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juce::DirectoryIterator Class Referencefinal

#include <juce_DirectoryIterator.h>

Public Member Functions

 DirectoryIterator (const File &directory, bool isRecursive, const String &wildCard="*", int whatToLookFor=File::findFiles)
 
 ~DirectoryIterator ()
 
bool next ()
 
bool next (bool *isDirectory, bool *isHidden, int64 *fileSize, Time *modTime, Time *creationTime, bool *isReadOnly)
 
const FilegetFile () const
 
float getEstimatedProgress () const
 

Detailed Description

Searches through the files in a directory, returning each file that is found.

A DirectoryIterator will search through a directory and its subdirectories using a wildcard filepattern match.

If you may be scanning a large number of files, it's usually smarter to use this class than File::findChildFiles() because it allows you to stop at any time, rather than having to wait for the entire scan to finish before getting the results.

Please note that the order in which files are returned is completely undefined! They'll arrive in whatever order the underlying OS calls provide them, which will depend on the filesystem and other factors. If you need a sorted list, you'll need to manually sort them using your preferred comparator after collecting the list.

It also provides an estimate of its progress, using a (highly inaccurate!) algorithm.

Definition at line 46 of file juce_DirectoryIterator.h.

Constructor & Destructor Documentation

◆ DirectoryIterator()

juce::DirectoryIterator::DirectoryIterator ( const File directory,
bool  isRecursive,
const String wildCard = "*",
int  whatToLookFor = File::findFiles 
)

Creates a DirectoryIterator for a given directory.

After creating one of these, call its next() method to get the first file - e.g.

DirectoryIterator iter (File ("/animals/mooses"), true, "*.moose");
while (iter.next())
{
File theFileItFound (iter.getFile());
... etc
}
Parameters
directorythe directory to search in
isRecursivewhether all the subdirectories should also be searched
wildCardthe file pattern to match. This may contain multiple patterns separated by a semi-colon or comma, e.g. "*.jpg;*.png"
whatToLookFora value from the File::TypesOfFileToFind enum, specifying whether to look for files, directories, or both.

Definition at line 26 of file juce_DirectoryIterator.cpp.

◆ ~DirectoryIterator()

juce::DirectoryIterator::~DirectoryIterator ( )

Destructor.

Definition at line 40 of file juce_DirectoryIterator.cpp.

Member Function Documentation

◆ getEstimatedProgress()

float juce::DirectoryIterator::getEstimatedProgress ( ) const

Returns a guess of how far through the search the iterator has got.

Returns
a value 0.0 to 1.0 to show the progress, although this won't be very accurate.

Definition at line 148 of file juce_DirectoryIterator.cpp.

◆ getFile()

const File & juce::DirectoryIterator::getFile ( ) const

Returns the file that the iterator is currently pointing at.

The result of this call is only valid after a call to next() has returned true.

Definition at line 137 of file juce_DirectoryIterator.cpp.

◆ next() [1/2]

bool juce::DirectoryIterator::next ( )

Moves the iterator along to the next file.

Returns
true if a file was found (you can then use getFile() to see what it was) - or false if there are no more matching files.

Definition at line 62 of file juce_DirectoryIterator.cpp.

Referenced by next().

◆ next() [2/2]

bool juce::DirectoryIterator::next ( bool isDirectory,
bool isHidden,
int64 *  fileSize,
Time modTime,
Time creationTime,
bool isReadOnly 
)

Moves the iterator along to the next file, and returns various properties of that file.

If you need to find out details about the file, it's more efficient to call this method than to call the normal next() method and then find out the details afterwards.

All the parameters are optional, so pass null pointers for any items that you're not interested in.

Returns
true if a file was found (you can then use getFile() to see what it was) - or false if there are no more matching files. If it returns false, then none of the parameters will be filled-in.

Definition at line 67 of file juce_DirectoryIterator.cpp.


The documentation for this class was generated from the following files: