Loopp/src/gtrack.hxx

#ifndef LUPPP_G_TRACK_H
#define LUPPP_G_TRACK_H

#include <iostream>

#include <FL/Fl.H>
#include <FL/Fl_Group.H>
#include <FL/Fl_Slider.H>
#include <FL/Fl_Progress.H>
#include <FL/Fl_Native_File_Chooser.H>

#include "avtk/avtk_dial.h"
#include "avtk/avtk_button.h"
#include "avtk/avtk_background.h"


#include "worker.hxx"
#include "audiobuffer.hxx"
#include "eventhandler.hxx"

using namespace std;

static string choose_file()
{
  string path;
  Fl_Native_File_Chooser fnfc;
  fnfc.title("Pick a file");
  fnfc.type(Fl_Native_File_Chooser::BROWSE_FILE);
  //fnfc.filter("Wav\t*.wav");
  fnfc.directory( getenv("HOME") ); // default directory to use
  // Show native chooser
  switch ( fnfc.show() ) {
   case -1: printf("ERROR: %s\n", fnfc.errmsg());    break;  // ERROR
   case  1: printf("CANCEL\n");                      break;  // CANCEL
   default: printf("Loading directory: %s\n", fnfc.filename());    
    
    // update path and load it
    path = fnfc.filename();
    
    break;  // FILE CHOSEN
  }
  return path;
}

static void gtrack_button_callback(Fl_Widget *w, void *data) {
  int track = 0;
  if ( data )
    track = *(int*)data;
  //cout << "Button " << *(int*)data << " " << w->label() << " clicked" << endl;
  
  if ( strcmp( w->label() , "Rec" ) == 0 )
  {
    EventLooperState e = EventLooperState(track,Looper::STATE_RECORD_QUEUED);
    writeToDspRingbuffer( &e );
  }
  else if ( strcmp( w->label() , "Play" ) == 0 )
  {
    EventLooperState e = EventLooperState(track,Looper::STATE_PLAY_QUEUED);
    writeToDspRingbuffer( &e );
  }
  else if ( strcmp( w->label() , "Stop" ) == 0 )
  {
    EventLooperState e = EventLooperState(track,Looper::STATE_STOP_QUEUED);
    writeToDspRingbuffer( &e );
  }
  else if ( strcmp( w->label() , "+" ) == 0 )
  {
    EventLooperLoopLength e = EventLooperLoopLength(track, 2);
    writeToDspRingbuffer( &e );
  }
  else if ( strcmp( w->label() , "-" ) == 0 )
  {
    EventLooperLoopLength e = EventLooperLoopLength(track, 0.5);
    writeToDspRingbuffer( &e );
  }
  else if ( strcmp( w->label() , "Load" ) == 0 )
  {
    AudioBuffer* ab = Worker::loadSample( choose_file() );
    EventLooperLoad e = EventLooperLoad( track, 0 , ab );
    cout << "writing event ab ptr = " << ab  << endl;
    writeToDspRingbuffer( &e );
    cout << "writing event done" << endl;
  }
  else if ( strcmp( w->label() , "Vol" ) == 0 )
  {
    
  }
  else
  {
    cout << __FILE__ << __LINE__ << " Error: unknown command string" << endl;
  }
}

class GTrack : public Fl_Group
{
  public:
    GTrack(int x, int y, int w, int h, const char* l = 0 ) :
      Fl_Group(x, y, w, h),
      title( strdup(l) ),
      bg( x, y , w, h, title ),
      
      button1(x + 5, y + 24, 100, 18,"Rec"),
      button2(x + 5, y + 44, 100, 18,"Play"),
      button3(x + 5, y + 64, 100, 18,"Stop"),
      button4(x + 5, y + 84,  48, 18,"-"),
      button5(x +57, y + 84,  48, 18,"+"),
      
      button6(x + 5, y +104, 100, 18,"Load"),
      
      volume(x+55-22, y +175, 34, 34, "Vol"),
      
      dial1(x+15, y +135, 24, 24, "A"),
      dial2(x+45, y +135, 24, 24, "B"),
      dial3(x+75, y +135, 24, 24, "C"),
      
      progress(x+5, y+3, 100, 15, "prog")
    {
      ID = privateID++;
      
      button1.callback( gtrack_button_callback, &ID );
      button2.callback( gtrack_button_callback, &ID );
      button3.callback( gtrack_button_callback, &ID );
      button4.callback( gtrack_button_callback, &ID );
      button5.callback( gtrack_button_callback, &ID );
      button6.callback( gtrack_button_callback, &ID );
      
      volume.callback( gtrack_button_callback, 0 );
      
      progress.maximum(1.0f);
      progress.minimum(0.0f);
      
      end(); // close the group
    }
    
    ~GTrack()
    {
      free(title);
    }
    
    int ID;
    
    char* title;
    
    Avtk::Background bg;
    
    Avtk::Button button1;
    Avtk::Button button2;
    Avtk::Button button3;
    Avtk::Button button4;
    Avtk::Button button5;
    Avtk::Button button6;
    
    Avtk::Dial   volume;
    
    Avtk::Dial   dial1;
    Avtk::Dial   dial2;
    Avtk::Dial   dial3;
    
    Fl_Progress  progress;
    
    static int privateID;
};

#endif // LUPPP_G_TRACK_H