// TODO: Avoid flickering!
void MScrollView::UpdateScrollInfo()
{
MRect rcClient;
MScrollView::GetClientRect(&rcClient);
SCROLLINFO si;
si.cbSize = sizeof(si);
si.fMask = SIF_ALL | SIF_DISABLENOSCROLL;
si.nMin = 0;
si.nMax = Extent().cx;
si.nPage = rcClient.Width();
if (static_cast<UINT>(si.nMax) < si.nPage)
ScrollPos().x = 0;
si.nPos = ScrollPos().x;
SetHScrollInfo(&si, TRUE);
si.cbSize = sizeof(si);
si.fMask = SIF_ALL | SIF_DISABLENOSCROLL;
si.nMin = 0;
si.nMax = Extent().cy;
si.nPage = rcClient.Height();
if (static_cast<UINT>(si.nMax) < si.nPage)
ScrollPos().y = 0;
si.nPos = ScrollPos().y;
SetVScrollInfo(&si, TRUE);
::InvalidateRect(m_hwndParent, NULL, TRUE);
}
void MScrollView::UpdateCtrlsPos()
{
const int siz = static_cast<int>(size());
HDWP hDWP = ::BeginDeferWindowPos(siz);
if (hDWP)
{
for (int i = 0; i < siz; ++i)
{
MRect& rcCtrl = m_vecInfo[i].m_rcCtrl;
::DeferWindowPos(hDWP, m_vecInfo[i].m_hwndCtrl,
NULL,
rcCtrl.left - ScrollPos().x, rcCtrl.top - ScrollPos().y,
rcCtrl.Width(), rcCtrl.Height(),
SWP_NOACTIVATE | SWP_NOZORDER | SWP_NOCOPYBITS);
}
::EndDeferWindowPos(hDWP);
}
}
void MScrollView::VScroll(int nSB_, int nPos)
{
SCROLLINFO si;
si.cbSize = sizeof(si);
si.fMask = SIF_ALL;
GetVScrollInfo(&si);
switch (nSB_)
{
case SB_TOP:
SetVScrollPos(0);
break;
case SB_BOTTOM:
SetVScrollPos(si.nMax - si.nPage);
break;
case SB_LINELEFT:
SetVScrollPos(si.nPos - 16);
break;
case SB_LINERIGHT:
SetVScrollPos(si.nPos + 16);
break;
case SB_PAGELEFT:
SetVScrollPos(si.nPos - si.nPage);
break;
case SB_PAGERIGHT:
SetVScrollPos(si.nPos + si.nPage);
break;
case SB_THUMBPOSITION:
case SB_THUMBTRACK:
SetVScrollPos(nPos);
break;
}
ScrollPos().y = GetVScrollPos();
UpdateAll();
}
dim::point2di GUIListGadget::getItemsStartPos() const
{
dim::point2di ScrollPos(getScrollPosition());
return dim::point2di(Rect_.Left + 2 + ScrollPos.X, Rect_.Top + 2 + COLUMN_HEIGHT + ScrollPos.Y);
}
