cooldialogbar.cpp

此文件为VC++开发环境下的OPC client trend 源代码

        dwBorderStyle &= ~CBRS_BORDER_LEFT;
        lpncsp->rgrc[0].left += m_cxEdge;
        lpncsp->rgrc[0].right += -m_cxBorder;
        lpncsp->rgrc[0].bottom += -m_cxBorder;
        lpncsp->rgrc[0].top += m_cxGripper;
        m_rectBorder.right = m_rectBorder.left + m_cxEdge;
        break;
    default:
        m_rectBorder.SetRectEmpty();
        break;
    }

    SetBarStyle(dwBorderStyle);
}

void CCoolDialogBar::OnNcPaint() 
{
    EraseNonClient();

	CWindowDC dc(this);
    dc.Draw3dRect(m_rectBorder, GetSysColor(COLOR_BTNHIGHLIGHT),
                    GetSysColor(COLOR_BTNSHADOW));

	DrawGripper(dc);
	
	CRect pRect;
	GetClientRect( &pRect );
	InvalidateRect( &pRect, TRUE );
}

void CCoolDialogBar::OnNcLButtonDown(UINT nHitTest, CPoint point) 
{
    if (m_bTracking) return;

	if((nHitTest == HTSYSMENU) && !IsFloating())
	{
		ShowWindow(SW_HIDE);
        m_pDockContext->ToggleDocking();
	}
    else if ((nHitTest == HTMINBUTTON) && !IsFloating())
        m_pDockContext->ToggleDocking();
	else if ((nHitTest == HTCAPTION) && !IsFloating() && (m_pDockBar != NULL))
    {
        // start the drag
        ASSERT(m_pDockContext != NULL);
        m_pDockContext->StartDrag(point);
    }
    else if ((nHitTest == HTSIZE) && !IsFloating())
        StartTracking();
    else    
        CControlBar::OnNcLButtonDown(nHitTest, point);
}

UINT CCoolDialogBar::OnNcHitTest(CPoint point) 
{
    if (IsFloating())
        return CControlBar::OnNcHitTest(point);

    CRect rc;
    GetWindowRect(rc);
    point.Offset(-rc.left, -rc.top);
	if(m_rectClose.PtInRect(point))
		return HTSYSMENU;
	else if (m_rectUndock.PtInRect(point))
		return HTMINBUTTON;
	else if (m_rectGripper.PtInRect(point))
		return HTCAPTION;
    else if (m_rectBorder.PtInRect(point))
        return HTSIZE;
    else
        return CControlBar::OnNcHitTest(point);
}

void CCoolDialogBar::OnLButtonDown(UINT nFlags, CPoint point) 
{
    // only start dragging if clicked in "void" space
    if (m_pDockBar != NULL)
    {
        // start the drag
        ASSERT(m_pDockContext != NULL);
        ClientToScreen(&point);
        m_pDockContext->StartDrag(point);
    }
    else
    {
        CWnd::OnLButtonDown(nFlags, point);
    }
}

void CCoolDialogBar::OnLButtonDblClk(UINT nFlags, CPoint point) 
{
    // only toggle docking if clicked in "void" space
    if (m_pDockBar != NULL)
    {
        // toggle docking
        ASSERT(m_pDockContext != NULL);
        m_pDockContext->ToggleDocking();
    }
    else
    {
        CWnd::OnLButtonDblClk(nFlags, point);
    }
}

void CCoolDialogBar::StartTracking()
{
    SetCapture();

    // make sure no updates are pending
    RedrawWindow(NULL, NULL, RDW_ALLCHILDREN | RDW_UPDATENOW);
    m_pDockSite->LockWindowUpdate();

    m_ptOld = m_rectBorder.CenterPoint();
    m_bTracking = TRUE;
    
    m_rectTracker = m_rectBorder;
    if (!IsHorz()) m_rectTracker.bottom -= 4;

    OnInvertTracker(m_rectTracker);
}

void CCoolDialogBar::OnCaptureChanged(CWnd *pWnd) 
{
    if (m_bTracking && pWnd != this)
        StopTracking(FALSE); // cancel tracking

    CControlBar::OnCaptureChanged(pWnd);
}

void CCoolDialogBar::StopTracking(BOOL bAccept)
{
    OnInvertTracker(m_rectTracker);
    m_pDockSite->UnlockWindowUpdate();
    m_bTracking = FALSE;
    ReleaseCapture();
    
    if (!bAccept) return;

    int maxsize, minsize, newsize;
    CRect rcc;
    m_pDockSite->GetWindowRect(rcc);

    newsize = IsHorz() ? m_sizeHorz.cy : m_sizeVert.cx;
    maxsize = newsize + (IsHorz() ? rcc.Height() : rcc.Width());
    minsize = IsHorz() ? m_sizeMin.cy : m_sizeMin.cx;

    CPoint point = m_rectTracker.CenterPoint();
    switch (m_nDockBarID)
    {
    case AFX_IDW_DOCKBAR_TOP:
        newsize += point.y - m_ptOld.y; break;
    case AFX_IDW_DOCKBAR_BOTTOM:
        newsize += -point.y + m_ptOld.y; break;
    case AFX_IDW_DOCKBAR_LEFT:
        newsize += point.x - m_ptOld.x; break;
    case AFX_IDW_DOCKBAR_RIGHT:
        newsize += -point.x + m_ptOld.x; break;
    }

    newsize = max(minsize, min(maxsize, newsize));

    if (IsHorz())
        m_sizeHorz.cy = newsize;
    else
        m_sizeVert.cx = newsize;

    m_pDockSite->RecalcLayout();
}

void CCoolDialogBar::OnInvertTracker(const CRect& rect)
{
    ASSERT_VALID(this);
    ASSERT(!rect.IsRectEmpty());
    ASSERT(m_bTracking);

    CRect rct = rect, rcc, rcf;
    GetWindowRect(rcc);
    m_pDockSite->GetWindowRect(rcf);

    rct.OffsetRect(rcc.left - rcf.left, rcc.top - rcf.top);
    rct.DeflateRect(1, 1);

    CDC *pDC = m_pDockSite->GetDCEx(NULL,
        DCX_WINDOW|DCX_CACHE|DCX_LOCKWINDOWUPDATE);

    CBrush* pBrush = CDC::GetHalftoneBrush();
    HBRUSH hOldBrush = NULL;
    if (pBrush != NULL)
        hOldBrush = (HBRUSH)SelectObject(pDC->m_hDC, pBrush->m_hObject);

    pDC->PatBlt(rct.left, rct.top, rct.Width(), rct.Height(), PATINVERT);

    if (hOldBrush != NULL)
        SelectObject(pDC->m_hDC, hOldBrush);

    m_pDockSite->ReleaseDC(pDC);
}

BOOL CCoolDialogBar::IsHorz() const
{
    return (m_nDockBarID == AFX_IDW_DOCKBAR_TOP ||
        m_nDockBarID == AFX_IDW_DOCKBAR_BOTTOM);
}

CPoint& CCoolDialogBar::ClientToWnd(CPoint& point)
{
    if (m_nDockBarID == AFX_IDW_DOCKBAR_BOTTOM)
        point.y += m_cxEdge;
    else if (m_nDockBarID == AFX_IDW_DOCKBAR_RIGHT)
        point.x += m_cxEdge;

    return point;
}

void CCoolDialogBar::DrawGripper(CDC & dc)
{
    // no gripper if floating
	if( m_dwStyle & CBRS_FLOATING )
		return;

	// -==HACK==-
	// in order to calculate the client area properly after docking,
	// the client area must be recalculated twice (I have no idea why)
	m_pDockSite->RecalcLayout();
	// -==END HACK==-

	CRect gripper;
	GetWindowRect( gripper );
	ScreenToClient( gripper );
	gripper.OffsetRect( -gripper.left, -gripper.top );
	
	if( m_dwStyle & CBRS_ORIENT_HORZ ) {
		
		// gripper at left
		m_rectGripper.top		= gripper.top + 40;
		m_rectGripper.bottom	= gripper.bottom;
		m_rectGripper.left		= gripper.left;
		m_rectGripper.right	= gripper.left + 20;

		// draw close box
		m_rectClose.left = gripper.left + 7;
		m_rectClose.right = m_rectClose.left + 12;
		m_rectClose.top = gripper.top + 10;
		m_rectClose.bottom = m_rectClose.top + 12;
		dc.DrawFrameControl(m_rectClose, DFC_CAPTION, DFCS_CAPTIONCLOSE);

		// draw docking toggle box
		m_rectUndock = m_rectClose;
		m_rectUndock.OffsetRect(0,13);
		dc.DrawFrameControl(m_rectUndock, DFC_CAPTION, DFCS_CAPTIONMAX);

		gripper.top += 38;
		gripper.bottom -= 10;
		gripper.left += 10;
		gripper.right = gripper.left+3;
        dc.Draw3dRect( gripper, m_clrBtnHilight, m_clrBtnShadow );
		
		gripper.OffsetRect(4, 0);
        dc.Draw3dRect( gripper, m_clrBtnHilight, m_clrBtnShadow );
	}
	
	else {
		
		// gripper at top
		m_rectGripper.top		= gripper.top;
		m_rectGripper.bottom	= gripper.top + 20;
		m_rectGripper.left		= gripper.left;
		m_rectGripper.right		= gripper.right - 40;

		// draw close box
		m_rectClose.right = gripper.right - 10;
		m_rectClose.left = m_rectClose.right - 11;
		m_rectClose.top = gripper.top + 7;
		m_rectClose.bottom = m_rectClose.top + 11;
		dc.DrawFrameControl(m_rectClose, DFC_CAPTION, DFCS_CAPTIONCLOSE);


		// draw docking toggle box
		m_rectUndock = m_rectClose;
		m_rectUndock.OffsetRect(-13,0);
		dc.DrawFrameControl(m_rectUndock, DFC_CAPTION, DFCS_CAPTIONMAX);

		gripper.right -= 38;
		gripper.left += 10;
		gripper.top += 10;
		gripper.bottom = gripper.top+3;
		dc.Draw3dRect( gripper, m_clrBtnHilight, m_clrBtnShadow );
		
		gripper.OffsetRect(0, 4);
        dc.Draw3dRect( gripper, m_clrBtnHilight, m_clrBtnShadow );
	}

}

void CCoolDialogBar::OnNcLButtonDblClk(UINT nHitTest, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
    if ((m_pDockBar != NULL) && (nHitTest == HTCAPTION))
    {
        // toggle docking
        ASSERT(m_pDockContext != NULL);
        m_pDockContext->ToggleDocking();
    }
    else
    {
        CWnd::OnNcLButtonDblClk(nHitTest, point);
    }
}