gnash::SWF::ShapeRecord Class Reference

Holds information needed to draw a shape. More...

#include <ShapeRecord.h>

Public Types
typedef Subshape::FillStyles	FillStyles
typedef Subshape::LineStyles	LineStyles
typedef Subshape::Paths	Paths
typedef std::vector< Subshape >	Subshapes

Public Member Functions
	ShapeRecord ()
	Construct a ShapeRecord. More...
	ShapeRecord (SWFStream &in, SWF::TagType tag, movie_definition &m, const RunResources &r)
	Construct a ShapeRecord from a SWFStream. More...
	~ShapeRecord ()
void	read (SWFStream &in, SWF::TagType tag, movie_definition &m, const RunResources &r)
	Parse path data from a SWFStream. More...
const Subshapes &	subshapes () const
void	addSubshape (const Subshape &subshape)
const SWFRect &	getBounds () const
void	setLerp (const ShapeRecord &a, const ShapeRecord &b, const double ratio)
	Set to the lerp of two ShapeRecords. More...
void	clear ()
	Reset all shape data. More...
void	setBounds (const SWFRect &bounds)
bool	pointTest (std::int32_t x, std::int32_t y, const SWFMatrix &wm) const

Detailed Description

Holds information needed to draw a shape.

This does not correspond exactly to parsed record in a SWF file, but is used to create both mutable and immutable shapes. A ShapeRecord should have enough methods to implement the AS3 Graphics object (the drawing API of Shape and Sprite). This is restricted to adding fills, paths and line styles (which must be constructed outside this ShapeRecord before being added) and clearing everything. There is no support for removing single elements. ShapeRecord objects are not ref-counted, so they may be stack-allocated or used in smart pointers. A shape can have sub-shapes. This can happen when there are multiple layers of the same frame count. Flash combines them to one single shape. The problem with sub-shapes is, that outlines can be hidden by other layers so they must be rendered separately. In order to be sure outlines are show correctly, draw the subshapes contained in the ShapeRecord in sequence.

Member Typedef Documentation

FillStyles

typedef Subshape::FillStyles gnash::SWF::ShapeRecord::FillStyles

LineStyles

typedef Subshape::LineStyles gnash::SWF::ShapeRecord::LineStyles

Paths

typedef Subshape::Paths gnash::SWF::ShapeRecord::Paths

Subshapes

typedef std::vector<Subshape> gnash::SWF::ShapeRecord::Subshapes

Constructor & Destructor Documentation

ShapeRecord() [1/2]

gnash::SWF::ShapeRecord::ShapeRecord

(

)

Construct a ShapeRecord.

This should only really be used for DynamicShapes. Ideally all immutable ShapeRecords should be constructed with the ctor taking an SWFStream, but some tag formats do not allow this.

ShapeRecord() [2/2]

gnash::SWF::ShapeRecord::ShapeRecord	(	SWFStream &	in,
		SWF::TagType	tag,
		movie_definition &	m,
		const RunResources &	r
	)

Construct a ShapeRecord from a SWFStream.

This is useful for constructing immutable tags.

~ShapeRecord()

gnash::SWF::ShapeRecord::~ShapeRecord

(

)

Member Function Documentation

addSubshape()

void gnash::SWF::ShapeRecord::addSubshape ( const Subshape &  subshape )

inline

Referenced by gnash::DynamicShape::beginFill(), gnash::SWF::DefineMorphShapeTag::display(), gnash::DynamicShape::endFill(), and gnash::DynamicShape::finalize().

clear()

void gnash::SWF::ShapeRecord::clear

(

)

Reset all shape data.

Referenced by gnash::DynamicShape::clear().

getBounds()

const SWFRect& gnash::SWF::ShapeRecord::getBounds ( ) const

inline

Referenced by gnash::SWF::DefineShapeTag::bounds(), gnash::DynamicShape::curveTo(), gnash::renderer::openvg::Renderer_ovg::drawGlyph(), gnash::Renderer_cairo::drawGlyph(), gnash::MorphShape::getBounds(), gnash::DynamicShape::getBounds(), gnash::DynamicShape::lineTo(), gnash::SWF::operator<<(), and gnash::MorphShape::pointInShape().

pointTest()

bool gnash::SWF::ShapeRecord::pointTest ( std::int32_t  x, std::int32_t  y, const SWFMatrix &  wm  ) const

inline

References gnash::geometry::pointTest(), x, and y.

Referenced by gnash::MorphShape::pointInShape(), gnash::SWF::DefineShapeTag::pointTestLocal(), and gnash::DynamicShape::pointTestLocal().

read()

void gnash::SWF::ShapeRecord::read	(	SWFStream &	in,
		SWF::TagType	tag,
		movie_definition &	m,
		const RunResources &	r
	)

Parse path data from a SWFStream.

This is used by DefineMorphShapeTag as part of parsing its more complex ShapeRecords.

TODO: is this correct?

When reading font glyphs it happens to read 1 byte past end boundary of a glyph due to fill/line bits being zero.

Generally returning here seems to break morphs: http://savannah.gnu.org/bugs/?21747 And other normal shapes: http://savannah.gnu.org/bugs/?21923 http://savannah.gnu.org/bugs/?22000

So for now we only return if NOT reading a morph shape. Pretty ugly... till next bug report.

References gnash::SWF::Subshape::clear(), gnash::SWF::DEFINESHAPE, gnash::SWF::DEFINESHAPE2, gnash::SWF::DEFINESHAPE3, gnash::SWF::DEFINESHAPE4, and gnash::SWF::DEFINESHAPE4_.

Referenced by gnash::SWF::DefineMorphShapeTag::display().

setBounds()

void gnash::SWF::ShapeRecord::setBounds ( const SWFRect &  bounds )

inline

Referenced by gnash::DynamicShape::curveTo(), gnash::SWF::DefineMorphShapeTag::display(), gnash::DynamicShape::lineTo(), and gnash::DynamicShape::setBounds().

setLerp()

void gnash::SWF::ShapeRecord::setLerp	(	const ShapeRecord &	a,
		const ShapeRecord &	b,
		const double	ratio
	)

Set to the lerp of two ShapeRecords.

Used in shape morphing.

Referenced by gnash::MorphShape::getBounds().

subshapes()

const Subshapes& gnash::SWF::ShapeRecord::subshapes ( ) const

inline

Referenced by gnash::SWF::DefineMorphShapeTag::display(), gnash::Renderer_cairo::drawGlyph(), gnash::Renderer_cairo::drawShape(), and gnash::SWF::operator<<().

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

• ShapeRecord.h
• ShapeRecord.cpp