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Diffstat (limited to 'gui/include/template_widget.hpp')
| -rw-r--r-- | gui/include/template_widget.hpp | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/gui/include/template_widget.hpp b/gui/include/template_widget.hpp new file mode 100644 index 0000000..f90b473 --- /dev/null +++ b/gui/include/template_widget.hpp @@ -0,0 +1,72 @@ +/* + * SPDX-FileCopyrightText: 2025 Felix Morgner <felix.morgner@gmail.com> + * SPDX-License-Identifier: LGPL-2.1-only + */ + +#ifndef TURNS_UI_TEMPLATE_WIDGET_HPP +#define TURNS_UI_TEMPLATE_WIDGET_HPP + +#include <glibmm/extraclassinit.h> +#include <glibmm/ustring.h> +#include <glibmm/wrap.h> + +#include <gtkmm/widget.h> + +#include <glib-object.h> +#include <glib.h> +#include <gtk/gtk.h> + +#include <algorithm> +#include <utility> + +namespace turns::ui +{ + + template<typename CustomWidgetType, typename BaseWidgetType> + struct template_widget : Glib::ExtraClassInit, + BaseWidgetType + { + template<typename... BaseWidgetCtorArgTypes> + template_widget(Glib::ustring && resource_path, BaseWidgetCtorArgTypes &&... base_widget_ctor_args) + : Glib::ExtraClassInit{class_init, &resource_path, instance_init} + , BaseWidgetType{std::forward<BaseWidgetCtorArgTypes>(base_widget_ctor_args)...} + { + } + + protected: + template<typename WidgetType = Gtk::Widget> + auto get_widget(char const * name) -> WidgetType * + { + auto self = static_cast<CustomWidgetType *>(this); + auto widget = GTK_WIDGET(Glib::unwrap(self)); + auto type = G_OBJECT_TYPE(Glib::unwrap(self)); + auto child = GTK_WIDGET(gtk_widget_get_template_child(widget, type, name)); + g_assert_nonnull(child); + return dynamic_cast<WidgetType *>(Glib::wrap(child)); + } + + private: + auto static class_init(void * g_class, void * g_class_data) -> void + { + g_return_if_fail(GTK_IS_WIDGET_CLASS(g_class)); + + auto resource_path = static_cast<Glib::ustring const *>(g_class_data); + + gtk_widget_class_set_template_from_resource(GTK_WIDGET_CLASS(g_class), resource_path->c_str()); + + std::ranges::for_each(CustomWidgetType::children, [g_class](auto const & child) { + gtk_widget_class_bind_template_child_full(GTK_WIDGET_CLASS(g_class), child, false, 0); + }); + } + + auto static instance_init(GTypeInstance * instance, void * /* type_class */) -> void + { + g_return_if_fail(GTK_IS_WIDGET(instance)); + + gtk_widget_init_template(GTK_WIDGET(instance)); + } + }; + +} // namespace turns::ui::widgets + +#endif
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