score::BarsDrag Struct Reference

A modifier drag over a row of bars, each the value of a step. More...

Detailed Description

A modifier drag over a row of bars, each the value of a step.

Offset (Shift) moves every bar by the same amount, as far as the mouse went up or down. Random (Alt) blends each bar towards a random target, the more the further the mouse goes from where it pressed, whatever the direction. Either acts on steps only; the other bars keep their values.

bottom is the value at the bottom of the bars and top the one at the top: a row drawn upside down passes them the other way round.

Public Types
enum class	Kind { None , Offset , Random }

Public Member Functions
	operator bool () const noexcept
void	start (Kind k, QPointF pos, std::vector< float > values, std::vector< float > targets, std::vector< int > affected)
void	stop () noexcept
std::vector< float >	values (QPointF pos, double height, float bottom, float top) const
	The values with the mouse at pos, over bars height high.

Public Attributes
Kind	kind {Kind::None}
QPointF	origin
std::vector< float >	base
std::vector< float >	target
	For Random: where each bar ends up when dragged all the way.
std::vector< int >	steps

---

The documentation for this struct was generated from the following file:

• BarsDrag.hpp