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// SPDX-License-Identifier: GPL-2.0-or-later
/** @file
* @brief Gtk builder utilities
*/
/* Authors:
* Michael Kowalski
*
* Copyright (C) 2021 Michael Kowalski
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#ifndef SEEN_BUILDER_UTILS_H
#define SEEN_BUILDER_UTILS_H
#include <glibmm/refptr.h>
#include <gtkmm/builder.h>
namespace Inkscape {
namespace UI {
// get widget from builder or throw
template<class W> W& get_widget(const Glib::RefPtr<Gtk::Builder>& builder, const char* id) {
W* widget;
builder->get_widget(id, widget);
if (!widget) {
throw std::runtime_error("Missing widget in a glade resource file");
}
return *widget;
}
template<class W, typename... Args>
W& get_derived_widget(const Glib::RefPtr<Gtk::Builder>& builder, const char* id, Args&&... args) {
W* widget;
builder->get_widget_derived(id, widget, std::forward<Args>(args)...);
if (!widget) {
throw std::runtime_error("Missing widget in a glade resource file");
}
return *widget;
}
template<class Ob> Glib::RefPtr<Ob> get_object(Glib::RefPtr<Gtk::Builder>& builder, const char* id) {
auto object = Glib::RefPtr<Ob>::cast_dynamic(builder->get_object(id));
if (!object) {
throw std::runtime_error("Missing object in a glade resource file");
}
return object;
}
/**
* This version of get_object is needed for Gtk::CellRenderer objects which can not be
* put into Glib::RefPtr by the compiler, but are somehow passed to us as RefPtrs anyway.
*/
template <class Ob>
Ob &get_object_raw(Glib::RefPtr<Gtk::Builder> &builder, const char *id)
{
auto object = dynamic_cast<Ob *>(builder->get_object(id).get());
if (!object) {
throw std::runtime_error("Missing object in a glade resource file");
}
return *object;
}
// load glade file from share/ui folder and return builder; throws on errors
Glib::RefPtr<Gtk::Builder> create_builder(const char* filename);
} } // namespace
#endif // SEEN_BUILDER_UTILS_H
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