1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
/***************************************************************************
copyright : (C) 2003-2006 by Robby Stephenson
email : robby@periapsis.org
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of version 2 of the GNU General Public License as *
* published by the Free Software Foundation; *
* *
***************************************************************************/
#ifndef FILEHANDLER_H
#define FILEHANDLER_H
#include <tqstring.h>
#include <tqcstring.h> // needed for TQByteArray
#include <tqptrlist.h>
class KURL;
class KSaveFile;
class KFileItem;
namespace KIO {
class Job;
}
class TQDomDocument;
class TQIODevice;
namespace Tellico {
class ImageFactory;
namespace Data {
class Image;
}
/**
* The FileHandler class contains some utility functions for reading files.
*
* @author Robby Stephenson
*/
class FileHandler {
friend class ImageFactory;
public:
/**
* An internal class to handle KIO stuff. Exposed so a FileRef pointer
* can be returned from FileHandler.
*/
class FileRef {
public:
bool open(bool quiet=false);
TQIODevice* file() const { return m_device; }
const TQString& fileName() const { return m_filename; }
bool isValid() const { return m_isValid; }
~FileRef();
private:
friend class FileHandler;
FileRef(const KURL& url, bool quiet=false, bool allowCompressed=false);
TQIODevice* m_device;
TQString m_filename;
bool m_isValid;
};
friend class FileRef;
/**
* Creates a FileRef for a given url. It's not meant to be used by methods in the class,
* Rather by a class wanting direct access to a file. The caller takes ownership of the pointer.
*
* @param url The url
* @param quiet Whether error messages should be shown
* @return The fileref
*/
static FileRef* fileRef(const KURL& url, bool quiet=false);
/**
* Read contents of a file into a string.
*
* @param url The URL of the file
* @param quiet whether the importer should report errors or not
* @param useUTF8 Whether the file should be read as UTF8 or use user locale
* @param allowCompressed Whether to check if the file is compressed or not
* @return A string containing the contents of a file
*/
static TQString readTextFile(const KURL& url, bool quiet=false, bool useUTF8=false, bool allowCompressed=false);
/**
* Read contents of an XML file into a TQDomDocument.
*
* @param url The URL of the file
* @param processNamespace Whether to process the namespace of the XML file
* @param quiet Whether error messages should be shown
* @return A TQDomDocument containing the contents of a file
*/
static TQDomDocument readXMLFile(const KURL& url, bool processNamespace, bool quiet=false);
/**
* Read contents of a data file into a TQByteArray.
*
* @param url The URL of the file
* @param quiet Whether error messages should be shown
* @return A TQByteArray of the file's contents
*/
static TQByteArray readDataFile(const KURL& url, bool quiet=false);
/**
* Writes the contents of a string to a url. If the file already exists, a "~" is appended
* and the existing file is moved. If the file is remote, a temporary file is written and
* then uploaded.
*
* @param url The url
* @param text The text
* @param encodeUTF8 Whether to use UTF-8 encoding, or Locale
* @param force Whether to force the write
* @return A boolean indicating success
*/
static bool writeTextURL(const KURL& url, const TQString& text, bool encodeUTF8, bool force=false, bool quiet=false);
/**
* Writes data to a url. If the file already exists, a "~" is appended
* and the existing file is moved. If the file is remote, a temporary file is written and
* then uploaded.
*
* @param url The url
* @param data The data
* @param force Whether to force the write
* @return A boolean indicating success
*/
static bool writeDataURL(const KURL& url, const TQByteArray& data, bool force=false, bool quiet=false);
/**
* Checks to see if a URL exists already, and if so, queries the user.
*
* @param url The target URL
* @return True if it is ok to continue, false otherwise.
*/
static bool queryExists(const KURL& url);
static void clean();
private:
class ItemDeleter;
friend class ItemDeleter;
static TQPtrList<ItemDeleter> s_deleterList;
/**
* Read contents of a file into an image. It's private since everything should use the
* ImageFactory methods.
*
* @param url The URL of the file
* @param quiet If errors should be quiet
* @return The image
*/
static Data::Image* readImageFile(const KURL& url, bool quiet=false);
static Data::Image* readImageFile(const KURL& url, bool quiet, const KURL& referrer);
/**
* Writes the contents of a string to a file.
*
* @param file The file object
* @param text The string
* @param encodeUTF8 Whether to use UTF-8 encoding, or Locale
* @return A boolean indicating success
*/
static bool writeTextFile(KSaveFile& file, const TQString& text, bool encodeUTF8);
/**
* Writes data to a file.
*
* @param file The file object
* @param data The data
* @return A boolean indicating success
*/
static bool writeDataFile(KSaveFile& file, const TQByteArray& data);
};
} // end namespace
#endif
|
