id3lib  3.8.3
field_integer.cpp
Go to the documentation of this file.
1 // $Id: field_integer.cpp,v 1.21 2002/07/02 22:12:13 t1mpy Exp $
2 
3 // id3lib: a C++ library for creating and manipulating id3v1/v2 tags
4 // Copyright 1999, 2000 Scott Thomas Haug
5 
6 // This library is free software; you can redistribute it and/or modify it
7 // under the terms of the GNU Library General Public License as published by
8 // the Free Software Foundation; either version 2 of the License, or (at your
9 // option) any later version.
10 //
11 // This library is distributed in the hope that it will be useful, but WITHOUT
12 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
14 // License for more details.
15 //
16 // You should have received a copy of the GNU Library General Public License
17 // along with this library; if not, write to the Free Software Foundation,
18 // Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 
20 // The id3lib authors encourage improvements and optimisations to be sent to
21 // the id3lib coordinator. Please see the README file for details on where to
22 // send such submissions. See the AUTHORS file for a list of people who have
23 // contributed to id3lib. See the ChangeLog file for a list of changes to
24 // id3lib. These files are distributed with id3lib at
25 // http://download.sourceforge.net/id3lib/
26 
27 #include "field_impl.h"
28 #include "id3/utils.h" // has <config.h> "id3/id3lib_streams.h" "id3/globals.h" "id3/id3lib_strings.h"
29 #include "io_helpers.h"
30 
31 using namespace dami;
32 
47 void ID3_FieldImpl::Set(uint32 val)
48 {
49  this->SetInteger(val);
50 }
51 
52 void ID3_FieldImpl::SetInteger(uint32 val)
53 {
54  if (this->GetType() == ID3FTY_INTEGER)
55  {
56  this->Clear();
57 
58  _integer = val;
59  _changed = true;
60  }
61 }
62 
72 uint32 ID3_FieldImpl::Get() const
73 {
74  return this->GetInteger();
75 }
76 
78 {
79  uint32 val = 0;
80  if (this->GetType() == ID3FTY_INTEGER)
81  {
82  val = _integer;
83  }
84  return val;
85 }
86 
88 {
89  ID3D_NOTICE( "ID3_FieldImpl::ParseInteger(): beg = " << reader.getBeg() );
90  ID3D_NOTICE( "ID3_FieldImpl::ParseInteger(): cur = " << reader.getCur() );
91  ID3D_NOTICE( "ID3_FieldImpl::ParseInteger(): end = " << reader.getEnd() );
92  bool success = false;
93  if (!reader.atEnd())
94  {
95  this->Clear();
96  size_t fixed = this->Size();
97  size_t nBytes = (fixed > 0) ? fixed : sizeof(uint32);
98  this->Set(io::readBENumber(reader, nBytes));
99  _changed = false;
100  success = true;
101  }
102  return success;
103 }
104 
106 {
107  io::writeBENumber(writer, _integer, this->Size());
108 }
109 
bool ParseInteger(ID3_Reader &)
void RenderInteger(ID3_Writer &) const
uint32 GetInteger() const
void SetInteger(uint32)
void Set(uint32)
Sets the value of the field to the specified integer.
uint32 Get() const
Returns the value of the integer field.
virtual pos_type getCur()=0
Return the current position in the reader.
virtual bool atEnd()
Definition: reader.h:125
virtual pos_type getEnd()
Return the ending position in the reader.
Definition: reader.h:51
virtual pos_type getBeg()
Return the beginning position in the reader.
Definition: reader.h:48
@ ID3FTY_INTEGER
Definition: globals.h:354
Definition: tag_impl.h:42