Qt 4.8
qresource_iterator.cpp
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41 
42 #include "qresource.h"
43 #include "qresource_iterator_p.h"
44 
45 #include <QtCore/qvariant.h>
46 
48 
50  const QStringList &filterNames)
51  : QAbstractFileEngineIterator(filters, filterNames), index(-1)
52 {
53 }
54 
56 {
57 }
58 
60 {
61  if (!hasNext())
62  return QString();
63  ++index;
64  return currentFilePath();
65 }
66 
68 {
69  if (index == -1) {
70  // Lazy initialization of the iterator
71  QResource resource(path());
72  if (!resource.isValid())
73  return false;
74 
75  // Initialize and move to the next entry.
76  entries = resource.children();
77  index = 0;
78  }
79 
80  return index < entries.size();
81 }
82 
84 {
85  if (index <= 0 || index > entries.size())
86  return QString();
87  return entries.at(index - 1);
88 }
89 
QString path() const
Returns the path for this iterator.
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
QString next()
This pure virtual function advances the iterator to the next directory entry, and returns the file pa...
The QString class provides a Unicode character string.
Definition: qstring.h:83
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
bool isValid() const
Returns true if the resource really exists in the resource hierarchy, false otherwise.
Definition: qresource.cpp:470
The QResource class provides an interface for reading directly from resources.
Definition: qresource.h:58
const T & at(int i) const
Returns the item at index position i in the list.
Definition: qlist.h:468
The QStringList class provides a list of strings.
Definition: qstringlist.h:66
QResourceFileEngineIterator(QDir::Filters filters, const QStringList &filterNames)
static const char *const filters[3]
int size() const
Returns the number of items in the list.
Definition: qlist.h:137
The QAbstractFileEngineIterator class provides an iterator interface for custom file engines...
QString currentFileName() const
This pure virtual function returns the name of the current directory entry, excluding the path...
quint16 index
QString currentFilePath() const
Returns the path to the current directory entry.
QStringList children() const
Returns a list of all resources in this directory, if the resource represents a file the list will be...
Definition: qresource.cpp:554
bool hasNext() const
This pure virtual function returns true if there is at least one more entry in the current directory ...