ppdc/ppdc-array.cxx

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