apps/logfdisp.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2005 Daniel Stenberg
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21 #include "config.h"
  22
  23 #ifdef ROCKBOX_HAS_LOGF
  24 #include <file.h>
  25 #include <sprintf.h>
  26 #include <timefuncs.h>
  27 #include <string.h>
  28 #include <kernel.h>
  29 #include <action.h>
  30
  31 #include <lcd.h>
  32 #include "menu.h"
  33 #include "logf.h"
  34 #include "settings.h"
  35 #include "logfdisp.h"
  36
  37 #ifdef HAVE_LCD_BITMAP
  38 bool logfdisplay(void)
  39
  40 {
  41     int w, h;
  42     int lines;
  43     int columns;
  44     int i;
  45
  46     bool lcd = false; /* fixed atm */
  47     int index;
  48
  49     lcd_getstringsize("A", &w, &h);
  50     lines = (lcd?
  51 #ifdef HAVE_REMOTE_LCD
  52              LCD_REMOTE_HEIGHT
  53 #else
  54              0
  55 #endif
  56              :LCD_HEIGHT)/h;
  57     columns = (lcd?
  58 #ifdef HAVE_REMOTE_LCD
  59              LCD_REMOTE_WIDTH
  60 #else
  61              0
  62 #endif
  63              :LCD_WIDTH)/w;
  64
  65     if (columns > MAX_LOGF_ENTRY)
  66         columns = MAX_LOGF_ENTRY;
  67
  68     if(!lines)
  69         return false;
  70
  71     lcd_clear_display();
  72
  73     do {
  74         index = logfindex;
  75         for(i = lines-1; i>=0; i--) {
  76             unsigned char buffer[columns + 1];
  77
  78             if(--index < 0) {
  79                 if(logfwrap)
  80                     index = MAX_LOGF_LINES-1;
  81                 else
  82                     break; /* done */
  83             }
  84
  85             memcpy(buffer, logfbuffer[index], columns);
  86             buffer[columns]=0;
  87             lcd_puts(0, i, buffer);
  88         }
  89         lcd_update();
  90     } while(!action_userabort(HZ));
  91
  92     return false;
  93 }
  94 #else /* HAVE_LCD_BITMAP */
  95 bool logfdisplay(void)
  96
  97 {
  98     /* TODO: implement a browser for charcell bitmaps */
  99     return false;
 100 }
 101 #endif /* HAVE_LCD_BITMAP */
 102
 103 /* Store the logf log to logf.txt in the .rockbox directory. The order of the
 104  * entries will be "reversed" so that the most recently logged entry is on the
 105  * top of the file */
 106 bool logfdump(void)
 107 {
 108     int fd;
 109
 110     if(!logfindex && !logfwrap)
 111         /* nothing is logged just yet */
 112         return false;
 113
 114     fd = open(ROCKBOX_DIR "/logf.txt", O_CREAT|O_WRONLY|O_TRUNC);
 115     if(-1 != fd) {
 116         unsigned char buffer[MAX_LOGF_ENTRY +1];
 117         int index = logfindex-1;
 118         int stop = logfindex;
 119
 120
 121         while(index != stop) {
 122             if(index < 0) {
 123                 if(logfwrap)
 124                     index = MAX_LOGF_LINES-1;
 125                 else
 126                     break; /* done */
 127             }
 128
 129             memcpy(buffer, logfbuffer[index], MAX_LOGF_ENTRY);
 130             buffer[MAX_LOGF_ENTRY]=0;
 131             fdprintf(fd, "%s\n", buffer);
 132             index--;
 133         }
 134         close(fd);
 135     }
 136     return false;
 137 }
 138
 139 #endif /* ROCKBOX_HAS_LOGF */