+void
+Gtkmm2ext::detach_menu (Gtk::Menu& menu)
+{
+ /* its possible for a Gtk::Menu to have no gobj() because it has
+ not yet been instantiated. Catch this and provide a safe
+ detach method.
+ */
+ if (menu.gobj()) {
+ if (menu.get_attach_widget()) {
+ menu.detach ();
+ }
+ }
+}
+
+bool
+Gtkmm2ext::possibly_translate_keyval_to_make_legal_accelerator (uint32_t& keyval)
+{
+ int fakekey = GDK_VoidSymbol;
+
+ switch (keyval) {
+ case GDK_Tab:
+ case GDK_ISO_Left_Tab:
+ fakekey = GDK_nabla;
+ break;
+
+ case GDK_Up:
+ fakekey = GDK_uparrow;
+ break;
+
+ case GDK_Down:
+ fakekey = GDK_downarrow;
+ break;
+
+ case GDK_Right:
+ fakekey = GDK_rightarrow;
+ break;
+
+ case GDK_Left:
+ fakekey = GDK_leftarrow;
+ break;
+
+ case GDK_Return:
+ fakekey = GDK_3270_Enter;
+ break;
+
+ case GDK_KP_Enter:
+ fakekey = GDK_F35;
+ break;
+
+ default:
+ break;
+ }
+
+ if (fakekey != GDK_VoidSymbol) {
+ keyval = fakekey;
+ return true;
+ }
+
+ return false;
+}
+
+uint32_t
+Gtkmm2ext::possibly_translate_legal_accelerator_to_real_key (uint32_t keyval)
+{
+ switch (keyval) {
+ case GDK_nabla:
+ return GDK_Tab;
+ break;
+
+ case GDK_uparrow:
+ return GDK_Up;
+ break;
+
+ case GDK_downarrow:
+ return GDK_Down;
+ break;
+
+ case GDK_rightarrow:
+ return GDK_Right;
+ break;
+
+ case GDK_leftarrow:
+ return GDK_Left;
+ break;
+
+ case GDK_3270_Enter:
+ return GDK_Return;
+
+ case GDK_F35:
+ return GDK_KP_Enter;
+ break;
+ }
+
+ return keyval;
+}
+
+int
+Gtkmm2ext::physical_screen_height (Glib::RefPtr<Gdk::Window> win)
+{
+ GdkScreen* scr = gdk_screen_get_default();
+
+ if (win) {
+ GdkRectangle r;
+ gint monitor = gdk_screen_get_monitor_at_window (scr, win->gobj());
+ gdk_screen_get_monitor_geometry (scr, monitor, &r);
+ return r.height;
+ } else {
+ return gdk_screen_get_height (scr);
+ }
+}
+
+int
+Gtkmm2ext::physical_screen_width (Glib::RefPtr<Gdk::Window> win)
+{
+ GdkScreen* scr = gdk_screen_get_default();
+
+ if (win) {
+ GdkRectangle r;
+ gint monitor = gdk_screen_get_monitor_at_window (scr, win->gobj());
+ gdk_screen_get_monitor_geometry (scr, monitor, &r);
+ return r.width;
+ } else {
+ return gdk_screen_get_width (scr);
+ }
+}
+
+void
+Gtkmm2ext::container_clear (Gtk::Container& c)
+{
+ list<Gtk::Widget*> children = c.get_children();
+ for (list<Gtk::Widget*>::iterator child = children.begin(); child != children.end(); ++child) {
+ c.remove (**child);
+ }
+}
+
+void
+Gtkmm2ext::rounded_rectangle (Cairo::RefPtr<Cairo::Context> context, double x, double y, double w, double h, double r)
+{
+ rounded_rectangle (context->cobj(), x, y, w, h, r);
+}
+void
+Gtkmm2ext::rounded_top_rectangle (Cairo::RefPtr<Cairo::Context> context, double x, double y, double w, double h, double r)
+{
+ rounded_top_rectangle (context->cobj(), x, y, w, h, r);
+}
+void
+Gtkmm2ext::rounded_top_left_rectangle (Cairo::RefPtr<Cairo::Context> context, double x, double y, double w, double h, double r)
+{
+ rounded_top_left_rectangle (context->cobj(), x, y, w, h, r);
+}
+void
+Gtkmm2ext::rounded_top_right_rectangle (Cairo::RefPtr<Cairo::Context> context, double x, double y, double w, double h, double r)
+{
+ rounded_top_right_rectangle (context->cobj(), x, y, w, h, r);
+}
+void
+Gtkmm2ext::rounded_top_half_rectangle (Cairo::RefPtr<Cairo::Context> context, double x, double y, double w, double h, double r)
+{
+ rounded_top_half_rectangle (context->cobj(), x, y, w, h, r);
+}
+void
+Gtkmm2ext::rounded_bottom_half_rectangle (Cairo::RefPtr<Cairo::Context> context, double x, double y, double w, double h, double r)
+{
+ rounded_bottom_half_rectangle (context->cobj(), x, y, w, h, r);
+}
+void
+Gtkmm2ext::rounded_right_half_rectangle (Cairo::RefPtr<Cairo::Context> context, double x, double y, double w, double h, double r)
+{
+ rounded_right_half_rectangle (context->cobj(), x, y, w, h, r);
+}
+
+void
+Gtkmm2ext::rounded_rectangle (cairo_t* cr, double x, double y, double w, double h, double r)
+{
+ double degrees = M_PI / 180.0;
+
+ cairo_new_sub_path (cr);
+ cairo_arc (cr, x + w - r, y + r, r, -90 * degrees, 0 * degrees); //tr
+ cairo_arc (cr, x + w - r, y + h - r, r, 0 * degrees, 90 * degrees); //br
+ cairo_arc (cr, x + r, y + h - r, r, 90 * degrees, 180 * degrees); //bl
+ cairo_arc (cr, x + r, y + r, r, 180 * degrees, 270 * degrees); //tl
+ cairo_close_path (cr);
+}
+
+void
+Gtkmm2ext::rounded_right_half_rectangle (cairo_t* cr, double x, double y, double w, double h, double r)
+{
+ double degrees = M_PI / 180.0;
+
+ cairo_new_sub_path (cr);
+ cairo_arc (cr, x + w - r, y + r, r, -90 * degrees, 0 * degrees); //tr
+ cairo_arc (cr, x + w - r, y + h - r, r, 0 * degrees, 90 * degrees); //br
+ cairo_line_to (cr, x, y + h); // bl
+ cairo_line_to (cr, x, y); // tl
+ cairo_close_path (cr);
+}
+
+void
+Gtkmm2ext::rounded_top_half_rectangle (cairo_t* cr, double x, double y, double w, double h, double r)
+{
+ double degrees = M_PI / 180.0;
+
+ cairo_new_sub_path (cr);
+ cairo_move_to (cr, x+w, y+h);
+ cairo_line_to (cr, x, y+h);
+ cairo_arc (cr, x + r, y + r, r, 180 * degrees, 270 * degrees); //tl
+ cairo_arc (cr, x + w - r, y + r, r, -90 * degrees, 0 * degrees); //tr
+ cairo_close_path (cr);
+}
+
+void
+Gtkmm2ext::rounded_bottom_half_rectangle (cairo_t* cr, double x, double y, double w, double h, double r)
+{
+ double degrees = M_PI / 180.0;
+
+ cairo_new_sub_path (cr);
+ cairo_move_to (cr, x, y);
+ cairo_line_to (cr, x+w, y);
+ cairo_arc (cr, x + w - r, y + h - r, r, 0 * degrees, 90 * degrees); //br
+ cairo_arc (cr, x + r, y + h - r, r, 90 * degrees, 180 * degrees); //bl
+ cairo_close_path (cr);
+}
+
+
+void
+Gtkmm2ext::rounded_top_rectangle (cairo_t* cr, double x, double y, double w, double h, double r)
+{
+ double degrees = M_PI / 180.0;
+
+ cairo_new_sub_path (cr);
+ cairo_move_to (cr, x+w, y+h);
+ cairo_line_to (cr, x, y+h);
+ cairo_arc (cr, x + r, y + r, r, 180 * degrees, 270 * degrees); //tl
+ cairo_arc (cr, x + w - r, y + r, r, -90 * degrees, 0 * degrees); //tr
+ cairo_close_path (cr);
+}
+
+void
+Gtkmm2ext::rounded_top_left_rectangle (cairo_t* cr, double x, double y, double w, double h, double r)
+{
+/* A****B
+ H *
+ * *
+ * *
+ F****E
+*/
+ cairo_move_to (cr, x+r,y); // Move to A
+ cairo_line_to (cr, x+w,y); // Straight line to B
+ cairo_line_to (cr, x+w,y+h); // Move to E
+ cairo_line_to (cr, x,y+h); // Line to F
+ cairo_line_to (cr, x,y+r); // Line to H
+ cairo_curve_to (cr, x,y,x,y,x+r,y); // Curve to A
+}
+
+void
+Gtkmm2ext::rounded_top_right_rectangle (cairo_t* cr, double x, double y, double w, double h, double r)
+{
+/* A****BQ
+ * C
+ * *
+ * *
+ F****E
+*/
+ cairo_move_to (cr, x,y); // Move to A
+ cairo_line_to (cr, x+w-r,y); // Straight line to B
+ cairo_curve_to (cr, x+w,y,x+w,y,x+w,y+r); // Curve to C, Control points are both at Q
+ cairo_line_to (cr, x+w,y+h); // Move to E
+ cairo_line_to (cr, x,y+h); // Line to F
+ cairo_line_to (cr, x,y); // Line to A
+}
+
+Glib::RefPtr<Gdk::Window>
+Gtkmm2ext::window_to_draw_on (Gtk::Widget& w, Gtk::Widget** parent)
+{
+ if (w.get_has_window()) {
+ return w.get_window();
+ }
+
+ (*parent) = w.get_parent();
+
+ while (*parent) {
+ if ((*parent)->get_has_window()) {
+ return (*parent)->get_window ();
+ }
+ (*parent) = (*parent)->get_parent ();
+ }
+
+ return Glib::RefPtr<Gdk::Window> ();
+}
+
+int
+Gtkmm2ext::pixel_width (const string& str, Pango::FontDescription& font)
+{
+ Gtk::Label foo;
+ Glib::RefPtr<Pango::Layout> layout = foo.create_pango_layout ("");
+
+ layout->set_font_description (font);
+ layout->set_text (str);
+
+ int width, height;
+ Gtkmm2ext::get_ink_pixel_size (layout, width, height);
+ return width;
+}
+
+#if 0
+string
+Gtkmm2ext::fit_to_pixels (const string& str, int pixel_width, Pango::FontDescription& font, int& actual_width, bool with_ellipses)
+{
+ /* DECEMBER 2011: THIS PROTOTYPE OF fit_to_pixels() IS NOT USED
+ ANYWHERE AND HAS NOT BEEN TESTED.
+ */
+ Gtk::Label foo;
+ Glib::RefPtr<Pango::Layout> layout = foo.create_pango_layout (str);
+ Glib::RefPtr<const Pango::LayoutLine> line;
+
+ layout->set_font_description (font);
+ layout->set_width (pixel_width * PANGO_SCALE);
+
+ if (with_ellipses) {
+ layout->set_ellipsize (Pango::ELLIPSIZE_END);
+ } else {
+ layout->set_wrap (Pango::WRAP_CHAR);
+ }
+
+ line = layout->get_line (0);
+
+ /* XXX: might need special care to get the ellipsis character, not sure
+ how that works
+ */
+
+ string s = string (layout->get_text ().substr(line->get_start_index(), line->get_length()));
+
+ cerr << "fit to pixels of " << str << " returns " << s << endl;
+
+ return s;
+}
+#endif
+
+/** Try to fit a string into a given horizontal space by ellipsizing it.
+ * @param cr Cairo context in which the text will be plotted.
+ * @param name Text.
+ * @param avail Available horizontal space.
+ * @return (Text, possibly ellipsized) and (horizontal size of text)
+ */
+
+std::pair<std::string, double>
+Gtkmm2ext::fit_to_pixels (cairo_t* cr, std::string name, double avail)
+{
+ /* XXX hopefully there exists a more efficient way of doing this */
+
+ bool abbreviated = false;
+ uint32_t width = 0;
+
+ while (1) {
+ cairo_text_extents_t ext;
+ cairo_text_extents (cr, name.c_str(), &ext);
+
+ if (ext.width < avail || name.length() <= 4) {
+ width = ext.width;
+ break;
+ }
+
+ if (abbreviated) {
+ name = name.substr (0, name.length() - 4) + "...";
+ } else {
+ name = name.substr (0, name.length() - 3) + "...";
+ abbreviated = true;
+ }
+ }
+
+ return std::make_pair (name, width);
+}
+
+Gtk::Label *
+Gtkmm2ext::left_aligned_label (string const & t)
+{
+ Gtk::Label* l = new Gtk::Label (t);
+ l->set_alignment (0, 0.5);
+ return l;
+}
+
+static bool
+make_null_tooltip (int, int, bool, const Glib::RefPtr<Gtk::Tooltip>& t)
+{
+ t->set_tip_area (Gdk::Rectangle (0, 0, 0, 0));
+ return true;
+}
+
+/** Hackily arrange for the provided widget to have no tooltip,
+ * and also to stop any other widget from providing one while
+ * the mouse is over w.
+ */
+void
+Gtkmm2ext::set_no_tooltip_whatsoever (Gtk::Widget& w)
+{
+ w.property_has_tooltip() = true;
+ w.signal_query_tooltip().connect (sigc::ptr_fun (make_null_tooltip));
+}
+
+void
+Gtkmm2ext::enable_tooltips ()
+{
+ gtk_rc_parse_string ("gtk-enable-tooltips = 1");
+}
+
+void
+Gtkmm2ext::disable_tooltips ()
+{
+ gtk_rc_parse_string ("gtk-enable-tooltips = 0");
+}
+