zynaddsubfx

ZynAddSubFX open source synthesizer
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Fl_Osc_DialF.cpp (2376B)

      1 /*
      2   ZynAddSubFX - a software synthesizer
      3 
      4   Fl_Osc_DialF.cpp - OSC Powered Real Valued Dial
      5   Copyright (C) 2016 Mark McCurry
      6 
      7   This program is free software; you can redistribute it and/or
      8   modify it under the terms of the GNU General Public License
      9   as published by the Free Software Foundation; either version 2
     10   of the License, or (at your option) any later version.
     11 */
     12 #include "Fl_Osc_DialF.H"
     13 #include "Fl_Osc_Interface.h"
     14 #include "Fl_Osc_Pane.H"
     15 #include <cstdlib>
     16 #include <cstring>
     17 #include <cmath>
     18 #include <cassert>
     19 #include <sstream>
     20 
     21 template<typename A, typename B>
     22 B string_cast(const A &a)
     23 {
     24     std::stringstream s;
     25     s.precision(3);
     26     B b;
     27     s << " " << a << " ";
     28     s >> b;
     29     return b;
     30 }
     31 
     32 static void callback_fn_dialf(Fl_Widget *w, void *)
     33 {
     34     ((Fl_Osc_DialF*)w)->cb();
     35 }
     36 
     37 Fl_Osc_DialF::Fl_Osc_DialF(int X, int Y, int W, int H, const char *label)
     38     :WidgetPDial(X,Y,W,H, label), Fl_Osc_Widget()
     39 {
     40     //bounds(0.0, 127.0f);
     41     WidgetPDial::callback(callback_fn_dialf);
     42 }
     43 
     44 
     45 void Fl_Osc_DialF::init(const char *path)
     46 {
     47     Fl_Osc_Pane *pane = fetch_osc_pane(this);
     48     assert(pane);
     49     osc = pane->osc;
     50     ext = path;
     51     loc = pane->base;
     52     oscRegister(path);
     53     integer_step = false;
     54 };
     55 
     56 Fl_Osc_DialF::~Fl_Osc_DialF(void)
     57 {}
     58 
     59 void Fl_Osc_DialF::callback(Fl_Callback *cb, void *p)
     60 {
     61     cb_data.first = cb;
     62     cb_data.second = p;
     63 }
     64 
     65 int Fl_Osc_DialF::handle(int ev)
     66 {
     67     bool middle_mouse = (ev == FL_PUSH && Fl::event_state(FL_BUTTON2) && !Fl::event_shift());
     68     bool ctl_click    = (ev == FL_PUSH && Fl::event_state(FL_BUTTON3) && Fl::event_ctrl());
     69     bool shift_middle = (ev == FL_PUSH && Fl::event_state(FL_BUTTON2) && Fl::event_shift());
     70     if(middle_mouse || ctl_click) {
     71         printf("Trying to learn...\n");
     72         osc->write("/learn", "s", (loc+ext).c_str());
     73         return 1;
     74     } else if(shift_middle) {
     75         osc->write("/unlearn", "s", (loc+ext).c_str());
     76         return 1;
     77     }
     78     return WidgetPDial::handle(ev);
     79 }
     80 
     81 void Fl_Osc_DialF::OSC_value(float v)
     82 {
     83     value(v);
     84 }
     85 
     86 void Fl_Osc_DialF::update(void)
     87 {
     88     oscWrite(ext);
     89 }
     90 
     91 void Fl_Osc_DialF::cb(void)
     92 {
     93     assert(osc);
     94 
     95     oscWrite(ext, "f", (float)value());
     96 
     97     if(cb_data.first)
     98         cb_data.first(this, cb_data.second);
     99 //    label_str = string_cast<float,string>(val);
    100 //    label("                ");
    101 //    label(label_str.c_str());
    102 }