ppdc/ppdc-array.cxx

   1 //
   2 // "$Id$"
   3 //
   4 // Array class for the CUPS PPD Compiler.
   5 //
   6 // Copyright 2007-2014 by Apple Inc.
   7 // Copyright 2002-2005 by Easy Software Products.
   8 //
   9 // These coded instructions, statements, and computer programs are the
  10 // property of Apple Inc. and are protected by Federal copyright
  11 // law.  Distribution and use rights are outlined in the file "LICENSE.txt"
  12 // which should have been included with this file.  If this file is
  13 // file is missing or damaged, see the license at "http://www.cups.org/".
  14 //
  15
  16 //
  17 // Include necessary headers...
  18 //
  19
  20 #include "ppdc-private.h"
  21
  22
  23 //
  24 // 'ppdcArray::ppdcArray()' - Create a new array.
  25 //
  26
  27 ppdcArray::ppdcArray(ppdcArray *a)
  28   : ppdcShared()
  29 {
  30   PPDC_NEW;
  31
  32   if (a)
  33   {
  34     count = a->count;
  35     alloc = count;
  36
  37     if (count)
  38     {
  39       // Make a copy of the array...
  40       data = new ppdcShared *[count];
  41
  42       memcpy(data, a->data, (size_t)count * sizeof(ppdcShared *));
  43
  44       for (int i = 0; i < count; i ++)
  45         data[i]->retain();
  46     }
  47     else
  48       data = 0;
  49   }
  50   else
  51   {
  52     count = 0;
  53     alloc = 0;
  54     data  = 0;
  55   }
  56
  57   current = 0;
  58 }
  59
  60
  61 //
  62 // 'ppdcArray::~ppdcArray()' - Destroy an array.
  63 //
  64
  65 ppdcArray::~ppdcArray()
  66 {
  67   PPDC_DELETE;
  68
  69   for (int i = 0; i < count; i ++)
  70     data[i]->release();
  71
  72   if (alloc)
  73     delete[] data;
  74 }
  75
  76
  77 //
  78 // 'ppdcArray::add()' - Add an element to an array.
  79 //
  80
  81 void
  82 ppdcArray::add(ppdcShared *d)
  83 {
  84   ppdcShared    **temp;
  85
  86
  87   if (count >= alloc)
  88   {
  89     alloc += 10;
  90     temp  = new ppdcShared *[alloc];
  91
  92     memcpy(temp, data, (size_t)count * sizeof(ppdcShared *));
  93
  94     delete[] data;
  95     data = temp;
  96   }
  97
  98   data[count++] = d;
  99 }
 100
 101
 102 //
 103 // 'ppdcArray::first()' - Return the first element in the array.
 104 //
 105
 106 ppdcShared *
 107 ppdcArray::first()
 108 {
 109   current = 0;
 110
 111   if (current >= count)
 112     return (0);
 113   else
 114     return (data[current ++]);
 115 }
 116
 117
 118 //
 119 // 'ppdcArray::next()' - Return the next element in the array.
 120 //
 121
 122 ppdcShared *
 123 ppdcArray::next()
 124 {
 125   if (current >= count)
 126     return (0);
 127   else
 128     return (data[current ++]);
 129 }
 130
 131
 132 //
 133 // 'ppdcArray::remove()' - Remove an element from the array.
 134 //
 135
 136 void
 137 ppdcArray::remove(ppdcShared *d)                // I - Data element
 138 {
 139   int   i;                                      // Looping var
 140
 141
 142   for (i = 0; i < count; i ++)
 143     if (d == data[i])
 144       break;
 145
 146   if (i >= count)
 147     return;
 148
 149   count --;
 150   d->release();
 151
 152   if (i < count)
 153     memmove(data + i, data + i + 1, (size_t)(count - i) * sizeof(ppdcShared *));
 154 }
 155
 156
 157 //
 158 // End of "$Id$".
 159 //