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
  34 #ifdef HAVE_LCD_BITMAP
  35 bool logfdisplay(void)
  36
  37 {
  38     int w, h;
  39     int lines;
  40     int columns;
  41     int i;
  42
  43     bool lcd = false; /* fixed atm */
  44     int index;
  45
  46     lcd_getstringsize("A", &w, &h);
  47     lines = (lcd?
  48 #ifdef HAVE_REMOTE_LCD
  49              LCD_REMOTE_HEIGHT
  50 #else
  51              0
  52 #endif
  53              :LCD_HEIGHT)/h;
  54     columns = (lcd?
  55 #ifdef HAVE_REMOTE_LCD
  56              LCD_REMOTE_WIDTH
  57 #else
  58              0
  59 #endif
  60              :LCD_WIDTH)/w;
  61
  62     if (columns > MAX_LOGF_ENTRY)
  63         columns = MAX_LOGF_ENTRY;
  64
  65     if(!lines)
  66         return false;
  67
  68     lcd_setmargins(0, 0);
  69     lcd_clear_display();
  70
  71     do {
  72         index = logfindex;
  73         for(i = lines-1; i>=0; i--) {
  74             unsigned char buffer[columns + 1];
  75
  76             if(--index < 0) {
  77                 if(logfwrap)
  78                     index = MAX_LOGF_LINES-1;
  79                 else
  80                     break; /* done */
  81             }
  82
  83             memcpy(buffer, logfbuffer[index], columns);
  84             buffer[columns]=0;
  85             lcd_puts(0, i, buffer);
  86         }
  87         lcd_update();
  88     } while(!action_userabort(HZ));
  89
  90     return false;
  91 }
  92 #else /* HAVE_LCD_BITMAP */
  93 bool logfdisplay(void)
  94
  95 {
  96     /* TODO: implement a browser for charcell bitmaps */
  97     return false;
  98 }
  99 #endif /* HAVE_LCD_BITMAP */
 100
 101 /* Store the logf log to logf.txt in the .rockbox directory. The order of the
 102  * entries will be "reversed" so that the most recently logged entry is on the
 103  * top of the file */
 104 bool logfdump(void)
 105 {
 106     int fd;
 107
 108     if(!logfindex && !logfwrap)
 109         /* nothing is logged just yet */
 110         return false;
 111
 112     fd = open(ROCKBOX_DIR "/logf.txt", O_CREAT|O_WRONLY|O_TRUNC);
 113     if(-1 != fd) {
 114         unsigned char buffer[MAX_LOGF_ENTRY +1];
 115         int index = logfindex-1;
 116         int stop = logfindex;
 117
 118
 119         while(index != stop) {
 120             if(index < 0) {
 121                 if(logfwrap)
 122                     index = MAX_LOGF_LINES-1;
 123                 else
 124                     break; /* done */
 125             }
 126
 127             memcpy(buffer, logfbuffer[index], MAX_LOGF_ENTRY);
 128             buffer[MAX_LOGF_ENTRY]=0;
 129             fdprintf(fd, "%s\n", buffer);
 130             index--;
 131         }
 132         close(fd);
 133     }
 134     return false;
 135 }
 136
 137 #endif /* ROCKBOX_HAS_LOGF */