Reset Layout of CDockablePane

Question

I migrated my MFC MDI application to use the new MFC Feature Pack. I have many toolbars and dockable panes. As far as I understand, the location and size of each of them is saved in the registry when closing the application, and loaded when loading the main frame.

I want to add a feature in my application to reset the layout of the toolbars/panes to the original layout.

I have tabbedpanes also in my application.

sometimes I will dock separate panes to tabbed panes.

Is there a way to actually reset the layout of my application AFTER it has been loaded?

Visual Studio has a similar feature called "Reset Window Layout".

I am getting samples in the internet for restoring mainframe window using SetWindowPlacement() and GetWindowPlacement().

I don't know how to use these functions for toolbars and CDockablePanes and achieve my requirement?

Is there any other solution apart from using SetWindowPlacement() and GetWindowPlacement()?

Answer 1

As described in my comment above, one option to restore the initial layout from a running application would be to use the methods provided by CDockablePane, specifically

• AttachToTabWindow
• DockToWindow and
• ShowPane

A second option, which would require restarting your application, is to call EnableLoadDockState(FALSE) in the constructor of your CFrameWndEx derived class. This would prevent loading the stored dock state and, as a consequence, restore the initial layout.

Answer 2

A simple method to solve this is to delete from registry key all keys which store the panels info: "BasePane" and "Pane" from "Workspace" registry folder from your app registry entry :) Easy.

Answer 3

I am able to meet my requirement using below code.

 void CMainFrame::OnPanesResetLayout() 
    {
        CDockingManager* pDockMgr = GetDockingManager();
        if (pDockMgr == NULL)return;
        CRect rect;
        rect.SetRectEmpty();
        ClientToScreen(rect);
        SetRedraw(FALSE);

        CObList list;
        pDockMgr->GetPaneList(list, TRUE,0,TRUE);
        // UnDock and hide DockingControlBars
        POSITION pos;
        for (pos = list.GetHeadPosition(); pos != NULL;)
        {
            CBasePane* pBarNext = (CBasePane*) list.GetNext(pos);
            if (!::IsWindow(pBarNext->m_hWnd))continue;
            CDockablePane* pBar = DYNAMIC_DOWNCAST(CDockablePane, pBarNext);
            if (pBar != NULL)
            {
                if(pBar->IsAutoHideMode()) pBar->SetAutoHideMode(FALSE, CBRS_ALIGN_ANY);/*ToggleAutoHide();*/
                if (pBar->IsMDITabbed ())
                    continue;
                pBar->UndockPane();
                ShowPane(pBar, FALSE,FALSE, FALSE);
            }
            CMFCToolbar* pToolBar = DYNAMIC_DOWNCAST(CMFCToolbar, pBarNext);
            if(pToolBar)
                pToolBar->m_recentDockInfo.m_recentSliderInfo.m_rectDockedRect = rect;


        }

        m_wndBar1.DockToFrameWindow(CBRS_LEFT,m_wndBar1.GetAHRestoredRect());
        ShowPane(m_wndBar1, TRUE,FALSE, FALSE);
        m_wndBar2.DockToFrameWindow(CBRS_RIGHT,m_wndBar2.GetAHRestoredRect());
        ShowPane(m_wndBar2, TRUE,FALSE, FALSE);

    //for tabbed pane
    CTabbedPane *pTabbedPane;
    m_wndTab1.DockToFrameWindow(CBRS_BOTTOM,m_wndTab1.GetAHRestoredRect());
        m_wndTab2.AttachToTabWnd(&m_wndTab1, DM_SHOW, FALSE,reinterpret_cast<CDockablePane**>(&pTabbedPane));
        m_wndTab3.AttachToTabWnd(&m_wndTab1, DM_SHOW, FALSE,reinterpret_cast<CDockablePane**>(&pTabbedPane));

    ShowPane(m_wndTab1, TRUE,FALSE, FALSE);
    ShowPane(m_wndTab2, TRUE,FALSE, FALSE);
    ShowPane(m_wndTab3, TRUE,FALSE, FALSE);

    SetRedraw(TRUE);
        RedrawWindow(NULL, NULL, RDW_INVALIDATE | RDW_UPDATENOW | RDW_ERASE | RDW_ALLCHILDREN);
        AdjustClientArea();

}