fltk 1.3.0rc3
About: FLTK (Fast Light Tool Kit) is a cross-platform C++ GUI toolkit for UNIX/Linux (X11), Microsoft Windows, and MacOS X. Release candidate.
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Fl_Value_Slider.cxx

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00001 //
00002 // "$Id: Fl_Value_Slider.cxx 7903 2010-11-28 21:06:39Z matt $"
00003 //
00004 // Value slider widget for the Fast Light Tool Kit (FLTK).
00005 //
00006 // Copyright 1998-2010 by Bill Spitzak and others.
00007 //
00008 // This library is free software; you can redistribute it and/or
00009 // modify it under the terms of the GNU Library General Public
00010 // License as published by the Free Software Foundation; either
00011 // version 2 of the License, or (at your option) any later version.
00012 //
00013 // This library is distributed in the hope that it will be useful,
00014 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00015 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00016 // Library General Public License for more details.
00017 //
00018 // You should have received a copy of the GNU Library General Public
00019 // License along with this library; if not, write to the Free Software
00020 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
00021 // USA.
00022 //
00023 // Please report all bugs and problems on the following page:
00024 //
00025 //     http://www.fltk.org/str.php
00026 //
00027 
00028 #include <FL/Fl.H>
00029 #include <FL/Fl_Value_Slider.H>
00030 #include <FL/fl_draw.H>
00031 #include <math.h>
00032 
00037 Fl_Value_Slider::Fl_Value_Slider(int X, int Y, int W, int H, const char*l)
00038 : Fl_Slider(X,Y,W,H,l) {
00039   step(1,100);
00040   textfont_ = FL_HELVETICA;
00041   textsize_ = 10;
00042   textcolor_ = FL_FOREGROUND_COLOR;
00043 }
00044 
00045 void Fl_Value_Slider::draw() {
00046   int sxx = x(), syy = y(), sww = w(), shh = h();
00047   int bxx = x(), byy = y(), bww = w(), bhh = h();
00048   if (horizontal()) {
00049     bww = 35; sxx += 35; sww -= 35;
00050   } else {
00051     syy += 25; bhh = 25; shh -= 25;
00052   }
00053   if (damage()&FL_DAMAGE_ALL) draw_box(box(),sxx,syy,sww,shh,color());
00054   Fl_Slider::draw(sxx+Fl::box_dx(box()),
00055                   syy+Fl::box_dy(box()),
00056                   sww-Fl::box_dw(box()),
00057                   shh-Fl::box_dh(box()));
00058   draw_box(box(),bxx,byy,bww,bhh,color());
00059   char buf[128];
00060   format(buf);
00061   fl_font(textfont(), textsize());
00062   fl_color(active_r() ? textcolor() : fl_inactive(textcolor()));
00063   fl_draw(buf, bxx, byy, bww, bhh, FL_ALIGN_CLIP);
00064 }
00065 
00066 int Fl_Value_Slider::handle(int event) {
00067   if (event == FL_PUSH && Fl::visible_focus()) {
00068     Fl::focus(this);
00069     redraw();
00070   }
00071   int sxx = x(), syy = y(), sww = w(), shh = h();
00072   if (horizontal()) {
00073     sxx += 35; sww -= 35;
00074   } else {
00075     syy += 25; shh -= 25;
00076   }
00077   return Fl_Slider::handle(event,
00078                            sxx+Fl::box_dx(box()),
00079                            syy+Fl::box_dy(box()),
00080                            sww-Fl::box_dw(box()),
00081                            shh-Fl::box_dh(box()));
00082 }
00083 
00084 //
00085 // End of "$Id: Fl_Value_Slider.cxx 7903 2010-11-28 21:06:39Z matt $".
00086 //