MainDockSpace()

void Spices::ImGuiH::MainDockSpace ( Side side = Side::Scene, float alpha = 1.0f )

static

Begin a docking space.

Parameters

[in]	side	Usually Side::Scene.
[in]	alpha	Opacity.

Definition at line 191 of file ImguiHelper.cpp.

    {
        SPICES_PROFILE_ZONE;
 
        // Keeping the unique ID of the dock space
        ImGuiID dockspaceID = ImGui::GetID("DockSpace");
 
        // The dock need a dummy window covering the entire viewport.
        const ImGuiViewport* viewport = ImGui::GetMainViewport();
        ImGui::SetNextWindowPos(viewport->WorkPos);
        ImGui::SetNextWindowSize(viewport->WorkSize);
        ImGui::SetNextWindowViewport(viewport->ID);
        // All flags to dummy window
        ImGuiWindowFlags host_window_flags = 0;
        host_window_flags |= ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoCollapse | ImGuiWindowFlags_NoResize;
        host_window_flags |= ImGuiWindowFlags_NoMove; //| ImGuiWindowFlags_NoDocking;
        host_window_flags |= ImGuiWindowFlags_NoBringToFrontOnFocus | ImGuiWindowFlags_NoNavFocus;
        host_window_flags |= ImGuiWindowFlags_NoBackground;
        // Starting dummy window
        char label[32];
        ImFormatString(label, IM_ARRAYSIZE(label), "DockSpaceViewport_%08X", viewport->ID);
        ImGui::Begin(label, NULL, host_window_flags);
 
        // The central node is transparent, so that when UI is draw after, the image is visible
        // Auto Hide Bar, no title of the panel
        // Center is not dockable, that is for the scene
        ImGuiDockNodeFlags dockspaceFlags =
            ImGuiDockNodeFlags_PassthruCentralNode;
            //ImGuiDockNodeFlags_AutoHideTabBar;
            //ImGuiDockNodeFlags_NoDockingInCentralNode;
 
        // Building the splitting of the dock space is done only once
        if (!ImGui::DockBuilderGetNode(dockspaceID))
        {
 
            ImGui::DockBuilderRemoveNode(dockspaceID);
            ImGui::DockBuilderAddNode(dockspaceID, ImGuiDockNodeFlags_DockSpace);
 
            ImGuiID dock_main_id = dockspaceID;
 
            // Slitting all 4 directions
            ImGuiID id_left = ImGui::DockBuilderSplitNode(dock_main_id, ImGuiDir_Left, 0.2f, nullptr, &dock_main_id);
            ImGui::DockBuilderDockWindow(side == Side::Left ? "Docking Space" : "Dock_left", id_left);
 
            ImGuiID id_right = ImGui::DockBuilderSplitNode(dock_main_id, ImGuiDir_Right, 0.2f, nullptr, &dock_main_id);
            ImGui::DockBuilderDockWindow(side == Side::Right ? "Docking Space" : "Dock_right", id_right);
 
            ImGuiID id_up = ImGui::DockBuilderSplitNode(dock_main_id, ImGuiDir_Up, 0.2f, nullptr, &dock_main_id);
            ImGui::DockBuilderDockWindow(side == Side::Up ? "Docking Space" : "Dock_up", id_up);
 
            ImGuiID id_down = ImGui::DockBuilderSplitNode(dock_main_id, ImGuiDir_Down, 0.2f, nullptr, &dock_main_id);
            ImGui::DockBuilderDockWindow(side == Side::Down ? "Docking Space" : "Dock_down", id_down);
 
            ImGui::DockBuilderDockWindow(side == Side::Scene ? "Docking Space" : "Scene", dock_main_id);  // Center
 
            ImGui::DockBuilderFinish(dock_main_id);
        }
 
        // Setting the panel to blend with alpha
        ImVec4 col = ImGui::GetStyleColorVec4(ImGuiCol_WindowBg);
        ImGui::PushStyleColor(ImGuiCol_WindowBg, ImVec4(col.x, col.y, col.z, alpha));
 
        ImGui::DockSpace(dockspaceID, ImVec2(0.0f, 0.0f), dockspaceFlags);
        ImGui::PopStyleColor();
        ImGui::End();
    }

Referenced by Spices::SlateRenderer::BeginImguiFrame().