Re: Rendering text with an outline

[Christian Schaubschlaeger <cs gup uni-linz ac at>]

Dov Grobgeld schrieb:
> I cleaned up my example a bit and put it in GnomeLive. See:
>
> http://live.gnome.org/OutlineLabel

Thanks for the example!
I'm just trying to port it to gtkmm. Unfortunately I
cannot find the corresponding C++ construct for the
"Pango.cairo_show_layout()" call in Dov's Vala code.
Would that be a pangocairo function? I could not find
C++ bindings for the pangocairo lib. Are there any?
However, I'm not sure if the code snippet below is
correct at all, I'm (unfortunately) new to Pango and
Cairo...

Thanks and best regards
Christian

bool
OutlineLabel::on_expose(GdkEventExpose *event)
{
    //Gdk::cairo_create(this->window);
    Cairo::RefPtr<Cairo::ImageSurface> surface;
    Cairo::RefPtr<Cairo::Context> cr;
    Glib::RefPtr<Pango::Layout> layout;
    int width,height;

    layout = this->get_layout();
    width = -1; height = -1;
    layout->get_size(width,height);

    surface = Cairo::ImageSurface::create(Cairo::FORMAT_ARGB32, width, height);
    cr = Cairo::Context::create(surface);
    cr->move_to((this->get_allocation().get_width()-width/Pango::SCALE)/2,0);
    cr->set_sorce_rgba(1,0,0,1);

    // in VALA: Pango.cairo_show_layout(cr,layout);
    // in C++?
    ...

}