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Add custom Fl_Arc_Dial.

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Jonathan Moore Liles 2008-03-13 23:27:13 -05:00
parent 2715326ee7
commit 649158d429
1 changed files with 80 additions and 0 deletions
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/*******************************************************************************/
/* 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.H>
class Fl_Arc_Dial : public Fl_Dial
{
public:
Fl_Arc_Dial ( int X, int Y, int W, int H, const char *L = 0 ) :
Fl_Dial( X, Y, W, H, L )
{
box( FL_OVAL_BOX );
}
protected:
virtual void
draw ( void )
{
int X = x();
int Y = y();
int W = w();
int H = h();
if ( damage() & FL_DAMAGE_ALL )
draw_box( box(), X, Y, W, H, color() );
X += Fl::box_dx(box());
Y += Fl::box_dy(box());
W -= Fl::box_dw(box());
H -= Fl::box_dh(box());
double angle = ( angle2() - angle1() ) * ( value() - minimum()) / ( maximum() - minimum() ) + angle1();
draw_box();
draw_label();
fl_line_style( FL_SOLID, W / 6 );
X += W / 8;
Y += H / 8;
W -= W / 4;
H -= H / 4;
fl_color( fl_color_average( FL_BLACK, selection_color(), 0.80f ) );
fl_arc( X, Y, W, H, 270 - angle1(), 270 - angle2() );
fl_color( selection_color() );
if ( type() == FL_FILL_DIAL )
fl_arc( X, Y, W, H, 270 - angle1(), 270 - angle );
else
fl_arc( X, Y, W, H, 270 - angle - 3, 270 - angle + 3 );
fl_line_style( FL_SOLID, 0 );
}
};