Re: Rotating pixmap

[Mihai BAZON <mbazon websci ro>]

You can use ImageMagick (www.imagemagick.org) -- highly portable, can do
many transformations on a bitmap, knows many file formats, etc.

However, I think it's too much to require users of your program to have
imagemagick installed, only for this problem.  If your animation does
not depend on user (i.e. you already know that it will spin like a
compass) -- why not render it before, and when the program runs only
draw it (avoid useless computations)?

Cheers,

/*   -*- Mishoo -*-         In the beginning there was nothing,
 *  mishoo websci ro      which exploded.   (The Big Bang Theory)  */

On 10 May 2001, Havoc Pennington wrote:

> Marco Quezada <mquezada nlxcorp com> writes:
> > I have a defined a draing area inside which I display a small icon (an
> > arrow). The icon is a pixmap which gets loaded with
> > gdk_pixmap_create_from_xpm_d and such. The XPM of the arrow shows the
> > arrow pointing to the right. I would like to show the arrow rotating
> > like a compass. Is it possible to rotate the pixmap when drawing it onto
> > the drawing area?
>
> No. (That is, GTK provides no way. You can write your own code, but
> it's not trivial.)
>
> Havoc
>
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