#include <SVGItem.h>

Collaboration diagram for minsky::SVGRenderer:

Public Member Functions
	SVGRenderer ()

	SVGRenderer (const std::string &resource)

	SVGRenderer (const SVGRenderer &)=delete

void	operator= (const SVGRenderer &)=delete

	~SVGRenderer ()

void	setResource (const std::string &resource)
	initialise object from an SVG file More...

void	render (cairo_t *, double width, double height) const
	render SVG into region of size width height More...

Private Member Functions
	CLASSDESC_ACCESS (SVGRenderer)

Private Attributes
classdesc::Exclude< RsvgHandle * >	svg =nullptr

Detailed Description

Definition at line 29 of file SVGItem.h.

Constructor & Destructor Documentation

◆ SVGRenderer() [1/3]

minsky::SVGRenderer::SVGRenderer ( )

inline

Definition at line 37 of file SVGItem.h.

37 {}

◆ SVGRenderer() [2/3]

minsky::SVGRenderer::SVGRenderer ( const std::string & resource )

inline

Definition at line 38 of file SVGItem.h.

References setResource().

38 {setResource(resource);}

minsky::SVGRenderer::setResource

void setResource(const std::string &resource)

initialise object from an SVG file

Definition: SVGItem.cc:57

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◆ SVGRenderer() [3/3]

minsky::SVGRenderer::SVGRenderer ( const SVGRenderer & )

delete

◆ ~SVGRenderer()

minsky::SVGRenderer::~SVGRenderer ( )

Definition at line 78 of file SVGItem.cc.

   {
     if (svg)
       g_object_unref(svg);
   }

Member Function Documentation

◆ CLASSDESC_ACCESS()

minsky::SVGRenderer::CLASSDESC_ACCESS ( SVGRenderer )

private

◆ operator=()

void minsky::SVGRenderer::operator= ( const SVGRenderer & )

delete

◆ render()

void minsky::SVGRenderer::render	(	cairo_t *	cairo,
		double	width,
		double	height
	)		const

render SVG into region of size width height

Definition at line 84 of file SVGItem.cc.

Referenced by minsky::Lock::draw(), minsky::Ravel::draw(), and minsky::Operation< minsky::OperationType::integrate >::iconDraw().

   {
     if (svg)
 #ifdef MXE // MXE doesn't currently have a Rust compiler, so librsvg can be no later than 2.40.21
       cairo_scale(cairo,width/m_width, height/m_height);
       rsvg_handle_render_cairo(svg,cairo);
 #else
       {
         GError* err=nullptr;
         const RsvgRectangle rect{0,0,width,height};
         rsvg_handle_render_document(svg,cairo,&rect,&err);
       }
 #endif
   }

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◆ setResource()

void minsky::SVGRenderer::setResource ( const std::string & resource )

initialise object from an SVG file

Definition at line 57 of file SVGItem.cc.

Referenced by minsky::Minsky::setGodleyIconResource(), minsky::Minsky::setGroupIconResource(), minsky::Minsky::setLockIconResource(), minsky::Minsky::setRavelIconResource(), and SVGRenderer().

   {
     if (svg) g_object_unref(svg);
     GError* err=nullptr;
     svg=rsvg_handle_new_from_file(resource.c_str(),&err);
     if (err)
       {
         std::string msg="SVGRenderer failed to initialise: ";
         msg+=err->message;
         g_error_free(err);
         throw runtime_error(msg);
       }
 #ifdef MXE // MXE doesn't currently have a Rust compiler, so librsvg can be no later than 2.40.21
     RsvgDimensionData dims;
     rsvg_handle_get_dimensions(svg, &dims);
     m_width=dims.width;
     m_height=dims.height;
 #endif
   }

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Member Data Documentation

◆ svg

classdesc::Exclude<RsvgHandle*> minsky::SVGRenderer::svg =nullptr