sizecbar.cpp

// Hint: These classes are intended to be used as base classes. Do not // simply add your code to t

            pBar->GetWindowRect(&rcBar);
            nLengthBar = bHorz ? rcBar.Width() - 2 : rcBar.Height() - 2;
        }

        nLengthMin += nLengthBar;
        if (nLengthMin > nLengthTotal)
        {
            // split the row after fixed bar
            if (i < nThis)
            {
                m_pDockBar->m_arrBars.InsertAt(i + 1,
                    (CControlBar*) NULL);
                return FALSE;
            }
            
            // only this sizebar remains on the row, adjust it to minsize
            if (i == nThis)
            {
                if (bHorz)
                    m_szHorz.cx = m_szMinHorz.cx;
                else
                    m_szVert.cy = m_szMinVert.cy;

                return TRUE; // the dockbar will split the row for us
            }

            // we have enough bars - go negotiate with them
            m_pDockBar->m_arrBars.InsertAt(i, (CControlBar*) NULL);
            nLast = i - 1;
            break;
        }

        if (bIsSizingBar)
        {
            nLengthActual += bHorz ? pBar->m_szHorz.cx - 2 : 
                pBar->m_szVert.cy - 2;
            nWidthMax = max(nWidthMax, bHorz ? pBar->m_szHorz.cy :
                pBar->m_szVert.cx);
        }
        else
            nLengthAvail -= nLengthBar;
    }

    CSCBArray arrSCBars;
    GetRowSizingBars(arrSCBars);
    int nNumBars = arrSCBars.GetSize();
    int nDelta = nLengthAvail - nLengthActual;

    // return faster when there is only one sizing bar per row (this one)
    if (nNumBars == 1)
    {
        ASSERT(arrSCBars[0] == this);

        if (nDelta == 0)
            return TRUE;
        
        m_bKeepSize = FALSE;
        (bHorz ? m_szHorz.cx : m_szVert.cy) += nDelta;

        return TRUE;
    }

    // make all the bars the same width
    for (i = 0; i < nNumBars; i++)
        if (bHorz)
            arrSCBars[i]->m_szHorz.cy = nWidthMax;
        else
            arrSCBars[i]->m_szVert.cx = nWidthMax;

    // distribute the difference between the bars,
    // but don't shrink them below their minsizes
    while (nDelta != 0)
    {
        int nDeltaOld = nDelta;
        for (i = 0; i < nNumBars; i++)
        {
            pBar = arrSCBars[i];
            int nLMin = bHorz ?
                pBar->m_szMinHorz.cx : pBar->m_szMinVert.cy;
            int nL = bHorz ? pBar->m_szHorz.cx : pBar->m_szVert.cy;

            if ((nL == nLMin) && (nDelta < 0) || // already at min length
                pBar->m_bKeepSize) // or wants to keep its size
                continue;

            // sign of nDelta
            int nDelta2 = (nDelta == 0) ? 0 : ((nDelta < 0) ? -1 : 1);

            (bHorz ? pBar->m_szHorz.cx : pBar->m_szVert.cy) += nDelta2;
            nDelta -= nDelta2;
            if (nDelta == 0) break;
        }
        // clear m_bKeepSize flags
        if ((nDeltaOld == nDelta) || (nDelta == 0))
            for (i = 0; i < nNumBars; i++)
                arrSCBars[i]->m_bKeepSize = FALSE;
    }

    return TRUE;
}

void CSizingControlBar::AlignControlBars()
{
    int nFirst, nLast, nThis;
    GetRowInfo(nFirst, nLast, nThis);

    BOOL bHorz = IsHorzDocked();
    BOOL bNeedRecalc = FALSE;
    int nAlign = bHorz ? -2 : 0;

    CRect rc, rcDock;
    m_pDockBar->GetWindowRect(&rcDock);

    for (int i = nFirst; i <= nLast; i++)
    {
        CSizingControlBar* pBar =
            (CSizingControlBar*) m_pDockBar->m_arrBars[i];
        if (HIWORD(pBar) == 0) continue; // placeholder
        if (!pBar->IsVisible()) continue;

        pBar->GetWindowRect(&rc);
        rc.OffsetRect(-rcDock.TopLeft());

        if (pBar->IsKindOf(RUNTIME_CLASS(CSizingControlBar)))
            rc = CRect(rc.TopLeft(),
                bHorz ? pBar->m_szHorz : pBar->m_szVert);

        if ((bHorz ? rc.left : rc.top) != nAlign)
        {
            if (!bHorz)
                rc.OffsetRect(0, nAlign - rc.top - 2);
            else if (m_nDockBarID == AFX_IDW_DOCKBAR_TOP)
                rc.OffsetRect(nAlign - rc.left, -2);
            else
                rc.OffsetRect(nAlign - rc.left, 0);
            pBar->MoveWindow(rc);
            bNeedRecalc = TRUE;
        }
        nAlign += (bHorz ? rc.Width() : rc.Height()) - 2;
    }

    if (bNeedRecalc)
        m_pDockSite->DelayRecalcLayout();
}

void CSizingControlBar::OnUpdateCmdUI(CFrameWnd* pTarget,
                                      BOOL bDisableIfNoHndler)
{
    UNUSED_ALWAYS(bDisableIfNoHndler);
    UNUSED_ALWAYS(pTarget);
}

void CSizingControlBar::LoadState(LPCTSTR lpszProfileName)
{
    ASSERT_VALID(this);
    ASSERT(GetSafeHwnd()); // must be called after Create()

#if defined(_SCB_REPLACE_MINIFRAME) && !defined(_SCB_MINIFRAME_CAPTION)
    // compensate the caption miscalculation in CFrameWnd::SetDockState()
    CDockState state;
    state.LoadState(lpszProfileName);

    UINT nID = GetDlgCtrlID();
    for (int i = 0; i < state.m_arrBarInfo.GetSize(); i++)
    {
        CControlBarInfo* pInfo = (CControlBarInfo*)state.m_arrBarInfo[i];
        ASSERT(pInfo != NULL);
        if (!pInfo->m_bFloating)
            continue;
        
        // this is a floating dockbar - check the ID array
        for (int j = 0; j < pInfo->m_arrBarID.GetSize(); j++)
            if ((DWORD) pInfo->m_arrBarID[j] == nID)
            {
                // found this bar - offset origin and save settings
                pInfo->m_pointPos.x++;
                pInfo->m_pointPos.y +=
                    ::GetSystemMetrics(SM_CYSMCAPTION) + 1;
                pInfo->SaveState(lpszProfileName, i);
            }
    }
#endif //_SCB_REPLACE_MINIFRAME && !_SCB_MINIFRAME_CAPTION

    CWinApp* pApp = AfxGetApp();

    TCHAR szSection[256];
    wsprintf(szSection, _T("%s-SCBar-%d"), lpszProfileName,
        GetDlgCtrlID());

    m_szHorz.cx = max(m_szMinHorz.cx, (int) pApp->GetProfileInt(
        szSection, _T("sizeHorzCX"), m_szHorz.cx));
    m_szHorz.cy = max(m_szMinHorz.cy, (int) pApp->GetProfileInt(
        szSection, _T("sizeHorzCY"), m_szHorz.cy));

    m_szVert.cx = max(m_szMinVert.cx, (int) pApp->GetProfileInt(
        szSection, _T("sizeVertCX"), m_szVert.cx));
    m_szVert.cy = max(m_szMinVert.cy, (int) pApp->GetProfileInt(
        szSection, _T("sizeVertCY"), m_szVert.cy));

    m_szFloat.cx = max(m_szMinFloat.cx, (int) pApp->GetProfileInt(
        szSection, _T("sizeFloatCX"), m_szFloat.cx));
    m_szFloat.cy = max(m_szMinFloat.cy, (int) pApp->GetProfileInt(
        szSection, _T("sizeFloatCY"), m_szFloat.cy));
}

void CSizingControlBar::SaveState(LPCTSTR lpszProfileName)
{
    // place your SaveState or GlobalSaveState call in
    // CMainFrame's OnClose() or DestroyWindow(), not in OnDestroy()
    ASSERT_VALID(this);
    ASSERT(GetSafeHwnd());

    CWinApp* pApp = AfxGetApp();

    TCHAR szSection[256];
    wsprintf(szSection, _T("%s-SCBar-%d"), lpszProfileName,
        GetDlgCtrlID());

    pApp->WriteProfileInt(szSection, _T("sizeHorzCX"), m_szHorz.cx);
    pApp->WriteProfileInt(szSection, _T("sizeHorzCY"), m_szHorz.cy);

    pApp->WriteProfileInt(szSection, _T("sizeVertCX"), m_szVert.cx);
    pApp->WriteProfileInt(szSection, _T("sizeVertCY"), m_szVert.cy);

    pApp->WriteProfileInt(szSection, _T("sizeFloatCX"), m_szFloat.cx);
    pApp->WriteProfileInt(szSection, _T("sizeFloatCY"), m_szFloat.cy);
}

void CSizingControlBar::GlobalLoadState(CFrameWnd* pFrame,
                                        LPCTSTR lpszProfileName)
{
    POSITION pos = pFrame->m_listControlBars.GetHeadPosition();
    while (pos != NULL)
    {
        CSizingControlBar* pBar = 
            (CSizingControlBar*) pFrame->m_listControlBars.GetNext(pos);
        ASSERT(pBar != NULL);
        if (pBar->IsKindOf(RUNTIME_CLASS(CSizingControlBar)))
            pBar->LoadState(lpszProfileName);
    }
}

void CSizingControlBar::GlobalSaveState(CFrameWnd* pFrame,
                                        LPCTSTR lpszProfileName)
{
    POSITION pos = pFrame->m_listControlBars.GetHeadPosition();
    while (pos != NULL)
    {
        CSizingControlBar* pBar =
            (CSizingControlBar*) pFrame->m_listControlBars.GetNext(pos);
        ASSERT(pBar != NULL);
        if (pBar->IsKindOf(RUNTIME_CLASS(CSizingControlBar)))
            pBar->SaveState(lpszProfileName);
    }
}

#ifdef _SCB_REPLACE_MINIFRAME
#ifndef _SCB_MINIFRAME_CAPTION
/////////////////////////////////////////////////////////////////////////////
// CSCBDockContext Drag Operations

static void AdjustRectangle(CRect& rect, CPoint pt)
{
    int nXOffset = (pt.x < rect.left) ? (pt.x - rect.left) :
                    (pt.x > rect.right) ? (pt.x - rect.right) : 0;
    int nYOffset = (pt.y < rect.top) ? (pt.y - rect.top) :
                    (pt.y > rect.bottom) ? (pt.y - rect.bottom) : 0;
    rect.OffsetRect(nXOffset, nYOffset);
}

void CSCBDockContext::StartDrag(CPoint pt)
{
    ASSERT_VALID(m_pBar);
    m_bDragging = TRUE;

    InitLoop();

    ASSERT((m_pBar->m_dwStyle & CBRS_SIZE_DYNAMIC) != 0);

    // get true bar size (including borders)
    CRect rect;
    m_pBar->GetWindowRect(rect);
    m_ptLast = pt;
    CSize sizeHorz = m_pBar->CalcDynamicLayout(0, LM_HORZ | LM_HORZDOCK);
    CSize sizeVert = m_pBar->CalcDynamicLayout(0, LM_VERTDOCK);
    CSize sizeFloat = m_pBar->CalcDynamicLayout(0, LM_HORZ | LM_MRUWIDTH);

    m_rectDragHorz = CRect(rect.TopLeft(), sizeHorz);
    m_rectDragVert = CRect(rect.TopLeft(), sizeVert);

    // calculate frame dragging rectangle
    m_rectFrameDragHorz = CRect(rect.TopLeft(), sizeFloat);

#ifdef _MAC
    CMiniFrameWnd::CalcBorders(&m_rectFrameDragHorz,
        WS_THICKFRAME, WS_EX_FORCESIZEBOX);
#else
    CMiniFrameWnd::CalcBorders(&m_rectFrameDragHorz, WS_THICKFRAME);
#endif
    m_rectFrameDragHorz.DeflateRect(2, 2);
    m_rectFrameDragVert = m_rectFrameDragHorz;
    
    // adjust rectangles so that point is inside
    AdjustRectangle(m_rectDragHorz, pt);
    AdjustRectangle(m_rectDragVert, pt);
    AdjustRectangle(m_rectFrameDragHorz, pt);
    AdjustRectangle(m_rectFrameDragVert, pt);

    // initialize tracking state and enter tracking loop
    m_dwOverDockStyle = CanDock();
    Move(pt);   // call it here to handle special keys
    Track();
}
#endif //_SCB_MINIFRAME_CAPTION

/////////////////////////////////////////////////////////////////////////////
// CSCBMiniDockFrameWnd

IMPLEMENT_DYNCREATE(CSCBMiniDockFrameWnd, baseCSCBMiniDockFrameWnd);

BEGIN_MESSAGE_MAP(CSCBMiniDockFrameWnd, baseCSCBMiniDockFrameWnd)
    //{{AFX_MSG_MAP(CSCBMiniDockFrameWnd)
    ON_WM_NCLBUTTONDOWN()
    ON_WM_GETMINMAXINFO()
    ON_WM_WINDOWPOSCHANGING()
    ON_WM_SIZE()
    //}}AFX_MSG_MAP
END_MESSAGE_MAP()

BOOL CSCBMiniDockFrameWnd::Create(CWnd* pParent, DWORD dwBarStyle)
{
    // set m_bInRecalcLayout to avoid flashing during creation
    // RecalcLayout will be called once something is docked
    m_bInRecalcLayout = TRUE;

    DWORD dwStyle = WS_POPUP|WS_CAPTION|WS_SYSMENU|MFS_MOVEFRAME|
        MFS_4THICKFRAME|MFS_SYNCACTIVE|MFS_BLOCKSYSMENU|
        FWS_SNAPTOBARS;

    if (dwBarStyle & CBRS_SIZE_DYNAMIC)
        dwStyle &= ~MFS_MOVEFRAME;

    DWORD dwExStyle = 0;
#ifdef _MAC
    if (dwBarStyle & CBRS_SIZE_DYNAMIC)
        dwExStyle |= WS_EX_FORCESIZEBOX;
    else
        dwStyle &= ~(MFS_MOVEFRAME|MFS_4THICKFRAME);
#endif

    if (!CMiniFrameWnd::CreateEx(dwExStyle,
        NULL, &afxChNil, dwStyle, rectDefault, pParent))
    {
        m_bInRecalcLayout = FALSE;
        return FALSE;
    }
    dwStyle = dwBarStyle & (CBRS_ALIGN_LEFT|CBRS_ALIGN_RIGHT) ?
        CBRS_ALIGN_LEFT : CBRS_ALIGN_TOP;
    dwStyle |= dwBarStyle & CBRS_FLOAT_MULTI;
    CMenu* pSysMenu = GetSystemMenu(FALSE);
    //pSysMenu->DeleteMenu(SC_SIZE, MF_BYCOMMAND);
    CString strHide;
    if (strHide.LoadString(AFX_IDS_HIDE))
    {
        pSysMenu->DeleteMenu(SC_CLOSE, MF_BYCOMMAND);
        pSysMenu->AppendMenu(MF_STRING|MF_ENABLED, SC_CLOSE, strHide);
    }

    // must initially create with parent frame as parent
    if (!m_wndDockBar.Create(pParent, WS_CHILD | WS_VISIBLE | dwStyle,
        AFX_IDW_DOCKBAR_FLOAT))
    {
        m_bInRecalcLayout = FALSE;
        return FALSE;
    }

    // set parent to CMiniDockFrameWnd
    m_wndDockBar.SetParent(this);
    m_bInRecalcLayout = FALSE;

    return TRUE;
}

void CSCBMiniDockFrameWnd::OnNcLButtonDown(UINT nHitTest, CPoint point)
{
    if (nHitTest == HTCAPTION || nHitTest == HTCLOSE)
    {
        baseCSCBMiniDockFrameWnd::OnNcLButtonDown(nHitTest, point);
        return;
    }

    if (GetSizingControlBar() != NULL)
        CMiniFrameWnd::OnNcLButtonDown(nHitTest, point);
    else
        baseCSCBMiniDockFrameWnd::OnNcLButtonDown(nHitTest, point);
}

CSizingControlBar* CSCBMiniDockFrameWnd::GetSizingControlBar()
{
    CWnd* pWnd = GetWindow(GW_CHILD); // get the dockbar
    if (pWnd == NULL)
        return NULL;
    
    pWnd = pWnd->GetWindow(GW_CHILD); // get the controlbar
    if (pWnd == NULL)
        return NULL;

    if (!pWnd->IsKindOf(RUNTIME_CLASS(CSizingControlBar)))
        return NULL;

    return (CSizingControlBar*) pWnd;
}

void CSCBMiniDockFrameWnd::OnSize(UINT nType, int cx, int cy) 
{
    CSizingControlBar* pBar = GetSizingControlBar();
    if ((pBar != NULL) && (GetStyle() & MFS_4THICKFRAME) == 0
        && pBar->IsVisible() &&
        cx + 4 >= pBar->m_szMinFloat.cx &&
        cy + 4 >= pBar->m_szMinFloat.cy)
        pBar->m_szFloat = CSize(cx + 4, cy + 4);

    baseCSCBMiniDockFrameWnd::OnSize(nType, cx, cy);
}

void CSCBMiniDockFrameWnd::OnGetMinMaxInfo(MINMAXINFO FAR* lpMMI)
{
    baseCSCBMiniDockFrameWnd::OnGetMinMaxInfo(lpMMI);

    CSizingControlBar* pBar = GetSizingControlBar();
    if (pBar != NULL)
    {
        CRect r(CPoint(0, 0), pBar->m_szMinFloat - CSize(4, 4));
#ifndef _SCB_MINIFRAME_CAPTION
        CMiniFrameWnd::CalcBorders(&r, WS_THICKFRAME);
#else
        CMiniFrameWnd::CalcBorders(&r, WS_THICKFRAME|WS_CAPTION);
#endif //_SCB_MINIFRAME_CAPTION
        lpMMI->ptMinTrackSize.x = r.Width();
        lpMMI->ptMinTrackSize.y = r.Height();
    }
}

void CSCBMiniDockFrameWnd::OnWindowPosChanging(WINDOWPOS FAR* lpwndpos) 
{
    if ((GetStyle() & MFS_4THICKFRAME) != 0)
    {
        CSizingControlBar* pBar = GetSizingControlBar();
        if (pBar != NULL)
        {
            lpwndpos->flags |= SWP_NOSIZE; // don't size this time
            // prevents flicker
            pBar->m_pDockBar->ModifyStyle(0, WS_CLIPCHILDREN);

            // enable diagonal resizing
            DWORD dwStyleRemove = MFS_4THICKFRAME;
#ifndef _SCB_MINIFRAME_CAPTION
            // remove caption
            dwStyleRemove |= WS_SYSMENU|WS_CAPTION;
#endif
            ModifyStyle(dwStyleRemove, 0);

            DelayRecalcLayout();
            pBar->PostMessage(WM_NCPAINT);
        }
    }

    CMiniFrameWnd::OnWindowPosChanging(lpwndpos);
}

#endif //_SCB_REPLACE_MINIFRAME