nf7/file/system_imgui.cc

83 lines
2.1 KiB
C++

#include <memory>
#include <string>
#include <string_view>
#include <typeinfo>
#include <utility>
#include <imgui.h>
#include <yas/serialize.hpp>
#include <yas/types/std/string.hpp>
#include <yas/types/std/string_view.hpp>
#include "nf7.hh"
#include "common/dir_item.hh"
#include "common/generic_type_info.hh"
#include "common/gui_window.hh"
#include "common/ptr_selector.hh"
using namespace std::literals;
namespace nf7 {
namespace {
class ImGui_ final : public nf7::File, public nf7::DirItem {
public:
static inline const nf7::GenericTypeInfo<ImGui_> kType = {"System/ImGui", {}};
ImGui_(nf7::Env& env) noexcept :
nf7::File(kType, env), nf7::DirItem(nf7::DirItem::kNone) {
}
ImGui_(nf7::Deserializer& ar) : ImGui_(ar.env()) {
std::string config;
ar(config);
if (config.size() > 0) {
ImGui::LoadIniSettingsFromMemory(config.data(), config.size());
}
}
void Serialize(nf7::Serializer& ar) const noexcept override {
size_t n;
const char* config = ImGui::SaveIniSettingsToMemory(&n);
ar(std::string_view(config, n));
}
std::unique_ptr<nf7::File> Clone(nf7::Env& env) const noexcept override {
return std::make_unique<ImGui_>(env);
}
void Update() noexcept override;
nf7::File::Interface* interface(const std::type_info& t) noexcept override {
return nf7::InterfaceSelector<nf7::DirItem>(t).Select(this);
}
};
void ImGui_::Update() noexcept {
constexpr auto kFlags =
ImGuiWindowFlags_NoBackground |
ImGuiWindowFlags_NoBringToFrontOnFocus |
ImGuiWindowFlags_NoDecoration |
ImGuiWindowFlags_NoMove |
ImGuiWindowFlags_NoNavFocus;
const auto id = nf7::gui::Window::ConcatId(*this, "Docking Root");
ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, {0, 0});
ImGui::SetNextWindowBgAlpha(0.f);
if (ImGui::Begin(id.c_str(), nullptr, kFlags)) {
const auto vp = ImGui::GetMainViewport();
ImGui::SetWindowPos({0, 0}, ImGuiCond_Always);
ImGui::SetWindowSize(vp->Size, ImGuiCond_Always);
ImGui::DockSpace(ImGui::GetID("DockSpace"), {0, 0},
ImGuiDockNodeFlags_PassthruCentralNode);
}
ImGui::End();
ImGui::PopStyleVar(1);
}
}
} // namespace nf7