SVG and its boundaries

General JUCE discussion
10

as a usecase, i want to resize SVG to match desired bounds while preserving ratio and respecting its viewbox/content area.

and this is how i achieve proper placement and scale, where the scale “float s” is sort of a magnify level

AffineTransform getTransformWith(int w, int h, float s, RectanglePlacement::Flags p = RectanglePlacement::fillDestination) {
	if(viewBox.getWidth() == 0 || viewBox.getHeight() == 0) return AffineTransform();
	float newX = 0.f;
	float newY = 0.f;
	float scaleX = w / viewBox.getWidth();
	float scaleY = (h > 0.f ? h : w) / viewBox.getHeight();
	scaleX *= s;
	scaleY *= s;

	if(p != RectanglePlacement::stretchToFit) {
		scaleX = (p == RectanglePlacement::Flags::centred) ? 1.f : jmax(jmin(scaleX, scaleY), 0.0f);
		scaleY = scaleX;
		newX += (w - viewBox.getWidth() * scaleX) / 2.0f;    // centre
		newY += ((h > 0.f ? h : w) - viewBox.getHeight() * scaleX) / 2.0f;    // centre
	}
	auto at = AffineTransform::scale(scaleX, scaleY).translated(newX, newY);
	return at.isSingularity() ? AffineTransform() : at;
}