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/*
Copyright (C) 2000 Paul Barton-Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
$Id$
*/
#include <stdio.h> /* for sprintf, sigh ... */
#include <string>
#include <ctype.h>
#include <gdk/gdkkeysyms.h>
#include <gtkmm2ext/hexentry.h>
using namespace std;
using namespace Gtkmm2ext;
bool
HexEntry::on_key_press_event (GdkEventKey *ev)
{
if ((ev->keyval >= GDK_a && ev->keyval <= GDK_f) ||
(ev->keyval >= GDK_A && ev->keyval <= GDK_A) ||
(ev->keyval >= GDK_0 && ev->keyval <= GDK_9) ||
ev->keyval == GDK_space ||
ev->keyval == GDK_Tab ||
ev->keyval == GDK_Return ||
ev->keyval == GDK_BackSpace ||
ev->keyval == GDK_Delete) {
return Gtk::Entry::on_key_press_event (ev);
} else {
gdk_beep ();
return FALSE;
}
}
void
HexEntry::set_hex (unsigned char *msg, unsigned int len)
{
/* create a textual representation of the MIDI message */
if (msg && len) {
char *rep;
rep = new char[(len * 3) + 1];
for (size_t i = 0; i < len; i++) {
sprintf (&rep[i*3], "%02x ", msg[i]);
}
rep[len * 3] = '\0';
set_text (rep);
delete [] rep;
} else {
set_text ("");
}
}
unsigned int
HexEntry::get_hex (unsigned char *hexbuf, size_t buflen)
{
int fetched_len;
char buf[3];
string text = get_text();
string::size_type length = text.length ();
string::size_type offset;
fetched_len = 0;
buf[2] = '\0';
offset = 0;
while (1) {
offset = text.find_first_of ("abcdef0123456789", offset);
if (offset == string::npos) {
break;
}
/* grab two characters, but no more */
buf[0] = text[offset];
if (offset < length - 1) {
buf[1] = text[offset+1];
offset += 2;
} else {
buf[1] = '\0';
offset += 1;
}
hexbuf[fetched_len++] = (char) strtol (buf, 0, 16);
}
return fetched_len;
}
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