gui_frame_container.cpp

#include "lxgui/gui_frame_container.hpp"
 
#include "lxgui/gui_factory.hpp"
#include "lxgui/gui_frame.hpp"
#include "lxgui/gui_frame_renderer.hpp"
#include "lxgui/gui_manager.hpp"
#include "lxgui/gui_out.hpp"
#include "lxgui/gui_registry.hpp"
#include "lxgui/utils_std.hpp"
 
namespace lxgui::gui {
 
frame_container::frame_container(
    factory& fac, registry& reg, utils::observer_ptr<frame_renderer> rdr) :
    factory_(fac), registry_(reg), renderer_(rdr) {}
 
utils::observer_ptr<frame> frame_container::create_root_frame_(frame_core_attributes attr) {
    attr.rdr = renderer_;
 
    auto new_frame = factory_.create_frame(registry_, attr);
    if (!new_frame)
        return nullptr;
 
    return add_root_frame(std::move(new_frame));
}
 
utils::observer_ptr<frame> frame_container::add_root_frame(utils::owner_ptr<frame> obj) {
    utils::observer_ptr<frame> added_frame = obj;
    root_frames_.push_back(std::move(obj));
    return added_frame;
}
 
utils::owner_ptr<frame> frame_container::remove_root_frame(const utils::observer_ptr<frame>& obj) {
    frame* frame_raw = obj.get();
    if (!frame_raw)
        return nullptr;
 
    auto iter = utils::find_if(
        root_frames_, [&](const auto& root_frame) { return root_frame.get() == frame_raw; });
 
    if (iter == root_frames_.end())
        return nullptr;
 
    // NB: the iterator is not removed yet; it will be removed later in garbage_collect().
    return std::move(*iter);
}
 
frame_container::root_frame_list_view frame_container::get_root_frames() {
    return root_frame_list_view(root_frames_);
}
 
frame_container::const_root_frame_list_view frame_container::get_root_frames() const {
    return const_root_frame_list_view(root_frames_);
}
 
void frame_container::garbage_collect() {
    auto iter_remove = std::remove_if(
        root_frames_.begin(), root_frames_.end(), [](auto& obj) { return obj == nullptr; });
 
    root_frames_.erase(iter_remove, root_frames_.end());
}
 
void frame_container::clear_frames_() {
    root_frames_.clear();
}
 
} // namespace lxgui::gui