107 lines
3.1 KiB
C
107 lines
3.1 KiB
C
|
|
/*******************************************************************************/
|
|
/* 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 );
|
|
do_callback();
|
|
|
|
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 );
|
|
}
|
|
}
|