Method SeparatorEx

lib/imgui/imgui_widgets.cpp:1251–1306

Horizontal/vertical separating line

// Horizontal/vertical separating line
void ImGui::SeparatorEx(ImGuiSeparatorFlags flags)
{
    ImGuiWindow* window = GetCurrentWindow();
    if (window->SkipItems)
        return;

    ImGuiContext& g = *GImGui;
    IM_ASSERT(ImIsPowerOfTwo(flags & (ImGuiSeparatorFlags_Horizontal | ImGuiSeparatorFlags_Vertical)));   // Check that only 1 option is selected

    float thickness_draw = 1.0f;
    float thickness_layout = 0.0f;
    if (flags & ImGuiSeparatorFlags_Vertical)
    {
        // Vertical separator, for menu bars (use current line height). Not exposed because it is misleading and it doesn't have an effect on regular layout.
        float y1 = window->DC.CursorPos.y;
        float y2 = window->DC.CursorPos.y + window->DC.CurrLineSize.y;
        const ImRect bb(ImVec2(window->DC.CursorPos.x, y1), ImVec2(window->DC.CursorPos.x + thickness_draw, y2));
        ItemSize(ImVec2(thickness_layout, 0.0f));
        if (!ItemAdd(bb, 0))
            return;

        // Draw
        window->DrawList->AddLine(ImVec2(bb.Min.x, bb.Min.y), ImVec2(bb.Min.x, bb.Max.y), GetColorU32(ImGuiCol_Separator));
        if (g.LogEnabled)
            LogText(" |");
    }
    else if (flags & ImGuiSeparatorFlags_Horizontal)
    {
        // Horizontal Separator
        float x1 = window->Pos.x;
        float x2 = window->Pos.x + window->Size.x;
        if (!window->DC.GroupStack.empty())
            x1 += window->DC.Indent.x;

        ImGuiColumns* columns = (flags & ImGuiSeparatorFlags_SpanAllColumns) ? window->DC.CurrentColumns : NULL;
        if (columns)
            PushColumnsBackground();

        // We don't provide our width to the layout so that it doesn't get feed back into AutoFit
        const ImRect bb(ImVec2(x1, window->DC.CursorPos.y), ImVec2(x2, window->DC.CursorPos.y + thickness_draw));
        ItemSize(ImVec2(0.0f, thickness_layout));
        const bool item_visible = ItemAdd(bb, 0);
        if (item_visible)
        {
            // Draw
            window->DrawList->AddLine(bb.Min, ImVec2(bb.Max.x, bb.Min.y), GetColorU32(ImGuiCol_Separator));
            if (g.LogEnabled)
                LogRenderedText(&bb.Min, "--------------------------------");
        }
        if (columns)
        {
            PopColumnsBackground();
            columns->LineMinY = window->DC.CursorPos.y;
        }
    }
}

void ImGui::Separator()