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#include "config.h"
#include "mp_msg.h"
#include "help_mp.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "libmpcodecs/img_format.h"
#include "libmpcodecs/mp_image.h"
#include "m_struct.h"
#include "m_option.h"
#include "menu.h"
#include "libvo/font_load.h"
#include "osdep/keycodes.h"
struct menu_priv_s {
char** lines;
int num_lines;
int cur_line;
int disp_lines;
int minb;
int hspace;
char* file;
};
static struct menu_priv_s cfg_dflt = {
NULL,
0,
0,
0,
0,
3,
NULL
};
#define ST_OFF(m) M_ST_OFF(struct menu_priv_s,m)
static m_option_t cfg_fields[] = {
{ "minbor", ST_OFF(minb), CONF_TYPE_INT, M_OPT_MIN, 0, 0, NULL },
{ "hspace", ST_OFF(hspace), CONF_TYPE_INT, M_OPT_MIN, 0, 0, NULL },
{ "file", ST_OFF(file), CONF_TYPE_STRING, 0, 0, 0, NULL },
{ NULL, NULL, NULL, 0,0,0,NULL }
};
#define mpriv (menu->priv)
static void read_cmd(menu_t* menu,int cmd) {
switch(cmd) {
case MENU_CMD_UP:
mpriv->cur_line -= mpriv->disp_lines / 2;
if(mpriv->cur_line < 0)
mpriv->cur_line = 0;
break;
case MENU_CMD_DOWN:
case MENU_CMD_OK:
mpriv->cur_line += mpriv->disp_lines / 2;
if(mpriv->cur_line >= mpriv->num_lines)
mpriv->cur_line = mpriv->num_lines - 1;
break;
case MENU_CMD_CANCEL:
menu->show = 0;
menu->cl = 1;
break;
}
}
static void read_key(menu_t* menu,int c) {
switch (c) {
case KEY_HOME:
mpriv->cur_line = 0;
break;
case KEY_END:
mpriv->cur_line = mpriv->num_lines - 1;
break;
case KEY_PAGE_UP:
mpriv->cur_line = mpriv->cur_line > mpriv->disp_lines ?
mpriv->cur_line - mpriv->disp_lines : 0;
break;
case KEY_PAGE_DOWN:
mpriv->cur_line = mpriv->cur_line + mpriv->disp_lines > mpriv->num_lines - 1 ? mpriv->num_lines - 1 : mpriv->cur_line + mpriv->disp_lines;
break;
default:
menu_dflt_read_key(menu,c);
}
}
static void draw(menu_t* menu,mp_image_t* mpi) {
int x = mpriv->minb;
int y = mpriv->minb;
//int th = 2*mpriv->hspace + vo_font->height;
int i,end;
if(x < 0) x = 8;
if(y < 0) y = 8;
mpriv->disp_lines = (mpi->h + mpriv->hspace - 2*mpriv->minb) / ( vo_font->height + mpriv->hspace);
if(mpriv->num_lines - mpriv->cur_line < mpriv->disp_lines) {
i = mpriv->num_lines - 1 - mpriv->disp_lines;
if(i < 0) i = 0;
end = mpriv->num_lines - 1;
} else {
i = mpriv->cur_line;
end = i + mpriv->disp_lines;
if(end >= mpriv->num_lines) end = mpriv->num_lines - 1;
}
for( ; i < end ; i++) {
menu_draw_text(mpi,mpriv->lines[i],x,y);
y += vo_font->height + mpriv->hspace;
}
}
#define BUF_SIZE 1024
static int open(menu_t* menu, char* args) {
FILE* fd;
char buf[BUF_SIZE];
char *l;
int s;
int pos = 0, r = 0;
args = NULL; // Warning kill
menu->draw = draw;
menu->read_cmd = read_cmd;
menu->read_key = read_key;
if(!mpriv->file) {
mp_msg(MSGT_GLOBAL,MSGL_WARN,MSGTR_LIBMENU_MenuTxtNeedATxtFileName);
return 0;
}
fd = fopen(mpriv->file,"r");
if(!fd) {
mp_msg(MSGT_GLOBAL,MSGL_WARN,MSGTR_LIBMENU_MenuTxtCantOpen,mpriv->file);
return 0;
}
while(1) {
r = fread(buf+pos,1,BUF_SIZE-pos-1,fd);
if(r <= 0) {
if(pos > 0) {
mpriv->lines = realloc(mpriv->lines,(mpriv->num_lines + 1)*sizeof(char*));
mpriv->lines[mpriv->num_lines] = strdup(buf);
mpriv->num_lines++;
}
fclose(fd);
break;
}
pos += r;
buf[pos] = '\0';
while((l = strchr(buf,'\n')) != NULL) {
s = l-buf;
mpriv->lines = realloc(mpriv->lines,(mpriv->num_lines + 1)*sizeof(char*));
mpriv->lines[mpriv->num_lines] = malloc(s+1);
memcpy(mpriv->lines[mpriv->num_lines],buf,s);
mpriv->lines[mpriv->num_lines][s] = '\0';
pos -= s + 1;
if(pos > 0)
memmove(buf,l+1,pos);
buf[pos] = '\0';
mpriv->num_lines++;
}
if(pos >= BUF_SIZE-1) {
mp_msg(MSGT_GLOBAL,MSGL_WARN,MSGTR_LIBMENU_WarningTooLongLineSplitting);
mpriv->lines = realloc(mpriv->lines,(mpriv->num_lines + 1)*sizeof(char*));
mpriv->lines[mpriv->num_lines] = strdup(buf);
mpriv->num_lines++;
pos = 0;
}
}
mp_msg(MSGT_GLOBAL,MSGL_INFO,MSGTR_LIBMENU_ParsedLines,mpriv->num_lines);
return 1;
}
const menu_info_t menu_info_txt = {
"Text file viewer",
"txt",
"Albeu",
"",
{
"txt_cfg",
sizeof(struct menu_priv_s),
&cfg_dflt,
cfg_fields
},
open,
};
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