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------------------------------------------------------------------------
r10035 | greg.ercolano | 2013-12-16 05:26:44 -0500 (Mon, 16 Dec 2013) | 2 lines
Changed paths:
M /branches/branch-1.3/examples/Makefile
A /branches/branch-1.3/examples/tree-custom-sort.cxx
Added Fl_Tree sort example.
------------------------------------------------------------------------
Index: branches/branch-1.3/examples/tree-custom-sort.cxx
===================================================================
--- branches/branch-1.3/examples/tree-custom-sort.cxx (revision 0)
+++ branches/branch-1.3/examples/tree-custom-sort.cxx (revision 10035)
@@ -0,0 +1,82 @@
+//
+// "$Id$"
+//
+// Simple Fl_Tree custom (numeric) sort example. - erco 12/16/2013
+// Demonstrates custom sorting of Fl_Tree items.
+//
+// Copyright 2013 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 <stdlib.h> /* qsort(3), srand(3).. */
+#include <time.h> /* time(2) */
+#include <FL/Fl.H>
+#include <FL/Fl_Double_Window.H>
+#include <FL/Fl_Tree.H>
+#include <FL/Fl_Button.H>
+
+Fl_Tree *G_tree = 0;
+
+// Resort the tree
+void MySortCallback(Fl_Widget*, void *data) {
+ int dir = int(long(data)); // forward or reverse
+ Fl_Tree_Item *i = G_tree->root();
+ // Bubble sort
+ for ( int ax=0; ax<i->children(); ax++ ) {
+ for ( int bx=ax+1; bx<i->children(); bx++ ) {
+ long a; sscanf(i->child(ax)->label(), "%ld", &a);
+ long b; sscanf(i->child(bx)->label(), "%ld", &b);
+ switch ( dir ) {
+ case 1: if ( a > b ) { i->swap_children(ax, bx); } break; // fwd
+ case -1: if ( a < b ) { i->swap_children(ax, bx); } break; // rev
+ }
+ }
+ }
+ G_tree->redraw();
+}
+
+int main(int argc, char *argv[]) {
+ // Randomize the random number generator
+ time_t tval; time(&tval);
+ srand((unsigned)tval);
+
+ // Create window with tree
+ Fl::scheme("gtk+");
+ Fl_Double_Window *win = new Fl_Double_Window(250, 600, "Numeric Sort Tree");
+ win->begin();
+ {
+ G_tree = new Fl_Tree(10, 10, win->w()-20, win->h()-60);
+ G_tree->showroot(0);
+
+ // Add 200 random numbers to the tree
+ Fl_Tree_Item *item;
+ char word[50];
+ for ( int t=0; t<200; t++ ) {
+ sprintf(word, "%ld", long((float(rand()) / RAND_MAX) * 1000000));
+ item = G_tree->add(word);
+ }
+
+ // Add some sort buttons
+ Fl_Button *but;
+ but = new Fl_Button(10, win->h()-40,80,20,"Fwd"); but->callback(MySortCallback, (void*) 1);
+ but = new Fl_Button(20+80,win->h()-40,80,20,"Rev"); but->callback(MySortCallback, (void*)-1);
+ }
+ win->end();
+ win->resizable(win);
+ win->show(argc, argv);
+ return(Fl::run());
+}
+
+//
+// End of "$Id$".
+//
Property changes on: branches/branch-1.3/examples/tree-custom-sort.cxx
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Added: svn:keywords
## -0,0 +1 ##
+author date id revision
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Added: svn:eol-style
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+native
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Index: branches/branch-1.3/examples/Makefile
===================================================================
--- branches/branch-1.3/examples/Makefile (revision 10034)
+++ branches/branch-1.3/examples/Makefile (revision 10035)
@@ -25,6 +25,7 @@
tree-simple$(EXEEXT) \
tree-as-container$(EXEEXT) \
tree-custom-draw-items$(EXEEXT) \
+ tree-custom-sort$(EXEEXT) \
tree-of-tables$(EXEEXT) \
wizard-simple$(EXEEXT)
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