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Enable blinking in st.
[st.git] / st.c
diff --git a/st.c b/st.c
index d7d70e7..8065ebe 100644 (file)
--- a/st.c
+++ b/st.c
@@ -36,6 +36,7 @@ char *argv0;
 #define Draw XftDraw *
 #define Colour XftColor
 #define Colourmap Colormap
 #define Draw XftDraw *
 #define Colour XftColor
 #define Colourmap Colormap
+#define Rectangle XRectangle
 
 #if   defined(__linux)
  #include <pty.h>
 
 #if   defined(__linux)
  #include <pty.h>
@@ -85,6 +86,7 @@ enum glyph_attribute {
        ATTR_GFX       = 8,
        ATTR_ITALIC    = 16,
        ATTR_BLINK     = 32,
        ATTR_GFX       = 8,
        ATTR_ITALIC    = 16,
        ATTR_BLINK     = 32,
+       ATTR_WRAP      = 64,
 };
 
 enum cursor_movement {
 };
 
 enum cursor_movement {
@@ -98,11 +100,6 @@ enum cursor_state {
        CURSOR_ORIGIN   = 2
 };
 
        CURSOR_ORIGIN   = 2
 };
 
-enum glyph_state {
-       GLYPH_SET   = 1,
-       GLYPH_DIRTY = 2
-};
-
 enum term_mode {
        MODE_WRAP        = 1,
        MODE_INSERT      = 2,
 enum term_mode {
        MODE_WRAP        = 1,
        MODE_INSERT      = 2,
@@ -118,6 +115,9 @@ enum term_mode {
        MODE_ECHO        = 1024,
        MODE_APPCURSOR   = 2048,
        MODE_MOUSESGR    = 4096,
        MODE_ECHO        = 1024,
        MODE_APPCURSOR   = 2048,
        MODE_MOUSESGR    = 4096,
+       MODE_8BIT        = 8192,
+       MODE_BLINK       = 16384,
+       MODE_FBLINK      = 32768,
 };
 
 enum escape_state {
 };
 
 enum escape_state {
@@ -140,6 +140,11 @@ enum selection_type {
        SEL_RECTANGULAR = 2
 };
 
        SEL_RECTANGULAR = 2
 };
 
+enum selection_snap {
+       SNAP_WORD = 1,
+       SNAP_LINE = 2
+};
+
 /* bit macro */
 #undef B0
 enum { B0=1, B1=2, B2=4, B3=8, B4=16, B5=32, B6=64, B7=128 };
 /* bit macro */
 #undef B0
 enum { B0=1, B1=2, B2=4, B3=8, B4=16, B5=32, B6=64, B7=128 };
@@ -154,7 +159,6 @@ typedef struct {
        uchar mode;  /* attribute flags */
        ushort fg;   /* foreground  */
        ushort bg;   /* background  */
        uchar mode;  /* attribute flags */
        ushort fg;   /* foreground  */
        ushort bg;   /* background  */
-       uchar state; /* state flags    */
 } Glyph;
 
 typedef Glyph *Line;
 } Glyph;
 
 typedef Glyph *Line;
@@ -238,6 +242,7 @@ typedef struct {
 typedef struct {
        int mode;
        int type;
 typedef struct {
        int mode;
        int type;
+       int snap;
        int bx, by;
        int ex, ey;
        struct {
        int bx, by;
        int ex, ey;
        struct {
@@ -310,7 +315,8 @@ static void strhandle(void);
 static void strparse(void);
 static void strreset(void);
 
 static void strparse(void);
 static void strreset(void);
 
-static void tclearregion(int, int, int, int, int);
+static int tattrset(int);
+static void tclearregion(int, int, int, int);
 static void tcursor(int);
 static void tdeletechar(int);
 static void tdeleteline(int);
 static void tcursor(int);
 static void tdeletechar(int);
 static void tdeleteline(int);
@@ -331,6 +337,7 @@ static void tsetchar(char *, Glyph *, int, int);
 static void tsetscroll(int, int);
 static void tswapscreen(void);
 static void tsetdirt(int, int);
 static void tsetscroll(int, int);
 static void tswapscreen(void);
 static void tsetdirt(int, int);
+static void tsetdirtattr(int);
 static void tsetmode(bool, bool, int *, int);
 static void tfulldirt(void);
 static void techo(char *, int);
 static void tsetmode(bool, bool, int *, int);
 static void tfulldirt(void);
 static void techo(char *, int);
@@ -378,6 +385,7 @@ static void selinit(void);
 static inline bool selected(int, int);
 static void selcopy(void);
 static void selscroll(int, int);
 static inline bool selected(int, int);
 static void selcopy(void);
 static void selscroll(int, int);
+static void selsnap(int, int *, int *, int);
 
 static int utf8decode(char *, long *);
 static int utf8encode(long *, char *);
 
 static int utf8decode(char *, long *);
 static int utf8encode(long *, char *);
@@ -663,6 +671,23 @@ selected(int x, int y) {
                        && (x <= sel.e.x || sel.b.y != sel.e.y));
 }
 
                        && (x <= sel.e.x || sel.b.y != sel.e.y));
 }
 
+void
+selsnap(int mode, int *x, int *y, int direction) {
+       switch(mode) {
+       case SNAP_WORD:
+               while(*x > 0 && *x < term.col-1
+                               && term.line[*y][*x + direction].c[0] != ' ') {
+                       *x += direction;
+               }
+               break;
+       case SNAP_LINE:
+               *x = (direction < 0) ? 0 : term.col - 1;
+               break;
+       default:
+               break;
+       }
+}
+
 void
 getbuttoninfo(XEvent *e) {
        int type;
 void
 getbuttoninfo(XEvent *e) {
        int type;
@@ -673,6 +698,15 @@ getbuttoninfo(XEvent *e) {
        sel.ex = x2col(e->xbutton.x);
        sel.ey = y2row(e->xbutton.y);
 
        sel.ex = x2col(e->xbutton.x);
        sel.ey = y2row(e->xbutton.y);
 
+       if (sel.by < sel.ey
+                       || (sel.by == sel.ey && sel.bx < sel.ex)) {
+               selsnap(sel.snap, &sel.bx, &sel.by, -1);
+               selsnap(sel.snap, &sel.ex, &sel.ey, +1);
+       } else {
+               selsnap(sel.snap, &sel.ex, &sel.ey, -1);
+               selsnap(sel.snap, &sel.bx, &sel.by, +1);
+       }
+
        sel.b.x = sel.by < sel.ey ? sel.bx : sel.ex;
        sel.b.y = MIN(sel.by, sel.ey);
        sel.e.x = sel.by < sel.ey ? sel.ex : sel.bx;
        sel.b.x = sel.by < sel.ey ? sel.bx : sel.ex;
        sel.b.y = MIN(sel.by, sel.ey);
        sel.e.x = sel.by < sel.ey ? sel.ex : sel.bx;
@@ -736,9 +770,14 @@ mousereport(XEvent *e) {
 
 void
 bpress(XEvent *e) {
 
 void
 bpress(XEvent *e) {
+       struct timeval now;
+
        if(IS_SET(MODE_MOUSE)) {
                mousereport(e);
        } else if(e->xbutton.button == Button1) {
        if(IS_SET(MODE_MOUSE)) {
                mousereport(e);
        } else if(e->xbutton.button == Button1) {
+               gettimeofday(&now, NULL);
+
+               /* Clear previous selection, logically and visually. */
                if(sel.bx != -1) {
                        sel.bx = -1;
                        tsetdirt(sel.b.y, sel.e.y);
                if(sel.bx != -1) {
                        sel.bx = -1;
                        tsetdirt(sel.b.y, sel.e.y);
@@ -748,6 +787,36 @@ bpress(XEvent *e) {
                sel.type = SEL_REGULAR;
                sel.ex = sel.bx = x2col(e->xbutton.x);
                sel.ey = sel.by = y2row(e->xbutton.y);
                sel.type = SEL_REGULAR;
                sel.ex = sel.bx = x2col(e->xbutton.x);
                sel.ey = sel.by = y2row(e->xbutton.y);
+
+               /*
+                * If the user clicks below predefined timeouts specific
+                * snapping behaviour is exposed.
+                */
+               if(TIMEDIFF(now, sel.tclick2) <= tripleclicktimeout) {
+                       sel.snap = SNAP_LINE;
+               } else if(TIMEDIFF(now, sel.tclick1) <= doubleclicktimeout) {
+                       sel.snap = SNAP_WORD;
+               } else {
+                       sel.snap = 0;
+               }
+               selsnap(sel.snap, &sel.bx, &sel.by, -1);
+               selsnap(sel.snap, &sel.ex, &sel.ey, 1);
+               sel.b.x = sel.bx;
+               sel.b.y = sel.by;
+               sel.e.x = sel.ex;
+               sel.e.y = sel.ey;
+
+               /*
+                * Draw selection, unless it's regular and we don't want to
+                * make clicks visible
+                */
+               if(sel.snap != 0) {
+                       sel.mode++;
+                       tsetdirt(sel.b.y, sel.e.y);
+                       draw();
+               }
+               sel.tclick2 = sel.tclick1;
+               sel.tclick1 = now;
        } else if(e->xbutton.button == Button4) {
                ttywrite("\031", 1);
        } else if(e->xbutton.button == Button5) {
        } else if(e->xbutton.button == Button4) {
                ttywrite("\031", 1);
        } else if(e->xbutton.button == Button5) {
@@ -757,8 +826,8 @@ bpress(XEvent *e) {
 
 void
 selcopy(void) {
 
 void
 selcopy(void) {
-       char *str, *ptr, *p;
-       int x, y, bufsize, isselected = 0, size;
+       char *str, *ptr;
+       int x, y, bufsize, size;
        Glyph *gp, *last;
 
        if(sel.bx == -1) {
        Glyph *gp, *last;
 
        if(sel.bx == -1) {
@@ -769,23 +838,19 @@ selcopy(void) {
 
                /* append every set & selected glyph to the selection */
                for(y = sel.b.y; y < sel.e.y + 1; y++) {
 
                /* append every set & selected glyph to the selection */
                for(y = sel.b.y; y < sel.e.y + 1; y++) {
-                       isselected = 0;
                        gp = &term.line[y][0];
                        last = gp + term.col;
 
                        gp = &term.line[y][0];
                        last = gp + term.col;
 
-                       while(--last >= gp && !(last->state & GLYPH_SET))
+                       while(--last >= gp && !(selected(last - gp, y) && \
+                                               strcmp(last->c, " ") != 0))
                                /* nothing */;
 
                        for(x = 0; gp <= last; x++, ++gp) {
                                /* nothing */;
 
                        for(x = 0; gp <= last; x++, ++gp) {
-                               if(!selected(x, y)) {
+                               if(!selected(x, y))
                                        continue;
                                        continue;
-                               } else {
-                                       isselected = 1;
-                               }
 
 
-                               p = (gp->state & GLYPH_SET) ? gp->c : " ";
-                               size = utf8size(p);
-                               memcpy(ptr, p, size);
+                               size = utf8size(gp->c);
+                               memcpy(ptr, gp->c, size);
                                ptr += size;
                        }
 
                                ptr += size;
                        }
 
@@ -798,7 +863,7 @@ selcopy(void) {
                         * st.
                         * FIXME: Fix the computer world.
                         */
                         * st.
                         * FIXME: Fix the computer world.
                         */
-                       if(isselected && y < sel.e.y)
+                       if(y < sel.e.y && !((gp-1)->mode & ATTR_WRAP))
                                *ptr++ = '\n';
                }
                *ptr = 0;
                                *ptr++ = '\n';
                }
                *ptr = 0;
@@ -916,8 +981,6 @@ xsetsel(char *str) {
 
 void
 brelease(XEvent *e) {
 
 void
 brelease(XEvent *e) {
-       struct timeval now;
-
        if(IS_SET(MODE_MOUSE)) {
                mousereport(e);
                return;
        if(IS_SET(MODE_MOUSE)) {
                mousereport(e);
                return;
@@ -926,42 +989,15 @@ brelease(XEvent *e) {
        if(e->xbutton.button == Button2) {
                selpaste(NULL);
        } else if(e->xbutton.button == Button1) {
        if(e->xbutton.button == Button2) {
                selpaste(NULL);
        } else if(e->xbutton.button == Button1) {
-               sel.mode = 0;
-               getbuttoninfo(e);
-               term.dirty[sel.ey] = 1;
-               if(sel.bx == sel.ex && sel.by == sel.ey) {
+               if(sel.mode < 2) {
                        sel.bx = -1;
                        sel.bx = -1;
-                       gettimeofday(&now, NULL);
-
-                       if(TIMEDIFF(now, sel.tclick2) <= tripleclicktimeout) {
-                               /* triple click on the line */
-                               sel.b.x = sel.bx = 0;
-                               sel.e.x = sel.ex = term.col;
-                               sel.b.y = sel.e.y = sel.ey;
-                               selcopy();
-                       } else if(TIMEDIFF(now, sel.tclick1) <= doubleclicktimeout) {
-                               /* double click to select word */
-                               sel.bx = sel.ex;
-                               while(sel.bx > 0 && 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(sel.ex < term.col-1 && 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();
-                       }
                } else {
                } else {
+                       getbuttoninfo(e);
                        selcopy();
                }
                        selcopy();
                }
+               sel.mode = 0;
+               term.dirty[sel.ey] = 1;
        }
        }
-
-       memcpy(&sel.tclick2, &sel.tclick1, sizeof(struct timeval));
-       gettimeofday(&sel.tclick1, NULL);
 }
 
 void
 }
 
 void
@@ -976,6 +1012,7 @@ bmotion(XEvent *e) {
        if(!sel.mode)
                return;
 
        if(!sel.mode)
                return;
 
+       sel.mode++;
        oldey = sel.ey;
        oldex = sel.ex;
        oldsby = sel.b.y;
        oldey = sel.ey;
        oldex = sel.ex;
        oldsby = sel.b.y;
@@ -1142,6 +1179,20 @@ ttyresize(void) {
                fprintf(stderr, "Couldn't set window size: %s\n", SERRNO);
 }
 
                fprintf(stderr, "Couldn't set window size: %s\n", SERRNO);
 }
 
+int
+tattrset(int attr) {
+       int i, j;
+
+       for(i = 0; i < term.row-1; i++) {
+               for(j = 0; j < term.col-1; j++) {
+                       if(term.line[i][j].mode & attr)
+                               return 1;
+               }
+       }
+
+       return 0;
+}
+
 void
 tsetdirt(int top, int bot) {
        int i;
 void
 tsetdirt(int top, int bot) {
        int i;
@@ -1153,6 +1204,20 @@ tsetdirt(int top, int bot) {
                term.dirty[i] = 1;
 }
 
                term.dirty[i] = 1;
 }
 
+void
+tsetdirtattr(int attr) {
+       int i, j;
+
+       for(i = 0; i < term.row-1; i++) {
+               for(j = 0; j < term.col-1; j++) {
+                       if(term.line[i][j].mode & attr) {
+                               tsetdirt(i, i);
+                               break;
+                       }
+               }
+       }
+}
+
 void
 tfulldirt(void) {
        tsetdirt(0, term.row-1);
 void
 tfulldirt(void) {
        tsetdirt(0, term.row-1);
@@ -1187,30 +1252,17 @@ treset(void) {
        term.bot = term.row - 1;
        term.mode = MODE_WRAP;
 
        term.bot = term.row - 1;
        term.mode = MODE_WRAP;
 
-       tclearregion(0, 0, term.col-1, term.row-1, 0);
+       tclearregion(0, 0, term.col-1, term.row-1);
        tmoveto(0, 0);
        tcursor(CURSOR_SAVE);
 }
 
 void
 tnew(int col, int row) {
        tmoveto(0, 0);
        tcursor(CURSOR_SAVE);
 }
 
 void
 tnew(int col, int row) {
-       /* set screen size */
-       term.row = row;
-       term.col = col;
-       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] = xmalloc(term.col * sizeof(Glyph));
-               term.alt [row] = xmalloc(term.col * sizeof(Glyph));
-               term.dirty[row] = 0;
-       }
-
+       memset(&term, 0, sizeof(Term));
+       tresize(col, row);
        term.numlock = 1;
        term.numlock = 1;
-       memset(term.tabs, 0, term.col * sizeof(*term.tabs));
-       /* setup screen */
+
        treset();
 }
 
        treset();
 }
 
@@ -1231,7 +1283,7 @@ tscrolldown(int orig, int n) {
 
        LIMIT(n, 0, term.bot-orig+1);
 
 
        LIMIT(n, 0, term.bot-orig+1);
 
-       tclearregion(0, term.bot-n+1, term.col-1, term.bot, 0);
+       tclearregion(0, term.bot-n+1, term.col-1, term.bot);
 
        for(i = term.bot; i >= orig+n; i--) {
                temp = term.line[i];
 
        for(i = term.bot; i >= orig+n; i--) {
                temp = term.line[i];
@@ -1251,7 +1303,7 @@ tscrollup(int orig, int n) {
        Line temp;
        LIMIT(n, 0, term.bot-orig+1);
 
        Line temp;
        LIMIT(n, 0, term.bot-orig+1);
 
-       tclearregion(0, orig, term.col-1, orig+n-1, 0);
+       tclearregion(0, orig, term.col-1, orig+n-1);
 
        for(i = orig; i <= term.bot-n; i++) {
                 temp = term.line[i];
 
        for(i = orig; i <= term.bot-n; i++) {
                 temp = term.line[i];
@@ -1385,11 +1437,10 @@ tsetchar(char *c, Glyph *attr, int x, int y) {
        term.dirty[y] = 1;
        term.line[y][x] = *attr;
        memcpy(term.line[y][x].c, c, UTF_SIZ);
        term.dirty[y] = 1;
        term.line[y][x] = *attr;
        memcpy(term.line[y][x].c, c, UTF_SIZ);
-       term.line[y][x].state |= GLYPH_SET;
 }
 
 void
 }
 
 void
-tclearregion(int x1, int y1, int x2, int y2, int bce) {
+tclearregion(int x1, int y1, int x2, int y2) {
        int x, y, temp;
 
        if(x1 > x2)
        int x, y, temp;
 
        if(x1 > x2)
@@ -1405,13 +1456,10 @@ tclearregion(int x1, int y1, int x2, int y2, int bce) {
        for(y = y1; y <= y2; y++) {
                term.dirty[y] = 1;
                for(x = x1; x <= x2; x++) {
        for(y = y1; y <= y2; y++) {
                term.dirty[y] = 1;
                for(x = x1; x <= x2; x++) {
-                       if(bce) {
-                               term.line[y][x] = term.c.attr;
-                               memcpy(term.line[y][x].c, " ", 2);
-                               term.line[y][x].state |= GLYPH_SET;
-                       } else {
-                               term.line[y][x].state = 0;
-                       }
+                       if(selected(x, y))
+                               selclear(NULL);
+                       term.line[y][x] = term.c.attr;
+                       memcpy(term.line[y][x].c, " ", 2);
                }
        }
 }
                }
        }
 }
@@ -1425,13 +1473,13 @@ tdeletechar(int n) {
        term.dirty[term.c.y] = 1;
 
        if(src >= term.col) {
        term.dirty[term.c.y] = 1;
 
        if(src >= term.col) {
-               tclearregion(term.c.x, term.c.y, term.col-1, term.c.y, 0);
+               tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
                return;
        }
 
        memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src],
                        size * sizeof(Glyph));
                return;
        }
 
        memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src],
                        size * sizeof(Glyph));
-       tclearregion(term.col-n, term.c.y, term.col-1, term.c.y, 0);
+       tclearregion(term.col-n, term.c.y, term.col-1, term.c.y);
 }
 
 void
 }
 
 void
@@ -1443,13 +1491,13 @@ tinsertblank(int n) {
        term.dirty[term.c.y] = 1;
 
        if(dst >= term.col) {
        term.dirty[term.c.y] = 1;
 
        if(dst >= term.col) {
-               tclearregion(term.c.x, term.c.y, term.col-1, term.c.y, 0);
+               tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
                return;
        }
 
        memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src],
                        size * sizeof(Glyph));
                return;
        }
 
        memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src],
                        size * sizeof(Glyph));
-       tclearregion(src, term.c.y, dst - 1, term.c.y, 0);
+       tclearregion(src, term.c.y, dst - 1, term.c.y);
 }
 
 void
 }
 
 void
@@ -1475,8 +1523,9 @@ tsetattr(int *attr, int l) {
        for(i = 0; i < l; i++) {
                switch(attr[i]) {
                case 0:
        for(i = 0; i < l; i++) {
                switch(attr[i]) {
                case 0:
-                       term.c.attr.mode &= ~(ATTR_REVERSE | ATTR_UNDERLINE | ATTR_BOLD \
-                                       | ATTR_ITALIC | ATTR_BLINK);
+                       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;
                        term.c.attr.fg = defaultfg;
                        term.c.attr.bg = defaultbg;
                        break;
@@ -1636,6 +1685,9 @@ tsetmode(bool priv, bool set, int *args, int narg) {
                        case 1006:
                                MODBIT(term.mode, set, MODE_MOUSESGR);
                                break;
                        case 1006:
                                MODBIT(term.mode, set, MODE_MOUSESGR);
                                break;
+                       case 1034:
+                               MODBIT(term.mode, set, MODE_8BIT);
+                               break;
                        case 1049: /* = 1047 and 1048 */
                        case 47:
                        case 1047:
                        case 1049: /* = 1047 and 1048 */
                        case 47:
                        case 1047:
@@ -1645,7 +1697,7 @@ tsetmode(bool priv, bool set, int *args, int narg) {
                                alt = IS_SET(MODE_ALTSCREEN);
                                if(alt) {
                                        tclearregion(0, 0, term.col-1,
                                alt = IS_SET(MODE_ALTSCREEN);
                                if(alt) {
                                        tclearregion(0, 0, term.col-1,
-                                                       term.row-1, 0);
+                                                       term.row-1);
                                }
                                if(set ^ alt)           /* set is always 1 or 0 */
                                        tswapscreen();
                                }
                                if(set ^ alt)           /* set is always 1 or 0 */
                                        tswapscreen();
@@ -1764,19 +1816,19 @@ csihandle(void) {
                sel.bx = -1;
                switch(csiescseq.arg[0]) {
                case 0: /* below */
                sel.bx = -1;
                switch(csiescseq.arg[0]) {
                case 0: /* below */
-                       tclearregion(term.c.x, term.c.y, term.col-1, term.c.y, 1);
+                       tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
                        if(term.c.y < term.row-1) {
                                tclearregion(0, term.c.y+1, term.col-1,
                        if(term.c.y < term.row-1) {
                                tclearregion(0, term.c.y+1, term.col-1,
-                                               term.row-1, 1);
+                                               term.row-1);
                        }
                        break;
                case 1: /* above */
                        if(term.c.y > 1)
                        }
                        break;
                case 1: /* above */
                        if(term.c.y > 1)
-                               tclearregion(0, 0, term.col-1, term.c.y-1, 1);
-                       tclearregion(0, term.c.y, term.c.x, term.c.y, 1);
+                               tclearregion(0, 0, term.col-1, term.c.y-1);
+                       tclearregion(0, term.c.y, term.c.x, term.c.y);
                        break;
                case 2: /* all */
                        break;
                case 2: /* all */
-                       tclearregion(0, 0, term.col-1, term.row-1, 1);
+                       tclearregion(0, 0, term.col-1, term.row-1);
                        break;
                default:
                        goto unknown;
                        break;
                default:
                        goto unknown;
@@ -1786,13 +1838,13 @@ csihandle(void) {
                switch(csiescseq.arg[0]) {
                case 0: /* right */
                        tclearregion(term.c.x, term.c.y, term.col-1,
                switch(csiescseq.arg[0]) {
                case 0: /* right */
                        tclearregion(term.c.x, term.c.y, term.col-1,
-                                       term.c.y, 1);
+                                       term.c.y);
                        break;
                case 1: /* left */
                        break;
                case 1: /* left */
-                       tclearregion(0, term.c.y, term.c.x, term.c.y, 1);
+                       tclearregion(0, term.c.y, term.c.x, term.c.y);
                        break;
                case 2: /* all */
                        break;
                case 2: /* all */
-                       tclearregion(0, term.c.y, term.col-1, term.c.y, 1);
+                       tclearregion(0, term.c.y, term.col-1, term.c.y);
                        break;
                }
                break;
                        break;
                }
                break;
@@ -1818,7 +1870,7 @@ csihandle(void) {
        case 'X': /* ECH -- Erase <n> char */
                DEFAULT(csiescseq.arg[0], 1);
                tclearregion(term.c.x, term.c.y,
        case 'X': /* ECH -- Erase <n> char */
                DEFAULT(csiescseq.arg[0], 1);
                tclearregion(term.c.x, term.c.y,
-                               term.c.x + csiescseq.arg[0] - 1, term.c.y, 1);
+                               term.c.x + csiescseq.arg[0] - 1, term.c.y);
                break;
        case 'P': /* DCH -- Delete <n> char */
                DEFAULT(csiescseq.arg[0], 1);
                break;
        case 'P': /* DCH -- Delete <n> char */
                DEFAULT(csiescseq.arg[0], 1);
@@ -2259,8 +2311,10 @@ tputc(char *c, int len) {
                return;
        if(sel.bx != -1 && BETWEEN(term.c.y, sel.by, sel.ey))
                sel.bx = -1;
                return;
        if(sel.bx != -1 && BETWEEN(term.c.y, sel.by, sel.ey))
                sel.bx = -1;
-       if(IS_SET(MODE_WRAP) && term.c.state & CURSOR_WRAPNEXT)
-               tnewline(1); /* always go to first col */
+       if(IS_SET(MODE_WRAP) && (term.c.state & CURSOR_WRAPNEXT)) {
+               term.line[term.c.y][term.c.x].mode |= ATTR_WRAP;
+               tnewline(1);
+       }
 
        if(IS_SET(MODE_INSERT) && term.c.x+1 < term.col) {
                memmove(&term.line[term.c.y][term.c.x+1],
 
        if(IS_SET(MODE_INSERT) && term.c.x+1 < term.col) {
                memmove(&term.line[term.c.y][term.c.x+1],
@@ -2278,11 +2332,12 @@ tputc(char *c, int len) {
 
 int
 tresize(int col, int row) {
 
 int
 tresize(int col, int row) {
-       int i, x;
+       int i;
        int minrow = MIN(row, term.row);
        int mincol = MIN(col, term.col);
        int slide = term.c.y - row + 1;
        bool *bp;
        int minrow = MIN(row, term.row);
        int mincol = MIN(col, term.col);
        int slide = term.c.y - row + 1;
        bool *bp;
+       Line *orig;
 
        if(col < 1 || row < 1)
                return 0;
 
        if(col < 1 || row < 1)
                return 0;
@@ -2318,10 +2373,6 @@ tresize(int col, int row) {
                term.dirty[i] = 1;
                term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
                term.alt[i]  = xrealloc(term.alt[i],  col * sizeof(Glyph));
                term.dirty[i] = 1;
                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;
-               }
        }
 
        /* allocate any new rows */
        }
 
        /* allocate any new rows */
@@ -2346,6 +2397,17 @@ tresize(int col, int row) {
        tsetscroll(0, row-1);
        /* make use of the LIMIT in tmoveto */
        tmoveto(term.c.x, term.c.y);
        tsetscroll(0, row-1);
        /* make use of the LIMIT in tmoveto */
        tmoveto(term.c.x, term.c.y);
+       /* Clearing both screens */
+       orig = term.line;
+       do {
+               if(mincol < col && 0 < minrow) {
+                       tclearregion(mincol, 0, col - 1, minrow - 1);
+               }
+               if(0 < col && minrow < row) {
+                       tclearregion(0, minrow, col - 1, row - 1);
+               }
+               tswapscreen();
+       } while(orig != term.line);
 
        return (slide > 0);
 }
 
        return (slide > 0);
 }
@@ -2736,6 +2798,7 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
        FcCharSet *fccharset;
        Colour *fg, *bg, *temp, revfg, revbg;
        XRenderColor colfg, colbg;
        FcCharSet *fccharset;
        Colour *fg, *bg, *temp, revfg, revbg;
        XRenderColor colfg, colbg;
+       Rectangle r;
 
        frcflags = FRC_NORMAL;
 
 
        frcflags = FRC_NORMAL;
 
@@ -2807,6 +2870,9 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
                bg = temp;
        }
 
                bg = temp;
        }
 
+       if(base.mode & ATTR_BLINK && term.mode & MODE_BLINK)
+               fg = bg;
+
        /* Intelligent cleaning up of the borders. */
        if(x == 0) {
                xclear(0, (y == 0)? 0 : winy, borderpx,
        /* Intelligent cleaning up of the borders. */
        if(x == 0) {
                xclear(0, (y == 0)? 0 : winy, borderpx,
@@ -2824,6 +2890,13 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
        /* Clean up the region we want to draw to. */
        XftDrawRect(xw.draw, bg, winx, winy, width, xw.ch);
 
        /* Clean up the region we want to draw to. */
        XftDrawRect(xw.draw, bg, winx, winy, width, xw.ch);
 
+       /* Set the clip region because Xft is sometimes dirty. */
+       r.x = 0;
+       r.y = 0;
+       r.height = xw.ch;
+       r.width = width;
+       XftDrawSetClipRectangles(xw.draw, winx, winy, &r, 1);
+
        fcsets[0] = font->set;
        for(xp = winx; bytelen > 0;) {
                /*
        fcsets[0] = font->set;
        for(xp = winx; bytelen > 0;) {
                /*
@@ -2857,6 +2930,7 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
                                                        (FcChar8 *)u8fs,
                                                        u8fblen);
                                        xp += font->width * u8fl;
                                                        (FcChar8 *)u8fs,
                                                        u8fblen);
                                        xp += font->width * u8fl;
+
                                }
                                break;
                        }
                                }
                                break;
                        }
@@ -2941,28 +3015,26 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
                XftDrawRect(xw.draw, fg, winx, winy + font->ascent + 1,
                                width, 1);
        }
                XftDrawRect(xw.draw, fg, winx, winy + font->ascent + 1,
                                width, 1);
        }
+
+       /* Reset clip to none. */
+       XftDrawSetClip(xw.draw, 0);
 }
 
 void
 xdrawcursor(void) {
        static int oldx = 0, oldy = 0;
        int sl;
 }
 
 void
 xdrawcursor(void) {
        static int oldx = 0, oldy = 0;
        int sl;
-       Glyph g = {{' '}, ATTR_NULL, defaultbg, defaultcs, 0};
+       Glyph g = {{' '}, ATTR_NULL, defaultbg, defaultcs};
 
        LIMIT(oldx, 0, term.col-1);
        LIMIT(oldy, 0, term.row-1);
 
 
        LIMIT(oldx, 0, term.col-1);
        LIMIT(oldy, 0, term.row-1);
 
-       if(term.line[term.c.y][term.c.x].state & GLYPH_SET)
-               memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ);
+       memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ);
 
        /* remove the old cursor */
 
        /* remove the old cursor */
-       if(term.line[oldy][oldx].state & GLYPH_SET) {
-               sl = utf8size(term.line[oldy][oldx].c);
-               xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx,
-                               oldy, 1, sl);
-       } else {
-               xtermclear(oldx, oldy, oldx, oldy);
-       }
+       sl = utf8size(term.line[oldy][oldx].c);
+       xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx,
+                       oldy, 1, sl);
 
        /* draw the new one */
        if(!(IS_SET(MODE_HIDE))) {
 
        /* draw the new one */
        if(!(IS_SET(MODE_HIDE))) {
@@ -3058,25 +3130,22 @@ drawregion(int x1, int y1, int x2, int y2) {
                ic = ib = ox = 0;
                for(x = x1; x < x2; x++) {
                        new = term.line[y][x];
                ic = ib = ox = 0;
                for(x = x1; x < x2; x++) {
                        new = term.line[y][x];
-                       if(ena_sel && *(new.c) && selected(x, y))
+                       if(ena_sel && selected(x, y))
                                new.mode ^= ATTR_REVERSE;
                                new.mode ^= ATTR_REVERSE;
-                       if(ib > 0 && (!(new.state & GLYPH_SET)
-                                       || ATTRCMP(base, new)
+                       if(ib > 0 && (ATTRCMP(base, new)
                                        || ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
                                xdraws(buf, base, ox, y, ic, ib);
                                ic = ib = 0;
                        }
                                        || ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
                                xdraws(buf, base, ox, y, ic, ib);
                                ic = ib = 0;
                        }
-                       if(new.state & GLYPH_SET) {
-                               if(ib == 0) {
-                                       ox = x;
-                                       base = new;
-                               }
-
-                               sl = utf8size(new.c);
-                               memcpy(buf+ib, new.c, sl);
-                               ib += sl;
-                               ++ic;
+                       if(ib == 0) {
+                               ox = x;
+                               base = new;
                        }
                        }
+
+                       sl = utf8size(new.c);
+                       memcpy(buf+ib, new.c, sl);
+                       ib += sl;
+                       ++ic;
                }
                if(ib > 0)
                        xdraws(buf, base, ox, y, ic, ib);
                }
                if(ib > 0)
                        xdraws(buf, base, ox, y, ic, ib);
@@ -3212,7 +3281,8 @@ kpress(XEvent *ev) {
        XKeyEvent *e = &ev->xkey;
        KeySym ksym;
        char xstr[31], buf[32], *customkey, *cp = buf;
        XKeyEvent *e = &ev->xkey;
        KeySym ksym;
        char xstr[31], buf[32], *customkey, *cp = buf;
-       int len;
+       int len, ret;
+       long c;
        Status status;
        Shortcut *bp;
 
        Status status;
        Shortcut *bp;
 
@@ -3233,13 +3303,23 @@ kpress(XEvent *ev) {
        if((customkey = kmap(ksym, e->state))) {
                len = strlen(customkey);
                memcpy(buf, customkey, len);
        if((customkey = kmap(ksym, e->state))) {
                len = strlen(customkey);
                memcpy(buf, customkey, len);
-       /* 2. hardcoded (overrides X lookup) */
+       /* 3. hardcoded (overrides X lookup) */
        } else {
                if(len == 0)
                        return;
 
        } else {
                if(len == 0)
                        return;
 
-               if(len == 1 && e->state & Mod1Mask)
-                       *cp++ = '\033';
+               if(len == 1 && e->state & Mod1Mask) {
+                       if(IS_SET(MODE_8BIT)) {
+                               if(*xstr < 0177) {
+                                       c = *xstr | B7;
+                                       ret = utf8encode(&c, cp);
+                                       cp += ret;
+                                       len = 0;
+                               }
+                       } else {
+                               *cp++ = '\033';
+                       }
+               }
 
                memcpy(cp, xstr, len);
                len = cp - buf + len;
 
                memcpy(cp, xstr, len);
                len = cp - buf + len;
@@ -3300,34 +3380,55 @@ void
 run(void) {
        XEvent ev;
        fd_set rfd;
 run(void) {
        XEvent ev;
        fd_set rfd;
-       int xfd = XConnectionNumber(xw.dpy), xev;
-       struct timeval drawtimeout, *tv = NULL, now, last;
+       int xfd = XConnectionNumber(xw.dpy), xev, blinkset = 0, dodraw = 0;
+       struct timeval drawtimeout, *tv = NULL, now, last, lastblink;
 
 
+       gettimeofday(&lastblink, NULL);
        gettimeofday(&last, NULL);
 
        for(xev = actionfps;;) {
                FD_ZERO(&rfd);
                FD_SET(cmdfd, &rfd);
                FD_SET(xfd, &rfd);
        gettimeofday(&last, NULL);
 
        for(xev = actionfps;;) {
                FD_ZERO(&rfd);
                FD_SET(cmdfd, &rfd);
                FD_SET(xfd, &rfd);
-               if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, tv) < 0) {
+
+               switch(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, tv) < 0) {
+               case -1:
                        if(errno == EINTR)
                                continue;
                        die("select failed: %s\n", SERRNO);
                        if(errno == EINTR)
                                continue;
                        die("select failed: %s\n", SERRNO);
-               }
+               default:
+                       if(FD_ISSET(cmdfd, &rfd)) {
+                               ttyread();
+                               if(blinktimeout) {
+                                       blinkset = tattrset(ATTR_BLINK);
+                                       if(!blinkset && term.mode & ATTR_BLINK)
+                                               term.mode &= ~(MODE_BLINK);
+                               }
+                       }
 
 
+                       if(FD_ISSET(xfd, &rfd))
+                               xev = actionfps;
+                       break;
+               }
                gettimeofday(&now, NULL);
                drawtimeout.tv_sec = 0;
                drawtimeout.tv_usec = (1000/xfps) * 1000;
                tv = &drawtimeout;
 
                gettimeofday(&now, NULL);
                drawtimeout.tv_sec = 0;
                drawtimeout.tv_usec = (1000/xfps) * 1000;
                tv = &drawtimeout;
 
-               if(FD_ISSET(cmdfd, &rfd))
-                       ttyread();
-
-               if(FD_ISSET(xfd, &rfd))
-                       xev = actionfps;
+               dodraw = 0;
+               if(blinktimeout && TIMEDIFF(now, lastblink) > blinktimeout) {
+                       tsetdirtattr(ATTR_BLINK);
+                       term.mode ^= MODE_BLINK;
+                       gettimeofday(&lastblink, NULL);
+                       dodraw = 1;
+               }
+               if(TIMEDIFF(now, last) \
+                               > (xev? (1000/xfps) : (1000/actionfps))) {
+                       dodraw = 1;
+                       last = now;
+               }
 
 
-               if(TIMEDIFF(now, last) > \
-                               (xev ? (1000/xfps) : (1000/actionfps))) {
+               if(dodraw) {
                        while(XPending(xw.dpy)) {
                                XNextEvent(xw.dpy, &ev);
                                if(XFilterEvent(&ev, None))
                        while(XPending(xw.dpy)) {
                                XNextEvent(xw.dpy, &ev);
                                if(XFilterEvent(&ev, None))
@@ -3338,12 +3439,13 @@ run(void) {
 
                        draw();
                        XFlush(xw.dpy);
 
                        draw();
                        XFlush(xw.dpy);
-                       last = now;
 
                        if(xev && !FD_ISSET(xfd, &rfd))
                                xev--;
 
                        if(xev && !FD_ISSET(xfd, &rfd))
                                xev--;
-                       if(!FD_ISSET(cmdfd, &rfd) && !FD_ISSET(xfd, &rfd))
+                       if(!FD_ISSET(cmdfd, &rfd) && !FD_ISSET(xfd, &rfd) \
+                                       && !blinkset) {
                                tv = NULL;
                                tv = NULL;
+                       }
                }
        }
 }
                }
        }
 }