RenderingWindow is a RenderingSurface that can be "drawn back" onto another RenderingSurface and is primarily intended to be used as a kind of cache for rendered imagery. More...

Inheritance diagram for CEGUI::RenderingWindow:

Collaboration diagram for CEGUI::RenderingWindow:

Public Member Functions
	RenderingWindow (TextureTarget &target, RenderingSurface &owner)
	Constructor for RenderingWindow objects. More...

	~RenderingWindow ()
	Destructor for RenderingWindow objects.

void	setClippingRegion (const Rect &region)
	Set the clipping region that will be used when rendering the imagery for this RenderingWindow back onto the RenderingSurface that owns it. More...

void	setPosition (const Vector2 &position)
	Set the two dimensional position of the RenderingWindow in pixels. The origin is at the top-left corner. More...

void	setSize (const Size &size)
	Set the size of the RenderingWindow in pixels. More...

void	setRotation (const Vector3 &rotation)
	Set the rotation factors to be used when rendering the RenderingWindow back onto it's owning RenderingSurface. More...

void	setPivot (const Vector3 &pivot)
	Set the location of the pivot point around which the RenderingWindow will be rotated. More...

const Vector2 &	getPosition () const
	Return the current pixel position of the RenderingWindow. The origin is at the top-left corner. More...

const Size &	getSize () const
	Return the current size of the RenderingWindow in pixels. More...

const Vector3 &	getRotation () const
	Return the current rotations being applied to the RenderingWindow, in degrees. More...

const Vector3 &	getPivot () const
	Return the rotation pivot point location for the RenderingWindow. More...

const TextureTarget &	getTextureTarget () const
	Return the TextureTarget object that is the target for content rendered to this RenderingWindows. This is the same object passed into the constructor. More...

TextureTarget &	getTextureTarget ()

void	update (const float elapsed)
	Peform time based updated for the RenderingWindow. More...

void	setRenderEffect (RenderEffect *effect)
	Set the RenderEffect that should be used with the RenderingWindow. This may be 0 to remove a previously set RenderEffect. More...

RenderEffect *	getRenderEffect ()
	Return a pointer to the RenderEffect currently being used with the RenderingWindow. A return value of 0 indicates that no RenderEffect is being used. More...

void	realiseGeometry ()
	generate geometry to be used when rendering back the RenderingWindow to it's owning RenderingSurface. More...

void	invalidateGeometry ()
	Mark the geometry used when rendering the RenderingWindow back to it's owning RenderingSurface as invalid so that it gets regenerated on the next rendering pass. More...

const RenderingSurface &	getOwner () const
	Return the RenderingSurface that owns the RenderingWindow. This is also the RenderingSurface that will be used when the RenderingWindow renders back it's cached imagery content. More...

RenderingSurface &	getOwner ()

void	unprojectPoint (const Vector2 &p_in, Vector2 &p_out)
	Fill in Vector2 object p_out with an unprojected version of the point described by Vector2 p_in.

void	draw ()
	Draw the GeometryBuffers for all rendering queues to the RenderTarget that this RenderingSurface is targetting. More...

void	invalidate ()
	Marks the RenderingSurface as invalid, causing the geometry to be rerendered to the RenderTarget next time draw is called. More...

bool	isRenderingWindow () const
	Return whether this RenderingSurface is actually an instance of the RenderingWindow subclass. More...

Public Member Functions inherited from CEGUI::RenderingSurface
	RenderingSurface (RenderTarget &target)
	Constructor for RenderingSurface objects. More...

virtual	~RenderingSurface ()
	Destructor for RenderingSurface objects.

void	addGeometryBuffer (const RenderQueueID queue, const GeometryBuffer &buffer)
	Add the specified GeometryBuffer to the specified queue for rendering when the RenderingSurface is drawn. More...

void	removeGeometryBuffer (const RenderQueueID queue, const GeometryBuffer &buffer)
	Remove the specified GeometryBuffer from the specified queue. More...

void	clearGeometry (const RenderQueueID queue)
	Clears all GeometryBuffers from the specified rendering queue. More...

void	clearGeometry ()
	Clears all GeometryBuffers from all rendering queues. More...

bool	isInvalidated () const
	Return whether this RenderingSurface is invalidated. More...

virtual RenderingWindow &	createRenderingWindow (TextureTarget &target)
	Create and return a reference to a child RenderingWindow object that will render back onto this RenderingSurface when it's draw member function is called. More...

virtual void	destroyRenderingWindow (RenderingWindow &window)
	Destroy a RenderingWindow we own. If we are not the present owner of the given RenderingWindow, nothing happens. More...

virtual void	transferRenderingWindow (RenderingWindow &window)
	transfer ownership of the RenderingWindow to this RenderingSurface. More...

const RenderTarget &	getRenderTarget () const
	Return the RenderTarget object that this RenderingSurface is drawing to. More...

RenderTarget &	getRenderTarget ()

Public Member Functions inherited from CEGUI::EventSet
	EventSet ()
	Constructor for EventSet objects.

virtual	~EventSet (void)
	Destructor for EventSet objects.

void	addEvent (const String &name)
	Add a new Event to the EventSet with the given name. More...

void	removeEvent (const String &name)
	Removes the Event with the given name. All connections to the event are disconnected. More...

void	removeAllEvents (void)
	Remove all Event objects from the EventSet. More...

bool	isEventPresent (const String &name)
	Checks to see if an Event with the given name is present in the EventSet. More...

virtual Event::Connection	subscribeEvent (const String &name, Event::Subscriber subscriber)
	Subscribes a handler to the named Event. If the named Event is not yet present in the EventSet, it is created and added. More...

virtual Event::Connection	subscribeEvent (const String &name, Event::Group group, Event::Subscriber subscriber)
	Subscribes a handler to the specified group of the named Event. If the named Event is not yet present in the EventSet, it is created and added. More...

virtual Event::Connection	subscribeScriptedEvent (const String &name, const String &subscriber_name)
	Subscribes the named Event to a scripted funtion. More...

virtual Event::Connection	subscribeScriptedEvent (const String &name, Event::Group group, const String &subscriber_name)
	Subscribes the specified group of the named Event to a scripted funtion. More...

virtual void	fireEvent (const String &name, EventArgs &args, const String &eventNamespace="")
	Fires the named event passing the given EventArgs object. More...

bool	isMuted (void) const
	Return whether the EventSet is muted or not. More...

void	setMutedState (bool setting)
	Set the mute state for this EventSet. More...

Iterator	getIterator (void) const
	Return a EventSet::Iterator object to iterate over the events currently added to the EventSet.

Protected Member Functions
virtual void	realiseGeometry_impl ()
	default generates geometry to draw window as a single quad.

void	setOwner (RenderingSurface &owner)
	set a new owner for this RenderingWindow object

Protected Member Functions inherited from CEGUI::RenderingSurface
void	draw (const RenderQueue &queue, RenderQueueEventArgs &args)
	draw a rendering queue, firing events before and after.

void	detatchWindow (RenderingWindow &w)
	detatch ReneringWindow from this RenderingSurface

void	attachWindow (RenderingWindow &w)
	attach ReneringWindow from this RenderingSurface

Protected Member Functions inherited from CEGUI::EventSet
Event *	getEventObject (const String &name, bool autoAdd=false)
	Return a pointer to the Event object with the given name, optionally adding such an Event object to the EventSet if it does not already exist. More...

void	fireEvent_impl (const String &name, EventArgs &args)
	Implementation event firing member.

	EventSet (EventSet &)

EventSet &	operator= (EventSet &)

Protected Attributes
Renderer &	d_renderer
	holds ref to renderer

TextureTarget &	d_textarget
	TextureTarget to draw to. Like d_target in base, but avoiding downcasts.

RenderingSurface *	d_owner
	RenderingSurface that owns this object, we render back to this object.

GeometryBuffer *	d_geometry
	GeometryBuffer that holds geometry for drawing this window.

bool	d_geometryValid
	indicates whether data in GeometryBuffer is up-to-date

Vector2	d_position
	Position of this RenderingWindow.

Size	d_size
	Size of this RenderingWindow.

Vector3	d_rotation
	Rotaions for this RenderingWindow.

Vector3	d_pivot
	Pivot point used for the rotation.

Protected Attributes inherited from CEGUI::RenderingSurface
RenderQueueList	d_queues
	the collection of RenderQueue objects.

RenderingWindowList	d_windows
	collection of RenderingWindow object we own

RenderTarget &	d_target
	RenderTarget that this surface actually draws to.

bool	d_invalidated
	holds invalidated state of target (as far as we are concerned)

Protected Attributes inherited from CEGUI::EventSet
EventMap	d_events

bool	d_muted
	true if events for this EventSet have been muted.

Friends
void	RenderingSurface::transferRenderingWindow (RenderingWindow &)

Additional Inherited Members
Public Types inherited from CEGUI::EventSet
typedef ConstBaseIterator < EventMap >	Iterator

Static Public Attributes inherited from CEGUI::RenderingSurface
static const String	EventNamespace
	Namespace for global events from RenderingSurface objects.

static const String	EventRenderQueueStarted

static const String	EventRenderQueueEnded

Protected Types inherited from CEGUI::RenderingSurface
typedef std::map < RenderQueueID, RenderQueue >	RenderQueueList
	collection type for the queues

typedef std::vector < RenderingWindow * >	RenderingWindowList
	collection type for created RenderingWindow objects

Detailed Description

RenderingWindow is a RenderingSurface that can be "drawn back" onto another RenderingSurface and is primarily intended to be used as a kind of cache for rendered imagery.

Constructor & Destructor Documentation

CEGUI::RenderingWindow::RenderingWindow	(	TextureTarget &	target,
		RenderingSurface &	owner
	)

Constructor for RenderingWindow objects.

Parameters

target	The TextureTarget based object that will be used as the target for content rendering done by the RenderingWindow.
owner	The RenderingSurface object that will be our initial owner. This RenderingSurface is also the target where our cached imagery will be rendered back to.

Note: The TextureTarget target remains under it's original ownership, and the RenderingSurface owner actually owns this object.

Member Function Documentation

void CEGUI::RenderingWindow::draw ( )

virtual

Draw the GeometryBuffers for all rendering queues to the RenderTarget that this RenderingSurface is targetting.

The GeometryBuffers remain in the rendering queues after the draw operation is complete. This allows the next draw operation to occur without needing to requeue all the GeometryBuffers (if for instance the sequence of buffers to be drawn remains unchanged).

Reimplemented from CEGUI::RenderingSurface.

const RenderingSurface& CEGUI::RenderingWindow::getOwner ( ) const

Return the RenderingSurface that owns the RenderingWindow. This is also the RenderingSurface that will be used when the RenderingWindow renders back it's cached imagery content.

Returns: RenderingSurface object that owns, and is targetted by, the RenderingWindow.

const Vector3& CEGUI::RenderingWindow::getPivot ( ) const

Return the rotation pivot point location for the RenderingWindow.

Returns: Vector3 object describing the current location of the pivot point used when rotating the RenderingWindow.

const Vector2& CEGUI::RenderingWindow::getPosition ( ) const

Return the current pixel position of the RenderingWindow. The origin is at the top-left corner.

Returns: Vector2 object describing the pixel position of the RenderingWindow.

Note: This position is an absolute pixel location relative to the screen or other root surface. It is not relative to the owner of the RenderingWindow.

RenderEffect* CEGUI::RenderingWindow::getRenderEffect ( )

Return a pointer to the RenderEffect currently being used with the RenderingWindow. A return value of 0 indicates that no RenderEffect is being used.

Returns: Pointer to the RenderEffect used with this RenderingWindow, or 0 for none.

const Vector3& CEGUI::RenderingWindow::getRotation ( ) const

Return the current rotations being applied to the RenderingWindow, in degrees.

Returns: Vector3 object describing the rotations for the RenderingWindow.

const Size& CEGUI::RenderingWindow::getSize ( ) const

Return the current size of the RenderingWindow in pixels.

Returns: Size object describing the current pixel size of the RenderingWindow.

const TextureTarget& CEGUI::RenderingWindow::getTextureTarget ( ) const

Return the TextureTarget object that is the target for content rendered to this RenderingWindows. This is the same object passed into the constructor.

Returns: The TextureTarget object that receives the rendered output resulting from geometry queued to this RenderingWindow.

void CEGUI::RenderingWindow::invalidate ( )

virtual

Marks the RenderingSurface as invalid, causing the geometry to be rerendered to the RenderTarget next time draw is called.

Note that some surface types can never be in a 'valid' state and so rerendering occurs whenever draw is called. This function mainly exists as a means to hint to other surface types - those that physically cache the rendered output - that geometry content has changed and the cached imagery should be cleared and redrawn.

Reimplemented from CEGUI::RenderingSurface.

void CEGUI::RenderingWindow::invalidateGeometry ( )

Mark the geometry used when rendering the RenderingWindow back to it's owning RenderingSurface as invalid so that it gets regenerated on the next rendering pass.

This is separate from the main invalidate() function because in most cases invalidating the cached imagery will not require the potentially expensive regeneration of the geometry for the RenderingWindow itself.

bool CEGUI::RenderingWindow::isRenderingWindow ( ) const

virtual

Return whether this RenderingSurface is actually an instance of the RenderingWindow subclass.

Returns

true to indicate the RenderingSurface is a RenderingWindow instance.
false to indicate the RenderingSurface is not a RenderingWindow.

Reimplemented from CEGUI::RenderingSurface.

void CEGUI::RenderingWindow::realiseGeometry ( )

generate geometry to be used when rendering back the RenderingWindow to it's owning RenderingSurface.

Note: In normal usage you should never have to call this directly. There may be certain cases where it might be useful to call this when using the RenderEffect system.

void CEGUI::RenderingWindow::setClippingRegion ( const Rect & region )

Set the clipping region that will be used when rendering the imagery for this RenderingWindow back onto the RenderingSurface that owns it.

Note: This is not the clipping region used when rendering the queued geometry onto the RenderingWindow, that still uses whatever regions are set on the queued GeometryBuffer objects.

Parameters

region Rect object describing a rectangular clipping region.

Note: The region should be described as absolute pixel locations relative to the screen or other root surface. The region should not be described relative to the owner of the RenderingWindow.

void CEGUI::RenderingWindow::setPivot ( const Vector3 & pivot )

Set the location of the pivot point around which the RenderingWindow will be rotated.

Parameters

pivot Vector3 describing the three dimensional point around which the RenderingWindow will be rotated.

void CEGUI::RenderingWindow::setPosition ( const Vector2 & position )

Set the two dimensional position of the RenderingWindow in pixels. The origin is at the top-left corner.

Parameters

position Vector2 object describing the desired location of the RenderingWindow, in pixels.

Note: This position is an absolute pixel location relative to the screen or other root surface. It is not relative to the owner of the RenderingWindow.

void CEGUI::RenderingWindow::setRenderEffect ( RenderEffect * effect )

Set the RenderEffect that should be used with the RenderingWindow. This may be 0 to remove a previously set RenderEffect.

Note: Ownership of the RenderEffect does not change; the RenderingWindow will not delete a RenderEffect assigned to it when the RenderingWindow is destroyed.

void CEGUI::RenderingWindow::setRotation ( const Vector3 & rotation )

Set the rotation factors to be used when rendering the RenderingWindow back onto it's owning RenderingSurface.

Parameters

rotation Vector3 object describing the rotaions to be used. Values are in degrees.

void CEGUI::RenderingWindow::setSize ( const Size & size )

Set the size of the RenderingWindow in pixels.

Parameters

size	Size object that describes the desired size of the RenderingWindow, in pixels.

void CEGUI::RenderingWindow::update ( const float elapsed )

Peform time based updated for the RenderingWindow.

Note: Currently this really only has meaning for RenderingWindow objects that have RenderEffect objects set. Though this may not always be the case.

Parameters

elapsed float value describing the number of seconds that have passed since the previous call to update.

Public Member Functions

Protected Member Functions

Protected Attributes

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation