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selection clicks, shift+arrow keys, fast(er) redraw, key mask in config.h (thx Magnus Leuthner)

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This commit is contained in:
Aurélien Aptel 2011-04-22 00:18:53 +02:00
parent d3c5aba2d9
commit 9d5ea14b9d
3 changed files with 126 additions and 61 deletions
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47
config.def.h
View file

@ -26,32 +26,33 @@ static const char *colorname[] = {
}; };
/* Default colors (colorname index) */ /* Default colors (colorname index) */
/* foreground, background, cursor */ /* foreground, background, cursor */
#define DefaultFG 7 #define DefaultFG 7
#define DefaultBG 0 #define DefaultBG 0
#define DefaultCS 1 #define DefaultCS 1
/* Special keys */ /* Special keys (change & recompile st.info accordingly) */
/* key, mask, output */
static Key key[] = { static Key key[] = {
{ XK_BackSpace, "\177" }, { XK_BackSpace, 0, "\177" },
{ XK_Insert, "\033[2~" }, { XK_Insert, 0, "\033[2~" },
{ XK_Delete, "\033[3~" }, { XK_Delete, 0, "\033[3~" },
{ XK_Home, "\033[1~" }, { XK_Home, 0, "\033[1~" },
{ XK_End, "\033[4~" }, { XK_End, 0, "\033[4~" },
{ XK_Prior, "\033[5~" }, { XK_Prior, 0, "\033[5~" },
{ XK_Next, "\033[6~" }, { XK_Next, 0, "\033[6~" },
{ XK_F1, "\033OP" }, { XK_F1, 0, "\033OP" },
{ XK_F2, "\033OQ" }, { XK_F2, 0, "\033OQ" },
{ XK_F3, "\033OR" }, { XK_F3, 0, "\033OR" },
{ XK_F4, "\033OS" }, { XK_F4, 0, "\033OS" },
{ XK_F5, "\033[15~" }, { XK_F5, 0, "\033[15~" },
{ XK_F6, "\033[17~" }, { XK_F6, 0, "\033[17~" },
{ XK_F7, "\033[18~" }, { XK_F7, 0, "\033[18~" },
{ XK_F8, "\033[19~" }, { XK_F8, 0, "\033[19~" },
{ XK_F9, "\033[20~" }, { XK_F9, 0, "\033[20~" },
{ XK_F10, "\033[21~" }, { XK_F10, 0, "\033[21~" },
{ XK_F11, "\033[23~" }, { XK_F11, 0, "\033[23~" },
{ XK_F12, "\033[24~" }, { XK_F12, 0, "\033[24~" },
}; };
/* Line drawing characters (sometime specific to each font...) */ /* Line drawing characters (sometime specific to each font...) */
@ -61,3 +62,7 @@ static char gfx[] = {
['i'] = '#', ['i'] = '#',
[255] = 0, [255] = 0,
}; };
/* double-click timeout (in milliseconds) between clicks for selection */
#define DOUBLECLICK_TIMEOUT 300
#define TRIPLECLICK_TIMEOUT (2*DOUBLECLICK_TIMEOUT)

136
st.c
View file

@ -22,6 +22,9 @@
#include <X11/cursorfont.h> #include <X11/cursorfont.h>
#include <X11/keysym.h> #include <X11/keysym.h>
#include <sys/time.h>
#include <time.h>
#if defined(__linux) #if defined(__linux)
#include <pty.h> #include <pty.h>
#elif defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__) #elif defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
@ -45,11 +48,12 @@
#define MIN(a, b) ((a) < (b) ? (a) : (b)) #define MIN(a, b) ((a) < (b) ? (a) : (b))
#define MAX(a, b) ((a) < (b) ? (b) : (a)) #define MAX(a, b) ((a) < (b) ? (b) : (a))
#define LEN(a) (sizeof(a) / sizeof(a[0])) #define LEN(a) (sizeof(a) / sizeof(a[0]))
#define DEFAULT(a, b) (a) = (a) ? (a) : (b) #define DEFAULT(a, b) (a) = (a) ? (a) : (b)
#define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b)) #define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b))
#define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x) #define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
#define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg) #define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg)
#define IS_SET(flag) (term.mode & (flag)) #define IS_SET(flag) (term.mode & (flag))
#define TIMEDIFFERENCE(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_usec-t2.tv_usec)/1000)
/* Attribute, Cursor, Character state, Terminal mode, Screen draw mode */ /* Attribute, Cursor, Character state, Terminal mode, Screen draw mode */
enum { ATTR_NULL=0 , ATTR_REVERSE=1 , ATTR_UNDERLINE=2, ATTR_BOLD=4, ATTR_GFX=8 }; enum { ATTR_NULL=0 , ATTR_REVERSE=1 , ATTR_UNDERLINE=2, ATTR_BOLD=4, ATTR_GFX=8 };
@ -57,10 +61,9 @@ enum { CURSOR_UP, CURSOR_DOWN, CURSOR_LEFT, CURSOR_RIGHT,
CURSOR_SAVE, CURSOR_LOAD }; CURSOR_SAVE, CURSOR_LOAD };
enum { CURSOR_DEFAULT = 0, CURSOR_HIDE = 1, CURSOR_WRAPNEXT = 2 }; enum { CURSOR_DEFAULT = 0, CURSOR_HIDE = 1, CURSOR_WRAPNEXT = 2 };
enum { GLYPH_SET=1, GLYPH_DIRTY=2 }; enum { GLYPH_SET=1, GLYPH_DIRTY=2 };
enum { MODE_WRAP=1, MODE_INSERT=2, MODE_APPKEYPAD=4, MODE_ALTSCREEN=8, enum { MODE_WRAP=1, MODE_INSERT=2, MODE_APPKEYPAD=4, MODE_ALTSCREEN=8,
MODE_CRLF=16 }; MODE_CRLF=16 };
enum { ESC_START=1, ESC_CSI=2, ESC_OSC=4, ESC_TITLE=8, ESC_ALTCHARSET=16 }; enum { ESC_START=1, ESC_CSI=2, ESC_OSC=4, ESC_TITLE=8, ESC_ALTCHARSET=16 };
enum { SCREEN_UPDATE, SCREEN_REDRAW };
enum { WIN_VISIBLE=1, WIN_REDRAW=2, WIN_FOCUSED=4 }; enum { WIN_VISIBLE=1, WIN_REDRAW=2, WIN_FOCUSED=4 };
#undef B0 #undef B0
@ -87,21 +90,21 @@ typedef struct {
/* ESC '[' [[ [<priv>] <arg> [;]] <mode>] */ /* ESC '[' [[ [<priv>] <arg> [;]] <mode>] */
typedef struct { typedef struct {
char buf[ESC_BUF_SIZ]; /* raw string */ char buf[ESC_BUF_SIZ]; /* raw string */
int len; /* raw string length */ int len; /* raw string length */
char priv; char priv;
int arg[ESC_ARG_SIZ]; int arg[ESC_ARG_SIZ];
int narg; /* nb of args */ int narg; /* nb of args */
char mode; char mode;
} CSIEscape; } CSIEscape;
/* Internal representation of the screen */ /* Internal representation of the screen */
typedef struct { typedef struct {
int row; /* nb row */ int row; /* nb row */
int col; /* nb col */ int col; /* nb col */
Line* line; /* screen */ Line* line; /* screen */
Line* alt; /* alternate screen */ Line* alt; /* alternate screen */
TCursor c; /* cursor */ TCursor c; /* cursor */
int top; /* top scroll limit */ int top; /* top scroll limit */
int bot; /* bottom scroll limit */ int bot; /* bottom scroll limit */
int mode; /* terminal mode flags */ int mode; /* terminal mode flags */
int esc; /* escape state flags */ int esc; /* escape state flags */
@ -118,17 +121,18 @@ typedef struct {
XIM xim; XIM xim;
XIC xic; XIC xic;
int scr; int scr;
int w; /* window width */ int w; /* window width */
int h; /* window height */ int h; /* window height */
int bufw; /* pixmap width */ int bufw; /* pixmap width */
int bufh; /* pixmap height */ int bufh; /* pixmap height */
int ch; /* char height */ int ch; /* char height */
int cw; /* char width */ int cw; /* char width */
char state; /* focus, redraw, visible */ char state; /* focus, redraw, visible */
} XWindow; } XWindow;
typedef struct { typedef struct {
KeySym k; KeySym k;
unsigned int mask;
char s[ESC_BUF_SIZ]; char s[ESC_BUF_SIZ];
} Key; } Key;
@ -150,15 +154,18 @@ typedef struct {
int mode; int mode;
int bx, by; int bx, by;
int ex, ey; int ex, ey;
struct {int x, y;} b, e; struct {int x, y;} b, e;
char *clip; char *clip;
Atom xtarget; Atom xtarget;
struct timeval tclick1;
struct timeval tclick2;
} Selection; } Selection;
#include "config.h" #include "config.h"
static void die(const char *errstr, ...); static void die(const char *errstr, ...);
static void draw(int); static void draw();
static void drawregion(int, int, int, int);
static void execsh(void); static void execsh(void);
static void sigchld(int); static void sigchld(int);
static void run(void); static void run(void);
@ -206,7 +213,7 @@ static void xresize(int, int);
static void expose(XEvent *); static void expose(XEvent *);
static void visibility(XEvent *); static void visibility(XEvent *);
static void unmap(XEvent *); static void unmap(XEvent *);
static char* kmap(KeySym); static char* kmap(KeySym, unsigned int state);
static void kpress(XEvent *); static void kpress(XEvent *);
static void resize(XEvent *); static void resize(XEvent *);
static void focus(XEvent *); static void focus(XEvent *);
@ -219,7 +226,7 @@ static void selrequest(XEvent *);
static void selinit(void); static void selinit(void);
static inline int selected(int, int); static inline int selected(int, int);
static void selcopy(void); static void selcopy(void);
static void selpaste(void); static void selpaste();
static int utf8decode(char *, long *); static int utf8decode(char *, long *);
static int utf8encode(long *, char *); static int utf8encode(long *, char *);
@ -340,7 +347,7 @@ isfullutf8(char *s, int b) {
else if((*c1&(B7|B6|B5)) == (B7|B6) && b == 1) else if((*c1&(B7|B6|B5)) == (B7|B6) && b == 1)
return 0; return 0;
else if((*c1&(B7|B6|B5|B4)) == (B7|B6|B5) && else if((*c1&(B7|B6|B5|B4)) == (B7|B6|B5) &&
((b == 1) || ((b == 1) ||
((b == 2) && (*c2&(B7|B6)) == B7))) ((b == 2) && (*c2&(B7|B6)) == B7)))
return 0; return 0;
else if((*c1&(B7|B6|B5|B4|B3)) == (B7|B6|B5|B4) && else if((*c1&(B7|B6|B5|B4|B3)) == (B7|B6|B5|B4) &&
@ -362,12 +369,14 @@ utf8size(char *s) {
return 2; return 2;
else if ((c&(B7|B6|B5|B4)) == (B7|B6|B5)) else if ((c&(B7|B6|B5|B4)) == (B7|B6|B5))
return 3; return 3;
else else
return 4; return 4;
} }
void void
selinit(void) { selinit(void) {
sel.tclick1.tv_sec = 0;
sel.tclick1.tv_usec = 0;
sel.mode = 0; sel.mode = 0;
sel.bx = -1; sel.bx = -1;
sel.clip = NULL; sel.clip = NULL;
@ -376,14 +385,14 @@ selinit(void) {
sel.xtarget = XA_STRING; sel.xtarget = XA_STRING;
} }
static inline int static inline int
selected(int x, int y) { selected(int x, int y) {
if(sel.ey == y && sel.by == y) { if(sel.ey == y && sel.by == y) {
int bx = MIN(sel.bx, sel.ex); int bx = MIN(sel.bx, sel.ex);
int ex = MAX(sel.bx, sel.ex); int ex = MAX(sel.bx, sel.ex);
return BETWEEN(x, bx, ex); return BETWEEN(x, bx, ex);
} }
return ((sel.b.y < y&&y < sel.e.y) || (y==sel.e.y && x<=sel.e.x)) return ((sel.b.y < y&&y < sel.e.y) || (y==sel.e.y && x<=sel.e.x))
|| (y==sel.b.y && x>=sel.b.x && (x<=sel.e.x || sel.b.y!=sel.e.y)); || (y==sel.b.y && x>=sel.b.x && (x<=sel.e.x || sel.b.y!=sel.e.y));
} }
@ -511,30 +520,63 @@ xsetsel(char *str) {
XFlush(xw.dpy); XFlush(xw.dpy);
} }
/* TODO: doubleclick to select word */
void void
brelease(XEvent *e) { brelease(XEvent *e) {
int b; int b;
sel.mode = 0; sel.mode = 0;
getbuttoninfo(e, &b, &sel.ex, &sel.ey); getbuttoninfo(e, &b, &sel.ex, &sel.ey);
if(sel.bx==sel.ex && sel.by==sel.ey) {
if(sel.bx == sel.ex && sel.by == sel.ey) {
sel.bx = -1; sel.bx = -1;
if(b==2) if(b == 2)
selpaste(); selpaste();
else if(b == 1) {
/* double click to select word */
struct timeval now;
gettimeofday(&now, NULL);
if(TIMEDIFFERENCE(now, sel.tclick1) <= DOUBLECLICK_TIMEOUT) {
sel.bx = sel.ex;
while(term.line[sel.ey][sel.bx-1].state & GLYPH_SET &&
term.line[sel.ey][sel.bx-1].c[0] != ' ') sel.bx--;
sel.b.x = sel.bx;
while(term.line[sel.ey][sel.ex+1].state & GLYPH_SET &&
term.line[sel.ey][sel.ex+1].c[0] != ' ') sel.ex++;
sel.e.x = sel.ex;
sel.b.y = sel.e.y = sel.ey;
selcopy();
}
/* triple click on the line */
if(TIMEDIFFERENCE(now, sel.tclick2) <= TRIPLECLICK_TIMEOUT) {
sel.b.x = sel.bx = 0;
sel.e.x = sel.ex = term.col;
sel.b.y = sel.e.y = sel.ey;
selcopy();
}
}
} else { } else {
if(b==1) if(b == 1)
selcopy(); selcopy();
} }
draw(1); memcpy(&sel.tclick2, &sel.tclick1, sizeof(struct timeval));
gettimeofday(&sel.tclick1, NULL);
draw();
} }
void void
bmotion(XEvent *e) { bmotion(XEvent *e) {
if (sel.mode) { if(sel.mode) {
int oldey = sel.ey,
oldex = sel.ex;
getbuttoninfo(e, NULL, &sel.ex, &sel.ey); getbuttoninfo(e, NULL, &sel.ex, &sel.ey);
/* XXX: draw() can't keep up, disabled for now.
selection is visible on button release. if(oldey != sel.ey || oldex != sel.ex) {
draw(1); */ int starty = MIN(oldey, sel.ey);
int endy = MAX(oldey, sel.ey);
drawregion(0, (starty > 0 ? starty : 0), term.col, (sel.ey < term.row ? endy+1 : term.row));
}
} }
} }
@ -641,6 +683,10 @@ ttyread(void) {
void void
ttywrite(const char *s, size_t n) { ttywrite(const char *s, size_t n) {
{size_t nn;
for(nn = 0; nn < n; nn++)
dump(s[nn]);
}
if(write(cmdfd, s, n) == -1) if(write(cmdfd, s, n) == -1)
die("write error on tty: %s\n", SERRNO); die("write error on tty: %s\n", SERRNO);
} }
@ -1640,8 +1686,13 @@ xdrawc(int x, int y, Glyph g) {
dc.gc, r.x, r.y+dc.font.ascent, g.c, sl); dc.gc, r.x, r.y+dc.font.ascent, g.c, sl);
} }
void
drawregion(int x0, int x1, int y0, int y1) {
draw();
}
void void
draw(int dummy) { draw() {
int x, y; int x, y;
xclear(0, 0, term.col-1, term.row-1); xclear(0, 0, term.col-1, term.row-1);
@ -1657,8 +1708,13 @@ draw(int dummy) {
#else #else
/* optimized drawing routine */ /* optimized drawing routine */
void
draw() {
drawregion(0, 0, term.col, term.row);
}
void void
draw(int redraw_all) { drawregion(int x1, int y1, int x2, int y2) {
int ic, ib, x, y, ox, sl; int ic, ib, x, y, ox, sl;
Glyph base, new; Glyph base, new;
char buf[DRAW_BUF_SIZ]; char buf[DRAW_BUF_SIZ];
@ -1666,13 +1722,13 @@ draw(int redraw_all) {
if(!(xw.state & WIN_VISIBLE)) if(!(xw.state & WIN_VISIBLE))
return; return;
xclear(0, 0, term.col-1, term.row-1); xclear(x1, y1, x2-1, y2-1);
for(y = 0; y < term.row; y++) { for(y = y1; y < y2; y++) {
base = term.line[y][0]; base = term.line[y][0];
ic = ib = ox = 0; ic = ib = ox = 0;
for(x = 0; x < term.col; x++) { for(x = x1; x < x2; x++) {
new = term.line[y][x]; new = term.line[y][x];
if(sel.bx!=-1 && *(new.c) && selected(x, y)) if(sel.bx != -1 && *(new.c) && selected(x, y))
new.mode ^= ATTR_REVERSE; new.mode ^= ATTR_REVERSE;
if(ib > 0 && (!(new.state & GLYPH_SET) || ATTRCMP(base, new) || if(ib > 0 && (!(new.state & GLYPH_SET) || ATTRCMP(base, new) ||
ib >= DRAW_BUF_SIZ-UTF_SIZ)) { ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
@ -1705,7 +1761,7 @@ expose(XEvent *ev) {
if(xw.state & WIN_REDRAW) { if(xw.state & WIN_REDRAW) {
if(!e->count) { if(!e->count) {
xw.state &= ~WIN_REDRAW; xw.state &= ~WIN_REDRAW;
draw(SCREEN_REDRAW); draw();
} }
} else } else
XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, e->x-BORDER, e->y-BORDER, XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, e->x-BORDER, e->y-BORDER,
@ -1742,14 +1798,14 @@ focus(XEvent *ev) {
xseturgency(0); xseturgency(0);
} else } else
xw.state &= ~WIN_FOCUSED; xw.state &= ~WIN_FOCUSED;
draw(SCREEN_UPDATE); draw();
} }
char* char*
kmap(KeySym k) { kmap(KeySym k, unsigned int state) {
int i; int i;
for(i = 0; i < LEN(key); i++) for(i = 0; i < LEN(key); i++)
if(key[i].k == k) if(key[i].k == k && (key[i].mask == 0 || key[i].mask & state))
return (char*)key[i].s; return (char*)key[i].s;
return NULL; return NULL;
} }
@ -1770,7 +1826,7 @@ kpress(XEvent *ev) {
len = XmbLookupString(xw.xic, e, buf, sizeof(buf), &ksym, &status); len = XmbLookupString(xw.xic, e, buf, sizeof(buf), &ksym, &status);
/* 1. custom keys from config.h */ /* 1. custom keys from config.h */
if((customkey = kmap(ksym))) if((customkey = kmap(ksym, e->state)))
ttywrite(customkey, strlen(customkey)); ttywrite(customkey, strlen(customkey));
/* 2. hardcoded (overrides X lookup) */ /* 2. hardcoded (overrides X lookup) */
else else
@ -1779,7 +1835,7 @@ kpress(XEvent *ev) {
case XK_Down: case XK_Down:
case XK_Left: case XK_Left:
case XK_Right: case XK_Right:
sprintf(buf, "\033%c%c", IS_SET(MODE_APPKEYPAD) ? 'O' : '[', "DACB"[ksym - XK_Left]); sprintf(buf, "\033%c%c", IS_SET(MODE_APPKEYPAD) ? 'O' : '[', (shift ? "dacb":"DACB")[ksym - XK_Left]);
ttywrite(buf, 3); ttywrite(buf, 3);
break; break;
case XK_Insert: case XK_Insert:
@ -1817,7 +1873,7 @@ resize(XEvent *e) {
if(col == term.col && row == term.row) if(col == term.col && row == term.row)
return; return;
if(tresize(col, row)) if(tresize(col, row))
draw(SCREEN_REDRAW); draw();
ttyresize(col, row); ttyresize(col, row);
xresize(col, row); xresize(col, row);
} }
@ -1839,7 +1895,7 @@ run(void) {
} }
if(FD_ISSET(cmdfd, &rfd)) { if(FD_ISSET(cmdfd, &rfd)) {
ttyread(); ttyread();
draw(SCREEN_UPDATE); draw();
} }
while(XPending(xw.dpy)) { while(XPending(xw.dpy)) {
XNextEvent(xw.dpy, &ev); XNextEvent(xw.dpy, &ev);

4
st.info
View file

@ -49,6 +49,10 @@ st| simpleterm,
kcud1=\E[B, kcud1=\E[B,
kcuf1=\E[C, kcuf1=\E[C,
kcuu1=\E[A, kcuu1=\E[A,
kLFT=\E[d,
kRIT=\E[c,
kind=\E[a,
kri=\E[b,
kdch1=\E[3~, kdch1=\E[3~,
kich1=\E[2~, kich1=\E[2~,
kend=\E[4~, kend=\E[4~,