typedef struct {
Glyph attr; /* current char attributes */
- char hidden;
int x;
int y;
} TCursor;
int col; /* nb col */
Line* line; /* screen */
TCursor c; /* cursor */
+ char hidec;
int top; /* top scroll limit */
int bot; /* bottom scroll limit */
int mode; /* terminal mode flags */
typedef struct {
Display* dis;
Window win;
+ Pixmap buf;
int scr;
int w; /* window width */
int h; /* window height */
typedef struct {
unsigned long col[LEN(colorname)];
XFontStruct* font;
+ XFontStruct* bfont;
GC gc;
} DC;
static void tnewline(void);
static void tputc(char);
static void tputs(char*, int);
+static void treset(void);
static void tresize(int, int);
static void tscroll(void);
+static void tscrollup(int);
+static void tscrolldown(int);
static void tsetattr(int*, int);
static void tsetchar(char);
static void tsetscroll(int, int);
static unsigned long xgetcol(const char *);
static void xclear(int, int, int, int);
static void xcursor(int);
-static void xdrawc(int, int, Glyph);
static void xinit(void);
-static void xscroll(void);
static void expose(XEvent *);
-static char * kmap(KeySym);
+static char* kmap(KeySym);
static void kpress(XEvent *);
static void resize(XEvent *);
void
xbell(void) { /* visual bell */
- XRectangle r = { 0, 0, xw.w, xw.h };
+ XRectangle r = { BORDER, BORDER, xw.w, xw.h };
XSetForeground(xw.dis, dc.gc, dc.col[BellCol]);
XFillRectangles(xw.dis, xw.win, dc.gc, &r, 1);
/* usleep(30000); */
}
void
+treset(void) {
+ term.c.attr.mode = ATTR_NULL;
+ term.c.attr.fg = DefaultFG;
+ term.c.attr.bg = DefaultBG;
+ term.c.x = term.c.y = 0;
+ term.hidec = 0;
+ term.top = 0, term.bot = term.row - 1;
+ term.mode = MODE_WRAP;
+ tclearregion(0, 0, term.col-1, term.row-1);
+}
+
+void
tnew(int col, int row) { /* screen size */
term.row = row, term.col = col;
term.top = 0, term.bot = term.row - 1;
term.c.attr.fg = DefaultFG;
term.c.attr.bg = DefaultBG;
term.c.x = term.c.y = 0;
- term.c.hidden = 0;
+ term.hidec = 0;
/* allocate screen */
term.line = calloc(term.row, sizeof(Line));
for(row = 0 ; row < term.row; row++)
term.line[row] = calloc(term.col, sizeof(Glyph));
}
+/* TODO: Replace with scrollup/scolldown */
void
tscroll(void) {
Line temp = term.line[term.top];
int i;
- /* X stuff _before_ the line swapping (results in wrong line index) */
- xscroll();
+
for(i = term.top; i < term.bot; i++)
term.line[i] = term.line[i+1];
memset(temp, 0, sizeof(Glyph) * term.col);
}
void
+tscrolldown (int n) {
+ int i;
+ Line temp;
+
+ LIMIT(n, 0, term.bot-term.top+1);
+
+ for(i = 0; i < n; i++)
+ memset(term.line[term.bot-i], 0, term.col*sizeof(Glyph));
+
+ for(i = term.bot; i >= term.top+n; i--) {
+ temp = term.line[i];
+ term.line[i] = term.line[i-n];
+ term.line[i-n] = temp;
+ }
+}
+
+void
+tscrollup (int n) {
+ int i;
+ Line temp;
+ LIMIT(n, 0, term.bot-term.top+1);
+
+ for(i = 0; i < n; i++)
+ memset(term.line[term.top+i], 0, term.col*sizeof(Glyph));
+
+ for(i = term.top; i <= term.bot-n; i++) {
+ temp = term.line[i];
+ term.line[i] = term.line[i+n];
+ term.line[i+n] = temp;
+ }
+}
+
+void
tnewline(void) {
int y = term.c.y + 1;
if(y > term.bot)
tsetchar(char c) {
term.line[term.c.y][term.c.x] = term.c.attr;
term.line[term.c.y][term.c.x].c = c;
- term.line[term.c.y][term.c.x].state |= GLYPH_SET | GLYPH_DIRTY;
+ term.line[term.c.y][term.c.x].state |= GLYPH_SET;
}
void
tclearregion(int x1, int y1, int x2, int y2) {
- int x, y;
+ int y, temp;
+
+ if(x1 > x2)
+ temp = x1, x1 = x2, x2 = temp;
+ if(y1 > y2)
+ temp = y1, y1 = y2, y2 = temp;
LIMIT(x1, 0, term.col-1);
LIMIT(x2, 0, term.col-1);
LIMIT(y1, 0, term.row-1);
LIMIT(y2, 0, term.row-1);
- /* XXX: could be optimized */
- for(x = x1; x <= x2; x++)
- for(y = y1; y <= y2; y++)
- memset(&term.line[y][x], 0, sizeof(Glyph));
-
- xclear(x1, y1, x2, y2);
+ for(y = y1; y <= y2; y++)
+ memset(&term.line[y][x1], 0, sizeof(Glyph)*(x2-x1+1));
}
void
}
void
-tsetlinestate(int n, int state) {
- int i;
- for(i = 0; i < term.col; i++)
- term.line[n][i].state |= state;
-}
-
-void
tinsertblankline(int n) {
int i;
Line blank;
term.line[i-n] = blank;
/* blank it */
memset(blank, 0, term.col * sizeof(Glyph));
- tsetlinestate(i, GLYPH_DIRTY);
- tsetlinestate(i-n, GLYPH_DIRTY);
}
}
term.line[i+n] = blank;
/* blank it */
memset(blank, 0, term.col * sizeof(Glyph));
- tsetlinestate(i, GLYPH_DIRTY);
- tsetlinestate(i-n, GLYPH_DIRTY);
}
}
case 7:
term.c.attr.mode |= ATTR_REVERSE;
break;
- case 8:
- term.c.hidden = CURSOR_HIDE;
- break;
case 22:
term.c.attr.mode &= ~ATTR_BOLD;
break;
term.c.attr.fg = attr[i] - 30;
else if(BETWEEN(attr[i], 40, 47))
term.c.attr.bg = attr[i] - 40;
+ else
+ fprintf(stderr, "erresc: gfx attr %d unkown\n", attr[i]);
break;
}
}
switch(escseq.mode) {
default:
unknown:
- printf("erresc: unknown sequence -- ");
+ printf("erresc: unknown csi ");
csidump();
/* die(""); */
break;
break;
}
break;
- case 'S': /* XXX: SU -- Scroll <n> line up (faked) */
+ case 'S': /* SU -- Scroll <n> line up */
+ DEFAULT(escseq.arg[0], 1);
+ tscrollup(escseq.arg[0]);
+ break;
+ case 'T': /* SD -- Scroll <n> line down */
+ DEFAULT(escseq.arg[0], 1);
+ tscrolldown(escseq.arg[0]);
+ break;
case 'L': /* IL -- Insert <n> blank lines */
DEFAULT(escseq.arg[0], 1);
tinsertblankline(escseq.arg[0]);
case 12: /* att610 -- Stop blinking cursor (IGNORED) */
break;
case 25:
- term.c.hidden = 1;
+ term.hidec = 1;
break;
case 1048: /* XXX: no alt. screen to erase/save */
case 1049:
case 12: /* att610 -- Start blinking cursor (IGNORED) */
break;
case 25:
- term.c.hidden = 0;
+ term.hidec = 0;
break;
case 1048:
case 1049: /* XXX: no alt. screen to erase/save */
tmoveto(term.c.x+1, term.c.y);
term.esc = 0;
break;
- case 'D':
+ case 'D': /* XXX: CUP (VT100) or IND (VT52) ... */
tmoveto(term.c.x-1, term.c.y);
term.esc = 0;
break;
+ case 'E': /* NEL -- Next line */
+ tnewline();
+ term.esc = 0;
+ break;
+ case 'M': /* RI -- Reverse index */
+ if(term.c.y == term.top)
+ tscrolldown(1);
+ else
+ tmoveto(term.c.x, term.c.y-1);
+ term.esc = 0;
+ break;
+ case 'c': /* RIS -- Reset to inital state */
+ treset();
+ term.esc = 0;
+ break;
case '=': /* DECPAM */
term.mode |= MODE_APPKEYPAD;
term.esc = 0;
term.mode &= ~MODE_APPKEYPAD;
term.esc = 0;
break;
+ case '7':
+ tcursor(CURSOR_SAVE);
+ term.esc = 0;
+ break;
+ case '8':
+ tcursor(CURSOR_LOAD);
+ term.esc = 0;
+ break;
default:
- fprintf(stderr, "erresc: unknown sequence ESC %02X '%c'\n", c, isprint(c)?c:'.');
+ fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n", c, isprint(c)?c:'.');
term.esc = 0;
}
}
void
xclear(int x1, int y1, int x2, int y2) {
- XClearArea(xw.dis, xw.win,
- x1 * xw.cw, y1 * xw.ch,
- (x2-x1+1) * xw.cw, (y2-y1+1) * xw.ch,
- False);
-}
-
-void
-xscroll(void) {
- int srcy = (term.top+1) * xw.ch;
- int dsty = term.top * xw.ch;
- int height = (term.bot-term.top) * xw.ch;
-
- xcursor(CURSOR_HIDE);
- XCopyArea(xw.dis, xw.win, xw.win, dc.gc, 0, srcy, xw.w, height, 0, dsty);
- xclear(0, term.bot, term.col-1, term.bot);
+ XSetForeground(xw.dis, dc.gc, dc.col[DefaultBG]);
+ XFillRectangle(xw.dis, xw.buf, dc.gc,
+ x1 * xw.cw, y1 * xw.ch,
+ (x2-x1+1) * xw.cw, (y2-y1+1) * xw.ch);
}
void
xinit(void) {
- XGCValues values;
- unsigned long valuemask;
XClassHint chint;
XWMHints wmhint;
XSizeHints shint;
die("Can't open display\n");
/* font */
- if(!(dc.font = XLoadQueryFont(xw.dis, FONT)))
- die("Can't load font %s\n", FONT);
+ if(!(dc.font = XLoadQueryFont(xw.dis, FONT)) || !(dc.bfont = XLoadQueryFont(xw.dis, BOLDFONT)))
+ die("Can't load font %s\n", dc.font ? BOLDFONT : FONT);
+ /* XXX: Assuming same size for bold font */
xw.cw = dc.font->max_bounds.rbearing - dc.font->min_bounds.lbearing;
- xw.ch = dc.font->ascent + dc.font->descent + LINESPACE;
+ xw.ch = dc.font->ascent + dc.font->descent;
/* colors */
for(i = 0; i < LEN(colorname); i++)
/* windows */
xw.h = term.row * xw.ch;
xw.w = term.col * xw.cw;
- /* XXX: this BORDER is useless after the first resize, handle it in xdraws() */
xw.win = XCreateSimpleWindow(xw.dis, XRootWindow(xw.dis, xw.scr), 0, 0,
- xw.w, xw.h, BORDER,
+ xw.w + 2*BORDER, xw.h + 2*BORDER, 0,
dc.col[DefaultBG],
dc.col[DefaultBG]);
+ xw.buf = XCreatePixmap(xw.dis, xw.win, xw.w, xw.h, XDefaultDepth(xw.dis, xw.scr));
/* gc */
- values.foreground = XWhitePixel(xw.dis, xw.scr);
- values.font = dc.font->fid;
- valuemask = GCForeground | GCFont;
- dc.gc = XCreateGC(xw.dis, xw.win, valuemask, &values);
+ dc.gc = XCreateGC(xw.dis, xw.win, 0, NULL);
XMapWindow(xw.dis, xw.win);
/* wm stuff */
chint.res_name = TNAME, chint.res_class = TNAME;
wmhint.input = 1, wmhint.flags = InputHint;
shint.height_inc = xw.ch, shint.width_inc = xw.cw;
- shint.height = xw.h, shint.width = xw.w;
+ shint.height = xw.h + 2*BORDER, shint.width = xw.w + 2*BORDER;
shint.flags = PSize | PResizeInc;
XSetWMProperties(xw.dis, xw.win, NULL, NULL, &args[0], 0, &shint, &wmhint, &chint);
XStoreName(xw.dis, xw.win, TNAME);
+ XFillRectangle(xw.dis, xw.buf, dc.gc, 0, 0, xw.w, xw.h);
XSync(xw.dis, 0);
+
}
void
if(base.mode & ATTR_GFX)
for(i = 0; i < len; i++)
s[i] = gfx[s[i]];
-
- XDrawImageString(xw.dis, xw.win, dc.gc, winx, winy, s, len);
+
+ XSetFont(xw.dis, dc.gc, base.mode & ATTR_BOLD ? dc.bfont->fid : dc.font->fid);
+ XDrawImageString(xw.dis, xw.buf, dc.gc, winx, winy, s, len);
if(base.mode & ATTR_UNDERLINE)
- XDrawLine(xw.dis, xw.win, dc.gc, winx, winy+1, winx+width-1, winy+1);
-}
-
-void
-xdrawc(int x, int y, Glyph g) {
- XRectangle r = { x * xw.cw, y * xw.ch, xw.cw, xw.ch };
- unsigned long xfg, xbg;
-
- /* reverse video */
- if(g.mode & ATTR_REVERSE)
- xfg = dc.col[g.bg], xbg = dc.col[g.fg];
- else
- xfg = dc.col[g.fg], xbg = dc.col[g.bg];
- /* background */
- XSetBackground(xw.dis, dc.gc, xbg);
- XSetForeground(xw.dis, dc.gc, xfg);
- XDrawImageString(xw.dis, xw.win, dc.gc, r.x, r.y+dc.font->ascent, &g.c, 1);
+ XDrawLine(xw.dis, xw.buf, dc.gc, winx, winy+1, winx+width-1, winy+1);
}
void
if(term.line[term.c.y][term.c.x].state & GLYPH_SET)
g.c = term.line[term.c.y][term.c.x].c;
+
/* remove the old cursor */
if(term.line[oldy][oldx].state & GLYPH_SET)
- xdrawc(oldx, oldy, term.line[oldy][oldx]);
- else
+ xdraws(&term.line[oldy][oldx].c, term.line[oldy][oldx], oldx, oldy, 1);
+ else
xclear(oldx, oldy, oldx, oldy);
+
/* draw the new one */
if(mode == CURSOR_DRAW) {
- xdrawc(term.c.x, term.c.y, g);
+ xdraws(&g.c, g, term.c.x, term.c.y, 1);
oldx = term.c.x, oldy = term.c.y;
}
}
+
+#ifdef DEBUG
+/* basic drawing routines */
+void
+xdrawc(int x, int y, Glyph g) {
+ XRectangle r = { x * xw.cw, y * xw.ch, xw.cw, xw.ch };
+ XSetBackground(xw.dis, dc.gc, dc.col[g.bg]);
+ XSetForeground(xw.dis, dc.gc, dc.col[g.fg]);
+ XSetFont(xw.dis, dc.gc, g.mode & ATTR_BOLD ? dc.bfont->fid : dc.font->fid);
+ XDrawImageString(xw.dis, xw.buf, dc.gc, r.x, r.y+dc.font->ascent, &g.c, 1);
+}
+
+void
+draw_(int dummy) {
+ int x, y;
+
+ xclear(0, 0, term.col-1, term.row-1);
+ for(y = 0; y < term.row; y++)
+ for(x = 0; x < term.col; x++)
+ if(term.line[y][x].state & GLYPH_SET)
+ xdrawc(x, y, term.line[y][x]);
+
+ if(!term.hidec)
+ xcursor(CURSOR_DRAW);
+ XCopyArea(xw.dis, xw.buf, xw.win, dc.gc, 0, 0, xw.w, xw.h, BORDER, BORDER);
+ XFlush(xw.dis);
+}
+#endif
+
void
draw(int redraw_all) {
int i, x, y, ox;
}
xdraws(buf, base, ox, y, i);
}
- if(!term.c.hidden)
- xcursor(CURSOR_DRAW);
+ xcursor(term.hidec ? CURSOR_HIDE : CURSOR_DRAW);
+ XCopyArea(xw.dis, xw.buf, xw.win, dc.gc, 0, 0, xw.w, xw.h, BORDER, BORDER);
+ XFlush(xw.dis);
}
void
break;
case XK_Insert:
if(shift)
- /* XXX: paste X clipboard */;
+ draw(1), puts("draw!")/* XXX: paste X clipboard */;
break;
default:
fprintf(stderr, "errkey: %d\n", (int)ksym);
ttyresize(col, row);
xw.w = e->xconfigure.width;
xw.h = e->xconfigure.height;
+ XFreePixmap(xw.dis, xw.buf);
+ xw.buf = XCreatePixmap(xw.dis, xw.win, xw.w, xw.h, XDefaultDepth(xw.dis, xw.scr));
draw(SCREEN_REDRAW);
}
}
running = 1;
XSelectInput(xw.dis, xw.win, ExposureMask | KeyPressMask | StructureNotifyMask);
- XResizeWindow(xw.dis, xw.win, xw.w , xw.h); /* fix resize bug in wmii (?) */
+ XResizeWindow(xw.dis, xw.win, xw.w+2*BORDER, xw.h+2*BORDER); /* fix resize bug in wmii (?) */
while(running) {
FD_ZERO(&rfd);
Got questions, comments, patches, etc.? Contact Jason Woofenden