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FLTK - Fast Light Tool Kit - https://github.com/fltk/fltk - cross platform GUI development
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97 lines
2.8 KiB
97 lines
2.8 KiB
// |
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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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