fltk/examples/howto-text-over-image-butto...

77 lines
5.0 KiB
C++

//
// Simple example of a button with text over an image
// Originally from erco's cheat sheet 10/25/2010, permission by author.
//
// This shows how to include an 'inline' image (.xpm)
// and have it appear on an Fl_Button. Demonstrates the use of the
// FL_ALIGN_IMAGE_BACKDROP align() flag (new in FLTK 1.3.0).
//
// Note that the XPM can just as easily be in an #include file,
// but to keep the example self contained, the image (a gray scale
// gradient) is included here.
//
// Copyright 2010 Greg Ercolano.
// Copyright 1998-2010 by Bill Spitzak and others.
//
// This library is free software. Distribution and use rights are outlined in
// the file "COPYING" which should have been included with this file. If this
// file is missing or damaged, see the license at:
//
// https://www.fltk.org/COPYING.php
//
// Please see the following page on how to report bugs and issues:
//
// https://www.fltk.org/bugs.php
//
#include <FL/Fl.H>
#include <FL/Fl_Window.H>
#include <FL/Fl_Button.H>
#include <FL/Fl_Pixmap.H>
/* XPM */
static const char * gradient_xpm[] = {
"135 20 26 1",
"a c #e0e0e0", "b c #dcdcdc", "c c #d8d8d8", "d c #d4d4d4", "e c #d2d2d2",
"f c #d0d0d0", "g c #cccccc", "h c #c8c8c8", "i c #c4c4c4", "j c #c2c2c2",
"k c #c0c0c0", "l c #bcbcbc", "m c #b8b8b8", "n c #b4b4b4", "o c #b2b2b2",
"p c #b0b0b0", "q c #acacac", "r c #a8a8a8", "s c #a4a4a4", "t c #a2a2a2",
"u c #a0a0a0", "v c #9c9c9c", "w c #989898", "x c #949494", "y c #929292",
"z c #909090",
"aaaaaaaaabbbbbbbbcccccccddddddeeeeeefffffffgggggggghhhhhhhiiiiiiijjjjjjjkkkkkkkklllllllmmmmmmmnnnnnnnnnoooooooppppppppqqqqqqrrrrrrrssss",
"aaaaaabbbbbbbbcccccccddddddeeeeeefffffffgggggggghhhhhhhiiiiiiijjjjjjjkkkkkkkklllllllmmmmmmmnnnnnnnnnoooooooppppppppqqqqqqrrrrrrrsssssst",
"aaabbbbbbbbcccccccddddddeeeeeefffffffgggggggghhhhhhhiiiiiiijjjjjjjkkkkkkkklllllllmmmmmmmnnnnnnnnnoooooooppppppppqqqqqqrrrrrrrsssssssstt",
"bbbbbbbbcccccccddddddeeeeeefffffffgggggggghhhhhhhiiiiiiijjjjjjjkkkkkkkklllllllmmmmmmmnnnnnnnnnoooooooppppppppqqqqqqrrrrrrrssssssssstttt",
"bbbbbcccccccddddddeeeeeefffffffgggggggghhhhhhhiiiiiiijjjjjjjkkkkkkkklllllllmmmmmmmnnnnnnnnnoooooooppppppppqqqqqqrrrrrrrsssssssssttttttu",
"bbcccccccddddddeeeeeefffffffgggggggghhhhhhhiiiiiiijjjjjjjkkkkkkkklllllllmmmmmmmnnnnnnnnnoooooooppppppppqqqqqqrrrrrrrsssssssssttttttuuuu",
"ccccccddddddeeeeeefffffffgggggggghhhhhhhiiiiiiijjjjjjjkkkkkkkklllllllmmmmmmmnnnnnnnnnoooooooppppppppqqqqqqrrrrrrrsssssssssttttttuuuuuuu",
"cccddddddeeeeeefffffffgggggggghhhhhhhiiiiiiijjjjjjjkkkkkkkklllllllmmmmmmmnnnnnnnnnoooooooppppppppqqqqqqrrrrrrrsssssssssttttttuuuuuuuuvv",
"ddddddeeeeeefffffffgggggggghhhhhhhiiiiiiijjjjjjjkkkkkkkklllllllmmmmmmmnnnnnnnnnoooooooppppppppqqqqqqrrrrrrrsssssssssttttttuuuuuuuuvvvvv",
"dddeeeeeefffffffgggggggghhhhhhhiiiiiiijjjjjjjkkkkkkkklllllllmmmmmmmnnnnnnnnnoooooooppppppppqqqqqqrrrrrrrsssssssssttttttuuuuuuuuvvvvvvvw",
"eeeeeefffffffgggggggghhhhhhhiiiiiiijjjjjjjkkkkkkkklllllllmmmmmmmnnnnnnnnnoooooooppppppppqqqqqqrrrrrrrsssssssssttttttuuuuuuuuvvvvvvvwwww",
"eeefffffffgggggggghhhhhhhiiiiiiijjjjjjjkkkkkkkklllllllmmmmmmmnnnnnnnnnoooooooppppppppqqqqqqrrrrrrrsssssssssttttttuuuuuuuuvvvvvvvwwwwwww",
"fffffffgggggggghhhhhhhiiiiiiijjjjjjjkkkkkkkklllllllmmmmmmmnnnnnnnnnoooooooppppppppqqqqqqrrrrrrrsssssssssttttttuuuuuuuuvvvvvvvwwwwwwwwxx",
"ffffgggggggghhhhhhhiiiiiiijjjjjjjkkkkkkkklllllllmmmmmmmnnnnnnnnnoooooooppppppppqqqqqqrrrrrrrsssssssssttttttuuuuuuuuvvvvvvvwwwwwwwwxxxxx",
"fgggggggghhhhhhhiiiiiiijjjjjjjkkkkkkkklllllllmmmmmmmnnnnnnnnnoooooooppppppppqqqqqqrrrrrrrsssssssssttttttuuuuuuuuvvvvvvvwwwwwwwwxxxxxxyy",
"gggggghhhhhhhiiiiiiijjjjjjjkkkkkkkklllllllmmmmmmmnnnnnnnnnoooooooppppppppqqqqqqrrrrrrrsssssssssttttttuuuuuuuuvvvvvvvwwwwwwwwxxxxxxyyyyy",
"ggghhhhhhhiiiiiiijjjjjjjkkkkkkkklllllllmmmmmmmnnnnnnnnnoooooooppppppppqqqqqqrrrrrrrsssssssssttttttuuuuuuuuvvvvvvvwwwwwwwwxxxxxxyyyyyyyy",
"hhhhhhhiiiiiiijjjjjjjkkkkkkkklllllllmmmmmmmnnnnnnnnnoooooooppppppppqqqqqqrrrrrrrsssssssssttttttuuuuuuuuvvvvvvvwwwwwwwwxxxxxxyyyyyyyyzzz",
"hhhhiiiiiiijjjjjjjkkkkkkkklllllllmmmmmmmnnnnnnnnnoooooooppppppppqqqqqqrrrrrrrsssssssssttttttuuuuuuuuvvvvvvvwwwwwwwwxxxxxxyyyyyyyyzzzzzz",
"hiiiiiiijjjjjjjkkkkkkkklllllllmmmmmmmnnnnnnnnnoooooooppppppppqqqqqqrrrrrrrsssssssssttttttuuuuuuuuvvvvvvvwwwwwwwwxxxxxxyyyyyyyyzzzzzzzzz"};
int main(int argc, char **argv) {
Fl_Pixmap gradient(gradient_xpm);
Fl_Window *win = new Fl_Window(160, 75, "test"); // create window
Fl_Button *but1 = new Fl_Button(10,10,140,25,"Button 1"); // create regular button
but1->image(&gradient); // assign it an image
but1->align(FL_ALIGN_IMAGE_BACKDROP|but1->align()); // use image as a 'backdrop'
Fl_Button *but2 = new Fl_Button(10,40,140,25,"Button 2"); // create second instance of button
but2->image(&gradient); // assign it same image
but2->align(FL_ALIGN_IMAGE_BACKDROP|but2->align()); // use image as a 'backdrop'
win->end();
win->show(argc,argv);
return(Fl::run());
}