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libcontrol: primitive text entry cut and paste with mouse

front
cinap_lenrek 2016-08-08 07:37:57 +02:00
parent 15fd826147
commit e9818df0ba
1 changed files with 36 additions and 13 deletions
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49
sys/src/libcontrol/entry.c
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@ -140,14 +140,48 @@ entrysetpoint(Entry *e, Point cp)
entryshow(e);
}
static void
entrycut(Entry *e)
{
_ctlputsnarf(e->text);
e->cursor = 0;
e->ntext = 0;
e->text[0] = L'\0';
}
static void
entrypaste(Entry *e)
{
Rune *s;
int n;
s = _ctlgetsnarf();
if(s == nil)
return;
n = runestrlen(s);
e->text = ctlrealloc(e->text, (e->ntext+n+1)*sizeof(Rune));
memmove(e->text+e->cursor+n, e->text+e->cursor,
(e->ntext+1-e->cursor)*sizeof(Rune));
memmove(e->text+e->cursor, s, n*sizeof(Rune));
e->cursor += n;
e->ntext += n;
}
static void
entrymouse(Control *c, Mouse *m)
{
Entry *e;
e = (Entry*)c;
if(m->buttons==1 && e->lastbut==0)
if(m->buttons==1 && e->lastbut==0){
entrysetpoint(e, m->xy);
} else if(m->buttons==3 && e->lastbut!=3){
entrycut(e);
entryshow(e);
} else if(m->buttons==5 && e->lastbut!=5){
entrypaste(e);
entryshow(e);
}
e->lastbut = m->buttons;
}
@ -261,8 +295,6 @@ entryctl(Control *c, CParse *cp)
static void
entrykey(Entry *e, Rune r)
{
Rune *s;
int n;
char *p;
switch(r){
@ -305,16 +337,7 @@ entrykey(Entry *e, Rune r)
e->ntext = 0;
break;
case 0x16: /* control V: paste (append snarf buffer) */
s = _ctlgetsnarf();
if(s != nil){
n = runestrlen(s);
e->text = ctlrealloc(e->text, (e->ntext+n+1)*sizeof(Rune));
memmove(e->text+e->cursor+n, e->text+e->cursor,
(e->ntext+1-e->cursor)*sizeof(Rune));
memmove(e->text+e->cursor, s, n*sizeof(Rune));
e->cursor += n;
e->ntext += n;
}
entrypaste(e);
break;
}
e->text[e->ntext] = L'\0';