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FLTK - Fast Light Tool Kit - https://github.com/fltk/fltk - cross platform GUI development
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78 lines
2.7 KiB
78 lines
2.7 KiB
#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_Button.H> |
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#include <FL/Fl_Progress.H> |
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// |
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// "$Id$" |
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// |
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// Demonstrate using the Fl_Progress widget in an application - erco 05/02/2005 |
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// |
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// Copyright 2005,2012 Greg Ercolano. |
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// Copyright 1998-2012 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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// http://www.fltk.org/COPYING.php |
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// |
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// Please report all bugs and problems on the following page: |
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// |
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// http://www.fltk.org/str.php |
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// |
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#ifdef WIN32 |
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// WINDOWS |
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#include <windows.h> |
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#define usleep(v) Sleep(v/1000) |
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#else /*WIN32*/ |
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// UNIX |
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#include <unistd.h> // usleep |
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#endif /*WIN32*/ |
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// Button callback |
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void butt_cb(Fl_Widget *butt, void *data) { |
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// Deactivate the button |
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butt->deactivate(); // prevent button from being pressed again |
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Fl::check(); // give fltk some cpu to gray out button |
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// Make the progress bar |
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Fl_Window *w = (Fl_Window*)data; // access parent window |
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w->begin(); // add progress bar to it.. |
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Fl_Progress *progress = new Fl_Progress(10,50,200,30); |
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progress->minimum(0); // set progress range to be 0.0 ~ 1.0 |
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progress->maximum(1); |
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progress->color(0x88888800); // background color |
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progress->selection_color(0x4444ff00); // progress bar color |
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progress->labelcolor(FL_WHITE); // percent text color |
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w->end(); // end adding to window |
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// Computation loop.. |
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for ( int t=1; t<=500; t++ ) { |
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progress->value(t/500.0); // update progress bar with 0.0 ~ 1.0 value |
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char percent[10]; |
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sprintf(percent, "%d%%", int((t/500.0)*100.0)); |
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progress->label(percent); // update progress bar's label |
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Fl::check(); // give fltk some cpu to update the screen |
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usleep(1000); // 'your stuff' that's compute intensive |
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} |
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// Cleanup |
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w->remove(progress); // remove progress bar from window |
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delete(progress); // deallocate it |
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butt->activate(); // reactivate button |
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w->redraw(); // tell window to redraw now that progress removed |
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} |
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// Main |
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int main() { |
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Fl_Window win(220,90); |
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Fl_Button butt(10,10,100,25,"Press"); |
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butt.callback(butt_cb, &win); |
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win.resizable(win); |
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win.show(); |
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return(Fl::run()); |
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} |
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// |
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// End of "$Id$". |
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//
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