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//
// "$Id: Fl_Value_Dial.cxx,v 1.2 2005/05/18 11:34:30 hofmann Exp $"
//
// Value dial widget for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2004 by Bill Spitzak and others.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA.
//
// Please report all bugs and problems to "fltk-bugs@fltk.org".
//
#include <FL/Fl.H>
#include <FL/fl_draw.H>
#include <math.h>
#include "Fl_Value_Dial.H"
Fl_Value_Dial::Fl_Value_Dial(int X, int Y, int W, int H, const char*l)
: Fl_Dial(X,Y,W,H,l) {
step(1,100);
textfont_ = FL_HELVETICA;
textsize_ = 10;
textcolor_ = FL_BLACK;
}
void Fl_Value_Dial::draw() {
int sxx = x(), syy = y(), sww = w(), shh = h();
int bxx = x(), byy = y(), bww = w(), bhh = h();
if (damage()&FL_DAMAGE_ALL) draw_box(box(),sxx,syy,sww,shh,color());
Fl_Dial::draw(sxx+Fl::box_dx(box()),
syy+Fl::box_dy(box()),
sww-Fl::box_dw(box()),
shh-Fl::box_dh(box()));
char buf[128];
format(buf);
fl_font(textfont(), textsize());
fl_color(active_r() ? textcolor() : fl_inactive(textcolor()));
fl_draw(buf, bxx, byy + fl_height() - 2, bww, bhh, FL_ALIGN_TOP);
}
int Fl_Value_Dial::handle(int event) {
switch (event) {
case FL_KEYBOARD :
switch (Fl::event_key()) {
case FL_Left:
handle_drag(clamp(increment(value(),-1)));
handle_release();
return 1;
case FL_Right:
handle_drag(clamp(increment(value(),1)));
handle_release();
return 1;
default:
return 0;
}
break;
case FL_FOCUS :
case FL_UNFOCUS :
if (Fl::visible_focus()) {
redraw();
return 1;
} else return 0;
case FL_ENTER :
case FL_LEAVE :
return 1;
default:
return Fl_Dial::handle(event);
}
}
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