+
+Glib::RefPtr<Gdk::Pixbuf>
+pixbuf_from_ustring(const ustring& name, Pango::FontDescription* font, int clip_width, int clip_height, Gdk::Color fg)
+{
+ static Glib::RefPtr<Gdk::Pixbuf>* empty_pixbuf = 0;
+
+ if (name.empty()) {
+ if (empty_pixbuf == 0) {
+ empty_pixbuf = new Glib::RefPtr<Gdk::Pixbuf>;
+ *empty_pixbuf = Gdk::Pixbuf::create(Gdk::COLORSPACE_RGB, true, 8, clip_width, clip_height);
+ }
+ return *empty_pixbuf;
+ }
+
+ Glib::RefPtr<Gdk::Pixbuf> buf = Gdk::Pixbuf::create(Gdk::COLORSPACE_RGB, true, 8, clip_width, clip_height);
+
+ cairo_surface_t* surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, clip_width, clip_height);
+ cairo_t* cr = cairo_create (surface);
+ cairo_text_extents_t te;
+
+ cairo_set_source_rgba (cr, fg.get_red_p(), fg.get_green_p(), fg.get_blue_p(), 1.0);
+ cairo_select_font_face (cr, font->get_family().c_str(),
+ CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL);
+ cairo_set_font_size (cr, font->get_size() / Pango::SCALE);
+ cairo_text_extents (cr, name.c_str(), &te);
+
+ cairo_move_to (cr, 0.5, 0.5 - te.height / 2 - te.y_bearing + clip_height / 2);
+ cairo_show_text (cr, name.c_str());
+
+ convert_bgra_to_rgba(cairo_image_surface_get_data (surface), buf->get_pixels(), clip_width, clip_height);
+
+ cairo_destroy(cr);
+ cairo_surface_destroy(surface);
+
+ return buf;
+}
+
+/** Replace _ with __ in a string; for use with menu item text to make underscores displayed correctly */
+string
+escape_underscores (string const & s)
+{
+ string o;
+ string::size_type const N = s.length ();
+
+ for (string::size_type i = 0; i < N; ++i) {
+ if (s[i] == '_') {
+ o += "__";
+ } else {
+ o += s[i];
+ }
+ }
+
+ return o;
+}
+
+static void
+adjustment_to_controllable (Gtk::Adjustment* adj, boost::weak_ptr<Controllable> wcont)
+{
+ boost::shared_ptr<Controllable> cont = wcont.lock();
+
+ if (cont) {
+ double val = adj->get_value();
+ if (val != cont->get_value()) {
+ cont->set_value (val);
+ }
+ }
+}
+
+static void
+controllable_to_adjustment (Gtk::Adjustment* adj, boost::weak_ptr<Controllable> wcont)
+{
+ boost::shared_ptr<Controllable> cont = wcont.lock();
+
+ if (cont) {
+ float val = cont->get_value();
+
+ if (val != adj->get_value()) {
+ adj->set_value (val);
+ }
+ }
+}
+
+void
+control_link (ScopedConnectionList& scl, boost::shared_ptr<Controllable> c, Gtk::Adjustment& a)
+{
+ boost::weak_ptr<Controllable> wc (c);
+
+ a.signal_value_changed().connect (sigc::bind (sigc::ptr_fun (adjustment_to_controllable), &a, wc));
+ c->Changed.connect (scl, MISSING_INVALIDATOR, boost::bind (controllable_to_adjustment, &a, wc),
+ gui_context());
+}
+
projects / ardour.git / blobdiff