PySide.QtGui.QDirModel class provides a data model for the local filesystem.
The usage of PySide.QtGui.QDirModel is not recommended anymore. The PySide.QtGui.QFileSystemModel class is a more performant alternative.
This class provides access to the local filesystem, providing functions for renaming and removing files and directories, and for creating new directories. In the simplest case, it can be used with a suitable display widget as part of a browser or filer.
PySide.QtGui.QDirModel keeps a cache with file information. The cache needs to be updated with PySide.QtGui.QDirModel.refresh() .
PySide.QtGui.QDirModel can be accessed using the standard interface provided by PySide.QtCore.QAbstractItemModel , but it also provides some convenience functions that are specific to a directory model. The PySide.QtGui.QDirModel.fileInfo() and PySide.QtGui.QDirModel.isDir() functions provide information about the underlying files and directories related to items in the model.
Directories can be created and removed using PySide.QtGui.QDirModel.mkdir() , PySide.QtGui.QDirModel.rmdir() , and the model will be automatically updated to take the changes into account.
注意
PySide.QtGui.QDirModel requires an instance of a GUI application.
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Constructs a directory model with the given parent .
| 常量 | 描述 |
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| QDirModel.FileIconRole | |
| QDirModel.FilePathRole | |
| QDirModel.FileNameRole |
| 参数： | index – PySide.QtCore.QModelIndex |
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| 返回类型： | PySide.QtGui.QIcon |
Returns the icons for the item stored in the model under the given index .
| 参数： | index – PySide.QtCore.QModelIndex |
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| 返回类型： | PySide.QtCore.QFileInfo |
Returns the file information for the specified model index .
注意
If the model index represents a symbolic link in the underlying filing system, the file information returned will contain information about the symbolic link itself, regardless of whether PySide.QtGui.QDirModel.resolveSymlinks() is enabled or not.
另请参阅
QFileInfo.symLinkTarget()
| 参数： | index – PySide.QtCore.QModelIndex |
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| 返回类型： | unicode |
Returns the name of the item stored in the model under the index 给定。
| 参数： | index – PySide.QtCore.QModelIndex |
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| 返回类型： | unicode |
Returns the path of the item stored in the model under the index 给定。
| 返回类型： | PySide.QtCore.QDir.Filters |
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Returns the filter specification for the directory model.
另请参阅
PySide.QtGui.QDirModel.setFilter() QDir.Filters
| 返回类型： | PySide.QtGui.QFileIconProvider |
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Returns the file icon provider for this directory model.
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这是重载函数。
Returns the model item index for the given path .
| 参数： | index – PySide.QtCore.QModelIndex |
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| 返回类型： | PySide.QtCore.bool |
Returns true if the model item index represents a directory; otherwise returns false.
| 返回类型： | PySide.QtCore.bool |
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This property holds Whether the directory model allows writing to the file system.
If this property is set to false, the directory model will allow renaming, copying and deleting of files and directories.
This property is true by default
| 返回类型： | PySide.QtCore.bool |
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This property holds Whether the directory model optimizes the hasChildren function to only check if the item is a directory..
If this property is set to false, the directory model will make sure that a directory actually containes any files before reporting that it has children. Otherwise the directory model will report that an item has children if the item is a directory.
This property is false by default
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Create a directory with the name 在 parent model item.
| 返回类型： | 字符串列表 |
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Returns a list of filters applied to the names in the model.
| 参数： | parent – PySide.QtCore.QModelIndex |
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PySide.QtGui.QDirModel caches file information. This function updates the cache. The parent parameter is the directory from which the model is updated; the default value will update the model from root directory of the file system (the entire model).
| 参数： | index – PySide.QtCore.QModelIndex |
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| 返回类型： | PySide.QtCore.bool |
Removes the model item index from the directory model and deletes the corresponding file from the file system , returning true if successful. If the item cannot be removed, false is returned.
警告
This function deletes files from the file system; it does not move them to a location where they can be recovered.
| 返回类型： | PySide.QtCore.bool |
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This property holds Whether the directory model should resolve symbolic links.
This is only relevant on operating systems that support symbolic links.
| 参数： | index – PySide.QtCore.QModelIndex |
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| 返回类型： | PySide.QtCore.bool |
Removes the directory corresponding to the model item index in the directory model and deletes the corresponding directory from the file system , returning true if successful. If the directory cannot be removed, false is returned.
警告
This function deletes directories from the file system; it does not move them to a location where they can be recovered.
| 参数： | filters – PySide.QtCore.QDir.Filters |
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| 参数： | provider – PySide.QtGui.QFileIconProvider |
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设置 provider of file icons for the directory model.
| 参数： | enable – PySide.QtCore.bool |
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This property holds Whether the directory model optimizes the hasChildren function to only check if the item is a directory..
If this property is set to false, the directory model will make sure that a directory actually containes any files before reporting that it has children. Otherwise the directory model will report that an item has children if the item is a directory.
This property is false by default
| 参数： | filters – list of strings |
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Sets the name filters for the directory model.
| 参数： | enable – PySide.QtCore.bool |
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This property holds Whether the directory model allows writing to the file system.
If this property is set to false, the directory model will allow renaming, copying and deleting of files and directories.
This property is true by default
| 参数： | enable – PySide.QtCore.bool |
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This property holds Whether the directory model should resolve symbolic links.
This is only relevant on operating systems that support symbolic links.
| 参数： | sort – PySide.QtCore.QDir.SortFlags |
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| 返回类型： | PySide.QtCore.QDir.SortFlags |
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Returns the sorting method used for the directory model.
另请参阅
PySide.QtGui.QDirModel.setSorting() QDir.SortFlags
