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selection is removed or scrolled properly. (thx Rafa Garcia Gallego)

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This commit is contained in:
Aurélien Aptel 2011-09-16 18:48:16 +02:00
parent b032814e25
commit 4bd087766f
1 changed files with 30 additions and 0 deletions
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30
st.c
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@ -237,6 +237,7 @@ static void selinit(void);
static inline int selected(int, int);
static void selcopy(void);
static void selpaste();
static void selscroll(int, int);
static int utf8decode(char *, long *);
static int utf8encode(long *, char *);
@ -806,6 +807,8 @@ tscrolldown(int orig, int n) {
term.line[i] = term.line[i-n];
term.line[i-n] = temp;
}
selscroll(orig, n);
}
void
@ -821,6 +824,31 @@ tscrollup(int orig, int n) {
term.line[i] = term.line[i+n];
term.line[i+n] = temp;
}
selscroll(orig, -n);
}
void
selscroll(int orig, int n) {
if(sel.bx == -1)
return;
if(BETWEEN(sel.by, orig, term.bot) || BETWEEN(sel.ey, orig, term.bot)) {
if((sel.by += n) > term.bot || (sel.ey += n) < term.top) {
sel.bx = -1;
return;
}
if(sel.by < term.top) {
sel.by = term.top;
sel.bx = 0;
}
if(sel.ey > term.bot) {
sel.ey = term.bot;
sel.ex = term.col;
}
sel.b.y = sel.by, sel.b.x = sel.bx;
sel.e.y = sel.ey, sel.e.x = sel.ex;
}
}
void
@ -1077,6 +1105,7 @@ csihandle(void) {
break;
/* XXX: (CSI n I) CHT -- Cursor Forward Tabulation <n> tab stops */
case 'J': /* ED -- Clear screen */
sel.bx = -1;
switch(escseq.arg[0]) {
case 0: /* below */
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
@ -1382,6 +1411,7 @@ tputc(char *c) {
}
}
} else {
if(sel.bx != -1 && BETWEEN(term.c.y, sel.by, sel.ey)) sel.bx = -1;
switch(ascii) {
case '\t':
tputtab();