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Color by amplitude when drawing waveform.

This commit is contained in:
Jonathan Moore Liles 2008-02-16 02:41:25 -06:00
parent 043517166e
commit a819cdd7b8
2 changed files with 20 additions and 36 deletions
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55
Waveform.C
View File

@ -36,9 +36,8 @@ Waveform::Waveform ( int X, int Y, int W, int H, const char *L ) : Fl_Widget( X,
}
#if 0
void
Waveform::buble_draw ( void )
Waveform::bubble_draw ( void )
{
int inc = 10;
for ( tick_t x = 0; x < w() && x < _end; ++x )
@ -59,7 +58,6 @@ Waveform::buble_draw ( void )
}
}
#endif
int
Waveform::handle ( int m )
@ -117,15 +115,13 @@ Waveform::draw ( void )
void
Waveform::draw ( int X, int Y, int W, int H )
{
// fl_push_clip( X, Y, W, H );
fl_push_clip( X, Y, W, H );
fl_push_matrix();
fl_color( selection_color() );
int j;
float _scale = 1;
float _scale = 2;
int start = (_start + (X - x())) * 2;
@ -135,8 +131,23 @@ Waveform::draw ( int X, int Y, int W, int H )
float lo = _peaks[ start + j++ ] * _scale;
float hi = _peaks[ start + j++ ] * _scale;
int mid = Y + (H / 2);
if ( lo < -1.0 || hi > 1.0 )
fl_color( FL_RED );
else
fl_color( selection_color() );
// fl_color( velocity_colors[ 127 - (int)( 127 * fabs( hi - lo ) ) ] );
// FIXME: cache this stuff.
// fl_color( fl_color_average( selection_color(), fl_contrast( fl_darker( FL_BLUE ), selection_color() ), fabs( hi - lo ) ) );
fl_color( fl_color_average( FL_RED, selection_color(), fabs( hi - lo ) ) );
if ( lo < -0.5 || hi > 0.5 )
fl_color( FL_RED );
fl_line( x, mid + (H * lo), x, mid + (H * hi) );
}
@ -173,33 +184,5 @@ Waveform::draw ( int X, int Y, int W, int H )
fl_pop_matrix();
// fl_pop_clip();
fl_pop_clip();
}
#if 0
void
Waveform::draw ( void )
{
fl_push_clip( x(), y(), w(), h() );
fl_push_matrix();
int inc = 1;
int j = 0;
for ( tick_t x = 0; x < w() && x < _end; ++x )
{
float lo = _peaks[ _start + j++ ];
float hi = _peaks[ _start + j++ ];
int mid = y() + (h() / 2);
int rx = this->x() + x;
fl_color( selection_color() );
fl_line( rx, mid + (h() * lo), rx, mid + (h() * hi) );
}
fl_pop_matrix();
}
#endif

1
Waveform.H
View File

@ -51,6 +51,7 @@ public:
}
int handle ( int m );
void bubble_draw ( void );
void draw ( void );
void draw ( int X, int Y, int W, int H );