KFileItemDelegate Class Reference

from PyKDE4.kio import *

Inherits: QAbstractItemDelegate → QObject

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);

Enumerations
Information	{ NoInformation, Size, Permissions, OctalPermissions, Owner, OwnerAndGroup, CreationTime, ModificationTime, AccessTime, MimeType, FriendlyMimeType }
Methods
	__init__ (self, QObject parent=0)
	__init__ (self, KFileItemDelegate a0)
QWidget	createEditor (self, QWidget parent, QStyleOptionViewItem option, QModelIndex index)
bool	editorEvent (self, QEvent event, QAbstractItemModel model, QStyleOptionViewItem option, QModelIndex index)
bool	eventFilter (self, QObject object, QEvent event)
bool	helpEvent (self, QHelpEvent event, QAbstractItemView view, QStyleOptionViewItem option, QModelIndex index)
QSize	maximumSize (self)
	paint (self, QPainter painter, QStyleOptionViewItem option, QModelIndex index)
	setEditorData (self, QWidget editor, QModelIndex index)
	setMaximumSize (self, QSize size)
	setModelData (self, QWidget editor, QAbstractItemModel model, QModelIndex index)
	setShadowBlur (self, float radius)
	setShadowColor (self, QColor color)
	setShadowOffset (self, QPointF offset)
	setShowInformation (self, KFileItemDelegate.InformationList list)
	setShowInformation (self, KFileItemDelegate.Information information)
	setShowToolTipWhenElided (self, bool showToolTip)
float	shadowBlur (self)
QColor	shadowColor (self)
QPointF	shadowOffset (self)
QRegion	shape (self, QStyleOptionViewItem option, QModelIndex index)
KFileItemDelegate.InformationList	showInformation (self)
bool	showToolTipWhenElided (self)
QSize	sizeHint (self, QStyleOptionViewItem option, QModelIndex index)
	updateEditorGeometry (self, QWidget editor, QStyleOptionViewItem option, QModelIndex index)

Method Documentation

__init__	(	self,
		QObject	parent=0
	)

Constructs a new KFileItemDelegate.

Parameters:

parent

The parent object for the delegate.

__init__	(	self,
		KFileItemDelegate	a0
	)

QWidget createEditor	(	self,
		QWidget	parent,
		QStyleOptionViewItem	option,
		QModelIndex	index
	)

Reimplemented from QAbstractItemDelegate.

bool editorEvent	(	self,
		QEvent	event,
		QAbstractItemModel	model,
		QStyleOptionViewItem	option,
		QModelIndex	index
	)

Reimplemented from QAbstractItemDelegate.

bool eventFilter	(	self,
		QObject	object,
		QEvent	event
	)

Reimplemented from QAbstractItemDelegate.

bool helpEvent	(	self,
		QHelpEvent	event,
		QAbstractItemView	view,
		QStyleOptionViewItem	option,
		QModelIndex	index
	)

Reimplemented from QAbstractItemDelegate.

QSize maximumSize ( self )

Returns the maximum size for KFileItemDelegate.sizeHint().

See also:: setMaximumSize()

Since:: 4.1

paint	(	self,
		QPainter	painter,
		QStyleOptionViewItem	option,
		QModelIndex	index
	)

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.AlignmentRole 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.

setEditorData	(	self,
		QWidget	editor,
		QModelIndex	index
	)

Reimplemented from QAbstractItemDelegate.

setMaximumSize	(	self,
		QSize	size
	)

Sets the maximum size for KFileItemDelegate.sizeHint().

See also:: maximumSize()

Since:: 4.1

setModelData	(	self,
		QWidget	editor,
		QAbstractItemModel	model,
		QModelIndex	index
	)

Reimplemented from QAbstractItemDelegate.

setShadowBlur	(	self,
		float	radius
	)

Sets the blur radius for the text shadow.

See also:: shadowBlur()

setShadowColor	(	self,
		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()

setShadowOffset	(	self,
		QPointF	offset
	)

Sets the horizontal and vertical offset for the text shadow.

See also:: shadowOffset()

setShowInformation	(	self,
		KFileItemDelegate.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

setShowInformation	(	self,
		KFileItemDelegate.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

setShowToolTipWhenElided	(	self,
		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()

Since:: 4.2

float shadowBlur ( self )

Returns the blur radius for the text shadow.

See also:: setShadowBlur()

QColor shadowColor ( self )

Returns the color used for the text shadow.

See also:: setShadowColor()

QPointF shadowOffset ( self )

Returns the offset used for the text shadow.

See also:: setShadowOffset()

QRegion shape	(	self,
		QStyleOptionViewItem	option,
		QModelIndex	index
	)

Returns the shape of the item as a region. The returned region can be used for precise hit testing of the item.

KFileItemDelegate.InformationList showInformation ( self )

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

bool showToolTipWhenElided ( self )

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()

Since:: 4.2

QSize sizeHint	(	self,
		QStyleOptionViewItem	option,
		QModelIndex	index
	)

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.AlignmentRole 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.

updateEditorGeometry	(	self,
		QWidget	editor,
		QStyleOptionViewItem	option,
		QModelIndex	index
	)

Reimplemented from QAbstractItemDelegate.

Enumeration Documentation

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()

See also:: showInformation()

See also:: information

Enumerator:

NoInformation
Size
Permissions
OctalPermissions
Owner
OwnerAndGroup
CreationTime
ModificationTime
AccessTime
MimeType
FriendlyMimeType

KFileItemDelegate Class Reference

Detailed Description

Enumerations

Methods

Method Documentation

Enumeration Documentation

Modules