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Merge remote-tracking branch 'origin/master'
[st.git] / st.c
diff --git a/st.c b/st.c
index 097244c..37bec70 100644 (file)
--- a/st.c
+++ b/st.c
@@ -11,6 +11,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <signal.h>
+#include <stdint.h>
 #include <sys/ioctl.h>
 #include <sys/select.h>
 #include <sys/stat.h>
@@ -27,6 +28,7 @@
 #include <X11/keysym.h>
 #include <X11/Xft/Xft.h>
 #include <fontconfig/fontconfig.h>
+#include <wchar.h>
 
 #include "arg.h"
 
@@ -76,6 +78,7 @@ char *argv0;
 #define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg)
 #define IS_SET(flag) ((term.mode & (flag)) != 0)
 #define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_usec-t2.tv_usec)/1000)
+#define CEIL(x) (((x) != (int) (x)) ? (x) + 1 : (x))
 
 #define TRUECOLOR(r,g,b) (1 << 24 | (r) << 16 | (g) << 8 | (b))
 #define IS_TRUECOL(x)    (1 << 24 & (x))
@@ -95,6 +98,8 @@ enum glyph_attribute {
        ATTR_ITALIC    = 16,
        ATTR_BLINK     = 32,
        ATTR_WRAP      = 64,
+       ATTR_WIDE      = 128,
+       ATTR_WDUMMY    = 256,
 };
 
 enum cursor_movement {
@@ -128,10 +133,21 @@ enum term_mode {
        MODE_FOCUS       = 65536,
        MODE_MOUSEX10    = 131072,
        MODE_MOUSEMANY   = 262144,
+       MODE_BRCKTPASTE  = 524288,
        MODE_MOUSE       = MODE_MOUSEBTN|MODE_MOUSEMOTION|MODE_MOUSEX10\
                          |MODE_MOUSEMANY,
 };
 
+enum charset {
+       CS_GRAPHIC0,
+       CS_GRAPHIC1,
+       CS_UK,
+       CS_USA,
+       CS_MULTI,
+       CS_GER,
+       CS_FIN
+};
+
 enum escape_state {
        ESC_START      = 1,
        ESC_CSI        = 2,
@@ -164,9 +180,9 @@ typedef unsigned short ushort;
 
 typedef struct {
        char c[UTF_SIZ]; /* character code */
-       uchar mode;      /* attribute flags */
-       ulong fg;        /* foreground  */
-       ulong bg;        /* background  */
+       ushort mode;      /* attribute flags */
+       uint32_t fg;      /* foreground  */
+       uint32_t bg;      /* background  */
 } Glyph;
 
 typedef Glyph *Line;
@@ -211,6 +227,9 @@ typedef struct {
        int bot;      /* bottom scroll limit */
        int mode;     /* terminal mode flags */
        int esc;      /* escape state flags */
+       char trantbl[4]; /* charset table translation */
+       int charset;  /* current charset */
+       int icharset; /* selected charset for sequence */
        bool numlock; /* lock numbers in keyboard */
        bool *tabs;
 } Term;
@@ -221,7 +240,7 @@ typedef struct {
        Colourmap cmap;
        Window win;
        Drawable buf;
-       Atom xembed, wmdeletewin;
+       Atom xembed, wmdeletewin, netwmname, netwmpid;
        XIM xim;
        XIC xic;
        Draw draw;
@@ -238,15 +257,15 @@ typedef struct {
 } XWindow;
 
 typedef struct {
-       int b;
+       uint b;
        uint mask;
-       char s[ESC_BUF_SIZ];
+       char *s;
 } Mousekey;
 
 typedef struct {
        KeySym k;
        uint mask;
-       char s[ESC_BUF_SIZ];
+       char *s;
        /* three valued logic variables: 0 indifferent, 1 on, -1 off */
        signed char appkey;    /* application keypad */
        signed char appcursor; /* application cursor */
@@ -361,11 +380,14 @@ static void tsetdirtattr(int);
 static void tsetmode(bool, bool, int *, int);
 static void tfulldirt(void);
 static void techo(char *, int);
-static ulong tdefcolor(int *, int *, int);
+static int32_t tdefcolor(int *, int *, int);
+static void tselcs(void);
+static void tdeftran(char);
 static inline bool match(uint, uint);
 static void ttynew(void);
 static void ttyread(void);
 static void ttyresize(void);
+static void ttysend(char *, size_t);
 static void ttywrite(const char *, size_t);
 
 static void xdraws(char *, Glyph, int, int, int, int);
@@ -376,7 +398,7 @@ static void xinit(void);
 static void xloadcols(void);
 static int xsetcolorname(int, const char *);
 static int xloadfont(Font *, FcPattern *);
-static void xloadfonts(char *, int);
+static void xloadfonts(char *, double);
 static int xloadfontset(Font *);
 static void xsettitle(char *);
 static void xresettitle(void);
@@ -419,7 +441,6 @@ static int isfullutf8(char *, int);
 static ssize_t xwrite(int, char *, size_t);
 static void *xmalloc(size_t);
 static void *xrealloc(void *, size_t);
-static void *xcalloc(size_t, size_t);
 
 static void (*handler[LASTEvent])(XEvent *) = {
        [KeyPress] = kpress,
@@ -457,7 +478,7 @@ static char *opt_font = NULL;
 static int oldbutton = 3; /* button event on startup: 3 = release */
 
 static char *usedfont = NULL;
-static int usedfontsize = 0;
+static double usedfontsize = 0;
 
 /* Font Ring Cache */
 enum {
@@ -508,16 +529,6 @@ xrealloc(void *p, size_t len) {
        return p;
 }
 
-void *
-xcalloc(size_t nmemb, size_t size) {
-       void *p = calloc(nmemb, size);
-
-       if(!p)
-               die("Out of memory\n");
-
-       return p;
-}
-
 int
 utf8decode(char *s, long *u) {
        uchar c;
@@ -729,8 +740,13 @@ selsnap(int mode, int *x, int *y, int direction) {
                                }
                        }
 
+                       if(term.line[*y][*x+direction].mode & ATTR_WDUMMY) {
+                               *x += direction;
+                               continue;
+                       }
+
                        if(strchr(worddelimiters,
-                                       term.line[*y][*x + direction].c[0])) {
+                                       term.line[*y][*x+direction].c[0])) {
                                break;
                        }
 
@@ -825,18 +841,23 @@ mousereport(XEvent *e) {
                button = oldbutton + 32;
                ox = x;
                oy = y;
-       } else if(!IS_SET(MODE_MOUSESGR)
-                       && (e->xbutton.type == ButtonRelease
-                               || button == AnyButton)) {
-               button = 3;
        } else {
-               button -= Button1;
-               if(button >= 3)
-                       button += 64 - 3;
+               if(!IS_SET(MODE_MOUSESGR) && e->xbutton.type == ButtonRelease) {
+                       button = 3;
+               } else {
+                       button -= Button1;
+                       if(button >= 3)
+                               button += 64 - 3;
+               }
                if(e->xbutton.type == ButtonPress) {
                        oldbutton = button;
                        ox = x;
                        oy = y;
+               } else if(e->xbutton.type == ButtonRelease) {
+                       oldbutton = 3;
+                       /* MODE_MOUSEX10: no button release reporting */
+                       if(IS_SET(MODE_MOUSEX10))
+                               return;
                }
        }
 
@@ -853,8 +874,7 @@ mousereport(XEvent *e) {
                                e->xbutton.type == ButtonRelease ? 'm' : 'M');
        } else if(x < 223 && y < 223) {
                len = snprintf(buf, sizeof(buf), "\033[M%c%c%c",
-                               IS_SET(MODE_MOUSEX10)? button-1 : 32+button,
-                               32+x+1, 32+y+1);
+                               32+button, 32+x+1, 32+y+1);
        } else {
                return;
        }
@@ -875,9 +895,7 @@ bpress(XEvent *e) {
        for(mk = mshortcuts; mk < mshortcuts + LEN(mshortcuts); mk++) {
                if(e->xbutton.button == mk->b
                                && match(mk->mask, e->xbutton.state)) {
-                       ttywrite(mk->s, strlen(mk->s));
-                       if(IS_SET(MODE_ECHO))
-                               techo(mk->s, strlen(mk->s));
+                       ttysend(mk->s, strlen(mk->s));
                        return;
                }
        }
@@ -935,14 +953,15 @@ selcopy(void) {
                /* append every set & selected glyph to the selection */
                for(y = sel.nb.y; y < sel.ne.y + 1; y++) {
                        gp = &term.line[y][0];
-                       last = gp + term.col;
+                       last = &gp[term.col-1];
 
-                       while(--last >= gp && !(selected(last - gp, y) && \
-                                               strcmp(last->c, " ") != 0))
-                               /* nothing */;
+                       while(last >= gp && !(selected(last - gp, y) &&
+                                             strcmp(last->c, " ") != 0)) {
+                               --last;
+                       }
 
                        for(x = 0; gp <= last; x++, ++gp) {
-                               if(!selected(x, y))
+                               if(!selected(x, y) || (gp->mode & ATTR_WDUMMY))
                                        continue;
 
                                size = utf8size(gp->c);
@@ -959,7 +978,7 @@ selcopy(void) {
                         * st.
                         * FIXME: Fix the computer world.
                         */
-                       if(y < sel.ne.y && !((gp-1)->mode & ATTR_WRAP))
+                       if(y < sel.ne.y && x > 0 && !((gp-1)->mode & ATTR_WRAP))
                                *ptr++ = '\n';
 
                        /*
@@ -1011,7 +1030,11 @@ selnotify(XEvent *e) {
                        *repl++ = '\r';
                }
 
-               ttywrite((const char *)data, nitems * format / 8);
+               if(IS_SET(MODE_BRCKTPASTE))
+                       ttywrite("\033[200~", 6);
+               ttysend((char *)data, nitems * format / 8);
+               if(IS_SET(MODE_BRCKTPASTE))
+                       ttywrite("\033[201~", 6);
                XFree(data);
                /* number of 32-bit chunks returned */
                ofs += nitems * format / 32;
@@ -1278,6 +1301,13 @@ ttywrite(const char *s, size_t n) {
 }
 
 void
+ttysend(char *s, size_t n) {
+       ttywrite(s, n);
+       if(IS_SET(MODE_ECHO))
+               techo(s, n);
+}
+
+void
 ttyresize(void) {
        struct winsize w;
 
@@ -1335,13 +1365,14 @@ tfulldirt(void) {
 
 void
 tcursor(int mode) {
-       static TCursor c;
+       static TCursor c[2];
+       bool alt = IS_SET(MODE_ALTSCREEN);
 
        if(mode == CURSOR_SAVE) {
-               c = term.c;
+               c[alt] = term.c;
        } else if(mode == CURSOR_LOAD) {
-               term.c = c;
-               tmoveto(c.x, c.y);
+               term.c = c[alt];
+               tmoveto(c[alt].x, c[alt].y);
        }
 }
 
@@ -1361,6 +1392,8 @@ treset(void) {
        term.top = 0;
        term.bot = term.row - 1;
        term.mode = MODE_WRAP;
+       memset(term.trantbl, sizeof(term.trantbl), CS_USA);
+       term.charset = 0;
 
        tclearregion(0, 0, term.col-1, term.row-1);
        tmoveto(0, 0);
@@ -1369,7 +1402,7 @@ treset(void) {
 
 void
 tnew(int col, int row) {
-       memset(&term, 0, sizeof(Term));
+       term = (Term){ .c = { .attr = { .fg = defaultfg, .bg = defaultbg } } };
        tresize(col, row);
        term.numlock = 1;
 
@@ -1543,6 +1576,16 @@ tsetchar(char *c, Glyph *attr, int x, int y) {
                }
        }
 
+       if(term.line[y][x].mode & ATTR_WIDE) {
+               if(x+1 < term.col) {
+                       term.line[y][x+1].c[0] = ' ';
+                       term.line[y][x+1].mode &= ~ATTR_WDUMMY;
+               }
+       } else if(term.line[y][x].mode & ATTR_WDUMMY) {
+               term.line[y][x-1].c[0] = ' ';
+               term.line[y][x-1].mode &= ~ATTR_WIDE;
+       }
+
        term.dirty[y] = 1;
        term.line[y][x] = *attr;
        memcpy(term.line[y][x].c, c, UTF_SIZ);
@@ -1625,9 +1668,9 @@ tdeleteline(int n) {
        tscrollup(term.c.y, n);
 }
 
-ulong
+int32_t
 tdefcolor(int *attr, int *npar, int l) {
-       long idx = -1;
+       int32_t idx = -1;
        uint r, g, b;
 
        switch (attr[*npar + 1]) {
@@ -1676,7 +1719,7 @@ tdefcolor(int *attr, int *npar, int l) {
 void
 tsetattr(int *attr, int l) {
        int i;
-       ulong idx;
+       int32_t idx;
 
        for(i = 0; i < l; i++) {
                switch(attr[i]) {
@@ -1837,12 +1880,12 @@ tsetmode(bool priv, bool set, int *args, int narg) {
                        case 1034:
                                MODBIT(term.mode, set, MODE_8BIT);
                                break;
-                       case 1049: /* = 1047 and 1048 */
-                       case 47:
+                       case 1049: /* swap screen & set/restore cursor as xterm */
+                               tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
+                       case 47: /* swap screen */
                        case 1047:
                                if (!allowaltscreen)
                                        break;
-
                                alt = IS_SET(MODE_ALTSCREEN);
                                if(alt) {
                                        tclearregion(0, 0, term.col-1,
@@ -1856,6 +1899,9 @@ tsetmode(bool priv, bool set, int *args, int narg) {
                        case 1048:
                                tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
                                break;
+                       case 2004: /* 2004: bracketed paste mode */
+                               MODBIT(term.mode, set, MODE_BRCKTPASTE);
+                               break;
                        /* Not implemented mouse modes. See comments there. */
                        case 1001: /* mouse highlight mode; can hang the
                                      terminal by design when implemented. */
@@ -1899,6 +1945,9 @@ tsetmode(bool priv, bool set, int *args, int narg) {
 
 void
 csihandle(void) {
+       char buf[40];
+       int len;
+
        switch(csiescseq.mode) {
        default:
        unknown:
@@ -2047,6 +2096,13 @@ csihandle(void) {
        case 'm': /* SGR -- Terminal attribute (color) */
                tsetattr(csiescseq.arg, csiescseq.narg);
                break;
+       case 'n': /* DSR â€“ Device Status Report (cursor position) */
+               if (csiescseq.arg[0] == 6) {
+                       len = snprintf(buf, sizeof(buf),"\033[%i;%iR",
+                                       term.c.y+1, term.c.x+1);
+                       ttywrite(buf, len);
+                       break;
+               }
        case 'r': /* DECSTBM -- Set Scrolling Region */
                if(csiescseq.priv) {
                        goto unknown;
@@ -2097,20 +2153,21 @@ csireset(void) {
 void
 strhandle(void) {
        char *p = NULL;
-       int i, j, narg;
+       int j, narg, par;
 
        strparse();
        narg = strescseq.narg;
+       par = atoi(strescseq.args[0]);
 
        switch(strescseq.type) {
        case ']': /* OSC -- Operating System Command */
-               switch(i = atoi(strescseq.args[0])) {
+               switch(par) {
                case 0:
                case 1:
                case 2:
                        if(narg > 1)
                                xsettitle(strescseq.args[1]);
-                       break;
+                       return;
                case 4: /* color set */
                        if(narg < 3)
                                break;
@@ -2127,25 +2184,20 @@ strhandle(void) {
                                 */
                                redraw(0);
                        }
-                       break;
-               default:
-                       fprintf(stderr, "erresc: unknown str ");
-                       strdump();
-                       break;
+                       return;
                }
                break;
        case 'k': /* old title set compatibility */
                xsettitle(strescseq.args[0]);
-               break;
+               return;
        case 'P': /* DSC -- Device Control String */
        case '_': /* APC -- Application Program Command */
        case '^': /* PM -- Privacy Message */
-       default:
-               fprintf(stderr, "erresc: unknown str ");
-               strdump();
-               /* die(""); */
-               break;
+               return;
        }
+
+       fprintf(stderr, "erresc: unknown str ");
+       strdump();
 }
 
 void
@@ -2229,9 +2281,45 @@ techo(char *buf, int len) {
 }
 
 void
+tdeftran(char ascii) {
+       char c, (*bp)[2];
+       static char tbl[][2] = {
+               {'0', CS_GRAPHIC0}, {'1', CS_GRAPHIC1}, {'A', CS_UK},
+               {'B', CS_USA},      {'<', CS_MULTI},    {'K', CS_GER},
+               {'5', CS_FIN},      {'C', CS_FIN},
+               {0, 0}
+       };
+
+       for (bp = &tbl[0]; (c = (*bp)[0]) && c != ascii; ++bp)
+               /* nothing */;
+
+       if (c == 0)
+               fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
+       else
+               term.trantbl[term.icharset] = (*bp)[1];
+}
+
+void
+tselcs(void) {
+       if (term.trantbl[term.charset] == CS_GRAPHIC0)
+               term.c.attr.mode |= ATTR_GFX;
+       else
+               term.c.attr.mode &= ~ATTR_GFX;
+}
+
+void
 tputc(char *c, int len) {
        uchar ascii = *c;
        bool control = ascii < '\x20' || ascii == 0177;
+       long u8char;
+       int width;
+
+       if(len == 1) {
+               width = 1;
+       } else {
+               utf8decode(c, &u8char);
+               width = wcwidth(u8char);
+       }
 
        if(iofd != -1) {
                if(xwrite(iofd, c, len) < 0) {
@@ -2303,19 +2391,20 @@ tputc(char *c, int len) {
                case '\a':   /* BEL */
                        if(!(xw.state & WIN_FOCUSED))
                                xseturgency(1);
+                       if (bellvolume)
+                               XBell(xw.dpy, bellvolume);
                        return;
                case '\033': /* ESC */
                        csireset();
                        term.esc = ESC_START;
                        return;
                case '\016': /* SO */
+                       term.charset = 0;
+                       tselcs();
+                       return;
                case '\017': /* SI */
-                       /*
-                        * Different charsets are hard to handle. Applications
-                        * should use the right alt charset escapes for the
-                        * only reason they still exist: line drawing. The
-                        * rest is incompatible history st should not support.
-                        */
+                       term.charset = 1;
+                       tselcs();
                        return;
                case '\032': /* SUB */
                case '\030': /* CAN */
@@ -2343,22 +2432,8 @@ tputc(char *c, int len) {
                        if(ascii == '\\')
                                strhandle();
                } else if(term.esc & ESC_ALTCHARSET) {
-                       switch(ascii) {
-                       case '0': /* Line drawing set */
-                               term.c.attr.mode |= ATTR_GFX;
-                               break;
-                       case 'B': /* USASCII */
-                               term.c.attr.mode &= ~ATTR_GFX;
-                               break;
-                       case 'A': /* UK (IGNORED) */
-                       case '<': /* multinational charset (IGNORED) */
-                       case '5': /* Finnish (IGNORED) */
-                       case 'C': /* Finnish (IGNORED) */
-                       case 'K': /* German (IGNORED) */
-                               break;
-                       default:
-                               fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
-                       }
+                       tdeftran(ascii);
+                       tselcs();
                        term.esc = 0;
                } else if(term.esc & ESC_TEST) {
                        if(ascii == '8') { /* DEC screen alignment test. */
@@ -2389,13 +2464,12 @@ tputc(char *c, int len) {
                                term.esc |= ESC_STR;
                                break;
                        case '(': /* set primary charset G0 */
+                       case ')': /* set secondary charset G1 */
+                       case '*': /* set tertiary charset G2 */
+                       case '+': /* set quaternary charset G3 */
+                               term.icharset = ascii - '(';
                                term.esc |= ESC_ALTCHARSET;
                                break;
-                       case ')': /* set secondary charset G1 (IGNORED) */
-                       case '*': /* set tertiary charset G2 (IGNORED) */
-                       case '+': /* set quaternary charset G3 (IGNORED) */
-                               term.esc = 0;
-                               break;
                        case 'D': /* IND -- Linefeed */
                                if(term.c.y == term.bot) {
                                        tscrollup(term.top, 1);
@@ -2428,6 +2502,7 @@ tputc(char *c, int len) {
                                treset();
                                term.esc = 0;
                                xresettitle();
+                               xloadcols();
                                break;
                        case '=': /* DECPAM -- Application keypad */
                                term.mode |= MODE_APPKEYPAD;
@@ -2478,9 +2553,20 @@ tputc(char *c, int len) {
                        (term.col - term.c.x - 1) * sizeof(Glyph));
        }
 
+       if(term.c.x+width > term.col)
+               tnewline(1);
+
        tsetchar(c, &term.c.attr, term.c.x, term.c.y);
-       if(term.c.x+1 < term.col) {
-               tmoveto(term.c.x+1, term.c.y);
+
+       if(width == 2) {
+               term.line[term.c.y][term.c.x].mode |= ATTR_WIDE;
+               if(term.c.x+1 < term.col) {
+                       term.line[term.c.y][term.c.x+1].c[0] = '\0';
+                       term.line[term.c.y][term.c.x+1].mode = ATTR_WDUMMY;
+               }
+       }
+       if(term.c.x+width < term.col) {
+               tmoveto(term.c.x+width, term.c.y);
        } else {
                term.c.state |= CURSOR_WRAPNEXT;
        }
@@ -2534,8 +2620,8 @@ tresize(int col, int row) {
        /* allocate any new rows */
        for(/* i == minrow */; i < row; i++) {
                term.dirty[i] = 1;
-               term.line[i] = xcalloc(col, sizeof(Glyph));
-               term.alt [i] = xcalloc(col, sizeof(Glyph));
+               term.line[i] = xmalloc(col * sizeof(Glyph));
+               term.alt[i] = xmalloc(col * sizeof(Glyph));
        }
        if(col > term.col) {
                bp = term.tabs + term.col;
@@ -2589,6 +2675,13 @@ void
 xloadcols(void) {
        int i, r, g, b;
        XRenderColor color = { .alpha = 0xffff };
+       static bool loaded;
+       Colour *cp;
+
+       if(loaded) {
+               for (cp = dc.col; cp < dc.col + LEN(dc.col); ++cp)
+                       XftColorFree(xw.dpy, xw.vis, xw.cmap, cp);
+       }
 
        /* load colors [0-15] colors and [256-LEN(colorname)[ (config.h) */
        for(i = 0; i < LEN(colorname); i++) {
@@ -2621,6 +2714,7 @@ xloadcols(void) {
                        die("Could not allocate color %d\n", i);
                }
        }
+       loaded = true;
 }
 
 int
@@ -2729,9 +2823,9 @@ xloadfont(Font *f, FcPattern *pattern) {
 }
 
 void
-xloadfonts(char *fontstr, int fontsize) {
+xloadfonts(char *fontstr, double fontsize) {
        FcPattern *pattern;
-       FcResult result;
+       FcResult r_sz, r_psz;
        double fontval;
 
        if(fontstr[0] == '-') {
@@ -2745,12 +2839,16 @@ xloadfonts(char *fontstr, int fontsize) {
 
        if(fontsize > 0) {
                FcPatternDel(pattern, FC_PIXEL_SIZE);
+               FcPatternDel(pattern, FC_SIZE);
                FcPatternAddDouble(pattern, FC_PIXEL_SIZE, (double)fontsize);
                usedfontsize = fontsize;
        } else {
-               result = FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval);
-               if(result == FcResultMatch) {
-                       usedfontsize = (int)fontval;
+               r_psz = FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval);
+               r_sz = FcPatternGetDouble(pattern, FC_SIZE, 0, &fontval);
+               if(r_psz == FcResultMatch) {
+                       usedfontsize = fontval;
+               } else if(r_sz == FcResultMatch) {
+                       usedfontsize = -1;
                } else {
                        /*
                         * Default font size is 12, if none given. This is to
@@ -2767,9 +2865,15 @@ xloadfonts(char *fontstr, int fontsize) {
        if(xloadfont(&dc.font, pattern))
                die("st: can't open font %s\n", fontstr);
 
+       if(usedfontsize < 0) {
+               FcPatternGetDouble(dc.font.match->pattern,
+                                  FC_PIXEL_SIZE, 0, &fontval);
+               usedfontsize = fontval;
+       }
+
        /* Setting character width and height. */
-       xw.cw = dc.font.width;
-       xw.ch = dc.font.height;
+       xw.cw = CEIL(dc.font.width * cwscale);
+       xw.ch = CEIL(dc.font.height * chscale);
 
        FcPatternDel(pattern, FC_SLANT);
        FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC);
@@ -2836,6 +2940,7 @@ xinit(void) {
        Cursor cursor;
        Window parent;
        int sw, sh;
+       pid_t thispid = getpid();
 
        if(!(xw.dpy = XOpenDisplay(NULL)))
                die("Can't open display\n");
@@ -2927,8 +3032,13 @@ xinit(void) {
 
        xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
        xw.wmdeletewin = XInternAtom(xw.dpy, "WM_DELETE_WINDOW", False);
+       xw.netwmname = XInternAtom(xw.dpy, "_NET_WM_NAME", False);
        XSetWMProtocols(xw.dpy, xw.win, &xw.wmdeletewin, 1);
 
+       xw.netwmpid = XInternAtom(xw.dpy, "_NET_WM_PID", False);
+       XChangeProperty(xw.dpy, xw.win, xw.netwmpid, XA_CARDINAL, 32,
+                       PropModeReplace, (unsigned char *)&thispid, 1);
+
        xresettitle();
        XMapWindow(xw.dpy, xw.win);
        xhints();
@@ -2951,6 +3061,7 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
        Colour *fg, *bg, *temp, revfg, revbg, truefg, truebg;
        XRenderColor colfg, colbg;
        Rectangle r;
+       int oneatatime;
 
        frcflags = FRC_NORMAL;
 
@@ -2969,6 +3080,7 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
                        base.fg = defaultunderline;
        }
        if(IS_TRUECOL(base.fg)) {
+               colfg.alpha = 0xffff;
                colfg.red = TRUERED(base.fg);
                colfg.green = TRUEGREEN(base.fg);
                colfg.blue = TRUEBLUE(base.fg);
@@ -2979,6 +3091,7 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
        }
 
        if(IS_TRUECOL(base.bg)) {
+               colbg.alpha = 0xffff;
                colbg.green = TRUEGREEN(base.bg);
                colbg.red = TRUERED(base.bg);
                colbg.blue = TRUEBLUE(base.bg);
@@ -3078,6 +3191,7 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
                u8fs = s;
                u8fblen = 0;
                u8fl = 0;
+               oneatatime = font->width != xw.cw;
                for(;;) {
                        u8c = s;
                        u8cblen = utf8decode(s, &u8char);
@@ -3085,8 +3199,8 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
                        bytelen -= u8cblen;
 
                        doesexist = XftCharExists(xw.dpy, font->match, u8char);
-                       if(!doesexist || bytelen <= 0) {
-                               if(bytelen <= 0) {
+                       if(oneatatime || !doesexist || bytelen <= 0) {
+                               if(oneatatime || bytelen <= 0) {
                                        if(doesexist) {
                                                u8fl++;
                                                u8fblen += u8cblen;
@@ -3099,7 +3213,7 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
                                                        winy + font->ascent,
                                                        (FcChar8 *)u8fs,
                                                        u8fblen);
-                                       xp += font->width * u8fl;
+                                       xp += xw.cw * u8fl;
 
                                }
                                break;
@@ -3108,8 +3222,11 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
                        u8fl++;
                        u8fblen += u8cblen;
                }
-               if(doesexist)
+               if(doesexist) {
+                       if (oneatatime)
+                               continue;
                        break;
+               }
 
                /* Search the font cache. */
                for(i = 0; i < frclen; i++) {
@@ -3169,7 +3286,7 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
                                xp, winy + frc[i].font->ascent,
                                (FcChar8 *)u8c, u8cblen);
 
-               xp += font->width;
+               xp += xw.cw * wcwidth(u8char);
        }
 
        /*
@@ -3189,18 +3306,27 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
 void
 xdrawcursor(void) {
        static int oldx = 0, oldy = 0;
-       int sl;
+       int sl, width, curx;
        Glyph g = {{' '}, ATTR_NULL, defaultbg, defaultcs};
 
        LIMIT(oldx, 0, term.col-1);
        LIMIT(oldy, 0, term.row-1);
 
+       curx = term.c.x;
+
+       /* adjust position if in dummy */
+       if(term.line[oldy][oldx].mode & ATTR_WDUMMY)
+               oldx--;
+       if(term.line[term.c.y][curx].mode & ATTR_WDUMMY)
+               curx--;
+
        memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ);
 
        /* remove the old cursor */
        sl = utf8size(term.line[oldy][oldx].c);
+       width = (term.line[oldy][oldx].mode & ATTR_WIDE)? 2 : 1;
        xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx,
-                       oldy, 1, sl);
+                       oldy, width, sl);
 
        /* draw the new one */
        if(!(IS_SET(MODE_HIDE))) {
@@ -3212,26 +3338,28 @@ xdrawcursor(void) {
                        }
 
                        sl = utf8size(g.c);
-                       xdraws(g.c, g, term.c.x, term.c.y, 1, sl);
+                       width = (term.line[term.c.y][curx].mode & ATTR_WIDE)\
+                               ? 2 : 1;
+                       xdraws(g.c, g, term.c.x, term.c.y, width, sl);
                } else {
                        XftDrawRect(xw.draw, &dc.col[defaultcs],
-                                       borderpx + term.c.x * xw.cw,
+                                       borderpx + curx * xw.cw,
                                        borderpx + term.c.y * xw.ch,
                                        xw.cw - 1, 1);
                        XftDrawRect(xw.draw, &dc.col[defaultcs],
-                                       borderpx + term.c.x * xw.cw,
+                                       borderpx + curx * xw.cw,
                                        borderpx + term.c.y * xw.ch,
                                        1, xw.ch - 1);
                        XftDrawRect(xw.draw, &dc.col[defaultcs],
-                                       borderpx + (term.c.x + 1) * xw.cw - 1,
+                                       borderpx + (curx + 1) * xw.cw - 1,
                                        borderpx + term.c.y * xw.ch,
                                        1, xw.ch - 1);
                        XftDrawRect(xw.draw, &dc.col[defaultcs],
-                                       borderpx + term.c.x * xw.cw,
+                                       borderpx + curx * xw.cw,
                                        borderpx + (term.c.y + 1) * xw.ch - 1,
                                        xw.cw, 1);
                }
-               oldx = term.c.x, oldy = term.c.y;
+               oldx = curx, oldy = term.c.y;
        }
 }
 
@@ -3243,6 +3371,8 @@ xsettitle(char *p) {
        Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle,
                        &prop);
        XSetWMName(xw.dpy, xw.win, &prop);
+       XSetTextProperty(xw.dpy, xw.win, &prop, xw.netwmname);
+       XFree(prop.value);
 }
 
 void
@@ -3279,6 +3409,7 @@ drawregion(int x1, int y1, int x2, int y2) {
        Glyph base, new;
        char buf[DRAW_BUF_SIZ];
        bool ena_sel = sel.ob.x != -1;
+       long u8char;
 
        if(sel.alt ^ IS_SET(MODE_ALTSCREEN))
                ena_sel = 0;
@@ -3296,6 +3427,8 @@ drawregion(int x1, int y1, int x2, int y2) {
                ic = ib = ox = 0;
                for(x = x1; x < x2; x++) {
                        new = term.line[y][x];
+                       if(new.mode == ATTR_WDUMMY)
+                               continue;
                        if(ena_sel && selected(x, y))
                                new.mode ^= ATTR_REVERSE;
                        if(ib > 0 && (ATTRCMP(base, new)
@@ -3308,10 +3441,10 @@ drawregion(int x1, int y1, int x2, int y2) {
                                base = new;
                        }
 
-                       sl = utf8size(new.c);
+                       sl = utf8decode(new.c, &u8char);
                        memcpy(buf+ib, new.c, sl);
                        ib += sl;
-                       ++ic;
+                       ic += (new.mode & ATTR_WIDE)? 2 : 1;
                }
                if(ib > 0)
                        xdraws(buf, base, ox, y, ic, ib);
@@ -3385,15 +3518,7 @@ focus(XEvent *ev) {
 
 static inline bool
 match(uint mask, uint state) {
-       state &= ~ignoremod;
-
-       if(mask == XK_NO_MOD && state)
-               return false;
-       if(mask != XK_ANY_MOD && mask != XK_NO_MOD && !state)
-               return false;
-       if(mask == XK_ANY_MOD)
-               return true;
-       return state == mask;
+       return mask == XK_ANY_MOD || mask == (state & ~ignoremod);
 }
 
 void
@@ -3423,25 +3548,16 @@ kmap(KeySym k, uint state) {
                if(!match(kp->mask, state))
                        continue;
 
-               if(kp->appkey > 0) {
-                       if(!IS_SET(MODE_APPKEYPAD))
-                               continue;
-                       if(term.numlock && kp->appkey == 2)
-                               continue;
-               } else if(kp->appkey < 0 && IS_SET(MODE_APPKEYPAD)) {
+               if(IS_SET(MODE_APPKEYPAD) ? kp->appkey < 0 : kp->appkey > 0)
+                       continue;
+               if(term.numlock && kp->appkey == 2)
                        continue;
-               }
 
-               if((kp->appcursor < 0 && IS_SET(MODE_APPCURSOR)) ||
-                               (kp->appcursor > 0
-                                && !IS_SET(MODE_APPCURSOR))) {
+               if(IS_SET(MODE_APPCURSOR) ? kp->appcursor < 0 : kp->appcursor > 0)
                        continue;
-               }
 
-               if((kp->crlf < 0 && IS_SET(MODE_CRLF)) ||
-                               (kp->crlf > 0 && !IS_SET(MODE_CRLF))) {
+               if(IS_SET(MODE_CRLF) ? kp->crlf < 0 : kp->crlf > 0)
                        continue;
-               }
 
                return kp->s;
        }
@@ -3453,8 +3569,8 @@ void
 kpress(XEvent *ev) {
        XKeyEvent *e = &ev->xkey;
        KeySym ksym;
-       char xstr[31], buf[32], *customkey, *cp = buf;
-       int len, ret;
+       char buf[32], *customkey;
+       int len;
        long c;
        Status status;
        Shortcut *bp;
@@ -3462,8 +3578,7 @@ kpress(XEvent *ev) {
        if(IS_SET(MODE_KBDLOCK))
                return;
 
-       len = XmbLookupString(xw.xic, e, xstr, sizeof(xstr), &ksym, &status);
-       e->state &= ~Mod2Mask;
+       len = XmbLookupString(xw.xic, e, buf, sizeof buf, &ksym, &status);
        /* 1. shortcuts */
        for(bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
                if(ksym == bp->keysym && match(bp->mod, e->state)) {
@@ -3474,33 +3589,26 @@ kpress(XEvent *ev) {
 
        /* 2. custom keys from config.h */
        if((customkey = kmap(ksym, e->state))) {
-               len = strlen(customkey);
-               memcpy(buf, customkey, len);
-       /* 3. hardcoded (overrides X lookup) */
-       } else {
-               if(len == 0)
-                       return;
+               ttysend(customkey, strlen(customkey));
+               return;
+       }
 
-               if(len == 1 && e->state & Mod1Mask) {
-                       if(IS_SET(MODE_8BIT)) {
-                               if(*xstr < 0177) {
-                                       c = *xstr | 0x80;
-                                       ret = utf8encode(&c, cp);
-                                       cp += ret;
-                                       len = 0;
-                               }
-                       } else {
-                               *cp++ = '\033';
+       /* 3. composed string from input method */
+       if(len == 0)
+               return;
+       if(len == 1 && e->state & Mod1Mask) {
+               if(IS_SET(MODE_8BIT)) {
+                       if(*buf < 0177) {
+                               c = *buf | 0x80;
+                               len = utf8encode(&c, buf);
                        }
+               } else {
+                       buf[1] = buf[0];
+                       buf[0] = '\033';
+                       len = 2;
                }
-
-               memcpy(cp, xstr, len);
-               len = cp - buf + len;
        }
-
-       ttywrite(buf, len);
-       if(IS_SET(MODE_ECHO))
-               techo(buf, len);
+       ttysend(buf, len);
 }
 
 
@@ -3568,16 +3676,18 @@ run(void) {
                }
        }
 
+       ttynew();
        if(!xw.isfixed)
                cresize(w, h);
        else
                cresize(xw.fw, xw.fh);
-       ttynew();
 
        gettimeofday(&lastblink, NULL);
        gettimeofday(&last, NULL);
 
        for(xev = actionfps;;) {
+               long deltatime;
+
                FD_ZERO(&rfd);
                FD_SET(cmdfd, &rfd);
                FD_SET(xfd, &rfd);
@@ -3591,8 +3701,8 @@ run(void) {
                        ttyread();
                        if(blinktimeout) {
                                blinkset = tattrset(ATTR_BLINK);
-                               if(!blinkset && term.mode & ATTR_BLINK)
-                                       term.mode &= ~(MODE_BLINK);
+                               if(!blinkset)
+                                       MODBIT(term.mode, 0, MODE_BLINK);
                        }
                }
 
@@ -3611,8 +3721,9 @@ run(void) {
                        gettimeofday(&lastblink, NULL);
                        dodraw = 1;
                }
-               if(TIMEDIFF(now, last) \
-                               > (xev? (1000/xfps) : (1000/actionfps))) {
+               deltatime = TIMEDIFF(now, last);
+               if(deltatime > (xev? (1000/xfps) : (1000/actionfps))
+                               || deltatime < 0) {
                        dodraw = 1;
                        last = now;
                }
@@ -3698,7 +3809,7 @@ main(int argc, char *argv[]) {
                        xw.fh = (int)hr;
                if(bitm & XNegative && xw.fx == 0)
                        xw.fx = -1;
-               if(bitm & XNegative && xw.fy == 0)
+               if(bitm & YNegative && xw.fy == 0)
                        xw.fy = -1;
 
                if(xw.fh != 0 && xw.fw != 0)