Fl_Dial Class Reference

#include <Fl_Dial.H>

Inheritance diagram for Fl_Dial:

Collaboration diagram for Fl_Dial:

List of all members.

Public Member Functions
int	handle (int)
	Fl_Dial (int x, int y, int w, int h, const char *l=0)
short	angle1 () const
void	angle1 (short a)
short	angle2 () const
void	angle2 (short a)
void	angles (short a, short b)
Protected Member Functions
void	draw (int X, int Y, int W, int H)
int	handle (int event, int X, int Y, int W, int H)
void	draw ()

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Detailed Description

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

Use type() to set 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.

Definition at line 56 of file Fl_Dial.H.

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Constructor & Destructor Documentation

Fl_Dial::Fl_Dial	(	int	X,
		int	Y,
		int	W,
		int	H,
		const char *	l = 0
	)

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

Definition at line 152 of file Fl_Dial.cxx.

References Fl_Widget::box(), FL_INACTIVE_COLOR, FL_OVAL_BOX, and Fl_Widget::selection_color().

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Member Function Documentation

short Fl_Dial::angle1

(

)

const [inline]

Sets Or gets 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.

Definition at line 81 of file Fl_Dial.H.

void Fl_Dial::angle1

(

short

a

)

[inline]

See short angle1() const

Definition at line 83 of file Fl_Dial.H.

void Fl_Dial::angle2

(

short

a

)

[inline]

See short angle1() const

Definition at line 87 of file Fl_Dial.H.

short Fl_Dial::angle2

(

)

const [inline]

See short angle1() const

Definition at line 85 of file Fl_Dial.H.

void Fl_Dial::angles	(	short	a,
		short	b
	)		[inline]

See short angle1() const

Definition at line 89 of file Fl_Dial.H.

References b.

void Fl_Dial::draw

(

void

)

[protected, virtual]

Draws dial at current position and size.

Implements Fl_Widget.

Definition at line 101 of file Fl_Dial.cxx.

References Fl_Widget::draw_label(), Fl_Widget::h(), Fl_Widget::w(), Fl_Widget::x(), and Fl_Widget::y().

void Fl_Dial::draw	(	int	X,
		int	Y,
		int	W,
		int	H
	)		[protected]

Draws dial at given position and size.

Parameters:

[in]

X,Y,W,H

position and size

Definition at line 39 of file Fl_Dial.cxx.

References _FL_ROUND_UP_BOX, Fl_Widget::active_r(), Fl_Widget::box(), Fl::box_dh(), Fl::box_dw(), Fl::box_dx(), Fl::box_dy(), Fl_Widget::color(), Fl_Widget::damage(), Fl_Widget::draw_box(), fl_arc(), fl_begin_loop(), fl_begin_polygon(), fl_circle(), fl_color(), FL_DAMAGE_ALL, fl_end_loop(), fl_end_polygon(), FL_FILL_DIAL, FL_FOREGROUND_COLOR, fl_inactive(), fl_pie(), fl_pop_matrix(), fl_push_matrix(), fl_rotate(), fl_scale(), fl_translate(), fl_vertex(), Fl_Valuator::maximum(), Fl_Valuator::minimum(), Fl_Widget::selection_color(), Fl_Widget::type(), and Fl_Valuator::value().

int Fl_Dial::handle

(

int

e

)

[virtual]

Allow subclasses to handle event based on current position and size.

Reimplemented from Fl_Widget.

Definition at line 148 of file Fl_Dial.cxx.

References Fl_Widget::h(), handle(), Fl_Widget::w(), Fl_Widget::x(), and Fl_Widget::y().

int Fl_Dial::handle	(	int	event,
		int	X,
		int	Y,
		int	W,
		int	H
	)		[protected]

Allows subclasses to handle event based on given position and size.

Parameters:

[in]

event,X,Y,W,H

event to handle, related position and size.

Definition at line 110 of file Fl_Dial.cxx.

References Fl_Valuator::clamp(), Fl_Widget_Tracker::deleted(), Fl::event_x(), Fl::event_y(), FL_DRAG, FL_ENTER, FL_LEAVE, FL_PUSH, FL_RELEASE, Fl_Valuator::handle_drag(), Fl_Valuator::handle_push(), Fl_Valuator::handle_release(), M_PI, Fl_Valuator::maximum(), Fl_Valuator::minimum(), Fl_Valuator::round(), val, and Fl_Valuator::value().

Referenced by handle().

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

• fltk-1.3.0rc3/FL/Fl_Dial.H
• fltk-1.3.0rc3/src/Fl_Dial.cxx