Question regarding custom UnformatedText-like widget implementation #949

text-textinput.cpp

  // Create text input in place of a text
  static void TextAsWidgetReplacement(const ImRect& aabb, const char* label, ImGuiID id)
  {
      ImGuiContext& g = *GImGui;
      ImGuiWindow* window = GetCurrentWindow();

      // Our replacement widget will override the focus ID (registered previously to allow for a TAB focus to happen)
      SetActiveID(g.ScalarAsInputTextId, window);
      SetHoveredID(0);
      FocusableItemUnregister(window);

      InputText (label, (char*)label, strlen (label), ImGuiInputTextFlags_ReadOnly);

      if (g.ScalarAsInputTextId == 0)
      {
          // First frame
          IM_ASSERT(g.ActiveId == id);    // InputText ID expected to match the Slider ID (else we'd need to store them both, which is also possible)
          g.ScalarAsInputTextId = id;
          SetHoveredID(id);

      }
      else if (g.ActiveId != id)
      {
          // Release
          g.ScalarAsInputTextId = 0;
      }
  }

  void TextSelectable(const char* text)
  {
    ImGuiWindow* window = GetCurrentWindow();
    if (window->SkipItems)
        return;

    ImGuiContext& g = *GImGui;

    const ImGuiID id = window->GetID(text);

    const ImVec2 label_size = CalcTextSize(text, NULL, true);
    const ImRect text_bb(window->DC.CursorPos, window->DC.CursorPos + label_size);

    const bool hovered = IsHovered(text_bb, id);
    if (hovered)
        SetHoveredID(id);

    bool start_text_input = false;
    if (hovered && g.IO.MouseDoubleClicked[0])
    {
        SetActiveID(id, window);
        FocusWindow(window);

        start_text_input = true;
        g.ScalarAsInputTextId = 0;
    }
    if (start_text_input || (g.ActiveId == id && g.ScalarAsInputTextId == id))
    {
      TextAsWidgetReplacement(text_bb, text, id);
    }
    else
    {
      TextUnformatted (text, NULL);
    }
  }