non/FL/Fl_DialX.C

122 lines
3.4 KiB
C++
Raw Normal View History

/*******************************************************************************/
/* Copyright (C) 2013 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_DialX.H"
#include <FL/Fl.H>
#include <FL/fl_draw.H>
void
Fl_DialX::draw ( void )
{
int X,Y,S;
int act = active_r();
{
int ox, oy, ww, hh, side;
ox = x();
oy = y();
ww = w();
hh = h();
if (ww > hh)
{
side = hh;
ox = ox + (ww - side) / 2;
}
else
{
side = ww;
oy = oy + (hh - side) / 2;
}
side = w() > h() ? hh : ww;
X = ox;
Y = oy;
S = side;
}
draw_box();
draw_label();
double angle = ( angle2() - angle1() ) * ( value() - minimum()) / ( maximum() - minimum() ) + angle1();
fl_draw_box( box(), X, Y, S, S, color() );
/* shrink a bit */
int OX = x();
int OY = y();
X += S / 8;
Y += S / 8;
int OS = S;
S -= S / 4;
fl_line_style( FL_SOLID, S / 12 );
/* background arc */
Fl_Color c = fl_darker( color() );
if ( !act )
c = fl_inactive( c );
fl_color( c );
fl_arc( X, Y, S, S, 270 - angle1(), 270 - angle2() );
/* foreground arc */
c = selection_color();
if ( !act )
c = fl_inactive( c );
fl_color(c);
fl_arc( X, Y, S, S, 270 - angle1(), 270 - angle );
fl_line_style( FL_SOLID, 0 );
if ( act )
{
int W = OS;
int H = OS;
fl_push_matrix();
fl_translate(OX+W/2, OY+H/2);
fl_scale(W, H);
fl_rotate(310+angle);
fl_color( fl_color_add_alpha( FL_WHITE, 127 ));
fl_begin_polygon(); fl_circle(-0.26, 0.26, 0.12); fl_end_polygon();
fl_color( FL_WHITE );
fl_begin_polygon(); fl_circle(-0.26, 0.26, 0.06); fl_end_polygon();
fl_pop_matrix();
}
fl_color( fl_contrast( labelcolor(), color() ) );
if ( Fl::belowmouse() == this )
{
char s[10];
fl_font( FL_HELVETICA, 10 );
snprintf( s, sizeof( s ), "%.1f", value() );
fl_color( FL_FOREGROUND_COLOR );
fl_draw( s, X, Y, S, S, FL_ALIGN_CENTER );
}
}