//// "$Id: Fl_Value_Output.cxx,v 1.1.1.1 2003/08/07 21:18:40 jasonk Exp $"//// Value output widget for the Fast Light Tool Kit (FLTK).//// Copyright 1998-1999 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@easysw.com".//// Fltk widget for drag-adjusting a floating point value.// This is much lighter than Fl_Value_Input because it has no text editor// If step() is zero then it can be used to display a floating-point value#include <FL/Fl.H>#include <FL/Fl_Value_Output.H>#include <FL/fl_draw.H>void Fl_Value_Output::draw() {  Fl_Boxtype b = box() ? box() : FL_DOWN_BOX;  int X = x()+Fl::box_dx(b);  int Y = y()+Fl::box_dy(b);  int W = w()-Fl::box_dw(b);  int H = h()-Fl::box_dh(b);  if (damage()&~FL_DAMAGE_CHILD)    draw_box(b, color());  else {    fl_color(color());    fl_rectf(X, Y, W, H);  }  char buf[128];  format(buf);  fl_color(active_r() ? textcolor() : inactive(textcolor()));  fl_font(textfont(), textsize());  fl_draw(buf,X+3,Y,W-6,H,FL_ALIGN_LEFT);}int Fl_Value_Output::handle(int event) {  if (!step()) return 0;  double v;  int delta;  int mx = Fl::event_x();  static int ix, drag;  switch (event) {  case FL_PUSH:    ix = mx;    drag = Fl::event_button();    handle_push();    return 1;  case FL_DRAG:    delta = Fl::event_x()-ix;    if (delta > 5) delta -= 5;    else if (delta < -5) delta += 5;    else delta = 0;    switch (drag) {    case 3: v = increment(previous_value(),delta*100); break;    case 2: v = increment(previous_value(),delta*10); break;    default:v = increment(previous_value(),delta); break;    }    v = round(v);    handle_drag(soft()?softclamp(v):clamp(v));;    return 1;  case FL_RELEASE:    handle_release();    return 1;  default:    return 0;  }}Fl_Value_Output::Fl_Value_Output(int x,int y,int w,int h,const char *l): Fl_Valuator(x,y,w,h,l) {  box(FL_NO_BOX);  align(FL_ALIGN_LEFT);  textfont_ = FL_HELVETICA;  textsize_ = FL_NORMAL_SIZE;  textcolor_ = FL_BLACK;  soft_ = 0;}//// End of "$Id: Fl_Value_Output.cxx,v 1.1.1.1 2003/08/07 21:18:40 jasonk Exp $".//