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  * This program is free software; you can redistribute it and/or
  15  * modify it under the terms of the GNU General Public License
  16  * as published by the Free Software Foundation; either version 2
  17  * of the License, or (at your option) any later version.
  18  *
  19  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  20  * KIND, either express or implied.
  21  *
  22  ****************************************************************************/
  23
  24 #include "types.h"
  25 #include "lcd.h"
  26 #include "debug.h"
  27 #define CONFIG_KEYPAD RECORDER_PAD
  28 #include "button.h"
  29
  30 #ifdef SIMULATOR
  31 #include <stdio.h>
  32 #include <unistd.h>
  33 #endif
  34
  35 /* I hacked this function to be placed inside because I figure we will need
  36    something like it eventually.
  37
  38    Args are fairly straight forward.
  39    int xbase: location of "bottom" of battery on screen
  40    int ybase: location of "left" edge of battery on screen
  41    int len: how long is the battery to be (in pixels)
  42    int wid: how tall is the battery to be (in pixels)
  43    int percent: what percentage of the charge has been used
  44
  45    Note: I am making use of the Logf() function until logging is
  46          straightened out.
  47 */
  48
  49 void draw_battery(int xbase, int ybase, int len, int wid, int percent)
  50 {
  51     float capacity = 0;
  52     int bar_xoffset = 2;
  53     int bar_yoffset = 2;
  54     int bar_len = 0;
  55     int bar_wid = wid - (bar_xoffset*2);
  56     int i = 0;
  57
  58     /* We only worry about length and width because if you place
  59        the battery off the screen, its your own damn fault. We log
  60        and then just draw an empty battery */
  61     if((percent > 100) || (percent < 0) || (len < 0) || (wid < 0)) {
  62 /*       debug("Error: Battery data invalid");  */
  63         percent = 0;
  64     }
  65
  66     /* top batt. edge */
  67     lcd_hline(xbase, xbase+len-2, ybase);
  68
  69     /* bot batt. edge */
  70     lcd_hine(xbase, xbase+len-2, ybase+wid);
  71
  72     /* left batt. edge */
  73     lcd_vline(xbase, ybase, ybase+wid);
  74
  75     /* right batt. edge */
  76     lcd_vline(xbase+len, ybase+1, 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_hline(xbase+bar_xoffset,
  89                       xbase+bar_xoffset+bar_len, ybase+bar_yoffset+i);
  90         }
  91     }
  92         lcd_update();
  93 }
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