makVrv::DtWidgetPicker Class Reference

The picker class which allocates and does picking operatings on widgets. More...

Classes
struct	MousePickRecord

Public Types
enum	MousePickType {   NO_EVENT = 0, LEFT_MOUSE_PRESS, LEFT_MOUSE_RELEASE, LEFT_MOUSE_DOUBLECLICK,   MIDDLE_MOUSE_PRESS, MIDDLE_MOUSE_RELEASE, MIDDLE_MOUSE_DOUBLECLICK, RIGHT_MOUSE_PRESS,   RIGHT_MOUSE_RELEASE, RIGHT_MOUSE_DOUBLECLICK, MOUSE_MOVE, MOUSE_WHEEL }

Public Member Functions
	DtWidgetPicker (DtOverlayResourceProvider &provider)
	~DtWidgetPicker ()
unsigned int	numberOfWidgets () const
	Get the number of widgets.
void	releaseResources ()
	Deallocate any resources.
DtPickableQuad *	allocatePickableQuad ()
	Allocate a widget quad, delete when done.
DtPickableTriangle *	allocatePickableTriangle ()
	Allocate a widget quad, delete when done.
DtPickableLine *	allocatePickableLine ()
	Allocate a widget quad, delete when done.
void	pick (const MousePickRecord &rec, int w, int h, bool geocentric, double cameraPosition[3]=0, double cameraMatrix[16]=0)
	Pick at (int x, int y); As picking can be slow, start your pick, after updates but before rendering.
const DtPickableWidget *	findWidgetFromLastPick () const
	Attempt to get the widget from the last pick.
bool	signalEvents ()
	Done during the update phase.
void	clearEvents ()
	Clear any pending events.

Public Attributes
boost::signal< void()>	signal_destroyed
	Boost signal sent during widget picker destruction. Called from destructor.

Protected Types
typedef boost::unordered_map < unsigned int, DtPickableWidget * >	WidgetIdMap

Protected Member Functions
DtPickableWidget *	calculateWidgetFromLastPick ()
	Get the widget at last pick.
void	debugRender ()
DtQuad *	allocateQuad ()
	Allocate a widget quad, delete when done.
DtLineSegment *	allocateLine ()
	Allocate a widget quad, delete when done.
DtTriangleProxy *	allocateTriangle ()
	Allocate a triangle.
unsigned int	widgetCreated (DtPickableWidget *)
	Called when a widget is created.
void	widgetToBeDeleted (DtPickableWidget *)
	Called when a widget is to be deleted.
bool	allocateResources ()

Protected Attributes
DtOverlayResourceProvider &	myProvider
DtFrameBufferObject *	myFrameBuffer
DtPixelBufferObject *	myPixelBuffer
DtTextureObject *	mySampleTexture
DtQuadRenderer *	myQuadRenderer
DtLineRenderer *	myLineRenderer
DtTriangleRenderer *	myTriangleRenderer
int	myDesiredWidth
int	myDesiredHeight
bool	myPendingEventFlag
MousePickRecord	myPendingEvent
DtPickableWidget *	myMouseFocusWidget
WidgetIdMap	myWidgetIds
unsigned int	myFreeId

Friends
class	DtPickableWidget
class	DtPickableQuad
class	DtPickableLine
class	DtPickableTriangle

Detailed Description

The picker class which allocates and does picking operatings on widgets.

Member Typedef Documentation

typedef boost::unordered_map<unsigned int, DtPickableWidget*> makVrv::DtWidgetPicker::WidgetIdMap

protected

Member Enumeration Documentation

enum makVrv::DtWidgetPicker::MousePickType

Enumerator:

NO_EVENT
LEFT_MOUSE_PRESS
LEFT_MOUSE_RELEASE
LEFT_MOUSE_DOUBLECLICK
MIDDLE_MOUSE_PRESS
MIDDLE_MOUSE_RELEASE
MIDDLE_MOUSE_DOUBLECLICK
RIGHT_MOUSE_PRESS
RIGHT_MOUSE_RELEASE
RIGHT_MOUSE_DOUBLECLICK
MOUSE_MOVE
MOUSE_WHEEL

Constructor & Destructor Documentation

makVrv::DtWidgetPicker::DtWidgetPicker

(

DtOverlayResourceProvider &

provider

)

makVrv::DtWidgetPicker::~DtWidgetPicker

(

)

Member Function Documentation

unsigned int makVrv::DtWidgetPicker::numberOfWidgets

(

)

const

Get the number of widgets.

void makVrv::DtWidgetPicker::releaseResources

(

)

Deallocate any resources.

DtPickableQuad* makVrv::DtWidgetPicker::allocatePickableQuad

(

)

Allocate a widget quad, delete when done.

DtPickableTriangle* makVrv::DtWidgetPicker::allocatePickableTriangle

(

)

Allocate a widget quad, delete when done.

DtPickableLine* makVrv::DtWidgetPicker::allocatePickableLine

(

)

Allocate a widget quad, delete when done.

void makVrv::DtWidgetPicker::pick	(	const MousePickRecord &	rec,
		int	w,
		int	h,
		bool	geocentric,
		double	cameraPosition[3] = 0,
		double	cameraMatrix[16] = 0
	)

Pick at (int x, int y); As picking can be slow, start your pick, after updates but before rendering.

const DtPickableWidget* makVrv::DtWidgetPicker::findWidgetFromLastPick

(

)

const

Attempt to get the widget from the last pick.

bool makVrv::DtWidgetPicker::signalEvents

(

)

Done during the update phase.

void makVrv::DtWidgetPicker::clearEvents

(

)

Clear any pending events.

DtPickableWidget* makVrv::DtWidgetPicker::calculateWidgetFromLastPick ( )

protected

Get the widget at last pick.

After rendering process the last pick.

void makVrv::DtWidgetPicker::debugRender ( )

protected

DtQuad* makVrv::DtWidgetPicker::allocateQuad ( )

protected

Allocate a widget quad, delete when done.

DtLineSegment* makVrv::DtWidgetPicker::allocateLine ( )

protected

Allocate a widget quad, delete when done.

DtTriangleProxy* makVrv::DtWidgetPicker::allocateTriangle ( )

protected

Allocate a triangle.

unsigned int makVrv::DtWidgetPicker::widgetCreated ( DtPickableWidget *  )

protected

Called when a widget is created.

void makVrv::DtWidgetPicker::widgetToBeDeleted ( DtPickableWidget *  )

protected

Called when a widget is to be deleted.

bool makVrv::DtWidgetPicker::allocateResources ( )

protected

Friends And Related Function Documentation

friend class DtPickableWidget

friend

friend class DtPickableQuad

friend

friend class DtPickableLine

friend

friend class DtPickableTriangle

friend

Member Data Documentation

boost::signal<void ()> makVrv::DtWidgetPicker::signal_destroyed

Boost signal sent during widget picker destruction. Called from destructor.

DtOverlayResourceProvider& makVrv::DtWidgetPicker::myProvider

protected

DtFrameBufferObject* makVrv::DtWidgetPicker::myFrameBuffer

protected

DtPixelBufferObject* makVrv::DtWidgetPicker::myPixelBuffer

protected

DtTextureObject* makVrv::DtWidgetPicker::mySampleTexture

protected

DtQuadRenderer* makVrv::DtWidgetPicker::myQuadRenderer

protected

DtLineRenderer* makVrv::DtWidgetPicker::myLineRenderer

protected

DtTriangleRenderer* makVrv::DtWidgetPicker::myTriangleRenderer

protected

int makVrv::DtWidgetPicker::myDesiredWidth

protected

int makVrv::DtWidgetPicker::myDesiredHeight

protected

bool makVrv::DtWidgetPicker::myPendingEventFlag

protected

MousePickRecord makVrv::DtWidgetPicker::myPendingEvent

protected

DtPickableWidget* makVrv::DtWidgetPicker::myMouseFocusWidget

protected

WidgetIdMap makVrv::DtWidgetPicker::myWidgetIds

protected

unsigned int makVrv::DtWidgetPicker::myFreeId

protected

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The documentation for this class was generated from the following file:

• include/vrvGraphics/DtWidgetPicker.h