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//
// "$Id$"
//
// Simple Fl_Tree widget example. - erco 06/05/2010
//
// 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:
//
// http://www.fltk.org/COPYING.php
//
// Please report all bugs and problems on the following page:
//
// http://www.fltk.org/str.php
//
#include <stdio.h>
#include <FL/Fl.H>
#include <FL/Fl_Double_Window.H>
#include <FL/Fl_Tree.H>
// Tree's callback
// Invoked whenever an item's state changes.
//
void TreeCallback(Fl_Widget *w, void *data) {
Fl_Tree *tree = (Fl_Tree*)w;
Fl_Tree_Item *item = (Fl_Tree_Item*)tree->callback_item();
if ( ! item ) return;
switch ( tree->callback_reason() ) {
case FL_TREE_REASON_SELECTED: {
char pathname[256];
tree->item_pathname(pathname, sizeof(pathname), item);
fprintf(stderr, "TreeCallback: Item selected='%s', Full pathname='%s'\n", item->label(), pathname);
break;
}
case FL_TREE_REASON_DESELECTED:
// fprintf(stderr, "TreeCallback: Item '%s' deselected\n", item->label());
break;
case FL_TREE_REASON_OPENED:
// fprintf(stderr, "TreeCallback: Item '%s' opened\n", item->label());
break;
case FL_TREE_REASON_CLOSED:
// fprintf(stderr, "TreeCallback: Item '%s' closed\n", item->label());
break;
#if FLTK_ABI_VERSION >= 10301
// To enable this callback, use tree->item_reselect_mode(FL_TREE_SELECTABLE_ALWAYS);
case FL_TREE_REASON_RESELECTED:
// fprintf(stderr, "TreeCallback: Item '%s' reselected\n", item->label());
break;
#endif
default:
break;
}
}
int main(int argc, char *argv[]) {
Fl::scheme("gtk+");
Fl_Double_Window *win = new Fl_Double_Window(250, 400, "Simple Tree");
win->begin();
{
// Create the tree
Fl_Tree *tree = new Fl_Tree(10, 10, win->w()-20, win->h()-20);
tree->showroot(0); // don't show root of tree
tree->callback(TreeCallback); // setup a callback for the tree
// Add some items
tree->add("Flintstones/Fred");
tree->add("Flintstones/Wilma");
tree->add("Flintstones/Pebbles");
tree->add("Simpsons/Homer");
tree->add("Simpsons/Marge");
tree->add("Simpsons/Bart");
tree->add("Simpsons/Lisa");
tree->add("Pathnames/\\/bin"); // front slashes
tree->add("Pathnames/\\/usr\\/sbin");
tree->add("Pathnames/C:\\\\Program Files"); // backslashes
tree->add("Pathnames/C:\\\\Documents and Settings");
// Start with some items closed
tree->close("Simpsons");
tree->close("Pathnames");
}
win->end();
win->resizable(win);
win->show(argc, argv);
return(Fl::run());
}
//
// End of "$Id$".
//
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