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// Fl_Counter.H
// A numerical value with up/down step buttons. From Forms.
#include <FL/Fl.H>
#include <FL/Fl_Counter.H>
#include <FL/fl_draw.H>
#include <FL/Fl_Input.H> // for default_font
void Fl_Counter::draw() {
int i; Fl_Boxtype boxtype[5];
boxtype[0] = box();
if (boxtype[0] == FL_UP_BOX) boxtype[0] = Fl_Input::default_box();
for (i=1; i<5; i++)
if (mouseobj == i)
boxtype[i] = down(box());
else
boxtype[i] = box();
int xx[5], ww[5];
if (type() == FL_NORMAL_COUNTER) {
int W = w()*15/100;
xx[1] = x(); ww[1] = W;
xx[2] = x()+1*W; ww[2] = W;
xx[0] = x()+2*W; ww[0] = w()-4*W;
xx[3] = x()+w()-2*W; ww[3] = W;
xx[4] = x()+w()-1*W; ww[4] = W;
} else {
int W = w()*20/100;
xx[2] = x(); ww[2] = W;
xx[0] = x()+W; ww[0] = w()-2*W;
xx[3] = x()+w()-1*W; ww[3] = W;
}
draw_box(boxtype[0], xx[0], y(), ww[0], h(), FL_WHITE);
fl_font(textfont(), textsize(),
Fl_Input::default_font(), Fl_Input::default_size());
fl_color(active_r() ? textcolor() : inactive(textcolor()));
char str[128]; format(str);
fl_draw(str, xx[0], y(), ww[0], h(), FL_ALIGN_CENTER);
if (!(damage()&FL_DAMAGE_ALL)) return; // only need to redraw text
if (type() == FL_NORMAL_COUNTER) {
draw_box(boxtype[1], xx[1], y(), ww[1], h(), color());
fl_draw_symbol("@-4<<", xx[1], y(), ww[1], h(), selection_color());
}
draw_box(boxtype[2], xx[2], y(), ww[2], h(), color());
fl_draw_symbol("@-4<", xx[2], y(), ww[2], h(), selection_color());
draw_box(boxtype[3], xx[3], y(), ww[3], h(), color());
fl_draw_symbol("@-4>", xx[3], y(), ww[3], h(), selection_color());
if (type() == FL_NORMAL_COUNTER) {
draw_box(boxtype[4], xx[4], y(), ww[4], h(), color());
fl_draw_symbol("@-4>>", xx[4], y(), ww[4], h(), selection_color());
}
}
void Fl_Counter::increment_cb() {
if (!mouseobj) return;
double v = value();
switch (mouseobj) {
case 1: v -= lstep_; break;
case 2: v = increment(v, -1); break;
case 3: v = increment(v, 1); break;
case 4: v += lstep_; break;
}
handle_drag(clamp(round(v)));
}
#define INITIALREPEAT .5
#define REPEAT .1
void Fl_Counter::repeat_callback(void* v) {
Fl_Counter* b = (Fl_Counter*)v;
if (b->mouseobj) {
Fl::add_timeout(REPEAT, repeat_callback, b);
b->increment_cb();
}
}
int Fl_Counter::calc_mouseobj() {
if (type() == FL_NORMAL_COUNTER) {
int W = w()*15/100;
if (Fl::event_inside(x(), y(), W, h())) return 1;
if (Fl::event_inside(x()+W, y(), W, h())) return 2;
if (Fl::event_inside(x()+w()-2*W, y(), W, h())) return 3;
if (Fl::event_inside(x()+w()-W, y(), W, h())) return 4;
} else {
int W = w()*20/100;
if (Fl::event_inside(x(), y(), W, h())) return 2;
if (Fl::event_inside(x()+w()-W, y(), W, h())) return 3;
}
return -1;
}
int Fl_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;
}
}
Fl_Counter::~Fl_Counter() {
Fl::remove_timeout(repeat_callback, this);
}
Fl_Counter::Fl_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(-1000000.0, 1000000.0);
Fl_Valuator::step(1, 10);
lstep_ = 1.0;
mouseobj = 0;
textfont_ = FL_HELVETICA;
textsize_ = FL_NORMAL_SIZE;
textcolor_ = FL_BLACK;
}
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