//// "$Id: Fl_Adjuster.cxx,v 1.1.1.1 2003/08/07 21:18:39 jasonk Exp $"//// Adjuster 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".//#include <FL/Fl.H>#include <FL/Fl_Adjuster.H>#include <FL/Fl_Bitmap.H>#include <FL/fl_draw.H>#include "fastarrow.h"static Fl_Bitmap fastarrow(fastarrow_bits, fastarrow_width, fastarrow_height);#include "mediumarrow.h"static Fl_Bitmap mediumarrow(mediumarrow_bits, mediumarrow_width, mediumarrow_height);#include "slowarrow.h"static Fl_Bitmap slowarrow(slowarrow_bits, slowarrow_width, slowarrow_height);// changing the value does not change the appearance:void Fl_Adjuster::value_damage() {}void Fl_Adjuster::draw() {  int dx, dy, W, H;  if (w()>=h()) {    dx = W = w()/3;    dy = 0; H = h();  } else {    dx = 0; W = w();    dy = H = h()/3;  }  draw_box(drag==1?FL_DOWN_BOX:box(), x(),  y()+2*dy, W, H, color());  draw_box(drag==2?FL_DOWN_BOX:box(), x()+dx, y()+dy, W, H, color());  draw_box(drag==3?FL_DOWN_BOX:box(), x()+2*dx,  y(), W, H, color());  if (active_r())    fl_color(selection_color());  else    fl_color(inactive(selection_color()));  fastarrow.draw(x()+(W-fastarrow_width)/2,		 y()+2*dy+(H-fastarrow_height)/2, W, H);  mediumarrow.draw(x()+dx+(W-mediumarrow_width)/2,		   y()+dy+(H-mediumarrow_height)/2, W, H);  slowarrow.draw(x()+2*dx+(W-slowarrow_width)/2,		 y()+(H-slowarrow_width)/2, W, H);}int Fl_Adjuster::handle(int event) {  double v;  int delta;  int mx = Fl::event_x();  switch (event) {  case FL_PUSH:    ix = mx;    if (w()>=h())      drag = 3*(mx-x())/w() + 1;    else      drag = 3-3*(Fl::event_y()-y()-1)/h();    handle_push();    redraw();    return 1;  case FL_DRAG:    if (w() >= h()) {      delta = x()+(drag-1)*w()/3;	// left edge of button      if (mx < delta)	delta = mx-delta;      else if (mx > (delta+w()/3)) // right edge of button	delta = mx-delta-w()/3;      else	delta = 0;    } else {      if (mx < x())	delta = mx-x();      else if (mx > (x()+w()))	delta = mx-x()-w();      else	delta = 0;    }    switch (drag) {    case 3: v = increment(previous_value(), delta); break;    case 2: v = increment(previous_value(), delta*10); break;    default:v = increment(previous_value(), delta*100); break;    }    handle_drag(soft() ? softclamp(v) : clamp(v));    return 1;  case FL_RELEASE:    if (Fl::event_is_click()) { // detect click but no drag      if (Fl::event_state()&0xF0000) delta = -10;      else delta = 10;      switch (drag) {      case 3: v = increment(previous_value(), delta); break;      case 2: v = increment(previous_value(), delta*10); break;      default:v = increment(previous_value(), delta*100); break;      }      handle_drag(soft() ? softclamp(v) : clamp(v));    }    drag = 0;    redraw();    handle_release();    return 1;  }  return 0;}Fl_Adjuster::Fl_Adjuster(int x, int y, int w, int h, const char* l)  : Fl_Valuator(x, y, w, h, l) {  box(FL_UP_BOX);  step(1, 10000);  selection_color(FL_BLACK);  drag = 0;  soft_ = 1;}//// End of "$Id: Fl_Adjuster.cxx,v 1.1.1.1 2003/08/07 21:18:39 jasonk Exp $".//