Method ShowStackToolWindow

src/third-party/imgui/imgui.cpp:13027–13089

Stack Tool: Display UI

// Stack Tool: Display UI
void ImGui::ShowStackToolWindow(bool* p_open)
{
    ImGuiContext& g = *GImGui;
    if (!(g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasSize))
        SetNextWindowSize(ImVec2(0.0f, GetFontSize() * 8.0f), ImGuiCond_FirstUseEver);
    if (!Begin("Dear ImGui Stack Tool", p_open) || GetCurrentWindow()->BeginCount > 1)
    {
        End();
        return;
    }

    // Display hovered/active status
    const ImGuiID hovered_id = g.HoveredIdPreviousFrame;
    const ImGuiID active_id = g.ActiveId;
#ifdef IMGUI_ENABLE_TEST_ENGINE
    Text("HoveredId: 0x%08X (\"%s\"), ActiveId:  0x%08X (\"%s\")", hovered_id, hovered_id ? ImGuiTestEngine_FindItemDebugLabel(&g, hovered_id) : "", active_id, active_id ? ImGuiTestEngine_FindItemDebugLabel(&g, active_id) : "");
#else
    Text("HoveredId: 0x%08X, ActiveId:  0x%08X", hovered_id, active_id);
#endif
    SameLine();
    MetricsHelpMarker("Hover an item with the mouse to display elements of the ID Stack leading to the item's final ID.\nEach level of the stack correspond to a PushID() call.\nAll levels of the stack are hashed together to make the final ID of a widget (ID displayed at the bottom level of the stack).\nRead FAQ entry about the ID stack for details.");

    // Display decorated stack
    ImGuiStackTool* tool = &g.DebugStackTool;
    tool->LastActiveFrame = g.FrameCount;
    if (tool->Results.Size > 0 && BeginTable("##table", 3, ImGuiTableFlags_Borders))
    {
        const float id_width = CalcTextSize("0xDDDDDDDD").x;
        TableSetupColumn("Seed", ImGuiTableColumnFlags_WidthFixed, id_width);
        TableSetupColumn("PushID", ImGuiTableColumnFlags_WidthStretch);
        TableSetupColumn("Result", ImGuiTableColumnFlags_WidthFixed, id_width);
        TableHeadersRow();
        for (int n = 0; n < tool->Results.Size; n++)
        {
            ImGuiStackLevelInfo* info = &tool->Results[n];
            TableNextColumn();
            Text("0x%08X", (n > 0) ? tool->Results[n - 1].ID : 0);

            TableNextColumn();
            ImGuiWindow* window = (info->Desc[0] == 0 && n == 0) ? FindWindowByID(info->ID) : NULL;
            if (window)                                         // Source: window name (because the root ID don't call GetID() and so doesn't get hooked)
                Text("\"%s\" [window]", window->Name);
            else if (info->QuerySuccess)                        // Source: GetID() hooks (prioritize over ItemInfo() because we frequently use patterns like: PushID(str), Button("") where they both have same id)
                TextUnformatted(info->Desc);
            else if (tool->StackLevel >= tool->Results.Size)    // Only start using fallback below when all queries are done, so during queries we don't flickering ??? markers.
            {
#ifdef IMGUI_ENABLE_TEST_ENGINE
                if (const char* label = ImGuiTestEngine_FindItemDebugLabel(&g, info->ID))    // Source: ImGuiTestEngine's ItemInfo()
                    Text("??? \"%s\"", label);
                else
#endif
                    TextUnformatted("???");
            }

            TableNextColumn();
            Text("0x%08X", info->ID);
            if (n == tool->Results.Size - 1)
                TableSetBgColor(ImGuiTableBgTarget_CellBg, GetColorU32(ImGuiCol_Header));