示例#1
0
/*
 * moves the cursor left n, no wrap around
 */
void
CursorBack(XtermWidget xw, int n)
{
#define WRAP_MASK (REVERSEWRAP | WRAPAROUND)
    TScreen *screen = TScreenOf(xw);
    int offset, in_row, length, rev;
    int left = ScrnLeftMargin(xw);
    int before = screen->cur_col;

    if ((rev = (xw->flags & WRAP_MASK) == WRAP_MASK) != 0
	&& screen->do_wrap) {
	n--;
    }

    /* if the cursor is already before the left-margin, we have to let it go */
    if (before < left)
	left = 0;

    if ((screen->cur_col -= n) < left) {
	if (rev) {
	    in_row = ScrnRightMargin(xw) - left + 1;
	    offset = (in_row * screen->cur_row) + screen->cur_col - left;
	    if (offset < 0) {
		length = in_row * MaxRows(screen);
		offset += ((-offset) / length + 1) * length;
	    }
	    set_cur_row(screen, (offset / in_row));
	    set_cur_col(screen, (offset % in_row) + left);
	    do_xevents();
	} else {
	    set_cur_col(screen, left);
	}
    }
    ResetWrap(screen);
}
示例#2
0
static void
repaint_line(XtermWidget xw, unsigned newChrSet)
{
    TScreen *screen = TScreenOf(xw);
    LineData *ld;
    int curcol = screen->cur_col;
    int currow = screen->cur_row;
    int width = MaxCols(screen);
    unsigned len = (unsigned) width;

    assert(width > 0);

    /*
     * Ignore repetition.
     */
    if (!IsLeftRightMode(xw)
	&& (ld = getLineData(screen, currow)) != 0) {
	unsigned oldChrSet = GetLineDblCS(ld);

	if (oldChrSet != newChrSet) {
	    TRACE(("repaint_line(%2d,%2d) (%s -> %s)\n", currow, screen->cur_col,
		   visibleDblChrset(oldChrSet),
		   visibleDblChrset(newChrSet)));
	    HideCursor();

	    /* If switching from single-width, keep the cursor in the visible part
	     * of the line.
	     */
	    if (CSET_DOUBLE(newChrSet)) {
		width /= 2;
		if (curcol > width)
		    curcol = width;
	    }

	    /*
	     * ScrnRefresh won't paint blanks for us if we're switching between a
	     * single-size and double-size font.  So we paint our own.
	     */
	    ClearCurBackground(xw,
			       currow,
			       0,
			       1,
			       len,
			       (unsigned) LineFontWidth(screen, ld));

	    SetLineDblCS(ld, newChrSet);

	    set_cur_col(screen, 0);
	    ScrnUpdate(xw, currow, 0, 1, (int) len, True);
	    set_cur_col(screen, curcol);
	}
    }
}
示例#3
0
/*
 * Moves the cursor to the specified position, checking for bounds.
 * (this includes scrolling regions)
 * The origin is considered to be 0, 0 for this procedure.
 */
void
CursorSet(TScreen * screen, int row, int col, unsigned flags)
{
    int use_row = row;
    int max_row;

    col = (col < 0 ? 0 : col);
    set_cur_col(screen, (col <= screen->max_col ? col : screen->max_col));
    max_row = screen->max_row;
    if (flags & ORIGIN) {
	use_row += screen->top_marg;
	max_row = screen->bot_marg;
    }
    use_row = (use_row < 0 ? 0 : use_row);
    set_cur_row(screen, (use_row <= max_row ? use_row : max_row));
    screen->do_wrap = 0;

    TRACE(("CursorSet(%d,%d) margins [%d..%d] -> %d,%d %s\n",
	   row, col,
	   screen->top_marg,
	   screen->bot_marg,
	   screen->cur_row,
	   screen->cur_col,
	   (flags & ORIGIN ? "origin" : "normal")));
}
示例#4
0
/*
 * Moves the cursor to the specified position, checking for bounds.
 * (this includes scrolling regions)
 * The origin is considered to be 0, 0 for this procedure.
 */
void
CursorSet(TScreen * screen, int row, int col, unsigned flags)
{
    int use_row = row;
    int use_col = col;
    int max_col = screen->max_col;
    int max_row = screen->max_row;

    if (flags & ORIGIN) {
	use_col += screen->lft_marg;
	max_col = screen->rgt_marg;
    }
    use_col = (use_col < 0 ? 0 : use_col);
    set_cur_col(screen, (use_col <= max_col ? use_col : max_col));

    if (flags & ORIGIN) {
	use_row += screen->top_marg;
	max_row = screen->bot_marg;
    }
    use_row = (use_row < 0 ? 0 : use_row);
    set_cur_row(screen, (use_row <= max_row ? use_row : max_row));

    ResetWrap(screen);

    TRACE(("CursorSet(%d,%d) margins V[%d..%d] H[%d..%d] -> %d,%d %s\n",
	   row, col,
	   screen->top_marg,
	   screen->bot_marg,
	   screen->lft_marg,
	   screen->rgt_marg,
	   screen->cur_row,
	   screen->cur_col,
	   (flags & ORIGIN ? "origin" : "normal")));
}
示例#5
0
文件: tabs.c 项目: narenas/nx-libs
/*
 * Tab to the previous stop, returning true if the cursor moved
 */
Bool
TabToPrevStop(TScreen * screen)
{
    int saved_column = screen->cur_col;

    set_cur_col(screen, TabPrev(term->tabs, screen->cur_col));

    return (screen->cur_col < saved_column);
}
示例#6
0
文件: tabs.c 项目: mullikine/xterm278
/*
 * Tab to the previous stop, returning true if the cursor moved
 */
Bool
TabToPrevStop(XtermWidget xw)
{
    TScreen *screen = TScreenOf(xw);
    int saved_column = screen->cur_col;

    set_cur_col(screen, TabPrev(xw->tabs, screen->cur_col));

    return (screen->cur_col < saved_column);
}
示例#7
0
/*
 * moves the cursor forward n, no wraparound
 */
void
CursorForward(TScreen * screen, int n)
{
    int next = screen->cur_col + n;
    int max = CurMaxCol(screen, screen->cur_row);

    if (next > max)
	next = max;

    set_cur_col(screen, next);
    screen->do_wrap = 0;
}
示例#8
0
文件: tabs.c 项目: narenas/nx-libs
/*
 * Tab to the next stop, returning true if the cursor moved
 */
Bool
TabToNextStop(TScreen * screen)
{
    int saved_column = screen->cur_col;
    int next = TabNext(screen, term->tabs, screen->cur_col);
    int max = CurMaxCol(screen, screen->cur_row);

    if (next > max)
        next = max;
    set_cur_col(screen, next);

    return (screen->cur_col > saved_column);
}
示例#9
0
/*
 * moves the cursor left n, no wrap around
 */
void
CursorBack(TScreen * screen, int n)
{
    int i, j, k, rev;

    if ((rev = (term->flags & (REVERSEWRAP | WRAPAROUND)) ==
	 (REVERSEWRAP | WRAPAROUND)) != 0
	&& screen->do_wrap)
	n--;
    if ((screen->cur_col -= n) < 0) {
	if (rev) {
	    if ((i = ((j = MaxCols(screen))
		      * screen->cur_row) + screen->cur_col) < 0) {
		k = j * MaxRows(screen);
		i += ((-i) / k + 1) * k;
	    }
	    set_cur_row(screen, i / j);
	    set_cur_col(screen, i % j);
	} else
	    set_cur_col(screen, 0);
    }
    screen->do_wrap = 0;
}
示例#10
0
文件: tabs.c 项目: narenas/nx-libs
/*
 * returns the column of the next tabstop
 * (or MAX_TABS - 1 if there are no more).
 * A tabstop at col is ignored.
 */
static int
TabNext(TScreen * screen, Tabs tabs, int col)
{
    if (screen->curses && screen->do_wrap && (term->flags & WRAPAROUND)) {
        xtermIndex(screen, 1);
        set_cur_col(screen, 0);
        col = screen->do_wrap = 0;
    }
    for (++col; col < MAX_TABS; ++col)
        if (TST_TAB(tabs, col))
            return (col);

    return (MAX_TABS - 1);
}
示例#11
0
文件: tabs.c 项目: mullikine/xterm278
/*
 * Tab to the next stop, returning true if the cursor moved
 */
Bool
TabToNextStop(XtermWidget xw)
{
    TScreen *screen = TScreenOf(xw);
    int saved_column = screen->cur_col;
    int next = TabNext(xw, xw->tabs, screen->cur_col);
    int max = LineMaxCol(screen, getLineData(screen, screen->cur_row));

    if (next > max)
	next = max;
    set_cur_col(screen, next);

    return (screen->cur_col > saved_column);
}
示例#12
0
/*
 * Tab to the previous stop, returning true if the cursor moved
 */
Bool
TabToPrevStop(XtermWidget xw)
{
    TScreen *screen = TScreenOf(xw);
    int saved_column = screen->cur_col;
    int next_column = TabPrev(xw->tabs, screen->cur_col);

    if (xw->flags & ORIGIN) {
        int left = ScrnLeftMargin(xw);
        if (next_column < left)
            next_column = left;
    }

    set_cur_col(screen, next_column);

    return (screen->cur_col < saved_column);
}
示例#13
0
/*
 * returns the column of the next tabstop
 * (or MAX_TABS - 1 if there are no more).
 * A tabstop at col is ignored.
 */
static int
TabNext(XtermWidget xw, Tabs tabs, int col)
{
    TScreen *screen = TScreenOf(xw);

    if (screen->curses && screen->do_wrap && (xw->flags & WRAPAROUND)) {
        xtermIndex(xw, 1);
        set_cur_col(screen, 0);
        col = 0;
        screen->do_wrap = False;
    }
    for (++col; col < MAX_TABS; ++col)
        if (TST_TAB(tabs, col))
            return (col);

    return (MAX_TABS - 1);
}
示例#14
0
/*
 * Moves Cursor To First Column In Line
 * (Note: xterm doesn't implement SLH, SLL which would affect use of this)
 */
void
CarriageReturn(XtermWidget xw)
{
    TScreen *screen = TScreenOf(xw);
    int left = ScrnLeftMargin(xw);
    int col;

    if (xw->flags & ORIGIN) {
	col = left;
    } else if (screen->cur_col >= left) {
	col = left;
    } else {
	/*
	 * If origin-mode is not active, it is possible to use cursor
	 * addressing outside the margins.  In that case we will go to the
	 * first column rather than following the margin.
	 */
	col = 0;
    }

    set_cur_col(screen, col);
    ResetWrap(screen);
    do_xevents();
}
示例#15
0
/*
 * moves the cursor forward n, no wraparound
 */
void
CursorForward(XtermWidget xw, int n)
{
    TScreen *screen = TScreenOf(xw);
#if OPT_DEC_CHRSET
    LineData *ld = getLineData(screen, screen->cur_row);
#endif
    int next = screen->cur_col + n;
    int max;

    if (IsLeftRightMode(xw)) {
	max = screen->rgt_marg;
	if (screen->cur_col > max)
	    max = screen->max_col;
    } else {
	max = LineMaxCol(screen, ld);
    }

    if (next > max)
	next = max;

    set_cur_col(screen, next);
    ResetWrap(screen);
}
示例#16
0
/*
 * Interpret sixel graphics sequences.
 *
 * Resources:
 *  http://en.wikipedia.org/wiki/Sixel
 *  http://vt100.net/docs/vt3xx-gp/chapter14.html
 *  ftp://ftp.cs.utk.edu/pub/shuford/terminal/sixel_graphics_news.txt
 *  ftp://ftp.cs.utk.edu/pub/shuford/terminal/all_about_sixels.txt
 */
void
parse_sixel(XtermWidget xw, ANSI *params, char const *string)
{
    TScreen *screen = TScreenOf(xw);
    Graphic *graphic;
    SixelContext context;
    Char ch;

    switch (screen->terminal_id) {
    case 240:
    case 241:
    case 330:
    case 340:
	context.aspect_vertical = 2;
	context.aspect_horizontal = 1;
	break;
    case 382:
	context.aspect_vertical = 1;
	context.aspect_horizontal = 1;
	break;
    default:
	context.aspect_vertical = 2;
	context.aspect_horizontal = 1;
	break;
    }

    context.declared_width = 0;
    context.declared_height = 0;

    context.row = 0;
    context.col = 0;

    /* default isn't white on the VT240, but not sure what it is */
    context.current_register = 3;	/* FIXME: using green, but not sure what it should be */

    if (xw->keyboard.flags & MODE_DECSDM) {
	TRACE(("sixel scrolling enabled: inline positioning for graphic at %d,%d\n",
	       screen->cur_row, screen->cur_col));
	graphic = get_new_graphic(xw, screen->cur_row, screen->cur_col, 0U);
    } else {
	TRACE(("sixel scrolling disabled: inline positioning for graphic at %d,%d\n",
	       0, 0));
	graphic = get_new_graphic(xw, 0, 0, 0U);
    }

    {
	int Pmacro = params->a_param[0];
	int Pbgmode = params->a_param[1];
	int Phgrid = params->a_param[2];
	int Pan = params->a_param[3];
	int Pad = params->a_param[4];
	int Ph = params->a_param[5];
	int Pv = params->a_param[6];

	(void) Phgrid;

	TRACE(("sixel bitmap graphics sequence: params=%d (Pmacro=%d Pbgmode=%d Phgrid=%d) scroll_amt=%d\n",
	       params->a_nparam,
	       Pmacro,
	       Pbgmode,
	       Phgrid,
	       screen->scroll_amt));

	switch (params->a_nparam) {
	case 7:
	    if (Pan == 0 || Pad == 0) {
		TRACE(("DATA_ERROR: invalid raster ratio %d/%d\n", Pan, Pad));
		return;
	    }
	    context.aspect_vertical = Pan;
	    context.aspect_horizontal = Pad;

	    if (Ph == 0 || Pv == 0) {
		TRACE(("DATA_ERROR: raster image dimensions are invalid %dx%d\n",
		       Ph, Pv));
		return;
	    }
	    if (Ph > graphic->max_width || Pv > graphic->max_height) {
		TRACE(("DATA_ERROR: raster image dimensions are too large %dx%d\n",
		       Ph, Pv));
		return;
	    }
	    context.declared_width = Ph;
	    context.declared_height = Pv;
	    if (context.declared_width > graphic->actual_width) {
		graphic->actual_width = context.declared_width;
	    }
	    if (context.declared_height > graphic->actual_height) {
		graphic->actual_height = context.declared_height;
	    }
	    break;
	case 3:
	case 2:
	case 1:
	    switch (Pmacro) {
	    case 0:
		/* keep default aspect settings */
		break;
	    case 1:
	    case 5:
	    case 6:
		context.aspect_vertical = 2;
		context.aspect_horizontal = 1;
		break;
	    case 2:
		context.aspect_vertical = 5;
		context.aspect_horizontal = 1;
		break;
	    case 3:
	    case 4:
		context.aspect_vertical = 3;
		context.aspect_horizontal = 1;
		break;
	    case 7:
	    case 8:
	    case 9:
		context.aspect_vertical = 1;
		context.aspect_horizontal = 1;
		break;
	    default:
		TRACE(("DATA_ERROR: unknown sixel macro mode parameter\n"));
		return;
	    }
	    break;
	case 0:
	    break;
	default:
	    TRACE(("DATA_ERROR: unexpected parameter count (found %d)\n", params->a_nparam));
	    return;
	}

	if (Pbgmode == 1) {
	    context.background = COLOR_HOLE;
	} else {
	    /* FIXME: is the default background register always zero?  what about in light background mode? */
	    context.background = 0;
	}

	/* Ignore the grid parameter because it seems only printers paid attention to it.
	 * The VT3xx was always 0.0195 cm.
	 */
    }

    update_sixel_aspect(&context, graphic);

    for (;;) {
	ch = CharOf(*string);
	if (ch == '\0')
	    break;

	if (ch >= 0x3f && ch <= 0x7e) {
	    int sixel = ch - 0x3f;
	    TRACE(("sixel=%x (%c)\n", sixel, (char) ch));
	    if (!graphic->valid) {
		init_sixel_background(graphic, &context);
		graphic->valid = 1;
	    }
	    set_sixel(graphic, &context, sixel);
	    context.col++;
	} else if (ch == '$') {	/* DECGCR */
	    /* ignore DECCRNLM in sixel mode */
	    TRACE(("sixel CR\n"));
	    context.col = 0;
	} else if (ch == '-') {	/* DECGNL */
	    int scroll_lines;
	    TRACE(("sixel NL\n"));
	    scroll_lines = 0;
	    while (graphic->charrow - scroll_lines +
		   (((context.row + 6) * graphic->pixh
		     + FontHeight(screen) - 1)
		    / FontHeight(screen)) > screen->bot_marg) {
		scroll_lines++;
	    }
	    context.col = 0;
	    context.row += 6;
	    /* If we hit the bottom margin on the graphics page (well, we just use the
	     * text margin for now), the behavior is to either scroll or to discard
	     * the remainder of the graphic depending on this setting.
	     */
	    if (scroll_lines > 0) {
		if (xw->keyboard.flags & MODE_DECSDM) {
		    Display *display = screen->display;
		    xtermScroll(xw, scroll_lines);
		    XSync(display, False);
		    TRACE(("graphic scrolled the screen %d lines. screen->scroll_amt=%d screen->topline=%d, now starting row is %d\n",
			   scroll_lines,
			   screen->scroll_amt,
			   screen->topline,
			   graphic->charrow));
		} else {
		    break;
		}
	    }
	} else if (ch == '!') {	/* DECGRI */
	    int Pcount;
	    const char *start;
	    int sixel;
	    int i;

	    start = ++string;
	    for (;;) {
		ch = CharOf(*string);
		if (ch != '0' &&
		    ch != '1' &&
		    ch != '2' &&
		    ch != '3' &&
		    ch != '4' &&
		    ch != '5' &&
		    ch != '6' &&
		    ch != '7' &&
		    ch != '8' &&
		    ch != '9' &&
		    ch != ' ' &&
		    ch != '\r' &&
		    ch != '\n')
		    break;
		string++;
	    }
	    if (ch == '\0') {
		TRACE(("DATA_ERROR: sixel data string terminated in the middle of a repeat operator\n"));
		return;
	    }
	    if (string == start) {
		TRACE(("DATA_ERROR: sixel data string contains a repeat operator with empty count\n"));
		return;
	    }
	    Pcount = atoi(start);
	    sixel = ch - 0x3f;
	    TRACE(("sixel repeat operator: sixel=%d (%c), count=%d\n",
		   sixel, (char) ch, Pcount));
	    if (!graphic->valid) {
		init_sixel_background(graphic, &context);
		graphic->valid = 1;
	    }
	    for (i = 0; i < Pcount; i++) {
		set_sixel(graphic, &context, sixel);
		context.col++;
	    }
	} else if (ch == '#') {	/* DECGCI */
	    ANSI color_params;
	    int Pregister;

	    parse_prefixedtype_params(&color_params, &string);
	    Pregister = color_params.a_param[0];
	    if (Pregister >= (int) graphic->valid_registers) {
		TRACE(("DATA_WARNING: sixel color operator uses out-of-range register %d\n", Pregister));
		/* FIXME: supposedly the DEC terminals wrapped register indicies -- verify */
		while (Pregister >= (int) graphic->valid_registers)
		    Pregister -= (int) graphic->valid_registers;
		TRACE(("DATA_WARNING: converted to %d\n", Pregister));
	    }

	    if (color_params.a_nparam > 2 && color_params.a_nparam <= 5) {
		int Pspace = color_params.a_param[1];
		int Pc1 = color_params.a_param[2];
		int Pc2 = color_params.a_param[3];
		int Pc3 = color_params.a_param[4];
		short r, g, b;

		TRACE(("sixel set color register=%d space=%d color=[%d,%d,%d] (nparams=%d)\n",
		       Pregister, Pspace, Pc1, Pc2, Pc3, color_params.a_nparam));

		switch (Pspace) {
		case 1:	/* HLS */
		    if (Pc1 > 360 || Pc2 > 100 || Pc3 > 100) {
			TRACE(("DATA_ERROR: sixel set color operator uses out-of-range HLS color coordinates %d,%d,%d\n",
			       Pc1, Pc2, Pc3));
			return;
		    }
		    hls2rgb(Pc1, Pc2, Pc3, &r, &g, &b);
		    break;
		case 2:	/* RGB */
		    if (Pc1 > 100 || Pc2 > 100 || Pc3 > 100) {
			TRACE(("DATA_ERROR: sixel set color operator uses out-of-range RGB color coordinates %d,%d,%d\n",
			       Pc1, Pc2, Pc3));
			return;
		    }
		    r = (short) Pc1;
		    g = (short) Pc2;
		    b = (short) Pc3;
		    break;
		default:	/* unknown */
		    TRACE(("DATA_ERROR: sixel set color operator uses unknown color space %d\n", Pspace));
		    return;
		}
		update_color_register(graphic,
				      (RegisterNum) Pregister,
				      r, g, b);
	    } else if (color_params.a_nparam == 1) {
		TRACE(("sixel switch to color register=%d (nparams=%d)\n",
		       Pregister, color_params.a_nparam));
		context.current_register = (RegisterNum) Pregister;
	    } else {
		TRACE(("DATA_ERROR: sixel switch color operator with unexpected parameter count (nparams=%d)\n", color_params.a_nparam));
		return;
	    }
	    continue;
	} else if (ch == '"') /* DECGRA */  {
	    ANSI raster_params;

	    parse_prefixedtype_params(&raster_params, &string);
	    if (raster_params.a_nparam < 2) {
		TRACE(("DATA_ERROR: sixel raster attribute operator with incomplete parameters (found %d, expected 2 or 4)\n", raster_params.a_nparam));
		return;
	    } {
		int Pan = raster_params.a_param[0];
		int Pad = raster_params.a_param[1];
		TRACE(("sixel raster attribute with h:w=%d:%d\n", Pan, Pad));
		if (Pan == 0 || Pad == 0) {
		    TRACE(("DATA_ERROR: invalid raster ratio %d/%d\n", Pan, Pad));
		    return;
		}
		context.aspect_vertical = Pan;
		context.aspect_horizontal = Pad;
		update_sixel_aspect(&context, graphic);
	    }

	    if (raster_params.a_nparam >= 4) {
		int Ph = raster_params.a_param[2];
		int Pv = raster_params.a_param[3];

		TRACE(("sixel raster attribute with h=%d v=%d\n", Ph, Pv));
		if (Ph == 0 || Pv == 0) {
		    TRACE(("DATA_ERROR: raster image dimensions are invalid %dx%d\n",
			   Ph, Pv));
		    return;
		}
		if (Ph > graphic->max_width || Pv > graphic->max_height) {
		    TRACE(("DATA_ERROR: raster image dimensions are too large %dx%d\n",
			   Ph, Pv));
		    return;
		}
		context.declared_width = Ph;
		context.declared_height = Pv;
		if (context.declared_width > graphic->actual_width) {
		    graphic->actual_width = context.declared_width;
		}
		if (context.declared_height > graphic->actual_height) {
		    graphic->actual_height = context.declared_height;
		}
	    }

	    continue;
	} else if (ch == ' ' || ch == '\r' || ch == '\n') {
	    /* EMPTY */ ;
	} else {
	    TRACE(("DATA_ERROR: unknown sixel command %04x (%c)\n",
		   (int) ch, ch));
	}

	string++;
    }

    /* update the screen */
    if (screen->scroll_amt)
	FlushScroll(xw);

    if (xw->keyboard.flags & MODE_DECSDM) {
	int new_row, new_col;

	if (screen->sixel_scrolls_right) {
	    new_row = (graphic->charrow
		       + (((graphic->actual_height * graphic->pixh)
			   + FontHeight(screen) - 1)
			  / FontHeight(screen))
		       - 1);
	    new_col = (graphic->charcol
		       + (((graphic->actual_width * graphic->pixw)
			   + FontWidth(screen) - 1)
			  / FontWidth(screen)));
	} else {
	    /* FIXME: At least of the VT382 the vertical position appears to be
	     * truncated (rounded toward zero after converting to character row.
	     * This code rounds up, which seems more useful, but it would be
	     * better to be compatible.  Verify this is true on a VT3[34]0 as
	     * well.
	     */
	    new_row = (graphic->charrow
		       + (((graphic->actual_height * graphic->pixh)
			   + FontHeight(screen) - 1)
			  / FontHeight(screen)));
	    new_col = 0;
	}

	TRACE(("setting text position after %dx%d graphic starting on row=%d col=%d: cursor new_row=%d new_col=%d\n",
	       graphic->actual_width * graphic->pixw,
	       graphic->actual_height * graphic->pixh,
	       graphic->charrow,
	       graphic->charcol,
	       new_row, new_col));

	if (new_col > screen->rgt_marg) {
	    new_col = screen->lft_marg;
	    new_row++;
	    TRACE(("column past left margin, overriding to row=%d col=%d\n",
		   new_row, new_col));
	}

	while (new_row > screen->bot_marg) {
	    xtermScroll(xw, 1);
	    new_row--;
	    TRACE(("bottom row was past screen.  new start row=%d, cursor row=%d\n",
		   graphic->charrow, new_row));
	}

	if (new_row < 0) {
	    TRACE(("new row is going to be negative (%d)!", new_row));	/* FIXME: this was triggering, now it isn't */
	    goto finis;
	}
	set_cur_row(screen, new_row);
	set_cur_col(screen, new_col <= screen->rgt_marg ? new_col : screen->rgt_marg);
    }

  finis:
    refresh_modified_displayed_graphics(screen);

    TRACE(("DONE successfully parsed sixel data\n"));
    dump_graphic(graphic);
}
示例#17
0
/*
 * Moves Cursor To First Column In Line
 * (Note: xterm doesn't implement SLH, SLL which would affect use of this)
 */
void
CarriageReturn(TScreen * screen)
{
    set_cur_col(screen, 0);
    screen->do_wrap = 0;
}