X-Git-Url: https://jasonwoof.com/gitweb/?a=blobdiff_plain;f=st.c;h=d7ca87516155edc8977cf5fafadc2fc9ed3de13a;hb=85849ce72aa4e9cee307a031b97777e9eba2d453;hp=11867b733f3b55e2d38f5c942e0f1905b9ef1581;hpb=6e88c7f60206275a5378521ef5d3dd96b0b09f36;p=st.git diff --git a/st.c b/st.c index 11867b7..d7ca875 100644 --- a/st.c +++ b/st.c @@ -53,8 +53,6 @@ #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 REDRAW_TIMEOUT (80*1000) /* 80 ms */ #define SERRNO strerror(errno) @@ -76,6 +74,8 @@ enum glyph_attribute { ATTR_UNDERLINE = 2, ATTR_BOLD = 4, ATTR_GFX = 8, + ATTR_ITALIC = 16, + ATTR_BLINK = 32, }; enum cursor_movement { @@ -203,7 +203,6 @@ typedef struct { int ch; /* char height */ int cw; /* char width */ char state; /* focus, redraw, visible */ - struct timeval lastdraw; } XWindow; typedef struct { @@ -238,7 +237,7 @@ typedef struct { short lbearing; short rbearing; XFontSet set; - } font, bfont; + } font, bfont, ifont, ibfont; } DC; static void die(const char*, ...); @@ -248,7 +247,6 @@ 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); @@ -290,10 +288,11 @@ 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 xcopy(void); static void xdrawcursor(void); static void xinit(void); static void xloadcols(void); +static void xresettitle(void); static void xseturgency(int); static void xsetsel(char*); static void xresize(int, int); @@ -310,12 +309,13 @@ static void brelease(XEvent *); static void bpress(XEvent *); static void bmotion(XEvent *); static void selnotify(XEvent *); +static void selclear(XEvent *); static void selrequest(XEvent *); static void selinit(void); static inline bool selected(int, int); static void selcopy(void); -static void selpaste(); +static void selpaste(void); static void selscroll(int, int); static int utf8decode(char *, long *); @@ -323,6 +323,9 @@ static int utf8encode(long *, char *); static int utf8size(char *); static int isfullutf8(char *, int); +static void *xmalloc(size_t); +static void *xrealloc(void *, size_t); + static void (*handler[LASTEvent])(XEvent *) = { [KeyPress] = kpress, [ClientMessage] = cmessage, @@ -335,6 +338,7 @@ static void (*handler[LASTEvent])(XEvent *) = { [MotionNotify] = bmotion, [ButtonPress] = bpress, [ButtonRelease] = brelease, + [SelectionClear] = selclear, [SelectionNotify] = selnotify, [SelectionRequest] = selrequest, }; @@ -348,13 +352,28 @@ static STREscape strescseq; static int cmdfd; static pid_t pid; static Selection sel; -static FILE *fileio; +static int iofd = -1; static char **opt_cmd = NULL; static char *opt_io = NULL; static char *opt_title = NULL; static char *opt_embed = NULL; static char *opt_class = NULL; +void * +xmalloc(size_t len) { + void *p = malloc(len); + if(!p) + die("Out of memory"); + return p; +} + +void * +xrealloc(void *p, size_t len) { + if((p = realloc(p, len)) == NULL) + die("Out of memory"); + return p; +} + int utf8decode(char *s, long *u) { uchar c; @@ -561,7 +580,7 @@ selcopy(void) { else { bufsize = (term.col+1) * (sel.e.y-sel.b.y+1) * UTF_SIZ; - ptr = str = malloc(bufsize); + ptr = str = xmalloc(bufsize); /* append every set & selected glyph to the selection */ for(y = 0; y < term.row; y++) { @@ -611,6 +630,14 @@ selpaste() { XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY, xw.win, CurrentTime); } +void selclear(XEvent *e) { + if(sel.bx == -1) + return; + sel.bx = -1; + tsetdirt(sel.b.y, sel.e.y); + draw(); +} + void selrequest(XEvent *e) { XSelectionRequestEvent *xsre; @@ -739,6 +766,17 @@ execsh(void) { char **args; char *envshell = getenv("SHELL"); + unsetenv("COLUMNS"); + unsetenv("LINES"); + unsetenv("TERMCAP"); + + signal(SIGCHLD, SIG_DFL); + signal(SIGHUP, SIG_DFL); + signal(SIGINT, SIG_DFL); + signal(SIGQUIT, SIG_DFL); + signal(SIGTERM, SIG_DFL); + signal(SIGALRM, SIG_DFL); + DEFAULT(envshell, SHELL); putenv("TERM="TNAME); args = opt_cmd ? opt_cmd : (char*[]){envshell, "-i", NULL}; @@ -785,9 +823,15 @@ ttynew(void) { close(s); cmdfd = m; signal(SIGCHLD, sigchld); - if(opt_io && !(fileio = fopen(opt_io, "w"))) { - fprintf(stderr, "Error opening %s:%s\n", - opt_io, strerror(errno)); + if(opt_io) { + if(!strcmp(opt_io, "-")) { + iofd = STDOUT_FILENO; + } else { + if((iofd = open(opt_io, O_WRONLY | O_CREAT, 0666)) < 0) { + fprintf(stderr, "Error opening %s:%s\n", + opt_io, strerror(errno)); + } + } } } } @@ -841,7 +885,8 @@ ttyresize(int x, int y) { w.ws_row = term.row; w.ws_col = term.col; - w.ws_xpixel = w.ws_ypixel = 0; + w.ws_xpixel = xw.w; + w.ws_ypixel = xw.h; if(ioctl(cmdfd, TIOCSWINSZ, &w) < 0) fprintf(stderr, "Couldn't set window size: %s\n", SERRNO); } @@ -895,14 +940,14 @@ void tnew(int col, int row) { /* set screen size */ 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)); + term.line = xmalloc(term.row * sizeof(Line)); + term.alt = xmalloc(term.row * sizeof(Line)); + term.dirty = xmalloc(term.row * sizeof(*term.dirty)); + term.tabs = xmalloc(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.line[row] = xmalloc(term.col * sizeof(Glyph)); + term.alt [row] = xmalloc(term.col * sizeof(Glyph)); term.dirty[row] = 0; } memset(term.tabs, 0, term.col * sizeof(*term.tabs)); @@ -1110,31 +1155,39 @@ tsetattr(int *attr, int l) { for(i = 0; i < l; i++) { switch(attr[i]) { case 0: - term.c.attr.mode &= ~(ATTR_REVERSE | ATTR_UNDERLINE | ATTR_BOLD); + term.c.attr.mode &= ~(ATTR_REVERSE | ATTR_UNDERLINE | ATTR_BOLD \ + | ATTR_ITALIC | ATTR_BLINK); term.c.attr.fg = DefaultFG; term.c.attr.bg = DefaultBG; break; case 1: term.c.attr.mode |= ATTR_BOLD; break; - case 3: /* enter standout (highlight) mode TODO: make it italic */ - term.c.attr.mode |= ATTR_REVERSE; + case 3: /* enter standout (highlight) */ + term.c.attr.mode |= ATTR_ITALIC; break; case 4: term.c.attr.mode |= ATTR_UNDERLINE; break; + case 5: + term.c.attr.mode |= ATTR_BLINK; + break; case 7: term.c.attr.mode |= ATTR_REVERSE; break; + case 21: case 22: term.c.attr.mode &= ~ATTR_BOLD; break; - case 23: /* leave standout (highlight) mode TODO: make it italic */ - term.c.attr.mode &= ~ATTR_REVERSE; + case 23: /* leave standout (highlight) mode */ + term.c.attr.mode &= ~ATTR_ITALIC; break; case 24: term.c.attr.mode &= ~ATTR_UNDERLINE; break; + case 25: + term.c.attr.mode &= ~ATTR_BLINK; + break; case 27: term.c.attr.mode &= ~ATTR_REVERSE; break; @@ -1174,7 +1227,7 @@ tsetattr(int *attr, int l) { else if(BETWEEN(attr[i], 90, 97)) term.c.attr.fg = attr[i] - 90 + 8; else if(BETWEEN(attr[i], 100, 107)) - term.c.attr.fg = attr[i] - 100 + 8; + term.c.attr.bg = attr[i] - 100 + 8; else fprintf(stderr, "erresc(default): gfx attr %d unknown\n", attr[i]), csidump(); break; @@ -1486,6 +1539,9 @@ strhandle(void) { break; } break; + case 'k': /* old title set compatibility */ + XStoreName(xw.dpy, xw.win, strescseq.buf); + break; case 'P': /* DSC -- Device Control String */ case '_': /* APC -- Application Program Command */ case '^': /* PM -- Privacy Message */ @@ -1548,8 +1604,8 @@ void tputc(char *c) { char ascii = *c; - if(fileio) - putc(ascii, fileio); + if(iofd != -1) + write(iofd, c, 1); if(term.esc & ESC_START) { if(term.esc & ESC_CSI) { @@ -1599,6 +1655,7 @@ tputc(char *c) { case '_': /* APC -- Application Program Command */ case '^': /* PM -- Privacy Message */ case ']': /* OSC -- Operating System Command */ + case 'k': /* old title set compatibility */ strreset(); strescseq.type = ascii; term.esc |= ESC_STR; @@ -1631,6 +1688,7 @@ tputc(char *c) { case 'c': /* RIS -- Reset to inital state */ treset(); term.esc = 0; + xresettitle(); break; case '=': /* DECPAM -- Application keypad */ term.mode |= MODE_APPKEYPAD; @@ -1661,6 +1719,8 @@ tputc(char *c) { if(sel.bx != -1 && BETWEEN(term.c.y, sel.by, sel.ey)) sel.bx = -1; switch(ascii) { + case '\0': /* padding character, do nothing */ + break; case '\t': tputtab(1); break; @@ -1725,16 +1785,16 @@ 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)); + term.line = xrealloc(term.line, row * sizeof(Line)); + term.alt = xrealloc(term.alt, row * sizeof(Line)); + term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty)); + term.tabs = xrealloc(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)); + term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph)); + term.alt[i] = xrealloc(term.alt[i], col * sizeof(Glyph)); for(x = mincol; x < col; x++) { term.line[i][x].state = 0; term.alt[i][x].state = 0; @@ -1881,14 +1941,24 @@ xgetfontinfo(XFontSet set, int *ascent, int *descent, short *lbearing, short *rb } void -initfonts(char *fontstr, char *bfontstr) { - if((dc.font.set = xinitfont(fontstr)) == NULL || - (dc.bfont.set = xinitfont(bfontstr)) == NULL) - die("Can't load font %s\n", dc.font.set ? BOLDFONT : FONT); +initfonts(char *fontstr, char *bfontstr, char *ifontstr, char *ibfontstr) { + if((dc.font.set = xinitfont(fontstr)) == NULL) + die("Can't load font %s\n", fontstr); + if((dc.bfont.set = xinitfont(bfontstr)) == NULL) + die("Can't load bfont %s\n", bfontstr); + if((dc.ifont.set = xinitfont(ifontstr)) == NULL) + die("Can't load ifont %s\n", ifontstr); + if((dc.ibfont.set = xinitfont(ibfontstr)) == NULL) + die("Can't load ibfont %s\n", ibfontstr); + xgetfontinfo(dc.font.set, &dc.font.ascent, &dc.font.descent, &dc.font.lbearing, &dc.font.rbearing); xgetfontinfo(dc.bfont.set, &dc.bfont.ascent, &dc.bfont.descent, &dc.bfont.lbearing, &dc.bfont.rbearing); + xgetfontinfo(dc.ifont.set, &dc.ifont.ascent, &dc.ifont.descent, + &dc.ifont.lbearing, &dc.ifont.rbearing); + xgetfontinfo(dc.ibfont.set, &dc.ibfont.ascent, &dc.ibfont.descent, + &dc.ibfont.lbearing, &dc.ibfont.rbearing); } void @@ -1896,12 +1966,23 @@ xinit(void) { XSetWindowAttributes attrs; Cursor cursor; Window parent; - int sw, sh; + int sw, sh, major, minor; if(!(xw.dpy = XOpenDisplay(NULL))) die("Can't open display\n"); xw.scr = XDefaultScreen(xw.dpy); + /* font */ + initfonts(FONT, BOLDFONT, ITALICFONT, ITALICBOLDFONT); + + /* XXX: Assuming same size for bold font */ + xw.cw = dc.font.rbearing - dc.font.lbearing; + xw.ch = dc.font.ascent + dc.font.descent; + + /* colors */ + xw.cmap = XDefaultColormap(xw.dpy, xw.scr); + xloadcols(); + /* adjust fixed window geometry */ if(xw.isfixed) { sw = DisplayWidth(xw.dpy, xw.scr); @@ -1910,44 +1991,36 @@ xinit(void) { xw.fx = sw + xw.fx - xw.fw - 1; if(xw.fy < 0) xw.fy = sh + xw.fy - xw.fh - 1; + + xw.h = xw.fh; + xw.w = xw.fw; } else { /* window - default size */ xw.h = 2*BORDER + term.row * xw.ch; xw.w = 2*BORDER + term.col * xw.cw; - xw.fw = xw.w; - xw.fh = xw.h; + xw.fx = 0; + xw.fy = 0; } - /* font */ - initfonts(FONT, BOLDFONT); - - /* XXX: Assuming same size for bold font */ - xw.cw = dc.font.rbearing - dc.font.lbearing; - xw.ch = dc.font.ascent + dc.font.descent; - - /* colors */ - xw.cmap = XDefaultColormap(xw.dpy, xw.scr); - xloadcols(); - attrs.background_pixel = dc.col[DefaultBG]; attrs.border_pixel = dc.col[DefaultBG]; attrs.bit_gravity = NorthWestGravity; attrs.event_mask = FocusChangeMask | KeyPressMask | ExposureMask | VisibilityChangeMask | StructureNotifyMask - | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask - | EnterWindowMask | LeaveWindowMask; + | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask; attrs.colormap = xw.cmap; parent = opt_embed ? strtol(opt_embed, NULL, 0) : XRootWindow(xw.dpy, xw.scr); xw.win = XCreateWindow(xw.dpy, parent, xw.fx, xw.fy, - xw.fw, xw.fh, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput, + xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput, XDefaultVisual(xw.dpy, xw.scr), CWBackPixel | CWBorderPixel | CWBitGravity | CWEventMask | CWColormap, &attrs); + if(!XdbeQueryExtension(xw.dpy, &major, &minor)) + die("Xdbe extension is not present\n"); xw.buf = XdbeAllocateBackBufferName(xw.dpy, xw.win, XdbeCopied); - /* input methods */ xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL); xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing @@ -1965,7 +2038,7 @@ xinit(void) { xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False); - XStoreName(xw.dpy, xw.win, opt_title ? opt_title : "st"); + xresettitle(); XMapWindow(xw.dpy, xw.win); xhints(); XSync(xw.dpy, 0); @@ -1994,6 +2067,11 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) { fontset = dc.bfont.set; } + if(base.mode & ATTR_ITALIC) + fontset = dc.ifont.set; + if(base.mode & (ATTR_ITALIC|ATTR_ITALIC)) + fontset = dc.ibfont.set; + XSetBackground(xw.dpy, dc.gc, dc.col[bg]); XSetForeground(xw.dpy, dc.gc, dc.col[fg]); @@ -2018,7 +2096,6 @@ void xcopy() { XdbeSwapInfo swpinfo[1] = {{xw.win, XdbeCopied}}; XdbeSwapBuffers(xw.dpy, swpinfo, 1); - } void @@ -2041,7 +2118,7 @@ xdrawcursor(void) { } else xclear(oldx, oldy, oldx, oldy); - xcopy(oldx, oldy, 1, 1); + xcopy(); /* draw the new one */ if(!(term.c.state & CURSOR_HIDE)) { @@ -2056,7 +2133,12 @@ xdrawcursor(void) { oldx = term.c.x, oldy = term.c.y; } - xcopy(term.c.x, term.c.y, 1, 1); + xcopy(); +} + +void +xresettitle(void) { + XStoreName(xw.dpy, xw.win, opt_title ? opt_title : "st"); } void @@ -2064,6 +2146,7 @@ redraw(void) { struct timespec tv = {0, REDRAW_TIMEOUT * 1000}; tfulldirt(); draw(); + XSync(xw.dpy, False); /* necessary for a good tput flash */ nanosleep(&tv, NULL); } @@ -2071,7 +2154,6 @@ void draw() { drawregion(0, 0, term.col, term.row); xcopy(); - gettimeofday(&xw.lastdraw, NULL); } void @@ -2254,15 +2336,8 @@ resize(XEvent *e) { return; if(tresize(col, row)) draw(); - ttyresize(col, row); xresize(col, row); -} - -bool -last_draw_too_old(void) { - struct timeval now; - gettimeofday(&now, NULL); - return TIMEDIFF(now, xw.lastdraw) >= DRAW_TIMEOUT/1000; + ttyresize(col, row); } void @@ -2270,29 +2345,20 @@ 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); - timeout.tv_sec = 0; - timeout.tv_usec = SELECT_TIMEOUT; - if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, &timeout) < 0) { + if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, NULL) < 0) { if(errno == EINTR) continue; die("select failed: %s\n", SERRNO); } - if(FD_ISSET(cmdfd, &rfd)) { + if(FD_ISSET(cmdfd, &rfd)) ttyread(); - stuff_to_print = 1; - } - if(stuff_to_print && last_draw_too_old()) { - stuff_to_print = 0; - draw(); - } + draw(); while(XPending(xw.dpy)) { XNextEvent(xw.dpy, &ev); @@ -2310,6 +2376,7 @@ main(int argc, char *argv[]) { unsigned int wr, hr; xw.fw = xw.fh = xw.fx = xw.fy = 0; + xw.isfixed = False; for(i = 1; i < argc; i++) { switch(argv[i][0] != '-' || argv[i][2] ? -1 : argv[i][1]) {