CalfCurve Struct Reference

#include <ctl_curve.h>

Classes
struct	EventSink
	User callbacks for handling curve events. More...
struct	EventAdapter
	Null implementation of EventSink. More...
struct	EventTester
	Debug implementation of EventSink. More...

Public Types
typedef std::pair< float, float >	point
	A point with floating point X and Y coordinates.
typedef std::vector< point >	point_vector
	A collection of points.

Public Member Functions
void	log2phys (float &x, float &y)
	Convert logical (mapping) to physical (screen) coordinates.
void	phys2log (float &x, float &y)
	Convert physical (screen) to logical (mapping) coordinates.
void	clip (int pt, float &x, float &y, bool &hide)

Public Attributes
GtkWidget	parent
	Base class instance members.
point_vector *	points
	Array of points.
float	x0
	Coordinate ranges (in logical coordinates for top left and bottom right).
float	y0
float	x1
float	y1
int	cur_pt
	Currently selected point (when dragging/adding), or -1 if none is selected.
bool	hide_current
	If currently selected point is a candidate for deletion (ie. outside of graph+margin range).
EventSink *	sink
	Interface for notification.
GdkCursor *	hand_cursor
	Cached hand (drag) cursor.
GdkCursor *	pencil_cursor
	Cached pencil (add point) cursor.
GdkCursor *	arrow_cursor
	Cached arrow (do not add point) cursor.
unsigned int	point_limit
	Maximum number of points.

Detailed Description

Mapping curve editor control. May be used for editing multisegment lines (key mapping, velocity mapping etc). This version isn't suitable for envelope editing because both ends (start and end) have fixed X coordinates and it doesn't resize.

Member Typedef Documentation

point

typedef std::pair<float, float> CalfCurve::point

A point with floating point X and Y coordinates.

point_vector

typedef std::vector<point> CalfCurve::point_vector

A collection of points.

Member Function Documentation

clip()

void CalfCurve::clip	(	int	pt,
		float &	x,
		float &	y,
		bool &	hide )

Clip function

Parameters

pt	point being clipped
x	horizontal logical coordinate
y	vertical logical coordinate
hide	true if point is outside "valid" range and about to be deleted

log2phys()

void CalfCurve::log2phys	(	float &	x,
		float &	y )

Convert logical (mapping) to physical (screen) coordinates.

phys2log()

void CalfCurve::phys2log	(	float &	x,
		float &	y )

Convert physical (screen) to logical (mapping) coordinates.

Member Data Documentation

arrow_cursor

GdkCursor* CalfCurve::arrow_cursor

Cached arrow (do not add point) cursor.

cur_pt

int CalfCurve::cur_pt

Currently selected point (when dragging/adding), or -1 if none is selected.

hand_cursor

GdkCursor* CalfCurve::hand_cursor

Cached hand (drag) cursor.

hide_current

bool CalfCurve::hide_current

If currently selected point is a candidate for deletion (ie. outside of graph+margin range).

parent

GtkWidget CalfCurve::parent

Base class instance members.

pencil_cursor

GdkCursor* CalfCurve::pencil_cursor

Cached pencil (add point) cursor.

point_limit

unsigned int CalfCurve::point_limit

Maximum number of points.

points

point_vector* CalfCurve::points

Array of points.

sink

EventSink* CalfCurve::sink

Interface for notification.

x0

float CalfCurve::x0

Coordinate ranges (in logical coordinates for top left and bottom right).

x1

float CalfCurve::x1

y0

float CalfCurve::y0

y1

float CalfCurve::y1

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

• /home/runner/work/lmms-fork/lmms-fork/plugins/LadspaEffect/calf/veal/src/calf/ctl_curve.h
• /home/runner/work/lmms-fork/lmms-fork/plugins/LadspaEffect/calf/veal/src/ctl_curve.cpp