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