haiku/docs/user/interface/SeparatorItem.dox

/*
 * Copyright 2014 Haiku, Inc. All rights reserved.
 * Distributed under the terms of the MIT License.
 *
 * Authors:
 *		John Scipione, jscipione@gmail.com
 *
 * Corresponds to:
 *		headers/os/interface/SeparatorItem.h	 hrev46970
 *		src/kits/interface/SeparatorItem.cpp	 hrev46970
 */


/*!
	\file SeparatorItem.h
	\ingroup interface
	\ingroup libbe
	\brief BSeparatorItem class definition.
*/


/*!
	\class BSeparatorItem
	\ingroup interface
	\ingroup libbe
	\brief Display separator item for BMenu class.

	A BSeparatorItem is used to separate groups of menu items in a BMenu.
	It is drawn as a horizontal line and cannot be selected or highlighted.

	\warning BSeparatorItems are only meant to be used with menus whose
	         items are arranged in a \c B_ITEMS_IN_COLUMN layout.

	\since BeOS R3
*/


/*!
	\fn BSeparatorItem::BSeparatorItem()
	\brief Creates a new BSeparatorItem object.

	The creates a new BSeparatorItem from BMenuItem with a blank label and
	\c NULL message, then disables it.

	\since BeOS R3
*/


/*!
	\fn BSeparatorItem::BSeparatorItem(BMessage* data)
	\brief Archive constructor.

	\param data The message \a data to construct the separator item from.

	\since BeOS R3
*/


/*!
	\fn BSeparatorItem::~BSeparatorItem()
	\brief Destructor, does nothing.

	\since BeOS R3
*/


/*!
	\name Archiving
*/


//! @{


/*!
	\fn status_t BSeparatorItem::Archive(BMessage* data, bool deep) const
	\brief Archives the the BSeparatorItem object into the \a data message.

	\param data A pointer to the BMessage to archive the object into.
	\param deep This parameter has no effect for this class.

	\return A status code, \c B_OK if everything went well or an error code
	        otherwise.
	\retval B_OK The object was archived successfully.
	\retval B_NO_MEMORY Ran out of memory while archiving the object.

	\since BeOS R3
*/


/*!
	\fn BArchivable* BSeparatorItem::Instantiate(BMessage* data)
	\brief Creates a new BSeparatorItem object from an \a data message.

	\return A newly created BSeparatorItem object or \c NULL if the message
	        doesn't contain an archived BSeparatorItem.

	\since BeOS R3
*/


//! @}


/*!
	\fn void BSeparatorItem::SetEnabled(bool enable)
	\brief Does nothing, this method is defined to override the default
	       BMenuItem behavior.

	\param enable Not used.

	\since BeOS R3
*/


/*!
	\fn void BSeparatorItem::GetContentSize(float* _width, float* _height)
	\brief Fills out \a _width and \a _height with the content rectangle
	       dimensions.

	You only need to call this method if you're implementing your own
	DrawContent() method to override how the contents of the separator
	are drawn.

	\param _width Filled out with the width of the content rectangle.
	\param _height Filled out with the height of the content rectangle.

	\sa ContentLocation()
	\sa DrawContent()

	\since BeOS R3
*/


/*!
	\fn void BSeparatorItem::Draw()
	\brief Hook method used to draw the menu items.

	This method is called by automatically by BMenu::Draw(). You should not need to
	call this method yourself but you may want to override it in a derived class
	to do something other than the default.

	The default draws a light grey horizontal line through the middle of the item.

	\since BeOS R3
*/