Wt
3.2.1
|
A default layout manager. More...
#include <Wt/WDefaultLayout>
Public Member Functions | |
WDefaultLayout (WWidget *parent=0) | |
Creates a new WDefaultLayout. | |
~WDefaultLayout () | |
Destructor. | |
virtual void | addItem (WLayoutItem *item) |
Adds a layout item. | |
virtual void | removeItem (WLayoutItem *item) |
Removes a layout item (widget or nested layout). | |
virtual WLayoutItem * | itemAt (int index) const |
Returns the layout item at a specific index. | |
virtual int | indexOf (WLayoutItem *item) const |
Returns the index of a given item. | |
virtual int | count () const |
Returns the number of items in this layout. | |
virtual void | clear () |
Removes and deletes all child widgets and nested layouts. |
A default layout manager.
The default layout does not attempt to resize any of the widgets, and puts all widgets vertically above each other.
void Wt::WDefaultLayout::addItem | ( | WLayoutItem * | item | ) | [virtual] |
Adds a layout item.
The item may be a widget or nested layout, and is added below the last added item.
Implements Wt::WLayout.
void Wt::WDefaultLayout::clear | ( | ) | [virtual] |
Removes and deletes all child widgets and nested layouts.
This is similar to WContainerWidget::clear(), with the exception that the layout itself is not deleted.
Implements Wt::WLayout.
int Wt::WDefaultLayout::count | ( | ) | const [virtual] |
Returns the number of items in this layout.
This may be a theoretical number, which is greater than the actual number of items. It can be used to iterate over the items in the layout, in conjunction with itemAt().
Implements Wt::WLayout.
int Wt::WDefaultLayout::indexOf | ( | WLayoutItem * | item | ) | const [virtual] |
Returns the index of a given item.
The default implementation loops over all items, and returns the index for which itemAt(index) equals item
.
Reimplemented from Wt::WLayout.
WLayoutItem * Wt::WDefaultLayout::itemAt | ( | int | index | ) | const [virtual] |
Returns the layout item at a specific index.
If there is no item at the index
, 0
is returned.
Implements Wt::WLayout.
void Wt::WDefaultLayout::removeItem | ( | WLayoutItem * | item | ) | [virtual] |
Removes a layout item (widget or nested layout).
Implements Wt::WLayout.