Paul Davis
449aab3c46
git-svn-id: svn://localhost/ardour2/branches/3.0@3435 d708f5d6-7413-0410-9779-e7cbd77b26cf
130 lines
3.7 KiB
C++
130 lines
3.7 KiB
C++
// -*- c++ -*-
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/* $Id: builder.ccg,v 1.11 2006/05/10 20:59:27 murrayc Exp $ */
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/* Copyright 2007 The gtkmm Development Team
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <gtk/gtkbuilder.h>
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// Allow GtkBuilder to instantiate a gtkmm derived GType instead of the regular
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// GTK+ GType, so we can, for instance, use our vfuncs and default signal handlers.
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static GType
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get_type_from_name_vfunc_callback(GtkBuilder*, const char* type_name)
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{
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if (!type_name)
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return G_TYPE_INVALID;
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// See if there is a gtkmm version of the gclass:
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Glib::ustring classname_prefixed ("gtkmm__"); // gtkmm uses a prefix
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classname_prefixed += type_name;
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GType gtype = g_type_from_name(classname_prefixed.c_str());
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if(gtype == G_TYPE_INVALID) // if it's not a registered typename
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{
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// There's no gtkmm derived type, so just use the normal one.
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gtype = g_type_from_name(type_name);
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}
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return gtype;
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}
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namespace Gtk
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{
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//static
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Glib::RefPtr<Builder> Builder::create_from_file(const std::string& filename)
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{
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Glib::RefPtr<Builder> builder = Builder::create();
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if(builder->add_from_file(filename))
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return builder;
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else
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return Glib::RefPtr<Builder>();
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}
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//static
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Glib::RefPtr<Builder> Builder::create_from_string(const Glib::ustring& buffer)
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{
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Glib::RefPtr<Builder> builder = Builder::create();
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if(builder->add_from_string(buffer))
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return builder;
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else
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return Glib::RefPtr<Builder>();
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}
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#ifdef GLIBMM_EXCEPTIONS_ENABLED
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bool Builder::add_from_string(const Glib::ustring& buffer)
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#else
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bool Builder::add_from_string(const Glib::ustring& buffer, std::auto_ptr<Glib::Error>& error)
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#endif //GLIBMM_EXCEPTIONS_ENABLED
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{
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GError* gerror = 0;
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bool retvalue = gtk_builder_add_from_string(gobj(), buffer.c_str(), -1 /* means null-terminated */, &(gerror));
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#ifdef GLIBMM_EXCEPTIONS_ENABLED
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if(gerror)
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::Glib::Error::throw_exception(gerror);
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#else
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if(gerror)
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error = ::Glib::Error::throw_exception(gerror);
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#endif //GLIBMM_EXCEPTIONS_ENABLED
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return retvalue;
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}
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GtkWidget* Builder::get_cwidget(const Glib::ustring& name)
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{
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GObject *cobject = gtk_builder_get_object (gobj(), name.c_str());
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if(!cobject)
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{
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g_critical("gtkmm: object `%s' not found in GtkBuilder file.", name.c_str());
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return 0;
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}
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if (!GTK_IS_WIDGET (cobject))
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{
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g_critical("gtkmm: object `%s' (type=`%s') (in GtkBuilder file) is not a widget type.",
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name.c_str(), G_OBJECT_TYPE_NAME(cobject));
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/* TODO: Unref/sink it? */
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return 0;
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}
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return GTK_WIDGET (cobject);
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}
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Gtk::Widget* Builder::get_widget_checked(const Glib::ustring& name, GType type)
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{
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// Get the widget from the GtkBuilder file.
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GtkWidget *cobject = get_cwidget(name);
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// Check if it has the correct type.
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if(!g_type_is_a(G_OBJECT_TYPE(cobject), type))
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{
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g_critical("gtkmm: widget `%s' (in GtkBuilder file) is of type `%s' but `%s' was expected",
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name.c_str(), G_OBJECT_TYPE_NAME(cobject), g_type_name(type));
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return 0;
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}
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return Glib::wrap (GTK_WIDGET (cobject));
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}
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} // namespace Gtk
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