mirror of https://github.com/fltk/fltk
72 lines
1.9 KiB
C++
72 lines
1.9 KiB
C++
//
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// Overlay window test program for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-2010 by Bill Spitzak and others.
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//
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// This library is free software. Distribution and use rights are outlined in
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// the file "COPYING" which should have been included with this file. If this
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// file is missing or damaged, see the license at:
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//
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// https://www.fltk.org/COPYING.php
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//
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// Please see the following page on how to report bugs and issues:
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//
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// https://www.fltk.org/bugs.php
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//
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#include <stdlib.h>
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#include <stdio.h>
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#include <FL/Fl.H>
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#include <FL/Fl_Window.H>
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#include <FL/Fl_Overlay_Window.H>
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#include <FL/Fl_Button.H>
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#include <FL/fl_draw.H>
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int width=10,height=10;
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class overlay : public Fl_Overlay_Window {
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public:
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overlay(int w,int h) : Fl_Overlay_Window(w,h) {}
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void draw_overlay();
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};
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void overlay::draw_overlay() {
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fl_color(FL_RED); fl_rect((w()-width)/2,(h()-height)/2,width,height);
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}
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overlay *ovl;
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void bcb1(Fl_Widget *,void *) {width+=20; ovl->redraw_overlay();}
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void bcb2(Fl_Widget *,void *) {width-=20; ovl->redraw_overlay();}
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void bcb3(Fl_Widget *,void *) {height+=20; ovl->redraw_overlay();}
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void bcb4(Fl_Widget *,void *) {height-=20; ovl->redraw_overlay();}
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int arg(int, char **argv, int& i) {
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Fl_Color n = (Fl_Color)atoi(argv[i]);
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if (n<=0) return 0;
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i++;
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uchar r,g,b;
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Fl::get_color(n,r,g,b);
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Fl::set_color(FL_RED,r,g,b);
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return i;
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}
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int main(int argc, char **argv) {
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int i=0; Fl::args(argc,argv,i,arg);
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ovl = new overlay(400,400);
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Fl_Button *b;
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b = new Fl_Button(50,50,100,100,"wider\n(a)");
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b->callback(bcb1); b->shortcut('a');
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b = new Fl_Button(250,50,100,100,"narrower\n(b)");
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b->callback(bcb2); b->shortcut('b');
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b = new Fl_Button(50,250,100,100,"taller\n(c)");
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b->callback(bcb3); b->shortcut('c');
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b = new Fl_Button(250,250,100,100,"shorter\n(d)");
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b->callback(bcb4); b->shortcut('d');
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ovl->resizable(ovl);
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ovl->end();
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ovl->show(argc,argv);
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ovl->redraw_overlay();
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return Fl::run();
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}
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