#include <stdint.h>
+#include <utility>
+
#include <QAbstractScrollArea>
+#include "cursor.h"
+
namespace pv {
class SigSession;
public:
static const int SignalHeight;
+ static const QColor CursorAreaColour;
+
public:
explicit View(SigSession &session, QWidget *parent = 0);
SigSession& session();
+ /**
+ * Returns the view time scale in seconds per pixel.
+ */
double scale() const;
+
+ /**
+ * Returns the time offset of the left edge of the view in
+ * seconds.
+ */
double offset() const;
int v_offset() const;
void zoom(double steps);
void zoom(double steps, int offset);
+ /**
+ * Sets the scale and offset.
+ * @param scale The new view scale in seconds per pixel.
+ * @param offset The view time offset in seconds.
+ */
void set_scale_offset(double scale, double offset);
+ /**
+ * Returns true if cursors are displayed. false otherwise.
+ */
+ bool cursors_shown() const;
+
+ /**
+ * Shows or hides the cursors.
+ */
+ void show_cursors(bool show = true);
+
+ /**
+ * Returns a reference to the pair of cursors.
+ */
+ std::pair<Cursor, Cursor>& cursors();
+
const QPoint& hover_point() const;
signals:
uint64_t _data_length;
+ /// The view time scale in seconds per pixel.
double _scale;
+
+ /// The view time offset in seconds.
double _offset;
int _v_offset;
+ bool _show_cursors;
+ std::pair<Cursor, Cursor> _cursors;
+
QPoint _hover_point;
};