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().
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.
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.
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.
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.
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.
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.
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.)
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.
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.
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.
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