CSize CBCGPReBar::CalcFixedLayout(BOOL bStretch, BOOL bHorz)
{
ASSERT_VALID(this);
ASSERT(::IsWindow(m_hWnd));
// the union of the band rectangles is the total bounding rect
int nCount = (int) DefWindowProc(RB_GETBANDCOUNT, 0, 0);
REBARBANDINFO rbBand;
rbBand.cbSize = globalData.GetRebarBandInfoSize ();
int nTemp;
// sync up hidden state of the bands
for (nTemp = nCount; nTemp--; )
{
rbBand.fMask = RBBIM_CHILD|RBBIM_STYLE;
VERIFY(DefWindowProc(RB_GETBANDINFO, nTemp, (LPARAM)&rbBand));
CBCGPControlBar* pBar = DYNAMIC_DOWNCAST(CBCGPControlBar, CWnd::FromHandlePermanent(rbBand.hwndChild));
BOOL bWindowVisible;
if (pBar != NULL)
bWindowVisible = pBar->IsVisible();
else
bWindowVisible = (::GetWindowLong(rbBand.hwndChild, GWL_STYLE) & WS_VISIBLE) != 0;
BOOL bBandVisible = (rbBand.fStyle & RBBS_HIDDEN) == 0;
if (bWindowVisible != bBandVisible)
VERIFY(DefWindowProc(RB_SHOWBAND, nTemp, bWindowVisible));
}
// determine bounding rect of all visible bands
CRect rectBound; rectBound.SetRectEmpty();
for (nTemp = nCount; nTemp--; )
{
rbBand.fMask = RBBIM_STYLE;
VERIFY(DefWindowProc(RB_GETBANDINFO, nTemp, (LPARAM)&rbBand));
if ((rbBand.fStyle & RBBS_HIDDEN) == 0)
{
CRect rect;
VERIFY(DefWindowProc(RB_GETRECT, nTemp, (LPARAM)&rect));
rectBound |= rect;
}
}
// add borders as part of bounding rect
if (!rectBound.IsRectEmpty())
{
CRect rect; rect.SetRectEmpty();
CalcInsideRect(rect, bHorz);
rectBound.right -= rect.Width();
rectBound.bottom -= rect.Height();
}
bStretch = 1;
return CSize((bHorz && bStretch) ? 32767 : rectBound.Width(),
(!bHorz && bStretch) ? 32767 : rectBound.Height());
}
LRESULT CBCGPReBar::OnShowBand(WPARAM wParam, LPARAM)
{
LRESULT lResult = Default();
if (lResult)
{
// keep window visible state in sync with band visible state
REBARBANDINFO rbBand;
rbBand.cbSize = globalData.GetRebarBandInfoSize ();
rbBand.fMask = RBBIM_CHILD|RBBIM_STYLE;
VERIFY(DefWindowProc(RB_GETBANDINFO, wParam, (LPARAM)&rbBand));
CBCGPControlBar* pBar = DYNAMIC_DOWNCAST(CBCGPControlBar, CWnd::FromHandlePermanent(rbBand.hwndChild));
BOOL bWindowVisible;
if (pBar != NULL)
bWindowVisible = pBar->IsVisible();
else
bWindowVisible = (::GetWindowLong(rbBand.hwndChild, GWL_STYLE) & WS_VISIBLE) != 0;
BOOL bBandVisible = (rbBand.fStyle & RBBS_HIDDEN) == 0;
if (bWindowVisible != bBandVisible)
VERIFY(::ShowWindow(rbBand.hwndChild, bBandVisible ? SW_SHOW : SW_HIDE));
}
return lResult;
}
