The QFileDialog class provides dialogs that allow users to select files or directories.. Más...

#include <qfiledialog.h>

Diagrama de herencias de QFileDialog

Tipos públicos
enum	Mode { AnyFile, ExistingFile, Directory, ExistingFiles, DirectoryOnly, AnyFile, ExistingFile, Directory, ExistingFiles, DirectoryOnly }
enum	ViewMode { Detail, List, Detail, List }
enum	PreviewMode { NoPreview, Contents, Info, NoPreview, Contents, Info }
enum	Mode { AnyFile, ExistingFile, Directory, ExistingFiles, DirectoryOnly, AnyFile, ExistingFile, Directory, ExistingFiles, DirectoryOnly }
enum	ViewMode { Detail, List, Detail, List }
enum	PreviewMode { NoPreview, Contents, Info, NoPreview, Contents, Info }
Slots públicos
void	done (int)
void	setDir (const QString &)
void	setUrl (const QUrlOperator &url)
void	setFilter (const QString &)
void	setFilters (const QString &)
void	setFilters (const char **)
void	setFilters (const QStringList &)
void	done (int)
void	setDir (const QString &)
void	setUrl (const QUrlOperator &url)
void	setFilter (const QString &)
void	setFilters (const QString &)
void	setFilters (const char **)
void	setFilters (const QStringList &)
Señales
void	fileHighlighted (const QString &)
void	fileSelected (const QString &)
void	filesSelected (const QStringList &)
void	dirEntered (const QString &)
void	filterSelected (const QString &)
void	fileHighlighted (const QString &)
void	fileSelected (const QString &)
void	filesSelected (const QStringList &)
void	dirEntered (const QString &)
void	filterSelected (const QString &)
Métodos públicos
	QFileDialog (const QString &dirName, const QString &filter=QString::null, QWidget parent=0, const char name=0, bool modal=FALSE)
	QFileDialog (QWidget parent=0, const char name=0, bool modal=FALSE)
	~QFileDialog ()
QString	selectedFile () const
QString	selectedFilter () const
virtual void	setSelectedFilter (const QString &)
virtual void	setSelectedFilter (int)
void	setSelection (const QString &)
void	selectAll (bool b)
QStringList	selectedFiles () const
QString	dirPath () const
void	setDir (const QDir &)
const QDir *	dir () const
void	setShowHiddenFiles (bool s)
bool	showHiddenFiles () const
void	rereadDir ()
void	resortDir ()
void	setMode (Mode)
Mode	mode () const
void	setViewMode (ViewMode m)
ViewMode	viewMode () const
void	setPreviewMode (PreviewMode m)
PreviewMode	previewMode () const
bool	eventFilter (QObject , QEvent )
bool	isInfoPreviewEnabled () const
bool	isContentsPreviewEnabled () const
void	setInfoPreviewEnabled (bool)
void	setContentsPreviewEnabled (bool)
void	setInfoPreview (QWidget w, QFilePreview preview)
void	setContentsPreview (QWidget w, QFilePreview preview)
QUrl	url () const
void	addFilter (const QString &filter)
	QFileDialog (const QString &dirName, const QString &filter=QString::null, QWidget parent=0, const char name=0, bool modal=FALSE)
	QFileDialog (QWidget parent=0, const char name=0, bool modal=FALSE)
	~QFileDialog ()
QString	selectedFile () const
QString	selectedFilter () const
virtual void	setSelectedFilter (const QString &)
virtual void	setSelectedFilter (int)
void	setSelection (const QString &)
void	selectAll (bool b)
QStringList	selectedFiles () const
QString	dirPath () const
void	setDir (const QDir &)
const QDir *	dir () const
void	setShowHiddenFiles (bool s)
bool	showHiddenFiles () const
void	rereadDir ()
void	resortDir ()
void	setMode (Mode)
Mode	mode () const
void	setViewMode (ViewMode m)
ViewMode	viewMode () const
void	setPreviewMode (PreviewMode m)
PreviewMode	previewMode () const
bool	eventFilter (QObject , QEvent )
bool	isInfoPreviewEnabled () const
bool	isContentsPreviewEnabled () const
void	setInfoPreviewEnabled (bool)
void	setContentsPreviewEnabled (bool)
void	setInfoPreview (QWidget w, QFilePreview preview)
void	setContentsPreview (QWidget w, QFilePreview preview)
QUrl	url () const
void	addFilter (const QString &filter)
Métodos públicos estáticos
static QString	getOpenFileName (const QString &initially=QString::null, const QString &filter=QString::null, QWidget parent=0, const char name=0, const QString &caption=QString::null, QString *selectedFilter=0, bool resolveSymlinks=TRUE)
static QString	getSaveFileName (const QString &initially=QString::null, const QString &filter=QString::null, QWidget parent=0, const char name=0, const QString &caption=QString::null, QString *selectedFilter=0, bool resolveSymlinks=TRUE)
static QString	getExistingDirectory (const QString &dir=QString::null, QWidget parent=0, const char name=0, const QString &caption=QString::null, bool dirOnly=TRUE, bool resolveSymlinks=TRUE)
static QStringList	getOpenFileNames (const QString &filter=QString::null, const QString &dir=QString::null, QWidget parent=0, const char name=0, const QString &caption=QString::null, QString *selectedFilter=0, bool resolveSymlinks=TRUE)
static void	setIconProvider (QFileIconProvider *)
static QFileIconProvider *	iconProvider ()
static QString	getOpenFileName (const QString &initially=QString::null, const QString &filter=QString::null, QWidget parent=0, const char name=0, const QString &caption=QString::null, QString *selectedFilter=0, bool resolveSymlinks=TRUE)
static QString	getSaveFileName (const QString &initially=QString::null, const QString &filter=QString::null, QWidget parent=0, const char name=0, const QString &caption=QString::null, QString *selectedFilter=0, bool resolveSymlinks=TRUE)
static QString	getExistingDirectory (const QString &dir=QString::null, QWidget parent=0, const char name=0, const QString &caption=QString::null, bool dirOnly=TRUE, bool resolveSymlinks=TRUE)
static QStringList	getOpenFileNames (const QString &filter=QString::null, const QString &dir=QString::null, QWidget parent=0, const char name=0, const QString &caption=QString::null, QString *selectedFilter=0, bool resolveSymlinks=TRUE)
static void	setIconProvider (QFileIconProvider *)
static QFileIconProvider *	iconProvider ()
Métodos protegidos
void	resizeEvent (QResizeEvent *)
void	keyPressEvent (QKeyEvent *)
void	addWidgets (QLabel , QWidget , QPushButton *)
void	addToolButton (QButton *b, bool separator=FALSE)
void	addLeftWidget (QWidget *w)
void	addRightWidget (QWidget *w)
void	resizeEvent (QResizeEvent *)
void	keyPressEvent (QKeyEvent *)
void	addWidgets (QLabel , QWidget , QPushButton *)
void	addToolButton (QButton *b, bool separator=FALSE)
void	addLeftWidget (QWidget *w)
void	addRightWidget (QWidget *w)
Propiedades
QString	selectedFile
	the name of the selected file
QString	selectedFilter
	the filter which the user has selected in the file dialog
QStringList	selectedFiles
	the list of selected files
QString	dirPath
	the file dialog's working directory
bool	showHiddenFiles
	whether hidden files are shown in the file dialog
Mode	mode
	the file dialog's mode
ViewMode	viewMode
	the file dialog's view mode
PreviewMode	previewMode
	the preview mode for the file dialog
bool	infoPreview
	whether the file dialog can provide preview information about the currently selected file
bool	contentsPreview
	whether the file dialog can provide a contents preview of the currently selected file
Amigas
class	QFileDialogQFileListView
class	QFileListBox

Descripción detallada

The QFileDialog class provides dialogs that allow users to select files or directories.

.

The QFileDialog class enables a user to traverse their file system in order to select one or many files or a directory.

The easiest way to create a QFileDialog is to use the static functions. On Windows, these static functions will call the native Windows file dialog and on Mac OS X, these static function will call the native Mac OS X file dialog.

    QString s = QFileDialog::getOpenFileName(
                    "/home",
                    "Images (*.png *.xpm *.jpg)",
                    this,
                    "open file dialog",
                    "Choose a file" );

In the above example, a modal QFileDialog is created using a static function. The startup directory is set to "/home". The file filter is set to "Images (*.png *.xpm *.jpg)". The parent of the file dialog is set to this and it is given the identification name - "open file dialog". The caption at the top of file dialog is set to "Choose a file". If you want to use multiple filters, separate each one with two semi-colons, e.g.

  "Images (*.png *.xpm *.jpg);;Text files (*.txt);;XML files (*.xml)"

You can create your own QFileDialog without using the static functions. By calling setMode(), you can set what can be returned by the QFileDialog.

    QFileDialog* fd = new QFileDialog( this, "file dialog", TRUE );
    fd->setMode( QFileDialog::AnyFile );

In the above example, the mode of the file dialog is set to AnyFile, meaning that the user can select any file, or even specify a file that doesn't exist. This mode is useful for creating a "File Save As" file dialog. Use ExistingFile if the user must select an existing file or Directory if only a directory may be selected. (See the QFileDialog::Mode enum for the complete list of modes.)

You can retrieve the dialog's mode with mode(). Use setFilter() to set the dialog's file filter, e.g.

    fd->setFilter( "Images (*.png *.xpm *.jpg)" );

In the above example, the filter is set to "Images (*.png *.xpm .jpg)", this means that only files with the extension png, xpm or jpg will be shown in the QFileDialog. You can apply several filters by using setFilters() and add additional filters with addFilter(). Use setSelectedFilter() to select one of the filters you've given as the file dialog's default filter. Whenever the user changes the filter the filterSelected() signal is emitted.

The file dialog has two view modes, QFileDialog::List which simply lists file and directory names and QFileDialog::Detail which displays additional information alongside each name, e.g. file size, modification date, etc. Set the mode with setViewMode().

    fd->setViewMode( QFileDialog::Detail );

The last important function you will need to use when creating your own file dialog is selectedFile().

    QString fileName;
    if ( fd->exec() == QDialog::Accepted )
        fileName = fd->selectedFile();

In the above example, a modal file dialog is created and shown. If the user clicked OK, then the file they selected is put in fileName.

If you are using the ExistingFiles mode then you will need to use selectedFiles() which will return the selected files in a QStringList.

The dialog's working directory can be set with setDir(). The display of hidden files is controlled with setShowHiddenFiles(). The dialog can be forced to re-read the directory with rereadDir() and re-sort the directory with resortDir(). All the files in the current directory can be selected with selectAll().

Documentación de las enumeraciones miembro de la clase

enum QFileDialog::Mode

This enum is used to indicate what the user may select in the file dialog, i.e. what the dialog will return if the user clicks OK.

AnyFile The name of a file, whether it exists or not. ExistingFile The name of a single existing file. Directory The name of a directory. Both files and directories are displayed. DirectoryOnly The name of a directory. The file dialog will only display directories. ExistingFiles The names of zero or more existing files.

See setMode().

Valores de enumeraciones:

AnyFile
ExistingFile
Directory
ExistingFiles
DirectoryOnly
AnyFile
ExistingFile
Directory
ExistingFiles
DirectoryOnly

enum QFileDialog::Mode

Valores de enumeraciones:

AnyFile
ExistingFile
Directory
ExistingFiles
DirectoryOnly
AnyFile
ExistingFile
Directory
ExistingFiles
DirectoryOnly

enum QFileDialog::PreviewMode

Valores de enumeraciones:

NoPreview
Contents
Info
NoPreview
Contents
Info

enum QFileDialog::PreviewMode

This enum describes the preview mode of the file dialog.

NoPreview No preview is shown at all. Contents Show a preview of the contents of the current file using the contents preview widget. Info Show information about the current file using the info preview widget.

See setPreviewMode(), setContentsPreview() and setInfoPreview().

Valores de enumeraciones:

NoPreview
Contents
Info
NoPreview
Contents
Info

enum QFileDialog::ViewMode

This enum describes the view mode of the file dialog, i.e. what information about each file will be displayed.

List Display file and directory names with icons. Detail Display file and directory names with icons plus additional information, such as file size and modification date.

See setViewMode().

Valores de enumeraciones:

Detail
List
Detail
List

enum QFileDialog::ViewMode

Valores de enumeraciones:

Detail
List
Detail
List

Documentación del constructor y destructor

QFileDialog::QFileDialog	(	const QString &	dirName,
		const QString &	filter = `QString::null`,
		QWidget *	parent = `0`,
		const char *	name = `0`,
		bool	modal = `FALSE`
	)

Constructs a file dialog called name with the parent, parent. If modal is TRUE then the file dialog is modal; otherwise it is modeless.

If dirName is specified then it will be used as the dialog's working directory, i.e. it will be the directory that is shown when the dialog appears. If filter is specified it will be used as the dialog's file filter.

QFileDialog::QFileDialog	(	QWidget *	parent = `0`,
		const char *	name = `0`,
		bool	modal = `FALSE`
	)

Constructs a file dialog called name, with the parent, parent. If modal is TRUE then the file dialog is modal; otherwise it is modeless.

QFileDialog::~QFileDialog ( )

Destroys the file dialog.

QFileDialog::QFileDialog	(	const QString &	dirName,
		const QString &	filter = `QString::null`,
		QWidget *	parent = `0`,
		const char *	name = `0`,
		bool	modal = `FALSE`
	)

QFileDialog::QFileDialog	(	QWidget *	parent = `0`,
		const char *	name = `0`,
		bool	modal = `FALSE`
	)

QFileDialog::~QFileDialog ( )

Documentación de las funciones miembro

void QFileDialog::addFilter ( const QString & filter )

Adds the filter filter to the list of filters and makes it the current filter.

    QFileDialog* fd = new QFileDialog( this );
    fd->addFilter( "Images (*.png *.jpg *.xpm)" );
    fd->show();

In the above example, a file dialog is created, and the file filter "Images (*.png *.jpg *.xpm)" is added and is set as the current filter. The original filter, "All Files (*)", is still available.

Ver también:: setFilter(), setFilters()

void QFileDialog::addFilter ( const QString & filter )

void QFileDialog::addLeftWidget ( QWidget * w ) [protected]

Adds the widget w to the left-hand side of the file dialog.

Ver también:: addRightWidget(), addWidgets(), addToolButton()

void QFileDialog::addLeftWidget ( QWidget * w ) [protected]

void QFileDialog::addRightWidget ( QWidget * w ) [protected]

Adds the widget w to the right-hand side of the file dialog.

Ver también:: addLeftWidget(), addWidgets(), addToolButton()

void QFileDialog::addRightWidget ( QWidget * w ) [protected]

void QFileDialog::addToolButton	(	QButton *	b,
		bool	separator = `FALSE`
	)		`[protected]`

Adds the tool button b to the row of tool buttons at the top of the file dialog. The button is appended to the right of this row. If separator is TRUE, a small space is inserted between the last button of the row and the new button b.

Ver también:: addWidgets(), addLeftWidget(), addRightWidget()

void QFileDialog::addToolButton	(	QButton *	b,
		bool	separator = `FALSE`
	)		`[protected]`

void QFileDialog::addWidgets	(	QLabel *	l,
		QWidget *	w,
		QPushButton *	b
	)		`[protected]`

Adds the specified widgets to the bottom of the file dialog. The label l is placed underneath the "file name" and the "file types" labels. The widget w is placed underneath the file types combobox. The button b is placed underneath the Cancel pushbutton.

    MyFileDialog::MyFileDialog( QWidget* parent, const char* name ) :
        QFileDialog( parent, name )
    {
        QLabel* label = new QLabel( "Added widgets", this );
        QLineEdit* lineedit = new QLineEdit( this );
        QPushButton* pushbutton = new QPushButton( this );

        addWidgets( label, lineedit, pushbutton );
    }

If you don't want to have one of the widgets added, pass 0 in that widget's position.

Every time you call this function, a new row of widgets will be added to the bottom of the file dialog.

Ver también:: addToolButton(), addLeftWidget(), addRightWidget()

void QFileDialog::addWidgets	(	QLabel *	,
		QWidget *	,
		QPushButton *
	)		`[protected]`

const QDir* QFileDialog::dir ( ) const

const QDir * QFileDialog::dir ( ) const

Returns the current directory shown in the file dialog.

The ownership of the QDir pointer is transferred to the caller, so it must be deleted by the caller when no longer required.

Ver también:: setDir()

void QFileDialog::dirEntered ( const QString & t0 ) [signal]

This signal is emitted when the user enters a directory.

Ver también:: dir()

void QFileDialog::dirEntered ( const QString & ) [signal]

QString QFileDialog::dirPath ( ) const

void QFileDialog::done ( int i ) [virtual, slot]

Reimplementado de QDialog.

void QFileDialog::done ( int r ) [virtual, slot]

Closes the dialog and sets its result code to r. If this dialog is shown with exec(), done() causes the local event loop to finish, and exec() to return r.

As with QWidget::close(), done() deletes the dialog if the WDestructiveClose flag is set. If the dialog is the application's main widget, the application terminates. If the dialog is the last window closed, the QApplication::lastWindowClosed() signal is emitted.

Ver también:: accept(), reject(), QApplication::mainWidget(), QApplication::quit()

Reimplementado de QDialog.

bool QFileDialog::eventFilter	(	QObject *	o,
		QEvent *	e
	)		`[virtual]`

Reimplementado de QDialog.

bool QFileDialog::eventFilter	(	QObject *	o,
		QEvent *	e
	)		`[virtual]`

Reimplementado de QDialog.

void QFileDialog::fileHighlighted ( const QString & t0 ) [signal]

This signal is emitted when the user highlights a file, i.e. makes it the current file.

Ver también:: fileSelected(), filesSelected()

void QFileDialog::fileHighlighted ( const QString & ) [signal]

void QFileDialog::fileSelected ( const QString & t0 ) [signal]

This signal is emitted when the user selects a file.

Ver también:: filesSelected(), fileHighlighted(), selectedFile()

void QFileDialog::fileSelected ( const QString & ) [signal]

void QFileDialog::filesSelected ( const QStringList & t0 ) [signal]

This signal is emitted when the user selects one or more files in ExistingFiles mode.

Ver también:: fileSelected(), fileHighlighted(), selectedFiles()

void QFileDialog::filesSelected ( const QStringList & ) [signal]

void QFileDialog::filterSelected ( const QString & t0 ) [signal]

This signal is emitted when the user selects a filter.

Ver también:: selectedFilter()

void QFileDialog::filterSelected ( const QString & ) [signal]

QString QFileDialog::getExistingDirectory	(	const QString &	dir = `QString::null`,
		QWidget *	parent = `0`,
		const char *	name = `0`,
		const QString &	caption = `QString::null`,
		bool	dirOnly = `TRUE`,
		bool	resolveSymlinks = `TRUE`
	)		`[static]`

This is a convenience static function that will return an existing directory selected by the user.

    QString s = QFileDialog::getExistingDirectory(
                    "/home",
                    this,
                    "get existing directory",
                    "Choose a directory",
                    TRUE );

This function creates a modal file dialog called name, with parent, parent. If parent is not 0, the dialog will be shown centered over the parent.

The dialog's working directory is set to dir, and the caption is set to caption. Either of these may be QString::null in which case the current directory and a default caption will be used respectively.

Note on Windows that if dir is QString::null then the dialog's working directory will be set to the user's My Documents directory.

If dirOnly is TRUE, then only directories will be shown in the file dialog; otherwise both directories and files will be shown.

Under Unix/X11, the normal behavior of the file dialog is to resolve and follow symlinks. For example, if /usr/tmp is a symlink to /var/tmp, the file dialog will change to /var/tmp after entering /usr/tmp. If resolveSymlinks is FALSE, the file dialog will treat symlinks as regular directories.

Under Windows and Mac OS X, this static function will use the native file dialog and not a QFileDialog, unless the style of the application is set to something other than the native style. (Note that on Windows the dialog will spin a blocking modal event loop that will not dispatch any QTimers and if parent is not 0 then it will position the dialog just under the parent's titlebar).

Ver también:: getOpenFileName(), getOpenFileNames(), getSaveFileName()

static QString QFileDialog::getExistingDirectory	(	const QString &	dir = `QString::null`,
		QWidget *	parent = `0`,
		const char *	name = `0`,
		const QString &	caption = `QString::null`,
		bool	dirOnly = `TRUE`,
		bool	resolveSymlinks = `TRUE`
	)		`[static]`

static QString QFileDialog::getOpenFileName	(	const QString &	initially = `QString::null`,
		const QString &	filter = `QString::null`,
		QWidget *	parent = `0`,
		const char *	name = `0`,
		const QString &	caption = `QString::null`,
		QString *	selectedFilter = `0`,
		bool	resolveSymlinks = `TRUE`
	)		`[static]`

QString QFileDialog::getOpenFileName	(	const QString &	startWith = `QString::null`,
		const QString &	filter = `QString::null`,
		QWidget *	parent = `0`,
		const char *	name = `0`,
		const QString &	caption = `QString::null`,
		QString *	selectedFilter = `0`,
		bool	resolveSymlinks = `TRUE`
	)		`[static]`

This is a convenience static function that returns an existing file selected by the user. If the user pressed Cancel, it returns a null string.

    QString s = QFileDialog::getOpenFileName(
                    "/home",
                    "Images (*.png *.xpm *.jpg)",
                    this,
                    "open file dialog",
                    "Choose a file to open" );

The function creates a modal file dialog called name, with parent, parent. If a parent is not 0, the dialog will be shown centered over the parent.

The file dialog's working directory will be set to startWith. If startWith includes a file name, the file will be selected. The filter is set to filter so that only those files which match the filter are shown. The filter selected is set to selectedFilter. The parameters startWith, selectedFilter and filter may be QString::null.

The dialog's caption is set to caption. If caption is not specified then a default caption will be used.

Under Windows and Mac OS X, this static function will use the native file dialog and not a QFileDialog, unless the style of the application is set to something other than the native style (Note that on Windows the dialog will spin a blocking modal event loop that will not dispatch any QTimers and if parent is not 0 then it will position the dialog just under the parent's titlebar).

Under Unix/X11, the normal behavior of the file dialog is to resolve and follow symlinks. For example, if /usr/tmp is a symlink to /var/tmp, the file dialog will change to /var/tmp after entering /usr/tmp. If resolveSymlinks is FALSE, the file dialog will treat symlinks as regular directories.

Ver también:: getOpenFileNames(), getSaveFileName(), getExistingDirectory()

QStringList QFileDialog::getOpenFileNames	(	const QString &	filter = `QString::null`,
		const QString &	dir = `QString::null`,
		QWidget *	parent = `0`,
		const char *	name = `0`,
		const QString &	caption = `QString::null`,
		QString *	selectedFilter = `0`,
		bool	resolveSymlinks = `TRUE`
	)		`[static]`

This is a convenience static function that will return one or more existing files selected by the user.

    QStringList files = QFileDialog::getOpenFileNames(
                            "Images (*.png *.xpm *.jpg)",
                            "/home",
                            this,
                            "open files dialog",
                            "Select one or more files to open" );

This function creates a modal file dialog called name, with parent parent. If parent is not 0, the dialog will be shown centered over the parent.

The file dialog's working directory will be set to dir. If dir includes a file name, the file will be selected. The filter is set to filter so that only those files which match the filter are shown. The filter selected is set to selectedFilter. The parameters dir, selectedFilter and filter may be QString::null.

The dialog's caption is set to caption. If caption is not specified then a default caption will be used.

Under Windows and Mac OS X, this static function will use the native file dialog and not a QFileDialog, unless the style of the application is set to something other than the native style. (Note that on Windows the dialog will spin a blocking modal event loop that will not dispatch any QTimers and if parent is not 0 then it will position the dialog just under the parent's titlebar).

Under Unix/X11, the normal behavior of the file dialog is to resolve and follow symlinks. For example, if /usr/tmp is a symlink to /var/tmp, the file dialog will change to /var/tmp after entering /usr/tmp. If resolveSymlinks is FALSE, the file dialog will treat symlinks as regular directories.

Note that if you want to iterate over the list of files, you should iterate over a copy, e.g.

    QStringList list = files;
    QStringList::Iterator it = list.begin();
    while( it != list.end() ) {
        myProcessing( *it );
        ++it;
    }

Ver también:: getOpenFileName(), getSaveFileName(), getExistingDirectory()

static QStringList QFileDialog::getOpenFileNames	(	const QString &	filter = `QString::null`,
		const QString &	dir = `QString::null`,
		QWidget *	parent = `0`,
		const char *	name = `0`,
		const QString &	caption = `QString::null`,
		QString *	selectedFilter = `0`,
		bool	resolveSymlinks = `TRUE`
	)		`[static]`

QString QFileDialog::getSaveFileName	(	const QString &	startWith = `QString::null`,
		const QString &	filter = `QString::null`,
		QWidget *	parent = `0`,
		const char *	name = `0`,
		const QString &	caption = `QString::null`,
		QString *	selectedFilter = `0`,
		bool	resolveSymlinks = `TRUE`
	)		`[static]`

This is a convenience static function that will return a file name selected by the user. The file does not have to exist.

It creates a modal file dialog called name, with parent, parent. If a parent is not 0, the dialog will be shown centered over the parent.

    QString s = QFileDialog::getSaveFileName(
                    "/home",
                    "Images (*.png *.xpm *.jpg)",
                    this,
                    "save file dialog",
                    "Choose a filename to save under" );

The file dialog's working directory will be set to startWith. If startWith includes a file name, the file will be selected. The filter is set to filter so that only those files which match the filter are shown. The filter selected is set to selectedFilter. The parameters startWith, selectedFilter and filter may be QString::null.

The dialog's caption is set to caption. If caption is not specified then a default caption will be used.

Under Windows and Mac OS X, this static function will use the native file dialog and not a QFileDialog, unless the style of the application is set to something other than the native style. (Note that on Windows the dialog will spin a blocking modal event loop that will not dispatch any QTimers and if parent is not 0 then it will position the dialog just under the parent's titlebar.

Under Unix/X11, the normal behavior of the file dialog is to resolve and follow symlinks. For example, if /usr/tmp is a symlink to /var/tmp, the file dialog will change to /var/tmp after entering /usr/tmp. If resolveSymlinks is FALSE, the file dialog will treat symlinks as regular directories.

Ver también:: getOpenFileName(), getOpenFileNames(), getExistingDirectory()

static QString QFileDialog::getSaveFileName	(	const QString &	initially = `QString::null`,
		const QString &	filter = `QString::null`,
		QWidget *	parent = `0`,
		const char *	name = `0`,
		const QString &	caption = `QString::null`,
		QString *	selectedFilter = `0`,
		bool	resolveSymlinks = `TRUE`
	)		`[static]`

QFileIconProvider * QFileDialog::iconProvider ( ) [static]

Returns a pointer to the icon provider currently set on the file dialog. By default there is no icon provider, and this function returns 0.

Ver también:: setIconProvider(), QFileIconProvider

static QFileIconProvider* QFileDialog::iconProvider ( ) [static]

bool QFileDialog::isContentsPreviewEnabled ( ) const

bool QFileDialog::isInfoPreviewEnabled ( ) const

void QFileDialog::keyPressEvent ( QKeyEvent * ke ) [protected, virtual]

Reimplementado de QDialog.

void QFileDialog::keyPressEvent ( QKeyEvent * e ) [protected, virtual]

Reimplementado de QDialog.

Mode QFileDialog::mode ( ) const

PreviewMode QFileDialog::previewMode ( ) const

void QFileDialog::rereadDir ( )

Rereads the current directory shown in the file dialog.

The only time you will need to call this function is if the contents of the directory change and you wish to refresh the file dialog to reflect the change.

Ver también:: resortDir()

void QFileDialog::resizeEvent ( QResizeEvent * e ) [protected, virtual]

Reimplementado de QDialog.

void QFileDialog::resizeEvent ( QResizeEvent * ) [protected, virtual]

Reimplementado de QDialog.

void QFileDialog::resortDir ( )

Re-sorts the displayed directory.

Ver también:: rereadDir()

void QFileDialog::selectAll ( bool b )

If b is TRUE then all the files in the current directory are selected; otherwise, they are deselected.

QString QFileDialog::selectedFile ( ) const

QStringList QFileDialog::selectedFiles ( ) const

QString QFileDialog::selectedFilter ( ) const

void QFileDialog::setContentsPreview	(	QWidget *	w,
		QFilePreview *	preview
	)

Sets the widget to be used for displaying the contents of the file to the widget w and a preview of those contents to the QFilePreview preview.

Normally you would create a preview widget that derives from both QWidget and QFilePreview, so you should pass the same widget twice. If you don't, you must remember to delete the preview object in order to avoid memory leaks.

    class Preview : public QLabel, public QFilePreview
    {
    public:
        Preview( QWidget *parent=0 ) : QLabel( parent ) {}

        void previewUrl( const QUrl &u )
        {
            QString path = u.path();
            QPixmap pix( path );
            if ( pix.isNull() )
                setText( "This is not a pixmap" );
            else
                setPixmap( pix );
        }
    };

  //...

  int main( int argc, char** argv )
  {
    Preview* p = new Preview;

    QFileDialog* fd = new QFileDialog( this );
    fd->setContentsPreviewEnabled( TRUE );
    fd->setContentsPreview( p, p );
    fd->setPreviewMode( QFileDialog::Contents );
    fd->show();
  }

Ver también:: setContentsPreviewEnabled(), setInfoPreview(), setPreviewMode()

void QFileDialog::setContentsPreview	(	QWidget *	w,
		QFilePreview *	preview
	)

void QFileDialog::setContentsPreviewEnabled ( bool contents )

void QFileDialog::setContentsPreviewEnabled ( bool )

void QFileDialog::setDir ( const QDir & )

void QFileDialog::setDir ( const QString & pathstr ) [slot]

Esta es una función miembro sobrecargada que se suministra por conveniencia. Difiere de la anterior función solamente en los argumentos que acepta. Sets the file dialog's working directory to pathstr.

Ver también:: dir()

void QFileDialog::setDir ( const QString & ) [slot]

void QFileDialog::setDir ( const QDir & dir )

Sets the file dialog's working directory to dir.

Ver también:: dir()

void QFileDialog::setFilter ( const QString & newFilter ) [slot]

Sets the filter used in the file dialog to newFilter.

If newFilter contains a pair of parentheses containing one or more of anything*something separated by spaces or by semi-colons then only the text contained in the parentheses is used as the filter. This means that these calls are all equivalent:

     fd->setFilter( "All C++ files (*.cpp *.cc *.C *.cxx *.c++)" );
     fd->setFilter( "*.cpp *.cc *.C *.cxx *.c++" );
     fd->setFilter( "All C++ files (*.cpp;*.cc;*.C;*.cxx;*.c++)" );
     fd->setFilter( "*.cpp;*.cc;*.C;*.cxx;*.c++" );

Ver también:: setFilters()

void QFileDialog::setFilter ( const QString & ) [slot]

void QFileDialog::setFilters ( const QString & ) [slot]

void QFileDialog::setFilters ( const QString & filters ) [slot]

Sets the filters used in the file dialog to filters. Each group of filters must be separated by {;;} (two semi-colons).

    QString types("Image files (*.png *.xpm *.jpg);;"
                  "Text files (*.txt);;"
                  "Any files (*)");
    QFileDialog fd = new QFileDialog( this );
    fd->setFilters( types );
    fd->show();

void QFileDialog::setFilters ( const QStringList & types ) [slot]

Esta es una función miembro sobrecargada que se suministra por conveniencia. Difiere de la anterior función solamente en los argumentos que acepta.

void QFileDialog::setFilters ( const char ** ) [slot]

void QFileDialog::setFilters ( const char ** types ) [slot]

Esta es una función miembro sobrecargada que se suministra por conveniencia. Difiere de la anterior función solamente en los argumentos que acepta. types must be a null-terminated list of strings.

void QFileDialog::setFilters ( const QStringList & ) [slot]

void QFileDialog::setIconProvider ( QFileIconProvider * provider ) [static]

Sets the QFileIconProvider used by the file dialog to provider.

The default is that there is no QFileIconProvider and QFileDialog just draws a folder icon next to each directory and nothing next to files.

Ver también:: QFileIconProvider, iconProvider()

static void QFileDialog::setIconProvider ( QFileIconProvider * ) [static]

void QFileDialog::setInfoPreview	(	QWidget *	w,
		QFilePreview *	preview
	)

Sets the widget to be used for displaying information about the file to the widget w and a preview of that information to the QFilePreview preview.

Normally you would create a preview widget that derives from both QWidget and QFilePreview, so you should pass the same widget twice. If you don't, you must remember to delete the preview object in order to avoid memory leaks.

    class Preview : public QLabel, public QFilePreview
    {
    public:
        Preview( QWidget *parent=0 ) : QLabel( parent ) {}

        void previewUrl( const QUrl &u )
        {
            QString path = u.path();
            QPixmap pix( path );
            if ( pix.isNull() )
                setText( "This is not a pixmap" );
            else
                setText( "This is a pixmap" );
        }
    };

  //...

  int main( int argc, char** argv )
  {
    Preview* p = new Preview;

    QFileDialog* fd = new QFileDialog( this );
    fd->setInfoPreviewEnabled( TRUE );
    fd->setInfoPreview( p, p );
    fd->setPreviewMode( QFileDialog::Info );
    fd->show();
  }

Ver también:: setContentsPreview(), setInfoPreviewEnabled(), setPreviewMode()

void QFileDialog::setInfoPreview	(	QWidget *	w,
		QFilePreview *	preview
	)

void QFileDialog::setInfoPreviewEnabled ( bool info )

void QFileDialog::setInfoPreviewEnabled ( bool )

void QFileDialog::setMode ( Mode )

void QFileDialog::setMode ( Mode newMode )

void QFileDialog::setPreviewMode ( PreviewMode m )

void QFileDialog::setSelectedFilter ( int n ) [virtual]

Esta es una función miembro sobrecargada que se suministra por conveniencia. Difiere de la anterior función solamente en los argumentos que acepta. Sets the current filter selected in the file dialog to the {n}-th filter in the filter list.

Ver también:: filterSelected(), selectedFilter(), selectedFiles(), selectedFile()

virtual void QFileDialog::setSelectedFilter ( const QString & ) [virtual]

virtual void QFileDialog::setSelectedFilter ( int ) [virtual]

void QFileDialog::setSelectedFilter ( const QString & mask ) [virtual]

Sets the current filter selected in the file dialog to the first one that contains the text mask.

void QFileDialog::setSelection ( const QString & filename )

Sets the default selection to filename. If filename is absolute, setDir() is also called to set the file dialog's working directory to the filename's directory.

Only for external use. Not useful inside QFileDialog.

void QFileDialog::setSelection ( const QString & )

void QFileDialog::setShowHiddenFiles ( bool s )

void QFileDialog::setUrl ( const QUrlOperator & url ) [slot]

Sets the file dialog's working directory to the directory specified at url.

Ver también:: url()

void QFileDialog::setViewMode ( ViewMode m )

bool QFileDialog::showHiddenFiles ( ) const

QUrl QFileDialog::url ( ) const

Returns the URL of the current working directory in the file dialog.

Ver también:: setUrl()

QUrl QFileDialog::url ( ) const

ViewMode QFileDialog::viewMode ( ) const

Documentación de las funciones relacionadas y clases amigas

QFileDialogQFileListView [friend]

QFileListBox [friend]

Documentación de propiedades

bool QFileDialog::contentsPreview [read, write]

whether the file dialog can provide a contents preview of the currently selected file

The default is FALSE.

Ver también:: setContentsPreview() setInfoPreviewEnabled()

QString QFileDialog::dirPath [read]

the file dialog's working directory

Ver también:: dir(), setDir()

bool QFileDialog::infoPreview [read, write]

whether the file dialog can provide preview information about the currently selected file

The default is FALSE.

Mode QFileDialog::mode [read, write]

the file dialog's mode

The default mode is ExistingFile.

PreviewMode QFileDialog::previewMode [read, write]

the preview mode for the file dialog

If you set the mode to be a mode other than NoPreview, you must use setInfoPreview() or setContentsPreview() to set the dialog's preview widget to your preview widget and enable the preview widget(s) with setInfoPreviewEnabled() or setContentsPreviewEnabled().

Ver también:: infoPreview, contentsPreview, viewMode

QString QFileDialog::selectedFile [read]

the name of the selected file

If a file was selected selectedFile contains the file's name including its absolute path; otherwise selectedFile is empty.

Ver también:: QString::isEmpty(), selectedFiles, selectedFilter

QStringList QFileDialog::selectedFiles [read]

the list of selected files

If one or more files are selected, selectedFiles contains their names including their absolute paths. If no files are selected or the mode isn't ExistingFiles selectedFiles is an empty list.

It is more convenient to use selectedFile() if the mode is ExistingFile, Directory or DirectoryOnly.

Note that if you want to iterate over the list, you should iterate over a copy, e.g.

    QStringList list = myFileDialog.selectedFiles();
    QStringList::Iterator it = list.begin();
    while( it != list.end() ) {
        myProcessing( *it );
        ++it;
    }

Ver también:: selectedFile, selectedFilter, QValueList::empty()

QString QFileDialog::selectedFilter [read]

the filter which the user has selected in the file dialog

Ver también:: filterSelected(), selectedFiles, selectedFile

bool QFileDialog::showHiddenFiles [read, write]

whether hidden files are shown in the file dialog

The default is FALSE, i.e. don't show hidden files.

ViewMode QFileDialog::viewMode [read, write]

the file dialog's view mode

If you set the view mode to be Detail (the default), then you will see the file's details, such as the size of the file and the date the file was last modified in addition to the file's name.

If you set the view mode to be List, then you will just see a list of the files and folders.

See QFileDialog::ViewMode

La documentación para esta clase fue generada a partir de los siguientes ficheros:

src/qt/include/qfiledialog.h
src/qt/src/dialogs/qfiledialog.h
src/qt/src/.moc/release-shared-mt/moc_qfiledialog.cpp
src/qt/src/dialogs/qfiledialog.cpp

Tipos públicos

Slots públicos

Señales

Métodos públicos

Métodos públicos estáticos

Métodos protegidos

Propiedades

Amigas

Descripción detallada

Documentación de las enumeraciones miembro de la clase

Documentación del constructor y destructor

Documentación de las funciones miembro

Documentación de las funciones relacionadas y clases amigas

Documentación de propiedades