int DerivedText_Editor::handle_key(){
// Call FLTK's rules to try to turn this into a printing character.
// This uses the right-hand ctrl key as a "compose prefix" and returns
// the changes that should be made to the text, as a number of
// bytes to delete and a string to insert:
int del = 0;
if (Fl::compose(del)) {
if (del) {
// del is a number of bytes
int dp = insert_position() - del;
if ( dp < 0 ) dp = 0;
buffer()->select(dp, insert_position());
}
kill_selection(this);
if (Fl::event_length()) {
if (insert_mode()) insert(Fl::event_text());
else overstrike(Fl::event_text());
}
#ifdef __APPLE__
if (Fl::compose_state) {
int pos = this->insert_position();
this->buffer()->select(pos - Fl::compose_state, pos);
}
#endif
show_insert_position();
set_changed();
if (when()&FL_WHEN_CHANGED) do_callback();
return 1;
}
int key = Fl::event_key(), state = Fl::event_state(), c = Fl::event_text()[0];
state &= FL_SHIFT|FL_CTRL|FL_ALT|FL_META; // only care about these states
C_to_Fl_Callback* f;
f = bound_key_function(key, state, global_key_bindings);
this->curr_callback_context = f;
if (!f) f = bound_key_function(key, state, key_bindings);
if (f) return C_to_Fl_Callback::intercept(key, this);
if (default_key_function_ && !state) return default_key_function_(c, this);
return 0;
}
static void
flushln(void)
{
register int lastmode;
register int i;
int hadmodes = 0;
lastmode = NORMAL;
for (i=0; i<maxcol; i++) {
obaccs(i);
if (obuf[i].c_mode != lastmode) {
hadmodes++;
setmod(obuf[i].c_mode);
lastmode = obuf[i].c_mode;
}
if (obuf[i].c_char == '\0') {
if (upln) {
put(cursor_right);
} else
outc(' ');
} else
outc(obuf[i].c_char);
while (i < maxcol-1 && obuf[i+1].c_mode & FILLER)
i++;
}
if (lastmode != NORMAL) {
setmod(0);
}
if (must_overstrike && hadmodes)
overstrike();
putchar('\n');
if (iflag && hadmodes)
iattr();
fflush(stdout);
if (upln)
upln--;
initbuf();
}
static void
flushln(void)
{
int lastmode;
int i;
int hadmodes = 0;
lastmode = NORMAL;
for (i=0; i<maxcol; i++) {
if (obuf[i].c_mode != lastmode) {
hadmodes++;
setnewmode(obuf[i].c_mode);
lastmode = obuf[i].c_mode;
}
if (obuf[i].c_char == '\0') {
if (upln)
PRINT(CURS_RIGHT);
else
outc(' ', 1);
} else
outc(obuf[i].c_char, obuf[i].c_width);
if (obuf[i].c_width > 1)
i += obuf[i].c_width - 1;
}
if (lastmode != NORMAL) {
setnewmode(0);
}
if (must_overstrike && hadmodes)
overstrike();
putwchar('\n');
if (iflag && hadmodes)
iattr();
(void)fflush(stdout);
if (upln)
upln--;
initbuf();
}
