X-Git-Url: https://git.xinqibao.xyz/st.git/blobdiff_plain/8b564c1a3f51c08e64c2f589852a02b8595d44ca..88d8293fb4ba150a5f19d58d133b5db93d9dcfa5:/st.c?ds=sidebyside
diff --git a/st.c b/st.c
index 9cfa547..504239e 100644
--- a/st.c
+++ b/st.c
@@ -42,6 +42,7 @@
#define STR_ARG_SIZ ESC_ARG_SIZ
/* macros */
+#define IS_SET(flag) ((term.mode & (flag)) != 0)
#define NUMMAXLEN(x) ((int)(sizeof(x) * 2.56 + 0.5) + 1)
#define ISCONTROLC0(c) (BETWEEN(c, 0, 0x1f) || (c) == '\177')
#define ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f))
@@ -51,6 +52,17 @@
/* constants */
#define ISO14755CMD "dmenu -w \"$WINDOWID\" -p codepoint: </dev/null"
+enum term_mode {
+ MODE_WRAP = 1 << 0,
+ MODE_INSERT = 1 << 1,
+ MODE_ALTSCREEN = 1 << 2,
+ MODE_CRLF = 1 << 3,
+ MODE_ECHO = 1 << 4,
+ MODE_PRINT = 1 << 5,
+ MODE_UTF8 = 1 << 6,
+ MODE_SIXEL = 1 << 7,
+};
+
enum cursor_movement {
CURSOR_SAVE,
CURSOR_LOAD
@@ -108,6 +120,7 @@ typedef struct {
static void execsh(char **);
static void stty(char **);
static void sigchld(int);
+static void ttywriteraw(const char *, size_t);
static void csidump(void);
static void csihandle(void);
@@ -140,6 +153,7 @@ static void tscrollup(int, int);
static void tscrolldown(int, int);
static void tsetattr(int *, int);
static void tsetchar(Rune, Glyph *, int, int);
+static void tsetdirt(int, int);
static void tsetscroll(int, int);
static void tswapscreen(void);
static void tsetmode(int, int, int *, int);
@@ -152,6 +166,8 @@ static int32_t tdefcolor(int *, int *, int);
static void tdeftran(char);
static void tstrsequence(uchar);
+static void drawregion(int, int, int, int);
+
static void selscroll(int, int);
static void selsnap(int *, int *, int);
@@ -166,11 +182,11 @@ static ssize_t xwrite(int, const char *, size_t);
/* Globals */
Term term;
-Selection sel;
int cmdfd;
pid_t pid;
int oldbutton = 3; /* button event on startup: 3 = release */
+static Selection sel;
static CSIEscape csiescseq;
static STREscape strescseq;
static int iofd = 1;
@@ -365,13 +381,9 @@ base64dec(const char *src)
void
selinit(void)
{
- clock_gettime(CLOCK_MONOTONIC, &sel.tclick1);
- clock_gettime(CLOCK_MONOTONIC, &sel.tclick2);
sel.mode = SEL_IDLE;
sel.snap = 0;
sel.ob.x = -1;
- sel.primary = NULL;
- sel.clipboard = NULL;
}
int
@@ -388,6 +400,52 @@ tlinelen(int y)
return i;
}
+void
+selstart(int col, int row, int snap)
+{
+ selclear();
+ sel.mode = SEL_EMPTY;
+ sel.type = SEL_REGULAR;
+ sel.snap = snap;
+ sel.oe.x = sel.ob.x = col;
+ sel.oe.y = sel.ob.y = row;
+ selnormalize();
+
+ if (sel.snap != 0)
+ sel.mode = SEL_READY;
+ tsetdirt(sel.nb.y, sel.ne.y);
+}
+
+void
+selextend(int col, int row, int type, int done)
+{
+ int oldey, oldex, oldsby, oldsey, oldtype;
+
+ if (!sel.mode)
+ return;
+ if (done && sel.mode == SEL_EMPTY) {
+ selclear();
+ return;
+ }
+
+ oldey = sel.oe.y;
+ oldex = sel.oe.x;
+ oldsby = sel.nb.y;
+ oldsey = sel.ne.y;
+ oldtype = sel.type;
+
+ sel.alt = IS_SET(MODE_ALTSCREEN);
+ sel.oe.x = col;
+ sel.oe.y = row;
+ selnormalize();
+ sel.type = type;
+
+ if (oldey != sel.oe.y || oldex != sel.oe.x || oldtype != sel.type)
+ tsetdirt(MIN(sel.nb.y, oldsby), MAX(sel.ne.y, oldsey));
+
+ sel.mode = done ? SEL_IDLE : SEL_READY;
+}
+
void
selnormalize(void)
{
@@ -419,7 +477,8 @@ selnormalize(void)
int
selected(int x, int y)
{
- if (sel.mode == SEL_EMPTY)
+ if (sel.mode == SEL_EMPTY || sel.ob.x == -1 ||
+ sel.alt != IS_SET(MODE_ALTSCREEN))
return 0;
if (sel.type == SEL_RECTANGULAR)
@@ -670,7 +729,6 @@ void
ttynew(char *line, char *out, char **args)
{
int m, s;
- struct winsize w = {term.row, term.col, 0, 0};
if (out) {
term.mode |= MODE_PRINT;
@@ -691,7 +749,7 @@ ttynew(char *line, char *out, char **args)
}
/* seems to work fine on linux, openbsd and freebsd */
- if (openpty(&m, &s, NULL, NULL, &w) < 0)
+ if (openpty(&m, &s, NULL, NULL, NULL) < 0)
die("openpty failed: %s\n", strerror(errno));
switch (pid = fork()) {
@@ -741,7 +799,35 @@ ttyread(void)
}
void
-ttywrite(const char *s, size_t n)
+ttywrite(const char *s, size_t n, int may_echo)
+{
+ const char *next;
+
+ if (may_echo && IS_SET(MODE_ECHO))
+ twrite(s, n, 1);
+
+ if (!IS_SET(MODE_CRLF)) {
+ ttywriteraw(s, n);
+ return;
+ }
+
+ /* This is similar to how the kernel handles ONLCR for ttys */
+ while (n > 0) {
+ if (*s == '\r') {
+ next = s + 1;
+ ttywriteraw("\r\n", 2);
+ } else {
+ next = memchr(s, '\r', n);
+ DEFAULT(next, s + n);
+ ttywriteraw(s, next - s);
+ }
+ n -= next - s;
+ s = next;
+ }
+}
+
+void
+ttywriteraw(const char *s, size_t n)
{
fd_set wfd, rfd;
ssize_t r;
@@ -797,14 +883,6 @@ write_error:
die("write error on tty: %s\n", strerror(errno));
}
-void
-ttysend(char *s, size_t n)
-{
- ttywrite(s, n);
- if (IS_SET(MODE_ECHO))
- twrite(s, n, 1);
-}
-
void
ttyresize(int tw, int th)
{
@@ -913,8 +991,6 @@ tnew(int col, int row)
{
term = (Term){ .c = { .attr = { .fg = defaultfg, .bg = defaultbg } } };
tresize(col, row);
- term.numlock = 1;
-
treset();
}
@@ -1350,20 +1426,16 @@ tsetscroll(int t, int b)
void
tsetmode(int priv, int set, int *args, int narg)
{
- int *lim, mode;
- int alt;
+ int alt, *lim;
for (lim = args + narg; args < lim; ++args) {
if (priv) {
switch (*args) {
case 1: /* DECCKM -- Cursor key */
- MODBIT(term.mode, set, MODE_APPCURSOR);
+ xsetmode(set, MODE_APPCURSOR);
break;
case 5: /* DECSCNM -- Reverse video */
- mode = term.mode;
- MODBIT(term.mode, set, MODE_REVERSE);
- if (mode != term.mode)
- redraw();
+ xsetmode(set, MODE_REVERSE);
break;
case 6: /* DECOM -- Origin */
MODBIT(term.c.state, set, CURSOR_ORIGIN);
@@ -1383,36 +1455,36 @@ tsetmode(int priv, int set, int *args, int narg)
case 12: /* att610 -- Start blinking cursor (IGNORED) */
break;
case 25: /* DECTCEM -- Text Cursor Enable Mode */
- MODBIT(term.mode, !set, MODE_HIDE);
+ xsetmode(!set, MODE_HIDE);
break;
case 9: /* X10 mouse compatibility mode */
xsetpointermotion(0);
- MODBIT(term.mode, 0, MODE_MOUSE);
- MODBIT(term.mode, set, MODE_MOUSEX10);
+ xsetmode(0, MODE_MOUSE);
+ xsetmode(set, MODE_MOUSEX10);
break;
case 1000: /* 1000: report button press */
xsetpointermotion(0);
- MODBIT(term.mode, 0, MODE_MOUSE);
- MODBIT(term.mode, set, MODE_MOUSEBTN);
+ xsetmode(0, MODE_MOUSE);
+ xsetmode(set, MODE_MOUSEBTN);
break;
case 1002: /* 1002: report motion on button press */
xsetpointermotion(0);
- MODBIT(term.mode, 0, MODE_MOUSE);
- MODBIT(term.mode, set, MODE_MOUSEMOTION);
+ xsetmode(0, MODE_MOUSE);
+ xsetmode(set, MODE_MOUSEMOTION);
break;
case 1003: /* 1003: enable all mouse motions */
xsetpointermotion(set);
- MODBIT(term.mode, 0, MODE_MOUSE);
- MODBIT(term.mode, set, MODE_MOUSEMANY);
+ xsetmode(0, MODE_MOUSE);
+ xsetmode(set, MODE_MOUSEMANY);
break;
case 1004: /* 1004: send focus events to tty */
- MODBIT(term.mode, set, MODE_FOCUS);
+ xsetmode(set, MODE_FOCUS);
break;
case 1006: /* 1006: extended reporting mode */
- MODBIT(term.mode, set, MODE_MOUSESGR);
+ xsetmode(set, MODE_MOUSESGR);
break;
case 1034:
- MODBIT(term.mode, set, MODE_8BIT);
+ xsetmode(set, MODE_8BIT);
break;
case 1049: /* swap screen & set/restore cursor as xterm */
if (!allowaltscreen)
@@ -1437,7 +1509,7 @@ tsetmode(int priv, int set, int *args, int narg)
tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
break;
case 2004: /* 2004: bracketed paste mode */
- MODBIT(term.mode, set, MODE_BRCKTPASTE);
+ xsetmode(set, MODE_BRCKTPASTE);
break;
/* Not implemented mouse modes. See comments there. */
case 1001: /* mouse highlight mode; can hang the
@@ -1458,8 +1530,8 @@ tsetmode(int priv, int set, int *args, int narg)
switch (*args) {
case 0: /* Error (IGNORED) */
break;
- case 2: /* KAM -- keyboard action */
- MODBIT(term.mode, set, MODE_KBDLOCK);
+ case 2:
+ xsetmode(set, MODE_KBDLOCK);
break;
case 4: /* IRM -- Insertion-replacement */
MODBIT(term.mode, set, MODE_INSERT);
@@ -1527,7 +1599,7 @@ csihandle(void)
break;
case 'c': /* DA -- Device Attributes */
if (csiescseq.arg[0] == 0)
- ttywrite(vtiden, strlen(vtiden));
+ ttywrite(vtiden, strlen(vtiden), 0);
break;
case 'C': /* CUF -- Cursor <n> Forward */
case 'a': /* HPR -- Cursor <n> Forward */
@@ -1655,7 +1727,7 @@ csihandle(void)
if (csiescseq.arg[0] == 6) {
len = snprintf(buf, sizeof(buf),"\033[%i;%iR",
term.c.y+1, term.c.x+1);
- ttywrite(buf, len);
+ ttywrite(buf, len, 0);
}
break;
case 'r': /* DECSTBM -- Set Scrolling Region */
@@ -1873,7 +1945,7 @@ iso14755(const Arg *arg)
(*e != '\n' && *e != '\0'))
return;
- ttysend(uc, utf8encode(utf32, uc));
+ ttywrite(uc, utf8encode(utf32, uc), 1);
}
void
@@ -2086,7 +2158,7 @@ tcontrolcode(uchar ascii)
case 0x99: /* TODO: SGCI */
break;
case 0x9a: /* DECID -- Identify Terminal */
- ttywrite(vtiden, strlen(vtiden));
+ ttywrite(vtiden, strlen(vtiden), 0);
break;
case 0x9b: /* TODO: CSI */
case 0x9c: /* TODO: ST */
@@ -2158,7 +2230,7 @@ eschandle(uchar ascii)
}
break;
case 'Z': /* DECID -- Identify Terminal */
- ttywrite(vtiden, strlen(vtiden));
+ ttywrite(vtiden, strlen(vtiden), 0);
break;
case 'c': /* RIS -- Reset to inital state */
treset();
@@ -2166,10 +2238,10 @@ eschandle(uchar ascii)
xloadcols();
break;
case '=': /* DECPAM -- Application keypad */
- term.mode |= MODE_APPKEYPAD;
+ xsetmode(1, MODE_APPKEYPAD);
break;
case '>': /* DECPNM -- Normal keypad */
- term.mode &= ~MODE_APPKEYPAD;
+ xsetmode(0, MODE_APPKEYPAD);
break;
case '7': /* DECSC -- Save Cursor */
tcursor(CURSOR_SAVE);
@@ -2457,14 +2529,31 @@ resettitle(void)
}
void
-redraw(void)
+drawregion(int x1, int y1, int x2, int y2)
{
- tfulldirt();
- draw();
+ int y;
+ for (y = y1; y < y2; y++) {
+ if (!term.dirty[y])
+ continue;
+
+ term.dirty[y] = 0;
+ xdrawline(term.line[y], x1, y, x2);
+ }
}
void
-numlock(const Arg *dummy)
+draw(void)
{
- term.numlock ^= 1;
+ if (!xstartdraw())
+ return;
+ drawregion(0, 0, term.col, term.row);
+ xdrawcursor();
+ xfinishdraw();
+}
+
+void
+redraw(void)
+{
+ tfulldirt();
+ draw();
}