KFileDialog Class Reference

from PyKDE4.kio import *

Inherits: KDialog → QDialog → QWidget → QObject
Subclasses: KEncodingFileDialog

Detailed Description

Provides a user (and developer) friendly way to select files and directories.

The widget can be used as a drop in replacement for the QFileDialog widget, but has greater functionality and a nicer GUI.

You will usually want to use one of the static methods getOpenFileName(), getSaveFileName(), getOpenUrl() or for multiple files getOpenFileNames() or getOpenUrls().

The dialog has been designed to allow applications to customize it by subclassing. It uses geometry management to ensure that subclasses can easily add children that will be incorporated into the layout.

"KDE File Dialog"

A file selection dialog.

Author:: Richard J. Moore <rich@kde.org>, Carsten Pfeiffer <pfeiffer@kde.org>

Enumerations
OperationMode	{ Other, Opening, Saving }
Signals
	fileHighlighted (QString a0)
	fileSelected (QString a0)
	filterChanged (QString filter)
	selectionChanged ()
Methods
	__init__ (self, KUrl startDir, QString filter, QWidget parent, QWidget widget=0)
	__init__ (self, KFileDialog a0)
	accept (self)
KActionCollection	actionCollection (self)
KUrl	baseUrl (self)
KPushButton	cancelButton (self)
	clearFilter (self)
QString	currentFilter (self)
KMimeType.Ptr	currentFilterMimeType (self)
QString	currentMimeFilter (self)
	fileHighlighted (self, QString a0)
	fileSelected (self, QString a0)
KAbstractFileWidget	fileWidget (self)
	filterChanged (self, QString filter)
KFileFilterCombo	filterWidget (self)
	hideEvent (self, QHideEvent event)
bool	keepsLocation (self)
	keyPressEvent (self, QKeyEvent e)
KUrlComboBox	locationEdit (self)
KFile.Modes	mode (self)
KPushButton	okButton (self)
KFileDialog.OperationMode	operationMode (self)
QString	selectedFile (self)
QStringList	selectedFiles (self)
KUrl	selectedUrl (self)
KUrl.List	selectedUrls (self)
	selectionChanged (self)
	setFilter (self, QString filter)
	setKeepLocation (self, bool keep)
	setLocationLabel (self, QString text)
	setMimeFilter (self, QStringList types, QString defaultType=QString())
	setMode (self, KFile.Modes m)
	setOperationMode (self, KFileDialog.OperationMode a0)
	setPreviewWidget (self, KPreviewWidgetBase w)
	setSelection (self, QString name)
	setUrl (self, KUrl url, bool clearforward=1)
QSize	sizeHint (self)
	slotCancel (self)
	slotOk (self)
KToolBar	toolBar (self)
Static Methods
QString	getExistingDirectory (KUrl startDir=KUrl(), QWidget parent=0, QString caption=QString())
KUrl	getExistingDirectoryUrl (KUrl startDir=KUrl(), QWidget parent=0, QString caption=QString())
KUrl	getImageOpenUrl (KUrl startDir=KUrl(), QWidget parent=0, QString caption=QString())
QString	getOpenFileName (KUrl startDir=KUrl(), QString filter=QString(), QWidget parent=0, QString caption=QString())
QString	getOpenFileNameWId (KUrl startDir, QString filter, WId parent_id, QString caption)
QStringList	getOpenFileNames (KUrl startDir=KUrl(), QString filter=QString(), QWidget parent=0, QString caption=QString())
KUrl	getOpenUrl (KUrl startDir=KUrl(), QString filter=QString(), QWidget parent=0, QString caption=QString())
KUrl.List	getOpenUrls (KUrl startDir=KUrl(), QString filter=QString(), QWidget parent=0, QString caption=QString())
QString	getSaveFileName (KUrl startDir=KUrl(), QString filter=QString(), QWidget parent=0, QString caption=QString())
QString	getSaveFileNameWId (KUrl startDir, QString filter, WId parent_id, QString caption)
KUrl	getSaveUrl (KUrl startDir=KUrl(), QString filter=QString(), QWidget parent=0, QString caption=QString())
KUrl	getStartUrl (KUrl startDir, QString recentDirClass)
	setStartDir (KUrl directory)

Method Documentation

__init__	(	self,
		KUrl	startDir,
		QString	filter,
		QWidget	parent,
		QWidget	widget=0
	)

Constructs a file dialog.

Parameters:

startDir

This can either be

The URL of the directory to start in.

A KUrl() to start in the current working

directory, or the last directory where a file has been selected.

An URL starting with 'kfiledialog:<keyword>' to start in the

directory last used by a filedialog in the same application that specified the same keyword.

An URL starting with 'kfiledialog:<keyword>?global' to start

in the directory last used by a filedialog in any application that specified the same keyword.

Parameters:

	filter	A shell glob or a mime-type-filter that specifies which files to display. See setFilter() and setMimeFilter() for details on how to use this argument.
	parent	The parent widget of this dialog
	widget	A widget, or a widget of widgets, for displaying custom data in the dialog. This can be used, for example, to display a check box with the caption "Open as read-only". When creating this widget, you don't need to specify a parent, since the widget's parent will be set automatically by KFileDialog.

__init__	(	self,
		KFileDialog	a0
	)

accept ( self )

KActionCollection actionCollection ( self )

Returns:: a pointer to the action collection, holding all the used KActions.

KUrl baseUrl ( self )

Returns:: the currently shown directory.

KPushButton cancelButton ( self )

Returns:: a pointer to the Cancel-Button in the filedialog. You may use it e.g. to set a custom text to it.

clearFilter ( self )

Clears any mime- or namefilter. Does not reload the directory.

QString currentFilter ( self )

Returns the current filter as entered by the user or one of the predefined set via setFilter().

See also:: setFilter()

See also:: filterChanged()

KMimeType.Ptr currentFilterMimeType ( self )

Returns the mimetype for the desired output format.

This is only valid if setMimeFilter() has been called previously.

See also:: setFilterMimeType()

QString currentMimeFilter ( self )

The mimetype for the desired output format.

This is only valid if setMimeFilter() has been called previously.

See also:: setMimeFilter()

fileHighlighted	(	self,
		QString	a0
	)

Emitted when the user highlights a file.

Signal syntax:: QObject.connect(source, SIGNAL("fileHighlighted(const QString&)"), target_slot)

fileSelected	(	self,
		QString	a0
	)

Emitted when the user selects a file. It is only emitted in single- selection mode. The best way to get notified about selected file(s) is to connect to the okClicked() signal inherited from KDialog and call selectedFile(), selectedFiles(), selectedUrl() or selectedUrls().

Signal syntax:: QObject.connect(source, SIGNAL("fileSelected(const QString&)"), target_slot)

KAbstractFileWidget fileWidget ( self )

Returns the KFileWidget that implements most of this file dialog. If you link to libkfile you can cast this to a KFileWidget*.

filterChanged	(	self,
		QString	filter
	)

Emitted when the filter changed, i.e. the user entered an own filter or chose one of the predefined set via setFilter().

Parameters:

filter

contains the new filter (only the extension part, not the explanation), i.e. "*.cpp" or "*.cpp *.cc".

See also:: setFilter()

See also:: currentFilter()

Signal syntax:: QObject.connect(source, SIGNAL("filterChanged(const QString&)"), target_slot)

KFileFilterCombo filterWidget ( self )

Returns:: the combobox that contains the filters You need to link to libkfile to use this widget.

QString getExistingDirectory	(	KUrl	startDir=KUrl(),
		QWidget	parent=0,
		QString	caption=QString()
	)

Creates a modal directory-selection dialog and returns the selected directory (local only) or an empty string if none was chosen.

Parameters:

startDir

This can either be

The URL of the directory to start in.

A KUrl() to start in the current working

directory, or the last directory where a file has been selected.

An URL starting with 'kfiledialog:<keyword>' to start in the

directory last used by a filedialog in the same application that specified the same keyword.

An URL starting with 'kfiledialog:<keyword>?global' to start

in the directory last used by a filedialog in any application that specified the same keyword.

Parameters:

	parent	The widget the dialog will be centered on initially.
	caption	The name of the dialog widget.

Returns:: the path to an existing local directory.

KUrl getExistingDirectoryUrl	(	KUrl	startDir=KUrl(),
		QWidget	parent=0,
		QString	caption=QString()
	)

Creates a modal directory-selection dialog and returns the selected directory or an empty string if none was chosen. This version supports remote urls.

Parameters:

startDir

This can either be

The URL of the directory to start in.

A KUrl() to start in the current working

directory, or the last directory where a file has been selected.

An URL starting with 'kfiledialog:<keyword>' to start in the

directory last used by a filedialog in the same application that specified the same keyword.

An URL starting with 'kfiledialog:<keyword>?global' to start

in the directory last used by a filedialog in any application that specified the same keyword.

Parameters:

	parent	The widget the dialog will be centered on initially.
	caption	The name of the dialog widget.

Returns:: the url to an existing directory (local or remote).

KUrl getImageOpenUrl	(	KUrl	startDir=KUrl(),
		QWidget	parent=0,
		QString	caption=QString()
	)

Creates a modal file dialog with an image previewer and returns the selected url or an empty string if none was chosen.

Parameters:

startDir

This can either be

The URL of the directory to start in.

A KUrl() to start in the current working

directory, or the last directory where a file has been selected.

An URL starting with 'kfiledialog:<keyword>' to start in the

directory last used by a filedialog in the same application that specified the same keyword.

An URL starting with 'kfiledialog:<keyword>?global' to start

in the directory last used by a filedialog in any application that specified the same keyword.

Parameters:

	parent	The widget the dialog will be centered on initially.
	caption	The name of the dialog widget.

QString getOpenFileName	(	KUrl	startDir=KUrl(),
		QString	filter=QString(),
		QWidget	parent=0,
		QString	caption=QString()
	)

Creates a modal file dialog and return the selected filename or an empty string if none was chosen.

Note that with this method the user must select an existing filename.

Parameters:

startDir

This can either be

The URL of the directory to start in.

A KUrl() to start in the current working

directory, or the last directory where a file has been selected.

An URL starting with 'kfiledialog:<keyword>' to start in the

directory last used by a filedialog in the same application that specified the same keyword.

An URL starting with 'kfiledialog:<keyword>?global' to start

in the directory last used by a filedialog in any application that specified the same keyword.

Parameters:

	filter	A shell glob or a mime-type-filter that specifies which files to display. The preferred option is to set a list of mimetype names, see setMimeFilter() for details. Otherwise you can set the text to be displayed for the each glob, and provide multiple globs, see setFilter() for details.
	parent	The widget the dialog will be centered on initially.
	caption	The name of the dialog widget.

QString getOpenFileNameWId	(	KUrl	startDir,
		QString	filter,
		WId	parent_id,
		QString	caption
	)

Use this version only if you have no QWidget available as parent widget. This can be the case if the parent widget is a widget in another process or if the parent widget is a non-Qt widget. For example, in a GTK program.

QStringList getOpenFileNames	(	KUrl	startDir=KUrl(),
		QString	filter=QString(),
		QWidget	parent=0,
		QString	caption=QString()
	)

Creates a modal file dialog and returns the selected filenames or an empty list if none was chosen.

Note that with this method the user must select an existing filename.

Parameters:

startDir

This can either be

The URL of the directory to start in.

A KUrl() to start in the current working

directory, or the last directory where a file has been selected.

An URL starting with 'kfiledialog:<keyword>' to start in the

directory last used by a filedialog in the same application that specified the same keyword.

An URL starting with 'kfiledialog:<keyword>?global' to start

in the directory last used by a filedialog in any application that specified the same keyword.

Parameters:

	filter	A shell glob or a mime-type-filter that specifies which files to display. The preferred option is to set a list of mimetype names, see setMimeFilter() for details. Otherwise you can set the text to be displayed for the each glob, and provide multiple globs, see setFilter() for details.
	parent	The widget the dialog will be centered on initially.
	caption	The name of the dialog widget.

KUrl getOpenUrl	(	KUrl	startDir=KUrl(),
		QString	filter=QString(),
		QWidget	parent=0,
		QString	caption=QString()
	)

Creates a modal file dialog and returns the selected URL or an empty string if none was chosen.

Note that with this method the user must select an existing URL.

Parameters:

startDir

This can either be

The URL of the directory to start in.

A KUrl() to start in the current working

directory, or the last directory where a file has been selected.

An URL starting with 'kfiledialog:<keyword>' to start in the

directory last used by a filedialog in the same application that specified the same keyword.

An URL starting with 'kfiledialog:<keyword>?global' to start

in the directory last used by a filedialog in any application that specified the same keyword.

Parameters:

	filter	A shell glob or a mime-type-filter that specifies which files to display. The preferred option is to set a list of mimetype names, see setMimeFilter() for details. Otherwise you can set the text to be displayed for the each glob, and provide multiple globs, see setFilter() for details.
	parent	The widget the dialog will be centered on initially.
	caption	The name of the dialog widget.

KUrl.List getOpenUrls	(	KUrl	startDir=KUrl(),
		QString	filter=QString(),
		QWidget	parent=0,
		QString	caption=QString()
	)

Creates a modal file dialog and returns the selected URLs or an empty list if none was chosen.

Note that with this method the user must select an existing filename.

Parameters:

startDir

This can either be

The URL of the directory to start in.

A KUrl() to start in the current working

directory, or the last directory where a file has been selected.

An URL starting with 'kfiledialog:<keyword>' to start in the

directory last used by a filedialog in the same application that specified the same keyword.

An URL starting with 'kfiledialog:<keyword>?global' to start

in the directory last used by a filedialog in any application that specified the same keyword.

Parameters:

	filter	A shell glob or a mime-type-filter that specifies which files to display. The preferred option is to set a list of mimetype names, see setMimeFilter() for details. Otherwise you can set the text to be displayed for the each glob, and provide multiple globs, see setFilter() for details.
	parent	The widget the dialog will be centered on initially.
	caption	The name of the dialog widget.

QString getSaveFileName	(	KUrl	startDir=KUrl(),
		QString	filter=QString(),
		QWidget	parent=0,
		QString	caption=QString()
	)

Creates a modal file dialog and returns the selected filename or an empty string if none was chosen.

Note that with this method the user need not select an existing filename.

Parameters:

startDir

This can either be

The URL of the directory to start in.

A KUrl() to start in the current working

directory, or the last directory where a file has been selected.

An URL starting with 'kfiledialog:<keyword>' to start in the

directory last used by a filedialog in the same application that specified the same keyword.

An URL starting with 'kfiledialog:<keyword>?global' to start

in the directory last used by a filedialog in any application that specified the same keyword.

Parameters:

	filter	A shell glob or a mime-type-filter that specifies which files to display. The preferred option is to set a list of mimetype names, see setMimeFilter() for details. Otherwise you can set the text to be displayed for the each glob, and provide multiple globs, see setFilter() for details.
	parent	The widget the dialog will be centered on initially.
	caption	The name of the dialog widget.

QString getSaveFileNameWId	(	KUrl	startDir,
		QString	filter,
		WId	parent_id,
		QString	caption
	)

This function accepts the window id of the parent window, instead of QWidget*. It should be used only when necessary.

KUrl getSaveUrl	(	KUrl	startDir=KUrl(),
		QString	filter=QString(),
		QWidget	parent=0,
		QString	caption=QString()
	)

Creates a modal file dialog and returns the selected filename or an empty string if none was chosen.

Note that with this method the user need not select an existing filename.

Parameters:

startDir

This can either be

The URL of the directory to start in.

A KUrl() to start in the current working

directory, or the last directory where a file has been selected.

An URL starting with 'kfiledialog:<keyword>' to start in the

directory last used by a filedialog in the same application that specified the same keyword.

An URL starting with 'kfiledialog:<keyword>?global' to start

in the directory last used by a filedialog in any application that specified the same keyword.

Parameters:

	filter	A shell glob or a mime-type-filter that specifies which files to display. The preferred option is to set a list of mimetype names, see setMimeFilter() for details. Otherwise you can set the text to be displayed for the each glob, and provide multiple globs, see setFilter() for details.
	parent	The widget the dialog will be centered on initially.
	caption	The name of the dialog widget.

KUrl getStartUrl	(	KUrl	startDir,
		QString	recentDirClass
	)

This method implements the logic to determine the user's default directory to be listed. E.g. the documents directory, home directory or a recently used directory.

Parameters:

	startDir	A url, to be used. May use the 'kfiledialog:keyword' and 'kfiledialog:keyword?global' syntax as documented in the KFileDialog() constructor.
	recentDirClass	If the 'kfiledialog:' syntax is used, recentDirClass will contain the string to be used later for KRecentDir.dir()

Returns:: The URL that should be listed by default (e.g. by KFileDialog or KDirSelectDialog).

hideEvent	(	self,
		QHideEvent	event
	)

Reimplemented for saving the dialog geometry.

bool keepsLocation ( self )

Returns:: whether the contents of the location edit are kept when changing directories.

keyPressEvent	(	self,
		QKeyEvent	e
	)

Reimplemented to animate the cancel button.

KUrlComboBox locationEdit ( self )

Returns:: the combobox used to type the filename or full location of the file. You need to link to libkfile to use this widget.

KFile.Modes mode ( self )

Returns the mode of the filedialog.

See also:: setMode()

KPushButton okButton ( self )

Returns:: a pointer to the OK-Button in the filedialog. You may use it e.g. to set a custom text to it.

KFileDialog.OperationMode operationMode ( self )

Returns:: the current operation mode, Opening, Saving or Other. Default is Other.

See also:: operationMode

See also:: KFileDialog.OperationMode

QString selectedFile ( self )

Returns the full path of the selected file in the local filesystem. (Local files only)

QStringList selectedFiles ( self )

Returns a list of all selected local files.

KUrl selectedUrl ( self )

Returns:: The selected fully qualified filename.

KUrl.List selectedUrls ( self )

Returns:: The list of selected URLs.

selectionChanged ( self )

Emitted when the user hilights one or more files in multiselection mode.

Note: fileHighlighted() or fileSelected() are not emitted in multiselection mode. You may use selectedItems() to ask for the current highlighted items.

See also:: fileSelected

Signal syntax:: QObject.connect(source, SIGNAL("selectionChanged()"), target_slot)

setFilter	(	self,
		QString	filter
	)

Sets the filter to be used to filter.

You can set more filters for the user to select separated by '\\n'. Every filter entry is defined through namefilter|text to display. If no '|' is found in the expression, just the namefilter is shown. Examples:

 kfile->setFilter("*.cpp|C++ Source Files\n*.h|Header files");
 kfile->setFilter("*.cpp");
 kfile->setFilter("*.cpp|Sources (*.cpp)");
 kfile->setFilter("*.cpp|" + i18n("Sources (*.cpp)"));
 kfile->setFilter("*.cpp *.cc *.C|C++ Source Files\n*.h *.H|Header files");

Note: The text to display is not parsed in any way. So, if you want to show the suffix to select by a specific filter, you must repeat it.

If the filter contains an unescaped '/', a mimetype-filter is assumed. If you would like a '/' visible in your filter it can be escaped with a '\'. You can specify multiple mimetypes like this (separated with space):

 kfile->setFilter( "image/png text/html text/plain" );
 kfile->setFilter( "*.cue|CUE\\/BIN Files (*.cue)" );

See also:: filterChanged

See also:: setMimeFilter

setKeepLocation	(	self,
		bool	keep
	)

Sets whether the filename/url should be kept when changing directories. This is for example useful when having a predefined filename where the full path for that file is searched.

This is implicitly set when operationMode() is KFileDialog.Saving

getSaveFileName() and getSaveUrl() set this to true by default, so that you can type in the filename and change the directory without having to type the name again.

setLocationLabel	(	self,
		QString	text
	)

Sets the text to be displayed in front of the selection.

The default is "Location". Most useful if you want to make clear what the location is used for.

setMimeFilter	(	self,
		QStringList	types,
		QString	defaultType=QString()
	)

Sets the filter up to specify the output type.

Parameters:

	types	a list of mimetypes that can be used as output format
	defaultType	the default mimetype to use as output format, if any. If defaultType is set, it will be set as the current item. Otherwise, a first item showing all the mimetypes will be created. Typically, defaultType should be empty for loading and set for saving.

Do not use in conjunction with setFilter()

setMode	(	self,
		KFile.Modes	m
	)

Sets the mode of the dialog.

The mode is defined as (in kfile.h):

    enum Mode {
         File         = 1,
         Directory    = 2,
         Files        = 4,
         ExistingOnly = 8,
         LocalOnly    = 16
    };

You can OR the values, e.g.

 KFile.Modes mode = KFile.Files |
                     KFile.ExistingOnly |
                     KFile.LocalOnly );
 setMode( mode );

setOperationMode	(	self,
		KFileDialog.OperationMode	a0
	)

Sets the operational mode of the filedialog to Saving, Opening or Other. This will set some flags that are specific to loading or saving files. E.g. setKeepLocation() makes mostly sense for a save-as dialog. So setOperationMode( KFileDialog.Saving ); sets setKeepLocation for example.

The mode Saving, together with a default filter set via setMimeFilter() will make the filter combobox read-only.

The default mode is Opening.

Call this method right after instantiating KFileDialog.

See also:: operationMode

See also:: KFileDialog.OperationMode

setPreviewWidget	(	self,
		KPreviewWidgetBase	w
	)

Adds a preview widget and enters the preview mode.

In this mode the dialog is split and the right part contains your preview widget.

Ownership is transferred to KFileDialog. You need to create the preview-widget with "new", i.e. on the heap.

Parameters:

The widget to be used for the preview.

setSelection	(	self,
		QString	name
	)

Sets the file name to preselect to name

This takes absolute URLs and relative file names.

setStartDir	(	KUrl	directory
	)

Internal:: Used by KDirSelectDialog to share the dialog's start directory.

setUrl	(	self,
		KUrl	url,
		bool	clearforward=1
	)

Sets the directory to view.

Parameters:

	url	URL to show.
	clearforward	Indicates whether the forward queue should be cleared.

QSize sizeHint ( self )

See also:: QWidget.sizeHint()

slotCancel ( self )

slotOk ( self )

KToolBar toolBar ( self )

Returns a pointer to the toolbar.

You can use this to insert custom items into it, e.g.:

      yourAction = new KAction( i18n("Your Action"), 0,
                                this, SLOT( yourSlot() ),
                                this, "action name" );
      yourAction->plug( kfileDialog->toolBar() );

Enumeration Documentation

OperationMode

Defines some default behavior of the filedialog. E.g. in mode Opening and Saving, the selected files/urls will be added to the "recent documents" list. The Saving mode also implies setKeepLocation() being set.

Other means that no default actions are performed.

See also:: setOperationMode

See also:: operationMode

Enumerator:

Other = 0
Opening
Saving

KFileDialog Class Reference

Detailed Description

Enumerations

Signals

Methods

Static Methods

Method Documentation

Enumeration Documentation

Modules