1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
//
// "$Id: navigation.cxx 5519 2006-10-11 03:12:15Z mike $"
//
// Navigation test program for the Fast Light Tool Kit (FLTK).
//
// Silly test of navigation keys. This is not a recommended method of
// laying out your panels!
//
// Copyright 1998-2005 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 on the following page:
//
// http://www.fltk.org/str.php
//
#include <stdio.h>
#include <stdlib.h>
#include <FL/Fl.H>
#include <FL/Fl_Window.H>
#include <FL/Fl_Input.H>
#define WIDTH 600
#define HEIGHT 300
#define GRID 25
int main(int argc, char **argv) {
if (argc > 1) srand(atoi(argv[1]));
Fl_Window window(WIDTH,HEIGHT,argv[0]);
window.end(); // don't auto-add children
for (int i = 0; i<10000; i++) {
// make up a random size of widget:
int x = rand()%(WIDTH/GRID+1) * GRID;
int y = rand()%(HEIGHT/GRID+1) * GRID;
int w = rand()%(WIDTH/GRID+1) * GRID;
if (w < x) {w = x-w; x-=w;} else {w = w-x;}
int h = rand()%(HEIGHT/GRID+1) * GRID;
if (h < y) {h = y-h; y-=h;} else {h = h-y;}
if (w < GRID || h < GRID || w < h) continue;
// find where to insert it and see if it intersects something:
Fl_Widget *j = 0;
int n; for (n=0; n < window.children(); n++) {
Fl_Widget *o = window.child(n);
if (x<o->x()+o->w() && x+w>o->x() &&
y<o->y()+o->h() && y+h>o->y()) break;
if (!j && (y < o->y() || y == o->y() && x < o->x())) j = o;
}
// skip if intersection:
if (n < window.children()) continue;
window.insert(*(new Fl_Input(x,y,w,h)),j);
}
window.show(argc, argv);
return Fl::run();
}
//
// End of "$Id: navigation.cxx 5519 2006-10-11 03:12:15Z mike $".
//
|
