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/*
* vflserver.c - a font server using VFlib
* by Hirotsugu Kakugawa
*
* 4 Nov 1996 First implementation (for VFlib 3.0.0)
* 10 Dec 1996 For VFlib 3.1.0. Enhanced HELP.
* 13 Dec 1996 Added PROPERTY command.
* 20 Dec 1996 Added MINIMIZE-BBX command.
* 7 Mar 1997 Added COPYING command
* 22 Mar 1997 Upgraded for VFlib 3.2
* 4 Aug 1997 Upgraded for VFlib 3.3 (VFlib API is changed.)
* 22 Jan 1998 Upgraded for VFlib 3.4 (Protocol 2.0.)
* 1 Jun 1998 Changed program names ('vfserver' => 'vflserver')
* 22 Jul 1998 Added ! syntax for specifying font id. (e.g., '!1', '!!')
* 8 Dec 1999 Added VFLIB-VERSION command (Protocol 2.1.)
*/
/*
* Copyright (C) 1996-1999 Hirotsugu Kakugawa.
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* Usage: vflserver [-v vflibcap] [-s shrink] [cmd-file ... ]
*
* Example: ./vflserver -v `pwd`/vflibcap
*
* Commands:
* (Command names are case insensitive; font names are case sensitive.)
* OPEN1 font [ point_size [ mag_x mag_y [ dpi_x dpi_y ]]]
* OPEN2 font [ pixel_size [ mag_x mag_y ]]
* CLOSE font-id
* BITMAP1 font-id code_point [ mag_x mag_y ]
* BITMAP2 font-id code_point [ mag_x mag_y ]
* METRIC1 font-id code_point [ mag_x mag_y ]
* METRIC2 font-id code_point [ mag_x mag_y ]
* FONTBBX1 font-id [ mag_x mag_y ]
* FONTBBX2 font-id [ mag_x mag_y ]
* PROPERTY font-id property
* MINIMIZE-BBX [flag]
* PROTOCOL
* QUIT
* VERSION
* VFLIB-VERSION
* DEBUG [category]
* SLEEP [sec]
* HELP
*
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#if defined(HAVE_STRING_H) || defined(STDC_HEADERS)
# include <string.h>
#else
# include <strings.h>
#endif
#include "VFlib-3_6.h"
#define PROTOCOL_VERSION "VFSERVER/2.0"
#ifndef VERSION
# define VERSION "2.1"
#endif
#define MIN_SHRINK 0.05
#define MAX_ARGS 8
#define MAX_ARG_LEN 80
#define FONTID_TABLE_SIZE 4096
static int minimize_bbx_mode = 0;
static int dump_bitmap_mode = 0;
static int fontid_table[FONTID_TABLE_SIZE];
static int fontid_seq;
static void startup_license(FILE*);
static void run_init(char*,double);
static void cmd_loop(FILE*,int,double);
static int exec_cmd(char*,double);
static void quit(void);
static int parse_args(char**,char*);
static void str_toupper(char *s);
static void dump_bitmap_hex(VF_BITMAP);
static void dump_bitmap_char(VF_BITMAP,double);
extern void vf_dump_bitmap(VF_BITMAP);
static int cmd_open1(char**,int);
static int cmd_open2(char**,int);
static int cmd_close(char**,int);
static int cmd_bitmap1(char**,int,double);
static int cmd_bitmap2(char**,int,double);
static int cmd_bitmap_output(VF_BITMAP,long,double);
static int cmd_metric1(char**,int);
static int cmd_metric2(char**,int);
static int cmd_fontbbx1(char**,int);
static int cmd_fontbbx2(char**,int);
static int cmd_prop(char**,int);
static int cmd_minbbx(char**,int);
static int cmd_proto(char**,int);
static int cmd_help(char**,int);
static int cmd_debug(char**,int);
static int cmd_sleep(char**,int);
static int cmd_version(char**,int);
static int cmd_vflib_version(char**,int);
static void put_fontid(int);
static int get_fontid(char*);
int
main(int argc, char **argv)
{
char *vfcap, **drv_list;
double shrink;
int i, w;
vfcap = NULL;
shrink = -1;
minimize_bbx_mode = 0;
--argc; argv++;
while (argc > 0){
if ((argc >= 1)
&& ((strcmp(argv[0], "-h") == 0) || (strcmp(argv[0], "-help") == 0))){
printf("VFLSERVER - a VFlib server\n");
printf("Usage: vflserver [-v vflibcap] [cmd-file ... ]\n");
printf(" Example: ./vflserver -v /usr/local/lib/VFlib3/vflibcap\n");
exit(0);
} else if ((argc >= 2) && (strcmp(argv[0], "-v") == 0)){
--argc; argv++;
vfcap = argv[0];
--argc; argv++;
} else if ((argc >= 2) && (strcmp(argv[0], "-s") == 0)){
--argc; argv++;
if ((shrink = atof(argv[0])) < MIN_SHRINK)
shrink = MIN_SHRINK;
--argc; argv++;
} else {
break;
}
}
if ((VF_Init(vfcap, NULL) < 0)
|| ((drv_list = VF_FontDriverList()) == NULL)){
printf("(550 \"vflserver version %s. ", VERSION);
printf("based on VFlib %s ", VF_GetVersion());
printf("VFlib error %d)\n", vf_error);
switch (vf_error){
case VF_ERR_INTERNAL:
printf("; Internal error.\n"); break;
case VF_ERR_NO_MEMORY:
printf("; Server runs out of memory.\n"); break;
case VF_ERR_NO_VFLIBCAP:
printf("; No vflibcap.\n"); break;
}
fflush(stdout);
exit(1);
}
printf("; This is a font server VFLSERVER Version %s\n", VERSION);
printf("; (based on VFlib version %s)\n", VF_GetVersion());
printf("; Installed font drivers:");
w = 9999;
for (i = 0; drv_list[i] != NULL; i++){
if (w > 50){
printf("\n; ");
w = 0;
}
printf("%s ", drv_list[i]);
w += strlen(drv_list[i]) + 1;
}
printf("\n");
startup_license(stdout);
printf("; Type `HELP' for description of the protocol.\n\n");
printf("(100 \"vflserver ready.\")\n");
fflush(stdout);
free(drv_list);
fontid_seq = 0;
for (i = 0; i < FONTID_TABLE_SIZE; i++)
fontid_table[i] = -1;
while (argc > 0){
run_init(argv[0], shrink);
--argc; argv++;
}
cmd_loop(stdin, 0, shrink);
quit();
return 0;
}
static void
startup_license(FILE *fp)
{
if (fp == NULL)
fp = stdout;
fprintf(fp,
"; Copyright (C) 1996-1999 by Hirotsugu Kakugawa\n"
"; All rights reserved.\n"
"; This program is distributed in the hope that it will be useful,\n"
"; but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
"; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
"; GNU General Public License for more details.\n");
}
static void
run_init(char *f, double shrink)
{
FILE *fp;
if ((fp = fopen(f, "r")) == NULL){
fprintf(stderr, "No such file: %s\n", f);
} else {
cmd_loop(fp, 1, shrink);
fclose(fp);
}
}
static void
quit(void)
{
printf("(100 \"Happy hacking.\")\n");
fflush(stdout);
}
static void
cmd_loop(FILE *fp, int echo, double shrink)
{
char cmdline[1024];
int val;
val = 0;
for (;;){
if (fgets(cmdline, sizeof(cmdline), fp) == NULL)
break;
if (echo == 1)
printf("%s", cmdline);
if ((val = exec_cmd(cmdline, shrink)) < 0){
quit();
exit(0);
}
fflush(stdout);
}
}
static int
exec_cmd(char *cmdline, double shrink)
{
char cmd[32], *args[MAX_ARGS];
int nargs, i, j, iarg, ret;
ret = 0;
iarg = 0;
while ((cmdline[iarg] != '\0') && isspace((int)cmdline[iarg]))
iarg++;
if (cmdline[iarg] == '\0')
return ret;
j = 0;
while ((cmdline[iarg] != '\0') && !isspace((int)cmdline[iarg]))
cmd[j++] = cmdline[iarg++];
cmd[j] = '\0';
for (i = 0; cmd[i] != '\0'; i++)
cmd[i] = toupper(cmd[i]);
nargs = parse_args(args, &cmdline[iarg]);
if (strcmp(cmd, "QUIT") == 0){
ret = -1;
} else if (strcmp(cmd, "OPEN1") == 0){
cmd_open1(args, nargs);
} else if (strcmp(cmd, "OPEN2") == 0){
cmd_open2(args, nargs);
} else if (strcmp(cmd, "CLOSE") == 0){
cmd_close(args, nargs);
} else if (strcmp(cmd, "BITMAP1") == 0){
cmd_bitmap1(args, nargs, shrink);
} else if (strcmp(cmd, "BITMAP2") == 0){
cmd_bitmap2(args, nargs, shrink);
} else if (strcmp(cmd, "METRIC1") == 0){
cmd_metric1(args, nargs);
} else if (strcmp(cmd, "METRIC2") == 0){
cmd_metric2(args, nargs);
} else if (strcmp(cmd, "FONTBBX1") == 0){
cmd_fontbbx1(args, nargs);
} else if (strcmp(cmd, "FONTBBX2") == 0){
cmd_fontbbx2(args, nargs);
} else if (strcmp(cmd, "PROPERTY") == 0){
cmd_prop(args, nargs);
} else if (strcmp(cmd, "PROTOCOL") == 0){
cmd_proto(args, nargs);
} else if (strcmp(cmd, "MINIMIZE-BBX") == 0){
cmd_minbbx(args, nargs);
} else if (strcmp(cmd, "COMMENT") == 0){
printf("100 Ok.\n");
} else if (strcmp(cmd, "DEBUG") == 0){
cmd_debug(args, nargs);
} else if (strcmp(cmd, "HELP") == 0){
cmd_help(args, nargs);
} else if (strcmp(cmd, "SLEEP") == 0){
cmd_sleep(args, nargs);
} else if (strcmp(cmd, "VERSION") == 0){
cmd_version(args, nargs);
} else if (strcmp(cmd, "VFLIB-VERSION") == 0){
cmd_vflib_version(args, nargs);
} else {
printf("(500 \"Error. Command unknown. (`HELP' for help.)\")\n");
}
return ret;
}
static int
parse_args(char **args, char *cmdline)
{
int argc, idx;
idx = 0;
for (argc = 0; argc < MAX_ARGS-1;){
while (isspace((int)cmdline[idx]))
idx++;
if (cmdline[idx] == '\0')
break;
args[argc] = &cmdline[idx];
argc++;
while (!isspace((int)cmdline[idx]) && (cmdline[idx] != '\0'))
idx++;
if (cmdline[idx] == '\0')
break;
cmdline[idx++] = '\0';
}
args[argc] = NULL;
return argc;
}
/* ------------------------------------------------------------- */
/*
* OPEN1 font [ point_size [ mag_x mag_y [ dpi_x dpi_y ]]]
*/
static int
cmd_open1(char **args, int nargs)
{
int font_id;
char *font;
double point_size, mag_x, mag_y, dpi_x, dpi_y;
if ((nargs != 1) && (nargs != 2) && (nargs != 4) && (nargs != 6)){
printf("500 What? %s\n",
"OPEN1 font [ point_size [ mag_x mag_y [ dpi_x dpi_y ]]]");
return -1;
}
font = NULL;
point_size = -1;
mag_x = 1;
mag_y = 1;
dpi_x = -1;
dpi_y = -1;
font = args[0];
if (nargs >= 2)
point_size = atof(args[1]);
if (nargs >= 4){
mag_x = atof(args[2]);
mag_y = atof(args[3]);
}
if (nargs >= 6){
dpi_x = atof(args[4]);
dpi_y = atof(args[5]);
}
font_id = VF_OpenFont1(font, dpi_x, dpi_y, point_size, mag_x, mag_y);
put_fontid(font_id);
if (font_id < 0){
printf("(551 \"Error. Can't open %s.\")\n", font);
return -1;
}
printf("(100 %d \"%s\")\n", font_id, font);
return 0;
}
/*
* OPEN2 font [ pixel_size [ mag_x mag_y ]]
*/
static int
cmd_open2(char **args, int nargs)
{
int font_id;
char *font;
int pixel_size;
double mag_x, mag_y;
if ((nargs != 1) && (nargs != 2) && (nargs != 4) ){
printf("500 What? %s\n",
"OPEN2 font [ pixel_size [ mag_x mag_y ]]");
return -1;
}
font = NULL;
pixel_size = -1;
mag_x = 1;
mag_y = 1;
font = args[0];
if (nargs >= 2)
sscanf(args[1], "%i", &pixel_size);
if (nargs >= 4){
mag_x = atof(args[2]);
mag_y = atof(args[3]);
}
font_id = VF_OpenFont2(font, pixel_size, mag_x, mag_y);
put_fontid(font_id);
if (font_id < 0){
printf("(551 \"Error. Can't open %s.\")\n", font);
return -1;
}
printf("(100 %d \"%s\")\n", font_id, font);
return 0;
}
/*
* CLOSE font-id
*/
static int
cmd_close(char **args, int nargs)
{
int font_id;
if (nargs != 1){
printf("500 What? %s\n", "CLOSE font-id");
return -1;
}
font_id = get_fontid(args[0]);
VF_CloseFont(font_id);
printf("(100 %d)\n", font_id);
return 0;
}
/*
* BITMAP1 font-id code_point [ mag_x mag_y ]
*/
static int
cmd_bitmap1(char **args, int nargs, double shrink)
{
int font_id, val;
long code_point;
double mag_x, mag_y;
VF_BITMAP bm, bm1;
if ((nargs != 2) && (nargs != 3) && (nargs != 4)){
printf("(500 \"Error. Usage:%s\")\n",
"BITMAP1 font-id char-code [ mag_x mag_y ]");
return -1;
}
font_id = -1;
code_point = 0;
mag_x = 1;
mag_y = 1;
font_id = get_fontid(args[0]);
sscanf(args[1], "%li", &code_point);
if (nargs == 3){
mag_x = mag_y = atof(args[2]);
} else if (nargs == 4){
mag_x = atof(args[2]);
mag_y = atof(args[3]);
}
bm = VF_GetBitmap1(font_id, code_point, mag_x, mag_y);
if (bm != NULL){
if (minimize_bbx_mode == 1){
bm1 = VF_MinimizeBitmap(bm);
val = cmd_bitmap_output(bm1, code_point, shrink);
VF_FreeBitmap(bm1);
VF_FreeBitmap(bm);
} else {
val = cmd_bitmap_output(bm, code_point, shrink);
VF_FreeBitmap(bm);
}
} else {
val = cmd_bitmap_output(bm, code_point, shrink);
}
return val;
}
/*
* BITMAP2 font-id code_point [ mag_x mag_y ]
*/
static int
cmd_bitmap2(char **args, int nargs, double shrink)
{
int font_id, val;
long code_point;
double mag_x, mag_y;
VF_BITMAP bm, bm1;
if ((nargs != 2) && (nargs != 3) && (nargs != 4)){
printf("(500 \"Error. Usage: %s\")\n",
"BITMAP2 font-id char-code [ mag_x mag_y ]");
return -1;
}
font_id = -1;
code_point = 0;
mag_x = 1;
mag_y = 1;
font_id = get_fontid(args[0]);
sscanf(args[1], "%li", &code_point);
if (nargs == 3){
mag_x = mag_y = atof(args[2]);
} else if (nargs == 4){
mag_x = atof(args[2]);
mag_y = atof(args[3]);
}
bm = VF_GetBitmap2(font_id, code_point, mag_x, mag_y);
if (bm != NULL){
if (minimize_bbx_mode == 1){
bm1 = VF_MinimizeBitmap(bm);
val = cmd_bitmap_output(bm1, code_point, shrink);
VF_FreeBitmap(bm1);
VF_FreeBitmap(bm);
} else {
val = cmd_bitmap_output(bm, code_point, shrink);
VF_FreeBitmap(bm);
}
} else {
val = cmd_bitmap_output(bm, code_point, shrink);
}
return val;
}
static int
cmd_bitmap_output(VF_BITMAP bm, long code_point, double shrink)
{
if (bm == NULL){
switch (vf_error){
case VF_ERR_ILL_FONTID:
printf("(550 \"Error. Illegal font-id.\")\n");
break;
case VF_ERR_INTERNAL:
printf("(550 \"Error. Internal error.\")\n");
break;
case VF_ERR_NO_MEMORY:
printf("(550 \"Error. No memory.\")\n");
break;
case VF_ERR_ILL_CODE_POINT:
printf("(550 \"Error. No such character %ld (0x%04lx).\")\n",
code_point, code_point);
break;
default:
printf("(550 \"Error. VFlib error code = %d.\")\n", vf_error);
}
return -1;
}
printf("(100 %d %d %d %d %d %d\n ",
bm->bbx_width, bm->bbx_height,
bm->off_x, bm->off_y, bm->mv_x, bm->mv_y);
dump_bitmap_hex(bm);
if (dump_bitmap_mode == 1)
dump_bitmap_char(bm, shrink);
printf(")\n");
return 0;
}
/*
* METRIC1 font-id code_point [ mag_x mag_y ]
*/
static int
cmd_metric1(char **args, int nargs)
{
int font_id;
long code_point;
double mag_x, mag_y;
VF_METRIC1 met;
if ((nargs != 2) || (nargs > 4)){
printf("(500 \"Error. Usage: %s\")\n",
"METRIC1 font-id code_point [ mag_x mag_y ]");
return -1;
}
font_id = -1;
code_point = 0;
mag_x = 1;
mag_y = 1;
font_id = get_fontid(args[0]);
sscanf(args[1], "%li", &code_point);
if (nargs == 3){
mag_x = mag_y = atof(args[2]);
} else if (nargs == 4){
mag_x = atof(args[2]);
mag_y = atof(args[3]);
}
if ((met = VF_GetMetric1(font_id, code_point, NULL, mag_x, mag_y)) == NULL){
printf("(550 \"Error. No metric.\")\n");
return -1;
}
printf("(100 %f %f %f %f %f %f)\n",
met->bbx_width, met->bbx_height,
met->off_x, met->off_y, met->mv_x, met->mv_y);
VF_FreeMetric1(met);
return 0;
}
/*
* METRIC2 font-id code_point [ mag_x mag_y ]
*/
static int
cmd_metric2(char **args, int nargs)
{
int font_id;
long code_point;
double mag_x, mag_y;
VF_METRIC2 met;
if ((nargs != 2) || (nargs > 4)){
printf("500 What? %s\n",
"METRIC2 font-id char-code [ mag_x mag_y ]");
return -1;
}
font_id = -1;
code_point = 0;
mag_x = 1;
mag_y = 1;
font_id = get_fontid(args[0]);
sscanf(args[1], "%li", &code_point);
if (nargs == 3){
mag_x = mag_y = atof(args[2]);
} else if (nargs == 4){
mag_x = atof(args[2]);
mag_y = atof(args[3]);
}
if ((met = VF_GetMetric2(font_id, code_point, NULL, mag_x, mag_y)) == NULL){
printf("(550 \"Error. No metric.\")\n");
return -1;
}
printf("(100 %d %d %d %d %d %d)\n",
met->bbx_width, met->bbx_height,
met->off_x, met->off_y, met->mv_x, met->mv_y);
VF_FreeMetric2(met);
return 0;
}
/*
* FONTBBX1 font-id [ mag_x mag_y ]
*/
static int
cmd_fontbbx1(char **args, int nargs)
{
int font_id;
double mag_x, mag_y;
double w, h, xoff, yoff;
if ((nargs != 1) || (nargs > 3)){
printf("(500 \"Error. Usage: %s\")\n",
"FONTBBX1 font-id [ mag_x mag_y ]");
return -1;
}
font_id = -1;
mag_x = 1;
mag_y = 1;
font_id = get_fontid(args[0]);
if (nargs == 2){
mag_x = mag_y = atof(args[1]);
} else if (nargs == 3){
mag_x = atof(args[1]);
mag_y = atof(args[2]);
}
if (VF_GetFontBoundingBox1(font_id, mag_x, mag_y,
&w, &h, &xoff, &yoff) < 0){
printf("(550 \"Error. No font bounding box information.\")\n");
return -1;
}
printf("(100 %f %f %f %f)\n", w, h, xoff, yoff);
return 0;
}
/*
* FONTBBX2 font-id [ mag_x mag_y ]
*/
static int
cmd_fontbbx2(char **args, int nargs)
{
int font_id;
double mag_x, mag_y;
int w, h, xoff, yoff;
if ((nargs != 1) || (nargs > 3)){
printf("(500 \"Error. Usage: %s\")\n",
"FONTBBX2 font-id [ mag_x mag_y ]");
return -1;
}
font_id = -1;
mag_x = 1;
mag_y = 1;
font_id = get_fontid(args[0]);
if (nargs == 2){
mag_x = mag_y = atof(args[1]);
} else if (nargs == 3){
mag_x = atof(args[1]);
mag_y = atof(args[2]);
}
if (VF_GetFontBoundingBox2(font_id, mag_x, mag_y,
&w, &h, &xoff, &yoff) < 0){
printf("(550 \"Error. No font bounding box information.\")\n");
return -1;
}
printf("(100 %d %d %d %d)\n", w, h, xoff, yoff);
return 0;
}
/*
* PROPERTY font-id property
*/
static int
cmd_prop(char **args, int nargs)
{
int font_id;
char *prop, *value;
if (nargs != 2){
printf("(500 \"Error. Usage: %s\")\n",
"PROPERTY font-id property");
return -1;
}
font_id = get_fontid(args[0]);
prop = args[1];
if ((value = VF_GetFontProp(font_id, prop)) == NULL){
printf("(550 \"Error. No such property: %s\")\n", prop);
return -1;
}
printf("(100 \"%s\" \"%s\")\n", prop, value);
free(value);
return 0;
}
/*
* MINIMIZE-BBX [flag]
*/
static int
cmd_minbbx(char **args, int nargs)
{
char *res;
int val;
if (nargs != 1){
printf("(500 \"Error. Usage: %s\")\n",
"MINIMIZE-BBX [flag]");
return -1;
}
res = "100";
val = 0;
str_toupper(args[0]);
if ( (strcmp(args[0], "0") == 0)
|| (strcmp(args[0], "OFF") == 0)
|| (strcmp(args[0], "NO") == 0)){
minimize_bbx_mode = 0;
} else if ( (strcmp(args[0], "1") == 0)
|| (strcmp(args[0], "ON") == 0)
|| (strcmp(args[0], "YES") == 0)){
minimize_bbx_mode = 1;
} else {
res = "500";
val = -1;
}
printf("(%s \"%s\")\n", res, minimize_bbx_mode?"ON":"OFF");
return val;
}
static void
put_fontid(int fontid)
{
if (fontid_seq < FONTID_TABLE_SIZE)
fontid_table[fontid_seq++] = fontid;
}
static int
get_fontid(char *s)
{
int fontid, h;
fontid = -1;
if (s[0] == '!'){ /* font id by history */
if (strcmp(s, "!!") == 0){ /* "!!" : the latest font id */
if ((fontid_seq > 0) && (fontid_seq < FONTID_TABLE_SIZE))
fontid = fontid_table[fontid_seq-1];
} else { /* "!i" : font id for i-th VF_OpenFontX() */
sscanf(&s[1], "%i", &h);
if ((h >= 0) && (h < FONTID_TABLE_SIZE))
fontid = fontid_table[h];
}
} else { /* font id by number */
sscanf(s, "%i", &fontid);
}
return fontid;
}
/*
* PROTOCOL
*/
static int
cmd_proto(char **args, int nargs)
{
printf("(100 \"%s\")\n", PROTOCOL_VERSION);
return 0;
}
/*
* SLEEP [sec]
*/
static int
cmd_sleep(char **args, int nargs)
{
int t;
t = 1;
if (args[0] != NULL){
if ((t = atoi(args[0])) < 1)
t = 1;
}
sleep(t);
printf("(100 %d)\n", t);
return 0;
}
/*
* VERSION
*/
static int
cmd_version(char **args, int nargs)
{
printf("(100 \"%s\")\n", VERSION);
return 0;
}
/*
* VFlib VERSION
*/
static int
cmd_vflib_version(char **args, int nargs)
{
printf("(100 \"%s\")\n", VF_GetVersion());
return 0;
}
extern void VF_DumpFontTable(void);
/*
* DEBUG [category]
*/
static int
cmd_debug(char **args, int nargs)
{
if (args[0] != NULL){
str_toupper(args[0]);
if (strcmp(args[0], "BITMAP") == 0){
dump_bitmap_mode = 1 - dump_bitmap_mode;
printf("(100 \"Ascii-art bitmap %s.\")\n",
(dump_bitmap_mode==1)?"on":"off");
} else if (strcmp(args[0], "DUMPFONTS") == 0){
VF_DumpFontTable();
} else {
printf("(500 \"Error.\")\n");
return -1;
}
} else {
printf("(500 \"Error. Debug what? (Type `HELP' for help.)\")\n");
}
return 0;
}
/*
* HELP
*/
static void cmd_help_open1(void), cmd_help_open2(void);
static void cmd_help_close(void);
static void cmd_help_bitmap1(void), cmd_help_bitmap2(void);
static void cmd_help_metric1(void), cmd_help_metric2(void);
static void cmd_help_fontbbx1(void), cmd_help_fontbbx2(void);
static void cmd_help_property(void);
static void cmd_help_minbbx(void), cmd_help_protocol(void);
static void cmd_help_quit(void), cmd_help_version(void);
static void cmd_help_debug(void), cmd_help_sleep(void);
static void cmd_help_help(void);
struct s_help {
char *cmd_name;
void (*help_func)(void);
};
static struct s_help helpers[] = {
{"OPEN1", cmd_help_open1}, {"OPEN2", cmd_help_open2},
{"CLOSE", cmd_help_close},
{"BITMAP1", cmd_help_bitmap1}, {"BITMAP2", cmd_help_bitmap2},
{"METRIC1", cmd_help_metric1}, {"METRIC2", cmd_help_metric2},
{"FONTBBX1", cmd_help_fontbbx1}, {"FONTBBX2", cmd_help_fontbbx2},
{"PROPERTY", cmd_help_property}, {"MINIMIZE-BBX", cmd_help_minbbx},
{"PROTOCOL", cmd_help_protocol}, {"QUIT", cmd_help_quit},
{"VERSION", cmd_help_version}, {"DEBUG", cmd_help_debug},
{"HELP", cmd_help_help}, {"SLEEP", cmd_help_sleep}, {"?", cmd_help_help},
{NULL, NULL} };
static int
cmd_help(char **args, int nargs)
{
if (nargs == 0){
printf("; Help keywords:\n");
printf("; OPEN1, OPEN2, CLOSE, BITMAP1, BITMAP2, METRIC1, METRIC2\n");
printf("; FONTBBX1 FONTBBX2 PROPERTY, MINIMIZE-BBX, PROTOCOL, QUIT\n");
printf("; VERSION, DEBUG, HELP, SLEEP\n");
printf("; HELP ? --- for more information on command list.\n");
printf("; HELP KEY --- help on KEY listed above.\n");
printf("; Each command returns result with status value (3 digits) \n");
printf("; followed by a command-specific result sequence.\n");
printf("(100 \"Ok.\")\n");
} else {
int i, c;
int found;
for (i = 0; args[0][i] != '\0'; i++)
args[0][i] = toupper(args[0][i]);
found = 0;
c = 0;
while (helpers[c].cmd_name != NULL){
if (strcmp(helpers[c].cmd_name, args[0]) == 0){
found = 1;
break;
}
c++;
}
if (found == 0){
printf("; Unknown help for \"%s\"\n", args[0]);
cmd_help(NULL, 0);
} else {
(*helpers[c].help_func)();
printf("(100 \"Ok.\")\n");
}
}
return 0;
}
static void
cmd_help_help(void)
{
printf("; The following commands are recognized.\n");
printf("; OPEN1 font [ point-size [ mag_x mag_y [ dpi_x dpi_y ]]]\n");
printf("; OPEN2 font [ pixel-size [ mag_x mag_y ]]\n");
printf("; CLOSE font-id\n");
printf("; BITMAP1 font-id code_point [ mag_x mag_y ]\n");
printf("; BITMAP2 font-id code_point [ mag_x mag_y ]\n");
printf("; METRIC1 font-id code_point [ mag_x mag_y ]\n");
printf("; METRIC2 font-id code_point [ mag_x mag_y ]\n");
printf("; FONTBBX1 font-id [ mag_x mag_y ]\n");
printf("; FONTBBX2 font-id [ mag_x mag_y ]\n");
printf("; PROPERTY font-id property\n");
printf("; MINIMIZE-BBX [flag]\n");
printf("; PROTOCOL\n");
printf("; QUIT\n");
printf("; VERSION\n");
printf("; DEBUG [category]\n");
printf("; HELP [category]\n");
printf("; SLEEP [sec]\n");
printf("; HELP CMDS --- help on CMDS\n");
printf("; Each command returns result with status value (3 digits) \n");
printf("; followed by a command-specific result sequence.\n");
}
static void
cmd_help_open1(void)
{
printf("; OPEN1 font [ point-size [ mag_x mag_y [ dpi_x dpi_y ]]]\n");
printf("; --- Open a font named FONT in mode 1. \n");
printf("; It's parameters are point size (POINT_SIZE),\n");
printf("; magnification factors (MAG_X, MAG_Y), and device \n");
printf("; resolutions in DPI (DPI_X, DPI_Y). If these parameters\n");
printf("; are omitted, default values of the font are used.\n");
printf("; This command returns a font identifier in integer, if\n");
printf("; a requested font is successfully opened.\n");
}
static void
cmd_help_open2(void)
{
printf("; OPEN2 font [ pixel-size [ mag_x mag_y ]]\n");
printf("; --- Open a font named FONT in mode 1. \n");
printf("; It's parameters are pixel size (PIXEL_SIZE),\n");
printf("; magnification factors (MAG_X, MAG_Y). If these parameters\n");
printf("; are omitted, default values of the font are used.\n");
printf("; This command returns a font identifier in integer, if\n");
printf("; a requested font is successfully opened.\n");
}
static void
cmd_help_close(void)
{
printf("; CLOSE font-id\n");
printf("; --- Close an opened font of FONT_ID.\n");
}
static void
cmd_help_bitmap1(void)
{
printf("; BITMAP1 font-id code_point [ mag_x mag_y ]\n");
printf("; --- Get a bitmap of a character CODE_POINT in a FONT_ID.\n");
printf("; FONT_ID must be in mode 1.\n");
printf("; This command returns Bw Bh Rx Ry Mx My BM\n");
printf("; - Bw (width) and Bh (height) form a bounding-box of a bitmap,\n");
printf("; (in pixel).\n");
printf("; - Rx and Ry form a vector from the reference point of \n");
printf("; a bitmap to the upper left corner of a bitmap (in pixel).\n");
printf("; - Mx and My form a vector from the reference point to the next\n");
printf("; next reference point (in pixel).\n");
printf("; - BM is the bitmap, starting from top line of a bitmap to \n");
printf("; the bottom. Each line starts from left to right, 1 bit per\n");
printf("; pixel, padding is 8 pixels. Leftmost pixel in 8 pixel\n");
printf("; packet has 0x80 weight, rightmost one has 0x01.\n");
}
static void
cmd_help_bitmap2(void)
{
printf("; BITMAP2 font-id code_point [ mag_x mag_y ]\n");
printf("; --- Get a bitmap of a character CODE_POINT in a FONT_ID.\n");
printf("; FONT_ID must be in mode 2.\n");
printf("; This command returns Bw Bh Rx Ry Mx My BM\n");
printf("; See help on BITMAP1 for return values.\n");
}
static void
cmd_help_metric1(void)
{
printf("; METRIC1 font-id code_point [ mag_x mag_y ]\n");
printf("; --- Get a metric of a character CODE_POINT in a FONT_ID.\n");
printf("; FONT_ID must be in mode 1.\n");
printf("; This command returns Bw Bh Rx Ry Mx My\n");
printf("; See help on BITMAP1 for return values, *except* units are\n");
printf("; points.\n");
}
static void
cmd_help_metric2(void)
{
printf("; METRIC2 font-id code_point [ mag_x mag_y ]\n");
printf("; --- Get a metric of a character CODE_POINT in a font FONT_ID.\n");
printf("; FONT_ID must be in mode 2.\n");
printf("; This command returns Bw Bh Rx Ry Mx My\n");
printf("; See help on BITMAP1 for return values. (Units are\n");
printf("; pixel.)\n");
}
static void
cmd_help_fontbbx1(void)
{
printf("; FONTBBX1 font-id [ mag_x mag_y ]\n");
printf("; --- Get font bounding information of a font FONT_ID.\n");
printf("; FONT_ID must be in mode 1.\n");
printf("; This command returns W H XOFF YOFF\n");
printf("; - W, H are max width, height, respectively.\n");
printf("; - XOFF and YOFF form a max vector from the reference point to\n");
printf("; lower left corner of a bounding box.\n");
printf("; These units are point.\n");
}
static void
cmd_help_fontbbx2(void)
{
printf("; FONTBBX2 font-id [ mag_x mag_y ]\n");
printf("; --- Get font bounding information of a font FONT_ID.\n");
printf("; FONT_ID must be in mode 2.\n");
printf("; This command returns W H XOFF YOFF\n");
printf("; - W, H are max width, height, respectively.\n");
printf("; - XOFF and YOFF form a max vector from the reference point to\n");
printf("; lower left corner of a bounding box.\n");
printf("; These units are pixel.\n");
}
static void
cmd_help_property(void)
{
printf("; PROPERTY font-id property_name\n");
printf("; --- Get a property value of PROPERTY_NAME of a font FONT_ID.\n");
printf("; This command returns property value in string.\n");
}
static void
cmd_help_minbbx(void)
{
printf("; MINIMIZE-BBX [flag]\n");
printf("; --- Followed BITAMAP1 and BITMAP2 commands return `minimized'\n");
printf("; bitmap, in a sense that no smaller bounding box can contain\n");
printf("; all black pixels.\n");
}
static void
cmd_help_protocol(void)
{
printf("; PROTOCOL\n");
printf("; --- Return protocol version string.\n");
}
static void
cmd_help_quit(void)
{
printf("; QUIT\n");
printf("; --- Quit vflserver.\n");
}
static void
cmd_help_version(void)
{
printf("; VERSION\n");
printf("; --- Print version of vflserver.\n");
}
static void
cmd_help_debug(void)
{
printf("; DEBUG [category]\n");
printf("; --- Set debug mode on CATEGORY.\n");
printf("; Categories:\n");
printf("; - BITMAP - print obtained bitmaps by BITMAP1 and BITMAP2\n");
printf("; in ASCII art form.\n");
printf("; Currently, only BITMAP is defined for debug category\n");
}
static void
cmd_help_sleep(void)
{
printf("; SLEEP [sec]\n");
printf("; --- Sleep for SEC seconds.\n");
}
static void
dump_bitmap_hex(VF_BITMAP bm)
{
int x, y, b;
unsigned char *p;
printf("\"");
b = 0;
for (y = 0; y < bm->bbx_height; y++){
p = &bm->bitmap[y * bm->raster];
for (x = 0; x < (bm->bbx_width+7)/8; x++){
printf("%02x", p[x]);
b++;
}
}
printf("\"");
}
static void
dump_bitmap_char(VF_BITMAP bm, double shrink)
{
printf("\n\"\n");
vf_dump_bitmap(bm);
printf("\"");
}
static void
str_toupper(char *s)
{
while (*s){
*s = toupper(*s);
s++;
}
}
/*EOF*/
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