add file selector with sorting
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parent
082c4febdf
commit
5a9aacc603
@ -17,6 +17,8 @@ add_executable(tomato
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texture_uploader.hpp
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./sdlrenderer_texture_uploader.hpp
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./sdlrenderer_texture_uploader.cpp
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./file_selector.hpp
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./file_selector.cpp
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)
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target_compile_features(tomato PUBLIC cxx_std_17)
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235
src/file_selector.cpp
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235
src/file_selector.cpp
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@ -0,0 +1,235 @@
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#include "./file_selector.hpp"
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#include <filesystem>
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#include <imgui/imgui.h>
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#include <chrono>
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#include <iostream>
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void FileSelector::reset(void) {
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_is_valid = [](auto){ return true; };
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_on_choose = [](auto){};
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_on_cancel = [](){};
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}
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FileSelector::FileSelector(void) {
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reset();
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}
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void FileSelector::requestFile(
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std::function<bool(const std::filesystem::path& path)>&& is_valid,
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std::function<void(const std::filesystem::path& path)>&& on_choose,
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std::function<void(void)>&& on_cancel
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) {
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_open_popup = true;
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_is_valid = std::move(is_valid);
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_on_choose = std::move(on_choose);
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_on_cancel = std::move(on_cancel);
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}
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void FileSelector::render(void) {
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if (_open_popup) {
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_open_popup = false;
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ImGui::OpenPopup("file picker##FileSelector");
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const auto TEXT_BASE_WIDTH = ImGui::CalcTextSize("A").x;
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const auto TEXT_BASE_HEIGHT = ImGui::GetTextLineHeightWithSpacing();
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ImGui::SetNextWindowSize({TEXT_BASE_WIDTH*100, TEXT_BASE_HEIGHT*30});
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}
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if (ImGui::BeginPopupModal("file picker##FileSelector", nullptr/*, ImGuiWindowFlags_NoDecoration*/)) {
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const auto TEXT_BASE_WIDTH = ImGui::CalcTextSize("A").x;
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const auto TEXT_BASE_HEIGHT = ImGui::GetTextLineHeightWithSpacing();
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std::filesystem::path current_path = _current_file_path;
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current_path.remove_filename();
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ImGui::Text("path: %s", _current_file_path.c_str());
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// begin table with selectables
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constexpr ImGuiTableFlags table_flags =
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ImGuiTableFlags_BordersInnerV |
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ImGuiTableFlags_RowBg |
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ImGuiTableFlags_SizingFixedFit |
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ImGuiTableFlags_ScrollY |
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ImGuiTableFlags_Sortable
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;
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if (ImGui::BeginTable("dir listing", 4, table_flags, {0, -TEXT_BASE_HEIGHT * 2.5f})) {
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enum class SortID : ImGuiID {
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name = 1,
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size,
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date
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};
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ImGui::TableSetupColumn("type", 0, TEXT_BASE_WIDTH);
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ImGui::TableSetupColumn("name", ImGuiTableColumnFlags_WidthStretch | ImGuiTableColumnFlags_DefaultSort, 0.f, static_cast<ImGuiID>(SortID::name));
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ImGui::TableSetupColumn("size", 0, 0.f, static_cast<ImGuiID>(SortID::size));
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ImGui::TableSetupColumn("dd.mm.yyyy - hh:mm", 0, 0.f, static_cast<ImGuiID>(SortID::date));
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ImGui::TableSetupScrollFreeze(0, 2);
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ImGui::TableHeadersRow();
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//ImGui::TableNextRow(0, TEXT_BASE_HEIGHT);
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if (current_path.has_parent_path()) {
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if (ImGui::TableNextColumn()) {
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if (ImGui::Selectable("D##..", false, ImGuiSelectableFlags_SpanAllColumns | ImGuiSelectableFlags_AllowItemOverlap)) {
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_current_file_path = _current_file_path.parent_path();
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}
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}
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if (ImGui::TableNextColumn()) {
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ImGui::TextUnformatted("..");
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}
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if (ImGui::TableNextColumn()) {
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ImGui::TextDisabled("---");
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}
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if (ImGui::TableNextColumn()) {
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ImGui::TextDisabled("---");
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}
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}
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size_t tmp_id = 0;
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// dirs
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static const ImU32 dir_bg0_color = ImGui::GetColorU32(ImVec4(0.6, 0.6, 0.1, 0.15));
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static const ImU32 dir_bg1_color = ImGui::GetColorU32(ImVec4(0.7, 0.7, 0.2, 0.15));
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std::vector<std::filesystem::directory_entry> dirs;
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std::vector<std::filesystem::directory_entry> files;
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for (auto const& dir_entry : std::filesystem::directory_iterator(current_path)) {
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if (dir_entry.is_directory()) {
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dirs.push_back(dir_entry);
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} else if (dir_entry.is_regular_file()) {
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files.push_back(dir_entry);
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}
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}
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// do sorting here
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// TODO: cache the result (lol)
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if (ImGuiTableSortSpecs* sorts_specs = ImGui::TableGetSortSpecs(); sorts_specs != nullptr && sorts_specs->SpecsCount >= 1) {
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switch (static_cast<SortID>(sorts_specs->Specs->ColumnUserID)) {
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break; case SortID::name:
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if (sorts_specs->Specs->SortDirection == ImGuiSortDirection_Descending) {
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std::sort(dirs.begin(), dirs.end(), [](const auto& a, const auto& b) -> bool {
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return a.path() < b.path();
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});
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std::sort(files.begin(), files.end(), [](const auto& a, const auto& b) -> bool {
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return a.path().filename() < b.path().filename();
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});
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} else {
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std::sort(dirs.begin(), dirs.end(), [](const auto& a, const auto& b) -> bool {
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return a.path() > b.path();
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});
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std::sort(files.begin(), files.end(), [](const auto& a, const auto& b) -> bool {
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return a.path().filename() > b.path().filename();
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});
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}
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break; case SortID::size:
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if (sorts_specs->Specs->SortDirection == ImGuiSortDirection_Descending) {
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// TODO: sort dirs?
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std::sort(files.begin(), files.end(), [](const auto& a, const auto& b) -> bool {
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return a.file_size() < b.file_size();
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});
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} else {
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// TODO: sort dirs?
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std::sort(files.begin(), files.end(), [](const auto& a, const auto& b) -> bool {
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return a.file_size() > b.file_size();
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});
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}
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break; case SortID::date:
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if (sorts_specs->Specs->SortDirection == ImGuiSortDirection_Descending) {
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std::sort(dirs.begin(), dirs.end(), [](const auto& a, const auto& b) -> bool {
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return a.last_write_time() < b.last_write_time();
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});
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std::sort(files.begin(), files.end(), [](const auto& a, const auto& b) -> bool {
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return a.last_write_time() < b.last_write_time();
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});
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} else {
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std::sort(dirs.begin(), dirs.end(), [](const auto& a, const auto& b) -> bool {
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return a.last_write_time() > b.last_write_time();
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});
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std::sort(files.begin(), files.end(), [](const auto& a, const auto& b) -> bool {
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return a.last_write_time() > b.last_write_time();
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});
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}
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break; default: ;
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}
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}
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for (auto const& dir_entry : dirs) {
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if (ImGui::TableNextColumn()) {
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if (tmp_id & 0x01) {
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ImGui::TableSetBgColor(ImGuiTableBgTarget_RowBg0, dir_bg0_color);
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} else {
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ImGui::TableSetBgColor(ImGuiTableBgTarget_RowBg1, dir_bg1_color);
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}
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ImGui::PushID(tmp_id++);
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if (ImGui::Selectable("D", false, ImGuiSelectableFlags_SpanAllColumns | ImGuiSelectableFlags_AllowItemOverlap)) {
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_current_file_path = dir_entry.path() / "";
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}
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ImGui::PopID();
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}
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if (ImGui::TableNextColumn()) {
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ImGui::TextUnformatted((dir_entry.path().filename().string() + "/").c_str());
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}
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if (ImGui::TableNextColumn()) {
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ImGui::TextDisabled("---");
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}
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if (ImGui::TableNextColumn()) {
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const auto ctime = std::chrono::system_clock::to_time_t(dir_entry.last_write_time() - decltype(dir_entry.last_write_time())::clock::now() + std::chrono::system_clock::now());
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const auto ltime = std::localtime(&ctime);
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ImGui::TextDisabled("%2d.%2d.%2d - %2d:%2d", ltime->tm_mday, ltime->tm_mon, ltime->tm_year + 1900, ltime->tm_hour, ltime->tm_min);
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}
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}
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// files
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for (auto const& dir_entry : files) {
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if (ImGui::TableNextColumn()) {
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ImGui::PushID(tmp_id++);
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if (ImGui::Selectable("F", false, ImGuiSelectableFlags_SpanAllColumns | ImGuiSelectableFlags_AllowItemOverlap)) {
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_current_file_path = dir_entry.path();
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}
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ImGui::PopID();
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}
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if (ImGui::TableNextColumn()) {
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ImGui::TextUnformatted(dir_entry.path().filename().c_str());
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}
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if (ImGui::TableNextColumn()) {
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ImGui::TextDisabled("%s", std::to_string(dir_entry.file_size()).c_str());
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}
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if (ImGui::TableNextColumn()) {
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const auto ctime = std::chrono::system_clock::to_time_t(dir_entry.last_write_time() - decltype(dir_entry.last_write_time())::clock::now() + std::chrono::system_clock::now());
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const auto ltime = std::localtime(&ctime);
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ImGui::TextDisabled("%2d.%2d.%2d - %2d:%2d", ltime->tm_mday, ltime->tm_mon, ltime->tm_year + 1900, ltime->tm_hour, ltime->tm_min);
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}
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}
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ImGui::EndTable();
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}
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if (ImGui::Button("X cancel", {ImGui::GetWindowContentRegionWidth()/2.f, TEXT_BASE_HEIGHT*2})) {
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ImGui::CloseCurrentPopup();
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_on_cancel();
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reset();
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}
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ImGui::SameLine();
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if (ImGui::Button("choose ->", {-FLT_MIN, TEXT_BASE_HEIGHT*2})) {
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if (_is_valid(_current_file_path)) {
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ImGui::CloseCurrentPopup();
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_on_choose(_current_file_path);
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reset();
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}
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}
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ImGui::EndPopup();
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}
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}
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30
src/file_selector.hpp
Normal file
30
src/file_selector.hpp
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@ -0,0 +1,30 @@
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#pragma once
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#include <filesystem>
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#include <functional>
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struct FileSelector {
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std::filesystem::path _current_file_path = std::filesystem::canonical(".") / ""; // add /
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bool _open_popup {false};
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std::function<bool(const std::filesystem::path& path)> _is_valid = [](auto){ return true; };
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std::function<void(const std::filesystem::path& path)> _on_choose = [](auto){};
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std::function<void(void)> _on_cancel = [](){};
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void reset(void);
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public:
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FileSelector(void);
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// TODO: supply hints
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void requestFile(
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std::function<bool(const std::filesystem::path& path)>&& is_valid,
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std::function<void(const std::filesystem::path& path)>&& on_choose,
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std::function<void(void)>&& on_cancel
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);
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// call this each frame
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void render(void);
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};
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