Function ShowExampleAppLayout

Source/ThirdParty/imgui/imgui_demo.cpp:4128–4182

Demonstrate create a window with multiple child windows.

// Demonstrate create a window with multiple child windows.
static void ShowExampleAppLayout(bool* p_open)
{
    ImGui::SetNextWindowSize(ImVec2(500, 440), ImGuiCond_FirstUseEver);
    if (ImGui::Begin("Example: Simple layout", p_open, ImGuiWindowFlags_MenuBar))
    {
        if (ImGui::BeginMenuBar())
        {
            if (ImGui::BeginMenu("File"))
            {
                if (ImGui::MenuItem("Close")) *p_open = false;
                ImGui::EndMenu();
            }
            ImGui::EndMenuBar();
        }

        // left
        static int selected = 0;
        ImGui::BeginChild("left pane", ImVec2(150, 0), true);
        for (int i = 0; i < 100; i++)
        {
            char label[128];
            sprintf(label, "MyObject %d", i);
            if (ImGui::Selectable(label, selected == i))
                selected = i;
        }
        ImGui::EndChild();
        ImGui::SameLine();

        // right
        ImGui::BeginGroup();
            ImGui::BeginChild("item view", ImVec2(0, -ImGui::GetFrameHeightWithSpacing())); // Leave room for 1 line below us
                ImGui::Text("MyObject: %d", selected);
                ImGui::Separator();
                if (ImGui::BeginTabBar("##Tabs", ImGuiTabBarFlags_None))
                {
                    if (ImGui::BeginTabItem("Description"))
                    {
                        ImGui::TextWrapped("Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. ");
                        ImGui::EndTabItem();
                    }
                    if (ImGui::BeginTabItem("Details"))
                    {
                        ImGui::Text("ID: 0123456789");
                        ImGui::EndTabItem();
                    }
                    ImGui::EndTabBar();
                }
            ImGui::EndChild();
            if (ImGui::Button("Revert")) {}
            ImGui::SameLine();
            if (ImGui::Button("Save")) {}
        ImGui::EndGroup();
    }
    ImGui::End();
}

//-----------------------------------------------------------------------------
// [SECTION] Example App: Property Editor / ShowExampleAppPropertyEditor()