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