Re: [gtkmm] Drawing text to a drawable (gtkmm-1.3.20)

[MHL Schulze t-online de (Martin Schulze)]

Hi Daniel!

I haven't investigated pango(mm) in detail yet, however functions you'd 
like to
use probably are:

(Gtk::Widget::create_pango_context())
Gtk::Widget::get_pango_context()
Gtk::Widget::create_pango_layout()
Pango::Context::create()

Obviously, function pango_layout_new(PangoContext*) is unwrapped so you 
have to
wait until a patch is applied (I'm about to create one :-)) before you can 
use:

Pango::Layout::create(const Glib::RefPtr<Context>&)

Regards,

  Martin


Am 18.08.2002 01:23 schrieb(en) Daniel:
> On 17 Aug 2002 18:41:26 +0100
> Murray Cumming <murrayc usa net> wrote:
>
> > On Sat, 2002-08-17 at 17:52, Daniel wrote:
> > > Hello!
> > >
> > > I had to draw some text to a Gdk::Drawable and i have some questions:
> > >
> > > 1) Which is "the right way" to draw text on a drawingarea. The Gtk+
> doc tells me that I should use a PangoLayout... In Gtkmm i cannot find a
> Pango::layout ctor. How am i supposed to create this Pango::Layout?
> >
> > You need to use create(). Please see
> > http://www.gtkmm.org/gtkmm2/tutorial/html/ch16s02.html
> >
>
> Yes, create-methods exists for the Pixmap and Bitmap but I can't find
> create-methods for Pango::Layout. In the Pango doc you can find the
> following function:
>
> PangoLayout* pango_layout_new (PangoContext *context);
>
> I can't find anything like this in the Gtkmm docs...
>
> /Daniel
>
> > > 2) Gdk::Drawable::draw_glyphs(const Glib::RefPtr<const GC>& gc, const
> Glib::RefPtr<const Pango::Font>& font, int x, int y, PangoGlyphString*
> glyphs)
> > >
> > > Perhaps the last parameter should be a Pango::GlyphString?
> >
> > The header file has this comment:
> > //glyphs seems to be an array, and this function will be used so little
> > that it doesn't seem worth wrapping it to use a container of
> > Pango::GlyphString.
> >
> > Feel free to provide a patch, but the GTK+ docs suggest that you don't
> > need to use it anyway:
> > 
> http://developer.gnome.org/doc/API/2.0/gdk/gdk-drawing-primitives.html#gdk-draw-glyphs
> >
> > I guess we need to merge the GTK+ docs into the gdkmm and pangomm docs.
> >
> > --
> > Murray Cumming
> > murrayc usa net
> > www.murrayc.com
> >
> >
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