Renders labels with Qt. More...

#include <vtkQtLabelRenderStrategy.h>

Inheritance diagram for vtkQtLabelRenderStrategy:

Collaboration diagram for vtkQtLabelRenderStrategy:

Public Types
typedef vtkLabelRenderStrategy	Superclass
Public Member Functions
void	PrintSelf (ostream &os, vtkIndent indent)
virtual int	IsA (const char *type)
vtkQtLabelRenderStrategy *	NewInstance () const
virtual void	StartFrame ()
virtual void	EndFrame ()
virtual void	ReleaseGraphicsResources (vtkWindow *window)

virtual void	ComputeLabelBounds (vtkTextProperty *tprop, vtkStdString label, double bds[4])
virtual void	ComputeLabelBounds (vtkTextProperty *tprop, vtkUnicodeString label, double bds[4])

virtual void	RenderLabel (int x[2], vtkTextProperty *tprop, vtkStdString label)
virtual void	RenderLabel (int x[2], vtkTextProperty *tprop, vtkStdString label, int maxWidth)
virtual void	RenderLabel (int x[2], vtkTextProperty *tprop, vtkUnicodeString label)
virtual void	RenderLabel (int x[2], vtkTextProperty *tprop, vtkUnicodeString label, int maxWidth)
Static Public Member Functions
static int	IsTypeOf (const char *type)
static vtkQtLabelRenderStrategy *	SafeDownCast (vtkObjectBase *o)
static vtkQtLabelRenderStrategy *	New ()
Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const
	vtkQtLabelRenderStrategy ()
	~vtkQtLabelRenderStrategy ()
Protected Attributes
Internals *	Implementation
vtkQImageToImageSource *	QImageToImage
vtkPlaneSource *	PlaneSource
vtkTextureMapToPlane *	TextureMapToPlane
vtkTexture *	Texture
vtkPolyDataMapper2D *	Mapper
vtkTexturedActor2D *	Actor
bool	AntialiasText

Detailed Description

Renders labels with Qt.

This class uses Qt to render labels and compute sizes. The labels are rendered to a QImage, then EndFrame() converts that image to a vtkImageData and textures the image onto a quad spanning the render area.

Examples:: vtkQtLabelRenderStrategy (Examples)

Tests:: vtkQtLabelRenderStrategy (Tests)

Definition at line 45 of file vtkQtLabelRenderStrategy.h.

Member Typedef Documentation

typedef vtkLabelRenderStrategy vtkQtLabelRenderStrategy::Superclass

Reimplemented from vtkLabelRenderStrategy.

Definition at line 49 of file vtkQtLabelRenderStrategy.h.

Constructor & Destructor Documentation

vtkQtLabelRenderStrategy::vtkQtLabelRenderStrategy ( ) [protected]

vtkQtLabelRenderStrategy::~vtkQtLabelRenderStrategy ( ) [protected]

Member Function Documentation

void vtkQtLabelRenderStrategy::PrintSelf	(	ostream &	os,
		vtkIndent	indent
	)		`[virtual]`

Methods invoked by print to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from vtkLabelRenderStrategy.

static int vtkQtLabelRenderStrategy::IsTypeOf ( const char * name ) [static]

Return 1 if this class type is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkLabelRenderStrategy.

virtual int vtkQtLabelRenderStrategy::IsA ( const char * name ) [virtual]

Return 1 if this class is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkLabelRenderStrategy.

static vtkQtLabelRenderStrategy* vtkQtLabelRenderStrategy::SafeDownCast ( vtkObjectBase * o ) [static]

Reimplemented from vtkLabelRenderStrategy.

virtual vtkObjectBase* vtkQtLabelRenderStrategy::NewInstanceInternal ( ) const [protected, virtual]

Reimplemented from vtkLabelRenderStrategy.

vtkQtLabelRenderStrategy* vtkQtLabelRenderStrategy::NewInstance ( ) const

Reimplemented from vtkLabelRenderStrategy.

static vtkQtLabelRenderStrategy* vtkQtLabelRenderStrategy::New ( ) [static]

Create an object with Debug turned off, modified time initialized to zero, and reference counting on.

Reimplemented from vtkObject.

virtual void vtkQtLabelRenderStrategy::ComputeLabelBounds	(	vtkTextProperty *	tprop,
		vtkStdString	label,
		double	bds[4]
	)		`[inline, virtual]`

Compute the bounds of a label. Must be performed after the renderer is set.

Reimplemented from vtkLabelRenderStrategy.

Definition at line 55 of file vtkQtLabelRenderStrategy.h.

virtual void vtkQtLabelRenderStrategy::ComputeLabelBounds	(	vtkTextProperty *	tprop,
		vtkUnicodeString	label,
		double	bds[4]
	)		`[virtual]`

Compute the bounds of a label. Must be performed after the renderer is set.

Implements vtkLabelRenderStrategy.

virtual void vtkQtLabelRenderStrategy::RenderLabel	(	int	x[2],
		vtkTextProperty *	tprop,
		vtkStdString	label
	)		`[inline, virtual]`

Render a label at a location in world coordinates. Must be performed between StartFrame() and EndFrame() calls.

Reimplemented from vtkLabelRenderStrategy.

Definition at line 65 of file vtkQtLabelRenderStrategy.h.

virtual void vtkQtLabelRenderStrategy::RenderLabel	(	int	x[2],
		vtkTextProperty *	tprop,
		vtkStdString	label,
		int	maxWidth
	)		`[inline, virtual]`

Render a label at a location in world coordinates. Must be performed between StartFrame() and EndFrame() calls.

Reimplemented from vtkLabelRenderStrategy.

Definition at line 67 of file vtkQtLabelRenderStrategy.h.

virtual void vtkQtLabelRenderStrategy::RenderLabel	(	int	x[2],
		vtkTextProperty *	tprop,
		vtkUnicodeString	label
	)		`[virtual]`

Render a label at a location in world coordinates. Must be performed between StartFrame() and EndFrame() calls.

Implements vtkLabelRenderStrategy.

virtual void vtkQtLabelRenderStrategy::RenderLabel	(	int	x[2],
		vtkTextProperty *	tprop,
		vtkUnicodeString	label,
		int	maxWidth
	)		`[virtual]`

Render a label at a location in world coordinates. Must be performed between StartFrame() and EndFrame() calls.

virtual void vtkQtLabelRenderStrategy::StartFrame ( ) [virtual]

Start a rendering frame. Renderer must be set.

Reimplemented from vtkLabelRenderStrategy.

virtual void vtkQtLabelRenderStrategy::EndFrame ( ) [virtual]

End a rendering frame.

Reimplemented from vtkLabelRenderStrategy.

virtual void vtkQtLabelRenderStrategy::ReleaseGraphicsResources ( vtkWindow * window ) [virtual]

Release any graphics resources that are being consumed by this strategy. The parameter window could be used to determine which graphic resources to release.

Reimplemented from vtkLabelRenderStrategy.