Fl_Dial.H

 
/*******************************************************************************/
/* Copyright (C) 2008 Jonathan Moore Liles                                     */
/*                                                                             */
/* This program is free software; you can redistribute it and/or modify it     */
/* under the terms of the GNU General Public License as published by the       */
/* Free Software Foundation; either version 2 of the License, or (at your      */
/* option) any later version.                                                  */
/*                                                                             */
/* This program 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 General Public License for   */
/* more details.                                                               */
/*                                                                             */
/* You should have received a copy of the GNU General Public License along     */
/* with This program; see the file COPYING.  If not,write to the Free Software */
/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
/*******************************************************************************/
 
/* simple stylistic variation on Fl_Dial */
 
#pragma once
 
#include <FL/Fl_Dial_Base.H>
#include <FL/Fl_Image.H>
#include <FL/Fl_Group.H>
#include <FL/Fl_Window.H>
 
class Fl_Dial : public Fl_Dial_Base
{
    static int _default_style;
    static Fl_Image *_default_image;
 
    int _scaleticks;
 
    Fl_Image *_pixmap;
    int _last_pixmap_index;
 
    void draw_knob ( int type );
    void draw_scale ( int ox,  int oy,  int side );
    void draw_cursor ( int ox,  int oy,  int sidei );
 
    void get_knob_dimensions ( int *X, int *Y, int *S );
 
protected:
 
    virtual int handle ( int );
    virtual void draw ( void );
    virtual void draw_box ( void );
    
public:
 
    void scaleticks ( int tck );
 
    int
    type ( void ) const
        { 
        if ( Fl_Dial_Base::type() == DEFAULT )
            return Fl_Dial::_default_style;
        else
            return Fl_Dial_Base::type();
        }
 
    void type ( int n )
        { 
            Fl_Dial_Base::type( n );
        }
 
    /* virtual void value_damage ( void ) */
    /*     { */
    /*     if ( window() ) */
    /*         window()->damage( FL_DAMAGE_ALL, x(), y(), w(), h() ); */
    /*     } */
 
    static void default_style ( int n ) { Fl_Dial::_default_style = n; }
    static void default_image ( Fl_Image *i ) { Fl_Dial::_default_image = i; }
 
    void pixmap ( Fl_Image *i ) { _pixmap = i; }
 
    Fl_Image* pixmap ( void ) { return _pixmap; }
 
    enum 
    {
        DEFAULT,
        BURNISHED_DIAL,
        ARC_DIAL,
        PLASTIC_DIAL,
        PIXMAP_DIAL
    };
 
 
    Fl_Dial ( int X, int Y, int W, int H, const char *L = 0 ) :
        Fl_Dial_Base( X, Y, W, H, L )
        {
            _scaleticks = 12;
            
            _pixmap = 0;
            _last_pixmap_index = -1;
 
            box( FL_NO_BOX );
            type( DEFAULT );
        }
 
};