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QUndoView Class ReferenceThe QUndoView class displays the contents of a QUndoStack. More... #include <QUndoView>Inherits: QListView. This class was introduced in Qt 4.2. Properties
Public Functions
Public Slots
Additional Inherited Members
Detailed DescriptionThe QUndoView class displays the contents of a QUndoStack. QUndoView is a QListView which displays the list of commands pushed on an undo stack. The most recently executed command is always selected. Selecting a different command results in a call to QUndoStack::setIndex(), rolling the state of the document backwards or forward to the new command. The stack can be set explicitly with setStack(). Alternatively, a QUndoGroup object can be set with setGroup(). The view will then update itself automatically whenever the active stack of the group changes.
Property Documentation
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| QIcon | cleanIcon () const |
| void | setCleanIcon ( const QIcon & icon ) |
emptyLabel : QString
This property holds the label used for the empty state.
The empty label is the topmost element in the list of commands, which represents the state of the document before any commands were pushed on the stack. The default is the string "<empty>".
Access functions:
| QString | emptyLabel () const |
| void | setEmptyLabel ( const QString & label ) |
Member Function Documentation
QUndoView::QUndoView ( QWidget * parent = 0 )
Constructs a new view with parent parent.
QUndoView::QUndoView ( QUndoStack * stack, QWidget * parent = 0 )
Constructs a new view with parent parent and sets the observed stack to stack.
QUndoView::QUndoView ( QUndoGroup * group, QWidget * parent = 0 )
Constructs a new view with parent parent and sets the observed group to group.
The view will update itself autmiatically whenever the active stack of the group changes.
QUndoView::~QUndoView ()
Destroys this view.
QUndoGroup * QUndoView::group () const
Returns the group displayed by this view.
If the view is not looking at group, this function returns 0.
See also setGroup() and setStack().
void QUndoView::setGroup ( QUndoGroup * group ) [slot]
Sets the group displayed by this view to group. If group is 0, the view will be empty.
The view will update itself autmiatically whenever the active stack of the group changes.
See also group() and setStack().
void QUndoView::setStack ( QUndoStack * stack ) [slot]
Sets the stack displayed by this view to stack. If stack is 0, the view will be empty.
If the view was previously looking at a QUndoGroup, the group is set to 0.
See also stack() and setGroup().
QUndoStack * QUndoView::stack () const
Returns the stack currently displayed by this view. If the view is looking at a QUndoGroup, this the group's active stack.
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