;
+ const QRectF text_rect(delta_rect.intersected(
+ rect).adjusted(radius, 0, -radius, 0));
+ if(text_rect.width() >= _text_size.width())
+ {
+ const int highlight_radius = delta_rect.height() / 2 - 2;
+
+ p.setBrush(Cursor::FillColour);
+ p.setPen(Cursor::LineColour);
+ p.drawRoundedRect(delta_rect, radius, radius);
+
+ delta_rect.adjust(1, 1, -1, -1);
+ p.setPen(Cursor::HighlightColour);
+ p.drawRoundedRect(delta_rect, highlight_radius, highlight_radius);
+
+ p.setPen(Cursor::TextColour);
+ p.drawText(text_rect, Qt::AlignCenter | Qt::AlignVCenter,
+ pv::util::format_time(_second->time() - _first->time(), prefix, 2));
+ }
+
+ // Paint the cursor markers
+ _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, pv::util::format_time(
+ _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