static void _owl_keymap_format_bindings(const owl_keymap *km, owl_fmtext *fm)
{
int i, nbindings;
const owl_keybinding *kb;
nbindings = owl_list_get_size(&km->bindings);
for (i=0; i<nbindings; i++) {
char *kbstr;
const owl_cmd *cmd;
const char *tmpdesc, *desc = "";
kb = owl_list_get_element(&km->bindings, i);
kbstr = owl_keybinding_tostring(kb);
owl_fmtext_append_normal(fm, OWL_TABSTR);
owl_fmtext_append_normal(fm, kbstr);
owl_fmtext_append_spaces(fm, 11-strlen(kbstr));
g_free(kbstr);
owl_fmtext_append_normal(fm, " - ");
if (kb->desc && *kb->desc) {
desc = kb->desc;
} else if ((cmd=owl_function_get_cmd(kb->command))
&& (tmpdesc = owl_cmd_get_summary(cmd))) {
desc = tmpdesc;
}
owl_fmtext_append_normal(fm, desc);
if (kb->command && *(kb->command)) {
owl_fmtext_append_normal(fm, " [");
owl_fmtext_append_normal(fm, kb->command);
owl_fmtext_append_normal(fm, "]");
}
owl_fmtext_append_normal(fm, "\n");
}
}
/* Truncate the message so that each line begins at column 'acol' and
* ends at 'bcol' or sooner. The first column is number 0. The new
* message is placed in 'out'. The message is expected to end in a
* new line for now.
*
* NOTE: This needs to be modified to deal with backing up if we find
* a SPACING COMBINING MARK at the end of a line. If that happens, we
* should back up to the last non-mark character and stop there.
*
* NOTE: If a line ends at bcol, we omit the newline. This is so printing
* to ncurses works.
*/
void owl_fmtext_truncate_cols(const owl_fmtext *in, int acol, int bcol, owl_fmtext *out)
{
const char *ptr_s, *ptr_e, *ptr_c, *last;
int col, st, padding, chwidth;
/* copy the default attributes */
out->default_attrs = in->default_attrs;
out->default_fgcolor = in->default_fgcolor;
out->default_bgcolor = in->default_bgcolor;
last=in->textbuff+in->textlen-1;
ptr_s=in->textbuff;
while (ptr_s <= last) {
ptr_e=strchr(ptr_s, '\n');
if (!ptr_e) {
/* but this shouldn't happen if we end in a \n */
break;
}
if (ptr_e == ptr_s) {
owl_fmtext_append_normal(out, "\n");
++ptr_s;
continue;
}
col = 0;
st = 0;
padding = 0;
chwidth = 0;
ptr_c = ptr_s;
while(ptr_c < ptr_e) {
gunichar c = g_utf8_get_char(ptr_c);
if (!owl_fmtext_is_format_char(c)) {
chwidth = mk_wcwidth(c);
if (col + chwidth > bcol) break;
if (col >= acol) {
if (st == 0) {
ptr_s = ptr_c;
padding = col - acol;
++st;
}
}
col += chwidth;
chwidth = 0;
}
ptr_c = g_utf8_next_char(ptr_c);
}
if (st) {
/* lead padding */
owl_fmtext_append_spaces(out, padding);
if (ptr_c == ptr_e) {
/* We made it to the newline. */
_owl_fmtext_append_fmtext(out, in, ptr_s - in->textbuff, ptr_c - in->textbuff);
}
else if (chwidth > 1) {
/* Last char is wide, truncate. */
_owl_fmtext_append_fmtext(out, in, ptr_s - in->textbuff, ptr_c - in->textbuff - 1);
owl_fmtext_append_normal(out, "\n");
}
else {
/* Last char fits perfectly, We skip to the next char and back
* up a byte to make sure we get it all.
*/
ptr_c = g_utf8_next_char(ptr_c);
_owl_fmtext_append_fmtext(out, in, ptr_s - in->textbuff, ptr_c - in->textbuff - 1);
}
}
else {
owl_fmtext_append_normal(out, "\n");
}
ptr_s = g_utf8_next_char(ptr_e);
}
}