Wt  4.0.2
Public Member Functions | Private Member Functions | List of all members
Wt::WFitLayout Class Reference

A layout manager which spans a single widget to all available space. More...

#include <Wt/WFitLayout.h>

Inheritance diagram for Wt::WFitLayout:
Inheritance graph
[legend]

Public Member Functions

 WFitLayout ()
 Creates a new fit layout.
 
virtual void addItem (std::unique_ptr< WLayoutItem > item) override
 Adds a layout item. More...
 
virtual std::unique_ptr< WLayoutItemremoveItem (WLayoutItem *item) override
 Removes a layout item (widget or nested layout). More...
 
virtual WLayoutItemitemAt (int index) const override
 Returns the layout item at a specific index. More...
 
virtual int indexOf (WLayoutItem *item) const override
 Returns the index of a given item. More...
 
virtual int count () const override
 Returns the number of items in this layout. More...
 
- Public Member Functions inherited from Wt::WLayout
virtual ~WLayout ()
 Destructor. More...
 
void setPreferredImplementation (LayoutImplementation implementation)
 Set the preferred layout implementation. More...
 
void addWidget (std::unique_ptr< WWidget > widget)
 Adds the given widget to the layout. More...
 
std::unique_ptr< WWidgetremoveWidget (WWidget *widget)
 Removes the given widget from the layout. More...
 
virtual WWidgetItemfindWidgetItem (WWidget *widget) override
 Finds the widget item associated with the given widget.
 
virtual WWidgetwidget () override
 Returns the widget that is held by this WLayoutItem. More...
 
virtual WLayoutlayout () override
 Returns the layout that implements this WLayoutItem. More...
 
virtual WLayoutparentLayout () const override
 Returns the layout in which this item is contained.
 
void setContentsMargins (int left, int top, int right, int bottom)
 Set contents margins (in pixels). More...
 
void getContentsMargins (int *left, int *top, int *right, int *bottom) const
 Returns the contents margins. More...
 
- Public Member Functions inherited from Wt::WLayoutItem
virtual ~WLayoutItem ()
 Destructor.
 
- Public Member Functions inherited from Wt::WObject
void addChild (std::unique_ptr< WObject > child)
 Add a child WObject whose lifetime is determined by this WObject.
 
template<typename Child >
Child * addChild (std::unique_ptr< Child > child)
 Add a child WObject, returning a raw pointer. More...
 
std::unique_ptr< WObjectremoveChild (WObject *child)
 Remove a child WObject, so its lifetime is no longer determined by this WObject.
 
virtual const std::string id () const
 Returns the (unique) identifier for this object. More...
 
virtual void setObjectName (const std::string &name)
 Sets an object name. More...
 
virtual std::string objectName () const
 Returns the object name. More...
 
void resetLearnedSlots ()
 Resets learned stateless slot implementations. More...
 
template<class T >
void resetLearnedSlot (void(T::*method)())
 Resets a learned stateless slot implementation. More...
 
template<class T >
WStatelessSlot * implementStateless (void(T::*method)())
 Declares a slot to be stateless and learn client-side behaviour on first invocation. More...
 
template<class T >
WStatelessSlot * implementStateless (void(T::*method)(), void(T::*undoMethod)())
 Declares a slot to be stateless and learn client-side behaviour in advance. More...
 
void isNotStateless ()
 Marks the current function as not stateless. More...
 
template<class T >
WStatelessSlot * implementJavaScript (void(T::*method)(), const std::string &jsCode)
 Provides a JavaScript implementation for a method. More...
 
- Public Member Functions inherited from Wt::Core::observable
 observable () noexcept
 Default constructor.
 
virtual ~observable ()
 Destructor. More...
 

Private Member Functions

virtual void setParentWidget (WWidget *parent) override
 Internal method.
 

Additional Inherited Members

- Public Types inherited from Wt::WObject
typedef void(WObject::* Method) ()
 Typedef for a WObject method without arguments.
 
- Static Public Member Functions inherited from Wt::WLayout
static void setDefaultImplementation (LayoutImplementation implementation)
 Sets the preferred layout implementation globally. More...
 
- Protected Member Functions inherited from Wt::WLayout
 WLayout ()
 Create a layout.
 
void update (WLayoutItem *item=nullptr)
 Update the layout. More...
 
- Protected Member Functions inherited from Wt::WObject
virtual WStatelessSlot * getStateless (Method method)
 On-demand stateless slot implementation. More...
 

Detailed Description

A layout manager which spans a single widget to all available space.

This layout manager may manage only a single child widget, and sizes that widget so that it uses all space available in the parent.

Member Function Documentation

void Wt::WFitLayout::addItem ( std::unique_ptr< WLayoutItem item)
overridevirtual

Adds a layout item.

The item may be a widget or nested layout.

How the item is layed out with respect to siblings is implementation specific to the layout manager. In some cases, a layout manager will overload this method with extra arguments that specify layout options.

See also
removeItem(WLayoutItem *), addWidget(WWidget *)

Implements Wt::WLayout.

int Wt::WFitLayout::count ( ) const
overridevirtual

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::WFitLayout::indexOf ( WLayoutItem item) const
overridevirtual

Returns the index of a given item.

The default implementation loops over all items, and returns the index for which itemAt(index) equals item.

See also
itemAt(int) const

Reimplemented from Wt::WLayout.

WLayoutItem * Wt::WFitLayout::itemAt ( int  index) const
overridevirtual

Returns the layout item at a specific index.

If there is no item at the index, 0 is returned.

See also
indexOf(WLayoutItem *) const, count()

Implements Wt::WLayout.

std::unique_ptr< WLayoutItem > Wt::WFitLayout::removeItem ( WLayoutItem item)
overridevirtual

Removes a layout item (widget or nested layout).

See also
addItem(WLayoutItem *), removeWidget(WWidget *)

Implements Wt::WLayout.


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