Method drawPanel

src-interface/viewer/viewer.cpp:216–348

    }

    void ViewerApplication::drawPanel()
    {
        if (ImGui::BeginTabBar("Viewer Prob Tabbar", ImGuiTabBarFlags_None))
        {
            ImGui::SetNextItemWidth(ImGui::GetWindowWidth() / 2);
            if (ImGui::BeginTabItem("Products###productsviewertab"))
            {
                if (current_selected_tab != 0)
                    current_selected_tab = 0;

                if (ImGui::CollapsingHeader("General", ImGuiTreeNodeFlags_DefaultOpen))
                {
                    for (std::string dataset_name : opened_datasets)
                    {
                        if (products_cnt_in_dataset(dataset_name))
                        {
                            ImGui::TreeNodeEx(dataset_name.c_str(), ImGuiTreeNodeFlags_Leaf | ImGuiTreeNodeFlags_NoTreePushOnOpen);
                            ImGui::TreePush(std::string("##HandlerTree" + dataset_name).c_str());

                            { // Closing button
                                ImGui::SameLine();
                                ImGui::Text("  ");
                                ImGui::SameLine();

                                ImGui::PushStyleColor(ImGuiCol_Text, style::theme.red.Value);
                                ImGui::PushStyleColor(ImGuiCol_Button, ImVec4());
                                ImGui::PushStyleVar(ImGuiStyleVar_FrameBorderSize, 0);
                                if (ImGui::SmallButton(std::string(u8"\uf00d##dataset" + dataset_name).c_str()))
                                {
                                    logger->info("Closing datset " + dataset_name);
                                    for (int i = 0; i < (int)products_and_handlers.size(); i++)
                                        if (products_and_handlers[i]->dataset_name == dataset_name)
                                        {
                                            products_and_handlers[i]->marked_for_close = true;
                                        }
                                }
                                ImGui::PopStyleVar();
                                ImGui::PopStyleColor(2);
                            }

                            const ImColor TreeLineColor = ImColor(128, 128, 128, 255); // ImGui::GetColorU32(ImGuiCol_Text);
                            const float SmallOffsetX = 11.0f;                          // for now, a hardcoded value; should take into account tree indent size
                            ImDrawList *drawList = ImGui::GetWindowDrawList();

                            ImVec2 verticalLineStart = ImGui::GetCursorScreenPos();
                            verticalLineStart.x += SmallOffsetX; // to nicely line up with the arrow symbol
                            ImVec2 verticalLineEnd = verticalLineStart;

                            for (int i = 0; i < (int)products_and_handlers.size(); i++)
                            {
                                if (products_and_handlers[i]->dataset_name == dataset_name)
                                {
                                    const float HorizontalTreeLineSize = 8.0f * ui_scale;                 // chosen arbitrarily
                                    const ImRect childRect = renderHandler(*products_and_handlers[i], i); // RenderTree(child);
                                    const float midpoint = (childRect.Min.y + childRect.Max.y) / 2.0f;
                                    drawList->AddLine(ImVec2(verticalLineStart.x, midpoint), ImVec2(verticalLineStart.x + HorizontalTreeLineSize, midpoint), TreeLineColor);
                                    verticalLineEnd.y = midpoint;
                                }