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f_read.c
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f_read.c
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/*
* FIG : Facility for Interactive Generation of figures
* Copyright (c) 1985-1988 by Supoj Sutanthavibul
* Parts Copyright (c) 1989-2002 by Brian V. Smith
* Parts Copyright (c) 1991 by Paul King
*
* Any party obtaining a copy of these files is granted, free of charge, a
* full and unrestricted irrevocable, world-wide, paid up, royalty-free,
* nonexclusive right and license to deal in this software and documentation
* files (the "Software"), including without limitation the rights to use,
* copy, modify, merge, publish distribute, sublicense and/or sell copies of
* the Software, and to permit persons who receive copies from any such
* party to do so, with the only requirement being that the above copyright
* and this permission notice remain intact.
*
*/
#include "fig.h"
#include "figx.h"
#include "resources.h"
#include "object.h"
#include "mode.h"
#include "f_read.h"
#include "u_fonts.h"
#include "u_create.h"
#include "version.h"
#include "w_drawprim.h"
#include "w_export.h"
#include "w_file.h"
#include "w_print.h"
#include "w_indpanel.h"
#include "w_color.h"
#include "w_msgpanel.h"
#include "w_setup.h"
#include "w_util.h"
#include "w_zoom.h"
#include "d_spline.h"
#include "e_update.h"
#include "f_picobj.h"
#include "f_readold.h"
#include "f_util.h"
#include "u_bound.h"
#include "u_free.h"
#include "u_scale.h"
#include "u_translate.h"
#include "w_util.h"
#include "w_layers.h"
/* EXPORTS */
int defer_update_layers = 0; /* if != 0, update_layers() doesn't update */
int line_no, save_line; /* current input line number */
int num_object; /* current number of objects */
char *read_file_name; /* current input file name */
/* LOCAL */
static char Err_incomp[] = "Incomplete %s object at line %d.";
static void read_colordef(FILE *fp);
static F_ellipse *read_ellipseobject(void);
static F_line *read_lineobject(FILE *fp);
static F_text *read_textobject(FILE *fp);
static F_spline *read_splineobject(FILE *fp);
static F_arc *read_arcobject(FILE *fp);
static F_compound *read_compoundobject(FILE *fp);
static char *attach_comments(void);
static void count_lines_correctly(FILE *fp);
static int read_return(int status);
static Boolean contains_picture(F_compound *compound);
#define FILL_CONVERT(f) \
((proto >= 22) ? (f): \
(((proto>=20) || (f) == 0 || !TFX) ? \
(f-1) : (!TFX? (NUMFILLPATS-1) - ((f)-1)*5: UNFILLED)))
/* max number of comments that can be stored with each object */
#define MAXCOMMENTS 100
/* input buffer length */
#define BUF_SIZE 1024
char buf[BUF_SIZE]; /* input buffer */
char *comments[MAXCOMMENTS]; /* comments saved for current object */
int numcom; /* current comment index */
Boolean com_alloc = False; /* whether or not the comment array has been init. */
int TFX; /* true for 1.4TFX protocol */
int proto; /* file protocol*10 */
float fproto, xfigproto; /* floating values for protocol of figure
file and current protocol */
/* initialize the user color counter - then read figure file.
Called from load_file(), merge_file(), preview_figure(), load_lib_obj(),
and paste(), but NOT from read_figure() (import Fig as picture) */
void merge_colors (F_compound *objects);
void swap_colors (void);
int readfp_fig (FILE *fp, F_compound *obj, Boolean merge, int xoff, int yoff, fig_settings *settings);
int read_line (FILE *fp);
int read_objects (FILE *fp, F_compound *obj, int *res);
void scale_figure (F_compound *obj, float mul, int offset);
void shift_figure (F_compound *obj);
void fix_depth (int *depth);
void check_color (int *color);
void convert_arrow (int *type, float *wd, float *ht);
void fix_angle (float *angle);
void skip_line (FILE *fp);
int backslash_count (char *cp, int start);
int save_comment (FILE *fp);
void renumber_comp (F_compound *compound);
void renumber (int *color);
int
read_figc(char *file_name, F_compound *obj, Boolean merge, Boolean remapimages, int xoff, int yoff, fig_settings *settings)
{
int i,status;
n_num_usr_cols = -1;
for (i=0; i<MAX_USR_COLS; i++)
n_colorFree[i] = True;
/* now read the file */
status = read_fig(file_name, obj, merge, xoff, yoff, settings);
if (status != 0)
return status;
if (merge) {
/* merge any user colors from the new file just read into the current figure */
merge_colors(obj);
} else {
/* now swap old figure colors with new colors (if any) */
swap_colors();
current_memory = -1;
show_pencolor();
show_fillcolor();
}
/* and remap colors for all pictures */
/* but only if a picture object is in the new file */
if (remapimages && contains_picture(obj))
remap_imagecolors();
return status;
}
static Boolean
contains_picture(F_compound *compound)
{
F_line *l;
F_compound *c;
/* traverse the compounds in this compound */
for (c = compound->compounds; c != NULL; c = c->next) {
if (contains_picture(c))
return True;
}
for (l = compound->lines; l != NULL; l = l->next) {
if (l->type == T_PICTURE)
return True;
}
return False;
}
/**********************************************************
Read_fig returns :
0 : successful read.
BAD_FORMAT : File is in incorrect format
EMPTY_FILE : File is empty
NO_VERSION : No version was found in "#FIG" header
err_no : if file can not be read for various reasons
(from /usr/include/sys/errno.h)
The resolution (ppi) is stored in resolution.
The coordinate system is 1 for lower left at 0,0 and
2 for upper left at 0,0, but this value is not used,
because xfig only uses 2 for the coordinate system.
If "merge" is True, the user colors are merged into the color
set, else they replace the current user colors.
Also, if merging, if the file being merged into the main figure
has different units (inches/cm) it is rescaled to match the
main figure.
If update_figs is false, any imported images are read in, otherwise
they are not. The latter case is used for the -update command-line
option where the user just wants to read and re-write Fig files
to bring them up-to-date.
**********************************************************/
int
read_fig(char *file_name, F_compound *obj, Boolean merge, int xoff, int yoff, fig_settings *settings)
{
FILE *fp;
int status;
read_file_name = file_name;
first_file_msg = True;
if (uncompress_file(file_name) == False)
return ENOENT; /* doesn't exist */
if ((fp = fopen(file_name, "r")) == NULL)
return errno;
else {
if (!update_figs)
put_msg("Reading objects from \"%s\" ...", file_name);
#ifdef I18N
/* set the numeric locale to C so we get decimal points for numbers */
setlocale(LC_NUMERIC, "C");
#endif /* I18N */
status = readfp_fig(fp, obj, merge, xoff, yoff, settings);
#ifdef I18N
/* reset to original locale */
setlocale(LC_NUMERIC, "");
#endif /* I18N */
fclose(fp);
/* so subsequent file_msg() calls don't print wrong file name */
first_file_msg = False;
return status;
}
}
int
readfp_fig(FILE *fp, F_compound *obj, Boolean merge, int xoff, int yoff, fig_settings *settings)
{
int status;
int i;
int resolution;
char versstring[10];
defer_update_layers = 1; /* prevent update_layers() from updating */
/* initialize settings structure in case we read an older Fig format */
settings->landscape = appres.landscape;
settings->flushleft = appres.flushleft;
settings->units = appres.INCHES;
settings->papersize = appres.papersize;
settings->magnification = appres.magnification;
settings->multiple = appres.multiple;
settings->transparent = appres.transparent;
num_object = 0;
/* reset comment number */
numcom = 0;
/* initialize the comment array */
if (!com_alloc)
for (i=0; i<MAXCOMMENTS; i++)
comments[i] = (char *) NULL;
com_alloc = True;
bzero((char*)obj, COMOBJ_SIZE);
line_no = 1;
/* read the version header line (e.g. #FIG 3.2) */
if (fgets(buf, BUF_SIZE, fp) == 0)
return read_return(EMPTY_FILE);
if (strncmp(buf, "#FIG", 4) == 0) { /* versions 1.4/later have #FIG in first line */
if (strlen(buf) <= 6) {
return read_return(NO_VERSION); /* Short line - say corrupt */
}
if ((sscanf((char*)(strchr(buf, ' ') + 1), "%f", &fproto)) == 0) /* assume 1.4 */
proto = 14;
else
proto = (fproto + .01) * 10; /* protocol version*10 */
/* if file protocol != current protocol, give message */
strcpy(versstring, PROTOCOL_VERSION); /* copy because gcc doesn't allow writing */
sscanf(versstring,"%f",&xfigproto); /* to const strings. sscanf does ungetc */
if (fproto > xfigproto) {
file_msg("You must have a NEWER version of Xfig to load this figure (%.1f).",
fproto);
return read_return(BAD_FORMAT);
}
/* Protocol 2.2 was only beta test - 3.0 is the release (and is identical) */
if (proto == 22)
proto = 30;
TFX = False;
if (strstr(buf, "TFX") != NULL)
TFX = True;
if (proto >= 30) {
/* read Portrait/Landscape indicator now */
if (read_line(fp) < 0) {
file_msg("No Portrait/Landscape specification");
return read_return(BAD_FORMAT); /* error */
}
settings->landscape = (strncasecmp(buf,"landscape",9) == 0);
/* read Centering indicator now */
if (read_line(fp) < 0) {
file_msg("No Center/Flushleft specification");
return read_return(BAD_FORMAT); /* error */
}
if ((strncasecmp(buf,"center",6) == 0) ||
(strncasecmp(buf,"flush",5) == 0)) {
/* use negative to ensure 1/0 (strcmp may return 3 or 4 for false) */
settings->flushleft = !strncasecmp(buf,"flush",5);
/* NOW read metric/inches indicator */
if (read_line(fp) < 0) {
file_msg("No Metric/Inches specification");
return read_return(BAD_FORMAT); /* error */
}
}
/* set metric/inches mode appropriately */
settings->units = (strncasecmp(buf,"metric",5) != 0);
/* paper size, magnification, multiple page flag and transparent color
(for GIF export) new in 3.2 */
if (proto >= 32) {
/* read paper size now */
if (read_line(fp) < 0) {
file_msg("No Paper size specification");
return read_return(BAD_FORMAT); /* error */
}
/* parse the paper size */
settings->papersize = parse_papersize(buf);
/* read magnification now */
if (read_line(fp) < 0) {
file_msg("No Magnification specification");
return read_return(BAD_FORMAT); /* error */
}
settings->magnification = atoi(buf);
/* read multiple page flag now */
if (read_line(fp) < 0) {
file_msg("No Multiple page flag specification");
return read_return(BAD_FORMAT); /* error */
}
if (strncasecmp(buf,"multiple",8) != 0 &&
strncasecmp(buf,"single",6) != 0) {
file_msg("No Multiple page flag specification");
return read_return(BAD_FORMAT);
}
settings->multiple = (strncasecmp(buf,"multiple",8) == 0);
/* read transparent color now */
if (read_line(fp) < 0) {
file_msg("No Transparent color specification");
return read_return(BAD_FORMAT); /* error */
}
settings->transparent = atoi(buf);
}
}
/* now read the figure itself */
status = read_objects(fp, obj, &resolution);
} else {
file_msg("Seeing if this figure is Fig format 1.3");
file_msg("If this doesn't work then this is not a Fig file.");
proto = 13;
status = read_1_3_objects(fp, buf, obj);
}
/* don't go any further if there was an error in reading the figure */
if (status != 0) {
return read_return(status);
}
n_num_usr_cols++; /* number of user colors = max index + 1 */
/*******************************************************************************
The older versions of xfig (1.3 to 2.1) used values that ended in 4 or 9
for coordinates on the "grid". When multiplied by 15 for the 3.0
resolution these values ended up 14 "new" pixels off the grid.
For 3.0 files, 1 is added to the coordinates, and in addition, the USER
is supposed to set the x and y offset in the file panel both to the
amount necessary to correct the problem.
For older files 1 is first added to coordinates then they are multiplied by 15.
********************************************************************************/
if (proto == 30) {
scale_figure(obj,((float)PIX_PER_INCH)/resolution,0);
} else if (resolution != PIX_PER_INCH) {
if (proto == 21 && resolution == 76 && !settings->units)
scale_figure(obj,((float)PIX_PER_INCH)/80,15); /* for 2.1.8S, HWS */
else
scale_figure(obj,((float)PIX_PER_INCH)/resolution,15);
}
/* if merging a figure with different units, rescale for mixed units, HWS */
if (merge && (proto >= 30)) {
if (!appres.INCHES && settings->units)
read_scale_compound(obj,(2.54*PIX_PER_CM)/((float)PIX_PER_INCH),0);
if (appres.INCHES && !settings->units)
read_scale_compound(obj,((float)PIX_PER_INCH)/(2.54*PIX_PER_CM),0);
}
/* if the user wants to scale the figure */
if (scale_factor != 1.0)
read_scale_compound(obj, scale_factor, 0);
/* shift the figure by the amount in the x and y offsets from the file panel */
translate_compound(obj, xoff, yoff);
/* get bounding box of whole figure */
compound_bound(obj,&obj->nwcorner.x,&obj->nwcorner.y,&obj->secorner.x,&obj->secorner.y);
/* ask the user if the figure should be shifted if there are negative coords */
if (!update_figs)
shift_figure(obj);
/* now update the grid/ruler units */
if (settings->units) {
/* inches */
if (strcasecmp(appres.tgrid_unit, "default") != 0) {
/* the user specified a units when he started, try to keep it */
if (strcasecmp(appres.tgrid_unit, "tenth") == 0 ||
strcasecmp(appres.tgrid_unit, "ten") == 0 ||
strcasecmp(appres.tgrid_unit, "1/10") == 0 ||
strcasecmp(appres.tgrid_unit, "10") == 0)
settings->grid_unit = TENTH_UNIT;
else
settings->grid_unit = FRACT_UNIT;
} else {
settings->grid_unit = FRACT_UNIT;
}
} else {
/* metric, only choice */
settings->grid_unit = MM_UNIT;
}
/* return with status */
return read_return(status);
}
/* clear defer_update_layers counter, update the layer buttons and return status */
static int
read_return(int status)
{
defer_update_layers = 0;
if (!update_figs)
update_layers();
return status;
}
int read_objects(FILE *fp, F_compound *obj, int *res)
{
F_ellipse *e, *le = NULL;
F_line *l, *ll = NULL;
F_text *t, *lt = NULL;
F_spline *s, *ls = NULL;
F_arc *a, *la = NULL;
F_compound *c, *lc = NULL;
int object, ppi, coord_sys;
if (read_line(fp) < 0) {
file_msg("No Resolution specification; figure is empty");
return BAD_FORMAT;
}
/* read the resolution (ppi) and the coordinate system used (upper-left or lower-left) */
if (sscanf(buf, "%d%d\n", &ppi, &coord_sys) != 2) {
file_msg("Figure resolution or coordinate specifier missing in line %d.", line_no);
return BAD_FORMAT;
}
/* attach any comments found thus far to the whole figure */
obj->comments = attach_comments();
/* save the resolution for caller */
*res = ppi;
while (read_line(fp) > 0) {
if (sscanf(buf, "%d", &object) != 1) {
file_msg("Incorrect format at line %d.", line_no);
return (num_object != 0? 0: BAD_FORMAT); /* ok if any objects have been read */
}
switch (object) {
case O_COLOR_DEF:
read_colordef(fp);
if (num_object) {
file_msg("Color definitions must come before other objects (line %d).",
line_no);
}
break;
case O_POLYLINE:
if ((l = read_lineobject(fp)) == NULL)
continue;
if (ll)
ll = (ll->next = l);
else
ll = obj->lines = l;
num_object++;
break;
case O_SPLINE:
if ((s = read_splineobject(fp)) == NULL)
continue;
if (ls)
ls = (ls->next = s);
else
ls = obj->splines = s;
num_object++;
break;
case O_ELLIPSE:
if ((e = read_ellipseobject()) == NULL)
continue;
if (le)
le = (le->next = e);
else
le = obj->ellipses = e;
num_object++;
break;
case O_ARC:
if ((a = read_arcobject(fp)) == NULL)
continue;
if (la)
la = (la->next = a);
else
la = obj->arcs = a;
num_object++;
break;
case O_TEXT:
if ((t = read_textobject(fp)) == NULL)
continue;
if (lt)
lt = (lt->next = t);
else
lt = obj->texts = t;
num_object++;
break;
case O_COMPOUND:
if ((c = read_compoundobject(fp)) == NULL)
continue;
if (lc)
lc = (lc->next = c);
else
lc = obj->compounds = c;
num_object++;
break;
default:
file_msg("Incorrect object code at line %d.", line_no);
continue;
} /* switch */
} /* while */
if (feof(fp))
return 0;
else
return errno;
} /* read_objects */
int parse_papersize(char *size)
{
int i,len;
char *c;
/* first get rid of trailing newline */
if (size[strlen(size)-1]=='\n')
size[strlen(size)-1]='\0';
/* then truncate at first space or parenthesis "(" in passed size */
if (((c=strchr(size,' '))!= NULL)||((c=strchr(size,'(')) != NULL)) {
*c ='\0';
}
len = strlen(size);
/* change ledger (deprecated) to tabloid */
if (strncasecmp(size,"ledger",len) == 0)
strcpy(size,"tabloid");
for (i=0; i<NUMPAPERSIZES; i++) {
if (strncasecmp(size,paper_sizes[i].sname,len) == 0)
break;
}
/* return entry 0 for bad papersize */
if (i >= NUMPAPERSIZES)
return 0;
return i;
}
static void
read_colordef(FILE *fp)
{
int c,r,g,b;
if ((sscanf(buf, "%*d %d #%02x%02x%02x", &c, &r, &g, &b) != 4) ||
(c < NUM_STD_COLS) || (c >= MAX_USR_COLS+NUM_STD_COLS)) {
buf[strlen(buf)-1]='\0'; /* remove the newline */
file_msg("Invalid color definition: %s, setting to black (#00000).",buf);
r=g=b=0;
c = NUM_STD_COLS;
}
/* make in the range 0...MAX_USR_COLS */
c -= NUM_STD_COLS;
n_user_colors[c].red = r*256;
n_user_colors[c].green = g*256;
n_user_colors[c].blue = b*256;
n_colorFree[c] = False;
/* keep track of highest color number */
n_num_usr_cols = max2(c, n_num_usr_cols);
}
static F_arc *
read_arcobject(FILE *fp)
{
F_arc *a;
int n, fa, ba;
int type, style;
float thickness, wd, ht;
if ((a = create_arc()) == NULL)
return NULL;
save_line = line_no;
a->next = NULL;
a->for_arrow = a->back_arrow = NULL;
if (proto >= 30) {
n = sscanf(buf, "%*d%d%d%d%d%d%d%d%d%f%d%d%d%d%f%f%d%d%d%d%d%d\n",
&a->type, &a->style, &a->thickness,
&a->pen_color, &a->fill_color, &a->depth,
&a->pen_style, &a->fill_style,
&a->style_val, &a->cap_style,
&a->direction, &fa, &ba,
&a->center.x, &a->center.y,
&a->point[0].x, &a->point[0].y,
&a->point[1].x, &a->point[1].y,
&a->point[2].x, &a->point[2].y);
} else {
n = sscanf(buf, "%*d%d%d%d%d%d%d%d%f%d%d%d%f%f%d%d%d%d%d%d\n",
&a->type, &a->style, &a->thickness,
&a->pen_color, &a->depth,
&a->pen_style, &a->fill_style,
&a->style_val, &a->direction, &fa, &ba,
&a->center.x, &a->center.y,
&a->point[0].x, &a->point[0].y,
&a->point[1].x, &a->point[1].y,
&a->point[2].x, &a->point[2].y);
a->fill_color = a->pen_color;
a->cap_style = CAP_BUTT; /* butt line cap */
}
a->type--; /* internally, 0=open arc, 1=pie wedge */
if (((proto < 22) && (n != 19)) || ((proto >= 30) && (n != 21))) {
file_msg(Err_incomp, "arc", save_line);
free((char *) a);
return NULL;
}
a->fill_style = FILL_CONVERT(a->fill_style);
fix_depth(&a->depth);
check_color(&a->pen_color);
check_color(&a->fill_color);
fix_fillstyle(a); /* make sure that black/white have legal fill styles */
a->comments = attach_comments(); /* attach any comments */
/* forward arrow */
if (fa) {
if (read_line(fp) == -1)
return a;
if (sscanf(buf, "%d%d%f%f%f", &type, &style, &thickness, &wd, &ht) != 5) {
file_msg(Err_incomp, "arc", save_line);
return a;
}
/* throw away any arrow heads on pie-wedge arcs */
if (a->type == T_OPEN_ARC) {
/* make sure arrowhead is legal and convert units */
convert_arrow(&type, &wd, &ht);
a->for_arrow = new_arrow(type, style, thickness, wd, ht);
}
}
/* backward arrow */
if (ba) {
if (read_line(fp) == -1)
return a;
if (sscanf(buf, "%d%d%f%f%f", &type, &style, &thickness, &wd, &ht) != 5) {
file_msg(Err_incomp, "arc", save_line);
return a;
}
/* throw away any arrow heads on pie-wedge arcs */
if (a->type == T_OPEN_ARC) {
/* make sure arrowhead is legal and convert units */
convert_arrow(&type, &wd, &ht);
a->back_arrow = new_arrow(type, style, thickness, wd, ht);
}
}
return a;
}
static F_compound *
read_compoundobject(FILE *fp)
{
F_arc *a, *la = NULL;
F_ellipse *e, *le = NULL;
F_line *l, *ll = NULL;
F_spline *s, *ls = NULL;
F_text *t, *lt = NULL;
F_compound *com, *c, *lc = NULL;
int n, object;
if ((com = create_compound()) == NULL)
return NULL;
com->arcs = NULL;
com->ellipses = NULL;
com->lines = NULL;
com->splines = NULL;
com->texts = NULL;
com->compounds = NULL;
com->next = NULL;
com->comments = attach_comments(); /* attach any comments */
save_line = line_no;
/* read bounding info for compound */
n = sscanf(buf, "%*d%d%d%d%d\n", &com->nwcorner.x, &com->nwcorner.y,
&com->secorner.x, &com->secorner.y);
/* if compound spec has no bounds, set to 0 and calculate later */
if (n <= 0) {
com->nwcorner.x =com->nwcorner.y = com->secorner.x = com->secorner.y = 0;
} else if (n != 4) {
/* otherwise, if there aren't 4 numbers, complain */
file_msg(Err_incomp, "compound", save_line);
free((char *) com);
return NULL;
}
while (read_line(fp) > 0) {
if (sscanf(buf, "%d", &object) != 1) {
file_msg(Err_incomp, "compound", save_line);
free((char *) com);
return NULL;
}
switch (object) {
case O_POLYLINE:
if ((l = read_lineobject(fp)) == NULL)
continue;
if (ll)
ll = (ll->next = l);
else
ll = com->lines = l;
break;
case O_SPLINE:
if ((s = read_splineobject(fp)) == NULL)
continue;
if (ls)
ls = (ls->next = s);
else
ls = com->splines = s;
break;
case O_ELLIPSE:
if ((e = read_ellipseobject()) == NULL)
continue;
if (le)
le = (le->next = e);
else
le = com->ellipses = e;
break;
case O_ARC:
if ((a = read_arcobject(fp)) == NULL)
continue;
if (la)
la = (la->next = a);
else
la = com->arcs = a;
break;
case O_TEXT:
if ((t = read_textobject(fp)) == NULL)
continue;
if (lt)
lt = (lt->next = t);
else
lt = com->texts = t;
break;
case O_COMPOUND:
if ((c = read_compoundobject(fp)) == NULL)
continue;
if (lc)
lc = (lc->next = c);
else
lc = com->compounds = c;
break;
case O_END_COMPOUND:
/* if compound def had no bounds or all zeroes, calculate bounds now */
if (com->nwcorner.x == 0 && com->nwcorner.x == 0 &&
com->nwcorner.x == 0 && com->nwcorner.x == 0)
compound_bound(com, &com->nwcorner.x, &com->nwcorner.y,
&com->secorner.x, &com->secorner.y);
return com;
default:
file_msg("Incorrect object code at line %d.", save_line);
continue;
} /* switch */
} /* while (read_line(fp) > 0) */
if (feof(fp)) {
compound_bound(com, &com->nwcorner.x, &com->nwcorner.y,
&com->secorner.x, &com->secorner.y);
return com;
} else {
return NULL;
}
}
static F_ellipse *
read_ellipseobject(void)
{
F_ellipse *e;
int n;
if ((e = create_ellipse()) == NULL)
return NULL;
save_line = line_no;
e->next = NULL;
if (proto >= 30) {
n = sscanf(buf, "%*d%d%d%d%d%d%d%d%d%f%d%f%d%d%d%d%d%d%d%d\n",
&e->type, &e->style, &e->thickness,
&e->pen_color, &e->fill_color, &e->depth,
&e->pen_style, &e->fill_style,
&e->style_val, &e->direction, &e->angle,
&e->center.x, &e->center.y,
&e->radiuses.x, &e->radiuses.y,
&e->start.x, &e->start.y,
&e->end.x, &e->end.y);
} else {
n = sscanf(buf, "%*d%d%d%d%d%d%d%d%f%d%f%d%d%d%d%d%d%d%d\n",
&e->type, &e->style, &e->thickness,
&e->pen_color, &e->depth, &e->pen_style, &e->fill_style,
&e->style_val, &e->direction, &e->angle,
&e->center.x, &e->center.y,
&e->radiuses.x, &e->radiuses.y,
&e->start.x, &e->start.y,
&e->end.x, &e->end.y);
e->fill_color = e->pen_color;
}
if (((proto < 22) && (n != 18)) || ((proto >= 30) && (n != 19))) {
file_msg(Err_incomp, "ellipse", save_line);
free((char *) e);
return NULL;
}
e->fill_style = FILL_CONVERT(e->fill_style);
fix_angle(&e->angle); /* make sure angle is 0 to 2PI */
fix_depth(&e->depth);
check_color(&e->pen_color);
check_color(&e->fill_color);
fix_fillstyle(e); /* make sure that black/white have legal fill styles */
e->comments = attach_comments(); /* attach any comments */
return e;
}
static F_line *
read_lineobject(FILE *fp)
{
F_line *l;
F_point *p, *q;
int n, x, y, fa, ba, npts, cnpts;
int type, style, radius_flag;
float thickness, wd, ht;
int ox, oy;
char picfile[PATH_MAX];
Boolean dum;
if ((l = create_line()) == NULL)
return NULL;
save_line = line_no;
l->points = NULL;
l->for_arrow = l->back_arrow = NULL;
l->next = NULL;
sscanf(buf, "%*d%d", &l->type);
/* 2.0 has radius parm only for arc-box objects */
/* 2.1 or later has radius parm for all line objects */
/* 3.0(experimental 2.2) or later additionally has number of points parm for
all line objects and fill color separate from border color */
radius_flag = ((proto >= 21) || (l->type == T_ARCBOX && proto == 20));
if (proto >= 30) {
n = sscanf(buf, "%*d%d%d%d%d%d%d%d%d%f%d%d%d%d%d%d",
&l->type, &l->style, &l->thickness, &l->pen_color, &l->fill_color,
&l->depth, &l->pen_style, &l->fill_style, &l->style_val,
&l->join_style, &l->cap_style, &l->radius, &fa, &ba, &npts);
} else { /* v2.1 and earlier */
if (radius_flag) {
n = sscanf(buf, "%*d%d%d%d%d%d%d%d%f%d%d%d",
&l->type, &l->style, &l->thickness, &l->pen_color, &l->depth,
&l->pen_style, &l->fill_style, &l->style_val, &l->radius, &fa, &ba);
} else { /* old format uses pen for radius of arc-box * corners */
n = sscanf(buf, "%*d%d%d%d%d%d%d%d%f%d%d",
&l->type, &l->style, &l->thickness, &l->pen_color,
&l->depth, &l->pen_style, &l->fill_style, &l->style_val, &fa, &ba);
if (l->type == T_ARCBOX) {
l->radius = l->pen_style;
l->pen_style = -1;
} else
l->radius = DEFAULT;
}
l->fill_color = l->pen_color;
l->join_style = JOIN_MITER; /* miter joint */
l->cap_style = CAP_BUTT; /* butt line cap */
}
if ((!radius_flag && n != 10) ||
(radius_flag && ((proto == 21 && n != 11) ||
((proto >= 30) && n != 15)))) {
file_msg(Err_incomp, "line", save_line);
free((char *) l);
return NULL;
}
l->fill_style = FILL_CONVERT(l->fill_style);
fix_depth(&l->depth);
check_color(&l->pen_color);
check_color(&l->fill_color);
fix_fillstyle(l); /* make sure that black/white have legal fill styles */
/* forward arrow */
if (fa) {
if (read_line(fp) == -1)
return NULL;
if (sscanf(buf, "%d%d%f%f%f", &type, &style, &thickness, &wd, &ht) != 5) {
file_msg(Err_incomp, "line", save_line);
return NULL;
}
/* make sure arrowhead is legal and convert units */
convert_arrow(&type, &wd, &ht);
l->for_arrow = new_arrow(type, style, thickness, wd, ht);
}
/* backward arrow */
if (ba) {
if (read_line(fp) == -1)
return NULL;
if (sscanf(buf, "%d%d%f%f%f", &type, &style, &thickness, &wd, &ht) != 5) {
file_msg(Err_incomp, "line", save_line);
return NULL;
}
/* make sure arrowhead is legal and convert units */
convert_arrow(&type, &wd, &ht);
l->back_arrow = new_arrow(type, style, thickness, wd, ht);
}
if (l->type == T_PICTURE) {
char s1[PATH_MAX];
if (read_line(fp) == -1) {
free((char *) l);
return NULL;
}
if ((l->pic = create_pic()) == NULL) {
free((char *) l);
return NULL;
}
if (sscanf(buf, "%d %[^\n]", &l->pic->flipped, s1) != 2) {
file_msg(Err_incomp, "Picture Object", save_line);
free((char *) l);
return NULL;
}
/* if path is relative convert it to absolute path */
if (s1[0] != '/')
sprintf(picfile, "%s/%s", cur_file_dir, s1);
else
strcpy(picfile, s1);
if (!update_figs) {
/* only read in the image if update_figs is False */
read_picobj(l->pic, picfile, l->pen_color, False, &dum);
} else {
/* otherwise just make a pseudo entry with the filename */
l->pic->pic_cache = create_picture_entry();
l->pic->pic_cache->file = strdup(picfile);
}
/* we've read in a pic object - merge_file uses this info to decide
whether or not to remap any picture colors in first figure */
pic_obj_read = True;
} else
l->pic = NULL;
if ((p = create_point()) == NULL) {
free((char *) l);
return NULL;
}
l->points = p;
p->next = NULL;
/* read first point */
line_no++;
if (fscanf(fp, "%d%d", &p->x, &p->y) != 2) {
file_msg(Err_incomp, "line", save_line);
free_linestorage(l);
return NULL;
}
ox = p->x;
oy = p->y;
/* read subsequent points */
if (proto < 22)
npts = 1000000; /* loop until we find 9999 9999 for previous fig files */
cnpts = 1; /* keep track of actual number of points read */
for (--npts; npts > 0; npts--) {
count_lines_correctly(fp);
if (fscanf(fp, "%d%d", &x, &y) != 2) {
file_msg(Err_incomp, "line", save_line);
free_linestorage(l);
return NULL;
}
if (proto < 22 && x == 9999)
break;
/* ignore identical consecutive points */
if (ox == x && oy == y)
continue;
ox = x;
oy = y;
if ((q = create_point()) == NULL) {
free_linestorage(l);
return NULL;