/* append text to the end of 'f' with attribute 'attr' and color
* 'color'
*/
void owl_fmtext_append_attr(owl_fmtext *f, const char *text, char attr, short fgcolor, short bgcolor)
{
char attrbuff[6];
int newlen, a = 0, fg = 0, bg = 0;
if (attr != OWL_FMTEXT_ATTR_NONE) a=1;
if (fgcolor != OWL_COLOR_DEFAULT) fg=1;
if (bgcolor != OWL_COLOR_DEFAULT) bg=1;
/* Plane-16 characters in UTF-8 are 4 bytes long. */
newlen = strlen(f->textbuff) + strlen(text) + (8 * (a + fg + bg));
_owl_fmtext_realloc(f, newlen);
/* Set attributes */
if (a)
strncat(f->textbuff, attrbuff,
g_unichar_to_utf8(OWL_FMTEXT_UC_ATTR | attr, attrbuff));
if (fg)
strncat(f->textbuff, attrbuff,
g_unichar_to_utf8(OWL_FMTEXT_UC_FGCOLOR | fgcolor, attrbuff));
if (bg)
strncat(f->textbuff, attrbuff,
g_unichar_to_utf8(OWL_FMTEXT_UC_BGCOLOR | bgcolor, attrbuff));
strcat(f->textbuff, text);
/* Reset attributes */
if (bg) strcat(f->textbuff, OWL_FMTEXT_UTF8_BGDEFAULT);
if (fg) strcat(f->textbuff, OWL_FMTEXT_UTF8_FGDEFAULT);
if (a) strcat(f->textbuff, OWL_FMTEXT_UTF8_ATTR_NONE);
f->textlen=newlen;
}
/* Internal function. Append text from 'in' between index 'start' and
* 'stop', inclusive, to the end of 'f'. This function works with
* bytes.
*/
void _owl_fmtext_append_fmtext(owl_fmtext *f, owl_fmtext *in, int start, int stop) /*noproto*/
{
char attrbuff[6];
int newlen, a = 0, fg = 0, bg = 0;
char attr = 0;
short fgcolor = OWL_COLOR_DEFAULT;
short bgcolor = OWL_COLOR_DEFAULT;
_owl_fmtext_scan_attributes(in, start, &attr, &fgcolor, &bgcolor);
if (attr != OWL_FMTEXT_ATTR_NONE) a=1;
if (fgcolor != OWL_COLOR_DEFAULT) fg=1;
if (bgcolor != OWL_COLOR_DEFAULT) bg=1;
/* We will reset to defaults after appending the text. We may need
to set initial attributes. */
newlen=strlen(f->textbuff)+(stop-start+1) + (4 * (a + fg + bg)) + 12;
_owl_fmtext_realloc(f, newlen);
if (a) {
memset(attrbuff,0,6);
g_unichar_to_utf8(OWL_FMTEXT_UC_ATTR | attr, attrbuff);
strcat(f->textbuff, attrbuff);
}
if (fg) {
memset(attrbuff,0,6);
g_unichar_to_utf8(OWL_FMTEXT_UC_FGCOLOR | fgcolor, attrbuff);
strcat(f->textbuff, attrbuff);
}
if (bg) {
memset(attrbuff,0,6);
g_unichar_to_utf8(OWL_FMTEXT_UC_BGCOLOR | bgcolor, attrbuff);
strcat(f->textbuff, attrbuff);
}
strncat(f->textbuff, in->textbuff+start, stop-start+1);
/* Reset attributes */
strcat(f->textbuff, OWL_FMTEXT_UTF8_BGDEFAULT);
strcat(f->textbuff, OWL_FMTEXT_UTF8_FGDEFAULT);
strcat(f->textbuff, OWL_FMTEXT_UTF8_ATTR_NONE);
f->textbuff[newlen]='\0';
f->textlen=newlen;
}
