class Fl_Dial

Class Hierarchy

Fl_Valuator
   |
   +----Fl_Dial

Include Files

#include <FL/Fl_Dial.H>

Description

The Fl_Dial widget provides a circular dial to control a single floating point value.

Fl_Dial widget.

Methods

Fl_Dial
~Fl_Dial
angle1
angle2
angles
type

Fl_Dial::Fl_Dial(int x, int y, int w, int h, const char *label = 0)

Creates a new Fl_Dial widget using the given position, size, and label string. The default type is FL_NORMAL_DIAL.

short Fl_Dial::angle1() const;
void Fl_Dial::angle1(short);
short Fl_Dial::angle2() const;
void Fl_Dial::angle2(short);
void Fl_Dial::angles(short a, short b);

Sets the angles used for the minimum and maximum values. The default values are 45 and 315 (0 degrees is straight down and the angles progress clockwise). Normally angle1 is less than angle2, but if you reverse them the dial moves counter-clockwise.

type(uchar)

Sets the type of the dial to:

FL_NORMAL_DIAL - Draws a normal dial with a knob.
FL_LINE_DIAL - Draws a dial with a line.
FL_FILL_DIAL - Draws a dial with a filled arc.

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