uisimulator/battery.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 1999 Robert Hak (rhak@ramapo.edu)
  11  *
  12  * Heavily modified for embedded use by Björn Stenberg (bjorn@haxx.se)
  13  *
  14  * All files in this archive are subject to the GNU General Public License.
  15  * See the file COPYING in the source tree root for full license agreement.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21
  22 #include "types.h"
  23 #include "lcd.h"
  24 #include "debug.h"
  25 #define HAVE_RECORDER_KEYPAD
  26 #include "button.h"
  27
  28 #ifdef SIMULATOR
  29 #include <stdio.h>
  30 #include <unistd.h>
  31 #endif
  32
  33 /* I hacked this function to be placed inside because I figure we will need
  34    something like it eventually.
  35
  36    Args are fairly straight forward.
  37    int xbase: location of "bottom" of battery on screen
  38    int ybase: location of "left" edge of battery on screen
  39    int len: how long is the battery to be (in pixels)
  40    int wid: how tall is the battery to be (in pixels)
  41    int percent: what percentage of the charge has been used
  42
  43    Note: I am making use of the Logf() function until logging is
  44          straightened out.
  45 */
  46
  47 void draw_battery(int xbase, int ybase, int len, int wid, int percent)
  48 {
  49     float capacity = 0;
  50     int bar_xoffset = 2;
  51     int bar_yoffset = 2;
  52     int bar_len = 0;
  53     int bar_wid = wid - (bar_xoffset*2);
  54     int i = 0;
  55
  56     /* We only worry about length and width because if you place
  57        the battery off the screen, its your own damn fault. We log
  58        and then just draw an empty battery */
  59     if((percent > 100) || (percent < 0) || (len < 0) || (wid < 0)) {
  60 /*       debug("Error: Battery data invalid");  */
  61         percent = 0;
  62     }
  63
  64     /* top batt. edge */
  65     lcd_drawline(xbase, ybase, xbase+len-2, ybase);
  66
  67     /* bot batt. edge */
  68     lcd_drawline(xbase, ybase+wid,
  69                  xbase+len-2, ybase+wid);
  70
  71     /* left batt. edge */
  72     lcd_drawline(xbase, ybase, xbase, ybase+wid);
  73
  74     /* right batt. edge */
  75     lcd_drawline(xbase+len, ybase+1,
  76                  xbase+len, ybase+wid-1);
  77
  78     /* 2 dots that account for the nub on the right side of the battery */
  79     lcd_drawpixel(xbase+len-1, ybase+1);
  80     lcd_drawpixel(xbase+len-1, ybase+wid-1);
  81
  82     if(percent > 0) {
  83         /* % battery is full, 100% is length-bar_xoffset-1 pixels */
  84         capacity = ((float)percent / 100.0) * (len-(bar_xoffset*2)-1);
  85         bar_len = capacity;
  86
  87         for(i = 0; i < bar_wid+1; i++) {
  88             lcd_drawline(xbase+bar_xoffset, ybase+bar_yoffset+i,
  89                          xbase+bar_xoffset+bar_len, ybase+bar_yoffset+i);
  90         }
  91     }
  92         lcd_update();
  93 }
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