Re: [2/2] gdiplus: Store graphics clipping region in device coordinates.

[Vincent Povirk]

I'm curious what happens if the world transform has some rotation. It
seems like transform_rectf would break in that case.

[2/2] gdiplus: Store graphics clipping region in device coordinates.

[Dmitry Timoshkov]

Vincent Povirk <madewokherd(a)gmail.com> wrote:
> I'm curious what happens if the world transform has some rotation. It
> seems like transform_rectf would break in that case.

It works just fine in the samples I have here, why would it break?

-- 
Dmitry.

[2/2] gdiplus: Store graphics clipping region in device coordinates.

[Vincent Povirk]

> It works just fine in the samples I have here, why would it break?

If the rotation is a multiple of 90 degrees, the upper-left corner
will not be the same point, but you're not making any attempt to use a
different corner for the origin of your rectangle.

If the rotation is something like 45 degrees, the result can't be
expressed as a RectF.