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ancient-weatherstation/cronjob/chart/image_file/image_config.c

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/*
image_config.c -- Part of Chart-generator for the weatherstation
Copyright (C) 2006 Jan Losinski
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 of the License, 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.
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include "../common.h"
#include "../config.h"
#include "image_common.h"
#define BUFFSIZE 512
/* Funktionsdefinitionen */
static int read_time(const char *, void *);
static int read_color(const char *, void *);
static int read_double(const char *, void *);
static int read_fmt_str(const char *, void *);
static int read_date(const char *, void *);
/* Zuordnung zwischen Schluesselwoertern in der Config, Der Funktion, die diese auswertet
* und dem eld in der Options-Struktur */
static const config_keyword keywords[] = {
/* keyword handler variable address default */
{"filename", read_str, &(img_cfg.file_name), ""},
{"use_dflt_img_dir", read_yn, &(img_cfg.dflt_dir), DEFAULT_LABEL_SUM},
{"headline", read_str, &(img_cfg.headline), DEFAULT_HEADLINE},
{"table_field", read_str, &(img_cfg.table_field), DEFAULT_TABLE_FIELD},
{"manual_table", read_yn, &(img_cfg.manual_table), DEFAULT_MANUAL_TABLE},
{"manual_table_name", read_str, &(img_cfg.table_name), ""},
{"gen_interval", read_time, &(img_cfg.gen_interval), DEFAULT_GEN_INTERVAL},
{"show_interval", read_time, &(img_cfg.show_interval), DEFAULT_SHOW_INTERVAL},
{"label_interval", read_time, &(img_cfg.label_interval), DEFAULT_LABEL_INTERVAL},
{"fixed_timepoint", read_yn, &(img_cfg.fix_timepoint), DEFAULT_FIX_TIMEPOINT},
{"timepoint", read_date, &(img_cfg.timepoint), DEFAULT_TIMEPOINT},
{"label_sum", read_yn, &(img_cfg.label_sum), DEFAULT_LABEL_SUM},
{"width", read_int, &(img_cfg.width), DEFAULT_WIDTH},
{"height", read_int, &(img_cfg.height), DEFAULT_HEIGHT},
{"unit", read_str, &(img_cfg.unit), DEFAULT_UNIT},
{"sensor_id", read_int, &(img_cfg.sens_id), DEFAULT_SENS_ID},
{"zero_min", read_yn, &(img_cfg.zero_min), DEFAULT_ZERO_MIN},
{"as_bars", read_yn, &(img_cfg.bars), DEFAULT_AS_BARS},
{"show_average", read_yn, &(img_cfg.show_average), DEFAULT_SHOW_AVERAGE},
{"x_axis_desc", read_str, &(img_cfg.x_desc), DEFAULT_X_AX_DESC},
{"y_axis_desc", read_str, &(img_cfg.y_desc), DEFAULT_Y_AX_DESC},
{"x_format", read_fmt_str, &(img_cfg.x_fmt), DEFAULT_X_FORMAT},
{"x_format_extra", read_fmt_str, &(img_cfg.x_fmt_extra), DEFAULT_X_FORMAT_EXTRA},
{"value_koeffizient", read_double, &(img_cfg.val_koeff), DEFAULT_VAL_KOEFF},
{"bg_color", read_color, &(img_cfg.bg_color), DEFAULT_BG_COLOR},
{"dia_bg_color", read_color, &(img_cfg.dia_bg_color), DEFAULT_DIA_BG_COLOR},
{"dia_line_color", read_color, &(img_cfg.dia_line_color), DEFAULT_DIA_LINE_COLOR},
{"dia_av_line_color", read_color, &(img_cfg.dia_av_line_color), DEFAULT_DIA_AV_LINE_COLOR},
{"dia_grid_x_color", read_color, &(img_cfg.dia_grid_x_color), DEFAULT_DIA_GRID_X_COLOR},
{"dia_grid_y_color", read_color, &(img_cfg.dia_grid_y_color), DEFAULT_DIA_GRID_Y_COLOR},
{"dia_border_color", read_color, &(img_cfg.dia_border_color), DEFAULT_DIA_BORDER_COLOR},
{"zero_line_color", read_color, &(img_cfg.zero_line_color), DEFAULT_ZERO_LINE_COLOR},
{"headline_color", read_color, &(img_cfg.headline_color), DEFAULT_HEADLINE_COLOR},
{"label_x_color", read_color, &(img_cfg.label_x_color), DEFAULT_LABEL_X_COLOR},
{"label_extra_x_color", read_color, &(img_cfg.label_extra_x_color), DEFAULT_LABEL_EXTRA_X_COLOR},
{"label_y_color", read_color, &(img_cfg.label_y_color), DEFAULT_LABEL_Y_COLOR},
{"descr_y_color", read_color, &(img_cfg.desc_y_color), DEFAULT_DESCR_X_COLOR},
{"descr_x_color", read_color, &(img_cfg.desc_x_color), DEFAULT_DESCR_Y_COLOR},
{"", NULL, NULL, ""}
};
/* Einen Zeit - Format - String lesen */
static int read_fmt_str(const char *line, void *arg){
char **dest = arg;
char *new_line = NULL;
char *temp = malloc(sizeof(char)*BUFFSIZE);
char *p;
read_str(line, &new_line);
if(new_line != NULL){
p = strchr(new_line, '|');
if(p != NULL){ /* Wenn ein | gefunden wurde */
strcpy(p, "\0"); /* dann diesen durch ein Stringende ersetzen */
strcpy(temp, new_line); /* Das Srueck vor dem | in einen Puffer schreiben */
strcat(temp, "\r\n"); /* ein zeilenumbruch mit Wagenruecklauf einfuegen */
strcat(temp, p+1); /* das stueck hinter dem | anfuegen */
} else {
strcpy(temp, new_line); /* Wenn kein | gefunden, dann den ganzen String in den Puffer */
}
if (*dest) free(*dest);
*dest = strdup(temp);
free(new_line);
}
free(temp);
return 1;
}
/* Liest ein double ein */
static int read_double(const char *line, void *arg){
double *dest = arg;
*dest = atof(line);
return 1;
}
/* Liest eine Farbe ein
* Format: rr:gg:bb:aa */
static int read_color(const char *line, void *arg){
img_color_ptr *col = arg;
img_color_ptr tmp = NULL;
char *buff = malloc(sizeof(char)*3);
if(strlen(line) == 11){ /* Wenn String auch wirkle 11 Zeichen lang */
if (strchr(line, ':') != NULL){ /* und min. 1 : vorkommt */
strcpy(buff, "00\0");
tmp = malloc(sizeof(img_color_t)); /* Neues Farbelement allocieren */
tmp->r = strtol(strncpy(buff, line, 2), NULL, 16); /* r */
tmp->g = strtol(strncpy(buff, line+3, 2), NULL, 16); /* g */
tmp->b = strtol(strncpy(buff, line+6, 2), NULL, 16); /* b */
tmp->alpha = strtol(strncpy(buff, line+9, 2), NULL, 16); /* alpha */
DEBUGOUT5(" Farbe gelesen: rot:%2x gelb:%2x gruen:%2x mit alpha:%2x\n", tmp->r, tmp->b, tmp->g, tmp->alpha) ;
}
}
*col = tmp;
free(buff);
return 1;
}
/* Ein Interval einlesen.
* wandelt Zeitangaben von der Form:
* 10s 10m 10h 10d 10y
* in Sekunden-Werte um */
static int read_time(const char *line, void *arg){
long *dest = arg;
long mult = 0;
char *p = NULL;
char *tmp = strdup(line);
p = strchr(tmp, '\0'); /* P auf das ende des Strings setzen */
if(p != NULL){
switch( *(p - 1) ){ /* Letztes Zeichen pruefen */
case 's': /* Sekunden */
mult = 1;
break;
case 'm': /* Minuten */
mult = 60;
break;
case 'h': /* Stunden */
mult = 3600;
break;
case 'd': /* Tage */
mult = 86400;
break;
case 'y': /* Jahre */
mult = 31536000;
break;
default:
break;
}
if( mult ){
strcpy(p - 1, "\0");
} else {
mult = 1;
}
}
*dest = atol(tmp) * mult;
return 1;
}
/* Liest das Datum, an dem die Bilder-generierung
* 'festgemacht' werden soll.
* Format: yyyy-mm-dd-hh-mm */
static int read_date(const char *line, void *arg){
struct tm timestruct;
long *dest = arg;
char *buff = malloc(sizeof(char)*5);
time_t temp = 0;
if(line == NULL){
*dest = 0;
free(buff);
return 1;
}
if(strlen(line) != 16){
DEBUGOUT2(" Invalid Date-String '%s'!\n", line);
*dest = 0;
free(buff);
return 1;
} else {
timestruct.tm_sec = 0;
timestruct.tm_isdst = -1;
strcpy(buff, "0000\0");
timestruct.tm_year = (atol(strncpy(buff, line, 4)) - 1901);
strcpy(buff, "00\0");
timestruct.tm_mon = atol(strncpy(buff, line+5, 2));
timestruct.tm_mday = atol(strncpy(buff, line+8, 2));
timestruct.tm_hour = atol(strncpy(buff, line+11, 2));
timestruct.tm_min = atol(strncpy(buff, line+14, 2));
temp = mktime(&timestruct);
DEBUGOUT2(" Datum gelesen: %s\n", ctime(&temp));
}
*dest = temp;
free(buff);
return 1;
}
/* Liest ein Bild-Configfile */
int get_image_cfg(char *file){
int ret_var;
char *buff;
/* Config - URL zusammenbauen */
buff = malloc(sizeof(char)*(strlen(file)+strlen(global_opts.image_cfg_location)+1));
buff = strcpy(buff, global_opts.image_cfg_location);
buff = strcat(buff, file);
DEBUGOUT2("\nLese Config-File: '%s' \n", buff);
/* File einlesen */
ret_var = read_config(buff, 1, keywords);
return ret_var;
}
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