mirror of https://github.com/fltk/fltk
98 lines
2.8 KiB
C++
98 lines
2.8 KiB
C++
//
|
|
// "$Id$"
|
|
//
|
|
// Dial header file for the Fast Light Tool Kit (FLTK).
|
|
//
|
|
// Copyright 1998-2010 by Bill Spitzak and others.
|
|
//
|
|
// This library is free software; you can redistribute it and/or
|
|
// modify it under the terms of the GNU Library General Public
|
|
// License as published by the Free Software Foundation; either
|
|
// version 2 of the License, or (at your option) any later version.
|
|
//
|
|
// This library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
// Library General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Library General Public
|
|
// License along with this library; if not, write to the Free Software
|
|
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
|
|
// USA.
|
|
//
|
|
// Please report all bugs and problems on the following page:
|
|
//
|
|
// http://www.fltk.org/str.php
|
|
//
|
|
|
|
/* \file
|
|
Fl_Dial widget . */
|
|
|
|
#ifndef Fl_Dial_H
|
|
#define Fl_Dial_H
|
|
|
|
#ifndef Fl_Valuator_H
|
|
#include "Fl_Valuator.H"
|
|
#endif
|
|
|
|
// values for type():
|
|
#define FL_NORMAL_DIAL 0 /**< type() for dial variant with dot */
|
|
#define FL_LINE_DIAL 1 /**< type() for dial variant with line */
|
|
#define FL_FILL_DIAL 2 /**< type() for dial variant with filled arc */
|
|
|
|
/**
|
|
The Fl_Dial widget provides a circular dial to control a
|
|
single floating point value.
|
|
<P ALIGN=CENTER>\image html dial.png
|
|
\image latex dial.png "Fl_Dial" width=4cm
|
|
Use type() to set the type of the dial to:
|
|
<UL>
|
|
<LI>FL_NORMAL_DIAL - Draws a normal dial with a knob. </LI>
|
|
<LI>FL_LINE_DIAL - Draws a dial with a line. </LI>
|
|
<LI>FL_FILL_DIAL - Draws a dial with a filled arc. </LI>
|
|
</UL>
|
|
|
|
*/
|
|
class FL_EXPORT Fl_Dial : public Fl_Valuator {
|
|
|
|
short a1,a2;
|
|
|
|
protected:
|
|
|
|
// these allow subclasses to put the dial in a smaller area:
|
|
void draw(int X, int Y, int W, int H);
|
|
int handle(int event, int X, int Y, int W, int H);
|
|
void draw();
|
|
|
|
public:
|
|
|
|
int handle(int);
|
|
/**
|
|
Creates a new Fl_Dial widget using the given position, size,
|
|
and label string. The default type is FL_NORMAL_DIAL.
|
|
*/
|
|
Fl_Dial(int x,int y,int w,int h, const char *l = 0);
|
|
/**
|
|
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.
|
|
*/
|
|
short angle1() const {return a1;}
|
|
/** See short angle1() const */
|
|
void angle1(short a) {a1 = a;}
|
|
/** See short angle1() const */
|
|
short angle2() const {return a2;}
|
|
/** See short angle1() const */
|
|
void angle2(short a) {a2 = a;}
|
|
/** See short angle1() const */
|
|
void angles(short a, short b) {a1 = a; a2 = b;}
|
|
|
|
};
|
|
|
|
#endif
|
|
|
|
//
|
|
// End of "$Id$".
|
|
//
|