Inkscape::DrawingContext Class Reference

Minimal wrapper over Cairo. More...

#include <drawing-context.h>

Inheritance diagram for Inkscape::DrawingContext:

Classes
class	Save
	RAII idiom for saving the state of DrawingContext. More...

Public Member Functions
	DrawingContext (cairo_t *ct, Geom::Point const &origin)
	DrawingContext (cairo_surface_t *surface, Geom::Point const &origin)
	DrawingContext (DrawingSurface &s)
	~DrawingContext ()
void	save ()
void	restore ()
void	pushGroup ()
void	pushAlphaGroup ()
void	popGroupToSource ()
void	transform (Geom::Affine const &trans)
void	translate (Geom::Point const &t)
void	translate (double dx, double dy)
void	scale (Geom::Scale const &s)
void	scale (double sx, double sy)
void	device_to_user_distance (double &dx, double &dy)
void	user_to_device_distance (double &dx, double &dy)
void	moveTo (Geom::Point const &p)
void	lineTo (Geom::Point const &p)
void	curveTo (Geom::Point const &p1, Geom::Point const &p2, Geom::Point const &p3)
void	arc (Geom::Point const &center, double radius, Geom::AngleInterval const &angle)
void	closePath ()
void	rectangle (Geom::Rect const &r)
void	rectangle (Geom::IntRect const &r)
void	revrectangle (Geom::Rect const &r)
void	revrectangle (Geom::IntRect const &r)
void	newPath ()
void	newSubpath ()
void	path (Geom::PathVector const &pv)
void	paint (double alpha=1.0)
void	fill ()
void	fillPreserve ()
void	stroke ()
void	strokePreserve ()
void	clip ()
void	setLineWidth (double w)
void	setHairline ()
void	setLineCap (cairo_line_cap_t cap)
void	setLineJoin (cairo_line_join_t join)
void	setMiterLimit (double miter)
void	setFillRule (cairo_fill_rule_t rule)
void	setOperator (cairo_operator_t op)
cairo_operator_t	getOperator ()
void	setTolerance (double tol)
void	setSource (cairo_pattern_t *source)
void	setSource (cairo_surface_t *surface, double x, double y)
void	setSource (double r, double g, double b, double a=1.0)
void	setSource (guint32 rgba)
void	setSource (DrawingSurface *s)
void	patternSetFilter (cairo_filter_t filter)
void	patternSetExtend (cairo_extend_t extend)
Geom::Rect	targetLogicalBounds () const
cairo_t *	raw ()
cairo_surface_t *	rawTarget ()
DrawingSurface *	surface ()

Private Member Functions
	DrawingContext (cairo_t *ct, DrawingSurface *surface, bool destroy)

Private Attributes
cairo_t *	_ct
DrawingSurface *	_surface
bool	_delete_surface
bool	_restore_context

Friends
class	DrawingSurface

Detailed Description

Minimal wrapper over Cairo.

This is a wrapper over cairo_t, extended with operations that work with 2Geom geometrical primitives. Some of this is probably duplicated in cairo-render-context.cpp, which provides higher level operations for drawing entire SPObjects when exporting.

Definition at line 27 of file drawing-context.h.

Constructor & Destructor Documentation

DrawingContext() [1/4]

Inkscape::DrawingContext::DrawingContext	(	cairo_t *	ct,
		Geom::Point const &	origin
	)

Definition at line 62 of file drawing-context.cpp.

References _ct, Inkscape::DrawingSurface::_has_context, _surface, origin, Geom::X, and Geom::Y.

DrawingContext() [2/4]

Inkscape::DrawingContext::DrawingContext	(	cairo_surface_t *	surface,
		Geom::Point const &	origin
	)

Definition at line 75 of file drawing-context.cpp.

References _ct, Inkscape::DrawingSurface::_has_context, _surface, and Inkscape::DrawingSurface::createRawContext().

DrawingContext() [3/4]

Inkscape::DrawingContext::DrawingContext

(

DrawingSurface &

s

)

Definition at line 85 of file drawing-context.cpp.

~DrawingContext()

Inkscape::DrawingContext::~DrawingContext

(

)

Definition at line 92 of file drawing-context.cpp.

References _ct, _delete_surface, Inkscape::DrawingSurface::_has_context, _restore_context, and _surface.

DrawingContext() [4/4]

Inkscape::DrawingContext::DrawingContext ( cairo_t *  ct, DrawingSurface *  surface, bool  destroy  )

private

Member Function Documentation

arc()

void Inkscape::DrawingContext::arc	(	Geom::Point const &	center,
		double	radius,
		Geom::AngleInterval const &	angle
	)

Definition at line 104 of file drawing-context.cpp.

References _ct.

clip()

void Inkscape::DrawingContext::clip ( )

inline

Definition at line 97 of file drawing-context.h.

References _ct.

Referenced by Inkscape::DrawingImage::_renderItem(), Inkscape::Drawing::render(), and Inkscape::DrawingPattern::renderPattern().

closePath()

void Inkscape::DrawingContext::closePath ( )

inline

Definition at line 66 of file drawing-context.h.

References _ct.

Referenced by Inkscape::DrawingText::decorateStyle().

curveTo()

void Inkscape::DrawingContext::curveTo ( Geom::Point const &  p1, Geom::Point const &  p2, Geom::Point const &  p3  )

inline

Definition at line 62 of file drawing-context.h.

References _ct, cairo_curve_to(), Geom::X, and Geom::Y.

device_to_user_distance()

void Inkscape::DrawingContext::device_to_user_distance ( double &  dx, double &  dy  )

inline

Definition at line 57 of file drawing-context.h.

References _ct.

Referenced by Inkscape::DrawingShape::_renderItem(), Inkscape::DrawingText::_renderItem(), and Inkscape::DrawingShape::_renderStroke().

fill()

void Inkscape::DrawingContext::fill ( )

inline

Definition at line 93 of file drawing-context.h.

References _ct.

Referenced by Inkscape::DrawingShape::_clipItem(), Inkscape::DrawingText::_clipItem(), Inkscape::DrawingCache::_dumpCache(), Inkscape::DrawingText::_renderItem(), Inkscape::DrawingCache::paintFromCache(), and Inkscape::DrawingItem::render().

fillPreserve()

void Inkscape::DrawingContext::fillPreserve ( )

inline

Definition at line 94 of file drawing-context.h.

References _ct.

Referenced by Inkscape::DrawingShape::_renderFill(), Inkscape::DrawingShape::_renderItem(), and Inkscape::DrawingText::_renderItem().

getOperator()

cairo_operator_t Inkscape::DrawingContext::getOperator ( )

inline

Definition at line 106 of file drawing-context.h.

References _ct.

lineTo()

void Inkscape::DrawingContext::lineTo ( Geom::Point const &  p )

inline

Definition at line 61 of file drawing-context.h.

References _ct, cairo_line_to(), Geom::X, and Geom::Y.

Referenced by Inkscape::DrawingImage::_renderItem(), and Inkscape::DrawingText::decorateStyle().

moveTo()

void Inkscape::DrawingContext::moveTo ( Geom::Point const &  p )

inline

Definition at line 60 of file drawing-context.h.

References _ct, cairo_move_to(), Geom::X, and Geom::Y.

Referenced by Inkscape::DrawingImage::_renderItem(), and Inkscape::DrawingText::decorateStyle().

newPath()

void Inkscape::DrawingContext::newPath ( )

inline

Definition at line 88 of file drawing-context.h.

References _ct.

Referenced by Inkscape::DrawingShape::_renderFill(), Inkscape::DrawingImage::_renderItem(), Inkscape::DrawingShape::_renderItem(), Inkscape::DrawingText::_renderItem(), and Inkscape::DrawingShape::_renderStroke().

newSubpath()

void Inkscape::DrawingContext::newSubpath ( )

inline

Definition at line 89 of file drawing-context.h.

References _ct.

paint()

void Inkscape::DrawingContext::paint

(

double

alpha = 1.0

)

Definition at line 124 of file drawing-context.cpp.

References _ct.

Referenced by Inkscape::DrawingImage::_renderItem(), Inkscape::DrawingText::_renderItem(), Inkscape::DrawingItem::clip(), Inkscape::DrawingItem::render(), Inkscape::Filters::Filter::render(), render_surface(), Inkscape::DrawingPattern::renderPattern(), sp_export_get_rows(), and sp_generate_internal_bitmap().

path()

void Inkscape::DrawingContext::path

(

Geom::PathVector const &

pv

)

Definition at line 120 of file drawing-context.cpp.

References _ct, and feed_pathvector_to_cairo().

Referenced by Inkscape::DrawingShape::_clipItem(), Inkscape::DrawingText::_clipItem(), Inkscape::DrawingShape::_renderFill(), Inkscape::DrawingShape::_renderItem(), Inkscape::DrawingText::_renderItem(), Inkscape::DrawingShape::_renderStroke(), and Inkscape::Drawing::render().

patternSetExtend()

void Inkscape::DrawingContext::patternSetExtend ( cairo_extend_t  extend )

inline

Definition at line 121 of file drawing-context.h.

References _ct.

Referenced by Inkscape::DrawingImage::_renderItem().

patternSetFilter()

void Inkscape::DrawingContext::patternSetFilter ( cairo_filter_t  filter )

inline

Definition at line 118 of file drawing-context.h.

References _ct.

Referenced by Inkscape::DrawingImage::_renderItem().

popGroupToSource()

void Inkscape::DrawingContext::popGroupToSource ( )

inline

Definition at line 50 of file drawing-context.h.

References _ct.

Referenced by Inkscape::DrawingImage::_renderItem(), Inkscape::DrawingItem::clip(), and Inkscape::DrawingItem::render().

pushAlphaGroup()

void Inkscape::DrawingContext::pushAlphaGroup ( )

inline

Definition at line 49 of file drawing-context.h.

References _ct.

pushGroup()

void Inkscape::DrawingContext::pushGroup ( )

inline

Definition at line 48 of file drawing-context.h.

References _ct.

Referenced by Inkscape::DrawingImage::_renderItem(), Inkscape::DrawingItem::clip(), and Inkscape::DrawingItem::render().

raw()

cairo_t * Inkscape::DrawingContext::raw ( )

inline

Definition at line 125 of file drawing-context.h.

References _ct.

Referenced by Inkscape::DrawingText::_renderItem(), Inkscape::apply_antialias(), Inkscape::NRStyle::applyStroke(), Inkscape::NRStyle::applyTextDecorationStroke(), and Inkscape::DrawingItem::render().

rawTarget()

cairo_surface_t * Inkscape::DrawingContext::rawTarget ( )

inline

Definition at line 126 of file drawing-context.h.

References _ct.

Referenced by Inkscape::DrawingImage::_renderItem(), and Inkscape::DrawingItem::render().

rectangle() [1/2]

void Inkscape::DrawingContext::rectangle ( Geom::IntRect const &  r )

inline

Definition at line 70 of file drawing-context.h.

References _ct, cairo_rectangle(), Geom::GenericRect< C >::height(), Geom::GenericRect< C >::left(), Geom::GenericRect< C >::top(), and Geom::GenericRect< C >::width().

rectangle() [2/2]

void Inkscape::DrawingContext::rectangle ( Geom::Rect const &  r )

inline

Definition at line 67 of file drawing-context.h.

References _ct, cairo_rectangle(), Geom::GenericRect< C >::height(), Geom::GenericRect< C >::left(), Geom::GenericRect< C >::top(), and Geom::GenericRect< C >::width().

Referenced by Inkscape::DrawingCache::_dumpCache(), Inkscape::DrawingImage::_renderItem(), Inkscape::DrawingText::_renderItem(), Inkscape::DrawingText::decorateStyle(), Inkscape::DrawingCache::paintFromCache(), Inkscape::DrawingItem::render(), and Inkscape::DrawingPattern::renderPattern().

restore()

void Inkscape::DrawingContext::restore ( )

inline

Definition at line 47 of file drawing-context.h.

References _ct.

Referenced by Inkscape::DrawingShape::_renderItem(), Inkscape::DrawingShape::_renderStroke(), Inkscape::Drawing::render(), render_surface(), and sp_generate_internal_bitmap().

revrectangle() [1/2]

void Inkscape::DrawingContext::revrectangle ( Geom::IntRect const &  r )

inline

Definition at line 81 of file drawing-context.h.

References _ct, cairo_move_to(), Geom::GenericRect< C >::height(), Geom::GenericRect< C >::left(), Geom::GenericRect< C >::top(), and Geom::GenericRect< C >::width().

revrectangle() [2/2]

void Inkscape::DrawingContext::revrectangle ( Geom::Rect const &  r )

inline

Definition at line 74 of file drawing-context.h.

References _ct, cairo_move_to(), Geom::GenericRect< C >::height(), Geom::GenericRect< C >::left(), Geom::GenericRect< C >::top(), and Geom::GenericRect< C >::width().

save()

void Inkscape::DrawingContext::save ( )

inline

Definition at line 46 of file drawing-context.h.

References _ct.

Referenced by Inkscape::DrawingShape::_renderItem(), Inkscape::DrawingShape::_renderStroke(), Inkscape::Drawing::render(), render_surface(), Inkscape::DrawingContext::Save::Save(), Inkscape::DrawingContext::Save::save(), and sp_generate_internal_bitmap().

scale() [1/2]

void Inkscape::DrawingContext::scale ( double  sx, double  sy  )

inline

Definition at line 56 of file drawing-context.h.

References _ct.

scale() [2/2]

void Inkscape::DrawingContext::scale ( Geom::Scale const &  s )

inline

Definition at line 55 of file drawing-context.h.

References _ct, Geom::X, and Geom::Y.

Referenced by Inkscape::DrawingImage::_renderItem(), Inkscape::DrawingText::_renderItem(), and Inkscape::Filters::FilterImage::render_cairo().

setFillRule()

void Inkscape::DrawingContext::setFillRule ( cairo_fill_rule_t  rule )

inline

Definition at line 104 of file drawing-context.h.

References _ct.

Referenced by Inkscape::DrawingShape::_clipItem(), Inkscape::DrawingText::_clipItem(), and Inkscape::NRStyle::applyFill().

setHairline()

void Inkscape::DrawingContext::setHairline

(

)

Definition at line 129 of file drawing-context.cpp.

References _ct, and ink_cairo_set_hairline().

Referenced by Inkscape::DrawingText::_renderItem(), Inkscape::DrawingShape::_renderStroke(), Inkscape::NRStyle::applyStroke(), and Inkscape::NRStyle::applyTextDecorationStroke().

setLineCap()

void Inkscape::DrawingContext::setLineCap ( cairo_line_cap_t  cap )

inline

Definition at line 101 of file drawing-context.h.

References _ct.

Referenced by Inkscape::NRStyle::applyStroke(), and Inkscape::NRStyle::applyTextDecorationStroke().

setLineJoin()

void Inkscape::DrawingContext::setLineJoin ( cairo_line_join_t  join )

inline

Definition at line 102 of file drawing-context.h.

References _ct, and Inkscape::join().

Referenced by Inkscape::NRStyle::applyStroke(), and Inkscape::NRStyle::applyTextDecorationStroke().

setLineWidth()

void Inkscape::DrawingContext::setLineWidth ( double  w )

inline

Definition at line 99 of file drawing-context.h.

References _ct, and w.

Referenced by Inkscape::DrawingImage::_renderItem(), Inkscape::DrawingShape::_renderItem(), Inkscape::DrawingText::_renderItem(), Inkscape::NRStyle::applyStroke(), and Inkscape::NRStyle::applyTextDecorationStroke().

setMiterLimit()

void Inkscape::DrawingContext::setMiterLimit ( double  miter )

inline

Definition at line 103 of file drawing-context.h.

References _ct.

Referenced by Inkscape::NRStyle::applyStroke(), and Inkscape::NRStyle::applyTextDecorationStroke().

setOperator()

void Inkscape::DrawingContext::setOperator ( cairo_operator_t  op )

inline

Definition at line 105 of file drawing-context.h.

References _ct.

Referenced by Inkscape::DrawingItem::clip(), Inkscape::DrawingItem::render(), Inkscape::Filters::Filter::render(), render_surface(), Inkscape::DrawingPattern::renderPattern(), sp_export_get_rows(), and sp_generate_internal_bitmap().

setSource() [1/5]

void Inkscape::DrawingContext::setSource ( cairo_pattern_t *  source )

inline

Definition at line 108 of file drawing-context.h.

References _ct.

Referenced by Inkscape::DrawingCache::_dumpCache(), Inkscape::DrawingImage::_renderItem(), Inkscape::DrawingShape::_renderItem(), Inkscape::DrawingText::_renderItem(), Inkscape::NRStyle::applyFill(), Inkscape::NRStyle::applyStroke(), Inkscape::NRStyle::applyTextDecorationFill(), Inkscape::NRStyle::applyTextDecorationStroke(), Inkscape::DrawingItem::clip(), Inkscape::DrawingCache::paintFromCache(), Inkscape::DrawingItem::render(), Inkscape::Filters::Filter::render(), render_surface(), Inkscape::DrawingPattern::renderPattern(), sp_export_get_rows(), and sp_generate_internal_bitmap().

setSource() [2/5]

void Inkscape::DrawingContext::setSource ( cairo_surface_t *  surface, double  x, double  y  )

inline

Definition at line 109 of file drawing-context.h.

References _ct, and surface().

setSource() [3/5]

void Inkscape::DrawingContext::setSource ( double  r, double  g, double  b, double  a = 1.0  )

inline

Definition at line 112 of file drawing-context.h.

References _ct, and cairo_set_source_rgba().

setSource() [4/5]

void Inkscape::DrawingContext::setSource

(

DrawingSurface *

s

)

Definition at line 136 of file drawing-context.cpp.

References _ct, origin, Inkscape::DrawingSurface::origin(), and Inkscape::DrawingSurface::raw().

setSource() [5/5]

void Inkscape::DrawingContext::setSource

(

guint32

rgba

)

Definition at line 133 of file drawing-context.cpp.

References _ct, and ink_cairo_set_source_rgba32().

setTolerance()

void Inkscape::DrawingContext::setTolerance ( double  tol )

inline

Definition at line 107 of file drawing-context.h.

References _ct.

Referenced by Inkscape::DrawingShape::_renderItem(), Inkscape::DrawingText::_renderItem(), and Inkscape::DrawingText::decorateItem().

stroke()

void Inkscape::DrawingContext::stroke ( )

inline

Definition at line 95 of file drawing-context.h.

References _ct.

Referenced by Inkscape::DrawingImage::_renderItem(), Inkscape::DrawingShape::_renderItem(), and Inkscape::DrawingText::_renderItem().

strokePreserve()

void Inkscape::DrawingContext::strokePreserve ( )

inline

Definition at line 96 of file drawing-context.h.

References _ct.

Referenced by Inkscape::DrawingShape::_renderItem(), Inkscape::DrawingText::_renderItem(), and Inkscape::DrawingShape::_renderStroke().

surface()

DrawingSurface * Inkscape::DrawingContext::surface ( )

inline

Definition at line 128 of file drawing-context.h.

References _surface.

Referenced by Inkscape::DrawingItem::render(), and setSource().

targetLogicalBounds()

Geom::Rect Inkscape::DrawingContext::targetLogicalBounds

(

)

const

Definition at line 141 of file drawing-context.cpp.

References _surface, and Inkscape::DrawingSurface::area().

Referenced by Inkscape::Filters::FilterSlot::FilterSlot(), and Inkscape::Filters::Filter::render().

transform()

void Inkscape::DrawingContext::transform

(

Geom::Affine const &

trans

)

Definition at line 116 of file drawing-context.cpp.

References _ct, and ink_cairo_transform().

Referenced by Inkscape::DrawingShape::_clipItem(), Inkscape::DrawingText::_clipItem(), Inkscape::DrawingShape::_renderFill(), Inkscape::DrawingImage::_renderItem(), Inkscape::DrawingShape::_renderItem(), Inkscape::DrawingText::_renderItem(), Inkscape::DrawingShape::_renderStroke(), Inkscape::Filters::FilterImage::render_cairo(), render_surface(), Inkscape::DrawingPattern::renderPattern(), and sp_generate_internal_bitmap().

translate() [1/2]

void Inkscape::DrawingContext::translate ( double  dx, double  dy  )

inline

Definition at line 54 of file drawing-context.h.

References _ct.

translate() [2/2]

void Inkscape::DrawingContext::translate ( Geom::Point const &  t )

inline

Definition at line 53 of file drawing-context.h.

References _ct, Geom::X, and Geom::Y.

Referenced by Inkscape::DrawingImage::_renderItem(), Inkscape::DrawingText::_renderItem(), Inkscape::Filters::FilterImage::render_cairo(), and Inkscape::DrawingPattern::renderPattern().

user_to_device_distance()

void Inkscape::DrawingContext::user_to_device_distance ( double &  dx, double &  dy  )

inline

Definition at line 58 of file drawing-context.h.

References _ct.

Friends And Related Symbol Documentation

DrawingSurface

friend class DrawingSurface

friend

Definition at line 138 of file drawing-context.h.

Member Data Documentation

_ct

cairo_t* Inkscape::DrawingContext::_ct

private

Definition at line 133 of file drawing-context.h.

Referenced by arc(), clip(), closePath(), curveTo(), device_to_user_distance(), DrawingContext(), DrawingContext(), fill(), fillPreserve(), getOperator(), lineTo(), moveTo(), newPath(), newSubpath(), paint(), path(), patternSetExtend(), patternSetFilter(), popGroupToSource(), pushAlphaGroup(), pushGroup(), raw(), rawTarget(), rectangle(), rectangle(), restore(), revrectangle(), revrectangle(), save(), scale(), scale(), setFillRule(), setHairline(), setLineCap(), setLineJoin(), setLineWidth(), setMiterLimit(), setOperator(), setSource(), setSource(), setSource(), setSource(), setSource(), setTolerance(), stroke(), strokePreserve(), transform(), translate(), translate(), user_to_device_distance(), and ~DrawingContext().

_delete_surface

bool Inkscape::DrawingContext::_delete_surface

private

Definition at line 135 of file drawing-context.h.

Referenced by ~DrawingContext().

_restore_context

bool Inkscape::DrawingContext::_restore_context

private

Definition at line 136 of file drawing-context.h.

Referenced by ~DrawingContext().

_surface

DrawingSurface* Inkscape::DrawingContext::_surface

private

Definition at line 134 of file drawing-context.h.

Referenced by DrawingContext(), DrawingContext(), surface(), targetLogicalBounds(), and ~DrawingContext().

---

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

• /builds/inkscape/inkscape/src/display/drawing-context.h
• /builds/inkscape/inkscape/src/display/drawing-context.cpp