path-cairo.h File Reference

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Typedefs
typedef struct _cairo	cairo_t

Functions
void	cairo_curve (cairo_t *cr, Geom::Curve const &c)
void	cairo_rectangle (cairo_t *cr, Geom::Rect const &r)
void	cairo_convex_hull (cairo_t *cr, Geom::ConvexHull const &r)
void	cairo_path (cairo_t *cr, Geom::Path const &p)
void	cairo_path (cairo_t *cr, Geom::PathVector const &p)
void	cairo_path_stitches (cairo_t *cr, Geom::Path const &p)
void	cairo_path_stitches (cairo_t *cr, Geom::PathVector const &p)
void	cairo_d2_sb (cairo_t *cr, Geom::D2< Geom::SBasis > const &p)
void	cairo_d2_sb_handles (cairo_t *cr, Geom::D2< Geom::SBasis > const &p)
void	cairo_d2_sb2d (cairo_t *cr, Geom::D2< Geom::SBasis2d > const &sb2, Geom::Point dir, double width)
void	cairo_sb2d (cairo_t *cr, Geom::SBasis2d const &sb2, Geom::Point dir, double width)
void	cairo_d2_pw_sb (cairo_t *cr, Geom::D2< Geom::Piecewise< Geom::SBasis > > const &p)
void	cairo_pw_d2_sb (cairo_t *cr, Geom::Piecewise< Geom::D2< Geom::SBasis > > const &p)
void	draw_line (cairo_t *cr, const Geom::Line &l, const Geom::Rect &r)
void	draw_line (cairo_t *cr, Geom::Point n, double d, Geom::Rect r)
void	draw_line (cairo_t *cr, Geom::Point a, Geom::Point b, Geom::Rect r)
void	draw_line_seg (cairo_t *cr, Geom::Point a, Geom::Point b)
void	draw_line_seg_with_arrow (cairo_t *cr, Geom::Point a, Geom::Point b, double dangle=15 *M_PI/180, double radius=20)
void	draw_spot (cairo_t *cr, Geom::Point h)
void	draw_handle (cairo_t *cr, Geom::Point h)
void	draw_cross (cairo_t *cr, Geom::Point h)
void	draw_circ (cairo_t *cr, Geom::Point h)
void	draw_ray (cairo_t *cr, Geom::Point h, Geom::Point dir)
void	draw_ray (cairo_t *cr, const Geom::Ray &ray, const Geom::Rect &r)
void	draw_line_segment (cairo_t *cr, const Geom::LineSegment &ls, const Geom::Rect &r)
void	cairo_move_to (cairo_t *cr, Geom::Point p1)
void	cairo_line_to (cairo_t *cr, Geom::Point p1)
void	cairo_curve_to (cairo_t *cr, Geom::Point p1, Geom::Point p2, Geom::Point p3)
void	convertHSVtoRGB (const double H, const double S, const double V, double &R, double &G, double &B)

Typedef Documentation

cairo_t

typedef struct _cairo cairo_t

Definition at line 16 of file path-cairo.h.

Function Documentation

cairo_convex_hull()

void cairo_convex_hull	(	cairo_t *	cr,
		Geom::ConvexHull const &	r
	)

Definition at line 35 of file cairo-helpers.cpp.

References Geom::ConvexHull::back(), cairo_line_to(), cairo_move_to(), Geom::ConvexHull::empty(), and Geom::ConvexHull::size().

Referenced by fill_line_in_rect(), and py_cairo_convex_hull().

cairo_curve()

void cairo_curve	(	cairo_t *	cr,
		Geom::Curve const &	c
	)

Definition at line 43 of file cairo-helpers.cpp.

References Geom::Path::begin(), c, cairo_curve(), cairo_curve_to(), cairo_line_to(), Geom::cubicbezierpath_from_sbasis(), and Geom::Path::end().

Referenced by draw_ratquad(), and py_cairo_curve().

cairo_curve_to()

void cairo_curve_to	(	cairo_t *	cr,
		Geom::Point	p1,
		Geom::Point	p2,
		Geom::Point	p3
	)

Definition at line 24 of file cairo-helpers.cpp.

References cairo_curve_to().

Referenced by Inkscape::DrawingContext::curveTo(), Geom::CairoPathSink::curveTo(), feed_curve_to_cairo(), Geom::CairoPathSink::quadTo(), and wrap_path().

cairo_d2_pw_sb()

void cairo_d2_pw_sb	(	cairo_t *	cr,
		Geom::D2< Geom::Piecewise< Geom::SBasis > > const &	p
	)

Definition at line 127 of file cairo-helpers.cpp.

References cairo_pw_d2_sb(), and Geom::sectionize().

Referenced by plot(), plot(), plot_graph(), py_cairo_d2_pw_sb(), and smash_intersect().

cairo_d2_sb()

void cairo_d2_sb	(	cairo_t *	cr,
		Geom::D2< Geom::SBasis > const &	p
	)

Definition at line 123 of file cairo-helpers.cpp.

References cairo_path(), and Geom::path_from_sbasis().

Referenced by cairo_pw(), cairo_pw(), draw_axis(), plot(), plot(), plot(), plot(), plot3d(), plot3d(), py_cairo_d2_sb(), recursive_curvature_fitter(), sequential_curvature_fitter(), and smash_intersect().

cairo_d2_sb2d()

void cairo_d2_sb2d	(	cairo_t *	cr,
		Geom::D2< Geom::SBasis2d > const &	sb2,
		Geom::Point	dir,
		double	width
	)

Definition at line 113 of file path-cairo.cpp.

References cairo_d2_sb(), Geom::extract_u(), Geom::extract_v(), and width.

cairo_d2_sb_handles()

void cairo_d2_sb_handles	(	cairo_t *	cr,
		Geom::D2< Geom::SBasis > const &	p
	)

cairo_line_to()

void cairo_line_to	(	cairo_t *	cr,
		Geom::Point	p1
	)

Definition at line 19 of file cairo-helpers.cpp.

References cairo_line_to().

Referenced by Inkscape::UI::Widget::create_separator(), Toy::draw(), draw(), draw_box(), Inkscape::UI::Widget::draw_circle(), Inkscape::UI::Widget::ColorPreview::draw_func(), draw_hull(), draw_line(), draw_line_in_rect(), draw_rect(), draw_segment(), draw_slider_lines(), feed_curve_to_cairo(), feed_path_to_cairo(), Inkscape::DrawingContext::lineTo(), Geom::CairoPathSink::lineTo(), plot(), plot(), plot_bar(), plot_bar(), and wrap_path().

cairo_move_to()

void cairo_move_to	(	cairo_t *	cr,
		Geom::Point	p1
	)

Definition at line 14 of file cairo-helpers.cpp.

References cairo_move_to().

Referenced by cairo_horiz(), cairo_vert(), Inkscape::UI::Widget::create_separator(), Slider::draw(), Toy::draw(), draw(), draw_box(), draw_hull(), draw_line(), draw_line_in_rect(), draw_rect(), draw_segment(), draw_slider_lines(), Inkscape::UI::Widget::draw_text(), draw_text(), feed_curve_to_cairo(), feed_path_to_cairo(), feed_path_to_cairo(), Inkscape::DrawingContext::moveTo(), Geom::CairoPathSink::moveTo(), plot(), plot(), plot_bar(), plot_bar(), Inkscape::DrawingContext::revrectangle(), Inkscape::DrawingContext::revrectangle(), wrap_path(), and write_text().

cairo_path() [1/2]

void cairo_path	(	cairo_t *	cr,
		Geom::Path const &	p
	)

Definition at line 73 of file cairo-helpers.cpp.

References Geom::Path::begin(), cairo_curve(), cairo_line_to(), cairo_move_to(), Geom::Path::closed(), Geom::Path::end(), end, Geom::Path::finalPoint(), Geom::Path::initialPoint(), and Geom::Path::size().

Referenced by LPEToy::draw(), draw_cell(), plot(), py_cairo_path(), and py_cairo_path().

cairo_path() [2/2]

void cairo_path	(	cairo_t *	cr,
		Geom::PathVector const &	p
	)

Definition at line 108 of file cairo-helpers.cpp.

References Geom::PathVector::begin(), cairo_path(), and Geom::PathVector::end().

cairo_path_stitches() [1/2]

void cairo_path_stitches	(	cairo_t *	cr,
		Geom::Path const &	p
	)

Definition at line 90 of file cairo-helpers.cpp.

References Geom::Path::begin(), c, cairo_line_to(), cairo_move_to(), Geom::Path::end(), Geom::X, and Geom::Y.

Referenced by py_cairo_path_stitches(), and py_cairo_path_stitches().

cairo_path_stitches() [2/2]

void cairo_path_stitches	(	cairo_t *	cr,
		Geom::PathVector const &	p
	)

Definition at line 115 of file cairo-helpers.cpp.

References Geom::PathVector::begin(), cairo_path_stitches(), and Geom::PathVector::end().

cairo_pw_d2_sb()

void cairo_pw_d2_sb	(	cairo_t *	cr,
		Geom::Piecewise< Geom::D2< Geom::SBasis > > const &	p
	)

Definition at line 131 of file cairo-helpers.cpp.

References cairo_d2_sb().

Referenced by dot_plot(), and py_cairo_pw_d2_sb().

cairo_rectangle()

void cairo_rectangle	(	cairo_t *	cr,
		Geom::Rect const &	r
	)

Definition at line 31 of file cairo-helpers.cpp.

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

Referenced by Inkscape::Extension::Internal::CairoRenderContext::_finishSurfaceSetup(), Inkscape::Extension::Internal::CairoRenderContext::addClippingRect(), Toggle::draw(), RectHandle::draw(), draw_callback(), ink_cairo_pattern_create_checkerboard(), plot_bar(), Inkscape::Extension::Internal::CairoRenderContext::popLayer(), py_cairo_rectangle(), Inkscape::DrawingContext::rectangle(), Inkscape::DrawingContext::rectangle(), Inkscape::Filters::FilterFlood::render_cairo(), Inkscape::Extension::Internal::CairoRenderContext::renderImage(), and sp_gradstop_to_pixbuf_ref().

cairo_sb2d()

void cairo_sb2d	(	cairo_t *	cr,
		Geom::SBasis2d const &	sb2,
		Geom::Point	dir,
		double	width
	)

Definition at line 135 of file path-cairo.cpp.

References cairo_d2_sb(), Geom::extract_u(), Geom::extract_v(), and width.

convertHSVtoRGB()

void convertHSVtoRGB	(	const double	H,
		const double	S,
		const double	V,
		double &	R,
		double &	G,
		double &	B
	)

Definition at line 240 of file path-cairo.cpp.

References floor(), and R.

draw_circ()

void draw_circ	(	cairo_t *	cr,
		Geom::Point	h
	)

Definition at line 195 of file path-cairo.cpp.

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

Referenced by PointHandle::draw(), PointSetHandle::draw(), and RectHandle::draw().

draw_cross()

void draw_cross	(	cairo_t *	cr,
		Geom::Point	h
	)

Definition at line 186 of file path-cairo.cpp.

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

Referenced by create_bezier(), create_bezier_again(), create_bezier_along_curve(), mark_verts(), plot(), plot(), and plot3d().

draw_handle()

void draw_handle	(	cairo_t *	cr,
		Geom::Point	h
	)

Definition at line 177 of file path-cairo.cpp.

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

Referenced by Geom::CLIPPER_CLASS::clip(), Geom::CLIPPER_CLASS::pairing(), plot(), plot_offset(), proj_image(), recursive_curvature_fitter(), and sequential_curvature_fitter().

draw_line() [1/3]

void draw_line	(	cairo_t *	cr,
		const Geom::Line &	l,
		const Geom::Rect &	r
	)

Definition at line 268 of file path-cairo.cpp.

References Geom::Line::coefficients(), and draw_line().

draw_line() [2/3]

void draw_line	(	cairo_t *	cr,
		Geom::Point	a,
		Geom::Point	b,
		Geom::Rect	r
	)

draw_line() [3/3]

void draw_line	(	cairo_t *	cr,
		Geom::Point	n,
		double	d,
		Geom::Rect	r
	)

Definition at line 275 of file path-cairo.cpp.

References draw_line().

draw_line_seg()

void draw_line_seg	(	cairo_t *	cr,
		Geom::Point	a,
		Geom::Point	b
	)

Definition at line 167 of file path-cairo.cpp.

References cairo_line_to(), and cairo_move_to().

Referenced by dot_plot(), dot_plot(), dot_plot(), draw_bounds(), draw_line_segment(), draw_ray(), draw_ray(), draw_spot(), and Geom::CLIPPER_CLASS::pairing().

draw_line_seg_with_arrow()

void draw_line_seg_with_arrow	(	cairo_t *	cr,
		Geom::Point	a,
		Geom::Point	b,
		double	dangle = 15 *M_PI/180,
		double	radius = 20
	)

Definition at line 317 of file path-cairo.cpp.

References Geom::atan2(), cairo_line_to(), and cairo_move_to().

draw_line_segment()

void draw_line_segment	(	cairo_t *	cr,
		const Geom::LineSegment &	ls,
		const Geom::Rect &	r
	)

Definition at line 298 of file path-cairo.cpp.

References Geom::GenericRect< C >::contains(), draw_line(), draw_line_seg(), and draw_ray().

draw_ray() [1/2]

void draw_ray	(	cairo_t *	cr,
		const Geom::Ray &	ray,
		const Geom::Rect &	r
	)

Definition at line 280 of file path-cairo.cpp.

References Geom::GenericRect< C >::corner(), draw_line_seg(), Geom::intersection(), Geom::Ray::origin(), Geom::Ray::pointAt(), Geom::BezierCurve::setFinal(), and Geom::BezierCurve::setInitial().

draw_ray() [2/2]

void draw_ray	(	cairo_t *	cr,
		Geom::Point	h,
		Geom::Point	dir
	)

Definition at line 203 of file path-cairo.cpp.

References draw_line_seg(), Geom::rot90(), and Geom::unit_vector().

Referenced by draw_line_segment().

draw_spot()

void draw_spot	(	cairo_t *	cr,
		Geom::Point	h
	)

Definition at line 173 of file path-cairo.cpp.

References draw_line_seg().