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// Copyright (C) 2003 Mooffie <mooffie@typo.co.il>
//
// 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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
#include <config.h>
#include "event.h"
#include "my_wctob.h"
#include "dbg.h"
static const char *ext_keyname(int keycode)
{
switch (keycode) {
case KEY_DOWN: return "Down";
case KEY_UP: return "Up";
case KEY_LEFT: return "Left";
case KEY_RIGHT: return "Right";
case KEY_HOME: return "Home";
case KEY_END: return "End";
case KEY_BACKSPACE: return "BkSp";
case KEY_DC: return "Del";
case KEY_IC: return "Insert";
case KEY_NPAGE: return "PgDn";
case KEY_PPAGE: return "PgUp";
default: return keyname(keycode);
}
}
u8string Event::to_string() const
{
u8string s;
if ((modifiers & VIRTUAL) || (keycode == 0 && !ch)) {
// No actual event
s = "";
} else if (is_literal()) {
s = u8string(unistring(&ch, &ch + 1));
} else {
//DBG(2, ("comp: "));
if (modifiers) {
if (modifiers & CTRL)
s += "C-";
if (modifiers & ALT)
s += "M-";
if (modifiers & SHIFT)
s += "Shift-";
}
if (ch) {
if ((modifiers & ALT) && ch == '\t') {
// Hmmm... this is a special case. Ctrl-I is actually TAB.
return u8string("C-M-i");
}
if ((modifiers & CTRL) && ch == '^') {
// Hmmm... this is a more friendly representation.
return u8string("C-Spc");
}
s += u8string(unistring(&ch, &ch + 1)).c_str();
} else {
if (keycode >= KEY_F(0) && keycode <= KEY_F(63)) {
u8string num;
num.cformat("F%d", keycode - KEY_F(0));
s += num;
} else {
s += ext_keyname(keycode);
}
}
}
return s;
}
void Event::print()
{
DBG(2, ("EVENT: "));
if (is_literal())
DBG(2, ("literal: '%lc'\n", ch));
else {
DBG(2, ("comp: "));
if (modifiers) {
if (modifiers & CTRL)
DBG(2, ("CTRL-"));
if (modifiers & ALT)
DBG(2, ("ALT-"));
if (modifiers & SHIFT)
DBG(2, ("SHIFT-"));
}
if (ch)
DBG(2, ("'%lc'\n", ch));
else
DBG(2, ("%s\n", keyname(keycode)));
}
}
#ifdef HAVE_WIDE_CURSES
static void low_level_get_wch(Event &evt, WINDOW *wnd)
{
wint_t c;
int ret;
do {
ret = wget_wch(wnd, &c);
if (ret == KEY_CODE_YES) {
evt.ch = 0;
evt.keycode = (int)c;
} else if (ret == OK) {
evt.keycode = 0;
evt.ch = (unichar)c;
}
} while (ret == ERR);
}
#else
static void low_level_get_wch(Event &evt, WINDOW *wnd)
{
int ret;
do {
ret = wgetch(wnd);
if (ret >= 256) {
evt.ch = 0;
evt.keycode = ret;
} else {
evt.keycode = 0;
evt.ch = terminal::force_iso88598 ? iso88598_to_unicode(ret) : BTOWC(ret);
}
} while (ret == ERR);
}
#endif
static void get_base_event(Event &evt, WINDOW *wnd)
{
evt.type = evtKbd;
evt.modifiers = 0;
low_level_get_wch(evt, wnd);
if (evt.keycode == 0 && evt.ch < 32) {
switch (evt.ch) {
case 9:
case 13:
case 27:
// leave alone TAB, ENTER, ESC
break;
case 0:
case 28:
case 29:
case 30:
case 31:
evt.ch += 'A' - 1;
evt.modifiers = CTRL;
break;
default:
evt.ch += 'a' - 1;
evt.modifiers = CTRL;
}
}
}
bool is_event_pending = false;
Event pending_event;
void get_next_event(Event &evt, WINDOW *wnd)
{
if (is_event_pending) {
evt = pending_event;
is_event_pending = false;
return;
}
get_base_event(evt, wnd);
if (evt.ch == 27) {
// emulate ALT
get_base_event(evt, wnd);
if (evt.ch != 27) // ...but make sure we can still generate ESCape
evt.modifiers |= ALT;
}
}
void set_next_event(const Event &evt)
{
is_event_pending = true;
pending_event = evt;
}
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