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Make selection consistent over line breaks.

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Currently, selection is expanded to the end of the line over line breaks only in
regular selection mode, when the line in not empty and when going down and/or
right. This covers all the cases including word selection mode, with the
exception of rectangular selection because it would make this mode too rigid.
This adjustment is made in selsort so I renamed it to selnormalize to better
reflect what it does now.

Signed-off-by: Roberto E. Vargas Caballero <k0ga@shike2.com>
This commit is contained in:
Colona 2014-06-03 04:34:58 +02:00 committed by Roberto E. Vargas Caballero
parent c6fcb78b3a
commit 2323e962e6
1 changed files with 26 additions and 20 deletions
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46
st.c
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@ -441,7 +441,7 @@ static void selclear(XEvent *);
static void selrequest(XEvent *);
static void selinit(void);
static void selsort(void);
static void selnormalize(void);
static inline bool selected(int, int);
static char *getsel(void);
static void selcopy(void);
@ -657,8 +657,19 @@ y2row(int y) {
return LIMIT(y, 0, term.row-1);
}
static int tlinelen(int y) {
int i = term.col;
while (i > 0 && term.line[y][i - 1].c[0] == ' ')
--i;
return i;
}
static void
selsort(void) {
selnormalize(void) {
int i;
if(sel.ob.y == sel.oe.y) {
sel.nb.x = MIN(sel.ob.x, sel.oe.x);
sel.ne.x = MAX(sel.ob.x, sel.oe.x);
@ -668,6 +679,15 @@ selsort(void) {
}
sel.nb.y = MIN(sel.ob.y, sel.oe.y);
sel.ne.y = MAX(sel.ob.y, sel.oe.y);
/* expand selection over line breaks */
if (sel.type == SEL_RECTANGULAR)
return;
i = tlinelen(sel.nb.y);
if (i < sel.nb.x)
sel.nb.x = i;
if (tlinelen(sel.ne.y) <= sel.ne.x)
sel.ne.x = term.col - 1;
}
static inline bool
@ -683,8 +703,6 @@ selected(int x, int y) {
void
selsnap(int mode, int *x, int *y, int direction) {
int i;
switch(mode) {
case SNAP_WORD:
/*
@ -716,7 +734,7 @@ selsnap(int mode, int *x, int *y, int direction) {
continue;
}
if(strchr(worddelimiters,
if(*x >= tlinelen(*y) || strchr(worddelimiters,
term.line[*y][*x+direction].c[0])) {
break;
}
@ -747,18 +765,6 @@ selsnap(int mode, int *x, int *y, int direction) {
}
}
break;
default:
/*
* Select the whole line when the end of line is reached.
*/
if(direction > 0) {
i = term.col;
while(--i > 0 && term.line[*y][i].c[0] == ' ')
/* nothing */;
if(i > 0 && i < *x)
*x = term.col - 1;
}
break;
}
}
@ -780,7 +786,7 @@ getbuttoninfo(XEvent *e) {
selsnap(sel.snap, &sel.oe.x, &sel.oe.y, -1);
selsnap(sel.snap, &sel.ob.x, &sel.ob.y, +1);
}
selsort();
selnormalize();
sel.type = SEL_REGULAR;
for(type = 1; type < LEN(selmasks); ++type) {
@ -896,7 +902,7 @@ bpress(XEvent *e) {
}
selsnap(sel.snap, &sel.ob.x, &sel.ob.y, -1);
selsnap(sel.snap, &sel.oe.x, &sel.oe.y, +1);
selsort();
selnormalize();
/*
* Draw selection, unless it's regular and we don't want to
@ -1451,7 +1457,7 @@ selscroll(int orig, int n) {
sel.oe.x = term.col;
}
}
selsort();
selnormalize();
}
}