ONE::gui::LayoutManager Class Reference

Inheritance diagram for ONE::gui::LayoutManager:

[legend]List of all members.

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Detailed Description

lays out Component s in containers

Layout managers set the component's position and size according to the manager's rules, the component's preferred size and the associated LayoutConstraint s.

Author:

Daniel Seibert

Public Member Functions
virtual void	add (Component *comp, const LayoutConstraint *cons)=0
	adds a component to be laid out later
virtual void	layout (Widget *obj, const Bounds &inner)=0
	lays out the given object
virtual Size	preferredLayoutSize (const Widget *obj) const =0
	calculates the preferred size for the given object
virtual void	remove (Component *comp)=0
	removes a component
virtual	~LayoutManager ()

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Constructor & Destructor Documentation

virtual ONE::gui::LayoutManager::~LayoutManager (   )  [inline, virtual]

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Member Function Documentation

virtual void ONE::gui::LayoutManager::add (  Component *  comp, const LayoutConstraint *  cons )  [pure virtual]

adds a component to be laid out later The components are only modified when LayoutManager::layout is called. Parameters: comp  the component cons  a constraint object which helps the layout manager determine the component's placement Implemented in ONE::gui::AlignedLayout, ONE::gui::DeckLayout, ONE::gui::GridLayout, ONE::gui::StackLayout, ONE::gui::ViewportLayout, and ONE::gui::WindowLayout.

virtual void ONE::gui::LayoutManager::layout (  Widget *  obj, const Bounds &  inner )  [pure virtual]

lays out the given object This function will rearrange and resize obj 's content to fit inside inner according to this LayoutManager 's layout strategy. Parameters: obj  the object that will be laid out inner  obj 's inner bounds Implemented in ONE::gui::AlignedLayout, ONE::gui::DeckLayout, ONE::gui::GridLayout, ONE::gui::StackLayout, ONE::gui::ViewportLayout, and ONE::gui::WindowLayout.

virtual Size ONE::gui::LayoutManager::preferredLayoutSize (  const Widget *  obj  )  const [pure virtual]

calculates the preferred size for the given object The size is calculated based on this layout manager's layout strategy and the content's preferred sizes. Note, hovever, that this function does not check for the presence of a border around obj. Parameters: obj  the target of the operation Returns: the optimal size for obj Implemented in ONE::gui::AlignedLayout, ONE::gui::DeckLayout, ONE::gui::GridLayout, ONE::gui::StackLayout, ONE::gui::ViewportLayout, and ONE::gui::WindowLayout.

virtual void ONE::gui::LayoutManager::remove (  Component *  comp  )  [pure virtual]

removes a component Parameters: comp  the component Implemented in ONE::gui::AlignedLayout, ONE::gui::DeckLayout, ONE::gui::GridLayout, ONE::gui::StackLayout, ONE::gui::ViewportLayout, and ONE::gui::WindowLayout.

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