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Add omitted file Fl_Arc_Dial.C

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Jonathan Moore Liles 2008-04-20 16:49:21 -05:00
parent 8aa07ba9df
commit 357052d639
1 changed files with 104 additions and 0 deletions
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FL/Fl_Arc_Dial.C Normal file
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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. */
/*******************************************************************************/
#include "Fl_Arc_Dial.H"
#include <Fl/fl_draw.H>
#include <Fl/Fl.H>
int
Fl_Arc_Dial::handle ( int m )
{
/* Fl_Dial and friends should really handle mousewheel, but they don't in FTLK1 */
switch ( m )
{
case FL_MOUSEWHEEL:
{
if ( this != Fl::belowmouse() )
return 0;
int d = Fl::event_dy();
double v = increment( value(), d );
if ( v < minimum() )
v = minimum();
else if ( v > maximum() )
v = maximum();
value( v );
return 1;
}
}
return Fl_Dial::handle( m );
}
void
Fl_Arc_Dial::draw ( void )
{
int X = x();
int Y = y();
int W = w();
int H = h();
draw_box();
draw_label();
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();
fl_line_style( FL_SOLID, W / 6 );
X += W / 8;
Y += H / 8;
W -= W / 4;
H -= H / 4;
if ( box() == FL_NO_BOX )
{
/* draw backgrond arc */
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
{
const int d = 6;
/* account for edge conditions */
angle = angle < angle1() + d ? angle1() + d : angle;
angle = angle > angle2() - d ? angle2() - d : angle;
fl_arc( X, Y, W, H, 270 - (angle - d), 270 - (angle + d) );
fl_line_style( FL_SOLID, 0 );
}
}