167 lines
4.0 KiB
C
167 lines
4.0 KiB
C
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/*******************************************************************************/
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/* Copyright (C) 2008 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 "Panner.H"
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/* 2D Panner widget. Supports various multichannel configurations. */
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enum {
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NONE = -1,
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R = 90,
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L = 270,
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C = 0,
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FL = 315,
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FR = 45,
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RL = 225,
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RR = 135,
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};
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/* multichannel layouts, in degrees */
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int Panner::_configs[][12] =
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{
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/* none, error condition? */
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{ NONE },
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/* mono, panner disabled */
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{ NONE },
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/* stereo */
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{ L, R },
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/* stereo + mono */
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{ L, R, C },
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/* quad */
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{ FL, FR, RL, RR },
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/* 5.1 */
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{ FL, FR, RL, RR, C },
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/* no such config */
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{ NONE },
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/* 7.1 */
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{ FL, FR, RL, RR, C, L, R },
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};
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Panner::Point *
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Panner::event_point ( void )
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{
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int X, Y, W, H;
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bbox( X, Y, W, H );
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W -= pw();
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H -= ph();
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for ( int i = _ins; i--; )
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{
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Point *p = &_points[ i ];
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if ( Fl::event_inside( X + ((p->x * (W / 2)) + (W / 2)),
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Y + ((p->y * (H / 2)) + (H / 2)), pw(), ph() ) )
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return p;
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}
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return NULL;
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}
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void
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Panner::draw ( void )
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{
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draw_box();
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// draw_box( FL_FLAT_BOX, x(), y(), w(), h(), FL_BLACK );
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draw_label();
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int tw, th, tx, ty;
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bbox( tx, ty, tw, th );
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fl_color( FL_WHITE );
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if ( _configs[ _outs ][0] >= 0 )
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{
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for ( int i = _outs; i--; )
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{
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int a = _configs[ _outs ][ i ];
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// FIXME: this is a hack... Why does fl_arc seem to put 0 degrees at 3 o'clock and inverted?
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a -= 90;
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a = 360 - a;
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fl_arc( tx, ty, tw, th, a - 3, a + 3 );
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}
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}
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tw -= pw();
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th -= ph();
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for ( int i = _ins; i--; )
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{
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Point *p = &_points[ i ];
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fl_color( (Fl_Color) 10 + i );
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const int bx = tx + ((tw / 2) * p->x + (tw / 2));
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const int by = ty + ((th / 2) * p->y + (th / 2));
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fl_rectf( bx, by, pw(), ph() );
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char pat[4];
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snprintf( pat, 4, "%d", i + 1 );
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fl_color( FL_BLACK );
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fl_font( FL_HELVETICA, ph() + 2 );
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fl_draw( pat, bx, by + ph() );
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}
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}
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int
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Panner::handle ( int m )
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{
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static Point *drag;
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switch ( m )
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{
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case FL_PUSH:
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if ( ( drag = event_point() ) )
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{
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printf( "bing\n" );
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return 1;
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}
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else
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return 0;
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case FL_RELEASE:
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drag = NULL;
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return 1;
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case FL_DRAG:
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{
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float X = Fl::event_x() - x();
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float Y = Fl::event_y() - y();
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drag->x = (float)(X / (w() / 2)) - 1.0f;
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drag->y = (float)(Y / (h() / 2)) - 1.0f;
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redraw();
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return 1;
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}
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}
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return 0;
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}
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