167d767e0f
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@6614 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
98 lines
2.8 KiB
C++
98 lines
2.8 KiB
C++
//
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// "$Id$"
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//
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// Dial header file for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-2009 by Bill Spitzak and others.
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU Library General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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// USA.
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//
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// Please report all bugs and problems on the following page:
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//
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// http://www.fltk.org/str.php
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//
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/* \file
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Fl_Dial widget . */
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#ifndef Fl_Dial_H
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#define Fl_Dial_H
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#ifndef Fl_Valuator_H
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#include "Fl_Valuator.H"
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#endif
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// values for type():
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#define FL_NORMAL_DIAL 0 /**< type() for dial variant with dot */
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#define FL_LINE_DIAL 1 /**< type() for dial variant with line */
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#define FL_FILL_DIAL 2 /**< type() for dial variant with filled arc */
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/**
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The Fl_Dial widget provides a circular dial to control a
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single floating point value.
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<P ALIGN=CENTER>\image html dial.gif
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\image latex dial.eps "Fl_Dial" width=4cm
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Use type() to set the type of the dial to:
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<UL>
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<LI>FL_NORMAL_DIAL - Draws a normal dial with a knob. </LI>
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<LI>FL_LINE_DIAL - Draws a dial with a line. </LI>
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<LI>FL_FILL_DIAL - Draws a dial with a filled arc. </LI>
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</UL>
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*/
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class FL_EXPORT Fl_Dial : public Fl_Valuator {
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short a1,a2;
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protected:
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// these allow subclasses to put the dial in a smaller area:
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void draw(int X, int Y, int W, int H);
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int handle(int event, int X, int Y, int W, int H);
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void draw();
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public:
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int handle(int);
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/**
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Creates a new Fl_Dial widget using the given position, size,
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and label string. The default type is FL_NORMAL_DIAL.
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*/
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Fl_Dial(int x,int y,int w,int h, const char *l = 0);
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/**
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Sets Or gets the angles used for the minimum and maximum values. The default
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values are 45 and 315 (0 degrees is straight down and the angles
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progress clockwise). Normally angle1 is less than angle2, but if you
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reverse them the dial moves counter-clockwise.
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*/
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short angle1() const {return a1;}
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/** See short angle1() const */
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void angle1(short a) {a1 = a;}
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/** See short angle1() const */
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short angle2() const {return a2;}
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/** See short angle1() const */
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void angle2(short a) {a2 = a;}
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/** See short angle1() const */
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void angles(short a, short b) {a1 = a; a2 = b;}
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};
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#endif
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//
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// End of "$Id$".
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//
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