mirror of https://github.com/fltk/fltk
64 lines
1.8 KiB
C++
64 lines
1.8 KiB
C++
//
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// Very simple Fl_Flex demo program for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 2022 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 <FL/Fl.H>
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#include <FL/Fl_Double_Window.H>
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#include <FL/Fl_Flex.H>
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#include <FL/Fl_Box.H>
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#include <FL/Fl_Button.H>
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#include <FL/fl_ask.H>
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// the 'Exit' button callback closes the window and terminates the program
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void exit_cb(Fl_Widget *w, void *) {
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fl_message("The '%s' button closes the window\nand terminates the program.", w->label());
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w->window()->hide();
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}
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// common callback for all other buttons
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void button_cb(Fl_Widget *w, void *) {
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fl_message("The '%s' button does nothing.", w->label());
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}
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int main(int argc, char **argv) {
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Fl_Double_Window window(410, 40, "Simple Fl_Flex Demo");
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Fl_Flex flex(5, 5, window.w() - 10, window.h() - 10, Fl_Flex::HORIZONTAL);
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Fl_Button b1(0, 0, 0, 0, "File");
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Fl_Button b2(0, 0, 0, 0, "New");
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Fl_Button b3(0, 0, 0, 0, "Save");
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Fl_Box bx(0, 0, 0, 0); // empty space
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Fl_Button eb(0, 0, 0, 0, "Exit");
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// assign callbacks to buttons
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b1.callback(button_cb);
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b2.callback(button_cb);
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b3.callback(button_cb);
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eb.callback(exit_cb);
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// set gap between adjacent buttons and extra spacing (invisible box size)
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flex.gap(10);
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flex.fixed(bx, 30); // total 50: 2 * gap + 30
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// end() groups
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flex.end();
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window.end();
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// set resizable, minimal window size, show() window, and execute event loop
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window.resizable(flex);
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window.size_range(300, 30);
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window.show(argc, argv);
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return Fl::run();
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}
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