counter.cpp

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#include <FL/Fl.H>
#include "Counter.h"
#include <FL/fl_draw.H>

void Counter::draw() {
  int i; Fl_Boxtype boxtype[3];
  //Fl_Color selcolor;

  boxtype[0] = box();
  if (boxtype[0] == FL_UP_BOX) boxtype[0] = FL_DOWN_BOX;
  for (i=1; i<3; i++)
    if (mouseobj == i)
      boxtype[i] = down(box());
    else
      boxtype[i] = box();

  int xx[3], yy[3], ww[3], hh[3];

    
    xx[1] = x()+75*w()/100;yy[1]=y(); ww[1]=25*w()/100 ;hh[1]=50*h()/100;
    xx[0] = x();yy[0]=y(); ww[0] = 75*w()/100;hh[0]=h();
    xx[2] = x()+75*w()/100;yy[2]=y()+50*h()/100;ww[2]=25*w()/100;hh[2]=50*h()/100;
  

  draw_box(boxtype[0], xx[0], yy[0], ww[0], hh[0], FL_WHITE);
  fl_font(textfont(), textsize());
  fl_color(active_r() ? textcolor() : inactive(textcolor()));
  char str[128]; format(str);
  fl_draw(str, xx[0], yy[0], ww[0], hh[0], FL_ALIGN_CENTER);
  if (!(damage()&FL_DAMAGE_ALL)) return; // only need to redraw text
  draw_box(boxtype[1], xx[1], yy[1], ww[1], hh[1], color());
  fl_color(active_r() ? textcolor() : inactive(textcolor())); 
  fl_draw("+",  xx[1], yy[1], ww[1], hh[1], FL_ALIGN_CENTER);
  draw_box(boxtype[2], xx[2], yy[2], ww[2], hh[2], color());
  fl_color(active_r() ? textcolor() : inactive(textcolor()));
  fl_draw("-",  xx[2], yy[2], ww[2], hh[2], FL_ALIGN_CENTER);

}

void Counter::increment_cb() {
  if (!mouseobj) return;
  double v = value();
  switch (mouseobj) {
  case 1: v += lstep_; break;
  case 2: v -= lstep_; break;
  }
  handle_drag(clamp(round(v)));
}

#define INITIALREPEAT .5
#define REPEAT .1

void Counter::repeat_callback(void* v) {
  Counter* b = (Counter*)v;
  if (b->mouseobj) {
    Fl::add_timeout(REPEAT, repeat_callback, b);
    b->increment_cb();
  }
}

int Counter::calc_mouseobj() {

    double xx[3];double yy[3];double ww[3];double hh[3];
    xx[1] = x()+75*w()/100;yy[1]=y(); ww[1]=25*w()/100 ;hh[1]=50*h()/100;
    xx[0] = x();yy[0]=y(); ww[0] = 75*w()/100;hh[0]=h();
    xx[2] = x()+75*w()/100;yy[2]=y()+50*h()/100;ww[2]=25*w()/100;hh[2]=50*h()/100;
    if (Fl::event_inside((int)xx[1],(int)yy[1],(int)ww[1],(int)hh[1])) return 1;
    if (Fl::event_inside((int)xx[2],(int)yy[2],(int)ww[2],(int)hh[2])) return 2;

  return -1;
}

int Counter::handle(int event) {
  int i;
  switch (event) {
  case FL_RELEASE:
    if (mouseobj) {
      Fl::remove_timeout(repeat_callback, this);
      mouseobj = 0;
      redraw();
    }
    handle_release();
    return 1;
  case FL_PUSH:
    handle_push();
  case FL_DRAG:
    i = calc_mouseobj();
    if (i != mouseobj) {
      Fl::remove_timeout(repeat_callback, this);
      mouseobj = i;
      if (i) Fl::add_timeout(INITIALREPEAT, repeat_callback, this);
      increment_cb();
      redraw();
    }
    return 1;
  default:
    return 0;
  }
}

Counter::~Counter() {
  Fl::remove_timeout(repeat_callback, this);
}

Counter::Counter(int x, int y, int w, int h, const char* l)
  : Fl_Valuator(x, y, w, h, l) {
  box(FL_UP_BOX);
  selection_color(FL_INACTIVE_COLOR); // was FL_BLUE
  align(FL_ALIGN_BOTTOM);
  bounds(0, 100);
  Fl_Valuator::step(1, 1);
  lstep_ = 1;
  mouseobj = 0;
  textfont_ = FL_HELVETICA;
  textsize_ = FL_NORMAL_SIZE;
  textcolor_ = FL_BLACK;
}