112 lines
3.2 KiB
C++
112 lines
3.2 KiB
C++
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/*******************************************************************************/
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/* Copyright (C) 2013 Jonathan Moore Liles */
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/* */
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/* This program is free software; you can redistribute it and/or modify it */
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/* under the terms of the GNU General Public License as published by the */
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/* Free Software Foundation; either version 2 of the License, or (at your */
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/* option) any later version. */
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/* */
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/* This program is distributed in the hope that it will be useful, but WITHOUT */
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/* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */
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/* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for */
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/* more details. */
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/* */
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/* You should have received a copy of the GNU General Public License along */
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/* with This program; see the file COPYING. If not,write to the Free Software */
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/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/*******************************************************************************/
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#include "Fl_DialX.H"
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#include <FL/Fl.H>
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#include <FL/fl_draw.H>
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void
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Fl_DialX::draw ( void )
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{
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int X,Y,S;
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{
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int ox, oy, ww, hh, side;
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ox = x();
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oy = y();
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ww = w();
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hh = h();
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if (ww > hh)
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{
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side = hh;
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ox = ox + (ww - side) / 2;
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}
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else
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{
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side = ww;
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oy = oy + (hh - side) / 2;
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}
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side = w() > h() ? hh : ww;
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X = ox;
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Y = oy;
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S = side;
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}
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draw_box();
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draw_label();
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double angle = ( angle2() - angle1() ) * ( value() - minimum()) / ( maximum() - minimum() ) + angle1();
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fl_draw_box( box(), X, Y, S, S, color() );
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/* shrink a bit */
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int OX = x();
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int OY = y();
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X += S / 8;
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Y += S / 8;
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int OS = S;
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S -= S / 4;
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fl_line_style( FL_SOLID, S / 12 );
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/* background arc */
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fl_color( fl_darker( color() ) );
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fl_arc( X, Y, S, S, 270 - angle1(), 270 - angle2() );
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/* foreground arc */
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fl_color( selection_color() );
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fl_arc( X, Y, S, S, 270 - angle1(), 270 - angle );
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fl_line_style( FL_SOLID, 0 );
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if ( active_r() )
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{
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int W = OS;
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int H = OS;
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fl_push_matrix();
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fl_translate(OX+W/2, OY+H/2);
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fl_scale(W, H);
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fl_rotate(310+angle);
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fl_color( fl_color_add_alpha( FL_WHITE, 127 ));
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fl_begin_polygon(); fl_circle(-0.26, 0.26, 0.12); fl_end_polygon();
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fl_color( FL_WHITE );
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fl_begin_polygon(); fl_circle(-0.26, 0.26, 0.06); fl_end_polygon();
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fl_pop_matrix();
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}
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fl_color( fl_contrast( labelcolor(), color() ) );
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if ( Fl::belowmouse() == this )
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{
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char s[10];
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fl_font( FL_HELVETICA, 10 );
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snprintf( s, sizeof( s ), "%.1f", value() );
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fl_color( FL_FOREGROUND_COLOR );
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fl_draw( s, X, Y, S, S, FL_ALIGN_CENTER );
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}
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}
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