SvgSize.h File Reference

Reads the size an SVG image says it has. More...

#include <wx/gdicmn.h>
#include <wx/string.h>

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Functions
wxSize	wxm::SvgIntrinsicSize (const wxString &svg, double ppi=96)
	The size an SVG document declares, in pixels.

Detailed Description

Reads the size an SVG image says it has.

wxBitmapBundle::FromSVG() renders an SVG at whatever size it is asked for, but wxWidgets has no public way to ask the SVG how big it wants to be (its implementations know, but keep it to themselves, in 3.2 and 3.3 alike). An image in the worksheet needs exactly that, as its 100% size, so we read it from the root element ourselves: its width and height attributes, or its viewBox if those are missing or relative.

Function Documentation

SvgIntrinsicSize()

wxSize wxm::SvgIntrinsicSize	(	const wxString &	svg,
		double	ppi = 96
	)

The size an SVG document declares, in pixels.

Parameters

svg	The SVG document as text.
ppi	The resolution physical units (in, cm, mm, pt, pc) are converted at. A unitless length or one in px is a pixel at any resolution, as in every SVG renderer.

Returns

The size, or wxDefaultSize if the text has no root svg element or that element gives no usable size.