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4 changed files with 250 additions and 55 deletions

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@ -168,12 +168,50 @@ static unsigned int defaultattr = 11;
*/
static uint forcemousemod = ShiftMask;
/*
* Xresources preferences to load at startup
*/
ResourcePref resources[] = {
{ "font", STRING, &font },
{ "color0", STRING, &colorname[0] },
{ "color1", STRING, &colorname[1] },
{ "color2", STRING, &colorname[2] },
{ "color3", STRING, &colorname[3] },
{ "color4", STRING, &colorname[4] },
{ "color5", STRING, &colorname[5] },
{ "color6", STRING, &colorname[6] },
{ "color7", STRING, &colorname[7] },
{ "color8", STRING, &colorname[8] },
{ "color9", STRING, &colorname[9] },
{ "color10", STRING, &colorname[10] },
{ "color11", STRING, &colorname[11] },
{ "color12", STRING, &colorname[12] },
{ "color13", STRING, &colorname[13] },
{ "color14", STRING, &colorname[14] },
{ "color15", STRING, &colorname[15] },
{ "background", STRING, &colorname[256] },
{ "foreground", STRING, &colorname[257] },
{ "cursorColor", STRING, &colorname[258] },
{ "termname", STRING, &termname },
{ "shell", STRING, &shell },
{ "minlatency", INTEGER, &minlatency },
{ "maxlatency", INTEGER, &maxlatency },
{ "blinktimeout", INTEGER, &blinktimeout },
{ "bellvolume", INTEGER, &bellvolume },
{ "tabspaces", INTEGER, &tabspaces },
{ "borderpx", INTEGER, &borderpx },
{ "cwscale", FLOAT, &cwscale },
{ "chscale", FLOAT, &chscale },
};
/*
* Internal mouse shortcuts.
* Beware that overloading Button1 will disable the selection.
*/
static MouseShortcut mshortcuts[] = {
/* mask button function argument release */
{ XK_ANY_MOD, Button4, kscrollup, {.i = 1}, 0, /* !alt */ -1 },
{ XK_ANY_MOD, Button5, kscrolldown, {.i = 1}, 0, /* !alt */ -1 },
{ XK_ANY_MOD, Button2, selpaste, {.i = 0}, 1 },
{ ShiftMask, Button4, ttysend, {.s = "\033[5;2~"} },
{ XK_ANY_MOD, Button4, ttysend, {.s = "\031"} },
@ -199,6 +237,8 @@ static Shortcut shortcuts[] = {
{ TERMMOD, XK_Y, selpaste, {.i = 0} },
{ ShiftMask, XK_Insert, selpaste, {.i = 0} },
{ TERMMOD, XK_Num_Lock, numlock, {.i = 0} },
{ ShiftMask, XK_Page_Up, kscrollup, {.i = -1} },
{ ShiftMask, XK_Page_Down, kscrolldown, {.i = -1} },
};
/*

130
st.c
View File

@ -35,6 +35,7 @@
#define ESC_ARG_SIZ 16
#define STR_BUF_SIZ ESC_BUF_SIZ
#define STR_ARG_SIZ ESC_ARG_SIZ
#define HISTSIZE 2000
/* macros */
#define IS_SET(flag) ((term.mode & (flag)) != 0)
@ -42,6 +43,9 @@
#define ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f))
#define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c))
#define ISDELIM(u) (u && wcschr(worddelimiters, u))
#define TLINE(y) ((y) < term.scr ? term.hist[((y) + term.histi - \
term.scr + HISTSIZE + 1) % HISTSIZE] : \
term.line[(y) - term.scr])
enum term_mode {
MODE_WRAP = 1 << 0,
@ -115,6 +119,9 @@ typedef struct {
int col; /* nb col */
Line *line; /* screen */
Line *alt; /* alternate screen */
Line hist[HISTSIZE]; /* history buffer */
int histi; /* history index */
int scr; /* scroll back */
int *dirty; /* dirtyness of lines */
TCursor c; /* cursor */
int ocx; /* old cursor col */
@ -184,8 +191,8 @@ static void tnewline(int);
static void tputtab(int);
static void tputc(Rune);
static void treset(void);
static void tscrollup(int, int);
static void tscrolldown(int, int);
static void tscrollup(int, int, int);
static void tscrolldown(int, int, int);
static void tsetattr(int *, int);
static void tsetchar(Rune, Glyph *, int, int);
static void tsetdirt(int, int);
@ -414,10 +421,10 @@ tlinelen(int y)
{
int i = term.col;
if (term.line[y][i - 1].mode & ATTR_WRAP)
if (TLINE(y)[i - 1].mode & ATTR_WRAP)
return i;
while (i > 0 && term.line[y][i - 1].u == ' ')
while (i > 0 && TLINE(y)[i - 1].u == ' ')
--i;
return i;
@ -526,7 +533,7 @@ selsnap(int *x, int *y, int direction)
* Snap around if the word wraps around at the end or
* beginning of a line.
*/
prevgp = &term.line[*y][*x];
prevgp = &TLINE(*y)[*x];
prevdelim = ISDELIM(prevgp->u);
for (;;) {
newx = *x + direction;
@ -541,14 +548,14 @@ selsnap(int *x, int *y, int direction)
yt = *y, xt = *x;
else
yt = newy, xt = newx;
if (!(term.line[yt][xt].mode & ATTR_WRAP))
if (!(TLINE(yt)[xt].mode & ATTR_WRAP))
break;
}
if (newx >= tlinelen(newy))
break;
gp = &term.line[newy][newx];
gp = &TLINE(newy)[newx];
delim = ISDELIM(gp->u);
if (!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim
|| (delim && gp->u != prevgp->u)))
@ -569,14 +576,14 @@ selsnap(int *x, int *y, int direction)
*x = (direction < 0) ? 0 : term.col - 1;
if (direction < 0) {
for (; *y > 0; *y += direction) {
if (!(term.line[*y-1][term.col-1].mode
if (!(TLINE(*y-1)[term.col-1].mode
& ATTR_WRAP)) {
break;
}
}
} else if (direction > 0) {
for (; *y < term.row-1; *y += direction) {
if (!(term.line[*y][term.col-1].mode
if (!(TLINE(*y)[term.col-1].mode
& ATTR_WRAP)) {
break;
}
@ -607,13 +614,13 @@ getsel(void)
}
if (sel.type == SEL_RECTANGULAR) {
gp = &term.line[y][sel.nb.x];
gp = &TLINE(y)[sel.nb.x];
lastx = sel.ne.x;
} else {
gp = &term.line[y][sel.nb.y == y ? sel.nb.x : 0];
gp = &TLINE(y)[sel.nb.y == y ? sel.nb.x : 0];
lastx = (sel.ne.y == y) ? sel.ne.x : term.col-1;
}
last = &term.line[y][MIN(lastx, linelen-1)];
last = &TLINE(y)[MIN(lastx, linelen-1)];
while (last >= gp && last->u == ' ')
--last;
@ -848,6 +855,9 @@ void
ttywrite(const char *s, size_t n, int may_echo)
{
const char *next;
Arg arg = (Arg) { .i = term.scr };
kscrolldown(&arg);
if (may_echo && IS_SET(MODE_ECHO))
twrite(s, n, 1);
@ -1047,6 +1057,11 @@ tnew(int col, int row)
treset();
}
int tisaltscr(void)
{
return IS_SET(MODE_ALTSCREEN);
}
void
tswapscreen(void)
{
@ -1059,13 +1074,53 @@ tswapscreen(void)
}
void
tscrolldown(int orig, int n)
kscrolldown(const Arg* a)
{
int n = a->i;
if (n < 0)
n = term.row + n;
if (n > term.scr)
n = term.scr;
if (term.scr > 0) {
term.scr -= n;
selscroll(0, -n);
tfulldirt();
}
}
void
kscrollup(const Arg* a)
{
int n = a->i;
if (n < 0)
n = term.row + n;
if (term.scr <= HISTSIZE-n) {
term.scr += n;
selscroll(0, n);
tfulldirt();
}
}
void
tscrolldown(int orig, int n, int copyhist)
{
int i;
Line temp;
LIMIT(n, 0, term.bot-orig+1);
if (copyhist) {
term.histi = (term.histi - 1 + HISTSIZE) % HISTSIZE;
temp = term.hist[term.histi];
term.hist[term.histi] = term.line[term.bot];
term.line[term.bot] = temp;
}
tsetdirt(orig, term.bot-n);
tclearregion(0, term.bot-n+1, term.col-1, term.bot);
@ -1075,17 +1130,28 @@ tscrolldown(int orig, int n)
term.line[i-n] = temp;
}
selscroll(orig, n);
if (term.scr == 0)
selscroll(orig, n);
}
void
tscrollup(int orig, int n)
tscrollup(int orig, int n, int copyhist)
{
int i;
Line temp;
LIMIT(n, 0, term.bot-orig+1);
if (copyhist) {
term.histi = (term.histi + 1) % HISTSIZE;
temp = term.hist[term.histi];
term.hist[term.histi] = term.line[orig];
term.line[orig] = temp;
}
if (term.scr > 0 && term.scr < HISTSIZE)
term.scr = MIN(term.scr + n, HISTSIZE-1);
tclearregion(0, orig, term.col-1, orig+n-1);
tsetdirt(orig+n, term.bot);
@ -1095,7 +1161,8 @@ tscrollup(int orig, int n)
term.line[i+n] = temp;
}
selscroll(orig, -n);
if (term.scr == 0)
selscroll(orig, -n);
}
void
@ -1124,7 +1191,7 @@ tnewline(int first_col)
int y = term.c.y;
if (y == term.bot) {
tscrollup(term.top, 1);
tscrollup(term.top, 1, 1);
} else {
y++;
}
@ -1289,14 +1356,14 @@ void
tinsertblankline(int n)
{
if (BETWEEN(term.c.y, term.top, term.bot))
tscrolldown(term.c.y, n);
tscrolldown(term.c.y, n, 0);
}
void
tdeleteline(int n)
{
if (BETWEEN(term.c.y, term.top, term.bot))
tscrollup(term.c.y, n);
tscrollup(term.c.y, n, 0);
}
int32_t
@ -1733,11 +1800,11 @@ csihandle(void)
break;
case 'S': /* SU -- Scroll <n> line up */
DEFAULT(csiescseq.arg[0], 1);
tscrollup(term.top, csiescseq.arg[0]);
tscrollup(term.top, csiescseq.arg[0], 0);
break;
case 'T': /* SD -- Scroll <n> line down */
DEFAULT(csiescseq.arg[0], 1);
tscrolldown(term.top, csiescseq.arg[0]);
tscrolldown(term.top, csiescseq.arg[0], 0);
break;
case 'L': /* IL -- Insert <n> blank lines */
DEFAULT(csiescseq.arg[0], 1);
@ -2249,7 +2316,7 @@ eschandle(uchar ascii)
return 0;
case 'D': /* IND -- Linefeed */
if (term.c.y == term.bot) {
tscrollup(term.top, 1);
tscrollup(term.top, 1, 1);
} else {
tmoveto(term.c.x, term.c.y+1);
}
@ -2262,7 +2329,7 @@ eschandle(uchar ascii)
break;
case 'M': /* RI -- Reverse index */
if (term.c.y == term.top) {
tscrolldown(term.top, 1);
tscrolldown(term.top, 1, 1);
} else {
tmoveto(term.c.x, term.c.y-1);
}
@ -2472,7 +2539,7 @@ twrite(const char *buf, int buflen, int show_ctrl)
void
tresize(int col, int row)
{
int i;
int i, j;
int minrow = MIN(row, term.row);
int mincol = MIN(col, term.col);
int *bp;
@ -2509,6 +2576,14 @@ tresize(int col, int row)
term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
for (i = 0; i < HISTSIZE; i++) {
term.hist[i] = xrealloc(term.hist[i], col * sizeof(Glyph));
for (j = mincol; j < col; j++) {
term.hist[i][j] = term.c.attr;
term.hist[i][j].u = ' ';
}
}
/* resize each row to new width, zero-pad if needed */
for (i = 0; i < minrow; i++) {
term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
@ -2567,7 +2642,7 @@ drawregion(int x1, int y1, int x2, int y2)
continue;
term.dirty[y] = 0;
xdrawline(term.line[y], x1, y, x2);
xdrawline(TLINE(y), x1, y, x2);
}
}
@ -2588,8 +2663,9 @@ draw(void)
cx--;
drawregion(0, 0, term.col, term.row);
xdrawcursor(cx, term.c.y, term.line[term.c.y][cx],
term.ocx, term.ocy, term.line[term.ocy][term.ocx]);
if (term.scr == 0)
xdrawcursor(cx, term.c.y, term.line[term.c.y][cx],
term.ocx, term.ocy, term.line[term.ocy][term.ocx]);
term.ocx = cx;
term.ocy = term.c.y;
xfinishdraw();

3
st.h
View File

@ -81,12 +81,15 @@ void die(const char *, ...);
void redraw(void);
void draw(void);
void kscrolldown(const Arg *);
void kscrollup(const Arg *);
void printscreen(const Arg *);
void printsel(const Arg *);
void sendbreak(const Arg *);
void toggleprinter(const Arg *);
int tattrset(int);
int tisaltscr(void);
void tnew(int, int);
void tresize(int, int);
void tsetdirtattr(int);

132
x.c
View File

@ -14,6 +14,7 @@
#include <X11/keysym.h>
#include <X11/Xft/Xft.h>
#include <X11/XKBlib.h>
#include <X11/Xresource.h>
char *argv0;
#include "arg.h"
@ -34,6 +35,7 @@ typedef struct {
void (*func)(const Arg *);
const Arg arg;
uint release;
int altscrn; /* 0: don't care, -1: not alt screen, 1: alt screen */
} MouseShortcut;
typedef struct {
@ -45,6 +47,19 @@ typedef struct {
signed char appcursor; /* application cursor */
} Key;
/* Xresources preferences */
enum resource_type {
STRING = 0,
INTEGER = 1,
FLOAT = 2
};
typedef struct {
char *name;
enum resource_type type;
void *dst;
} ResourcePref;
/* X modifiers */
#define XK_ANY_MOD UINT_MAX
#define XK_NO_MOD 0
@ -81,6 +96,7 @@ typedef XftGlyphFontSpec GlyphFontSpec;
typedef struct {
int tw, th; /* tty width and height */
int w, h; /* window width and height */
int hborderpx, vborderpx;
int ch; /* char height */
int cw; /* char width */
int mode; /* window state/mode flags */
@ -331,7 +347,7 @@ ttysend(const Arg *arg)
int
evcol(XEvent *e)
{
int x = e->xbutton.x - borderpx;
int x = e->xbutton.x - win.hborderpx;
LIMIT(x, 0, win.tw - 1);
return x / win.cw;
}
@ -339,7 +355,7 @@ evcol(XEvent *e)
int
evrow(XEvent *e)
{
int y = e->xbutton.y - borderpx;
int y = e->xbutton.y - win.vborderpx;
LIMIT(y, 0, win.th - 1);
return y / win.ch;
}
@ -446,6 +462,7 @@ mouseaction(XEvent *e, uint release)
for (ms = mshortcuts; ms < mshortcuts + LEN(mshortcuts); ms++) {
if (ms->release == release &&
ms->button == e->xbutton.button &&
(!ms->altscrn || (ms->altscrn == (tisaltscr() ? 1 : -1))) &&
(match(ms->mod, state) || /* exact or forced */
match(ms->mod, state & ~forcemousemod))) {
ms->func(&(ms->arg));
@ -721,6 +738,9 @@ cresize(int width, int height)
col = MAX(1, col);
row = MAX(1, row);
win.hborderpx = (win.w - col * win.cw) / 2;
win.vborderpx = (win.h - row * win.ch) / 2;
tresize(col, row);
xresize(col, row);
ttyresize(win.tw, win.th);
@ -828,8 +848,8 @@ xclear(int x1, int y1, int x2, int y2)
void
xhints(void)
{
XClassHint class = {opt_name ? opt_name : termname,
opt_class ? opt_class : termname};
XClassHint class = {opt_name ? opt_name : "st",
opt_class ? opt_class : "St"};
XWMHints wm = {.flags = InputHint, .input = 1};
XSizeHints *sizeh;
@ -1104,8 +1124,6 @@ xinit(int cols, int rows)
pid_t thispid = getpid();
XColor xmousefg, xmousebg;
if (!(xw.dpy = XOpenDisplay(NULL)))
die("can't open display\n");
xw.scr = XDefaultScreen(xw.dpy);
xw.vis = XDefaultVisual(xw.dpy, xw.scr);
@ -1121,8 +1139,8 @@ xinit(int cols, int rows)
xloadcols();
/* adjust fixed window geometry */
win.w = 2 * borderpx + cols * win.cw;
win.h = 2 * borderpx + rows * win.ch;
win.w = 2 * win.hborderpx + cols * win.cw;
win.h = 2 * win.vborderpx + rows * win.ch;
if (xw.gm & XNegative)
xw.l += DisplayWidth(xw.dpy, xw.scr) - win.w - 2;
if (xw.gm & YNegative)
@ -1211,7 +1229,7 @@ xinit(int cols, int rows)
int
xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x, int y)
{
float winx = borderpx + x * win.cw, winy = borderpx + y * win.ch, xp, yp;
float winx = win.hborderpx + x * win.cw, winy = win.vborderpx + y * win.ch, xp, yp;
ushort mode, prevmode = USHRT_MAX;
Font *font = &dc.font;
int frcflags = FRC_NORMAL;
@ -1344,7 +1362,7 @@ void
xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y)
{
int charlen = len * ((base.mode & ATTR_WIDE) ? 2 : 1);
int winx = borderpx + x * win.cw, winy = borderpx + y * win.ch,
int winx = win.hborderpx + x * win.cw, winy = win.vborderpx + y * win.ch,
width = charlen * win.cw;
Color *fg, *bg, *temp, revfg, revbg, truefg, truebg;
XRenderColor colfg, colbg;
@ -1434,17 +1452,17 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i
/* Intelligent cleaning up of the borders. */
if (x == 0) {
xclear(0, (y == 0)? 0 : winy, borderpx,
xclear(0, (y == 0)? 0 : winy, win.vborderpx,
winy + win.ch +
((winy + win.ch >= borderpx + win.th)? win.h : 0));
((winy + win.ch >= win.vborderpx + win.th)? win.h : 0));
}
if (winx + width >= borderpx + win.tw) {
if (winx + width >= win.hborderpx + win.tw) {
xclear(winx + width, (y == 0)? 0 : winy, win.w,
((winy + win.ch >= borderpx + win.th)? win.h : (winy + win.ch)));
((winy + win.ch >= win.vborderpx + win.th)? win.h : (winy + win.ch)));
}
if (y == 0)
xclear(winx, 0, winx + width, borderpx);
if (winy + win.ch >= borderpx + win.th)
xclear(winx, 0, winx + width, win.hborderpx);
if (winy + win.ch >= win.vborderpx + win.th)
xclear(winx, winy + win.ch, winx + width, win.h);
/* Clean up the region we want to draw to. */
@ -1538,35 +1556,35 @@ xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og)
case 3: /* Blinking Underline */
case 4: /* Steady Underline */
XftDrawRect(xw.draw, &drawcol,
borderpx + cx * win.cw,
borderpx + (cy + 1) * win.ch - \
win.hborderpx + cx * win.cw,
win.vborderpx + (cy + 1) * win.ch - \
cursorthickness,
win.cw, cursorthickness);
break;
case 5: /* Blinking bar */
case 6: /* Steady bar */
XftDrawRect(xw.draw, &drawcol,
borderpx + cx * win.cw,
borderpx + cy * win.ch,
win.hborderpx + cx * win.cw,
win.vborderpx + cy * win.ch,
cursorthickness, win.ch);
break;
}
} else {
XftDrawRect(xw.draw, &drawcol,
borderpx + cx * win.cw,
borderpx + cy * win.ch,
win.hborderpx + cx * win.cw,
win.vborderpx + cy * win.ch,
win.cw - 1, 1);
XftDrawRect(xw.draw, &drawcol,
borderpx + cx * win.cw,
borderpx + cy * win.ch,
win.hborderpx + cx * win.cw,
win.vborderpx + cy * win.ch,
1, win.ch - 1);
XftDrawRect(xw.draw, &drawcol,
borderpx + (cx + 1) * win.cw - 1,
borderpx + cy * win.ch,
win.hborderpx + (cx + 1) * win.cw - 1,
win.vborderpx + cy * win.ch,
1, win.ch - 1);
XftDrawRect(xw.draw, &drawcol,
borderpx + cx * win.cw,
borderpx + (cy + 1) * win.ch - 1,
win.hborderpx + cx * win.cw,
win.vborderpx + (cy + 1) * win.ch - 1,
win.cw, 1);
}
}
@ -1978,6 +1996,59 @@ run(void)
}
}
int
resource_load(XrmDatabase db, char *name, enum resource_type rtype, void *dst)
{
char **sdst = dst;
int *idst = dst;
float *fdst = dst;
char fullname[256];
char fullclass[256];
char *type;
XrmValue ret;
snprintf(fullname, sizeof(fullname), "%s.%s",
opt_name ? opt_name : "st", name);
snprintf(fullclass, sizeof(fullclass), "%s.%s",
opt_class ? opt_class : "St", name);
fullname[sizeof(fullname) - 1] = fullclass[sizeof(fullclass) - 1] = '\0';
XrmGetResource(db, fullname, fullclass, &type, &ret);
if (ret.addr == NULL || strncmp("String", type, 64))
return 1;
switch (rtype) {
case STRING:
*sdst = ret.addr;
break;
case INTEGER:
*idst = strtoul(ret.addr, NULL, 10);
break;
case FLOAT:
*fdst = strtof(ret.addr, NULL);
break;
}
return 0;
}
void
config_init(void)
{
char *resm;
XrmDatabase db;
ResourcePref *p;
XrmInitialize();
resm = XResourceManagerString(xw.dpy);
if (!resm)
return;
db = XrmGetStringDatabase(resm);
for (p = resources; p < resources + LEN(resources); p++)
resource_load(db, p->name, p->type, p->dst);
}
void
usage(void)
{
@ -2051,6 +2122,11 @@ run:
setlocale(LC_CTYPE, "");
XSetLocaleModifiers("");
if(!(xw.dpy = XOpenDisplay(NULL)))
die("Can't open display\n");
config_init();
cols = MAX(cols, 1);
rows = MAX(rows, 1);
tnew(cols, rows);