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