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1cf4802c1d
mpv/m_property.c
Uoti Urpala 00323c06e2 Delete things related to old translation system 
Remove the help/ subdirectory, configure code to create toplevel
help_mp.h, and all the '#include "help_mp.h"' lines from .c files.
2010-03-10 03:47:14 +02:00

402 lines
12 KiB
C
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/*
* This file is part of MPlayer.
*
* MPlayer 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.
*
* MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/// \file
/// \ingroup Properties
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <inttypes.h>
#include <unistd.h>
#include "m_option.h"
#include "m_property.h"
#include "mp_msg.h"
#define ROUND(x) ((int)((x)<0 ? (x)-0.5 : (x)+0.5))
static int do_action(const m_option_t* prop_list, const char* name,
int action, void* arg, void *ctx) {
const char* sep;
const m_option_t* prop;
m_property_action_t ka;
int r;
if((sep = strchr(name,'/')) && sep[1]) {
int len = sep-name;
char base[len+1];
memcpy(base,name,len);
base[len] = 0;
prop = m_option_list_find(prop_list, base);
ka.key = sep+1;
ka.action = action;
ka.arg = arg;
action = M_PROPERTY_KEY_ACTION;
arg = &ka;
} else
prop = m_option_list_find(prop_list, name);
if(!prop) return M_PROPERTY_UNKNOWN;
r = ((m_property_ctrl_f)prop->p)(prop,action,arg,ctx);
if(action == M_PROPERTY_GET_TYPE && r < 0) {
if(!arg) return M_PROPERTY_ERROR;
*(const m_option_t**)arg = prop;
return M_PROPERTY_OK;
}
return r;
}
int m_property_do(const m_option_t* prop_list, const char* name,
int action, void* arg, void *ctx) {
const m_option_t* opt;
void* val;
char* str;
int r;
switch(action) {
case M_PROPERTY_PRINT:
if((r = do_action(prop_list,name,M_PROPERTY_PRINT,arg,ctx)) >= 0)
return r;
// fallback on the default print for this type
case M_PROPERTY_TO_STRING:
if((r = do_action(prop_list,name,M_PROPERTY_TO_STRING,arg,ctx)) !=
M_PROPERTY_NOT_IMPLEMENTED)
return r;
// fallback on the options API. Get the type, value and print.
if((r = do_action(prop_list,name,M_PROPERTY_GET_TYPE,&opt,ctx)) <= 0)
return r;
val = calloc(1,opt->type->size);
if((r = do_action(prop_list,name,M_PROPERTY_GET,val,ctx)) <= 0) {
free(val);
return r;
}
if(!arg) return M_PROPERTY_ERROR;
str = m_option_print(opt,val);
free(val);
*(char**)arg = str == (char*)-1 ? NULL : str;
return str != (char*)-1;
case M_PROPERTY_PARSE:
// try the property own parsing func
if((r = do_action(prop_list,name,M_PROPERTY_PARSE,arg,ctx)) !=
M_PROPERTY_NOT_IMPLEMENTED)
return r;
// fallback on the options API, get the type and parse.
if((r = do_action(prop_list,name,M_PROPERTY_GET_TYPE,&opt,ctx)) <= 0)
return r;
if(!arg) return M_PROPERTY_ERROR;
val = calloc(1,opt->type->size);
if((r = m_option_parse(opt,opt->name,arg,val,M_CONFIG_FILE)) <= 0) {
free(val);
return r;
}
r = do_action(prop_list,name,M_PROPERTY_SET,val,ctx);
m_option_free(opt,val);
free(val);
return r;
}
return do_action(prop_list,name,action,arg,ctx);
}
char* m_properties_expand_string(const m_option_t* prop_list,char* str, void *ctx) {
int l,fr=0,pos=0,size=strlen(str)+512;
char *p = NULL,*e,*ret = malloc(size), num_val;
int skip = 0, lvl = 0, skip_lvl = 0;
while(str[0]) {
if(str[0] == '\\') {
int sl = 1;
switch(str[1]) {
case 'e':
p = "\x1b", l = 1; break;
case 'n':
p = "\n", l = 1; break;
case 'r':
p = "\r", l = 1; break;
case 't':
p = "\t", l = 1; break;
case 'x':
if(str[2]) {
char num[3] = { str[2], str[3], 0 };
char* end = num;
num_val = strtol(num,&end,16);
sl = end-num;
l = 1;
p = &num_val;
} else
l = 0;
break;
default:
p = str+1, l = 1;
}
str+=1+sl;
} else if(lvl > 0 && str[0] == ')') {
if(skip && lvl <= skip_lvl) skip = 0;
lvl--, str++, l = 0;
} else if(str[0] == '$' && str[1] == '{' && (e = strchr(str+2,'}'))) {
int pl = e-str-2;
char pname[pl+1];
memcpy(pname,str+2,pl);
pname[pl] = 0;
if(m_property_do(prop_list, pname,
M_PROPERTY_PRINT, &p, ctx) >= 0 && p)
l = strlen(p), fr = 1;
else
l = 0;
str = e+1;
} else if(str[0] == '?' && str[1] == '(' && (e = strchr(str+2,':'))) {
lvl++;
if(!skip) {
int is_not = str[2] == '!';
int pl = e - str - (is_not ? 3 : 2);
char pname[pl+1];
memcpy(pname, str + (is_not ? 3 : 2), pl);
pname[pl] = 0;
if(m_property_do(prop_list,pname,M_PROPERTY_GET,NULL,ctx) < 0) {
if (!is_not)
skip = 1, skip_lvl = lvl;
}
else if (is_not)
skip = 1, skip_lvl = lvl;
}
str = e+1, l = 0;
} else
p = str, l = 1, str++;
if(skip || l <= 0) continue;
if(pos+l+1 > size) {
size = pos+l+512;
ret = realloc(ret,size);
}
memcpy(ret+pos,p,l);
pos += l;
if(fr) free(p), fr = 0;
}
ret[pos] = 0;
return ret;
}
void m_properties_print_help_list(const m_option_t* list) {
char min[50],max[50];
int i,count = 0;
mp_tmsg(MSGT_CFGPARSER, MSGL_INFO, "\n Name Type Min Max\n\n");
for(i = 0 ; list[i].name ; i++) {
const m_option_t* opt = &list[i];
if(opt->flags & M_OPT_MIN)
sprintf(min,"%-8.0f",opt->min);
else
strcpy(min,"No");
if(opt->flags & M_OPT_MAX)
sprintf(max,"%-8.0f",opt->max);
else
strcpy(max,"No");
mp_msg(MSGT_CFGPARSER, MSGL_INFO, " %-20.20s %-15.15s %-10.10s %-10.10s\n",
opt->name,
opt->type->name,
min,
max);
count++;
}
mp_tmsg(MSGT_CFGPARSER, MSGL_INFO, "\nTotal: %d properties\n", count);
}
// Some generic property implementations
int m_property_int_ro(const m_option_t* prop,int action,
void* arg,int var) {
switch(action) {
case M_PROPERTY_GET:
if(!arg) return 0;
*(int*)arg = var;
return 1;
}
return M_PROPERTY_NOT_IMPLEMENTED;
}
int m_property_int_range(const m_option_t* prop,int action,
void* arg,int* var) {
switch(action) {
case M_PROPERTY_SET:
if(!arg) return 0;
M_PROPERTY_CLAMP(prop,*(int*)arg);
*var = *(int*)arg;
return 1;
case M_PROPERTY_STEP_UP:
case M_PROPERTY_STEP_DOWN:
*var += (arg ? *(int*)arg : 1) *
(action == M_PROPERTY_STEP_DOWN ? -1 : 1);
M_PROPERTY_CLAMP(prop,*var);
return 1;
}
return m_property_int_ro(prop,action,arg,*var);
}
int m_property_choice(const m_option_t* prop,int action,
void* arg,int* var) {
switch(action) {
case M_PROPERTY_STEP_UP:
case M_PROPERTY_STEP_DOWN:
*var += action == M_PROPERTY_STEP_UP ? 1 : prop->max;
*var %= (int)prop->max+1;
return 1;
}
return m_property_int_range(prop,action,arg,var);
}
int m_property_flag_ro(const m_option_t* prop,int action,
void* arg,int var) {
switch(action) {
case M_PROPERTY_PRINT:
if(!arg) return 0;
*(char**)arg = strdup((var > prop->min) ?
mp_gtext("enabled") : mp_gtext("disabled"));
return 1;
}
return m_property_int_ro(prop,action,arg,var);
}
int m_property_flag(const m_option_t* prop,int action,
void* arg,int* var) {
switch(action) {
case M_PROPERTY_STEP_UP:
case M_PROPERTY_STEP_DOWN:
*var = *var == prop->min ? prop->max : prop->min;
return 1;
case M_PROPERTY_PRINT:
return m_property_flag_ro(prop, action, arg, *var);
}
return m_property_int_range(prop,action,arg,var);
}
int m_property_float_ro(const m_option_t* prop,int action,
void* arg,float var) {
switch(action) {
case M_PROPERTY_GET:
if(!arg) return 0;
*(float*)arg = var;
return 1;
case M_PROPERTY_PRINT:
if(!arg) return 0;
*(char**)arg = malloc(20);
sprintf(*(char**)arg,"%.2f",var);
return 1;
}
return M_PROPERTY_NOT_IMPLEMENTED;
}
int m_property_float_range(const m_option_t* prop,int action,
void* arg,float* var) {
switch(action) {
case M_PROPERTY_SET:
if(!arg) return 0;
M_PROPERTY_CLAMP(prop,*(float*)arg);
*var = *(float*)arg;
return 1;
case M_PROPERTY_STEP_UP:
case M_PROPERTY_STEP_DOWN:
*var += (arg ? *(float*)arg : 0.1) *
(action == M_PROPERTY_STEP_DOWN ? -1 : 1);
M_PROPERTY_CLAMP(prop,*var);
return 1;
}
return m_property_float_ro(prop,action,arg,*var);
}
int m_property_delay(const m_option_t* prop,int action,
void* arg,float* var) {
switch(action) {
case M_PROPERTY_PRINT:
if(!arg) return 0;
*(char**)arg = malloc(20);
sprintf(*(char**)arg,"%d ms",ROUND((*var)*1000));
return 1;
default:
return m_property_float_range(prop,action,arg,var);
}
}
int m_property_double_ro(const m_option_t* prop,int action,
void* arg,double var) {
switch(action) {
case M_PROPERTY_GET:
if(!arg) return 0;
*(double*)arg = var;
return 1;
case M_PROPERTY_PRINT:
if(!arg) return 0;
*(char**)arg = malloc(20);
sprintf(*(char**)arg,"%.2f",var);
return 1;
}
return M_PROPERTY_NOT_IMPLEMENTED;
}
int m_property_time_ro(const m_option_t* prop,int action,
void* arg,double var) {
switch(action) {
case M_PROPERTY_PRINT:
if (!arg)
return M_PROPERTY_ERROR;
else {
int h, m, s = var;
h = s / 3600;
s -= h * 3600;
m = s / 60;
s -= m * 60;
*(char **) arg = malloc(20);
if (h > 0)
sprintf(*(char **) arg, "%d:%02d:%02d", h, m, s);
else if (m > 0)
sprintf(*(char **) arg, "%d:%02d", m, s);
else
sprintf(*(char **) arg, "%d", s);
return M_PROPERTY_OK;
}
}
return m_property_double_ro(prop,action,arg,var);
}
int m_property_string_ro(const m_option_t* prop,int action,void* arg,char* str) {
switch(action) {
case M_PROPERTY_GET:
if(!arg) return 0;
*(char**)arg = str;
return 1;
case M_PROPERTY_PRINT:
if(!arg) return 0;
*(char**)arg = str ? strdup(str) : NULL;
return 1;
}
return M_PROPERTY_NOT_IMPLEMENTED;
}
int m_property_bitrate(const m_option_t* prop,int action,void* arg,int rate) {
switch(action) {
case M_PROPERTY_PRINT:
if (!arg)
return M_PROPERTY_ERROR;
*(char**)arg = malloc (16);
sprintf(*(char**)arg, "%d kbps", rate*8/1000);
return M_PROPERTY_OK;
}
return m_property_int_ro(prop, action, arg, rate);
}
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