📄 overlay.cxx
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//// "$Id: overlay.cxx,v 1.1.1.1 2003/08/07 21:18:42 jasonk Exp $"//// Overlay window test program 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 <stdlib.h>#include <stdio.h>#include <FL/Fl.H>#include <FL/Fl_Window.H>#include <FL/Fl_Overlay_Window.H>#include <FL/Fl_Button.H>#include <FL/fl_draw.H>int width=10,height=10;class overlay : public Fl_Overlay_Window {public: overlay(int w,int h) : Fl_Overlay_Window(w,h) {} void draw_overlay();};void overlay::draw_overlay() { fl_color(FL_RED); fl_rect((w()-width)/2,(h()-height)/2,width,height);}overlay *ovl;void bcb1(Fl_Widget *,void *) {width+=20; ovl->redraw_overlay();}void bcb2(Fl_Widget *,void *) {width-=20; ovl->redraw_overlay();}void bcb3(Fl_Widget *,void *) {height+=20; ovl->redraw_overlay();}void bcb4(Fl_Widget *,void *) {height-=20; ovl->redraw_overlay();}int arg(int, char **argv, int& i) { Fl_Color n = (Fl_Color)atoi(argv[i]); if (n<=0) return 0; i++; uchar r,g,b; Fl::get_color(n,r,g,b); Fl::set_color(FL_RED,r,g,b); return i;}int main(int argc, char **argv) { int i=0; Fl::args(argc,argv,i,arg); ovl = new overlay(400,400); Fl_Button *b; b = new Fl_Button(50,50,100,100,"wider\n(a)"); b->callback(bcb1); b->shortcut('a'); b = new Fl_Button(250,50,100,100,"narrower\n(b)"); b->callback(bcb2); b->shortcut('b'); b = new Fl_Button(50,250,100,100,"taller\n(c)"); b->callback(bcb3); b->shortcut('c'); b = new Fl_Button(250,250,100,100,"shorter\n(d)"); b->callback(bcb4); b->shortcut('d'); ovl->resizable(ovl); ovl->end(); ovl->show(argc,argv); ovl->redraw_overlay(); return Fl::run();}//// End of "$Id: overlay.cxx,v 1.1.1.1 2003/08/07 21:18:42 jasonk Exp $".//
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