mirror of https://github.com/fltk/fltk
62 lines
1.8 KiB
C++
62 lines
1.8 KiB
C++
//
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// Window icon test program for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-2021 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_Choice.H>
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#include <FL/Fl_RGB_Image.H>
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static Fl_Double_Window *win;
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void choice_cb(Fl_Widget *, void *v) {
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Fl_Color c = (Fl_Color)fl_uint(v);
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if ( c != 0 ) {
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// choice was "Red", "Green"..
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static uchar buffer[32*32*3]; // static: issue #296
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Fl_RGB_Image rgbicon(buffer, 32, 32, 3);
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rgbicon.color_average(c, 0.0);
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win->icon(&rgbicon); // once assigned, 'rgbicon' can go out of scope
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} else {
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// choice was "None"..
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win->icon((Fl_RGB_Image*)0); // reset window icon
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}
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}
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Fl_Menu_Item choices[] = {
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{"None", 0, choice_cb, fl_voidptr(0)},
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{"Red", 0, choice_cb, fl_voidptr(FL_RED)},
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{"Green", 0, choice_cb, fl_voidptr(FL_GREEN)},
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{"Blue", 0, choice_cb, fl_voidptr(FL_BLUE)},
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{0}
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};
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int main(int argc, char **argv) {
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Fl_Double_Window window(400,300, "FLTK Window Icon Test");
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win = &window;
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Fl_Choice choice(120,100,200,25,"Window icon:");
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choice.menu(choices);
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choice.callback(choice_cb);
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choice.when(FL_WHEN_RELEASE|FL_WHEN_NOT_CHANGED);
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choice.tooltip("Sets the application icon for window manager. "
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"Affects e.g. titlebar, toolbar, Dock, Alt-Tab..");
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window.end();
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window.show(argc,argv);
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choice.do_callback(); // make default take effect
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return Fl::run();
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}
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