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No real changes, just cleanup wxMSW wxScrollBar a little.

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Get rid of old, Win16-compatible, commented out code.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@63586 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2010-02-28 11:30:51 +00:00
parent b96a56e60e
commit 8ae8032cf9
1 changed files with 14 additions and 43 deletions
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49
src/msw/scrolbar.cpp
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@@ -106,46 +106,21 @@ wxScrollBar::~wxScrollBar(void)
}
bool wxScrollBar::MSWOnScroll(int WXUNUSED(orientation), WXWORD wParam,
WXWORD pos, WXHWND WXUNUSED(control))
WXWORD WXUNUSED(pos), WXHWND WXUNUSED(control))
{
// current and max positions
int position,
maxPos, trackPos = pos;
wxUnusedVar(trackPos);
// when we're dragging the scrollbar we can't use pos parameter because it
// is limited to 16 bits
// JACS: now always using GetScrollInfo, since there's no reason
// not to
// if ( wParam == SB_THUMBPOSITION || wParam == SB_THUMBTRACK )
{
SCROLLINFO scrollInfo;
wxZeroMemory(scrollInfo);
scrollInfo.cbSize = sizeof(SCROLLINFO);
// also get the range if we call GetScrollInfo() anyhow -- this is less
// expensive than call it once here and then call GetScrollRange()
// below
// don't use pos parameter because it is limited to 16 bits, get the full
// 32 bit position from the control itself instead
WinStruct<SCROLLINFO> scrollInfo;
scrollInfo.fMask = SIF_RANGE | SIF_POS | SIF_TRACKPOS;
if ( !::GetScrollInfo(GetHwnd(), SB_CTL, &scrollInfo) )
{
wxLogLastError(wxT("GetScrollInfo"));
return false;
}
trackPos = scrollInfo.nTrackPos;
position = scrollInfo.nPos;
maxPos = scrollInfo.nMax;
}
#if 0
else
{
position = ::GetScrollPos((HWND) control, SB_CTL);
int minPos;
::GetScrollRange((HWND) control, SB_CTL, &minPos, &maxPos);
}
#endif
int position = scrollInfo.nPos;
int maxPos = scrollInfo.nMax;
// A page size greater than one has the effect of reducing the effective
// range, therefore the range has already been boosted artificially - so
@@ -189,13 +164,10 @@ bool wxScrollBar::MSWOnScroll(int WXUNUSED(orientation), WXWORD wParam,
break;
case SB_THUMBPOSITION:
nScrollInc = trackPos - position;
scrollEvent = wxEVT_SCROLL_THUMBRELEASE;
break;
case SB_THUMBTRACK:
nScrollInc = trackPos - position;
scrollEvent = wxEVT_SCROLL_THUMBTRACK;
nScrollInc = scrollInfo.nTrackPos - position;
scrollEvent = wParam == SB_THUMBPOSITION ? wxEVT_SCROLL_THUMBRELEASE
: wxEVT_SCROLL_THUMBTRACK;
break;
case SB_ENDSCROLL:
@@ -258,7 +230,6 @@ int wxScrollBar::GetThumbPosition(void) const
wxLogLastError(wxT("GetScrollInfo"));
}
return scrollInfo.nPos;
// return ::GetScrollPos((HWND)m_hWnd, SB_CTL);
}
void wxScrollBar::SetScrollbar(int position, int thumbSize, int range, int pageSize,