Example #1
0
void
multiplot_start()
{
    TBOOLEAN set_spacing = FALSE;
    TBOOLEAN set_margins = FALSE;

    c_token++;

    /* Only a few options are possible if we are already in multiplot mode */
    /* So far we have "next".  Maybe also "previous", "clear"? */
    if (multiplot) {
	if (equals(c_token, "next")) {
	    c_token++;
	    if (!mp_layout.auto_layout)
		int_error(c_token, "only valid inside an auto-layout multiplot");
	    multiplot_next();
	    return;
	} else if (almost_equals(c_token, "prev$ious")) {
	    c_token++;
	    if (!mp_layout.auto_layout)
		int_error(c_token, "only valid inside an auto-layout multiplot");
	    multiplot_previous();
	    return;
	} else {
	    term_end_multiplot();
	}
    }

    /* FIXME: more options should be reset/initialized each time */
    mp_layout.auto_layout = FALSE;
    mp_layout.auto_layout_margins = FALSE;
    mp_layout.current_panel = 0;
    mp_layout.title.noenhanced = FALSE;
    free(mp_layout.title.text);
    mp_layout.title.text = NULL;
    free(mp_layout.title.font);
    mp_layout.title.font = NULL;

    /* Parse options */
    while (!END_OF_COMMAND) {

	if (almost_equals(c_token, "ti$tle")) {
	    c_token++;
	    mp_layout.title.text = try_to_get_string();
 	    continue;
       }

       if (equals(c_token, "font")) {
	    c_token++;
	    mp_layout.title.font = try_to_get_string();
	    continue;
	}

        if (almost_equals(c_token,"enh$anced")) {
            mp_layout.title.noenhanced = FALSE;
            c_token++;
            continue;
        }

        if (almost_equals(c_token,"noenh$anced")) {
            mp_layout.title.noenhanced = TRUE;
            c_token++;
            continue;
        }

	if (almost_equals(c_token, "lay$out")) {
	    if (mp_layout.auto_layout)
		int_error(c_token, "too many layout commands");
	    else
		mp_layout.auto_layout = TRUE;

	    c_token++;
	    if (END_OF_COMMAND) {
		int_error(c_token,"expecting '<num_cols>,<num_rows>'");
	    }

	    /* read row,col */
	    mp_layout.num_rows = int_expression();
	    if (END_OF_COMMAND || !equals(c_token,",") )
		int_error(c_token, "expecting ', <num_cols>'");

	    c_token++;
	    if (END_OF_COMMAND)
		int_error(c_token, "expecting <num_cols>");
	    mp_layout.num_cols = int_expression();

	    /* remember current values of the plot size and the margins */
	    mp_layout.prev_xsize = xsize;
	    mp_layout.prev_ysize = ysize;
	    mp_layout.prev_xoffset = xoffset;
	    mp_layout.prev_yoffset = yoffset;
	    mp_layout.prev_lmargin = lmargin;
	    mp_layout.prev_rmargin = rmargin;
	    mp_layout.prev_bmargin = bmargin;
	    mp_layout.prev_tmargin = tmargin;

	    mp_layout.act_row = 0;
	    mp_layout.act_col = 0;

	    continue;
	}

	/* The remaining options are only valid for auto-layout mode */
	if (!mp_layout.auto_layout)
	    int_error(c_token, "only valid in the context of an auto-layout command");

	switch(lookup_table(&set_multiplot_tbl[0],c_token)) {
	    case S_MULTIPLOT_COLUMNSFIRST:
		mp_layout.row_major = TRUE;
		c_token++;
		break;
	    case S_MULTIPLOT_ROWSFIRST:
		mp_layout.row_major = FALSE;
		c_token++;
		break;
	    case S_MULTIPLOT_DOWNWARDS:
		mp_layout.downwards = TRUE;
		c_token++;
		break;
	    case S_MULTIPLOT_UPWARDS:
		mp_layout.downwards = FALSE;
		c_token++;
		break;
	    case S_MULTIPLOT_SCALE:
		c_token++;
		mp_layout.xscale = real_expression();
		mp_layout.yscale = mp_layout.xscale;
		if (!END_OF_COMMAND && equals(c_token,",") ) {
		    c_token++;
		    if (END_OF_COMMAND) {
			int_error(c_token, "expecting <yscale>");
		    }
		    mp_layout.yscale = real_expression();
		}
		break;
	    case S_MULTIPLOT_OFFSET:
		c_token++;
		mp_layout.xoffset = real_expression();
		mp_layout.yoffset = mp_layout.xoffset;
		if (!END_OF_COMMAND && equals(c_token,",") ) {
		    c_token++;
		    if (END_OF_COMMAND) {
			int_error(c_token, "expecting <yoffset>");
		    }
		    mp_layout.yoffset = real_expression();
		}
		break;
	    case S_MULTIPLOT_MARGINS:
		c_token++;
		if (END_OF_COMMAND)
		    int_error(c_token,"expecting '<left>,<right>,<bottom>,<top>'");
		
		mp_layout.lmargin.scalex = screen;
		mp_layout_set_margin_or_spacing(&(mp_layout.lmargin));
		if (!END_OF_COMMAND && equals(c_token,",") ) {
		    c_token++;
		    if (END_OF_COMMAND)
			int_error(c_token, "expecting <right>");

		    mp_layout.rmargin.scalex = mp_layout.lmargin.scalex;
		    mp_layout_set_margin_or_spacing(&(mp_layout.rmargin));
		} else {
		    int_error(c_token, "expecting <right>");
		}
		if (!END_OF_COMMAND && equals(c_token,",") ) {
		    c_token++;
		    if (END_OF_COMMAND)
			int_error(c_token, "expecting <top>");

		    mp_layout.bmargin.scalex = mp_layout.rmargin.scalex;
		    mp_layout_set_margin_or_spacing(&(mp_layout.bmargin));
		} else {
		    int_error(c_token, "expecting <bottom>");
		}
		if (!END_OF_COMMAND && equals(c_token,",") ) {
		    c_token++;
		    if (END_OF_COMMAND)
			int_error(c_token, "expecting <bottom>");

		    mp_layout.tmargin.scalex = mp_layout.bmargin.scalex;
		    mp_layout_set_margin_or_spacing(&(mp_layout.tmargin));
		} else {
		    int_error(c_token, "expection <top>");
		}
		set_margins = TRUE;
		break;
	    case S_MULTIPLOT_SPACING:
		c_token++;
		if (END_OF_COMMAND)
		    int_error(c_token,"expecting '<xspacing>,<yspacing>'");
		mp_layout.xspacing.scalex = screen;
		mp_layout_set_margin_or_spacing(&(mp_layout.xspacing));
		mp_layout.yspacing = mp_layout.xspacing;

		if (!END_OF_COMMAND && equals(c_token, ",")) {
		    c_token++;
		    if (END_OF_COMMAND)
			int_error(c_token, "expecting <yspacing>");
		    mp_layout_set_margin_or_spacing(&(mp_layout.yspacing));
		}
		set_spacing = TRUE;
		break;
	    default:
		int_error(c_token,"invalid or duplicate option");
		break;
	}
    }

    if (set_spacing || set_margins) {
	if (set_spacing && set_margins) {
	    if (mp_layout.lmargin.x >= 0 && mp_layout.rmargin.x >= 0 
	    &&  mp_layout.tmargin.x >= 0 && mp_layout.bmargin.x >= 0 
	    &&  mp_layout.xspacing.x >= 0 && mp_layout.yspacing.x >= 0)
		mp_layout.auto_layout_margins = TRUE;
	    else
		int_error(NO_CARET, "must give positive margin and spacing values");
	} else if (set_spacing) {
	    int_warn(NO_CARET, "must give margins and spacing, continue with auto margins.");
	} else if (set_margins) {
	    mp_layout.auto_layout_margins = TRUE;
	    mp_layout.xspacing.scalex = screen;
	    mp_layout.xspacing.x = 0.05;
	    mp_layout.yspacing.scalex = screen;
	    mp_layout.yspacing.x = 0.05;
	    int_warn(NO_CARET, "must give margins and spacing, continue with spacing of 0.05");
	}
	/* Sanity check that screen tmargin is > screen bmargin */
	if (mp_layout.bmargin.scalex == screen && mp_layout.tmargin.scalex == screen)
	    if (mp_layout.bmargin.x > mp_layout.tmargin.x) {
		double tmp = mp_layout.bmargin.x;
		mp_layout.bmargin.x = mp_layout.tmargin.x;
		mp_layout.tmargin.x = tmp;
	    }
    }

    /* If we reach here, then the command has been successfully parsed.
     * Aug 2013: call term_start_plot() before setting multiplot so that
     * the wxt and qt terminals will reset the plot count to 0 before
     * ignoring subsequent TERM_LAYER_RESET requests. 
     */
    term_start_plot();
    multiplot = TRUE;
    fill_gpval_integer("GPVAL_MULTIPLOT", 1);

    /* Place overall title before doing anything else */
    if (mp_layout.title.text) {
	double tmpx, tmpy;
	unsigned int x, y;
	char *p = mp_layout.title.text;

	map_position_r(&(mp_layout.title.offset), &tmpx, &tmpy, "mp title");
	x = term->xmax  / 2 + tmpx;
	y = term->ymax - term->v_char + tmpy;;

	ignore_enhanced(mp_layout.title.noenhanced);
	apply_pm3dcolor(&(mp_layout.title.textcolor));
	write_multiline(x, y, mp_layout.title.text,
			CENTRE, JUST_TOP, 0, mp_layout.title.font);
	reset_textcolor(&(mp_layout.title.textcolor));
	ignore_enhanced(FALSE);

	/* Calculate fractional height of title compared to entire page */
	/* If it would fill the whole page, forget it! */
	for (y=1; *p; p++)
	    if (*p == '\n')
		y++;

	/* Oct 2012 - v_char depends on the font used */
	if (mp_layout.title.font && *mp_layout.title.font)
	    term->set_font(mp_layout.title.font);
	mp_layout.title_height = (double)(y * term->v_char) / (double)term->ymax;
	if (mp_layout.title.font && *mp_layout.title.font)
	    term->set_font("");

	if (mp_layout.title_height > 0.9)
	    mp_layout.title_height = 0.05;
    } else {
	mp_layout.title_height = 0.0;
    }

    if (mp_layout.auto_layout_margins)
	mp_layout_margins_and_spacing();
    else
	mp_layout_size_and_offset();
}
Example #2
0
static int command()
{
    FILE *fp;
    int i;
    /* string holding name of save or load file */
    char sv_file[MAX_LINE_LEN + 1];

    for (i = 0; i < MAX_NUM_VAR; i++)
	c_dummy_var[i][0] = NUL;	/* no dummy variables */

    if (is_definition(c_token))
	define();
    else if (almost_equals(c_token, "h$elp") || equals(c_token, "?")) {
	c_token++;
	do_help(1);
    } else if (equals(c_token, "testtime")) {
	/* given a format and a time string, exercise the time code */
	char format[160], string[160];
	struct tm tm;
	double secs;
	if (isstring(++c_token)) {
	    quote_str(format, c_token, 159);
	    if (isstring(++c_token)) {
		quote_str(string, c_token++, 159);
		memset(&tm, 0, sizeof(tm));
		gstrptime(string, format, &tm);
		secs = gtimegm(&tm);
		fprintf(stderr, "internal = %f - %d/%d/%d::%d:%d:%d , wday=%d, yday=%d\n",
			secs, tm.tm_mday, tm.tm_mon + 1, tm.tm_year % 100, tm.tm_hour, tm.tm_min, tm.tm_sec, tm.tm_wday, tm.tm_yday);
		memset(&tm, 0, sizeof(tm));
		ggmtime(&tm, secs);
		gstrftime(string, 159, format, secs);
		fprintf(stderr, "convert back \"%s\" - %d/%d/%d::%d:%d:%d , wday=%d, yday=%d\n",
			string, tm.tm_mday, tm.tm_mon + 1, tm.tm_year % 100, tm.tm_hour, tm.tm_min, tm.tm_sec, tm.tm_wday, tm.tm_yday);
	    }
	}
    } else if (almost_equals(c_token, "test")) {
	c_token++;
	test_term();
    } else if (almost_equals(c_token, "scr$eendump")) {
	c_token++;
#ifdef _Windows
	screen_dump();
#else
	fputs("screendump not implemented\n", stderr);
#endif
    } else if (almost_equals(c_token, "pa$use")) {
	struct value a;
	int sleep_time, text = 0;
	char buf[MAX_LINE_LEN + 1];

	c_token++;
	sleep_time = (int) real(const_express(&a));
	buf[0] = NUL;
	if (!(END_OF_COMMAND)) {
	    if (!isstring(c_token))
		int_error("expecting string", c_token);
	    else {
		quote_str(buf, c_token, MAX_LINE_LEN);
		++c_token;
#ifdef _Windows
		if (sleep_time >= 0)
#else
# ifdef OS2
		if (strcmp(term->name, "pm") != 0 || sleep_time >= 0)
# else
#  ifdef MTOS
	        if (strcmp(term->name, "mtos") != 0 || sleep_time >= 0)
#  endif /* MTOS */
# endif /* OS2 */
#endif /* _Windows */
			fputs(buf, stderr);
		text = 1;
	    }
	}
	if (sleep_time < 0) {
#ifdef _Windows
	    if (!Pause(buf))
		bail_to_command_line();
#else
# ifdef OS2
	    if (strcmp(term->name, "pm") == 0 && sleep_time < 0) {
		int rc;
		if ((rc = PM_pause(buf)) == 0)
		    bail_to_command_line();
		else if (rc == 2) {
		    fputs(buf, stderr);
		    text = 1;
		    (void) fgets(buf, MAX_LINE_LEN, stdin);
		}
	    }
# else				/* !OS2 */
#  ifdef _Macintosh
	    if (strcmp(term->name, "macintosh") == 0 && sleep_time < 0)
		Pause(sleep_time);
#  else				/* !_Macintosh */
#   ifdef MTOS
	    if (strcmp(term->name, "mtos") == 0) {
		int MTOS_pause(char *buf);
		int rc;
		if ((rc = MTOS_pause(buf)) == 0)
		    bail_to_command_line();
		else if (rc == 2) {
		    fputs(buf, stderr);
		    text = 1;
		    (void) fgets(buf, MAX_LINE_LEN, stdin);
		}
	    } else if (strcmp(term->name, "atari") == 0) {
		char *readline(char *);
		char *line = readline("");
		if (line)
		    free(line);
	    } else
		(void) fgets(buf, MAX_LINE_LEN, stdin);
#   else			/* !MTOS */
#    ifdef ATARI
	    if (strcmp(term->name, "atari") == 0) {
		char *readline(char *);
		char *line = readline("");
		if (line)
		    free(line);
	    } else
		(void) fgets(buf, MAX_LINE_LEN, stdin);
#    else			/* !ATARI */
	    (void) fgets(buf, MAX_LINE_LEN, stdin);
	    /* Hold until CR hit. */
#    endif			/* !ATARI */
#   endif			/* !MTOS */
#  endif			/* !_Macintosh */
# endif				/* !OS2 */
#endif
	}
	if (sleep_time > 0)
	    GP_SLEEP(sleep_time);

	if (text != 0 && sleep_time >= 0)
	    fputc('\n', stderr);
	screen_ok = FALSE;
    } else if (almost_equals(c_token, "pr$int")) {
	int need_space = 0;	/* space printed between two expressions only */
	screen_ok = FALSE;
	do {
	    ++c_token;
	    if (isstring(c_token)) {
		char s[MAX_LINE_LEN];
		quote_str(s, c_token, MAX_LINE_LEN);
		fputs(s, stderr);
		need_space = 0;
		++c_token;
	    } else {
		struct value a;
		(void) const_express(&a);
		if (need_space)
		    putc(' ', stderr);
		need_space = 1;
		disp_value(stderr, &a);
	    }
	} while (!END_OF_COMMAND && equals(c_token, ","));

	(void) putc('\n', stderr);
    } else if (almost_equals(c_token, "fit")) {
	++c_token;
	do_fit();
    } else if (almost_equals(c_token, "up$date")) {
	char tmps[80];
	char tmps2[80];
	/* Have to initialise tmps2, otherwise
	 * update() cannot decide whether a valid
	 * filename was given. lh
	 */
	tmps2[0] = NUL;
	if (!isstring(++c_token))
	    int_error("Parameter filename expected", c_token);
	quote_str(tmps, c_token++, 80);
	if (!(END_OF_COMMAND)) {
	    if (!isstring(c_token))
		int_error("New parameter filename expected", c_token);
	    else
		quote_str(tmps2, c_token++, 80);
	}
	update(tmps, tmps2);
    } else if (almost_equals(c_token, "p$lot")) {
	plot_token = c_token++;
	SET_CURSOR_WAIT;
	plotrequest();
	SET_CURSOR_ARROW;
    } else if (almost_equals(c_token, "sp$lot")) {
	plot_token = c_token++;
	SET_CURSOR_WAIT;
	plot3drequest();
	SET_CURSOR_ARROW;
    } else if (almost_equals(c_token, "rep$lot")) {
	if (replot_line[0] == NUL)
	    int_error("no previous plot", c_token);
	c_token++;
	SET_CURSOR_WAIT;
	replotrequest();
	SET_CURSOR_ARROW;
    } else if (almost_equals(c_token, "se$t"))
	set_command();
    else if (almost_equals(c_token, "res$et"))
	reset_command();
    else if (almost_equals(c_token, "sh$ow"))
	show_command();
    else if (almost_equals(c_token, "cl$ear")) {
	term_start_plot();

	if (multiplot && term->fillbox) {
	    unsigned int x1 = (unsigned int) (xoffset * term->xmax);
	    unsigned int y1 = (unsigned int) (yoffset * term->ymax);
	    unsigned int width = (unsigned int) (xsize * term->xmax);
	    unsigned int height = (unsigned int) (ysize * term->ymax);
	    (*term->fillbox) (0, x1, y1, width, height);
	}
	term_end_plot();

	screen_ok = FALSE;
	c_token++;
    } else if (almost_equals(c_token, "she$ll")) {
	do_shell();
	screen_ok = FALSE;
	c_token++;
    } else if (almost_equals(c_token, "sa$ve")) {
	if (almost_equals(++c_token, "f$unctions")) {
	    if (!isstring(++c_token))
		int_error("expecting filename", c_token);
	    else {
		quote_str(sv_file, c_token, MAX_LINE_LEN);
		save_functions(fopen(sv_file, "w"));
	    }
	} else if (almost_equals(c_token, "v$ariables")) {
	    if (!isstring(++c_token))
		int_error("expecting filename", c_token);
	    else {
		quote_str(sv_file, c_token, MAX_LINE_LEN);
		save_variables(fopen(sv_file, "w"));
	    }
	} else if (almost_equals(c_token, "s$et")) {
	    if (!isstring(++c_token))
		int_error("expecting filename", c_token);
	    else {
		quote_str(sv_file, c_token, MAX_LINE_LEN);
		save_set(fopen(sv_file, "w"));
	    }
	} else if (isstring(c_token)) {
	    quote_str(sv_file, c_token, MAX_LINE_LEN);
	    save_all(fopen(sv_file, "w"));
	} else {
	    int_error("filename or keyword 'functions', 'variables', or 'set' expected", c_token);
	}
	c_token++;
    } else if (almost_equals(c_token, "l$oad")) {
	if (!isstring(++c_token))
	    int_error("expecting filename", c_token);
	else {
	    quote_str(sv_file, c_token, MAX_LINE_LEN);
	    /* load_file(fp=fopen(sv_file, "r"), sv_file, FALSE); OLD
	     * DBT 10/6/98 handle stdin as special case
	     * passes it on to load_file() so that it gets
	     * pushed on the stack and recusion will work, etc
	     */
	    fp = strcmp(sv_file, "-") ? fopen(sv_file, "r") : stdin; 
	    load_file(fp, sv_file, FALSE);
	    /* input_line[] and token[] now destroyed! */
	    c_token = num_tokens = 0;
	}
    } else if (almost_equals(c_token, "ca$ll")) {
	if (!isstring(++c_token))
	    int_error("expecting filename", c_token);
	else {
	    quote_str(sv_file, c_token, MAX_LINE_LEN);
	    load_file(fopen(sv_file, "r"), sv_file, TRUE);	/* Argument list follows filename */
	    /* input_line[] and token[] now destroyed! */
	    c_token = num_tokens = 0;
	}
    } else if (almost_equals(c_token, "if")) {
	double exprval;
	struct value t;
	if (!equals(++c_token, "("))	/* no expression */
	    int_error("expecting (expression)", c_token);
	exprval = real(const_express(&t));
	if (exprval != 0.0) {
	    /* fake the condition of a ';' between commands */
	    int eolpos = token[num_tokens - 1].start_index + token[num_tokens - 1].length;
	    --c_token;
	    token[c_token].length = 1;
	    token[c_token].start_index = eolpos + 2;
	    input_line[eolpos + 2] = ';';
	    input_line[eolpos + 3] = NUL;
	} else
	    c_token = num_tokens = 0;
    } else if (almost_equals(c_token, "rer$ead")) {
	fp = lf_top();
	if (fp != (FILE *) NULL)
	    rewind(fp);
	c_token++;
    } else if (almost_equals(c_token, "cd")) {
	if (!isstring(++c_token))
	    int_error("expecting directory name", c_token);
	else {
	    quote_str(sv_file, c_token, MAX_LINE_LEN);
	    if (changedir(sv_file)) {
		int_error("Can't change to this directory", c_token);
	    }
	    c_token++;
	}
    } else if (almost_equals(c_token, "pwd")) {
	GP_GETCWD(sv_file, sizeof(sv_file));
	fprintf(stderr, "%s\n", sv_file);
	c_token++;
    } else if (almost_equals(c_token, "ex$it") ||
	       almost_equals(c_token, "q$uit")) {
	/* graphics will be tidied up in main */
	return (1);
    } else if (!equals(c_token, ";")) {		/* null statement */
#ifdef OS2
	if (_osmode == OS2_MODE) {
	    if (token[c_token].is_token) {
		int rc;
		rc = ExecuteMacro(input_line + token[c_token].start_index,
				  token[c_token].length);
		if (rc == 0) {
		    c_token = num_tokens = 0;
		    return (0);
		}
	    }
	}
#endif
	int_error("invalid command", c_token);
    }
    return (0);
}