KFileItemDelegate

#include <KFileItemDelegate>

Inheritance diagram for KFileItemDelegate:

[legend]

Public Types
enum	Information { NoInformation , Size , Permissions , OctalPermissions , Owner , OwnerAndGroup , CreationTime , ModificationTime , AccessTime , MimeType , FriendlyMimeType , LinkDest , LocalPathOrUrl , Comment }

typedef QList< Information >	InformationList

Public Types inherited from QAbstractItemDelegate
enum	EndEditHint

Properties
InformationList	information

bool	jobTransfersVisible

QSize	maximumSize

qreal	shadowBlur

QColor	shadowColor

QPointF	shadowOffset

bool	showToolTipWhenElided

Properties inherited from QObject
	objectName

Public Slots
bool	helpEvent (QHelpEvent event, QAbstractItemView view, const QStyleOptionViewItem &option, const QModelIndex &index) override

QRegion	shape (const QStyleOptionViewItem &option, const QModelIndex &index)

Public Member Functions
	KFileItemDelegate (QObject *parent=nullptr)

	~KFileItemDelegate () override

QWidget *	createEditor (QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const override

bool	editorEvent (QEvent event, QAbstractItemModel model, const QStyleOptionViewItem &option, const QModelIndex &index) override

bool	eventFilter (QObject object, QEvent event) override

QRect	iconRect (const QStyleOptionViewItem &option, const QModelIndex &index) const

bool	jobTransfersVisible () const

QSize	maximumSize () const

void	paint (QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const override

void	setEditorData (QWidget *editor, const QModelIndex &index) const override

void	setJobTransfersVisible (bool jobTransfersVisible)

void	setMaximumSize (const QSize &size)

void	setModelData (QWidget editor, QAbstractItemModel model, const QModelIndex &index) const override

void	setShadowBlur (qreal radius)

void	setShadowColor (const QColor &color)

void	setShadowOffset (const QPointF &offset)

void	setShowInformation (const InformationList &list)

void	setShowInformation (Information information)

void	setShowToolTipWhenElided (bool showToolTip)

void	setWrapMode (QTextOption::WrapMode wrapMode)

qreal	shadowBlur () const

QColor	shadowColor () const

QPointF	shadowOffset () const

InformationList	showInformation () const

bool	showToolTipWhenElided () const

QSize	sizeHint (const QStyleOptionViewItem &option, const QModelIndex &index) const override

void	updateEditorGeometry (QWidget *editor, const QStyleOptionViewItem &option, const QModelIndex &index) const override

QTextOption::WrapMode	wrapMode () const

Public Member Functions inherited from QAbstractItemDelegate
	QAbstractItemDelegate (QObject *parent)

void	closeEditor (QWidget *editor, QAbstractItemDelegate::EndEditHint hint)

void	commitData (QWidget *editor)

virtual void	destroyEditor (QWidget *editor, const QModelIndex &index) const const

virtual bool	helpEvent (QHelpEvent event, QAbstractItemView view, const QStyleOptionViewItem &option, const QModelIndex &index)

void	sizeHintChanged (const QModelIndex &index)

Public Member Functions inherited from QObject
	QObject (QObject *parent)

QBindable< QString >	bindableObjectName ()

bool	blockSignals (bool block)

const QObjectList &	children () const const

QMetaObject::Connection	connect (const QObject sender, const char signal, const char *method, Qt::ConnectionType type) const const

void	deleteLater ()

void	destroyed (QObject *obj)

bool	disconnect (const char signal, const QObject receiver, const char *method) const const

bool	disconnect (const QObject receiver, const char method) const const

void	dumpObjectInfo () const const

void	dumpObjectTree () const const

QList< QByteArray >	dynamicPropertyNames () const const

virtual bool	event (QEvent *e)

T	findChild (const QString &name, Qt::FindChildOptions options) const const

QList< T >	findChildren (const QRegularExpression &re, Qt::FindChildOptions options) const const

QList< T >	findChildren (const QString &name, Qt::FindChildOptions options) const const

QList< T >	findChildren (Qt::FindChildOptions options) const const

bool	inherits (const char *className) const const

void	installEventFilter (QObject *filterObj)

bool	isQuickItemType () const const

bool	isWidgetType () const const

bool	isWindowType () const const

void	killTimer (int id)

virtual const QMetaObject *	metaObject () const const

void	moveToThread (QThread *targetThread)

QString	objectName () const const

void	objectNameChanged (const QString &objectName)

QObject *	parent () const const

QVariant	property (const char *name) const const

	Q_CLASSINFO (Name, Value)

	Q_EMIT Q_EMIT

	Q_ENUM (...)

	Q_ENUM_NS (...)

	Q_ENUMS (...)

	Q_FLAG (...)

	Q_FLAG_NS (...)

	Q_FLAGS (...)

	Q_GADGET Q_GADGET

	Q_GADGET_EXPORT (EXPORT_MACRO)

	Q_INTERFACES (...)

	Q_INVOKABLE Q_INVOKABLE

	Q_MOC_INCLUDE Q_MOC_INCLUDE

	Q_NAMESPACE Q_NAMESPACE

	Q_NAMESPACE_EXPORT (EXPORT_MACRO)

	Q_OBJECT Q_OBJECT

	Q_PROPERTY (...)

	Q_REVISION Q_REVISION

	Q_SET_OBJECT_NAME (Object)

	Q_SIGNAL Q_SIGNAL

	Q_SIGNALS Q_SIGNALS

	Q_SLOT Q_SLOT

	Q_SLOTS Q_SLOTS

T	qobject_cast (const QObject *object)

T	qobject_cast (QObject *object)

	QT_NO_NARROWING_CONVERSIONS_IN_CONNECT QT_NO_NARROWING_CONVERSIONS_IN_CONNECT

void	removeEventFilter (QObject *obj)

void	setObjectName (const QString &name)

void	setObjectName (QAnyStringView name)

void	setParent (QObject *parent)

bool	setProperty (const char *name, const QVariant &value)

bool	setProperty (const char *name, QVariant &&value)

bool	signalsBlocked () const const

int	startTimer (int interval, Qt::TimerType timerType)

int	startTimer (std::chrono::milliseconds interval, Qt::TimerType timerType)

QThread *	thread () const const

Additional Inherited Members
Static Public Member Functions inherited from QObject
QMetaObject::Connection	connect (const QObject sender, const char signal, const QObject receiver, const char method, Qt::ConnectionType type)

QMetaObject::Connection	connect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method, Qt::ConnectionType type)

QMetaObject::Connection	connect (const QObject sender, PointerToMemberFunction signal, const QObject context, Functor functor, Qt::ConnectionType type)

QMetaObject::Connection	connect (const QObject sender, PointerToMemberFunction signal, const QObject receiver, PointerToMemberFunction method, Qt::ConnectionType type)

QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, Functor functor)

bool	disconnect (const QMetaObject::Connection &connection)

bool	disconnect (const QObject sender, const char signal, const QObject receiver, const char method)

bool	disconnect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method)

bool	disconnect (const QObject sender, PointerToMemberFunction signal, const QObject receiver, PointerToMemberFunction method)

QString	tr (const char sourceText, const char disambiguation, int n)

Public Attributes inherited from QAbstractItemDelegate
	EditNextItem

	EditPreviousItem

	NoHint

	RevertModelCache

	SubmitModelCache

Public Attributes inherited from QObject
typedef	QObjectList

Protected Member Functions inherited from QObject
virtual void	childEvent (QChildEvent *event)

virtual void	connectNotify (const QMetaMethod &signal)

virtual void	customEvent (QEvent *event)

virtual void	disconnectNotify (const QMetaMethod &signal)

bool	isSignalConnected (const QMetaMethod &signal) const const

int	receivers (const char *signal) const const

QObject *	sender () const const

int	senderSignalIndex () const const

virtual void	timerEvent (QTimerEvent *event)

Detailed Description

KFileItemDelegate is intended to be used to provide a KDE file system view, when using one of the standard item views in Qt with KDirModel.

While primarily intended to be used with KDirModel, it uses Qt::DecorationRole and Qt::DisplayRole for the icons and text labels, just like QItemDelegate, and can thus be used with any standard model.

When used with KDirModel however, KFileItemDelegate can change the way the display and/or decoration roles are drawn, based on properties of the file items. For example, if the file item is a symbolic link, it will use an italic font to draw the file name.

KFileItemDelegate also supports showing additional information about the file items below the icon labels.

Which information should be shown, if any, is controlled by the information property, which is a list that can be set by calling setShowInformation(), and read by calling showInformation(). By default this list is empty.

To use KFileItemDelegate, instantiate an object from the delegate, and call setItemDelegate() in one of the standard item views in Qt:

QListView *listview = new QListView(this);
KFileItemDelegate *delegate = new KFileItemDelegate(this);
listview->setItemDelegate(delegate);

Definition at line 55 of file kfileitemdelegate.h.

Member Typedef Documentation

◆ InformationList

typedef QList<Information> KFileItemDelegate::InformationList

Definition at line 164 of file kfileitemdelegate.h.

Member Enumeration Documentation

◆ Information

enum KFileItemDelegate::Information

This enum defines the additional information that can be displayed below item labels in icon views.

The information will only be shown for indexes for which the model provides a valid value for KDirModel::FileItemRole, and only when there's sufficient vertical space to display at least one line of the information, along with the display label.

For the number of items to be shown for folders, the model must provide a valid value for KDirMode::ChildCountRole, in addition to KDirModel::FileItemRole.

Note that KFileItemDelegate will not call KFileItem::determineMimeType() if KFileItem::isMimeTypeKnown() returns false, so if you want to display MIME types you should use a KMimeTypeResolver with the model and the view, to ensure that MIME types are resolved. If the MIME type isn't known, "Unknown" will be displayed until the MIME type has been successfully resolved.

See also: setShowInformation(); showInformation(); information

Enumerator
NoInformation	No additional information will be shown for items.
Size	The file size for files, and the number of items for folders.
Permissions	A UNIX permissions string, e.g. -rwxr-xr-x.
OctalPermissions	The permissions as an octal value, e.g. 0644.
Owner	The user name of the file owner, e.g. root.
OwnerAndGroup	The user and group that owns the file, e.g. root:root.
CreationTime	The date and time the file/folder was created.
ModificationTime	The date and time the file/folder was last modified.
AccessTime	The date and time the file/folder was last accessed.
MimeType	The MIME type for the item, e.g. text/html.
FriendlyMimeType	The descriptive name for the MIME type, e.g. HTML Document.
LinkDest	The destination of a symbolic link. Since 4.5
LocalPathOrUrl	The local path to the file or the URL in case it is not a local file. Since 4.5
Comment	A simple comment that can be displayed to the user as is. Since 4.6

Definition at line 146 of file kfileitemdelegate.h.

Property Documentation

◆ information

InformationList KFileItemDelegate::information

readwrite

This property holds which additional information (if any) should be shown below items in icon views.

Access functions:

void setShownformation(InformationList information)
InformationList showInformation() const

Definition at line 67 of file kfileitemdelegate.h.

◆ jobTransfersVisible

bool KFileItemDelegate::jobTransfersVisible

readwrite

This property determines if there are KIO jobs on a destination URL visible, then they will have a small animation overlay displayed on them.

Definition at line 122 of file kfileitemdelegate.h.

◆ maximumSize

QSize KFileItemDelegate::maximumSize

readwrite

This property holds the maximum size that can be returned by KFileItemDelegate::sizeHint().

If the maximum size is empty, it will be ignored.

Definition at line 107 of file kfileitemdelegate.h.

◆ shadowBlur

qreal KFileItemDelegate::shadowBlur

readwrite

This property holds the blur radius for the text shadow.

The default value for this property is 2.

Access functions:

void setShadowBlur(qreal radius)
qreal shadowBlur() const

Definition at line 100 of file kfileitemdelegate.h.

◆ shadowColor

QColor KFileItemDelegate::shadowColor

readwrite

This property holds the color used for the text shadow.

The alpha value in the color determines the opacity of the shadow. Shadows are only rendered when the alpha value is non-zero. The default value for this property is Qt::transparent.

Access functions:

void setShadowColor(const QColor &color)
QColor shadowColor() const

Definition at line 80 of file kfileitemdelegate.h.

◆ shadowOffset

QPointF KFileItemDelegate::shadowOffset

readwrite

This property holds the horizontal and vertical offset for the text shadow.

The default value for this property is (1, 1).

Access functions:

void setShadowOffset(const QPointF &offset)
QPointF shadowOffset() const

Definition at line 90 of file kfileitemdelegate.h.

◆ showToolTipWhenElided

bool KFileItemDelegate::showToolTipWhenElided

readwrite

This property determines whether a tooltip will be shown by the delegate if the display role is elided.

This tooltip will contain the full display role information. The tooltip will only be shown if the Qt::ToolTipRole differs from Qt::DisplayRole, or if they match, showToolTipWhenElided flag is set and the display role information is elided.

Definition at line 116 of file kfileitemdelegate.h.

Constructor & Destructor Documentation

◆ KFileItemDelegate()

KFileItemDelegate::KFileItemDelegate ( QObject * parent = nullptr )

explicit

Constructs a new KFileItemDelegate.

Parameters

parent The parent object for the delegate.

Definition at line 810 of file kfileitemdelegate.cpp.

◆ ~KFileItemDelegate()

KFileItemDelegate::~KFileItemDelegate ( )

overridedefault

Destroys the item delegate.

Member Function Documentation

◆ createEditor()

QWidget * KFileItemDelegate::createEditor	(	QWidget *	parent,
		const QStyleOptionViewItem &	option,
		const QModelIndex &	index ) const

overridevirtual

Reimplemented from QAbstractItemDelegate.

Definition at line 1320 of file kfileitemdelegate.cpp.

◆ editorEvent()

bool KFileItemDelegate::editorEvent	(	QEvent *	event,
		QAbstractItemModel *	model,
		const QStyleOptionViewItem &	option,
		const QModelIndex &	index )

overridevirtual

Reimplemented from QAbstractItemDelegate.

Definition at line 1334 of file kfileitemdelegate.cpp.

◆ eventFilter()

bool KFileItemDelegate::eventFilter	(	QObject *	object,
		QEvent *	event )

overridevirtual

Reimplemented from QAbstractItemDelegate.

Reimplemented from QObject.

Definition at line 1502 of file kfileitemdelegate.cpp.

◆ helpEvent

bool KFileItemDelegate::helpEvent	(	QHelpEvent *	event,
		QAbstractItemView *	view,
		const QStyleOptionViewItem &	option,
		const QModelIndex &	index )

overrideslot

Reimplemented from QAbstractItemDelegate.

Definition at line 1418 of file kfileitemdelegate.cpp.

◆ iconRect()

QRect KFileItemDelegate::iconRect	(	const QStyleOptionViewItem &	option,
		const QModelIndex &	index ) const

Returns the rectangle of the icon that is aligned inside the decoration rectangle.

Definition at line 976 of file kfileitemdelegate.cpp.

◆ jobTransfersVisible()

bool KFileItemDelegate::jobTransfersVisible ( ) const

Returns whether or not the displaying of job transfers is enabled.

See also: setJobTransfersVisible()

Definition at line 992 of file kfileitemdelegate.cpp.

◆ maximumSize()

QSize KFileItemDelegate::maximumSize ( ) const

Returns the maximum size for KFileItemDelegate::sizeHint().

See also: setMaximumSize()

Definition at line 951 of file kfileitemdelegate.cpp.

◆ paint()

void KFileItemDelegate::paint	(	QPainter *	painter,
		const QStyleOptionViewItem &	option,
		const QModelIndex &	index ) const

overridevirtual

Paints the item indicated by index, using painter.

The item will be drawn in the rectangle specified by option.rect. The correct size for that rectangle can be obtained by calling sizeHint().

This function will use the following data values if the model provides them for the item, in place of the values in option:

Qt::FontRole The font that should be used for the display role.
Qt::TextAlignmentRole The alignment of the display role.
Qt::ForegroundRole The text color for the display role.
Qt::BackgroundRole The background color for the item.

This function is reimplemented from QAbstractItemDelegate.

Parameters

painter	The painter with which to draw the item.
option	The style options that should be used when painting the item.
index	The index to the item that should be painted.

Implements QAbstractItemDelegate.

Definition at line 1115 of file kfileitemdelegate.cpp.

◆ setEditorData()

void KFileItemDelegate::setEditorData	(	QWidget *	editor,
		const QModelIndex &	index ) const

overridevirtual

Reimplemented from QAbstractItemDelegate.

Definition at line 1344 of file kfileitemdelegate.cpp.

◆ setJobTransfersVisible()

void KFileItemDelegate::setJobTransfersVisible ( bool jobTransfersVisible )

Enable/Disable the displaying of an animated overlay that is shown for any destination urls (in the view).

When enabled, the animations (if any) will be drawn automatically.

Only the files/folders that are visible and have jobs associated with them will display the animation. You would likely not want this enabled if you perform some kind of custom painting that takes up a whole item, and will just make this(and what you paint) look funky.

Default is disabled.

Note: The model (KDirModel) needs to have it's method called with the same value, when you make the call to this method.

Definition at line 986 of file kfileitemdelegate.cpp.

◆ setMaximumSize()

void KFileItemDelegate::setMaximumSize ( const QSize & size )

Sets the maximum size for KFileItemDelegate::sizeHint().

See also: maximumSize()

Definition at line 946 of file kfileitemdelegate.cpp.

◆ setModelData()

void KFileItemDelegate::setModelData	(	QWidget *	editor,
		QAbstractItemModel *	model,
		const QModelIndex &	index ) const

overridevirtual

Reimplemented from QAbstractItemDelegate.

Definition at line 1375 of file kfileitemdelegate.cpp.

◆ setShadowBlur()

void KFileItemDelegate::setShadowBlur ( qreal radius )

Sets the blur radius for the text shadow.

See also: shadowBlur()

Definition at line 936 of file kfileitemdelegate.cpp.

◆ setShadowColor()

void KFileItemDelegate::setShadowColor ( const QColor & color )

Sets the color used for drawing the text shadow.

To enable text shadows, set the shadow color to a non-transparent color. To disable text shadows, set the color to Qt::transparent.

See also: shadowColor()

Definition at line 916 of file kfileitemdelegate.cpp.

◆ setShadowOffset()

void KFileItemDelegate::setShadowOffset ( const QPointF & offset )

Sets the horizontal and vertical offset for the text shadow.

See also: shadowOffset()

Definition at line 926 of file kfileitemdelegate.cpp.

◆ setShowInformation() [1/2]

void KFileItemDelegate::setShowInformation ( const InformationList & list )

Sets the list of information lines that are shown below the icon label in list views.

You will typically construct the list like this:

KFileItemDelegate::InformationList list;
list << KFileItemDelegate::FriendlyMimeType << KFileItemDelegate::Size;
delegate->setShowInformation(list);

The information lines will be displayed in the list order. The delegate will first draw the item label, and then as many information lines as will fit in the available space.

Parameters

list	A list of information items that should be shown

Definition at line 897 of file kfileitemdelegate.cpp.

◆ setShowInformation() [2/2]

void KFileItemDelegate::setShowInformation ( Information information )

Sets a single information line that is shown below the icon label in list views.

This is a convenience function for when you only want to show a single line of information.

Parameters

information The information that should be shown

Definition at line 902 of file kfileitemdelegate.cpp.

◆ setShowToolTipWhenElided()

void KFileItemDelegate::setShowToolTipWhenElided ( bool showToolTip )

Sets whether a tooltip should be shown if the display role is elided containing the full display role information.

Note: The tooltip will only be shown if the Qt::ToolTipRole differs from Qt::DisplayRole, or if they match, showToolTipWhenElided flag is set and the display role information is elided.

See also: showToolTipWhenElided()

Definition at line 956 of file kfileitemdelegate.cpp.

◆ setWrapMode()

void KFileItemDelegate::setWrapMode ( QTextOption::WrapMode wrapMode )

When the contents text needs to be wrapped, wrapMode strategy will be followed.

Definition at line 966 of file kfileitemdelegate.cpp.

◆ shadowBlur()

qreal KFileItemDelegate::shadowBlur ( ) const

Returns the blur radius for the text shadow.

See also: setShadowBlur()

Definition at line 941 of file kfileitemdelegate.cpp.

◆ shadowColor()

QColor KFileItemDelegate::shadowColor ( ) const

Returns the color used for the text shadow.

See also: setShadowColor()

Definition at line 921 of file kfileitemdelegate.cpp.

◆ shadowOffset()

QPointF KFileItemDelegate::shadowOffset ( ) const

Returns the offset used for the text shadow.

See also: setShadowOffset()

Definition at line 931 of file kfileitemdelegate.cpp.

◆ shape

QRegion KFileItemDelegate::shape	(	const QStyleOptionViewItem &	option,
		const QModelIndex &	index )

slot

Returns the shape of the item as a region.

The returned region can be used for precise hit testing of the item.

Definition at line 1458 of file kfileitemdelegate.cpp.

◆ showInformation()

KFileItemDelegate::InformationList KFileItemDelegate::showInformation ( ) const

Returns the file item information that should be shown below item labels in list views.

Definition at line 911 of file kfileitemdelegate.cpp.

◆ showToolTipWhenElided()

bool KFileItemDelegate::showToolTipWhenElided ( ) const

Returns whether a tooltip should be shown if the display role is elided containing the full display role information.

Note: The tooltip will only be shown if the Qt::ToolTipRole differs from Qt::DisplayRole, or if they match, showToolTipWhenElided flag is set and the display role information is elided.

See also: setShowToolTipWhenElided()

Definition at line 961 of file kfileitemdelegate.cpp.

◆ sizeHint()

QSize KFileItemDelegate::sizeHint	(	const QStyleOptionViewItem &	option,
		const QModelIndex &	index ) const

overridevirtual

Returns the nominal size for the item referred to by index, given the provided options.

If the model provides a valid Qt::FontRole and/or Qt::TextAlignmentRole for the item, those will be used instead of the ones specified in the style options.

This function is reimplemented from QAbstractItemDelegate.

Parameters

option	The style options that should be used when painting the item.
index	The index to the item for which to return the size hint.

Implements QAbstractItemDelegate.

Definition at line 838 of file kfileitemdelegate.cpp.

◆ updateEditorGeometry()

void KFileItemDelegate::updateEditorGeometry	(	QWidget *	editor,
		const QStyleOptionViewItem &	option,
		const QModelIndex &	index ) const

overridevirtual

Reimplemented from QAbstractItemDelegate.

Definition at line 1383 of file kfileitemdelegate.cpp.

◆ wrapMode()

QTextOption::WrapMode KFileItemDelegate::wrapMode ( ) const

Returns the wrapping strategy followed to show text when it needs wrapping.

Definition at line 971 of file kfileitemdelegate.cpp.

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

KDE's Doxygen guidelines are available online.

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About KIO

KFileItemDelegate

Public Types

Properties

Public Slots

Public Member Functions

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ InformationList

Member Enumeration Documentation

◆ Information

Property Documentation

◆ information

◆ jobTransfersVisible

◆ maximumSize

◆ shadowBlur

◆ shadowColor

◆ shadowOffset

◆ showToolTipWhenElided

Constructor & Destructor Documentation

◆ KFileItemDelegate()

◆ ~KFileItemDelegate()

Member Function Documentation

◆ createEditor()

◆ editorEvent()

◆ eventFilter()

◆ helpEvent

◆ iconRect()

◆ jobTransfersVisible()

◆ maximumSize()

◆ paint()

◆ setEditorData()

◆ setJobTransfersVisible()

◆ setMaximumSize()

◆ setModelData()

◆ setShadowBlur()

◆ setShadowColor()

◆ setShadowOffset()

◆ setShowInformation() [1/2]

◆ setShowInformation() [2/2]

◆ setShowToolTipWhenElided()

◆ setWrapMode()

◆ shadowBlur()

◆ shadowColor()

◆ shadowOffset()

◆ shape

◆ showInformation()

◆ showToolTipWhenElided()

◆ sizeHint()

◆ updateEditorGeometry()

◆ wrapMode()