158 lines
3.9 KiB
C
158 lines
3.9 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 <stdio.h>
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#include <FL/Enumerations.H>
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#include <FL/Fl.H>
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#include "Waveform.H"
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#include "Clip.H"
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// extern Timeline timeline;
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// #include "Timeline.H"
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#include <math.h>
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extern Fl_Color velocity_colors[];
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Waveform::Waveform ( int X, int Y, int W, int H, const char *L ) : Fl_Widget( X, Y, W, H, L )
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{
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_scale = 1;
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_clip = NULL;
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_start = _end = 0;
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}
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int measure = 50;
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void
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Waveform::draw ( void )
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{
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// draw_box( FL_PLASTIC_UP_BOX, x(), y(), w(), h(), color() );
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/* fl_color( fl_lighter( color() ) ); */
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/* for ( int nx = x(); nx < x() + w(); ++nx ) */
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/* if ( ! (nx % measure) ) */
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/* fl_line( nx, y(), nx, y() + h() ); */
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int X, Y, W, H;
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fl_clip_box( x(), y(), w(), h(), X, Y, W, H );
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draw( X, y(), W, h() );
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}
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void
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Waveform::read_peaks ( tick_t X, float *hi, float *lo )
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{
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_clip->peaks()->read( X, hi, lo );
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}
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void
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Waveform::draw ( int X, int Y, int W, int H )
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{
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fl_push_clip( X, Y, W, H );
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fl_push_matrix();
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int j;
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int start = (_start + (X - x())) * 2;
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j = 0;
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for ( int x = X; x < X + W; ++x )
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{
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// read_peaks( x, &hi, &lo );
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Peak p = (*_clip->peaks())[ x ];
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int mid = Y + (H / 2);
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// FIXME: cache this stuff.
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// fl_color( fl_color_average( selection_color(), fl_contrast( fl_darker( FL_BLUE ), selection_color() ), fabs( hi - lo ) ) );
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fl_color( fl_color_average( FL_RED, selection_color(), fabs( p.max - p.min ) ) );
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p.max *= _scale;
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p.min *= _scale;
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if ( p.min < -1.0 || p.max > 1.0 )
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fl_color( FL_RED );
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fl_line( x, mid + (H / 2 * p.min), x, mid + (H / 2 * p.max) );
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}
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fl_color( fl_darker( fl_darker( selection_color() ) ) );
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fl_line_style( FL_SOLID, 2 );
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fl_begin_line();
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for ( int x = X; x < X + W; ++x )
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{
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Peak p = (*_clip->peaks())[ x ];
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p.min *= _scale;
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fl_vertex( x, Y + (H / 2) + ((float)H / 2 * p.min ));
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}
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fl_end_line();
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fl_begin_line();
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for ( int x = X; x < X + W; ++x )
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{
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Peak p = (*_clip->peaks())[ x ];
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p.max *= _scale;
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fl_vertex( x, Y + (H / 2) + ((float)H / 2 * p.max ));
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}
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fl_end_line();
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fl_line_style( FL_SOLID, 0 );
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fl_pop_matrix();
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fl_pop_clip();
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}
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void
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Waveform::normalize ( void )
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{
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float mhi, mlo;
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_clip->peaks()->downsample( _start, _end, &mhi, &mlo );
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_scale = 1.0f / (float)mhi;
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if ( _scale * mlo < -1.0 )
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_scale = 1 / fabs( mlo );
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_scale = fabs( _scale );
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redraw();
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}
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