X-Git-Url: https://git.xinqibao.xyz/st.git/blobdiff_plain/b032814e25ddb166b4621262be4b8a1a0a609e37..ee7fd748ac7bfabda2ac37251d230b45adb3e138:/st.c?ds=sidebyside
diff --git a/st.c b/st.c
index c295de6..d169ddf 100644
--- a/st.c
+++ b/st.c
@@ -6,6 +6,7 @@
#include <limits.h>
#include <locale.h>
#include <stdarg.h>
+#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@@ -13,17 +14,17 @@
#include <sys/ioctl.h>
#include <sys/select.h>
#include <sys/stat.h>
+#include <sys/time.h>
#include <sys/types.h>
#include <sys/wait.h>
+#include <time.h>
#include <unistd.h>
#include <X11/Xatom.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/cursorfont.h>
#include <X11/keysym.h>
-
-#include <sys/time.h>
-#include <time.h>
+#include <X11/extensions/Xdbe.h>
#if defined(__linux)
#include <pty.h>
@@ -34,7 +35,7 @@
#endif
#define USAGE \
- "st-" VERSION ", (c) 2010-2011 st engineers\n" \
+ "st " VERSION " (c) 2010-2012 st engineers\n" \
"usage: st [-t title] [-c class] [-w windowid] [-v] [-e command...]\n"
/* XEMBED messages */
@@ -50,6 +51,9 @@
#define XK_NO_MOD UINT_MAX
#define XK_ANY_MOD 0
+#define SELECT_TIMEOUT (20*1000) /* 20 ms */
+#define DRAW_TIMEOUT (20*1000) /* 20 ms */
+
#define SERRNO strerror(errno)
#define MIN(a, b) ((a) < (b) ? (a) : (b))
#define MAX(a, b) ((a) < (b) ? (b) : (a))
@@ -63,26 +67,75 @@
#define X2COL(x) (((x) - BORDER)/xw.cw)
#define Y2ROW(y) (((y) - BORDER)/xw.ch)
-/* 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 { CURSOR_UP, CURSOR_DOWN, CURSOR_LEFT, CURSOR_RIGHT,
- CURSOR_SAVE, CURSOR_LOAD };
-enum { CURSOR_DEFAULT = 0, CURSOR_HIDE = 1, CURSOR_WRAPNEXT = 2 };
-enum { GLYPH_SET=1, GLYPH_DIRTY=2 };
-enum { MODE_WRAP=1, MODE_INSERT=2, MODE_APPKEYPAD=4, MODE_ALTSCREEN=8,
- MODE_CRLF=16, MODE_MOUSEBTN=32, MODE_MOUSEMOTION=64, MODE_MOUSE=32|64, MODE_REVERSE=128 };
-enum { ESC_START=1, ESC_CSI=2, ESC_OSC=4, ESC_TITLE=8, ESC_ALTCHARSET=16 };
-enum { WIN_VISIBLE=1, WIN_REDRAW=2, WIN_FOCUSED=4 };
+enum glyph_attribute {
+ ATTR_NULL = 0,
+ ATTR_REVERSE = 1,
+ ATTR_UNDERLINE = 2,
+ ATTR_BOLD = 4,
+ ATTR_GFX = 8,
+};
+
+enum cursor_movement {
+ CURSOR_UP,
+ CURSOR_DOWN,
+ CURSOR_LEFT,
+ CURSOR_RIGHT,
+ CURSOR_SAVE,
+ CURSOR_LOAD
+};
+
+enum cursor_state {
+ CURSOR_DEFAULT = 0,
+ CURSOR_HIDE = 1,
+ CURSOR_WRAPNEXT = 2
+};
+
+enum glyph_state {
+ GLYPH_SET = 1,
+ GLYPH_DIRTY = 2
+};
+
+enum term_mode {
+ MODE_WRAP = 1,
+ MODE_INSERT = 2,
+ MODE_APPKEYPAD = 4,
+ MODE_ALTSCREEN = 8,
+ MODE_CRLF = 16,
+ MODE_MOUSEBTN = 32,
+ MODE_MOUSEMOTION = 64,
+ MODE_MOUSE = 32|64,
+ MODE_REVERSE = 128
+};
+
+enum escape_state {
+ ESC_START = 1,
+ ESC_CSI = 2,
+ ESC_OSC = 4,
+ ESC_TITLE = 8,
+ ESC_ALTCHARSET = 16
+};
+enum window_state {
+ WIN_VISIBLE = 1,
+ WIN_REDRAW = 2,
+ WIN_FOCUSED = 4
+};
+
+/* bit macro */
#undef B0
enum { B0=1, B1=2, B2=4, B3=8, B4=16, B5=32, B6=64, B7=128 };
+typedef unsigned char uchar;
+typedef unsigned int uint;
+typedef unsigned long ulong;
+typedef unsigned short ushort;
+
typedef struct {
char c[UTF_SIZ]; /* character code */
- char mode; /* attribute flags */
- int fg; /* foreground */
- int bg; /* background */
- char state; /* state flags */
+ uchar mode; /* attribute flags */
+ ushort fg; /* foreground */
+ ushort bg; /* background */
+ uchar state; /* state flags */
} Glyph;
typedef Glyph* Line;
@@ -111,6 +164,7 @@ typedef struct {
int col; /* nb col */
Line* line; /* screen */
Line* alt; /* alternate screen */
+ bool* dirty; /* dirtyness of lines */
TCursor c; /* cursor */
int top; /* top scroll limit */
int bot; /* bottom scroll limit */
@@ -118,6 +172,7 @@ typedef struct {
int esc; /* escape state flags */
char title[ESC_TITLE_SIZ];
int titlelen;
+ bool *tabs;
} Term;
/* Purely graphic info */
@@ -125,38 +180,25 @@ typedef struct {
Display* dpy;
Colormap cmap;
Window win;
- Pixmap buf;
+ XdbeBackBuffer buf;
Atom xembed;
XIM xim;
XIC xic;
int scr;
int w; /* window width */
int h; /* window height */
- int bufw; /* pixmap width */
- int bufh; /* pixmap height */
int ch; /* char height */
int cw; /* char width */
char state; /* focus, redraw, visible */
+ struct timeval lastdraw;
} XWindow;
typedef struct {
KeySym k;
- unsigned int mask;
+ uint mask;
char s[ESC_BUF_SIZ];
} Key;
-/* Drawing Context */
-typedef struct {
- unsigned long col[256];
- GC gc;
- struct {
- int ascent;
- int descent;
- short lbearing;
- short rbearing;
- XFontSet set;
- } font, bfont;
-} DC;
/* TODO: use better name for vars... */
typedef struct {
@@ -172,12 +214,26 @@ typedef struct {
#include "config.h"
+/* Drawing Context */
+typedef struct {
+ ulong col[LEN(colorname) < 256 ? 256 : LEN(colorname)];
+ GC gc;
+ struct {
+ int ascent;
+ int descent;
+ short lbearing;
+ short rbearing;
+ XFontSet set;
+ } font, bfont;
+} DC;
+
static void die(const char*, ...);
static void draw(void);
static void drawregion(int, int, int, int);
static void execsh(void);
static void sigchld(int);
static void run(void);
+static bool last_draw_too_old(void);
static void csidump(void);
static void csihandle(void);
@@ -203,6 +259,8 @@ static void tsetattr(int*, int);
static void tsetchar(char*);
static void tsetscroll(int, int);
static void tswapscreen(void);
+static void tsetdirt(int, int);
+static void tfulldirt(void);
static void ttynew(void);
static void ttyread(void);
@@ -212,6 +270,7 @@ static void ttywrite(const char *, size_t);
static void xdraws(char *, Glyph, int, int, int, int);
static void xhints(void);
static void xclear(int, int, int, int);
+static void xcopy();
static void xdrawcursor(void);
static void xinit(void);
static void xloadcols(void);
@@ -222,7 +281,7 @@ static void xresize(int, int);
static void expose(XEvent *);
static void visibility(XEvent *);
static void unmap(XEvent *);
-static char* kmap(KeySym, unsigned int state);
+static char* kmap(KeySym, uint);
static void kpress(XEvent *);
static void cmessage(XEvent *);
static void resize(XEvent *);
@@ -234,9 +293,10 @@ static void selnotify(XEvent *);
static void selrequest(XEvent *);
static void selinit(void);
-static inline int selected(int, int);
+static inline bool 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 *);
@@ -274,31 +334,31 @@ static char *opt_class = NULL;
int
utf8decode(char *s, long *u) {
- unsigned char c;
+ uchar c;
int i, n, rtn;
rtn = 1;
c = *s;
- if(~c&B7) { /* 0xxxxxxx */
+ if(~c & B7) { /* 0xxxxxxx */
*u = c;
return rtn;
- } else if((c&(B7|B6|B5)) == (B7|B6)) { /* 110xxxxx */
+ } else if((c & (B7|B6|B5)) == (B7|B6)) { /* 110xxxxx */
*u = c&(B4|B3|B2|B1|B0);
n = 1;
- } else if((c&(B7|B6|B5|B4)) == (B7|B6|B5)) { /* 1110xxxx */
+ } else if((c & (B7|B6|B5|B4)) == (B7|B6|B5)) { /* 1110xxxx */
*u = c&(B3|B2|B1|B0);
n = 2;
- } else if((c&(B7|B6|B5|B4|B3)) == (B7|B6|B5|B4)) { /* 11110xxx */
- *u = c&(B2|B1|B0);
+ } else if((c & (B7|B6|B5|B4|B3)) == (B7|B6|B5|B4)) { /* 11110xxx */
+ *u = c & (B2|B1|B0);
n = 3;
} else
goto invalid;
- for(i=n,++s; i>0; --i,++rtn,++s) {
+ for(i = n, ++s; i > 0; --i, ++rtn, ++s) {
c = *s;
- if((c&(B7|B6)) != B7) /* 10xxxxxx */
+ if((c & (B7|B6)) != B7) /* 10xxxxxx */
goto invalid;
*u <<= 6;
- *u |= c&(B5|B4|B3|B2|B1|B0);
+ *u |= c & (B5|B4|B3|B2|B1|B0);
}
if((n == 1 && *u < 0x80) ||
(n == 2 && *u < 0x800) ||
@@ -313,11 +373,11 @@ invalid:
int
utf8encode(long *u, char *s) {
- unsigned char *sp;
- unsigned long uc;
+ uchar *sp;
+ ulong uc;
int i, n;
- sp = (unsigned char*) s;
+ sp = (uchar*) s;
uc = *u;
if(uc < 0x80) {
*sp = uc; /* 0xxxxxxx */
@@ -349,11 +409,11 @@ invalid:
UTF-8 otherwise return 0 */
int
isfullutf8(char *s, int b) {
- unsigned char *c1, *c2, *c3;
+ uchar *c1, *c2, *c3;
- c1 = (unsigned char *) s;
- c2 = (unsigned char *) ++s;
- c3 = (unsigned char *) ++s;
+ c1 = (uchar *) s;
+ c2 = (uchar *) ++s;
+ c3 = (uchar *) ++s;
if(b < 1)
return 0;
else if((*c1&(B7|B6|B5)) == (B7|B6) && b == 1)
@@ -373,7 +433,7 @@ isfullutf8(char *s, int b) {
int
utf8size(char *s) {
- unsigned char c = *s;
+ uchar c = *s;
if(~c&B7)
return 1;
@@ -387,8 +447,8 @@ utf8size(char *s) {
void
selinit(void) {
- sel.tclick1.tv_sec = 0;
- sel.tclick1.tv_usec = 0;
+ memset(&sel.tclick1, 0, sizeof(sel.tclick1));
+ memset(&sel.tclick2, 0, sizeof(sel.tclick2));
sel.mode = 0;
sel.bx = -1;
sel.clip = NULL;
@@ -397,7 +457,7 @@ selinit(void) {
sel.xtarget = XA_STRING;
}
-static inline int
+static inline bool
selected(int x, int y) {
if(sel.ey == y && sel.by == y) {
int bx = MIN(sel.bx, sel.ex);
@@ -460,6 +520,8 @@ bpress(XEvent *e) {
if(IS_SET(MODE_MOUSE))
mousereport(e);
else if(e->xbutton.button == Button1) {
+ if(sel.bx != -1)
+ tsetdirt(sel.b.y, sel.e.y);
sel.mode = 1;
sel.ex = sel.bx = X2COL(e->xbutton.x);
sel.ey = sel.by = Y2ROW(e->xbutton.y);
@@ -469,21 +531,28 @@ bpress(XEvent *e) {
void
selcopy(void) {
char *str, *ptr;
- int x, y, sz, sl, ls = 0;
+ int x, y, bufsize, is_selected = 0;
if(sel.bx == -1)
str = NULL;
+
else {
- sz = (term.col+1) * (sel.e.y-sel.b.y+1) * UTF_SIZ;
- ptr = str = malloc(sz);
+ bufsize = (term.col+1) * (sel.e.y-sel.b.y+1) * UTF_SIZ;
+ ptr = str = malloc(bufsize);
+
+ /* append every set & selected glyph to the selection */
for(y = 0; y < term.row; y++) {
- for(x = 0; x < term.col; x++)
- if(term.line[y][x].state & GLYPH_SET && (ls = selected(x, y))) {
- sl = utf8size(term.line[y][x].c);
- memcpy(ptr, term.line[y][x].c, sl);
- ptr += sl;
+ for(x = 0; x < term.col; x++) {
+ is_selected = selected(x, y);
+ if((term.line[y][x].state & GLYPH_SET) && is_selected) {
+ int size = utf8size(term.line[y][x].c);
+ memcpy(ptr, term.line[y][x].c, size);
+ ptr += size;
}
- if(ls && y < sel.e.y)
+ }
+
+ /* \n at the end of every selected line except for the last one */
+ if(is_selected && y < sel.e.y)
*ptr++ = '\n';
}
*ptr = 0;
@@ -493,9 +562,9 @@ selcopy(void) {
void
selnotify(XEvent *e) {
- unsigned long nitems, ofs, rem;
+ ulong nitems, ofs, rem;
int format;
- unsigned char *data;
+ uchar *data;
Atom type;
ofs = 0;
@@ -539,12 +608,12 @@ selrequest(XEvent *e) {
Atom string = sel.xtarget;
XChangeProperty(xsre->display, xsre->requestor, xsre->property,
XA_ATOM, 32, PropModeReplace,
- (unsigned char *) &string, 1);
+ (uchar *) &string, 1);
xev.property = xsre->property;
- } else if(xsre->target == sel.xtarget) {
+ } else if(xsre->target == sel.xtarget && sel.clip != NULL) {
XChangeProperty(xsre->display, xsre->requestor, xsre->property,
xsre->target, 8, PropModeReplace,
- (unsigned char *) sel.clip, strlen(sel.clip));
+ (uchar *) sel.clip, strlen(sel.clip));
xev.property = xsre->property;
}
@@ -580,6 +649,7 @@ brelease(XEvent *e) {
else if(e->xbutton.button == Button1) {
sel.mode = 0;
getbuttoninfo(e, NULL, &sel.ex, &sel.ey);
+ term.dirty[sel.ey] = 1;
if(sel.bx == sel.ex && sel.by == sel.ey) {
struct timeval now;
sel.bx = -1;
@@ -624,7 +694,8 @@ bmotion(XEvent *e) {
if(oldey != sel.ey || oldex != sel.ex) {
int starty = MIN(oldey, sel.ey);
int endy = MAX(oldey, sel.ey);
- drawregion(0, (starty > 0 ? starty : 0), term.col, (endy < term.row ? endy+1 : term.row));
+ tsetdirt(starty, endy);
+ draw();
}
}
}
@@ -644,7 +715,7 @@ execsh(void) {
char **args;
char *envshell = getenv("SHELL");
- DEFAULT(envshell, "sh");
+ DEFAULT(envshell, SHELL);
putenv("TERM="TNAME);
args = opt_cmd ? opt_cmd : (char*[]){envshell, "-i", NULL};
execvp(args[0], args);
@@ -747,6 +818,24 @@ ttyresize(int x, int y) {
fprintf(stderr, "Couldn't set window size: %s\n", SERRNO);
}
+void
+tsetdirt(int top, int bot)
+{
+ int i;
+
+ LIMIT(top, 0, term.row-1);
+ LIMIT(bot, 0, term.row-1);
+
+ for(i = top; i <= bot; i++)
+ term.dirty[i] = 1;
+}
+
+void
+tfulldirt(void)
+{
+ tsetdirt(0, term.row-1);
+}
+
void
tcursor(int mode) {
static TCursor c;
@@ -759,12 +848,16 @@ tcursor(int mode) {
void
treset(void) {
+ unsigned i;
term.c = (TCursor){{
.mode = ATTR_NULL,
.fg = DefaultFG,
.bg = DefaultBG
}, .x = 0, .y = 0, .state = CURSOR_DEFAULT};
-
+
+ memset(term.tabs, 0, term.col * sizeof(*term.tabs));
+ for (i = TAB; i < term.col; i += TAB)
+ term.tabs[i] = 1;
term.top = 0, term.bot = term.row - 1;
term.mode = MODE_WRAP;
tclearregion(0, 0, term.col-1, term.row-1);
@@ -776,10 +869,15 @@ tnew(int col, int row) {
term.row = row, term.col = col;
term.line = malloc(term.row * sizeof(Line));
term.alt = malloc(term.row * sizeof(Line));
+ term.dirty = malloc(term.row * sizeof(*term.dirty));
+ term.tabs = malloc(term.col * sizeof(*term.tabs));
+
for(row = 0; row < term.row; row++) {
term.line[row] = malloc(term.col * sizeof(Glyph));
term.alt [row] = malloc(term.col * sizeof(Glyph));
+ term.dirty[row] = 0;
}
+ memset(term.tabs, 0, term.col * sizeof(*term.tabs));
/* setup screen */
treset();
}
@@ -790,6 +888,7 @@ tswapscreen(void) {
term.line = term.alt;
term.alt = tmp;
term.mode ^= MODE_ALTSCREEN;
+ tfulldirt();
}
void
@@ -805,7 +904,12 @@ tscrolldown(int orig, int n) {
temp = term.line[i];
term.line[i] = term.line[i-n];
term.line[i-n] = temp;
+
+ term.dirty[i] = 1;
+ term.dirty[i-n] = 1;
}
+
+ selscroll(orig, n);
}
void
@@ -820,6 +924,34 @@ tscrollup(int orig, int n) {
temp = term.line[i];
term.line[i] = term.line[i+n];
term.line[i+n] = temp;
+
+ term.dirty[i] = 1;
+ term.dirty[i+n] = 1;
+ }
+
+ 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;
}
}
@@ -868,6 +1000,7 @@ tmoveto(int x, int y) {
void
tsetchar(char *c) {
+ term.dirty[term.c.y] = 1;
term.line[term.c.y][term.c.x] = term.c.attr;
memcpy(term.line[term.c.y][term.c.x].c, c, UTF_SIZ);
term.line[term.c.y][term.c.x].state |= GLYPH_SET;
@@ -887,9 +1020,11 @@ tclearregion(int x1, int y1, int x2, int y2) {
LIMIT(y1, 0, term.row-1);
LIMIT(y2, 0, term.row-1);
- for(y = y1; y <= y2; y++)
+ for(y = y1; y <= y2; y++) {
+ term.dirty[y] = 1;
for(x = x1; x <= x2; x++)
term.line[y][x].state = 0;
+ }
}
void
@@ -897,6 +1032,8 @@ tdeletechar(int n) {
int src = term.c.x + n;
int dst = term.c.x;
int size = term.col - src;
+
+ term.dirty[term.c.y] = 1;
if(src >= term.col) {
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
@@ -912,6 +1049,8 @@ tinsertblank(int n) {
int dst = src + n;
int size = term.col - dst;
+ term.dirty[term.c.y] = 1;
+
if(dst >= term.col) {
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
return;
@@ -1077,6 +1216,7 @@ 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);
@@ -1270,12 +1410,15 @@ csihandle(void) {
void
csidump(void) {
int i;
- printf("ESC [ %s", escseq.priv ? "? " : "");
- if(escseq.narg)
- for(i = 0; i < escseq.narg; i++)
- printf("%d ", escseq.arg[i]);
- if(escseq.mode)
- putchar(escseq.mode);
+ printf("ESC[");
+ for(i = 0; i < escseq.len; i++) {
+ uint c = escseq.buf[i] & 0xff;
+ if(isprint(c)) putchar(c);
+ else if(c == '\n') printf("(\\n)");
+ else if(c == '\r') printf("(\\r)");
+ else if(c == 0x1b) printf("(\\e)");
+ else printf("(%02x)", c);
+ }
putchar('\n');
}
@@ -1377,11 +1520,13 @@ tputc(char *c) {
break;
default:
fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
- (unsigned char) ascii, isprint(ascii)?ascii:'.');
+ (uchar) ascii, isprint(ascii)?ascii:'.');
term.esc = 0;
}
}
} else {
+ if(sel.bx != -1 && BETWEEN(term.c.y, sel.by, sel.ey))
+ sel.bx = -1;
switch(ascii) {
case '\t':
tputtab();
@@ -1449,9 +1594,12 @@ tresize(int col, int row) {
/* resize to new height */
term.line = realloc(term.line, row * sizeof(Line));
term.alt = realloc(term.alt, row * sizeof(Line));
+ term.dirty = realloc(term.dirty, row * sizeof(*term.dirty));
+ term.tabs = realloc(term.tabs, col * sizeof(*term.tabs));
/* resize each row to new width, zero-pad if needed */
for(i = 0; i < minrow; i++) {
+ term.dirty[i] = 1;
term.line[i] = realloc(term.line[i], col * sizeof(Glyph));
term.alt[i] = realloc(term.alt[i], col * sizeof(Glyph));
for(x = mincol; x < col; x++) {
@@ -1462,65 +1610,54 @@ tresize(int col, int row) {
/* allocate any new rows */
for(/* i == minrow */; i < row; i++) {
+ term.dirty[i] = 1;
term.line[i] = calloc(col, sizeof(Glyph));
term.alt [i] = calloc(col, sizeof(Glyph));
}
-
+ if (col > term.col) {
+ bool *bp = term.tabs + term.col;
+
+ memset(bp, 0, sizeof(*term.tabs) * (col - term.col));
+ while (--bp > term.tabs && !*bp)
+ /* nothing */ ;
+ for (bp += TAB; bp < term.tabs + col; bp += TAB)
+ *bp = 1;
+ }
/* update terminal size */
term.col = col, term.row = row;
/* make use of the LIMIT in tmoveto */
tmoveto(term.c.x, term.c.y);
/* reset scrolling region */
tsetscroll(0, row-1);
+
return (slide > 0);
}
void
xresize(int col, int row) {
- Pixmap newbuf;
- int oldw, oldh;
-
- oldw = xw.bufw;
- oldh = xw.bufh;
- xw.bufw = MAX(1, col * xw.cw);
- xw.bufh = MAX(1, row * xw.ch);
- newbuf = XCreatePixmap(xw.dpy, xw.win, xw.bufw, xw.bufh, XDefaultDepth(xw.dpy, xw.scr));
- XCopyArea(xw.dpy, xw.buf, newbuf, dc.gc, 0, 0, xw.bufw, xw.bufh, 0, 0);
- XFreePixmap(xw.dpy, xw.buf);
- XSetForeground(xw.dpy, dc.gc, dc.col[DefaultBG]);
- if(xw.bufw > oldw)
- XFillRectangle(xw.dpy, newbuf, dc.gc, oldw, 0,
- xw.bufw-oldw, MIN(xw.bufh, oldh));
- else if(xw.bufw < oldw && (BORDER > 0 || xw.w > xw.bufw))
- XClearArea(xw.dpy, xw.win, BORDER+xw.bufw, BORDER,
- xw.w-xw.bufh-BORDER, BORDER+MIN(xw.bufh, oldh),
- False);
- if(xw.bufh > oldh)
- XFillRectangle(xw.dpy, newbuf, dc.gc, 0, oldh,
- xw.bufw, xw.bufh-oldh);
- else if(xw.bufh < oldh && (BORDER > 0 || xw.h > xw.bufh))
- XClearArea(xw.dpy, xw.win, BORDER, BORDER+xw.bufh,
- xw.w-2*BORDER, xw.h-xw.bufh-BORDER,
- False);
- xw.buf = newbuf;
+ xw.w = MAX(1, 2*BORDER + col * xw.cw);
+ xw.h = MAX(1, 2*BORDER + row * xw.ch);
}
void
xloadcols(void) {
int i, r, g, b;
XColor color;
- unsigned long white = WhitePixel(xw.dpy, xw.scr);
+ ulong white = WhitePixel(xw.dpy, xw.scr);
- for(i = 0; i < 16; i++) {
+ /* load colors [0-15] colors and [256-LEN(colorname)[ (config.h) */
+ for(i = 0; i < LEN(colorname); i++) {
+ if(!colorname[i])
+ continue;
if(!XAllocNamedColor(xw.dpy, xw.cmap, colorname[i], &color, &color)) {
dc.col[i] = white;
fprintf(stderr, "Could not allocate color '%s'\n", colorname[i]);
} else
dc.col[i] = color.pixel;
}
-
- /* same colors as xterm */
- for(r = 0; r < 6; r++)
+
+ /* load colors [16-255] ; same colors as xterm */
+ for(i = 16, r = 0; r < 6; r++)
for(g = 0; g < 6; g++)
for(b = 0; b < 6; b++) {
color.red = r == 0 ? 0 : 0x3737 + 0x2828 * r;
@@ -1548,7 +1685,7 @@ void
xclear(int x1, int y1, int x2, int y2) {
XSetForeground(xw.dpy, dc.gc, dc.col[IS_SET(MODE_REVERSE) ? DefaultFG : DefaultBG]);
XFillRectangle(xw.dpy, xw.buf, dc.gc,
- x1 * xw.cw, y1 * xw.ch,
+ BORDER + x1 * xw.cw, BORDER + y1 * xw.ch,
(x2-x1+1) * xw.cw, (y2-y1+1) * xw.ch);
}
@@ -1634,10 +1771,8 @@ xinit(void) {
xloadcols();
/* window - default size */
- xw.bufh = term.row * xw.ch;
- xw.bufw = term.col * xw.cw;
- xw.h = xw.bufh + 2*BORDER;
- xw.w = xw.bufw + 2*BORDER;
+ xw.h = 2*BORDER + term.row * xw.ch;
+ xw.w = 2*BORDER + term.col * xw.cw;
attrs.background_pixel = dc.col[DefaultBG];
attrs.border_pixel = dc.col[DefaultBG];
@@ -1655,7 +1790,7 @@ xinit(void) {
CWBackPixel | CWBorderPixel | CWBitGravity | CWEventMask
| CWColormap,
&attrs);
- xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.bufw, xw.bufh, XDefaultDepth(xw.dpy, xw.scr));
+ xw.buf = XdbeAllocateBackBufferName(xw.dpy, xw.win, XdbeCopied);
/* input methods */
@@ -1683,27 +1818,33 @@ xinit(void) {
void
xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
- unsigned long xfg = dc.col[base.fg], xbg = dc.col[base.bg], temp;
- int winx = x*xw.cw, winy = y*xw.ch + dc.font.ascent, width = charlen*xw.cw;
+ int fg = base.fg, bg = base.bg, temp;
+ int winx = BORDER+x*xw.cw, winy = BORDER+y*xw.ch + dc.font.ascent, width = charlen*xw.cw;
+ XFontSet fontset = dc.font.set;
int i;
/* only switch default fg/bg if term is in RV mode */
if(IS_SET(MODE_REVERSE)) {
- if(base.fg == DefaultFG)
- xfg = dc.col[DefaultBG];
- if(base.bg == DefaultBG)
- xbg = dc.col[DefaultFG];
+ if(fg == DefaultFG)
+ fg = DefaultBG;
+ if(bg == DefaultBG)
+ bg = DefaultFG;
}
if(base.mode & ATTR_REVERSE)
- temp = xfg, xfg = xbg, xbg = temp;
+ temp = fg, fg = bg, bg = temp;
- XSetBackground(xw.dpy, dc.gc, xbg);
- XSetForeground(xw.dpy, dc.gc, xfg);
+ if(base.mode & ATTR_BOLD) {
+ fg += 8;
+ fontset = dc.bfont.set;
+ }
+
+ XSetBackground(xw.dpy, dc.gc, dc.col[bg]);
+ XSetForeground(xw.dpy, dc.gc, dc.col[fg]);
if(base.mode & ATTR_GFX) {
for(i = 0; i < bytelen; i++) {
- char c = gfx[(unsigned int)s[i] % 256];
+ char c = gfx[(uint)s[i] % 256];
if(c)
s[i] = c;
else if(s[i] > 0x5f)
@@ -1711,13 +1852,20 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
}
}
- XmbDrawImageString(xw.dpy, xw.buf, base.mode & ATTR_BOLD ? dc.bfont.set : dc.font.set,
- dc.gc, winx, winy, s, bytelen);
+ XmbDrawImageString(xw.dpy, xw.buf, fontset, dc.gc, winx, winy, s, bytelen);
if(base.mode & ATTR_UNDERLINE)
XDrawLine(xw.dpy, xw.buf, dc.gc, winx, winy+1, winx+width-1, winy+1);
}
+/* copy buffer pixmap to screen pixmap */
+void
+xcopy() {
+ XdbeSwapInfo swpinfo[1] = {{xw.win, XdbeCopied}};
+ XdbeSwapBuffers(xw.dpy, swpinfo, 1);
+
+}
+
void
xdrawcursor(void) {
static int oldx = 0;
@@ -1737,20 +1885,30 @@ xdrawcursor(void) {
xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx, oldy, 1, sl);
} else
xclear(oldx, oldy, oldx, oldy);
-
+
+ xcopy(oldx, oldy, 1, 1);
+
/* draw the new one */
- if(!(term.c.state & CURSOR_HIDE) && (xw.state & WIN_FOCUSED)) {
- sl = utf8size(g.c);
+ if(!(term.c.state & CURSOR_HIDE)) {
+ if(!(xw.state & WIN_FOCUSED))
+ g.bg = DefaultUCS;
+
if(IS_SET(MODE_REVERSE))
g.mode |= ATTR_REVERSE, g.fg = DefaultCS, g.bg = DefaultFG;
+
+ sl = utf8size(g.c);
xdraws(g.c, g, term.c.x, term.c.y, 1, sl);
oldx = term.c.x, oldy = term.c.y;
}
+
+ xcopy(term.c.x, term.c.y, 1, 1);
}
void
draw() {
drawregion(0, 0, term.col, term.row);
+ xcopy();
+ gettimeofday(&xw.lastdraw, NULL);
}
void
@@ -1762,8 +1920,11 @@ drawregion(int x1, int y1, int x2, int y2) {
if(!(xw.state & WIN_VISIBLE))
return;
- xclear(x1, y1, x2-1, y2-1);
for(y = y1; y < y2; y++) {
+ if(!term.dirty[y])
+ continue;
+ xclear(0, y, term.col, y);
+ term.dirty[y] = 0;
base = term.line[y][0];
ic = ib = ox = 0;
for(x = x1; x < x2; x++) {
@@ -1771,7 +1932,7 @@ drawregion(int x1, int y1, int x2, int y2) {
if(sel.bx != -1 && *(new.c) && selected(x, y))
new.mode ^= ATTR_REVERSE;
if(ib > 0 && (!(new.state & GLYPH_SET) || ATTRCMP(base, new) ||
- ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
+ ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
xdraws(buf, base, ox, y, ic, ib);
ic = ib = 0;
}
@@ -1790,20 +1951,16 @@ drawregion(int x1, int y1, int x2, int y2) {
xdraws(buf, base, ox, y, ic, ib);
}
xdrawcursor();
- XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, xw.bufw, xw.bufh, BORDER, BORDER);
}
void
expose(XEvent *ev) {
XExposeEvent *e = &ev->xexpose;
if(xw.state & WIN_REDRAW) {
- if(!e->count) {
+ if(!e->count)
xw.state &= ~WIN_REDRAW;
- draw();
- }
- } else
- XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, e->x-BORDER, e->y-BORDER,
- e->width, e->height, e->x, e->y);
+ }
+ xcopy();
}
void
@@ -1840,11 +1997,11 @@ focus(XEvent *ev) {
}
char*
-kmap(KeySym k, unsigned int state) {
+kmap(KeySym k, uint state) {
int i;
state &= ~Mod2Mask;
for(i = 0; i < LEN(key); i++) {
- unsigned int mask = key[i].mask;
+ uint mask = key[i].mask;
if(key[i].k == k && ((state & mask) == mask || (mask == XK_NO_MOD && !state)))
return (char*)key[i].s;
}
@@ -1935,25 +2092,42 @@ resize(XEvent *e) {
xresize(col, row);
}
+bool
+last_draw_too_old(void) {
+ struct timeval now;
+ gettimeofday(&now, NULL);
+ return TIMEDIFF(now, xw.lastdraw) >= DRAW_TIMEOUT/1000;
+}
+
void
run(void) {
XEvent ev;
fd_set rfd;
int xfd = XConnectionNumber(xw.dpy);
-
+ struct timeval timeout = {0};
+ bool stuff_to_print = 0;
+
for(;;) {
FD_ZERO(&rfd);
FD_SET(cmdfd, &rfd);
FD_SET(xfd, &rfd);
- if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, NULL) < 0) {
+ timeout.tv_sec = 0;
+ timeout.tv_usec = SELECT_TIMEOUT;
+ if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, &timeout) < 0) {
if(errno == EINTR)
continue;
die("select failed: %s\n", SERRNO);
}
if(FD_ISSET(cmdfd, &rfd)) {
ttyread();
+ stuff_to_print = 1;
+ }
+
+ if(stuff_to_print && last_draw_too_old()) {
+ stuff_to_print = 0;
draw();
}
+
while(XPending(xw.dpy)) {
XNextEvent(xw.dpy, &ev);
if(XFilterEvent(&ev, xw.win))
@@ -1979,7 +2153,7 @@ main(int argc, char *argv[]) {
case 'w':
if(++i < argc) opt_embed = argv[i];
break;
- case 'e':
+ case 'e':
/* eat every remaining arguments */
if(++i < argc) opt_cmd = &argv[i];
goto run;