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[WIN32SS]

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- Fix some scrollbar bugs as indicated by user32_apitest:SetScrollInfo
- Silence a trace
CORE-9553 #resolve

svn path=/trunk/; revision=67227
This commit is contained in:
Thomas Faber 2015-04-17 18:02:09 +00:00
parent 2829ed5afe
commit d9c9bf096c
2 changed files with 16 additions and 17 deletions
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29
reactos/win32ss/user/ntuser/scrollbar.c
View file

@ -347,6 +347,8 @@ co_IntSetScrollInfo(PWND Window, INT nBar, LPCSCROLLINFO lpsi, BOOL bRedraw)
PSBDATA pSBData;
DWORD OldPos = 0;
BOOL bChangeParams = FALSE; /* Don't show/hide scrollbar if params don't change */
UINT MaxPage;
int MaxPos;
ASSERT_REFS_CO(Window);
@ -404,14 +406,12 @@ co_IntSetScrollInfo(PWND Window, INT nBar, LPCSCROLLINFO lpsi, BOOL bRedraw)
/* Set the scroll range */
if (lpsi->fMask & SIF_RANGE)
{
/* Invalid range -> range is set to (0,0) */
if ((lpsi->nMin > lpsi->nMax) ||
((UINT)(lpsi->nMax - lpsi->nMin) >= 0x80000000))
if (lpsi->nMin > lpsi->nMax)
{
Info->nMin = 0;
Info->nMax = 0;
pSBData->posMin = 0;
pSBData->posMax = 0;
Info->nMin = lpsi->nMin;
Info->nMax = lpsi->nMin;
pSBData->posMin = lpsi->nMin;
pSBData->posMax = lpsi->nMin;
bChangeParams = TRUE;
}
else if (Info->nMin != lpsi->nMin || Info->nMax != lpsi->nMax)
@ -425,23 +425,22 @@ co_IntSetScrollInfo(PWND Window, INT nBar, LPCSCROLLINFO lpsi, BOOL bRedraw)
}
/* Make sure the page size is valid */
if (Info->nPage < 0)
MaxPage = abs(Info->nMax - Info->nMin) + 1;
if (Info->nPage > MaxPage)
{
pSBData->page = Info->nPage = 0;
}
else if ((Info->nMax - Info->nMin + 1UL) < Info->nPage)
{
pSBData->page = Info->nPage = Info->nMax - Info->nMin + 1;
pSBData->page = Info->nPage = MaxPage;
}
/* Make sure the pos is inside the range */
MaxPos = Info->nMax + 1 - (int)max(Info->nPage, 1);
ASSERT(MaxPos >= Info->nMin);
if (Info->nPos < Info->nMin)
{
pSBData->pos = Info->nPos = Info->nMin;
}
else if (Info->nPos > (Info->nMax - max((int)Info->nPage - 1, 0)))
else if (Info->nPos > MaxPos)
{
pSBData->pos = Info->nPos = Info->nMax - max(Info->nPage - 1, 0);
pSBData->pos = Info->nPos = MaxPos;
}
/*

4
reactos/win32ss/user/user32/controls/scrollbar.c
View file

@ -1043,7 +1043,7 @@ static void IntScrollCreateScrollBar(
Info.cbSize = sizeof(SCROLLINFO);
Info.fMask = SIF_RANGE | SIF_PAGE | SIF_POS;
Info.nMin = 0;
Info.nMax = 100;
Info.nMax = 0;
Info.nPage = 0;
Info.nPos = 0;
Info.nTrackPos = 0;
@ -1189,7 +1189,7 @@ ScrollBarWndProc_common(WNDPROC DefWindowProc, HWND Wnd, UINT Msg, WPARAM wParam
{
if (!pWnd->fnid)
{
ERR("ScrollBar CTL size %d\n",(sizeof(SBWND)-sizeof(WND)));
TRACE("ScrollBar CTL size %d\n", (sizeof(SBWND)-sizeof(WND)));
if ( pWnd->cbwndExtra != (sizeof(SBWND)-sizeof(WND)) )
{
ERR("Wrong Extra bytes for Scrollbar!\n");