mirror of https://github.com/fltk/fltk
95 lines
2.3 KiB
C++
95 lines
2.3 KiB
C++
//
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// "$Id$"
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//
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// A simple demo of drag+drop with FLTK.
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// Originally from erco's cheat sheet, permission by author.
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// Inspired by Michael Sephton's original example posted on fltk.general.
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//
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// When you run the program, just drag the red square over
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// to the green square to show a 'drag and drop' sequence.
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//
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// Copyright 1998-2010 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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#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_Box.H>
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// SIMPLE SENDER CLASS
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class Sender : public Fl_Box {
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public:
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// Ctor
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Sender(int x,int y,int w,int h) : Fl_Box(x,y,w,h) {
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box(FL_FLAT_BOX);
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color(9);
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label("Drag\nfrom\nhere..");
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}
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// Sender event handler
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int handle(int event) {
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int ret = Fl_Box::handle(event);
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switch ( event ) {
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case FL_PUSH: { // do 'copy/dnd' when someone clicks on box
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const char *msg = "It works!";
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Fl::copy(msg,strlen(msg),0);
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Fl::dnd();
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ret = 1;
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break;
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}
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}
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return(ret);
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}
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};
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// SIMPLE RECEIVER CLASS
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class Receiver : public Fl_Box {
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public:
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// Ctor
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Receiver(int x,int y,int w,int h) : Fl_Box(x,y,w,h) {
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box(FL_FLAT_BOX); color(10); label("..to\nhere");
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}
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// Receiver event handler
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int handle(int event) {
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int ret = Fl_Box::handle(event);
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switch ( event ) {
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case FL_DND_ENTER: // return(1) for these events to 'accept' dnd
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case FL_DND_DRAG:
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case FL_DND_RELEASE:
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ret = 1;
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break;
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case FL_PASTE: // handle actual drop (paste) operation
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label(Fl::event_text());
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fprintf(stderr, "Pasted '%s'\n", Fl::event_text());
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ret = 1;
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break;
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}
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return(ret);
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}
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};
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int main(int argc, char **argv) {
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// Create sender window and widget
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Fl_Window win_a(0,0,200,100,"Sender");
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Sender a(0,0,100,100);
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win_a.end();
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win_a.show();
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// Create receiver window and widget
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Fl_Window win_b(400,0,200,100,"Receiver");
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Receiver b(100,0,100,100);
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win_b.end();
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win_b.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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