[swift-users] Need Help with C-to-Swift (finally)

Harlan Haskins harlan at harlanhaskins.com
Fri Dec 11 14:08:04 CST 2015


Mind sending your CCairo modulemap?

I’d love to help you get this translated to Swift.

> On Dec 11, 2015, at 2:44 PM, Gage Morgan via swift-users <swift-users at swift.org> wrote:
> 
> I want to call PNG surfaces from Swift, as well as use cairo_line_to() and cairo_move_to() in Swift. Thing is, I need an example of cairo used in Swift so I can apply it to the rest of cairo. 
> 
> My goal is to generate an executable that outputs *.png images using swift. 
> 
> Thanks for the support,
> --MGage--
> 
> Sent from Outlook Mobile <https://aka.ms/qtex0l>
> 
> 
> 
> On Thu, Dec 10, 2015 at 10:40 PM -0800, "Jason Dusek" <jason.dusek at gmail.com <mailto:jason.dusek at gmail.com>> wrote:
> 
> When you say, output to Swift, do you mean, call it from Swift? Return the PNG or surface to Swift?
> 
> On Thu, 10 Dec 2015 at 22:39 Gage Morgan via swift-users <swift-users at swift.org <mailto:swift-users at swift.org>> wrote:
> So, if I had this code written in C:
> 
> int
> main (int argc, char *argv[])
> {
>         cairo_surface_t *surface =
>             cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 240, 80);
>         cairo_t *cr =
>             cairo_create (surface);
> 
>         cairo_select_font_face (cr, "serif", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_BOLD);
>         cairo_set_font_size (cr, 32.0);
>         cairo_set_source_rgb (cr, 0.0, 0.0, 1.0);
>         cairo_move_to (cr, 10.0, 50.0);
>         cairo_show_text (cr, "Hello, world");
> 
>         cairo_destroy (cr);
>         cairo_surface_write_to_png (surface, "hello.png");
>         cairo_surface_destroy (surface);
>         return 0;
> }
> 
> how would I output to Swift? If I can get one or two examples, I'll be closer to finished with using Cairo in Swift.
> 
> 
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