test/navigation.cxx

   1 //
   2 // "$Id: navigation.cxx 8090 2010-12-21 02:37:41Z greg.ercolano $"
   3 //
   4 // Navigation test program for the Fast Light Tool Kit (FLTK).
   5 //
   6 // Silly test of navigation keys. This is not a recommended method of
   7 // laying out your panels!
   8 //
   9 // Copyright 1998-2010 by Bill Spitzak and others.
  10 //
  11 // This library is free software; you can redistribute it and/or
  12 // modify it under the terms of the GNU Library General Public
  13 // License as published by the Free Software Foundation; either
  14 // version 2 of the License, or (at your option) any later version.
  15 //
  16 // This library is distributed in the hope that it will be useful,
  17 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19 // Library General Public License for more details.
  20 //
  21 // You should have received a copy of the GNU Library General Public
  22 // License along with this library; if not, write to the Free Software
  23 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  24 // USA.
  25 //
  26 // Please report all bugs and problems on the following page:
  27 //
  28 //     http://www.fltk.org/str.php
  29 //
  30
  31 #include <stdio.h>
  32 #include <stdlib.h>
  33 #include <FL/Fl.H>
  34 #include <FL/Fl_Window.H>
  35 #include <FL/Fl_Input.H>
  36 #include <FL/Fl_Light_Button.H>
  37
  38 #define WIDTH 600
  39 #define HEIGHT 300
  40 #define GRID 25
  41
  42 void ToggleArrowFocus_CB(Fl_Widget *w, void*) {
  43   Fl_Light_Button *b = (Fl_Light_Button*)w;
  44   Fl::option(Fl::OPTION_ARROW_FOCUS, b->value() ? true : false);
  45 }
  46 int main(int argc, char **argv) {
  47   if (argc > 1) srand(atoi(argv[1]));
  48   Fl_Window window(WIDTH,HEIGHT+40,argv[0]);
  49     // Include a toggle button to control arrow focus
  50     Fl_Light_Button arrowfocus_butt(10,HEIGHT+10,130,20," Arrow Focus");
  51     arrowfocus_butt.callback(ToggleArrowFocus_CB);
  52     arrowfocus_butt.value(Fl::option(Fl::OPTION_ARROW_FOCUS) ? 1 : 0);  // use default
  53     arrowfocus_butt.tooltip("Control horizontal arrow key focus navigation behavior.\n"
  54                             "e.g. Fl::OPTION_ARROW_FOCUS");
  55   window.end(); // don't auto-add children
  56   for (int i = 0; i<10000; i++) {
  57     // make up a random size of widget:
  58     int x = rand()%(WIDTH/GRID+1) * GRID;
  59     int y = rand()%(HEIGHT/GRID+1) * GRID;
  60     int w = rand()%(WIDTH/GRID+1) * GRID;
  61     if (w < x) {w = x-w; x-=w;} else {w = w-x;}
  62     int h = rand()%(HEIGHT/GRID+1) * GRID;
  63     if (h < y) {h = y-h; y-=h;} else {h = h-y;}
  64     if (w < GRID || h < GRID || w < h) continue;
  65     // find where to insert it and see if it intersects something:
  66     Fl_Widget *j = 0;
  67     int n; for (n=0; n < window.children(); n++) {
  68       Fl_Widget *o = window.child(n);
  69       if (x<o->x()+o->w() && x+w>o->x() &&
  70           y<o->y()+o->h() && y+h>o->y()) break;
  71       if ( !j && ( y<o->y() || (y==o->y() && x<o->x()) ) ) j = o;
  72     }
  73     // skip if intersection:
  74     if (n < window.children()) continue;
  75     window.insert(*(new Fl_Input(x,y,w,h)),j);
  76   }
  77   window.show(argc, argv);
  78   return Fl::run();
  79 }
  80
  81 //
  82 // End of "$Id: navigation.cxx 8090 2010-12-21 02:37:41Z greg.ercolano $".
  83 //