Issue about position/docking control of subwindow in SimpleApplication

[Ling-RT]

Dear Prof. Levy,

Thanks for your help on transparency control. Now I have add it to the Vorpaview. Although there are some zigzags in model corners, it is pretty enough for my demand.

Now I get stunk in another problem. I'm trying to add a new panel and put it beside existing "Viewer" panel. Therefore I'm trying to understand the control of subwindow position/docking by checking the context around SimpleApplication::draw_gui(). But I failed to find out that how it works.

I noticed that the "Viewer" panel is well postioned on the left side as well as the "Object" panel on the right side, but I cannot find the code about their postion control. I commented the context around the two panel, changed their order, but their position didn't change. However, if I edit their name (e.g. change "Viewer" to "Viewe" or something else), their position become changed, and they seemed to be positioned at the default position with default panel size. I tried to search by panel name, but found nothing. I think these evidences show that it is not a default control by imgui, and the relevant code must be somewhere but I failed to find out.

Therefore, would you please to tell me how these panel positioned/docked?

Edited:

Sorry but it seems that I have found the answer. The default GUI state is saved in gui_state.h, which can be exported by setting gui:expert = true as command argument.

[BrunoLevy]

Yes, you got it right ! This is the way I do it:

• 1 run your app with the gui:expert=true command line argument
• 2 configure the windows manually
• 3 invoke the menu entry Windows->Export gui state to C++
  This creates a gui_state.h file, that you need to #include in your app source.
  Then you can load the serialized gui state by using Application::set_gui_state(). This is the way that I prefer, because it lets you completely control the state of the windows (including docking and visibility).

Alternatively, you may use instead ImGui::SetNextWindowPos() and ImGui::SetNextWindowSize().

[Ling-RT]

Thanks for your kind reply!