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The QListWidgetItem class provides an item for use with the QListWidget item view class. More...
#include <QListWidgetItem>
The QListWidgetItem class provides an item for use with the QListWidget item view class.
QListWidgetItem is used to represent items in a list provided by the QListWidget class. Each item can hold several pieces of information, and will display these appropriately.
The item view convenience classes use a classic item-based interface rather than a pure model/view approach. For a more flexible list view widget, consider using the QListView class with a standard model.
List items can be automatically inserted into a list when they are constructed by specifying the list widget:
new QListWidgetItem(tr("Hazel"), listWidget);
They can also be created without a parent widget, and later inserted into a list (see QListWidget::insertItem()).
List items are typically used to display text() and an icon(). These are set with the setText() and setIcon() functions. The appearance of the text can be customized with setFont(), setForeground(), and setBackground(). Text in list items can be aligned using the setTextAlignment() function. Tooltips, status tips and "What's This?" help can be added to list items with setToolTip(), setStatusTip(), and setWhatsThis().
By default, items are enabled, selectable, checkable, and can be the source of a drag and drop operation. Each item's flags can be changed by calling setFlags() with the appropriate value (see Qt::ItemFlags). Checkable items can be checked, unchecked and partially checked with the setCheckState() function. The corresponding checkState() function indicates what check state the item currently has.
The isHidden() function can be used to determine whether the item is hidden. Items can be hidden with setHidden().
When subclassing QListWidgetItem to provide custom items, it is possible to define new types for them so that they can be distinguished from standard items. The constructors for subclasses that require this feature need to call the base class constructor with a new type value equal to or greater than UserType.
See also QListWidget, Model/View Programming, QTreeWidgetItem, and QTableWidgetItem.
This enum describes the types that are used to describe list widget items.
| Constant | Value | Description |
|---|---|---|
| QListWidgetItem::Type | 0 | The default type for list widget items. |
| QListWidgetItem::UserType | 1000 | The minimum value for custom types. Values below UserType are reserved by Qt. |
You can define new user types in QListWidgetItem subclasses to ensure that custom items are treated specially.
See also type().
Constructs an empty list widget item of the specified type with the given parent. If the parent is not specified, the item will need to be inserted into a list widget with QListWidget::insertItem().
See also type().
Constructs an empty list widget item of the specified type with the given text and parent. If the parent is not specified, the item will need to be inserted into a list widget with QListWidget::insertItem().
See also type().
Constructs an empty list widget item of the specified type with the given icon, text and parent. If the parent is not specified, the item will need to be inserted into a list widget with QListWidget::insertItem().
See also type().
Constructs a copy of other. Note that type() and listWidget() are not copied.
This function is useful when reimplementing clone().
This function was introduced in Qt 4.1.
Destroys the list item.
Returns the brush used to display the list item's background.
This function was introduced in Qt 4.2.
See also setBackground() and foreground().
Returns the checked state of the list item (see Qt::CheckState).
See also setCheckState() and flags().
Creates an exact copy of the item.
This function returns the item's data for a given role (see Qt::ItemDataRole). Reimplement this function if you need extra roles or special behavior for certain roles.
See also setData().
Returns the item flags for this item (see Qt::ItemFlags).
See also setFlags().
Returns the font used to display this list item's text.
See also setFont().
Returns the brush used to display the list item's foreground (e.g. text).
This function was introduced in Qt 4.2.
See also setForeground() and background().
Returns the list item's icon.
See also setIcon() and iconSize.
Returns true if the item is hidden, otherwise returns false.
This function was introduced in Qt 4.2.
See also setHidden().
Returns true if the item is selected, otherwise returns false.
This function was introduced in Qt 4.2.
See also setSelected().
Returns the list widget that contains the item.
Reads the item from stream in.
See also write().
Sets the background brush of the list item to the given brush.
This function was introduced in Qt 4.2.
See also background() and setForeground().
Sets the check state of the list item to state.
See also checkState().
This function sets the data for a given role to the given value (see Qt::ItemDataRole). Reimplement this function if you need extra roles or special behavior for certain roles.
See also Qt::ItemDataRole and data().
Sets the item flags for the list item to flags (see Qt::ItemFlags).
See also flags().
Sets the font used when painting the item to the given font.
See also font().
Sets the foreground brush of the list item to the given brush.
This function was introduced in Qt 4.2.
See also foreground() and setBackground().
Hides the item if hide is true, otherwise shows the item.
This function was introduced in Qt 4.2.
See also isHidden().
Sets the icon for the list item to the given icon.
See also icon(), text(), and iconSize.
Sets the selected state of the item to select.
This function was introduced in Qt 4.2.
See also isSelected().
Sets the size hint for the list item to be size. If no size hint is set, the item delegate will compute the size hint based on the item data.
This function was introduced in Qt 4.1.
See also sizeHint().
Sets the status tip for the list item to the text specified by statusTip. QListWidget mouse tracking needs to be enabled for this feature to work.
See also statusTip(), setToolTip(), and setWhatsThis().
Sets the text for the list widget item's to the given text.
See also text().
Sets the list item's text alignment to alignment (see Qt::AlignmentFlag).
See also textAlignment().
Sets the tooltip for the list item to the text specified by toolTip.
See also toolTip(), setStatusTip(), and setWhatsThis().
Sets the "What's This?" help for the list item to the text specified by whatsThis.
See also whatsThis(), setStatusTip(), and setToolTip().
Returns the size hint set for the list item.
This function was introduced in Qt 4.1.
See also setSizeHint().
Returns the list item's status tip.
See also setStatusTip().
Returns the list item's text.
See also setText().
Returns the text alignment for the list item (see Qt::AlignmentFlag).
See also setTextAlignment().
Returns the list item's tooltip.
See also setToolTip(), statusTip(), and whatsThis().
Returns the type passed to the QListWidgetItem constructor.
Returns the list item's "What's This?" help text.
See also setWhatsThis(), statusTip(), and toolTip().
Writes the item to stream out.
See also read().
Returns true if this item's text is less then other item's text; otherwise returns false.
Assigns other's data and flags to this item. Note that type() and listWidget() are not copied.
This function is useful when reimplementing clone().
Writes the list widget item item to stream out.
This operator uses QListWidgetItem::write().
See also Format of the QDataStream Operators.
Reads a list widget item from stream in into item.
This operator uses QListWidgetItem::read().
See also Format of the QDataStream Operators.
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