QCheckListItem(3qt)QCheckListItem(3qt)NAMEQCheckListItem - Checkable list view items
SYNOPSIS
#include <qlistview.h>
Inherits QListViewItem.
Public Members
enum Type { RadioButton, CheckBox, Controller, RadioButtonController =
Controller, CheckBoxController }
enum ToggleState { Off, NoChange, On }
QCheckListItem ( QCheckListItem * parent, const QString & text, Type tt
= RadioButtonController )
QCheckListItem ( QCheckListItem * parent, QListViewItem * after, const
QString & text, Type tt = RadioButtonController )
QCheckListItem ( QListViewItem * parent, const QString & text, Type tt
= RadioButtonController )
QCheckListItem ( QListViewItem * parent, QListViewItem * after, const
QString & text, Type tt = RadioButtonController )
QCheckListItem ( QListView * parent, const QString & text, Type tt =
RadioButtonController )
QCheckListItem ( QListView * parent, QListViewItem * after, const
QString & text, Type tt = RadioButtonController )
QCheckListItem ( QListViewItem * parent, const QString & text, const
QPixmap & p )
QCheckListItem ( QListView * parent, const QString & text, const
QPixmap & p )
~QCheckListItem ()
virtual void paintCell ( QPainter * p, const QColorGroup & cg, int
column, int width, int align )
virtual void paintFocus ( QPainter * p, const QColorGroup & cg, const
QRect & r )
virtual void setOn ( bool b )
bool isOn () const
Type type () const
QString text () const
void setTristate ( bool b )
bool isTristate () const
ToggleState state () const
void setState ( ToggleState s )
virtual int rtti () const
Protected Members
virtual void activate ()
void turnOffChild ()
virtual void stateChange ( bool )
DESCRIPTION
The QCheckListItem class provides checkable list view items.
QCheckListItems are used in QListViews to provide QListViewItems that
are checkboxes, radio buttons or controllers.
Checkbox and controller check list items may be inserted at any level
in a list view. Radio button check list items must be children of a
controller check list item.
The item can be checked or unchecked with setOn(). Its type can be
retrieved with type() and its text retrieved with text().
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See also QListViewItem, QListView, and Advanced Widgets.
Member Type Documentation
QCheckListItem::ToggleState
This enum specifies a QCheckListItem's toggle state.
QCheckListItem::Off
QCheckListItem::NoChange
QCheckListItem::On
QCheckListItem::Type
This enum type specifies a QCheckListItem's type:
QCheckListItem::RadioButton
QCheckListItem::CheckBox
QCheckListItem::Controller - obsolete (use RadioButtonController
instead)
QCheckListItem::RadioButtonController
QCheckListItem::CheckBoxController
MEMBER FUNCTION DOCUMENTATIONQCheckListItem::QCheckListItem ( QCheckListItem * parent, const QString &
text, Type tt = RadioButtonController )
Constructs a checkable item with parent parent, text text and of type
tt. Note that a RadioButton must be the child of a
RadioButtonController, otherwise it will not toggle.
QCheckListItem::QCheckListItem ( QCheckListItem * parent, QListViewItem *
after, const QString & text, Type tt = RadioButtonController )
Constructs a checkable item with parent parent, which is after after in
the parent's list of children, and with text text and of type tt. Note
that a RadioButton must be the child of a RadioButtonController,
otherwise it will not toggle.
QCheckListItem::QCheckListItem ( QListViewItem * parent, const QString & text,
Type tt = RadioButtonController )
Constructs a checkable item with parent parent, text text and of type
tt. Note that this item must not be a RadioButton. Radio buttons must
be children of a RadioButtonController.
QCheckListItem::QCheckListItem ( QListViewItem * parent, QListViewItem *
after, const QString & text, Type tt = RadioButtonController )
Constructs a checkable item with parent parent, which is after after in
the parent's list of children, with text text and of type tt. Note that
this item must not be a RadioButton. Radio buttons must be children of
a RadioButtonController.
QCheckListItem::QCheckListItem ( QListView * parent, const QString & text,
Type tt = RadioButtonController )
Constructs a checkable item with parent parent, text text and of type
tt. Note that tt must not be RadioButton. Radio buttons must be
children of a RadioButtonController.
QCheckListItem::QCheckListItem ( QListView * parent, QListViewItem * after,
const QString & text, Type tt = RadioButtonController )
Constructs a checkable item with parent parent, which is after after in
the parent's list of children, with text text and of type tt. Note that
tt must not be RadioButton. Radio buttons must be children of a
RadioButtonController.
QCheckListItem::QCheckListItem ( QListViewItem * parent, const QString & text,
const QPixmap & p )
Constructs a RadioButtonController item with parent parent, text text
and pixmap p.
QCheckListItem::QCheckListItem ( QListView * parent, const QString & text,
const QPixmap & p )
Constructs a RadioButtonController item with parent parent, text text
and pixmap p.
QCheckListItem::~QCheckListItem ()
Destroys the item, and all its children to any depth, freeing up all
allocated resources.
void QCheckListItem::activate () [virtual protected]
Toggle check box or set radio button to on.
Reimplemented from QListViewItem.
bool QCheckListItem::isOn () const
Returns TRUE if the item is toggled on; otherwise returns FALSE.
bool QCheckListItem::isTristate () const
Returns TRUE if the item is tristate; otherwise returns FALSE.
See also setTristate().
void QCheckListItem::paintCell ( QPainter * p, const QColorGroup & cg, int
column, int width, int align ) [virtual]
Paints the item using the painter p and the color group cg. The item is
in column column, has width width and has alignment align. (See
Qt::AlignmentFlags for valid alignments.)
Reimplemented from QListViewItem.
void QCheckListItem::paintFocus ( QPainter * p, const QColorGroup & cg, const
QRect & r ) [virtual]
Draws the focus rectangle r using the color group cg on the painter p.
Reimplemented from QListViewItem.
int QCheckListItem::rtti () const [virtual]
Returns 1.
Make your derived classes return their own values for rtti(), and you
can distinguish between list view items. You should use values greater
than 1000, to allow for extensions to this class.
Reimplemented from QListViewItem.
void QCheckListItem::setOn ( bool b ) [virtual]
Sets the button on if b is TRUE, otherwise sets it off. Maintains radio
button exclusivity.
void QCheckListItem::setState ( ToggleState s )
Sets the toggle state of the checklistitem to s. s can be Off, NoChange
or On.
Tristate can only be enabled for CheckBox or CheckBoxController,
therefore the NoChange only applies to them.
Setting the state to On or Off on a CheckBoxController will recursivly
set the states of its children to the same state.
Setting the state to NoChange on a CheckBoxController will make it
recursivly recall the previous stored state of its children. If there
was no previous stored state the children are all set to On.
void QCheckListItem::setTristate ( bool b )
Sets tristate to b if the Type is either a CheckBoxController or a
CheckBox.
CheckBoxControllers are tristate by default.
See also state() and isTristate().
ToggleState QCheckListItem::state () const
Returns the state of the item.
See also QCheckListItem::ToggleState.
void QCheckListItem::stateChange ( bool ) [virtual protected]
This virtual function is called when the item changes its state.
NoChange (if tristate is enabled and the type is either CheckBox or
CheckBoxController) reports the same as Off, so use state() to
determine if the state is actually Off or NoChange.
QString QCheckListItem::text () const
Returns the item's text.
void QCheckListItem::turnOffChild () [protected]
If this is a RadioButtonController that has RadioButton children, turn
off the child that is on.
Type QCheckListItem::type () const
Returns the type of this item.
SEE ALSO
http://doc.trolltech.com/qchecklistitem.html
http://www.trolltech.com/faq/tech.html
COPYRIGHT
Copyright 1992-2007 Trolltech ASA, http://www.trolltech.com. See the
license file included in the distribution for a complete license
statement.
AUTHOR
Generated automatically from the source code.
BUGS
If you find a bug in Qt, please report it as described in
http://doc.trolltech.com/bughowto.html. Good bug reports help us to
help you. Thank you.
The definitive Qt documentation is provided in HTML format; it is
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by Trolltech.
If you find errors in this manual page, please report them to qt-
bugs@trolltech.com. Please include the name of the manual page
(qchecklistitem.3qt) and the Qt version (3.3.8).
Trolltech AS 2 February 2007 QCheckListItem(3qt)
